CN202461109U

CN202461109U - Continuous casting and rolling complete equipment of lead strip for preparing grid

Info

Publication number: CN202461109U
Application number: CN2011204734434U
Authority: CN
Inventors: 冯旭龙; 唐晓东
Original assignee: Deyang Hongguang Science & Technology Co Ltd
Current assignee: Deyang Hongguang Science & Technology Co Ltd
Priority date: 2011-11-24
Filing date: 2011-11-24
Publication date: 2012-10-03
Anticipated expiration: 2021-11-24

Abstract

The utility model relates to continuous casting and rolling complete equipment and especially provides continuous casting and rolling complete equipment of a lead strip for preparing grids, which comprises a steel belt wheel type continuous casting machine, a first rolling mill, a second rolling mill, a forced cooling device arranged between the first rolling mill and the second rolling mill, and roller ways for connecting all the above parts together. Rollers in all passes of the second rolling mill are respectively driven by a speed regulation motor independently. A reeling mechanism is also driven by the speed regulation motor. The forced cooling device comprises at least one cooling water tank. The upper parts of the two sides of the cooling water tank are respectively provided with an opening. Upper spacing rollers and lower spacing rollers are respectively arranged in the openings. The cooling water tank is internally provided with a down-pressing structure. A lead strip conveying surface formed by the down-pressing structure and lower spacing rollers on the two sides of the equipment is in an arc shape with an upward opening. The multi-temperature-period continuous rolling of lead strips can be realized through the first rolling mill, the forced cooling device and the second rolling mill. Therefore, the performances of lead strips produced by the equipment are better than the performances of lead strips obtained through the conventional continuous casting and rolling process. The continuous casting and rolling complete equipment is suitable for the production of lead strips for the plate electrode grids of lead-acid batteries.

Description

The preparation grid is with the continuous casting and rolling complete set of equipments of plumbous band

Technical field

The utility model relates to the continuous casting and rolling complete set of equipments, especially a kind of continuous casting and rolling complete set of equipments for preparing grid with plumbous band.

Background technology

Electrode plate grid plays the fixedly effect of active material simultaneously as the electronics collector, is the important component part of lead-acid accumulator.In the use of lead-acid accumulator, the active material of porous can permeate sulfuric acid, causes grid to corrode, and influences the life-span that recycles of grid, and then the durability of battery is caused significant effects; Simultaneously, the delivery request grid of electronics has good electrical conductivity, and requiring in use, the corrosion product of grid has lower impedance, especially anode plate grid.Have confidential relation between the corrosion resistance of grid and the crystal structure, therefore in order to improve the crystal structure of grid, with decay resistance and the passivation product that improves grid, usual way comprises the employing of alloying elements such as adding antimony and casting-rolling technology.Compare with the grid of direct casting, the casting moulding process is at first cast strand, and calendering forms thin lead ribbon to strand then, finally forms grid through technologies such as otch stretchings afterwards.Because organizing of rolling feasible plumbous band is finer and close, mechanical strength is high, the endurable burn into cycle life of passing through of the grid of therefore being produced prolongs.

At present, the casting moulding process comprises casting and rolling process and conventional casting-rolling technology.Wherein, conventional casting-rolling technology adopts the combination of die casting and milling train, easy enforcement, but production efficiency is low, and plumbous liquid is a large amount of during die casting exposes and the position dispersion, pollutes big; The automaticity of continuous casting and rolling is high, production efficiency is high, and plumbous liquid only exposes near crystallizing wheel during continuous casting, can effectively avoid lead fume to pollute through the mode of concentrating exhausting.But lead density is very big---1m ³Heavily about 11.3 tons of pure lead, tensile strength is extremely low---the tensile strength of pure lead is about 3～7kgf/mm ², and matter is soft, and therefore the preparation grid uses the continuous casting and rolling complete set of equipments of plumbous band all to have following problem at present:

One, continuous casting aspect

At present, commonly used continuous casting installation for casting comprises and soaks casting machine, melt traction continuous casting installation for casting, double-roller continuous casting machine, the wheeled conticaster of steel band.

Soak casting machine, immerse in the molten bath, have certain thickness metal tape in the shaping roller continuous formation in surface through cooling forming roller with rotation.Melt traction continuous casting installation for casting, the cooling forming roller through tundish and rotation matches, and the molten metal in the tundish molten bath applies and formation has certain thickness metal tape at the cooling forming roller surface of rotation incessantly.But because gravity can destroy the continuity of deposite metal on roller, when casting machine is soaked in employing with the plumbous band of melt traction continuous casting installation for casting continuous casting, can't the bigger lead band of continuous casting thickness, especially be directed against the metal of freezing range broad such as low-antimony-lead alloy.At present, adopt the plumbous tape thickness of both continuous castings to be generally about 1mm.But the lead band that soaks casting machine and melt traction continuous casting installation for casting continuous casting is thin, and setting rate is fast, no die cavity, exhaust and convenient, so cast sturcture is good, casting flaw such as seldom form bubble, crackle and loosen.

Double-roller continuous casting machine is usually used in the sheet billet continuous casting of steel band, and two rollers are oppositely arranged, and molten metal pours into two roller gap places by two rollers top and forms the molten bath; With the rotation of roller, the molten metal in the molten bath forms continuous base shell and gets into the cooling roller bed of roller below through the cooling of roller; Not solidified molten metal further cools off at cooling roller bed in the base shell, and final formation solidifies strand completely.But when being used for plumbous continuous casting; Because plumbous matter is soft, tensile strength is low and density is big; Therefore base shell intensity is low, yielding, and the uniformity of producing plumbous tape thickness in order to guarantee just needs the amount of not solidifying plumbous liquid in the restriction base shell; Therefore be difficult to improve the plumbous tape thickness of its continuous casting, the thickness of the plumbous band of its continuous casting usually about 5mm, be no more than 10mm.

The wheeled conticaster of steel band; Be usually used in the continuous casting of non-ferrous alloy bars such as aluminium bar, copper rod, comprise crystallizing wheel, steel band train, steel band without a head, steel band is tightened through the steel band train and with the rotation campaign of active wheeled steel; Crystallizing wheel rotation and external cylindrical surface are provided with the crystallization cavity of indent; Crystallizing wheel is installed on the steel band outside, and steel band is walked around crystallizing wheel and is close to the part external cylindrical surface of crystallizing wheel, and the crystallization cavity of sealing this part through steel band forms the die cavity that circumferentially extends along crystallizing wheel; Die cavity two ends, an end are that casting gate, the other end are the throwing mouth, and the cooling system through steel band, the cooling system of crystallizing wheel are implemented cooling indirectly to die cavity, and the molten metal that is injected by casting gate progressively solidifies in die cavity and forms strand; With the motion of crystallizing wheel, steel band, strand is pulled out by the throwing mouth.Form airtight die cavity owing to surround crystallization cavity, for strand provides good supporting through steel band; Casting gate is descending at last, throwing mouth, and the metal fluid power carries out fluid infusion to solidification shrinkage automatically, has therefore guaranteed the stability of casting blank shape.But steel band is tightened through a plurality of wheeled steels and with the rotation campaign of active wheeled steel; Therefore require steel band thinner; Possesses better elastic and toughness; The requirement of elasticity, toughness has limited the raising of steel band self intensity, has limited the especially raising of width dimensions of casting blank cross-section size, the thickness of the plumbous band of its continuous casting usually about 10mm, be no more than 15mm.

Soak casting machine and melt traction continuous casting installation for casting relatively, the wheeled conticaster of double-roller continuous casting machine and steel band can the bigger wheeled conticaster of lead band, especially steel band of continuous casting thickness.But double-roller continuous casting machine constitutes die cavity through the base shell, and the wheeled conticaster of steel band is surrounded by steel band and crystallizing wheel and constitutes die cavity, and all there is the problem of solidification shrinkage and exhaust problem in both, the pore of the plumbous band of producing, loose more relatively, and compactness is relatively poor relatively; Simultaneously, because thickness is bigger, cool time is longer, so crystal grain is big, and cast sturcture is poor.Especially, with the increase of slab thickness, can further aggravate the problems referred to above.

Two, tandem rolling aspect

Tandem rolling is continous way production; Strip is in continuous rolling process; Need certain tractive force to guarantee that the feeding of strip also is that strip possesses certain force of strain; And the low more tension force that then requires of the temperature that drafts is bigger, the passage of continuous rolling is more, rolling is big more, and the tension force of the limit receives the restriction of power resistance strength, cross dimensions etc.Therefore, rolling like steel band generally includes hot rolling and cold rolling, at first is higher than the rolling of normal temperature through improving rolling temperature, and the resistance of deformation when reducing heavy reduction guarantees low tension force when obtaining heavy reduction; But be higher than the rolling of normal temperature, the influence of factor such as expanded with heat and contract with cold, the control accuracy of template is low, and surface quality is poor, and it is rolling after being higher than normal temperature rolling, to carry out normal temperature usually.Plumbous tension, shearing and creep strength are all extremely low, though make lead possess good plastic deformation ability, make lead receive the influence of rolling tensile force bigger simultaneously, therefore will implement the tandem rolling of big rolling ratio to the lead band, and many temperature sections are rolling to be its inevitable choice.But there is certain technical difficulty in the tandem rolling of the lead band being implemented many temperature sections.

At first, the cooling of plumbous band can be adopted water-cooled or air cooling, and wherein water-cooled comprises spray cooling and immersion cooling again.But when adopting the cooling of high-pressure cooling water spray,, form zap pit at plumbous belt surface easily, even cause plumbous band to be punctured, therefore can't adopt by the water under high pressure line because plumbous matter is soft.And the immersion cooling can only be carried out after batching, and the cooling of rolling is because heat is very big; Therefore there is the slow problem of cooling rate; Plumbous band tissue can batch with cooling procedure in constantly grow up, and have temperature difference radially in the cooling procedure, and then cause rolling up inside and outside performance difference; And plumbous band is after batching under the hot condition, easily since the self gravitation influence be out of shape, and then cause that plate is wide, a milling train is rolling after thickness of slab uniformity difference and the influence.Therefore, adopt at present usually low pressure cool water shower and forced air-cooling that the lead band is cooled off, cooled off capabilities limits, cooling rate is slow, and cooling is apart from short-term, and cooling extent is little, makes the rolling meaning that loses of many temperature sections; And to realize big cooling extent; Just need to prolong the cooling distance, but when distance prolongs, also prolonged the growth time of crystal grain, can't the rolling structure of last milling train effectively be kept; The improve effect of last milling train to lead band tissue weakened; Under extreme case, even the lead band tissue of the lead band tissue of back one milling train maybe be caused arriving, the rolling meaning that loses of many temperature sections can be made equally inferior to the last milling train of arrival.

Secondly, for the connection between the milling train,, therefore only consider to realize the connection between the milling train through direct-connected mode because there is above-mentioned problem in the mode of batching.But direct-connected mode; Need the lead band of last milling train to be implemented traction through back one milling train; Because the restriction of cooling capacity, the lead band between two milling trains is longer, and plumbous tension, shear strength are extremely low; Therefore very easily at distortion of tension force effect stretched even broken belt, especially the poor synchronization different time at two milling trains appears.

In addition, so-called hot rolling promptly more than recrystallization temperature to strip carry out rolling, so-called cold rolling promptly below recrystallization temperature to strip carry out rolling.But the fusing point of pure lead is at 327 ℃; The fusing point of metal also is lower than 400 ℃ usually; According to formula---recrystallization temperature equals the absolute temperature fusing point and multiply by 0.4; The pure plumbous recrystallization temperature that calculates is-33 ℃, therefore, and the rolling hot rolling that belongs in the rolling mill practice under normal temperature condition of lead and metal.And there is not complicated phase transition process in lead in process of setting, only have a solidifying phase like pure lead, the therefore plumbous rolling and Technology for Heating Processing of improving rolling structure through the control to phase transition process that do not exist.At normal temperatures, lead and metal show good plastic deformation ability, and resistance of deformation is little; And need not annealing in process, therefore, the conventional casting-rolling technology of plumbous band all adopts single temperature section rolling at present; And in order to guarantee template and surface quality, this list temperature section is rolling to be that normal temperature is rolling.

Therefore, prepare grid at present and use the milling train unit of the continuous casting and rolling complete set of equipments of plumbous band only to comprise a milling train, only rolling to the single temperature section under the lead band enforcement normal temperature, limited by plumbous intensity, rolling than little, limited the raising of continuous casting and rolling lead band performance.

In conjunction with the problem of above-mentioned continuous casting aspect and the problem of tandem rolling aspect, the plumbous band of present continuous casting and rolling all adopts little thickness strand to add the rolling technology of normal temperature.Little thickness strand has made things convenient for the cooling of strand between continuous casting and tandem rolling simultaneously.Adapt with the plumbous band of the little thickness of continuous casting, conticaster adopts usually and soaks casting machine or melt traction continuous casting installation for casting, with the cast sturcture that improves plumbous band and reduce the restriction of casting speed to continuous casting and rolling speed.

The utility model content

The utility model technical problem to be solved provides a kind ofly can implement many temperature sections continuous rolling process to the lead band; And then can pass through big rolling ratio, make the plumbous band of producing on performance, be superior to the continuous casting and rolling complete set of equipments of the preparation grid of the plumbous band of existing continuous casting and rolling with plumbous band.

The utility model solves the technical scheme that its technical problem adopted: the preparation grid is with the continuous casting and rolling complete set of equipments of plumbous band; Comprise conticaster, milling train unit, spooler, cooling water system; Said conticaster links to each other through first roller-way with the milling train unit, and said milling train unit links to each other through the 4th roller-way with spooler; Said conticaster adopts the wheeled conticaster of steel band, and the wheeled conticaster of said steel band comprises casting machine frame, crystallizing wheel, steel band train, steel band without a head, the cooling system of steel band, access bridge; Said crystallizing wheel is installed on the casting machine frame and axial rotation, and the external cylindrical surface of said crystallizing wheel is provided with the crystallization cavity of indent; Crystallizing wheel is tightened and walked around to said steel band through the steel band train, and through the partially crystallizable chamber formation die cavity of steel band sealing crystallizing wheel, said die cavity two ends are respectively casting gate and throwing mouth; The lead band conveyor surface that is formed by access bridge is the smooth surface that an end is higher than the other end, the end that wherein access bridge is high be positioned at crystallizing wheel top and link to each other with first roller-way, a low end is adjacent with the throwing mouth; Said milling train unit comprises first milling train that links to each other with first roller-way and second milling train that links to each other with the 4th roller-way, and the roll of said second each passage of milling train is respectively by the buncher drive, and said spooler is driven by buncher; Between first milling train and second milling train, be provided with the pressure cooling device, said pressure cooling device links to each other through second roller-way with first milling train, and said pressure cooling device links to each other through the 3rd roller-way with second milling train; Said pressure cooling device comprises the cooling device frame, is installed at least one bosh on the cooling device frame, the water inlet pipe and the drainage system of bosh; The cell body of each bosh is respectively arranged with opening along the top of direction of transfer both sides; Said drainage system comprises the opening of both sides; Be respectively arranged with the upper limit roller and the lower limit roller of axis horizontal in the said both-side opening, the charging aperture and the discharging opening that constitute corresponding bosh respectively by the upper limit roller and the roll gap between the lower limit roller of both sides; Be provided with screw-down structure in the bosh between said charging aperture and discharging opening, the lead band conveyor surface that is formed by the lower limit roller of screw-down structure and both sides is the arch that opening makes progress.

Further, be respectively arranged with the shaping groove of ring-type on each topping roll of said first milling train and each bottom roll, constitute the moulding pass of rectangle and the topping roll of moulding pass both sides and bottom roll contact matching by the shaping groove of corresponding topping roll and bottom roll; Along direction of transfer, the corresponding moulding pass width of each passage of first milling train subtracts by increasing, highly pursuing.

Further; Be provided with the control system; The speed adjusting module of the speed adjusting module of said second each buncher of milling train, spooler buncher all links to each other with the control system; Between first milling train and second milling train, be provided with a tension-detecting mechanism that rolls that is used to detect corresponding plumbous band tension force that links to each other with the control system, between second milling train and spooler, be provided with the coiling tension testing agency that is used to detect corresponding plumbous band tension force that links to each other with the control system.Further; Being provided with tension-detecting mechanism between the casting that detects corresponding plumbous band tension force with continuous being used to of control system between the conticaster and first milling train, between first milling train and second milling train, be provided with the first milling train tension force micro-adjusting mechanism that links to each other with the control system.

As a kind of preferred; The said first milling train tension force micro-adjusting mechanism comprises the screw-down structure elevating mechanism of screw-down structure and adjustment screw-down structure lengthwise position; Said screw-down structure is through the fixed installation of screw-down structure elevating mechanism, and said screw-down structure elevating mechanism links to each other with the control system; Constitute by the force sensor of screw-down structure and to roll a tension-detecting mechanism.

As a kind of preferred; Said the 4th roller-way comprises that one section tension force detects roller-way; Said tension force detects roller-way and comprises the elastic support structure of one group of dance roller, dance roller, the displacement transducer of dance roller; Each dance roller is the arch that Open Side Down to be arranged and fixedly mounts through elastic support structure respectively, and each displacement transducer links to each other with the control system respectively; Detect roller-way by tension force and constitute coiling tension testing agency.

As a kind of preferred, said first roller-way comprises tilting section and horizontal segment, and said horizontal segment one end links to each other with the milling train unit, the other end links to each other with the bottom of tilting section; Tension-detecting mechanism comprises the torque sensor of measuring roll, fork, column, fork between said casting; Said measuring roll is installed in fork one end and is positioned at horizontal segment and the top of tilting section connecting place; The said fork other end and column are hinged, said column fixed installation.

Further, be provided with the steel band supporting construction at the corresponding die cavity of said crystallizing wheel radial outside partly, said steel band supporting construction is installed on the casting machine frame; Said steel band supporting construction comprises at least one group of supporter, said supporter comprise corresponding crystallization cavity the steel band supporting surface, lay respectively at along the axial both sides of crystallizing wheel and the respectively steel band stitching surface of corresponding crystallization cavity two side flange of steel band supporting surface; Said steel band is between supporter and crystallizing wheel, and the crystallizing wheel wheel rim of the both sides, syncrystallization chamber, a side side of the corresponding crystallizing wheel of said steel band is close to, the opposite side side is close to the steel band stitching surface and the steel band supporting surface of supporter; Be provided with the outer cooling device of supporting construction that links to each other with the cooling water system and supporting body surface is cooled off; Be respectively arranged with cavity in each supporter, said cavity links to each other with the cooling water system and constitutes cooling device in the supporting construction that supporter inside is cooled off; The cooling system of said steel band comprises steel band is sprayed the steel band spray cooling device of cooling and the contact cooling device that is made up of the steel band supporting construction.As a kind of preferred, said supporter adopts the backing roll that rolls and cooperates with steel band, and said backing roll is provided with one group of cooling water spray orifice that is communicated with the outside and interior cavity of backing roll of backing roll; The external cylindrical surface of said backing roll is provided with the ring-shaped groove of one group of coaxial arrangement, and the aperture in each cooling water spray orifice outside all is positioned at ring-shaped groove; Said steel band spray cooling device comprises the cooling water spray orifice of injection direction towards steel band, and the outer cooling device of said supporting construction comprises the cooling water spray orifice of injection direction towards the adjacent supports roller.

Further; By crossing the axial fore-and-aft plane of crystallizing wheel crystallizing wheel is divided into first area and second area; Said casting gate is positioned at the top of crystallizing wheel first area; Said throwing mouth is positioned at the bottom of crystallizing wheel second area, and said milling train unit is positioned at the outside of first area, and said first roller-way extends to the crystallizing wheel top by the outside of crystallizing wheel first area; Be provided with the slab supporting mechanism, said slab supporting mechanism is by the oblique throwing mouth position that extends below to crystallizing wheel, the outside of crystallizing wheel second area, and the end that said access bridge is low is positioned at the top of slab supporting mechanism away from crystallizing wheel one end.

The beneficial effect of the utility model is following: adopt the wheeled conticaster of steel band can guarantee the acquisition of big thickness strand, guarantee many temperature sections, big rolling than rolling enforcement.First milling train utilizes afterheat in casting that the lead band is implemented to be higher than the rolling of normal temperature; Be higher than the rolling of normal temperature; Strengthen bubble, crackle and loose seam effect that when cast formed, overcome the problem that the big thickness strand of the wheeled conticaster continuous casting of steel band forms casting flaw easily; Big drafts helps the refinement of crystal grain, has guaranteed the improvement to lead band tissue.Cold by force through forcing cooling device that the lead band is carried out, through the short cooling of strong shrinkage distance, guarantee being connected of first milling train and second milling train, and form buffering when the tension fluctuation through plumbous band between rolling.Through forcing the cooling of cooling device, second milling train carries out rolling at normal temperatures to the lead band, mainly plays the effect that surface quality was controlled and improved to template.Through the rolling enforcement of many temperature sections, make the performance of the plumbous band of producing be superior to the plumbous band of existing continuous casting and rolling.

Description of drawings

Fig. 1 is the structure diagram of the utility model continuous casting and rolling complete set of equipments;

Fig. 2 is the conticaster of the utility model continuous casting and rolling complete set of equipments and the structure diagram of first roller-way;

Fig. 3 is the structural representation of the pressure cooling device of the utility model continuous casting and rolling complete set of equipments;

Fig. 4 is the structural representation of the strand pinch mechanism of the utility model continuous casting and rolling complete set of equipments;

Fig. 5 is the 4th roller-way of the utility model continuous casting and rolling complete set of equipments and the structure diagram of haulage gear;

Fig. 6 is the dance roller of the utility model continuous casting and rolling complete set of equipments, the structural representation of elastic support structure;

Fig. 7 is the structural representation of the wheeled conticaster of steel band of the utility model continuous casting and rolling complete set of equipments;

Fig. 8 is the partial enlarged drawing of the a-quadrant of Fig. 7;

Fig. 9 is steel band, the backing roll of the wheeled conticaster of steel band of the utility model continuous casting and rolling complete set of equipments, the cooperation sketch map of crystallizing wheel;

Figure 10 is the radially cross-sectional schematic of backing roll of the wheeled conticaster of steel band of the utility model continuous casting and rolling complete set of equipments;

Figure 11 is that shower nozzle is provided with sketch map between the adjacent supports roller of the wheeled conticaster of steel band of the utility model continuous casting and rolling complete set of equipments;

Figure 12 is the roll sketch map of first milling train of the utility model continuous casting and rolling complete set of equipments.

The specific embodiment

The preparation grid is with the continuous casting and rolling complete set of equipments of plumbous band, and is as shown in Figure 1, comprises conticaster, milling train unit, spooler 500, cooling water system; Said conticaster adopts the wheeled conticaster 100 of steel band, and said milling train unit comprises first milling train 210 and second milling train 220, between first milling train 210 and second milling train 220, is provided with to force cooling device 400; The wheeled conticaster 100 of said steel band links to each other through first roller-way 310 with first milling train 210; Said pressure cooling device 400 links to each other through second roller-way 320 with first milling train 210; Said pressure cooling device 400 links to each other through the 3rd roller-way 330 with second milling train 220, and said second milling train 220 links to each other through the 4th roller-way 340 with spooler 500.The roll of said second milling train, 220 each passage is respectively by the buncher drive, and said spooler 500 is driven by buncher.

Said conticaster adopts the wheeled conticaster 100 of steel band, and the wheeled conticaster 100 of said steel band comprises cooling system, the access bridge 150 of casting machine frame 110, crystallizing wheel 120, steel band train, steel band without a head 130, steel band 130; Said crystallizing wheel 120 is installed on the casting machine frame 110 and axial rotation, and the external cylindrical surface of said crystallizing wheel 120 is provided with the crystallization cavity 121 of indent; Crystallizing wheel 120 is tightened and walked around to said steel band 130 through the steel band train, and through the partially crystallizable chamber 121 formation die cavities of steel band 130 sealing crystallizing wheels 120, said die cavity two ends are respectively casting gate 122 and throwing mouth 123; The lead band conveyor surface that is formed by access bridge 150 is the smooth surface that an end is higher than the other end, wherein access bridge 150 high ends be positioned at crystallizing wheel 120 tops and link to each other with first roller-way 310, a low end is adjacent with throwing mouth 123.

Said pressure cooling device 400 comprises cooling device frame 401, is installed at least one bosh 410 on the cooling device frame 401, the water inlet pipe 430 and the drainage system of bosh 410; The cell body 411 of each bosh 410 is respectively arranged with opening 412 along the top of direction of transfer both sides; Said drainage system comprises the opening 412 of both sides; Be respectively arranged with the upper limit roller 421 and lower limit roller 422 of axis horizontal in the said both-side opening 412, the charging aperture 402 and discharging opening 403 that constitute corresponding bosh 410 respectively by the upper limit roller 421 and the roll gap between the lower limit roller 422 of both sides; Be provided with screw-down structure in the bosh 410 between said charging aperture 402 and discharging opening 403, the lead band conveyor surface that is formed by the lower limit roller 422 of screw-down structure and both sides is the arch that opening makes progress.Because upper limit roller 421 is higher than lower limit roller 422, the lead band conveyor surface that is therefore formed by the upper limit roller 421 of screw-down structure and both sides is the arch that opening makes progress equally.

Adopt the wheeled conticaster 100 of steel band can guarantee the acquisition of big thickness strand, guarantee many temperature sections, big rolling than rolling enforcement.First milling train 210 utilizes afterheat in casting that the lead band is implemented to be higher than the rolling of normal temperature; Be higher than the rolling of normal temperature; Strengthen bubble, crackle and loose seam effect that when cast formed, overcome the problem that the big thickness strand of wheeled conticaster 100 continuous castings of steel band forms casting flaw easily; Big drafts helps the refinement of crystal grain, has guaranteed the improvement to lead band tissue.Through forcing the cooling of cooling device 400, second milling train 220 carries out rolling at normal temperatures to the lead band, mainly plays the effect that surface quality was controlled and improved to template.Through the rolling enforcement of many temperature sections, make the performance of the plumbous band of producing be superior to the plumbous band of existing continuous casting and rolling.

Force cooling device 400, through water inlet pipe 430 water inlets, drainage system draining, the circulation through cooling water realizes the control to water temperature; Through the control to inflow, the water level in the maintenance bosh 410 is above both-side opening 412.Because opening 412 is bigger, displacement is big, and therefore corresponding inflow is also big, through the Rapid Cycle of cooling water, can keep water temperature a lower level.The cooperation screw-down structure is spacing to the lead band; Plumbous band immerses cooling water all the time and guarantees enough heat exchange areas, therefore can guarantee the chilling to the lead band, has kept the rolling structure that first milling train 210 forms; And the normal temperature that has guaranteed second milling train 220 is rolling, and simultaneous adaptation is in continuous production.

There is the propelling movement effect in 100 pairs of strands of the wheeled conticaster of steel band, can realize the feeding of strand to first milling train 210 through the propelling movement of the wheeled conticaster 100 of steel band.Rolling tensile force mainly plays the effect of tightening and drawing plumbous band, and the THICKNESS CONTROL of plumbous band is low to the sensitiveness of tension force and mill speed, influenced by roll gap, and is therefore when tension force changes, little to the control influence of template.Further, first milling train, 210 high temperature rollings, resistance of deformation is little, and under the heavy reduction condition, first milling train, 210 each roll are strong with the interlock of plumbous band, can implement traction to the lead band through friction; Simultaneously, first milling train, 210 corresponding plumbous band applications are added tension force, therefore guaranteed carrying out continuously of first milling train, 210 operations of rolling through the plumbous horizontal component of gravity of being with between rolling.Second milling train, 220 normal temperature are rolling, and the traction through spooler 500 guarantees carrying out continuously of second milling train, 220 operations of rolling; Through the horizontal component of plumbous band gravity and the acting in conjunction of coiling tension between rolling, can guarantee the rolling requirement of normal temperature to tension force, guaranteed the 220 rolling controls of second milling train to template and surface quality.Because the position that the horizontal component of plumbous band gravity can be through opening 412 between the rolling of corresponding first milling train 210 and second milling train 220 etc. is provided with respectively; Therefore the horizontal component through plumbous band gravity between correspondence is rolled is preset, realizes the tension level that first milling train 210 requires; Preset and the coiling tension of the horizontal component through plumbous band gravity between correspondence is rolled preset realized the tension level that second milling train 220 requires, and can satisfy the demands of different of first milling train 210,220 pairs of rolling tensile forces of second milling train respectively.

Through the buffering of plumbous band in the bosh 410, can effectively avoid the generation of broken belt.After the variable quantity of tension force reached certain value, through the mill speed of second milling train 220 is adjusted, the mill speed of the coiling speed of spooler 500 and second milling train 220 was synchronous, recovered the horizontal component of plumbous band gravity between preset rolling; After the horizontal component of plumbous band gravity was replied and preset between rolling, adjustment made the mill speed of second milling train 220, the coiling speed of spooler 500 reply initial setting speed once more.

Under the certain prerequisite of drafts, mill speed difference then tension level is different; And when the mill speed of certain passage by fast when slack-off, the lead band between this passage and preceding a time possibly relax, the lead band between this passage and back a time maybe stretcher strain even broken belt; When the mill speed of certain passage when accelerating slowly, the lead band between this passage and back a time possibly relax, the lead band between this passage and preceding a time maybe stretcher strain even broken belt.Therefore, in order to guarantee rolling carrying out smoothly, the adjustment of the mill speed of second milling train 220, concrete, confirm whole mill speed through control to second milling train, 220 last passage mill speed; In last passage mill speed of adjustment; At first, regulate second milling train, 220 other passage mill speeds then and make it synchronous with last passage mill speed through the adjusting of second milling train, 220 other passage mill speeds being confirmed the tension force between total tension force and second milling train, 220 each passage.

The bosh 410 of above-mentioned pressure cold-rolling equipment 400 quantity is set, can be provided with according to actual needs.Wherein, when a plurality of bosh 410 is set, can guarantees effective control of water temperature and temperature homogeneity thereof and can realize the water temperature control of segmented, but be unfavorable for the control of tenesmus amount.When a bosh 410 is set, can be conveniently to the control of tenesmus amount, but then become key for the control of water temperature and temperature homogeneity.In instance as shown in the figure, as shown in Figure 3, only be provided with a bosh 410; In order to guarantee its control to water temperature and even water temperature property; Said water inlet pipe 430 comprises water inlet manifold 431 and water inlet arm 432, and an end mouth of pipe permutation of each arm 432 of intaking is communicated with the other end of said water inlet manifold 431 and cooling water system connectivity respectively in cell body 411 bottom surfaces, the other end of bosh 410 with an end of water inlet manifold 431; Through the injection that makes progress of water inlet arm 432; The circulation of cooling water be can strengthen, can when avoiding that plumbous belt surface caused damage, certain spray, scouring effect be played, the cooling effect that further strengthens.The cooling water of for ease bosh 410 being discharged is collected and recycle, is provided with to reclaim tank 440, and said bosh 410 is installed in to reclaim in the tank 440 and through reclaiming tank 440 and is installed on the cooling device frame 401; Be provided with and be communicated with cooling water system and the return pipe 404 that reclaims tank 440.

Above-mentioned screw-down structure can fixedly mount, and in normal productive process, plumbous band does not contact with screw-down structure, and only the deadweight through the plumbous band of tenesmus produces tension force; Also can be through active or passive governor motion installation, in normal productive process, plumbous band contacts with screw-down structure, through the tensile force generation tension force of drop plumbous deadweight of being with and screw-down structure.Therefore; Further; Said second roller-way 320 is higher than the other end with the end that first milling train 210 links to each other, and said the 3rd roller-way 330 is higher than the other end with the end that second milling train 220 links to each other, through second roller-way 320 and the 3rd roller-way 330 that is obliquely installed; Make the lead band integral body of winning between the milling train 210 and second milling train 220 be the arch that opening makes progress, increased the tension force that plumbous band deadweight produces; Can be through setting to second roller-way 320 and the 3rd roller-way 330 shapes, gradient, difference in height, the demands of different of further satisfied first milling train 210,220 pairs of rolling tensile forces of second milling train.In instance as shown in the figure; Like Fig. 1, shown in Figure 3; Both-side opening 412 is highly consistent, cell body 411 bottom surface levels, and the two ends difference in height of second roller-way 320 is consistent with the two ends difference in height of the 3rd roller-way 330; But the level inclination of second roller-way 320 obtains the horizontal component of plumbous band gravity between rolling of different correspondence first milling trains 210 and second milling train 220 greater than the level inclination of the 3rd roller-way 330 through second roller-way 320 and the 3rd roller-way 330 at different horizontal inclination angle.

Because plumbous ductility is fabulous, when calendering formation, the distortion with width is all bigger along its length; But it is rolling that existing lead is with, since rolling than little, adopt edge iron that the both sides of plumbous bandwidth direction are cut out in rolling back usually, and then control the width of plumbous band and remove the inhomogeneous part of distortion of both sides.But edge iron can not carry out width control in the operation of rolling.In addition, the casting blank section of 100 continuous castings of the wheeled conticaster of steel band is trapezoidal, and with the increase of slab thickness, the edge produces the probability increase of defective in the operation of rolling.Therefore; Further; Shown in figure 12; Be respectively arranged with the shaping groove 233 of ring-type on each topping roll 231 of said first milling train 210 and each bottom roll 232, constitute the moulding pass of rectangle and the topping roll 231 and bottom roll 232 contact matching of moulding pass both sides by the shaping groove 233 of corresponding topping roll 231 and bottom roll 232; Along direction of transfer, the corresponding moulding pass width of first milling train, 210 each passage subtracts by increasing, highly pursuing.Plumbous band in the operation of rolling, mainly distortion along its length under the restriction of moulding pass, the distortion of broadband direction is limited, can realize the control of width and guarantee in deformation process through metal to flow section be rectangle by trapezoidal correction; And through strengthening draw to the lead band to the restriction of distortion.Rolling through first milling train 210; Plumbous band is distortion along its length mainly; Length increment is big; Therefore the mill speed of second milling train 220 be higher than first milling train 210 mill speed, be higher than the casting speed of the wheeled conticaster 100 of steel band, can reduce wheeled conticaster 100 casting speeds of steel band slowly to the influence of production efficiency, enhance productivity.The roll of second milling train 220 also can be set to above-mentioned form; But second milling train, 220 each reduction in pass are little, and the manufacture difficulty of shaping groove 233 is high, is unfavorable for the control of template; Therefore in instance as shown in the figure, the roll of second milling train 220 adopts common cylindrical rolls.

Because the roll of first milling train 210 is provided with shaping groove 233; Therefore in instance as shown in the figure; As shown in Figure 1; Between first milling train 210 and second milling train, edge iron is not set, removes edge-neatening apparatus 241 before the rolling of strand burr, second milling train 220 after, be provided with edge-neatening apparatus 242 after the plumbous bandwidth direction of excision both sides inhomogeneous deformation the rolling partly and only before first milling train 210, be provided with along direction of transfer.

Because slab thickness is bigger; Cause easily during deburring and beat; Therefore, like Fig. 1, shown in Figure 4, with roll before edge-neatening apparatus 241 position adjacent be provided with strand pinch mechanism 250; Said strand pinch mechanism 250 comprise pinch mechanism frame 251, down backing roll 252, go up hold-down roller 253, side limiting roll 254, surround by backing roll 252 down, the side limiting roll 254 of going up hold-down roller 253 and both sides and constitute the lead band transfer passage that section and casting blank section adapt.Because the strand of the wheeled conticaster 100 of steel band is a trapezoidal cross-section, thus side limiting roll 254 only with trapezoidal two angular contact of going to the bottom of strand, in order to guarantee that further the left and right sides is spacing, following backing roll 252 is provided with trapezoidal groove 255.Further; In order to guarantee the correct moulding pass that gets into first milling train 210 of strand; As shown in Figure 1; Edge-neatening apparatus 241, strand pinch mechanism 250 are arranged between first roller-way 310 and first milling train 210 before said the rolling, and before rolling along direction of transfer edge-neatening apparatus 241 preceding, strand pinch mechanism 250 after, the lead band transfer passage bottom surface that is made up of backing roll 252 down is positioned at same horizontal plane with the bottom surfaces of first milling train, 210 corresponding plumbous bands.For simplified structure, when producing the different section strand, need change each roller.In order further to guarantee the feeding of strand to first milling train 210; In instance as shown in the figure; Said backing roll 252 down is provided with the synchronous control system that following backing roll 252 linear resonance surface velocities is carried out Synchronization Control according to first milling train, 210 mill speeds through motor-driven; Certainly, also can be to go up hold-down roller 253 to pass through motor-driven.

Same; In order to guarantee to roll the shear precision of back edge-neatening apparatus 242; Like Fig. 1, shown in Figure 5; Be provided with haulage gear 260 with rolling back edge-neatening apparatus 241 position adjacent, said haulage gear 260 comprises transmission belt 261, feed belt 262 down, and the said transmission belt 261 of going up is tightened through the belt pulley of correspondence respectively with following feed belt 262 and passed through motor-driven synchronous operation.Implement resilient clamp by 262 pairs of plumbous bands of last transmission belt 261 and following feed belt, to avoid the distortion of plumbous band; Simultaneously; Form sliding friction through last transmission belt 261 and following feed belt 262 with the speed difference between the plumbous band; And make that through rubbing action the lead band tension force of haulage gear 260 front and back is different; Adjusting through to haulage gear 260 speed realizes the fine setting to haulage gear 260 front and back tension force, and then satisfies the rolling needs of second milling train 220, the satisfied needs that roll back edge-neatening apparatus 242 and spooler 500 respectively.

Further; Be provided with the control system; The speed adjusting module of said second milling train, 220 each buncher, the speed adjusting module of spooler 500 bunchers all link to each other with the control system; Between first milling train 210 and second milling train 220, be provided with a tension-detecting mechanism that rolls that is used to detect corresponding plumbous band tension force that links to each other with the control system, between second milling train 220 and spooler 500, be provided with the coiling tension testing agency that is used to detect corresponding plumbous band tension force that links to each other with the control system.The control system carries out real-time dynamic control according to the signal of each tension-detecting mechanism to the mill speed of second milling train, 220 each passage; And then total tension force of the corresponding plumbous band of second milling train 220 and the lead band tension force between each passage are regulated, and the tension force of first milling train, 210 corresponding plumbous bands are carried out Coupling Control.

Further; Being provided with tension-detecting mechanism between the casting that detects corresponding plumbous band tension force with continuous being used to of control system between the conticaster and first milling train 210, between first milling train 210 and second milling train 220, be provided with the first milling train tension force micro-adjusting mechanism that links to each other with the control system.When first milling train, 210 plumbous band tension force change, can realize responding fast through the first milling train tension force micro-adjusting mechanism, and then keep 210 rolling the stablizing of first milling train; Simultaneously, through control second milling train, 220 corresponding plumbous band tension force are carried out Coupling Control, and then keep 220 rolling the stablizing of second milling train second milling train, 220 mill speeds.And when second milling train, 220 lead band tension force change, second milling train, 220 corresponding plumbous band tension force are controlled, and then keep 220 rolling the stablizing of second milling train through control to second milling train, 220 mill speeds; Simultaneously, through the quick response of the first milling train tension force micro-adjusting mechanism, first milling train, 210 corresponding plumbous band tension force are carried out Coupling Control, and then keep 210 rolling the stablizing of first milling train.The response of Tension Control is faster, and control accuracy is higher, produces more stable.The tension-detecting mechanism of above-mentioned each position can adopt mechanism arbitrarily, like regulating wheel mechanism, and realizes the detection to lead band tension force through the detection that plumbous band application is added in the radial load on the regulating wheel.

For simplified structure; For rolling a tension-detecting mechanism; Best; The said first milling train tension force micro-adjusting mechanism comprises the screw-down structure elevating mechanism of screw-down structure and adjustment screw-down structure lengthwise position, and said screw-down structure is through the fixed installation of screw-down structure elevating mechanism, and said screw-down structure elevating mechanism links to each other with the control system; Constitute by the force sensor of screw-down structure and to roll a tension-detecting mechanism.Concrete; In instance as shown in the figure, as shown in Figure 3, the screw-down structure elevating mechanism adopts tensioning hydro-cylinder 424; The controller of said tensioning hydro-cylinder 424 links to each other with the control system; Screw-down structure adopts idler roller 423, and is made up of the oil pressure sensor of tensioning hydro-cylinder 424 and rolls a tension-detecting mechanism, and the control system is the central control system of continuous casting and rolling complete set of equipments.When screw-down structure is installed for fixed installation or through passive type adaptive mechanisms such as spring driven swinging structures; Can second roller-way 320 and the 3rd roller-way 330 be arranged to shape, difference in height, dynamic mechanism that gradient is adjustable; Constitute the first milling train tension force micro-adjusting mechanism by second roller-way 320 and the 3rd roller-way 330, constitute by the displacement transducer of second roller-way 320 and the 3rd roller-way 330 and roll a tension-detecting mechanism.

For coiling tension testing agency, when adopting regulating wheel mechanism, need carry out Z-shaped or several fonts to the lead band usually and reel, and the lead band after rolling to be as thin as a wafer, the last ribbon gymnastics when initial has difficulties.Therefore operate for ease and simplified structure; Best; Said the 4th roller-way 340 comprises that one section tension force detects roller-way; Said tension force detects roller-way and comprises the elastic support structure of one group of dance roller 341, dance roller 341, the displacement transducer of dance roller 341, and each dance roller 341 is the arch that Open Side Down to be arranged and fixedly mount through elastic support structure respectively, and each displacement transducer links to each other with the control system respectively; Detect roller-way by tension force and constitute coiling tension testing agency.Above-mentioned dance roller 341 when coiling tension suddenlys change, can be realized response fast through adaptive change, with distortion and the broken belt of avoiding the tension force sudden change to cause.In instance as shown in the figure; Like Fig. 5, shown in Figure 6; Be provided with three dance rollers 341 altogether, elastic support structure comprises upper bracket 342, undersetting 343, connect the Holder for scissors 346 of upper bracket 342 and undersetting 343, be installed between upper bracket 342 and the undersetting 343 and guide 345 and guide pillar 344 that guiding cooperates, be positioned at guide 345 and act on the compression spring of guide pillar 344.

For tension-detecting mechanism between casting machine,, be difficult for adopting regulating wheel mechanism because strand is thicker.Therefore, best, said first roller-way 310 comprises tilting section 312 and horizontal segment 313, and said horizontal segment 313 1 ends link to each other with the milling train unit, the other end links to each other with the bottom of tilting section 312; Tension-detecting mechanism comprises the torque sensor of measuring roll 314, fork 315, column 316, fork 315 between said casting; Said measuring roll 314 is installed in fork 315 1 ends and is positioned at horizontal segment 313 and the top of tilting section 312 connecting places; Said fork 315 other ends and column 316 are hinged, said column 316 fixed installations.Because horizontal segment 313 is V-shaped with tilting section 312, therefore with the difference of tension force, corresponding plumbous band is different with the shape of tilting section 312 junctions at horizontal segment 313, realizes response fast through adaptive change, causes the stretcher strain of plumbous band to avoid the tension force sudden change; Simultaneously can realize detection, and, can strengthen the sensitivity that small deformation is detected through the leverage of fork 315 through the detection that plumbous belt shape is changed to tension force.In addition, overcome access bridge 150 corresponding plumbous deadweights of being with, strengthen the propelling movement effects of 100 pairs of lead bands of the wheeled conticaster of steel band, strengthen the draw of first milling train, 210 operations of rolling the lead band through the plumbous deadweights of being with of tilting section 312 correspondences.In instance as shown in the figure, like Fig. 1, shown in Figure 2, first roller-way 310 also comprises arc 311, connects tilting section 312 and access bridge 150 through arc 311, and access bridge 150 and first roller-way, 310 integral body are question mark shaped.

In order to obtain bigger drafts, just need to obtain thicker strand, and thicker strand needs further to improve the enabling capabilities of 130 pairs of strands of steel band.Therefore, further, be provided with the steel band supporting construction at said crystallizing wheel 120 corresponding die cavities radial outside partly, said steel band supporting construction is installed on the casting machine frame 110; Said steel band supporting construction comprises at least one group of supporter, said supporter comprise corresponding crystallization cavity 121 the steel band supporting surface, lay respectively at along crystallizing wheel 120 axial both sides and the respectively steel band stitching surface of 121 liang of side flange 124 of corresponding crystallization cavity of steel band supporting surface; Said steel band 130 is between supporter and crystallizing wheel 120, and crystallizing wheel 120 wheel rims 124 of 121 both sides, syncrystallization chamber, a side side of said steel band 130 corresponding crystallizing wheels 120 are close to, the opposite side side is close to the steel band stitching surface and the steel band supporting surface of supporter; Be provided with the outer cooling device of supporting construction that links to each other with the cooling water system and supporting body surface is cooled off; Be respectively arranged with cavity 141 in each supporter, said cavity 141 links to each other with the cooling water system and constitutes cooling device in the supporting construction that supporter inside is cooled off; The cooling system of said steel band 130 comprises steel band 130 is sprayed the steel band spray cooling device of cooling and the contact cooling device that is made up of the steel band supporting construction.

During production,, guaranteed the sealing of correspondence position die cavity through the steel band stitching surface of supporter, the effect of 124 pairs of steel bands 130 of crystallizing wheel 120 wheel rims; Through of the support of steel band supporting surface, guaranteed that correspondence position steel band 130 along the axial grazing of crystallizing wheel 120, has guaranteed the thickness even type of strand to steel band 130.Die cavity beyond the supporter correspondence position is because corresponding steel band 130 length are little, therefore also little along the circumferential deflection of crystallizing wheel 120; Receive the restriction of adjacent supports body, limited the random deformation such as torsional deflection of the steel band 130 of this part die cavity correspondence, therefore guaranteed the sealing and the corresponding slab thickness uniformity of this part die cavity.Can effectively guarantee cooling, thereby guarantee the cooling of supporter through cooling device, the outer cooling device of supporting construction in the supporting construction steel band 130 to supporter; The steel band 130 that die cavity beyond the supporter correspondence position is corresponding; Through the cooling of steel band spray cooling device spray; When cooling device cools off supporter outside supporting construction simultaneously; Therefore cooling water flow to this part steel band 130 or reflexes to this part steel band 130 through supporting body surface and cools off, can be in continuous casting enough cooling capacities of acquisition during greater than the lead band of existing width and thickness.

Supporter can adopt multiple structure; As: with steel band 130 the roll backing roll 140 that cooperates, and the back-up block that is slidingly matched of steel band 130, many narrow steel strips being tightened by drive roll, driven voller etc., wherein back-up block can adopt square back-up block, V-type back-up block, arc sliding shoes etc. again.The backing roll 140 that roll to cooperate contact with steel band 130 lines, and it is little to wear and tear, and steel band 130 moves more smoothness, but receives backing roll 140 circularity and the fit clearance that is rotatably assorted thereof, adjacent supports roller 140 that the influence of spacing is set, and support effect is weaker than and is slidingly matched; Simultaneously, the contact cooling effect of line contact is poor, but has the gap between the adjacent supports roller 140, the good cooling results of spray cooling.Be slidingly matched, it is unrestricted that spacing is set, and can contact by the formation face when adopting the arc sliding shoes, so support effect is good, but the wearing and tearing of back-up block, steel band 130 is big, and steel band 130 running resistances are big, even cause locking; Simultaneously, the contact position that is slidingly matched is many, close, the contact good cooling results, but the cooling water of spray be difficult for to get into the gap of 130 of back-up block and steel bands, and therefore the cooling effect of spray cooling is relatively poor.Many narrow steel strips by drive roll, driven voller are tightened can provide good supporting through narrow steel strip, and narrow steel strip and steel band 130 relative motions, and it is little therefore to rub, wear and tear; Simultaneously, can spray cooling to steel band 130, therefore combine the advantage of backing roll 140 and back-up block through the gap between the adjacent narrow steel band.But narrow steel strip mechanism need be provided with the drive system of drive roll, is provided with, safeguards complicacy, as a kind of the simplest drive system, can drive roll and crystallizing wheel 120 be constituted planetary gears through gear ring is set, and realizes the rotation of drive roll.

In instance as shown in the figure; Like Fig. 7, Fig. 8, shown in Figure 9; Shown in; Said supporter adopts the backing roll 140 that rolls and cooperate with steel band 130; It is axial that each backing roll 140 axially all is parallel to crystallizing wheel 120, backing roll 140 comprise cavity 141 in the roll shaft 147, roll body 146 at roll body 146 and roll body 146 two ends, by two ends roll shaft 147 insert cavities 141 inlet pipeline 148, be positioned at the pipe joint of termination, inlet pipeline 148 outside, pipe joint links to each other with the cooling water system with pipeline through swivel joint.Each backing roll 140 is installed on the casting machine frame 110 through elastic compression mechanism 170 respectively, said elastic compression mechanism 170 comprise arc leaf spring 171, regulate support; Said adjusting support comprises fixed support 172, travel(l)ing rest 173, threaded adjusting mechanism 174; Said fixed support 172 radially slides guiding with travel(l)ing rest 173 along crystallizing wheel 120 and cooperates, threaded adjusting mechanism 174 is with fixed support 172 axial restraints and be rotatably assorted, with travel(l)ing rest 173 threaded engagement; Said fixed support 172 is fixedly mounted on the casting machine frame 110, and 140 two of said backing rolls are a pair of and be installed in leaf spring 171 two ends through bearing 149 respectively, and leaf spring 171 middle parts are fixed on the travel(l)ing rest 173 through clamp 176 and U-bolt 175.

Above-mentioned steel band spray cooling device, can adopt the two kinds of following result formats and the combination of following two kinds of forms: said supporter is provided with at interval, and said steel band spray cooling device comprises and is arranged on the steel band cooling spray 131 in the gap between the adjacent supports body; Perhaps, said supporter is provided with the cooling water spray orifice 142 of cavity 141 in one group of connected component support body outside and the supporter, and said steel band spray cooling device comprises the cooling water spray orifice 142 of injection direction towards steel band 130.

In instance as shown in the figure, like Fig. 9, shown in Figure 10, for simplified structure, said backing roll 140 is provided with one group of cooling water spray orifice 142 that is communicated with cavities 141 in backing roll 140 outsides and the backing roll 140; The external cylindrical surface of said backing roll 140 is provided with the ring-shaped groove 143 of one group of coaxial arrangement, and the aperture in each cooling water spray orifice 142 outside all is positioned at ring-shaped groove 143; Said steel band spray cooling device comprises the cooling water spray orifice 142 of injection direction towards steel band 130; The outer cooling device of said supporting construction comprises the cooling water spray orifice 142 of injection direction towards adjacent supports roller 140; Guarantee the ejection, atomizing of cooling waters and along the flowing of steel band 130 through ring-shaped groove 143, thereby strengthen cooling effect.Simultaneously; Like Fig. 7, Fig. 8, shown in Figure 11; Be provided with the arc spray pipeline 101 that is fixed on the casting machine frame 110; Be provided with along crystallizing wheel 120 and axially insert steel band cooling spray 131, the backing roll cooling spray 145 in the gap between the adjacent supports roller 140, each steel band cooling spray 131, backing roll cooling spray 145 all are communicated with arc spray pipeline 101 and are fixing through arc spray pipeline 101.

The wheeled conticaster 100 of existing steel band receives the restriction of upper belt-wheel 102, and cast tundish and throwing mouth 123 are positioned at the same side of crystallizing wheel 120; Simultaneously; Casting sloping platform for fear of with casting tundish and tundish produces interference; Common first roller-way 310 is positioned at the opposite side of crystallizing wheel 120 relative tundish and is positioned at crystallizing wheel 120 tops; The arc access bridge 150 that is extended to crystallizing wheel 120 tops first roller-way, 310 starting point ends by near the bendings throwing mouth 123 is set between first roller-way 310 and the throwing mouth 123, the strand between the throwing mouth 123 and first roller-way 310, the propelling movement through crystallizing wheel 120 moves upward.And the propelling movement of crystallizing

wheel

120 and 130 pairs of strands of steel band; Mainly be owing to the viscous effect between strand syncrystallization wheel 120, the steel band 130; With the increase of casting blank section, the amplification of propelling movement effect is less than the amplification of the deadweight of the lead band between the throwing mouth 123 and first roller-way 310.

Therefore; In order to guarantee the lead band tension state between the wheeled conticaster 100 of steel band and first milling train 210; Further; By crossing crystallizing wheel 120 axial fore-and-aft planes crystallizing wheel 120 is divided into first area and second area, said casting gate 122 is positioned at the top of crystallizing wheel 120 first areas, and said throwing mouth 123 is positioned at the bottom of crystallizing wheel 120 second areas; Said milling train unit is positioned at the outside of first area, and said first roller-way 310 extends to crystallizing wheel 120 tops by the outside of crystallizing wheel 120 first areas; Be provided with the slab supporting mechanism, said slab supporting mechanism is by oblique throwing mouth 123 positions that extend below to crystallizing wheel 120, the outside of crystallizing wheel 120 second areas, and said access bridge 150 low ends are positioned at the top of slab supporting mechanism away from crystallizing wheel 120 1 ends.Through the setting of slab supporting mechanism, make access bridge 150 throwing mouths 123 1 ends move outward, reduce the gradient of access bridge 150, strengthened the enabling capabilities of access bridge 150 to strand on it; Simultaneously, between throwing mouth 123 and access bridge 150, form good supporting through the slab supporting mechanism.In instance as shown in the figure, as shown in Figure 7, the separation of strand for ease is provided with first splitter 161 that separates strand and crystallizing wheel 120, second splitter 162 that separates strand and steel band 130, shown in second splitter 162 be arranged on down belt wheel 103 tops; For simplified structure, constitute the slab supporting mechanism by the steel band 130 between second splitter 162 and crystallizing wheel 120 and the following belt wheel 103.

The road number of times of first milling train 210 and second milling train 220 can require to be provided with according to reality; In instance as shown in the figure; First milling train 210 comprises that two passages, second milling train 220 comprise five passages; Slab thickness is 30mm, and rolling the plumbous tape thickness in back is 1.5mm, and spooler adopts existing spooler.

Claims

1. the preparation grid is with the continuous casting and rolling complete set of equipments of plumbous band; Comprise conticaster, milling train unit, spooler (500), cooling water system; Said conticaster links to each other through first roller-way (310) with the milling train unit, and said milling train unit links to each other through the 4th roller-way (340) with spooler (500); It is characterized in that:

Said conticaster adopts the wheeled conticaster of steel band (100), and the wheeled conticaster of said steel band (100) comprises cooling system, the access bridge (150) of casting machine frame (110), crystallizing wheel (120), steel band train, steel band without a head (130), steel band (130); Said crystallizing wheel (120) is installed in casting machine frame (110) and goes up and axial rotation, and the external cylindrical surface of said crystallizing wheel (120) is provided with the crystallization cavity (121) of indent; Crystallizing wheel (120) is tightened and walked around to said steel band (130) through the steel band train, and through partially crystallizable chamber (121) the formation die cavity of steel band (130) sealing crystallizing wheel (120), said die cavity two ends are respectively casting gate (122) and throwing mouth (123); The lead band conveyor surface that is formed by access bridge (150) is the smooth surface that an end is higher than the other end, the end that wherein access bridge (150) is high be positioned at crystallizing wheel (120) top and link to each other with first roller-way (310), a low end is adjacent with throwing mouth (123);

Said milling train unit comprises first milling train (210) that links to each other with first roller-way (310) and second milling train (220) that links to each other with the 4th roller-way (340); The roll of each passage of said second milling train (220) is respectively by the buncher drive, and said spooler (500) is driven by buncher; Between first milling train (210) and second milling train (220), be provided with and force cooling device (400); Said pressure cooling device (400) links to each other through second roller-way (320) with first milling train (210), and said pressure cooling device (400) links to each other through the 3rd roller-way (330) with second milling train (220);

Said pressure cooling device (400) comprises cooling device frame (401), is installed at least one bosh (410) on the cooling device frame (401), the water inlet pipe (430) and the drainage system of bosh (410); The cell body (411) of each bosh (410) is respectively arranged with opening (412) along the top of direction of transfer both sides; Said drainage system comprises the opening (412) of both sides; Be respectively arranged with the upper limit roller (421) and the lower limit roller (422) of axis horizontal in the said both-side opening (412), the charging aperture (402) and the discharging opening (403) that constitute corresponding bosh (410) respectively by the upper limit roller (421) and the roll gap between the lower limit roller (422) of both sides; Be provided with screw-down structure in the bosh (410) between said charging aperture (402) and discharging opening (403), the lead band conveyor surface that is formed by the lower limit roller (422) of screw-down structure and both sides is the arch that opening makes progress.

2. preparation grid as claimed in claim 1 is with the continuous casting and rolling complete set of equipments of plumbous band; It is characterized in that: the shaping groove (233) that is respectively arranged with ring-type on each topping roll (231) of said first milling train (210) and each bottom roll (232); Constitute the moulding pass of rectangle and the topping roll (231) of moulding pass both sides and bottom roll (232) contact matching by the shaping groove (233) of corresponding topping roll (231) and bottom roll (232); Along direction of transfer, the corresponding moulding pass width of each passage of first milling train (210) subtracts by increasing, highly pursuing.

3. preparation grid as claimed in claim 1 is with the continuous casting and rolling complete set of equipments of plumbous band; It is characterized in that: be provided with the control system; The speed adjusting module of the speed adjusting module of each buncher of said second milling train (220), spooler (500) buncher all links to each other with the control system; Between first milling train (210) and second milling train (220), be provided with a tension-detecting mechanism that rolls that is used to detect corresponding plumbous band tension force that links to each other with the control system, between second milling train (220) and spooler (500), be provided with the coiling tension testing agency that is used to detect corresponding plumbous band tension force that links to each other with the control system.

4. preparation grid as claimed in claim 3 is with the continuous casting and rolling complete set of equipments of plumbous band; It is characterized in that:, between first milling train (210) and second milling train (220), be provided with the first milling train tension force micro-adjusting mechanism that links to each other with the control system being provided with tension-detecting mechanism between the casting that detects corresponding plumbous band tension force with continuous being used to of control system between conticaster and first milling train (210).

5. preparation grid as claimed in claim 4 is with the continuous casting and rolling complete set of equipments of plumbous band; It is characterized in that: the said first milling train tension force micro-adjusting mechanism comprises the screw-down structure elevating mechanism of screw-down structure and adjustment screw-down structure lengthwise position; Said screw-down structure is through the fixed installation of screw-down structure elevating mechanism, and said screw-down structure elevating mechanism links to each other with the control system; Constitute by the force sensor of screw-down structure and to roll a tension-detecting mechanism.

6. preparation grid as claimed in claim 4 is with the continuous casting and rolling complete set of equipments of plumbous band; It is characterized in that: said the 4th roller-way (340) comprises that one section tension force detects roller-way; Said tension force detects roller-way and comprises the elastic support structure of one group of dance roller (341), dance roller (341), the displacement transducer of dance roller (341); Each dance roller (341) is the arch that Open Side Down to be arranged and fixedly mounts through elastic support structure respectively, and each displacement transducer links to each other with the control system respectively; Detect roller-way by tension force and constitute coiling tension testing agency.

7. preparation grid as claimed in claim 4 is with the continuous casting and rolling complete set of equipments of plumbous band; It is characterized in that: said first roller-way (310) comprises tilting section (312) and horizontal segment (313), and said horizontal segment (313) one ends link to each other with the milling train unit, the other end links to each other with the bottom of tilting section (312); Tension-detecting mechanism comprises the torque sensor of measuring roll (314), fork (315), column (316), fork (315) between said casting; Said measuring roll (314) is installed in fork (315) one ends and is positioned at horizontal segment (313) and the top of tilting section (312) connecting place; Said fork (315) other end and column (316) are hinged, said column (316) fixed installation.

8. preparation grid as claimed in claim 1 is characterized in that with the continuous casting and rolling complete set of equipments of plumbous band:

Radial outside in the corresponding die cavity part of said crystallizing wheel (120) is provided with the steel band supporting construction, and said steel band supporting construction is installed on the casting machine frame (110); Said steel band supporting construction comprises at least one group of supporter, said supporter comprise corresponding crystallization cavity (121) the steel band supporting surface, lay respectively at the steel band supporting surface along crystallizing wheel (120) the axially both sides and the steel band stitching surface of corresponding crystallization cavity (121) two side flange (124) respectively; Said steel band (130) is positioned between supporter and the crystallizing wheel (120), and crystallizing wheel (120) wheel rim (124) of the both sides, syncrystallization chamber, a side side (121) of the corresponding crystallizing wheel of said steel band (130) (120) is close to, the opposite side side is close to the steel band stitching surface and the steel band supporting surface of supporter;

Be provided with the outer cooling device of supporting construction that links to each other with the cooling water system and supporting body surface is cooled off; Be respectively arranged with cavity (141) in each supporter, said cavity (141) links to each other with the cooling water system and constitutes cooling device in the supporting construction that supporter inside is cooled off; The cooling system of said steel band (130) comprises steel band (130) is sprayed the steel band spray cooling device of cooling and the contact cooling device that is made up of the steel band supporting construction.

9. preparation grid as claimed in claim 8 is with the continuous casting and rolling complete set of equipments of plumbous band; It is characterized in that: said supporter adopts the backing roll (140) that rolls and cooperate with steel band (130), and said backing roll (140) is provided with one group of cooling water spray orifice (142) that is communicated with backing roll (140) outside and the interior cavity of backing roll (140) (141); The external cylindrical surface of said backing roll (140) is provided with the ring-shaped groove (143) of one group of coaxial arrangement, and the aperture in each cooling water spray orifice (142) outside all is positioned at ring-shaped groove (143); Said steel band spray cooling device comprises the cooling water spray orifice (142) of injection direction towards steel band (130), and the outer cooling device of said supporting construction comprises the cooling water spray orifice (142) of injection direction towards adjacent supports roller (140).

10. the continuous casting and rolling complete set of equipments of being with lead like claim 1,2 or 8 described preparation grids; It is characterized in that: crystallizing wheel (120) is divided into first area and second area by crossing the axial fore-and-aft plane of crystallizing wheel (120); Said casting gate (122) is positioned at the top of crystallizing wheel (120) first area; Said throwing mouth (123) is positioned at the bottom of crystallizing wheel (120) second area; Said milling train unit is positioned at the outside of first area, and said first roller-way (310) extends to crystallizing wheel (120) top by the outside of crystallizing wheel (120) first area; Be provided with the slab supporting mechanism; Said slab supporting mechanism is by oblique throwing mouth (123) position that extends below to crystallizing wheel (120), the outside of crystallizing wheel (120) second area, and the end that said access bridge (150) is low is positioned at the top of slab supporting mechanism away from crystallizing wheel (120) one ends.

11. preparation grid as claimed in claim 3 is with the continuous casting and rolling complete set of equipments of plumbous band; It is characterized in that: crystallizing wheel (120) is divided into first area and second area by crossing the axial fore-and-aft plane of crystallizing wheel (120); Said casting gate (122) is positioned at the top of crystallizing wheel (120) first area; Said throwing mouth (123) is positioned at the bottom of crystallizing wheel (120) second area; Said milling train unit is positioned at the outside of first area, and said first roller-way (310) extends to crystallizing wheel (120) top by the outside of crystallizing wheel (120) first area; Be provided with the slab supporting mechanism; Said slab supporting mechanism is by oblique throwing mouth (123) position that extends below to crystallizing wheel (120), the outside of crystallizing wheel (120) second area, and the end that said access bridge (150) is low is positioned at the top of slab supporting mechanism away from crystallizing wheel (120) one ends.