CN212216611U

CN212216611U - Strip steel descaling production line

Info

Publication number: CN212216611U
Application number: CN202020797908.0U
Authority: CN
Inventors: 马丽坤; 武其俭; 杨力; 王松; 耿明山; 轧楠; 张华�
Original assignee: Capital Engineering & Research Inc Ltd; CERI Technology Co Ltd
Current assignee: Capital Engineering & Research Inc Ltd; CERI Technology Co Ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-25
Anticipated expiration: 2030-05-14

Abstract

The utility model provides a belted steel descaling production line, this belted steel descaling production line includes: the uncoiler, the straight head straightener, the sand-throwing descaler, the strip steel cleaning device, the drying equipment and the coiler are sequentially arranged along the advancing direction of the strip steel; flying shears and a slitting machine are arranged between the drying equipment and the coiling machine, and the flying shears and the slitting machine are arranged in the front and back direction of the strip steel advancing direction. Through the utility model discloses to after carrying out the surface descaling to thick specification belted steel and handling, can make into required width or required length with it, be favorable to reducing to open a book and batch the operation, reduce production process, energy saving medium.

Description

Strip steel descaling production line

Technical Field

The utility model relates to a technical field of rolling belted steel especially relates to a belted steel descaling production line.

Background

The hot rolled coil needs to be subjected to surface descaling treatment before entering a cold rolling mill for rolling or direct galvanization. The chemical pickling process is a very mature surface descaling treatment method, but during pickling, the emission of acid mist and waste acid causes pollution and damage to the environment. To ensure the emission to reach the standard (meet less than 15mg/Nm HCL)³) The construction of a chemical pickling line requires the matching of corresponding acid regeneration and a wastewater treatment plant, and even if the acid mist is discharged, the acid mist is still discharged; acid regeneration itself also emits large amounts of waste gases. Not only the environment is damaged, but also the life of people around is influenced; it also has severe corrosion to the plant. Other surface descaling methods also include: high-pressure water descaling, sand blasting descaling, hydrogen reduction method derusting and laser derusting; these surface descaling methods have the advantage of being more environmentally friendly.

The thick-specification strip steel generally refers to strip steel with the thickness of 4-16 mm, and the thick-specification strip steel is usually pickled in a single-block manner, so that the yield is low and the environmental pollution is serious; in addition, for thick gauge strip steel, a long pickling time is required, which results in the need to configure a large number of acid tanks to meet production speed and yield.

The thick gauge strip may be surface descaled using the sand blasting descaling process shown in FIG. 1a or the sand blasting descaling process shown in FIG. 1 b.

Typically, thick gauge strip is coiled after surface treatment for convenient storage and transport to downstream customers. In some cases, downstream customers require strip steel of different widths or different lengths, at which point the coiled strip is uncoiled and slit again, adding to the production process. The difficulty of uncoiling and coiling thick strip steel is high, and more energy media need to be consumed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a belted steel descaling production line to after carrying out the surface descaling to thick specification belted steel, can make into required width or required length with it, be favorable to reducing to open a book and batch the operation, reduce production processes, energy saving medium.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a strip steel descaling production line, include: the uncoiler, the straight head straightener, the sand-throwing descaler, the strip steel cleaning device, the drying equipment and the coiler are sequentially arranged along the advancing direction of the strip steel; flying shears and a slitting machine are arranged between the drying equipment and the coiling machine, and the flying shears and the slitting machine are arranged in the front and back direction of the strip steel advancing direction.

In a preferred embodiment, the slitter is located between the flying shear and the coiler.

In a preferred embodiment, a conveying belt and a stacking platform are arranged behind the flying shears, and the conveying belt is used for conveying the strip steel transversely cut by the flying shears to the stacking platform.

In a preferred embodiment, a loop guide plate table is arranged behind the slitting machine.

In a preferred embodiment, the coiler is preceded by an oiler.

In a preferred embodiment, the oiler is preceded by a double nip roll.

In a preferred embodiment, a multi-roll leveler is arranged between the sand-throwing descaling machine and the straight-head leveler, the multi-roll leveler comprises an upper leveling roll group and a lower leveling roll group which are arranged up and down, and the strip steel is repeatedly bent in the process of passing through the space between the upper leveling roll group and the lower leveling roll group; the upper leveling roller group comprises at least four upper leveling working rollers which are sequentially arranged along the advancing direction of the strip steel; the lower leveling roller group comprises at least five lower leveling working rollers, the at least five lower leveling working rollers are sequentially arranged along the advancing direction of the strip steel and are staggered with the at least four upper leveling working rollers.

In a preferred embodiment, two upper support roller sets are arranged above each upper leveling working roller, and two lower support roller sets are arranged below each lower leveling working roller.

In a preferred embodiment, the upper leveling roller group is connected with a pressing cylinder, and the pressing cylinder is used for driving the upper leveling roller group to move up and down above the lower leveling roller group.

In a preferred embodiment, a pre-brushing device is arranged between the multi-roll leveler and the sand-blasting descaler, and the pre-brushing device comprises at least one upper brushing roll and at least one lower brushing roll, and the steel strip can pass through the space between the upper brushing roll and the lower brushing roll.

In a preferred embodiment, a belt raising head device is arranged in front of the multi-roll leveler and comprises a lower guide plate, a head raising plate, an upper pressing plate, a pressing cylinder and a head raising cylinder, wherein the lower guide plate and the head raising plate are sequentially distributed along the advancing direction of the strip steel; the pressing cylinder is connected with the upper pressing plate and can drive the upper pressing plate to move towards the lower guide plate so as to press the strip steel on the lower guide plate; the warping head cylinder is connected with the warping head plate and can drive the warping head plate to move upwards, so that strip steel on the warping head plate is lifted upwards.

In a preferred embodiment, a head cutting shear is arranged between the tape warping head device and the straight head straightening machine.

The utility model discloses a characteristics and advantage are:

the belted steel is in the utility model provides a when descaling in the belted steel descaling production line, belted steel is in proper order through decoiler, straight-end straightener, throwing sand descaling machine, belted steel belt cleaning device and drying equipment. The strip steel is subjected to surface descaling treatment in a sand throwing descaling machine, a strip steel cleaning device and drying equipment, and is cleaned and dried.

In the strip steel descaling production line, strip steel can enter a flying shear for transverse cutting after passing through a drying device so as to realize cut-to-length or tail cutting and obtain the strip steel with required length.

The strip steel can also enter a strip separator to be separated to obtain the strip steel with the required width, and the separated strip steel can enter a coiling machine to be coiled.

The strip steel can also pass through a flying shear and a slitting machine and enter a coiling machine for coiling.

The strip steel descaling production line has the functions of transversely cutting and longitudinally cutting strips, can make strip steel after surface descaling into required width or required length, produces steel coils, fixed-length steel plates or strip steel coils according to user requirements, is various in product, is favorable for reducing uncoiling and coiling operations, reduces production procedures, and particularly has a good energy-saving medium effect on thick-specification strip steel.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1a is a schematic representation of the steps of a process for sand blasting and descaling;

FIG. 1b is a schematic representation of the steps of another sand blasting and descaling process;

FIG. 2 is a schematic view of a strip steel descaling production line provided by the present invention;

FIG. 3a is a schematic view of a multi-roll leveler in the strip descaling line of FIG. 2;

FIG. 3b is a schematic view of the multi-roll leveler shown in FIG. 3 a;

FIG. 3c is a schematic front view of the multi-roll leveler shown in FIG. 3 a;

FIG. 3d is a side view of the multi-roll leveler shown in FIG. 3a with a simplified schematic configuration;

FIG. 4 is a schematic structural diagram of a tape raising head device in the strip steel descaling production line shown in FIG. 2;

FIG. 5a is a front view of the strip steel cleaning device provided by the present invention;

FIG. 5b is a top view of the strip cleaning apparatus shown in FIG. 5 a;

FIG. 5c is a schematic view showing a brush roll mechanism in the strip steel cleaning apparatus shown in FIG. 5 a;

FIG. 5d is an enlarged view of a portion of the scrubber in the strip cleaning apparatus shown in FIG. 5 b;

FIG. 5e is an enlarged view of a portion of the scrubber in the strip cleaning apparatus shown in FIG. 5 a;

FIG. 6 is a step diagram of the descaling method for the strip steel descaling production line provided by the present invention.

The reference numbers illustrate:

1A, an uncoiler; 2A, turning a pinch roll; 3A, straightening the machine with straight head; 4A, cutting the head; 100A, the advancing direction of the strip steel;

5A, a tape head warping device; 51A, a lower guide plate; 52A, a nose piece; 53A, an upper pressure plate; 531A, a turret; 54A, a pressing cylinder; 55A, a head raising cylinder;

6A, a multi-roller leveling machine;

61A, an upper leveling roller set; 611A, an upper leveling working roll; 612A, an upper supporting roller group;

62A, a lower leveling roller set; 621A, a lower leveling work roll; 622A, a lower support roller set;

63A, pressing a cylinder; 641A, a motor; 642A, a speed reducer; 65A, a frame;

7A, a pre-brushing device; 71A, an upper brushing roller; 72A, a lower brushing roller;

8A, a sand throwing and descaling machine; 9A, a strip steel cleaning device; 10A, drying equipment; 11A, a surface inspection tester;

12A, pinch rolls; 13A, flying shears; 14A, a conveying belt; 15A, a material stacking platform;

16A, correcting pinch rolls; 17A, a slitting machine; 18A, a loop guide plate table; 181A, deviation rectifying looping guide plate table;

19A, an oiling machine; 20A, a coiling machine; 21A, double pinch rolls; 22A, a steering pinch roll;

100. a box body; 11. a strip steel feed inlet; 12. a strip steel discharge port; 13. the direction of feed;

200. a brush roll mechanism; 201. a first brush roller mechanism; 202. a second brush roller mechanism;

21. an upper brush roll; 211. brushing a sand rod; 2111. a connecting rod; 212. collecting tank;

22. a lower brush roll; 221. brushing a sand rod;

23. a brush roll drive mechanism; 231. a brush roll motor; 24. a first cylinder; 25. a lifting mechanism; 251. a screw elevator; 26. a synchronizing shaft;

300. a first liquid spraying mechanism; 31. a first upper spray pipe; 32. a first lower spray pipe;

400. a second liquid spraying mechanism; 41. a second upper spray pipe; 42. a second lower spray pipe;

500. scrubbing and brushing; 51. a bristle group; 52. a second cylinder;

600. a wringing roller mechanism; 61. an upper wringing roller; 62. a lower wringing roller; 63. a wringing drive mechanism; 64. a third cylinder;

71. a carrier roller; 72. a guide plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The cross-cutting unit performs cross-cutting and the slitting unit performs slitting, both typically in the final zone after cold rolling. The speed of the transverse cutting unit is usually high, and the transverse cutting unit mainly works on thin plates; the longitudinal cutting machine set can operate on both thin plates and thick plates, and the speed of the machine set is relatively low. Normally, the longitudinal cutting and the transverse cutting are completed by two independent machine sets, and the yield of the transverse cutting machine set is reduced by combining the transverse cutting machine set with the longitudinal cutting machine set; if only a cross cut is considered, then the investment for subsequent slitting is increased.

At present, three independent units are adopted for descaling unit, longitudinal cutting and transverse cutting, and thick plates are usually stacked in a transverse cutting mode or are subjected to longitudinal cutting and splitting and then enter the next procedure or are directly sold as finished products. For hot rolled plates, strip steel with relatively thick thickness and relatively high strength needs to be rolled after being stripped, and iron scales need to be removed before rolling. The production speed of the sand-throwing descaling unit is matched with the speed of the longitudinal cutting unit, and the difficulty of matching the production speed of the sand-throwing descaling unit with the speed of the transverse cutting unit is high.

In view of the above situation, the utility model provides a belted steel descaling production line and belted steel descaling method to the belted steel that thickness is than thicker, intensity is higher again.

Example one

The utility model provides a belted steel descaling production line, as shown in figure 2, this belted steel descaling production line includes: the device comprises an uncoiler 1A, a straight head straightener 3A, a sand and scale throwing machine 8A, a strip steel cleaning device 9A, a drying device 10A and a coiler 20A which are sequentially arranged along the strip steel advancing direction 100A; a flying shear 13A and a slitting machine 17A are arranged between the drying device 10A and the coiler 20A, and the flying shear 13A and the slitting machine 17A are arranged in the front and back direction along the strip steel advancing direction 100A.

When the strip steel is descaled in the strip steel descaling production line, the strip steel sequentially passes through an uncoiler 1A, a straight head straightener 3A, a sand throwing and descaling machine 8A, a strip steel cleaning device 9A and a drying device 10A. The strip steel is subjected to surface descaling treatment in a sand throwing descaler 8A, a strip steel cleaning device 9A and a drying apparatus 10A, and is subjected to cleaning and drying treatment.

In the strip steel descaling production line, strip steel can enter a flying shear 13A for transverse cutting after passing through a drying device 10A so as to realize fixed-length cutting or tail cutting and obtain the strip steel with required length. The strip steel can also enter a strip separator 17A for separation to obtain the strip steel with the required width, and the strip steel after separation can enter a coiling machine 20A for coiling. The strip steel can also pass through a flying shear 13A and a slitting machine 17A and enter a coiling machine 20A for coiling.

This belted steel descaling production line possesses the crosscut and the slitting function of strip, can make into required width or required length with belted steel after the surface descaling, produces coil of strip, scale steel board or slitting coil of strip according to user's demand, and the product is various, is favorable to reducing to open a book and batches the operation, reduces production processes, especially to thick specification belted steel, has the effect of better energy saving medium to can reduce area, practice thrift investment cost and manufacturing cost. The strip steel descaling production line has great advantages on steel types which are not ideal for conventional pickling treatment, such as automobile beam steel, high-quality steel, spring steel and the like.

Further, the arrangement order of the slitter 17A and the flying shear 13A is optimized: the slitting machine 17A is positioned between the flying shears 13A and the coiling machine 20A, namely the flying shears 13A and the slitting machine 17A are sequentially distributed along the strip steel advancing direction 100A, so that the strip steel after slitting can be coiled conveniently. When crosscutting is not needed, the strip steel can pass through the flying shear 13A and move to the slitting machine 17A. When crosscutting is not required and slitting is not required, the strip can pass through the flying shear 13A and the slitting machine 17A.

As shown in fig. 2, a conveyor belt 14A and a material stacking table 15A are provided behind the flying shear 13A, and the conveyor belt 14A is used to convey the strip transversely cut by the flying shear 13A to the material stacking table 15A. The flying shears 13A, the conveying belt 14A and the stacking platform 15A are sequentially distributed along the strip steel advancing direction 100A, and the strip steel after transverse cutting enters the stacking platform 15A through the conveying belt 14A for stacking. Preferably, a pinch roll 12A is arranged in front of the flying shear 13A, and the strip enters the flying shear 13A after passing through the pinch roll 12A.

As shown in fig. 2, a loop guide table 18A is provided behind the slitting machine 17A, and the slit strip passes through the closed loop guide table 18A and moves to a coiler 20A for coiling. Preferably, a deviation rectifying pinch roll 16A is arranged in front of the strip splitting machine 17A, the deviation of strip steel can be rectified, the strip steel in thick specification can be split and rolled up in a flush mode, the strip steel rectified by the deviation rectifying pinch roll 16A is fed into the strip splitting machine 17A to be split, the strip steel after being split enters an isolation disc through a closed loop guide plate table 18A and continues to operate, the strip steel enters a coiler jaw through a steering pinch roll 22A and a strip threading guide plate to clamp a strip head, and then the loop guide plate table 18A is opened to form a small loop, so that the strip steel after being split can normally operate. Furthermore, a deviation rectifying loop guide plate table 181A is arranged in front of the deviation rectifying pinch roll 16A to improve the deviation rectifying effect and be beneficial to ensuring the stability of strip splitting processing of the strip steel in the strip splitting machine 17A; specifically, the deviation rectification loop guide plate table 181A may be identical in structure to the loop guide plate table 18A.

In one embodiment of the present invention, an oiling machine 19A is provided before the coiler 20A to perform oiling treatment on the strip steel before coiling. Further, a double pinch roll 21A is arranged in front of the oiling machine 19A, and the double pinch roll 21A provides back tension for the coiling machine 20A, so that the tension coiling effect of the tail of the strip after the strip leaves the coiling machine 1A is guaranteed.

In order to ensure the descaling effect on thick strip steel, in one embodiment of the present invention, a multi-roll leveler 6A is disposed between the sand blasting descaling machine 8A and the straight-head leveler 3A, as shown in fig. 3A-3 d, the multi-roll leveler 6A includes an upper leveling roll set 61A and a lower leveling roll set 62A disposed up and down, and the strip steel is repeatedly bent in the process of passing between the upper leveling roll set 61A and the lower leveling roll set 62A; the upper leveling roller group 61A includes at least four upper leveling work rollers 611A, and the at least four upper leveling work rollers 611A are sequentially arranged along the strip steel advancing direction 100A; the lower leveling roller group 62A includes at least five lower leveling work rollers 621A, and the at least five lower leveling work rollers 621A are sequentially arranged along the strip advancing direction 100A and are staggered with the at least four upper leveling work rollers 611A. As shown in fig. 3d, the multi-roll leveler 6A includes 2 ac inverter motors 641A connected to the upper leveling roll group 61A and the lower leveling roll group 62A through speed reducers 642A, respectively, to drive the upper leveling work rolls 611A and the lower leveling work rolls 621A to rotate, respectively.

Especially for thick strip steel, a multi-roll leveler 6A is arranged at the entrance of the unit, and the shape of the strip steel is corrected; and secondly, the device is beneficial to mechanical descaling, improves the speed of sand throwing and descaling, is consistent with the inlet equipment of the transverse cutting unit, and is beneficial to enabling the speeds of descaling treatment, transverse cutting treatment and strip separation treatment to be more matched in the production line.

The multi-roll leveler 6A can repeatedly bend the strip steel to perform the functions of descaling and descaling, and also has the function of correcting and improving the plate shape. After the strip steel passes through the multi-roller leveler 6A, part of the iron oxide scale becomes loose, so that the subsequent removal is easier, and the descaling efficiency is improved. The multi-roll leveler 6A is more suitable for mechanical descaling of thick band steel, and has better descaling effect and higher efficiency on the thick band steel.

Further, two upper support roller groups 612A are provided above each upper leveling work roller 611A, and two lower support roller groups 622A are provided below each lower leveling work roller 621A. Each of the upper support roller groups 612A includes a plurality of upper support rollers provided in parallel with the upper leveling work rollers 611A, the roller surfaces of the upper leveling work rollers 611A are in rolling engagement with the roller surfaces of the upper support rollers, and the plurality of upper support rollers are sequentially arranged along the length direction of the upper leveling work rollers 611A. Each lower support roller group 622A includes a plurality of lower support rollers provided in parallel to the lower leveling work rollers 621A, the roller surfaces of the lower leveling work rollers 621A are in rolling engagement with the roller surfaces of the lower support rollers, and the plurality of lower support rollers are sequentially arranged in the length direction of the lower leveling work rollers 621A. The upper supporting roller group 612A and the lower supporting roller group 622A are beneficial to transmitting pressing force to the upper leveling working roller 611A and the lower leveling working roller 621A, so that the stress distribution of the upper leveling working roller 611A and the stress distribution of the lower leveling working roller 621A are more uniform, and the effects of descaling and plate shape correction of thick-specification strip steel are favorably guaranteed.

As shown in fig. 3b, the multi-roll leveler 6A includes a frame 65A, and an upper leveling roll group 61A and a lower leveling roll group 62A are mounted to the frame 65A. Preferably, the multi-roll leveler 6A further comprises a roll changing device, the roll changing device comprises a roll changing trolley and a spindle bracket, the upper leveling roll set 61A and the lower leveling roll set 62A are integrally drawn out by operating the roll changing trolley on the operating side during roll changing, and the spindle bracket is arranged on the transmission side to drag the universal spindle.

As shown in fig. 3b and 3c, the upper leveling roller set 61A is connected with a pressing cylinder 63A, and the pressing cylinder 63A is used for driving the upper leveling roller set 61A to move up and down above the lower leveling roller set 62A so as to adjust the roller gap, thereby completing the functions of mechanical descaling and plate shape correction. In some embodiments, 4 hold-down cylinders 63A are connected to the upper leveling roller set 61A, and the 4 hold-down cylinders 63A are arranged in a rectangular pattern.

In an embodiment of the present invention, a pre-brushing device 7A is provided between the multi-roll leveler 6A and the sand-blasting descaler 8A, and as shown in fig. 2, the pre-brushing device 7A includes at least one upper brushing roller 71A and at least one lower brushing roller 72A, and the strip steel can pass between the upper brushing roller 71A and the lower brushing roller 72A. The strip steel after passing through the multi-roll leveler 6A enters a pre-brushing device 7A to brush the iron oxide scales with loose surfaces, and then enters a sand-throwing descaler 8A to descale. The loose iron scale on the surface of the strip steel is brushed off by the pre-brushing device 7A, so that in the sand-throwing descaling machine 8A, the steel sand is directly thrown to the iron scale which is difficult to treat on the strip steel, firstly, the steel sand and flushing water are saved, secondly, the iron scale brushed off by the pre-brushing device does not enter a sand-water mixing system of the sand-throwing descaling machine 8A, and the consumption of a filter screen is saved.

The sand-throwing descaler 8A is of a sealed structure; the strip head of the thick-specification strip steel is difficult to straighten well, an operator cannot see the strip steel in the strip threading process, the strip threading accident is easily caused, equipment is damaged, and the strip threading rod is quickly abraded. For this purpose, a warping head device 5A is arranged in front of the multi-roll leveler 6A, as shown in fig. 4, the warping head device 5A includes a lower guide plate 51A, a warping plate 52A, an upper platen 53A, a pressing cylinder 54A and a warping cylinder 55A, and the lower guide plate 51A and the warping plate 52A are sequentially distributed along the strip advancing direction 100A; the pressing cylinder 54A is connected with the upper pressing plate 53A and can drive the upper pressing plate 53A to move towards the lower guide plate 51A so as to press the strip steel on the lower guide plate 51A; the tilting cylinder 55A is connected with the tilting plate 52A and can drive the tilting plate 52A to move upwards so as to lift the strip steel on the tilting plate 52A upwards. In some embodiments, the tape raising head device 5A includes a rotating frame 531A, the upper pressing plate 53A is fixed to the rotating frame 531A, the rotating frame 531A is rotatably connected to a base of the tape raising head device 5A, a cylinder body of the pressing cylinder 54A is rotatably connected to the base, a piston rod of the pressing cylinder 54A is connected to the rotating frame 531A, and when the pressing cylinder 54A extends and retracts, the rotating frame 531A can be driven to swing so as to drive the upper pressing plate 53A to move toward the lower guide plate 51A.

In the process of threading, the strip steel moves along the strip steel advancing direction 100A, the strip head moves to the warping plate 52A in the strip head warping device 5A, the upper pressing plate 53A presses the strip steel on the lower guide plate 51A, and the warping plate 52A moves upwards to enable the strip head to bend upwards and warp. The belt head is tilted by a certain height, the height suitable for belt threading can be set to the height suitable for belt threading by tilting the belt head device 5A, different head tilting heights can be set for different materials and thicknesses, the belt threading accident is greatly reduced, the damage of the belt threading accident to equipment is reduced, and the operation rate of a unit is increased. And (3) operating the belt head warping device 5A to manufacture a belt head, after the belt head is manufactured, enabling the strip steel to enter an opened multi-roller leveling machine 6A, and when the belt head passes through the multi-roller leveling machine 6A, putting the multi-roller leveling machine 6A into the uncoiler 1A to establish tension and conveying the strip steel backwards together.

As shown in fig. 2, a head cutting shear 4A is arranged between the tape head tilting device 5A and the straight head straightener 3A, the strip steel enters the straight head straightener 3A after being uncoiled by the uncoiler 1A, the straightened strip steel runs to the head cutting shear 4A to cut out an out-of-tolerance or damaged tape head, and the straightened strip steel is conveyed to the tape head tilting device 5A to manufacture a tape head penetrating device.

In an embodiment of the present invention, a turning pinch roll 2A is provided between the uncoiler 1A and the straight straightener 3A. In order to enhance the effect of sand blasting and descaling, the strip descaling line comprises two sand blasting and descaling machines 8A which are arranged in series along the strip advancing direction 100A.

The utility model discloses an in the embodiment, be equipped with surface inspection appearance 11A behind drying equipment 10A, surface inspection appearance 11A carries out the inspection of surface quality to according to the belted steel surface quality condition that detects, adjust throwing sand descaler 8A's running state, improve the effect of descaling. The surface inspection tester 11A comprises high-definition cameras arranged on the upper surface and the lower surface of the strip steel, and the high-definition cameras can scan the surface of the strip steel in real time; the existing production line usually adopts a gray level meter for detecting the brightness of the surface of the strip steel, the detection of the brightness of the surface of the strip steel cannot reflect the specific degree of cleaning of iron scales, and the gray level meter generally only detects the central area of the strip steel; the surface inspection instrument 11A can inspect the quality of the surface of the strip steel in the full-width range, and more comprehensively reflect the surface state of the strip steel. The surface inspection instrument 11A may be configured with a defect database, which stores the surface topography of the normally cleaned strip steel, and compares the picture with the defects in the database, so as to analyze the cleaning state of the strip steel surface and judge the strip steel surface state. The surface inspection instrument 11A can perform closed-loop control with the sand throwing descaler 8A, and controls the rotation speed of a thrower, the angle of a throwing impeller, and the opening degree of a particle control valve in the sand throwing descaler 8A according to the detected surface state of the strip steel. In the sand-throwing descaler 8A, the flow rate of sand water can be controlled by adjusting the rotation speed of the sand-throwing device, and the proportion of the sand water can be controlled by the particle control valve. The surface inspection instrument 11A detects the state of the full-width plate surface strip steel to control the rotating speed and the casting angle of the sand thrower of the sand-throwing descaler 8A in a closed-loop mode, so that the water-sand ratio is reasonably adjusted, and unnecessary energy consumption is reduced. For example: if the detected surface topography shows that the sand throwing is excessive, a transmission signal is sent to the sand throwing device to reduce the rotating speed so as to reduce the consumption of steel sand and electric energy, or the speed of the unit is increased so as to improve the yield, so that the aim of reducing the consumption of ton steel is fulfilled.

Example two

The inventor researches a steel strip descaled by a steel grit spraying mode, and finds that: during descaling, after steel grit is stripped of iron scale of the strip steel, some tiny steel grit is inlaid on the surface of the strip steel. The high-pressure water pressure is very high, most of surface steel grit and dirt can be removed, but the jet force is very high when the steel grit is used for removing the oxide on the surface of the strip steel during descaling, a plurality of tiny particles are embedded into the surface of the strip steel, and the particles are difficult to clean out by washing water flow.

Therefore, the utility model provides a belted steel belt cleaning device, as shown in fig. 5a and 5b, this belted steel belt cleaning device includes: the strip steel feeding device comprises a box body 100, a strip steel feeding port 11 and a strip steel discharging port 12, wherein a strip steel feeding direction 13 of strip steel entering the box body 100 points to the strip steel discharging port 12 along the strip steel feeding port 11; the brush roll mechanism 200 comprises a brush roll driving mechanism 23, an upper brush roll 21 and a lower brush roll 22 which are oppositely arranged, strip steel can pass through the space between the upper brush roll 21 and the lower brush roll 22, and the brush roll driving mechanism 23 is used for driving the upper brush roll 21 and the lower brush roll 22 to rotate.

The strip steel after the descaling step enters the box 100 through the strip steel feed opening 11 and passes through between the upper brush rolls 21 and the lower brush rolls 22. The upper brush roller 21 and the lower brush roller 22 are driven to rotate by the brush roller driving mechanism 23, and the moving direction of the contact part of the upper brush roller 21 and the strip steel is kept opposite to the moving direction of the strip steel; the moving direction of the contact part of the lower brush roll 22 and the strip steel is kept opposite to the moving direction of the strip steel, the bristles of the upper brush roll 21 and the bristles of the lower brush roll 22 can generate a strong cleaning effect on the strip steel, and can respectively clean out impurity particles such as steel sand embedded in the surface of the strip steel, so that the cleaning effect is improved, and the technical problem that the strip steel after the descaling step in the prior art is easy to be cleaned unclean is solved.

Both ends of the upper brush roller 21 and both ends of the lower brush roller 22 are respectively mounted to bearing housings. The brush roller driving mechanism 23 includes a brush roller motor 231 drivingly connected to the upper brush roller 21 and a brush roller motor 231 drivingly connected to the lower brush roller 22. Preferably, the brush roller motor 231 is a variable frequency motor, which facilitates adjustment of the rotation speed of the upper brush roller 21 and the rotation speed of the lower brush roller 22 according to the speed of the production line. Preferably, the bristles of the upper and

lower brush rollers

21 and 22 are made of nylon.

In an embodiment of the present invention, the strip steel cleaning apparatus includes at least one set of first liquid spraying mechanism 300 disposed in the case 100, and the first liquid spraying mechanism 300 includes a first upper liquid spraying pipe 31 for spraying liquid to the bristles of the upper brush roller 21 and a first lower liquid spraying pipe 32 for spraying liquid to the bristles of the lower brush roller 22. The first upper liquid spraying pipe 31 is located above the strip steel, the first lower liquid spraying pipe 32 is located below the strip steel, the first upper liquid spraying pipe 31 and the first lower liquid spraying pipe 32 respectively extend along the axial direction of the upper brush roller 21, and a plurality of spraying openings distributed at intervals are formed in the pipe wall. The liquid sprayed from the first liquid spraying mechanism 300 can clean the cleaned foreign particles and dirt, and can take away the heat of the bristles in the brush roller mechanism 200 to cool the bristles, thereby prolonging the service life of the upper brush roller 21 and the lower brush roller 22. Preferably, the liquid sprayed from the first upper spray pipe 31 is sprayed to the position of the upper brush roller 21 contacting the strip steel, and the liquid sprayed from the first lower spray pipe 32 is sprayed to the position of the lower brush roller 22 contacting the strip steel.

Further, at least one group of brush roller mechanisms 200 comprises a first brush roller mechanism 201 and a second brush roller mechanism 202 which are sequentially distributed along the feeding direction 13; at least one set of the first liquid spraying mechanisms 300 includes the first liquid spraying mechanism 300 for spraying liquid to the first brush roll mechanism 201 and the first liquid spraying mechanism 300 for spraying liquid to the second brush roll mechanism 202, so as to enhance the cleaning effect on the strip steel.

As shown in fig. 5a, the first brush roller mechanism 201, the first liquid spraying mechanism 300 which sprays liquid to the first brush roller mechanism 201, the second brush roller mechanism 202, and the first liquid spraying mechanism 300 which sprays liquid to the second brush roller mechanism 202 are sequentially distributed along the feeding direction 13. The first liquid ejection mechanisms 300 eject the liquids toward the brush roller mechanisms 200 in the reverse directions of the feeding direction 13, respectively. Specifically, the first upper spray pipes 31 spray the liquid in a direction inclined from the top downward in the direction opposite to the feeding direction 13, and the first lower spray pipes 32 spray the liquid in a direction inclined from the bottom upward in the direction opposite to the feeding direction 13. By arranging the first upper spray pipes 31 and the first lower spray pipes 32 in the above manner, the spray flow can better clean impurities from the surface of the strip and reduce the temperature of the brush roller.

In one embodiment of the present invention, the strip steel cleaning apparatus includes at least one set of second liquid spraying mechanisms 400 disposed in the box 100, and the second liquid spraying mechanisms 400 are used for spraying liquid toward the strip steel to wash the surface of the strip steel. Specifically, the second liquid ejection mechanism 400 includes a second upper liquid ejection tube 41 and a second lower liquid ejection tube 42. The second upper liquid spraying pipe 41 is located above the strip steel, the second lower liquid spraying pipe 42 is located below the strip steel, the second upper liquid spraying pipe 41 and the second lower liquid spraying pipe 42 respectively extend along the axial direction of the upper brush roller 21, and a plurality of spraying openings distributed at intervals are formed in the pipe wall. Further, the spraying direction of the second upper spraying pipe 41 and the spraying direction of the second lower spraying pipe 42 are perpendicular to the feeding direction 13, so that the washing effect on the strip steel is enhanced.

In order to facilitate control of the separation and approach between the upper brush roller 21 and the lower brush roller 22, bearing housings at both ends of the upper brush roller 21 are slidably coupled to the case 100, so that the upper brush roller 21 can slide up and down with respect to the case 100; the brush roller mechanism 200 includes a first air cylinder 24 connected to the upper brush roller 21, and the first air cylinder 24 is used to drive the upper brush roller 21 to move in the up-and-down direction. Specifically, the piston rod of the first cylinder 24 is connected to the bearing housing of the upper brush roller 21.

Further, the brush roll mechanism 200 comprises a lifting mechanism 25 connected with the upper brush roll 21, the lifting mechanism 25 is used for adjusting the distance between the upper brush roll 21 and the lower brush roll 22, fine adjustment of the position of the upper brush roll 21 is achieved, and after bristles of the upper brush roll 21 or bristles of the lower brush roll 22 are worn, the upper brush roll 21 can be driven to move downwards with high precision, the stability of the cleaning strength of the upper brush roll 21 and the lower brush roll 22 to the steel is guaranteed, the cleaning effect is improved, the service life of the upper brush roll 21 and the lower brush roll 22 is prolonged, and the replacement frequency is reduced. Preferably, the elevating mechanism 25 employs a screw elevator 251, and the screw elevator 251 is connected to a cylinder body of the first cylinder 24 to drive the first cylinder 24 and the upper brush roller 21 to move together.

More preferably, the bearing seats at both ends of the upper brush roller 21 are respectively connected with first cylinders 24, and each first cylinder 24 is respectively connected with a spiral elevator 251; the spiral lifters 251 of both ends of the upper brush roller 21 are coupled by a synchronizing shaft 26, the spiral lifter 251 of one end is provided with a motor for driving the lifting, and the spiral lifter 251 of the other end is provided with an encoder for calculating the amount of the lifting displacement to ensure the accuracy of the amount of the pressing down.

When the strip steel cleaning device operates, strip steel moves forwards along the feeding direction 13, impurities on the surface of the strip steel can be brushed away from the strip steel by the reverse motion of the lower surface of the upper brush roll 21 along the feeding direction 13, and part of the impurities can be attached to bristles; in order to reduce the foreign matters attached to the upper brush roller 21 and move again to the strip steel with the rotation of the upper brush roller 21, the inventor modified the strip steel cleaning apparatus: as shown in fig. 5a and 5c, the brush roller mechanism 200 includes an upper sanding bar 211, the upper sanding bar 211 contacts with the outer circumferential surface of the upper brush roller 21, and when the upper brush roller 21 rotates, the bristles collide against the upper sanding bar 211, which is advantageous for separating foreign substances attached to the bristles from the bristles. Preferably, the upper brush bar 211 extends along the axial direction of the upper brush roller 21, and both ends are respectively fixedly connected with the bearing seats of the upper brush roller 21 through the connecting rods 2111.

The upper brush bar 211 can be installed at any position of the circumferential direction of the upper brush roller 21, the upper brush roller 21 and the upper brush bar 211 move relatively, and when the bristles collide with the upper brush bar 211, impurities can be promoted to be separated from the bristles under the action of centrifugal force. However, the inventors found that: impurities can continue to move under the action of inertia and gravity after being separated from the bristles, and part of impurities can fall onto the surface of the strip steel again. For this purpose, the inventor arranges the upper sand brushing rod 211 at one side of the upper brush roller 21 close to the strip steel feed inlet 11 and above the axis of the upper brush roller 21; and, the brush roll mechanism 200 includes a collecting groove 212, and the collecting groove 212 is disposed above the upper brush bar 211, so that the impurities are separated from the bristles and then continuously move upward and fall into the collecting groove 212.

The upper surface of the lower brush roll 22 moves in the reverse direction of the feeding direction 13, impurities on the lower surface of the strip steel can be brushed away from the strip steel, and part of the impurities can be attached to the bristles; in order to reduce the foreign matters attached to the lower brush rolls 22 and move again to the strip steel with the rotation of the lower brush rolls 22, the inventors modified the strip steel cleaning apparatus: as shown in fig. 5a and 5c, the brush roller mechanism 200 includes a lower brush sand bar 221, the lower brush sand bar 221 contacts with the outer circumferential surface of the lower brush roller 22, and the bristles collide against the lower brush sand bar 221 when the lower brush roller 22 rotates, thereby facilitating the foreign substances attached to the bristles to be separated from the bristles by centrifugal action. Preferably, the lower sand brushing rod 221 extends along the axial direction of the lower brush roller 22, and two ends of the lower sand brushing rod are fixedly connected with bearing seats of the lower brush roller 22 through connecting rods respectively.

The lower sand brushing rod 221 may be installed at any position in the circumferential direction of the lower brush roll 22, and preferably, the inventor sets the lower sand brushing rod 221 at a side of the lower brush roll 22 close to the strip steel feed inlet 11 and below the axis of the lower brush roll 22, and after the bristles collide with the lower sand brushing rod 221, the impurities are separated from the bristles and fall to the bottom of the box 100.

In one embodiment of the present invention, the strip steel cleaning apparatus includes a scrubber 500 for contacting with the upper surface of the strip steel, the scrubber 500 is disposed on one side of the second liquid spraying mechanism 400 close to the strip steel discharge port 12; the scrubbing brush 500 is provided with at least one group of brush bristles 51 for contacting with the upper surface of the strip steel, and the brush bristles in the brush bristles 51 are arranged along a path inclined from the center to the outer side along the feeding direction along the width direction of the upper surface of the strip steel. As shown in fig. 5b and 5d, the width direction of the upper surface of the strip steel is parallel to the axial direction of the upper brush roller 21; the strip steel moves along the feeding direction 13, the bristles in the bristle group 51 are in contact with the upper surface of the strip steel, and liquid such as water on the upper surface of the strip steel moves forwards along with the strip steel and can move outwards under the guidance of the bristle group 51, so that the liquid is brushed away from the strip steel. Preferably, the bristles of the bristle group 51 are arranged in series along the arrangement path thereof, and the bristles are natural bristles.

Further, as shown in fig. 5d, the bristles of the bristle group 51 are arranged in a path inclined from the center to both sides along the feeding direction 13, and the arrangement path of the bristles of the bristle group 51 is bent in a convex shape in the opposite direction to the feeding direction 13, so as to guide the liquid on the surface of the strip steel to sweep to both sides. Preferably, the scrubbing brush 500 is provided with a plurality of bristle groups 51 spaced along the feeding direction 13 to reduce the residual liquid on the surface of the strip.

Further, as shown in fig. 5a and 5e, the strip cleaning apparatus includes a second cylinder 52 connected to the scrubber 500, and the second cylinder 52 is used to drive the scrubber 500 to move up and down so as to make the scrubber 500 close to or far away from the strip.

In an embodiment of the present invention, the strip steel cleaning device includes a wringing roller mechanism 600, the wringing roller mechanism 600 includes an upper wringing roller 61, a lower wringing roller 62 and a wringing driving mechanism 63 connected with the lower wringing roller 62, the upper wringing roller 61 and the lower wringing roller 62 are arranged oppositely, and the strip steel can pass between the upper wringing roller 61 and the lower wringing roller 62 along the feeding direction 13; the wringing drive mechanism 63 is used to drive the lower wringing roller 62 to rotate. When the device is in operation, the upper wringing roller 61 is in contact with the upper surface of the strip steel; the lower wringing roller 62 is in contact with the lower surface of the strip steel, the lower wringing roller 62 is driven by the wringing driving mechanism 63 to rotate, and the moving direction of the contact surface of the lower wringing roller 62 and the strip steel is kept to be the same as the moving direction of the strip steel. The upper wringing roller 61 and the lower wringing roller 62 cooperate to wring away liquid on the surface of the strip steel, so that the moisture on the surface of the strip steel is greatly reduced, the burden of the subsequent drying step is reduced, and the generation of surface defects of the strip steel can be effectively inhibited. Preferably, the wringing drive mechanism 63 includes a variable frequency gear motor and an encoder to control the rotational speed of the lower wringing roller 62 to match the travel speed of the strip.

Further, the upper drying roll 61 is connected with a third cylinder 64, and the third cylinder 64 is used for driving the upper drying roll 61 to move up and down so as to control the separation and approach of the upper drying roll 61 and the lower drying roll 62 and apply pressure to the strip steel. Preferably, the strip cleaning apparatus includes two wringer roller mechanisms 600 distributed along the feed direction 13.

In order to ensure the cleaning effect of the strip steel cleaning device, as shown in fig. 5a, the first brush roll mechanism 201, the first liquid spraying mechanism 300 for spraying liquid to the first brush roll mechanism 201, the second brush roll mechanism 202, the first liquid spraying mechanism 300 for spraying liquid to the second brush roll mechanism 202, the second liquid spraying mechanism 400, the scrubbing brush 500 and the wringing roll mechanism 600 are sequentially distributed along the feeding direction 13.

In an embodiment of the present invention, as shown in fig. 5a, a plurality of rollers 71 and a plurality of guide plates 72 for supporting the strip steel are disposed in the box 100, the plurality of rollers 71 are distributed along the feeding direction 13 at intervals, and the plurality of guide plates 72 are distributed along the feeding direction 13 at intervals, so as to ensure the smooth threading of the strip steel, so that the strip steel moves more stably, and the effects of cleaning steel grit particles and sweeping away moisture by the scrubbing brush are further improved.

EXAMPLE III

The strip steel descaling production line provided by the utility model can operate according to the steps shown in figure 6, including: step S10, uncoiling; step S20, descaling; step S30, cleaning and drying; step S40, performing a crosscut process by the flying shear 13A; step S50, performing slitting processing by the slitting machine 17A, and winding; step S60, coiling; step S40, step S50, and step S60 are alternatively performed.

The strip steel descaling production line has the functions of transversely cutting and longitudinally cutting strips, when the production line is in actual operation, according to the size of strip steel and the requirements of downstream users, the step S40, the step S50 and the step S60 are alternatively implemented, the strip steel after surface descaling can be made into the required width or the required length, steel coils, fixed-length steel plates or strip steel coils are produced according to the requirements of the users, products are various, the uncoiling and coiling operations are favorably reduced, the production procedures are reduced, particularly for thick-specification strip steel, the production line has a better energy-saving medium effect, the occupied area can be reduced, and the investment cost and the production cost are saved.

The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a strip steel descaling production line which characterized in that includes: the uncoiler, the straight head straightener, the sand-throwing descaler, the strip steel cleaning device, the drying equipment and the coiler are sequentially arranged along the advancing direction of the strip steel;

flying shears and a slitting machine are arranged between the drying equipment and the coiling machine, and the flying shears and the slitting machine are arranged in the front and back direction of the strip steel advancing direction.

2. The strip steel descaling production line of claim 1, wherein the slitter is located between the flying shear and the coiler.

3. The strip steel descaling production line of claim 1 or 2, wherein the flying shears are followed by a conveying belt and a stacking platform, and the conveying belt is used for conveying the strip steel transversely cut by the flying shears to the stacking platform.

4. The strip steel descaling production line of claim 1 or 2, wherein a loop guide table is arranged behind the slitting machine.

5. Strip descaling line according to claim 1 or 2, wherein the coiler is preceded by an oiler.

6. The strip steel descaling line of claim 5, wherein the oiling machine is preceded by a double pinch roll.

7. The strip steel descaling production line of claim 1, wherein a multi-roll leveler is arranged between the sand-throwing descaler and the straight-head leveler, the multi-roll leveler comprises an upper leveling roll group and a lower leveling roll group which are arranged up and down, and the strip steel is repeatedly bent in the process of passing between the upper leveling roll group and the lower leveling roll group;

the upper leveling roller group comprises at least four upper leveling working rollers which are sequentially arranged along the advancing direction of the strip steel;

the lower leveling roller group comprises at least five lower leveling working rollers, the at least five lower leveling working rollers are sequentially arranged along the advancing direction of the strip steel and are staggered with the at least four upper leveling working rollers.

8. The strip steel descaling production line of claim 7, wherein two upper supporting roller sets are arranged above each upper leveling work roller, and two lower supporting roller sets are arranged below each lower leveling work roller.

9. The strip steel descaling production line of claim 7, wherein the upper leveling roller group is connected with a pressing cylinder, and the pressing cylinder is used for driving the upper leveling roller group to move up and down above the lower leveling roller group.

10. The strip steel descaling production line of claim 7, wherein a pre-brushing device is arranged between the multi-roll leveler and the sand-throwing descaler, the pre-brushing device comprises at least one upper brushing roll and at least one lower brushing roll, and the strip steel can pass through the space between the upper brushing roll and the lower brushing roll.

11. The strip steel descaling production line according to claim 7, wherein a warping head device is arranged in front of the multi-roll leveler and comprises a lower guide plate, a warping head plate, an upper pressing plate, a pressing cylinder and a warping head cylinder, and the lower guide plate and the warping head plate are sequentially distributed along the strip steel advancing direction;

the pressing cylinder is connected with the upper pressing plate and can drive the upper pressing plate to move towards the lower guide plate so as to press the strip steel on the lower guide plate;

the warping head cylinder is connected with the warping head plate and can drive the warping head plate to move upwards, so that strip steel on the warping head plate is lifted upwards.

12. The strip steel descaling production line of claim 11, wherein a crop shear is arranged between the strip tilting head device and the straight head straightener.