CN108515258A - Cement roller press grinding roller restorative procedure - Google Patents
Cement roller press grinding roller restorative procedure Download PDFInfo
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- CN108515258A CN108515258A CN201810244701.8A CN201810244701A CN108515258A CN 108515258 A CN108515258 A CN 108515258A CN 201810244701 A CN201810244701 A CN 201810244701A CN 108515258 A CN108515258 A CN 108515258A
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- grinding roller
- plasma gas
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- gas plane
- plasma
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Plasma Technology (AREA)
Abstract
The present invention provides a kind of cement roller press grinding roller restorative procedure, and the operating parameter set by roll squeezer grinding roller restorative procedure can ensure that plasma gas plane machine can reduce the generation of current interruption to the maximum extent during gouge, improve working efficiency；Noise, smog, the dust generated simultaneously is less, optimizes the work on the spot environment of operating personnel, reduces atmosphere pollution.Simultaneously distance detection device and arc-striking module are added in roll squeezer grinding roller restorative procedure, plasma gas plane machine can be reduced and encounter the waste generated when pit, and the pit of grinding roller is easy to make plasma gas plane machine that current interruption occur, distance detection device is matched with arc-striking module, can when plasma gas plane machine occur current interruption after resume work in time, ensure that gouge process and quality.
Description
Technical field
The present invention relates to milling apparatus technical field more particularly to a kind of cement roller press grinding roller restorative procedures.
Background technology
Roll squeezer is designed according to bed-grinding principle, is mainly characterized by：High pressure, full gear, full material, material bed powder
It is broken.The squeeze roller group that roll squeezer is rotated synchronously in opposite directions by two is at one is fixing roller, and one is movable roll.Material is from two rollers
Top is fed, and is squeezed between pressure roller continuous band enters roller, after the high pressure effect of 100 ~ 150MPa, is become under closely knit material cake slave
Discharge.The material cake of discharge, in addition to containing a certain proportion of particulate finished product.In the inside of non-finished particle, a large amount of crackles are generated, are changed
It has been apt to the grindability of material, and in further crushing process, can have significantly reduced grinding energy.
Requirement of the roll squeezer to the size and uniformity of material size is more stringent, and general 95% or more particle should be less than
The 3% of roller diameter, individual bulk materials are not also preferably greater than the 5% of roller diameter.In use, when the ratio between material size and roller diameter exist
When within 3.5%, roll squeezer smooth running；If the increasing of feeding granularity is twice, material bed will be made uneven, can be also unfavorable for object
Between material nibbles two roller of people, this vibration values that may result in roll squeezer rises 5 times.Roll squeezer require roll surface along its length on
Size distribution cannot differ too big, otherwise easily cause the inclined roller phenomenon of roll squeezer, influence system operatio.Roll squeezer is to brittleness, sky
The more material squeezing effect of gap is good.But in order to reduce production cost and trade waste, the addition of mixing material be utilized to get over
Come bigger, some ratios reach 50%.The mixing material of addition mainly has gangue, black stone, slag, grain slag etc., these mixing materials
All stone, grindability is poor, accelerates the rate of wear of roll surface of roller press.Will result in after a period of use roll surface pit,
Situations such as bonding, wearing.Since the cost of grinding roller is higher, that buys again is of high cost, therefore when grinding roller damages to a certain extent
When, grinding roller can be repaired.
The fatigue layer of grinding roller is removed by the reparation generally use carbon arc air gouging of grinding roller in the prior art, then uses built-up welding
Technology restores grinding roller.Carbon arc air gouging is to make electrode using carbon-point or graphite rod, and high-temperature electric arc is generated between workpiece, and metal is melted
Change, is used in combination compressed air that will melt a kind of method of surface finish of metal blowing.Carbon arc air gouging generate noise is big, smog is big,
Also with dust pollution.Before the procedure, it needs roll surface polishing totally, the circuit that otherwise electrode is formed with workpiece will break
It opens, current interruption occurs.Carbon arc air gouging is also easy to the case where generating carburizing.The carbon-point of carbon arc air gouging consumption simultaneously is more, and cost is higher,
Also it is unfavorable for saving resource.If using plasma gouge, during plasma gouge cement roller, plasma gouge by
To gas flow, arc length, size of current, the problem of being affected, be easy to happen current interruption, waste energy of cutting speed.
Invention content
In view of this, it is necessary to provide a kind of environmentally friendly, convenient, cost-effective and resource roll squeezer grinding roller restorative procedures.
A kind of roll squeezer grinding roller restorative procedure includes the following steps：
The both ends horizontal of grinding roller is erected on tumbler by step S001, so that tumbler drives grinding roller rotation；
Step S002, by the nozzle alignment grinding roller of the plasma gas plane machine in first movement mechanism, plasma gas plane machine
Nozzle be located at the first end of grinding roller, and nozzle is down-set, the angle of the injection direction of nozzle and the vertical plane direction of grinding roller
It it is 30 ~ 45 degree, and the angle of the cross section of the injection direction and grinding roller of nozzle is 30 ~ 45 degree；
Step S003 rotates grinding roller, and the rotating speed of grinding roller is 500 millimeters per minute, and starts plasma gas plane machine and carried out to grinding roller
Gouge controls a length of 20 ~ 50 millimeters of the electric arc of plasma gas plane machine, and gouge depth is 15 ~ 20 millimeters, and gouge width is 15 ~ 20
Millimeter, grinding roller turned one circle after, first movement mechanism drive plasma gas plane machine along grinding roller cross-section row into 15 ~ 20 in the least
Rice continues to carry out gouge to grinding roller, and the plasma gas plane machine is equipped with distance detection device, when distance detection device detects mill
When roller surface is more than setpoint distance at a distance from the nozzle of plasma gas plane machine, plasma gas plane machine stops to grinding roller gouge；When
Distance detection device detect roller surface at a distance from the nozzle of plasma gas plane machine be less than or equal to setpoint distance when, wait from
Sub- gouge machine carries out gouge to grinding roller, and plasma gas plane machine is additionally provided with arc-striking module, so that plasma gas plane machine quickly generates electricity
Arc, when plasma gas plane machine stops to grinding roller gouge, arc-striking module works on；When need restart plasma gas plane machine
When carrying out gouge to grinding roller, arc-striking module makes the electrode of plasma gas plane machine generate high-temperature electric arc with roller surface, to mill
Roller carries out gouge；
Step S004, when plasma gas plane machine is moved to the second end of grinding roller, control device adjusts the angle of plasma gas plane machine
Degree, it is 30 ~ 45 degree to make the angle of the vertical plane of plasma gas plane machine and grinding roller again, while control device adjusts first movement machine
The direction of structure makes mobile mechanism's counter motion, until plasma gas plane machine reaches the first end of grinding roller, repeatedly, by grinding roller
Fatigue layer shoot off exposing base metal layer, and roller surface free from flaw after carrying out flaw detection completely；
Step S005 closes plasma gas plane machine, and the second mobile mechanism, plasma welding machine, water injector is arranged in grinding roller
Top, the nozzle of plasma welding machine faces with grinding roller downward, and so that plasma welding machine and water injector is arranged and moved second
On motivation structure, so that the second mobile mechanism drives plasma welding machine and water injector to be moved along the cross section of grinding roller, it will spray water
Device is arranged at the rear of plasma welding machine, in plasma welding machine heap postwelding spray cooling, layer surface to be made to generate segmentation crack,
To prevent butt welding layer from falling off, while eliminating layer internal stress；
Step S006, the grinding roller to removing fatigue layer are preheated to roll temperature and reach 200 degrees Celsius or more, start plasma welding machine
And water injector, carry out built-up welding to shooting off the base metal layer after fatigue layer.
Advantageous effect：Every operating parameter of the roll squeezer grinding roller restorative procedure of the present invention is all by a large number of experiments, instead
Review the optimal data of card.Parameter is operated above by setting, can ensure that plasma gas plane machine can be most during gouge
The generation for reducing to limits current interruption, improves working efficiency；Noise, smog, the dust generated simultaneously is less, optimizes operation
The work on the spot environment of personnel, reduces atmosphere pollution.Distance detection dress is added in roll squeezer grinding roller restorative procedure simultaneously
It sets and arc-striking module, plasma gas plane machine can be reduced and encounter the waste generated when pit, and the pit of grinding roller is easy to make
Current interruption occurs for ion-gas planer, and distance detection device matches with arc-striking module, can when plasma gas plane machine generation current interruption after
Resume work in time, ensure that gouge process and quality.
Description of the drawings
Fig. 1 is the circuit diagram of arc-striking module.
In figure：Arc ignition circuit 10, coil 101, nozzle 20, electrode 30, rectifier 40.
Specific implementation mode
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, common for this field
For technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
A kind of roll squeezer grinding roller restorative procedure includes the following steps：
The both ends horizontal of grinding roller is erected on tumbler by step S001, so that tumbler drives grinding roller rotation；
Step S002, by the nozzle alignment grinding roller of the plasma gas plane machine in first movement mechanism, plasma gas plane machine
Nozzle be located at the first end of grinding roller, and nozzle is down-set, the angle of the injection direction of nozzle and the vertical plane direction of grinding roller
It it is 30 ~ 45 degree, and the angle of the cross section of the injection direction and grinding roller of nozzle is 30 ~ 45 degree；
Vertical plane direction refers to the axis of grinding roller and the plane where the line perpendicular to ground in step S002.
Step S003 rotates grinding roller, and the rotating speed of grinding roller is 500 millimeters per minute, and starts plasma gas plane machine to grinding roller
Gouge is carried out, a length of 20 ~ 50 millimeters of the electric arc of plasma gas plane machine is controlled, gouge depth is 15 ~ 20 millimeters, and gouge width is 15
~ 20 millimeters, after grinding roller has turned a circle, first movement mechanism drives plasma gas plane machine along the cross-section row of grinding roller into 15 ~ 20
Millimeter continues to carry out gouge to grinding roller, and the plasma gas plane machine is equipped with distance detection device, when distance detection device detects
When roller surface is more than setpoint distance at a distance from the nozzle of plasma gas plane machine, plasma gas plane machine stops to grinding roller gouge；
When distance detection device detects that roller surface is less than or equal to setpoint distance at a distance from the nozzle of plasma gas plane machine, etc.
Ion-gas planer carries out gouge to grinding roller, and plasma gas plane machine is additionally provided with arc-striking module, so that plasma gas plane machine quickly generates
Electric arc, when plasma gas plane machine stops to grinding roller gouge, arc-striking module works on；When need restart plasma gouge
When machine carries out gouge to grinding roller, arc-striking module makes the electrode of plasma gas plane machine generate high-temperature electric arc with roller surface, to right
Grinding roller carries out gouge；
In a better embodiment, Fig. 1 is please referred to, the arc-striking module includes arc ignition circuit 10, arc ignition circuit and plasma
The nozzle 20 and electrode 30 of gouge machine constitute circuit, and after energization, plasma-arc is generated between electrode 30 and nozzle 20, is being drawn
Under the action of the high-temperature plasma air-flow that arc module generates, the difficulty that cement roller surface generates electric arc with electrode 30 substantially reduces,
To enable plasma gas plane machine quickly to resume work, ensure that the working efficiency of plasma gas plane machine is unaffected.
Step S004, when plasma gas plane machine is moved to the second end of grinding roller, control device adjusts plasma gas plane machine
Angle, make again the vertical plane of plasma gas plane machine and grinding roller angle be 30 ~ 45 degree, while control device adjust first shifting
The direction of motivation structure makes mobile mechanism's counter motion, until plasma gas plane machine reaches the first end of grinding roller, it repeatedly, will
The fatigue layer of grinding roller shoots off exposing base metal layer, and roller surface free from flaw after carrying out flaw detection completely；
Step S005 closes plasma gas plane machine, and the second mobile mechanism, plasma welding machine, water injector is arranged in grinding roller
Top, the nozzle of plasma welding machine faces with grinding roller downward, and so that plasma welding machine and water injector is arranged and moved second
On motivation structure, so that the second mobile mechanism drives plasma welding machine and water injector to be moved along the cross section of grinding roller, it will spray water
Device is arranged at the rear of plasma welding machine, in plasma welding machine heap postwelding spray cooling, layer surface to be made to generate segmentation crack,
To prevent butt welding layer from falling off, while eliminating layer internal stress；
In a better embodiment, water injector includes nozzle, water-supply-pipe, supporting rack, and nozzle is located at the end of water-supply-pipe, defeated
Water pipe is fixed on supporting rack, and supporting rack is fixedly connected with the second mobile mechanism, and the second mobile mechanism drives supporting rack movement, the
Two mobile mechanisms include the second sliding-rail groove, the second sliding block, and the second sliding block is connected together with the second sliding-rail groove, and the second sliding block can be
It is slided on second sliding-rail groove, the welding gun of supporting rack and plasma welding machine is fixedly connected with the second sliding block, and water injector setting is waiting
The rear of the nozzle of ion welding machine, the nozzle of water injector are 100 ~ 150 millimeters at a distance from the nozzle of plasma welding machine, water spray
The water temperature of device is 20 ~ 30 degrees Celsius, and water spray is 250 ~ 300 milliliters per minute.If the water temperature of water spray is too low, built-up welding
When molten wide it is inadequate, will result in built-up welding efficiency reduction.
Step S006, the grinding roller to removing fatigue layer are preheated to roll temperature and reach 200 degrees Celsius or more, start plasma
Welding machine and water injector carry out built-up welding to shooting off the base metal layer after fatigue layer.
Every operating parameter of the roll squeezer grinding roller restorative procedure of the present invention is verified repeatedly most by a large number of experiments
Excellent data.Parameter is operated above by setting, can ensure that plasma gas plane machine can drop to the maximum extent during gouge
The generation of low current interruption, improves working efficiency；Noise, smog, the dust generated simultaneously is less, optimizes the scene of operating personnel
Working environment reduces atmosphere pollution.Simultaneously distance detection device and striking mould are added in roll squeezer grinding roller restorative procedure
Block can reduce plasma gas plane machine and encounter the waste generated when pit, and the pit of grinding roller is easy to make plasma gas plane machine
Current interruption occurs, distance detection device matches with arc-striking module, can when plasma gas plane machine generation current interruption after restore work in time
Make, ensure that gouge process and quality.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and is wanted according to right of the present invention
Equivalent variations made by asking, still belong to the scope covered by the invention.
Claims (3)
1. a kind of cement roll squeezer grinding roller restorative procedure, it is characterised in that：Include the following steps：
The both ends horizontal of grinding roller is erected on tumbler by step S001, so that tumbler drives grinding roller rotation；
Step S002, by the nozzle alignment grinding roller of the plasma gas plane machine in first movement mechanism, plasma gas plane machine
Nozzle be located at the first end of grinding roller, and nozzle is down-set, the angle of the injection direction of nozzle and the vertical plane direction of grinding roller
It it is 30 ~ 45 degree, and the angle of the cross section of the injection direction and grinding roller of nozzle is 30 ~ 45 degree；
Step S003 rotates grinding roller, and the rotating speed of grinding roller is 500 millimeters per minute, and starts plasma gas plane machine and carried out to grinding roller
Gouge controls a length of 20 ~ 50 millimeters of the electric arc of plasma gas plane machine, and gouge depth is 15 ~ 20 millimeters, and gouge width is 15 ~ 20
Millimeter, grinding roller turned one circle after, first movement mechanism drive plasma gas plane machine along grinding roller cross-section row into 15 ~ 20 in the least
Rice continues to carry out gouge to grinding roller, and the plasma gas plane machine is equipped with distance detection device, when distance detection device detects mill
When roller surface is more than setpoint distance at a distance from the nozzle of plasma gas plane machine, plasma gas plane machine stops to grinding roller gouge；When
Distance detection device detect roller surface at a distance from the nozzle of plasma gas plane machine be less than or equal to setpoint distance when, wait from
Sub- gouge machine carries out gouge to grinding roller, and plasma gas plane machine is additionally provided with arc-striking module, so that plasma gas plane machine quickly generates electricity
Arc, when plasma gas plane machine stops to grinding roller gouge, arc-striking module works on；When need restart plasma gas plane machine
When carrying out gouge to grinding roller, arc-striking module makes the electrode of plasma gas plane machine generate high-temperature electric arc with roller surface, to mill
Roller carries out gouge；
Step S004, when plasma gas plane machine is moved to the second end of grinding roller, control device adjusts the angle of plasma gas plane machine
Degree, it is 30 ~ 45 degree to make the angle of the vertical plane of plasma gas plane machine and grinding roller again, while control device adjusts first movement machine
The direction of structure makes mobile mechanism's counter motion, until plasma gas plane machine reaches the first end of grinding roller, repeatedly, by grinding roller
Fatigue layer shoot off exposing base metal layer, and roller surface free from flaw after carrying out flaw detection completely；
Step S005 closes plasma gas plane machine, and the second mobile mechanism, plasma welding machine, water injector is arranged in grinding roller
Top, the nozzle of plasma welding machine faces with grinding roller downward, and so that plasma welding machine and water injector is arranged and moved second
On motivation structure, so that the second mobile mechanism drives plasma welding machine and water injector to be moved along the cross section of grinding roller, it will spray water
Device is arranged at the rear of plasma welding machine, in plasma welding machine heap postwelding spray cooling, layer surface to be made to generate segmentation crack,
To prevent butt welding layer from falling off, while eliminating layer internal stress；
Step S006, the grinding roller to removing fatigue layer are preheated to roll temperature and reach 200 degrees Celsius or more, start plasma welding machine
And water injector, carry out built-up welding to shooting off the base metal layer after fatigue layer.
2. cement roll squeezer grinding roller restorative procedure as described in claim 1, it is characterised in that：The arc-striking module includes
The nozzle 20 and electrode 30 of arc ignition circuit 10, arc ignition circuit and plasma gas plane machine constitute circuit, after energization, electrode 30 and spray
Plasma-arc is generated between mouth 20, under the action of the high-temperature plasma air-flow that arc-striking module generates, cement roller surface and electricity
The difficulty that pole 30 generates electric arc substantially reduces, and to enable plasma gas plane machine quickly to resume work, ensures plasma gouge
The working efficiency of machine is unaffected.
3. cement roll squeezer grinding roller restorative procedure as described in claim 1, it is characterised in that：The nozzle of water injector with
The distance of the nozzle of plasma welding machine is 100 ~ 150 millimeters, and the water temperature of water injector is 20 ~ 30 degrees Celsius, and water spray is every point
250 ~ 300 milliliters of clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244701.8A CN108515258B (en) | 2018-03-23 | 2018-03-23 | Repairing method for grinding roller of cement roller press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244701.8A CN108515258B (en) | 2018-03-23 | 2018-03-23 | Repairing method for grinding roller of cement roller press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108515258A true CN108515258A (en) | 2018-09-11 |
| CN108515258B CN108515258B (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810244701.8A Active CN108515258B (en) | 2018-03-23 | 2018-03-23 | Repairing method for grinding roller of cement roller press |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352223A (en) * | 2018-11-15 | 2019-02-19 | 安徽应流集团霍山铸造有限公司 | A kind of method that water cooling reduces repair welding area temperature |
| CN111055001A (en) * | 2020-01-03 | 2020-04-24 | 无锡市产品质量监督检验院 | Cement roller press surface additive manufacturing repair device and repair method thereof |
| CN111843143A (en) * | 2020-08-11 | 2020-10-30 | 成都飞匠智能科技有限公司 | Workpiece surface shaping method and system based on plasma air gouging |
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| JPS61172676A (en) * | 1985-01-25 | 1986-08-04 | Hitachi Seiko Ltd | Cutting method of pipe by plasma arc |
| CN101947713A (en) * | 2010-09-17 | 2011-01-19 | 江西恒大高新技术股份有限公司 | Roll surface wear-resisting repair technology for cement roller press |
| CN103817484A (en) * | 2014-03-17 | 2014-05-28 | 沈阳哈维尔表面工程技术有限公司 | Restoring method used for single-tooth roller crushing mechanism of sintering machine |
| CN104384691A (en) * | 2014-11-14 | 2015-03-04 | 大连华锐重工起重机有限公司 | Device for processing rope grooves of coiling block by utilizing plasma gouging and processing method of device |
| CN205464765U (en) * | 2016-03-31 | 2016-08-17 | 广东省焊接技术研究所（广东省中乌研究院） | System is got rid of to outside of tubes flash butt welding welding seam burr rotation type plasma |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS61172676A (en) * | 1985-01-25 | 1986-08-04 | Hitachi Seiko Ltd | Cutting method of pipe by plasma arc |
| CN101947713A (en) * | 2010-09-17 | 2011-01-19 | 江西恒大高新技术股份有限公司 | Roll surface wear-resisting repair technology for cement roller press |
| CN103817484A (en) * | 2014-03-17 | 2014-05-28 | 沈阳哈维尔表面工程技术有限公司 | Restoring method used for single-tooth roller crushing mechanism of sintering machine |
| CN104384691A (en) * | 2014-11-14 | 2015-03-04 | 大连华锐重工起重机有限公司 | Device for processing rope grooves of coiling block by utilizing plasma gouging and processing method of device |
| CN205464765U (en) * | 2016-03-31 | 2016-08-17 | 广东省焊接技术研究所（广东省中乌研究院） | System is got rid of to outside of tubes flash butt welding welding seam burr rotation type plasma |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352223A (en) * | 2018-11-15 | 2019-02-19 | 安徽应流集团霍山铸造有限公司 | A kind of method that water cooling reduces repair welding area temperature |
| CN111055001A (en) * | 2020-01-03 | 2020-04-24 | 无锡市产品质量监督检验院 | Cement roller press surface additive manufacturing repair device and repair method thereof |
| CN111843143A (en) * | 2020-08-11 | 2020-10-30 | 成都飞匠智能科技有限公司 | Workpiece surface shaping method and system based on plasma air gouging |
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| CN108515258B (en) | 2020-06-26 |
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