CN102671965B - Active airflow field controlled plate surface cleaning device for single stand cold rolling - Google Patents
Active airflow field controlled plate surface cleaning device for single stand cold rolling Download PDFInfo
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- CN102671965B CN102671965B CN201210135870.0A CN201210135870A CN102671965B CN 102671965 B CN102671965 B CN 102671965B CN 201210135870 A CN201210135870 A CN 201210135870A CN 102671965 B CN102671965 B CN 102671965B
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Abstract
The invention relates to an active airflow field controlled plate surface cleaning device for single stand cold rolling. The active airflow field controlled plate surface cleaning device for single stand cold rolling is arranged above band steel at the outlet of a rolling mill, and mainly comprises a band steel emulsion purging device, a dynamic sealing device and a negative pressure suction device; in the rolling process, the purging device serves as an airflow generation source to align a roller gap, and jets compressed air to the inlet side of the rolling mill to plug emulsion accumulated at the roller gap at the inlet on the inlet side of the rolling mill; and the negative pressure suction device controls the airflow direction in a sealed zone by adjusting the negative pressure strength and the position of a guide plate, reduces airflow reflection and turbulence, enhances a purging effect, plugs the emulsion on the inlet side of the rolling mill and avoids a defect that the emulsion is splashed or remained due to disordered purging airflow reflecting directions.
Description
Technical field
The invention belongs to cold rolling technology field, be specifically related to a kind of cold-rolling production process promoting cold-rolled products surface quality, be applied to various single stand cold mill unit.
Background technology
Single stand cold mill unit in process of production, owing to needing to lubricate the operation of rolling, make roll keep cooling and other reasons can use a large amount of emulsions, in order to avoid producing emulsion residue on finished strip surface, common way adopts large discharge compressed air to purge finished strip surface.In purge, when compressed air purge pressure lower time, cannot shutoff emulsion completely, cause emulsion residue serious; When compressed air purging pressure is excessive, can produce stronger air-flow reflection, due to milling train outlet space complex structure, reflected gas stream direction is mixed and disorderly, very easily produces the emulsion splashing residual defects caused due to air-flow reflection.It is very difficult that the method adopting compressed air to purge removes emulsion residue in the operation of rolling, and finished strip is difficult to reach product quality requirement.
For solving the problem, also having and adopting negative-pressure ward mode to replace the mode of compressed air purging to process the emulsion remained of belt steel surface.But, adopt the mode of negative-pressure ward very high to the tight requirements of suction hood, milling train inner space complex device various and also have the sports equipment such as roll, roller bending block not easily seal, therefore as the airtight of suction hood cannot be solved, then the method for negative-pressure ward is adopted can not to remove the residual emulsion of belt steel surface completely.And due in the operation of rolling, strip width alters a great deal, the vibration in band steel running is also difficult to avoid, and removes emulsion all to negative-pressure ward method and brings very large difficulty.Therefore, negative-pressure ward method is also difficult to solve rolled band steel surfactant emulsion liquid residue problem.Emulsion residue problem in single stand cold mill process perplexs modern cold rolling production all the time.
Summary of the invention
The technical problem to be solved in the present invention is: for purging in single stand cold mill process or aspirating the technical barrier that all thoroughly cannot solve emulsion residue, a kind of active air flow field control type single stand cold mill plate face cleaning device is provided, can by emulsion shutoff in the finite region of singlestandmill, and the emulsion caused due to air-flow reflection can be avoided to splash, the defect such as residual, drippage.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Active air flow field control type single stand cold mill plate face cleaning device, is characterized in that: be arranged at above the band steel of singlestandmill exit, mainly comprises coolant emulsion liquid blowing remover, negative suction system and roll dynamic seal (packing) plate; Coolant emulsion liquid blowing remover jet-impingement direction is just to roll gap direction; The negative pressure cavity that roll dynamic seal (packing) plate is arranged on negative suction system seals with top working roll dynamic Contact, and negative pressure cavity and roll dynamic seal (packing) plate all can advance along with the change in roller footpath or retreat; Negative pressure cavity is have the adjustable gas channel of the extended position of internal cavities, and the Single port of passage aims at roll gap direction and parallel with band steel upper surface, and the other end and negative pressure line interface connect and finally leads to negative pressure generating device; Negative suction system and roll dynamic seal (packing) plate, be with the gas collection space forming a base closed between steel, top working roll all the time; In the operation of rolling, blow device sprays compressed air to singlestandmill entrance side, the emulsion shutoff of being piled up at entrance roll gap place is at the entrance side of singlestandmill, negative suction system is by regulating suction strength and adjustable air flow passage extended position, realize air-flow strike angle in gas collection space, reduce air-flow reflection and turbulent flow, strengthen purging effect, also avoid the emulsion caused in a jumble owing to purging air-flow reflection direction to splash or residual defects at the entrance side of milling train effective for emulsion shutoff simultaneously.
By technique scheme, the bottom surface, exit of negative pressure cavity is arranged the telescopic flow guiding plate that can change negative pressure cavity gas channel extended position, telescopic flow guiding plate arranges to slide relative to negative pressure cavity on bottom surface and stretches out; The both sides, exit of negative pressure cavity arrange lateral adjustments plate respectively, and lateral adjustments plate is equipped with drive unit and can is separated along strip width direction under the effect of this device or closes up; Negative suction system is formed by dynamic seal (packing) plate and top working roll and seals; The external part of telescopic flow guiding plate and the relative position of coolant emulsion liquid blowing remover constant and do not affect the direction purging air-flow; All the time the gas collection space of a base closed is formed between negative suction system, roll dynamic sealing, band steel, working roll.
By technique scheme,: negative suction system is provided with the hydraulic cylinder consistent with the incline direction of negative pressure cavity, roll dynamic sealing, lateral adjustments plate, telescopic flow guiding plate are installed on negative pressure cavity, and can advance along with the change in roller footpath or retreat under the effect of hydraulic cylinder.
By technique scheme, negative pressure cavity is connected with negative pressure line; Negative suction system also comprises and to be arranged in negative pressure line, can to take out to negative pressure the control valve that porch, chamber suction strength regulates.
By technique scheme, metal slice head is equipped with in negative pressure cavity upper plate and the close position of top working roll, and the spacing of shovel head and working roll controls by hydraulic cylinder extension; Negative suction system is positioned at above the band steel of working roll, is installed on the one or both sides of single chassis multi-roll mill.
By technique scheme, band steel coolant emulsion liquid blowing remover is primarily of purging beam, nozzle, control valve, pipeline composition, many pipeline is arranged on purging beam with the form of branch, each pipeline is provided with the control valve of adjustable nozzles flow and pressure, nozzle is disposed in groups in alignmently and purges on beam, and the injector spacing in same group is less than the nozzle sets spacing of different group; Nozzle quantity is arranged according to the width of band steel.
By technique scheme, roll dynamic seal (packing) plate is rubber blanket.
By technique scheme, lateral adjustments plate drive unit is connected with two lateral adjustments plates by feed screw nut's formula transmission device; Drive leading screw to rotate by drive unit, drive the nut that lateral adjustments plate is installed to carry out transverse shifting.
This device main working process is: all arrange emulsified liquid injection gear to carry out emulsion injection at entrance or exit band steel upper and lower, because the emulsion in band steel lower surface and bottom working roll region can leave finished strip under the acting in conjunction of bottom working roll airflow field and gravitational field, product quality is not impacted, therefore, the emulsion in emphasis process band steel upper surface and top working roll region, emulsion processing procedure for band steel upper surface and top working roll region is: be with steel to be tied to the cleaning device place, active air flow field control type single stand cold mill plate face reaching exit by the roller of singlestandmill, milling train carries out emulsion injection by the emulsified liquid injection gear being arranged in its various places inside, the mode matched with air-flow occurring source and the negative suction system of steel coolant emulsion liquid blowing remover controls the airflow field of singlestandmill exit region, airflow field is made to flow smooth and easy and increase its action effect, by the entrance side of emulsion shutoff in singlestandmill roller system, simultaneously, due to the application of roll dynamic seal (packing) plate and telescopic flow guiding plate, to the gas collection space feasible region air-flow strike angle of base closed, the emulsion caused in a jumble owing to purging air-flow reflection direction is avoided to splash, and then promote the surface quality of finished strip.
This device is the airflow field principle utilizing band steel coolant emulsion liquid blowing remover and gas collector to be formed, be integrated as with negative suction system and purge air-flow and manufacture loop, telescopic flow guiding plate can also be utilized in this process to guide compressed-air actuated direction, eliminate rack outlet place owing to purging the compressed air turbulent flow phenomenon caused, avoid emulsion residue on the surface of band steel, and then promote the surface quality of finished strip; The control valve that negative suction system is arranged can with the control valve of band steel coolant emulsion liquid blowing remover with the use of, the pressure of aspiration circuit is regulated in real time according to the surface quality of outlet band steel, and the tolerance of blow device, compressed-air actuated consumption can be reduced like this, reduce production cost, also can reduce noise simultaneously.
This device has stronger versatility, and arrangement form similar in appearance to the stripper in general singlestandmill, and comprises the function that stripper has, and can be widely used in all kinds of single stand cold mill unit.
Accompanying drawing explanation
Fig. 1: active air flow field control type single stand cold mill plate face of the present invention cleaning device schematic diagram;
Fig. 2: coolant emulsion liquid blowing remover structural representation of the present invention;
Fig. 3: negative suction system structural representation (front view) of the present invention;
Fig. 4: negative suction system Local map of the present invention.
Description of reference numerals in each figure: 1 mill housing; 2 roller systems; 3 emulsified liquid injection gears; 4 band steel; 5 negative pressure adjusting devices; 6 negative-pressure pipelines; 7 negative suction systems; 8 coolant emulsion liquid blowing removers; 9 roller bending blocks; 10 roll chocks; 2-1 top working roll; 7-1 negative pressure cavity interface; 7-2 hydraulic cylinder; 7-3 track; 7-4 lateral adjustments plate; 7-5 drive unit; 7-6 leading screw; 7-7 dynamic seal (packing) plate; 7-8 telescopic flow guiding plate; 7-9 shovels head; 8-1 compressed-air atomizer; 8-2 air spray beam body; 8-3 pressure-regulating device; 8-4 compressed air line.
detailed description of the invention:
Below in conjunction with embodiment and accompanying drawing 1-4, the invention will be further described, but do not limit the present invention.
See Fig. 1-4: by active air flow field control type single stand cold mill plate face of the invention process cleaning device, configure above the band steel of milling train exit, mainly comprise coolant emulsion liquid blowing remover 8, negative pressure adjusting device 5, negative-pressure pipeline 6, negative suction system 7.In the milling train course of work, coolant emulsion liquid blowing remover 8 sprays compressed air to singlestandmill Way in, and the emulsion shutoff of being piled up at entrance roll gap place is at the entrance side of milling train; Negative suction system 7 connects negative pressure generating device by negative-pressure pipeline 6 and produces negative pressure, and regulate suction strength by negative pressure adjusting device 5, to realize air-flow strike angle in gas collection space, strengthen the active force of coolant emulsion liquid blowing remover 8, by the entrance side of effective for emulsion shutoff at milling train, and avoid the emulsion caused in a jumble owing to purging air-flow reflection direction to splash or residual defects simultaneously.
Blow device structural representation as shown in Figure 2.The coolant emulsion liquid blowing remover 8 being positioned at singlestandmill outlet is as air-flow occurring source with just to roll gap direction, and penetrate compressed air to inlet of rolling mill side spray, the emulsion shutoff of being piled up at entrance roll gap place is at the entrance side of milling train; Form air cushion at belt steel surface simultaneously, avoid rolling impurity to drop on finished strip surface.This device forms primarily of compressed-air atomizer 8-1, air spray beam body 8-2, pressure-regulating device 8-3, compressed air line 8-4, many compressed air line 8-4 is vertically set on air spray beam body 8-2 with the form of branch, each compressed air line 8-4 is provided with pressure-regulating device 8-3, compressed-air atomizer 8-1 is disposed on air spray beam body 8-2 in alignmently in groups, and the injector spacing in same group is less than the nozzle sets spacing of different group.The quantity of compressed-air atomizer 8-1 and the quantity of unlatching can be selected arbitrarily according to the width of band steel, flow and the pressure of each compressed-air atomizer 8-1 also regulate by pressure-regulating device 8-3, to accomplish when the flow of the speed of unit, product specification, emulsion changes not only to meet the demand of shutoff emulsion all the time but also can match with negative suction system 7 and go out the stable airflow field of interruption-forming airflow direction at milling train.
The roll dynamic seal (packing) plate 7-7 of heat resistant and wear resistant and top working roll 2-1 dynamic Contact are formed and seal.Roll dynamic seal (packing) plate 7-7 adopts elastomeric material, to avoid losing working roll.Dynamic seal (packing) plate 7-7 and band steel 4, negative suction system 7, form the gas collection space of relative closure between top working roll 2-1, be beneficial to the generation of airflow field, also can prevent the emulsion on entrance side and top from entering this relative closure space.
Negative suction system 7 primary structure is the negative pressure cavity that rectangular duct is formed, and the Single port of negative suction system 7 aims at roll gap direction and parallel with band steel upper surface, and another port is docked with negative-pressure pipeline 6, and negative-pressure pipeline 6 connects negative pressure generating device.The head of negative suction system 7 and roll dynamic seal (packing) plate 7-7, be with between steel 4, top working roll 2-1 and form a gas collection space substantially sealed all the time; Close to being with the position of steel, lateral adjustments plate 7-4 is installed at negative suction system 7, drive unit 7-5 enables adjustable plate 7-4 namely laterally move in the belt steel direction of motion by driving the rotation of leading screw 7-6, the band steel of different in width can be adapted to like this, enable airflow field keep best always.Negative suction system 7 is provided with the hydraulic cylinder 7-2 consistent with the incline direction of negative pressure cavity, roll dynamic seal (packing) plate, lateral adjustments plate, telescopic flow guiding plate are installed on negative pressure cavity, and can advance along with the change in roller footpath or retreat under the effect of hydraulic cylinder 7-2.
The installation site of negative suction system 7 is positioned at the position of usual milling train stripper, be positioned at the band steel top near working roll, can prevent the emulsion droplet on top from falling belt steel surface, the stripper in general milling train can be replaced, be installed on the one or both sides of single chassis multi-roll mill, simultaneously also can play the effect preventing broken belt curling round the roll, but it has negative pressure function again, can not as stripper hinder air flowing, reduce and purge effect.To be equipped with the position of roll contact at negative suction system 7 and shovel head 7-9, it can be made to move along track 7-3 by hydraulic cylinder 7-2 flexible and control the gap of shovel head 7-9 and top working roll 2-1, reach the effect preventing broken belt curling round the roll.
In the negative pressure cavity bottom surface exit activity of negative suction system 7, telescopic flow guiding plate 7-8 is set, after negative suction system 7 advances or retreats, can the manual adjustments telescopic flow guiding plate 7-8 length of stretching out make it remain and relative position between coolant emulsion liquid blowing remover 8 constant and do not affect the state purging beam airflow field, keep purging system to have stable airflow field.This gas collection space can also to be regulated in negative suction system 7 suction strength and utilize telescopic flow guiding plate 7-8 to adjust airflow direction by the negative pressure adjusting device 5 on negative-pressure pipeline 6, realize closed area air-flow strike angle, avoid the emulsion residue defect because reflected gas stream causes in a jumble, thus reach the object of clean belt steel surface.
The workflow of this device is as shown in Figure 1: all arrange emulsified liquid injection gear 3 to carry out emulsion injection at entrance or exit band steel upper and lower, because the emulsion in band steel lower surface and bottom working roll region can leave finished strip under the acting in conjunction of bottom working roll airflow field and gravitational field, product quality is not impacted, therefore, the emulsion in emphasis process band steel upper surface and top working roll region, emulsion processing procedure for band steel upper surface and top working roll region is: be with steel 4 successively by the cleaning device place, active air flow field control type singlestandmill plate face in roller system 2 arrival exit, the purging that air-flow occurring source with steel coolant emulsion liquid blowing remover 8 and negative suction system 7 match controls the airflow direction of milling train exit region with suction combination, in exit by the entrance side of emulsion shutoff at singlestandmill, simultaneously, due to the application of negative suction system 7 and roll dynamic seal (packing) plate 7-7, avoid the emulsion caused in a jumble owing to purging air-flow reflection direction to splash, and then promote the surface quality of finished strip.This device mainly utilizes airflow field flow principles, coolant emulsion liquid blowing remover 8 and negative suction system 7 are integrated as and purge air-flow and manufacture loop, telescopic flow guiding plate 7-8 can also be utilized to guide compressed-air actuated direction, eliminate milling train exit owing to purging the compressed air turbulent flow phenomenon formed, avoid emulsion residue on the surface of band steel, and then promote the surface quality of finished strip.Negative-pressure pipeline 6 is provided with negative pressure adjusting device 5, this adjusting device can with the pressure-regulating device 8-3 of coolant emulsion liquid blowing remover with the use of, the pressure of aspiration circuit is regulated in real time according to the surface quality of outlet band steel, and the tolerance of blow device, compressed-air actuated consumption can be reduced like this, reduce production cost, also can reduce noise simultaneously.
Above disclosedly be only preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalence change that the present patent application the scope of the claims is done, still belong to protection scope of the present invention.
Claims (9)
1. active air flow field control type single stand cold mill plate face cleaning device, is characterized in that: be arranged at above the band steel of singlestandmill exit, mainly comprises coolant emulsion liquid blowing remover, negative suction system and roll dynamic seal (packing) plate; Coolant emulsion liquid blowing remover jet-impingement direction is just to roll gap direction; The negative pressure cavity that roll dynamic seal (packing) plate is arranged on negative suction system seals with top working roll dynamic Contact, and negative pressure cavity and roll dynamic seal (packing) plate all can advance along with the change in roller footpath or retreat; Negative pressure cavity is have the adjustable gas channel of the extended position of internal cavities, and the Single port of passage aims at roll gap direction and parallel with band steel upper surface, and the other end and negative pressure line interface connect and finally leads to negative pressure generating device; Negative suction system and roll dynamic seal (packing) plate, be with the gas collection space forming a base closed between steel, top working roll all the time; In the operation of rolling, blow device sprays compressed air to singlestandmill entrance side, the emulsion shutoff of being piled up at entrance roll gap place is at the entrance side of singlestandmill, negative suction system is by regulating suction strength and adjustable air flow passage extended position, realize air-flow strike angle in gas collection space, reduce air-flow reflection and turbulent flow, strengthen purging effect, also avoid the emulsion caused in a jumble owing to purging air-flow reflection direction to splash or residual defects at the entrance side of milling train effective for emulsion shutoff simultaneously.
2. plate face according to claim 1 cleaning device, it is characterized in that: the bottom surface, exit of negative pressure cavity is arranged the telescopic flow guiding plate that can change negative pressure cavity gas channel extended position, telescopic flow guiding plate arranges to slide relative to negative pressure cavity on bottom surface and stretches out; The both sides, exit of negative pressure cavity arrange lateral adjustments plate respectively, and lateral adjustments plate is equipped with drive unit and can is separated along strip width direction under the effect of this device or closes up; Negative suction system is formed by dynamic seal (packing) plate and top working roll and seals; The external part of telescopic flow guiding plate and the relative position of coolant emulsion liquid blowing remover constant and do not affect the direction purging air-flow; All the time the gas collection space of a base closed is formed between negative suction system, roll dynamic sealing, band steel, working roll.
3. plate face according to claim 2 cleaning device, it is characterized in that: negative suction system is provided with the hydraulic cylinder consistent with the incline direction of negative pressure cavity, roll dynamic sealing, lateral adjustments plate, telescopic flow guiding plate are installed on negative pressure cavity, and can advance along with the change in roller footpath or retreat under the effect of hydraulic cylinder.
4., according to the plate face cleaning device one of claim 1-3 Suo Shu, it is characterized in that: negative pressure cavity is connected with negative pressure line; Negative suction system also comprises and to be arranged in negative pressure line, can to take out to negative pressure the control valve that porch, chamber suction strength regulates.
5. according to the plate face cleaning device one of claim 1-3 Suo Shu, it is characterized in that: metal slice head is equipped with in negative pressure cavity upper plate and the close position of top working roll, and the spacing of shovel head and working roll controls by hydraulic cylinder extension; Negative suction system is positioned at above the band steel of working roll, is installed on the one or both sides of single chassis multi-roll mill.
6. plate face according to claim 4 cleaning device, is characterized in that: metal slice head is equipped with in negative pressure cavity upper plate and the close position of top working roll, and the spacing of shovel head and working roll controls by hydraulic cylinder extension; Negative suction system is positioned at above the band steel of working roll, is installed on the one or both sides of single chassis multi-roll mill.
7. the plate face cleaning device according to one of claim 1-3 or 6, it is characterized in that: band steel coolant emulsion liquid blowing remover is primarily of purging beam, nozzle, control valve, pipeline composition, many pipeline is arranged on purging beam with the form of branch, each pipeline is provided with the control valve of adjustable nozzles flow and pressure, nozzle is disposed in groups in alignmently and purges on beam, and the injector spacing in same group is less than the nozzle sets spacing of different group; Nozzle quantity is arranged according to the width of band steel.
8. plate face according to claim 7 cleaning device, is characterized in that: roll dynamic seal (packing) plate is rubber blanket.
9. plate face according to claim 8 cleaning device, is characterized in that: lateral adjustments plate drive unit is connected with two lateral adjustments plates by feed screw nut's formula transmission device; Drive leading screw to rotate by drive unit, drive the nut that lateral adjustments plate is installed to carry out transverse shifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135870.0A CN102671965B (en) | 2012-05-04 | 2012-05-04 | Active airflow field controlled plate surface cleaning device for single stand cold rolling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135870.0A CN102671965B (en) | 2012-05-04 | 2012-05-04 | Active airflow field controlled plate surface cleaning device for single stand cold rolling |
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| CN102671965A CN102671965A (en) | 2012-09-19 |
| CN102671965B true CN102671965B (en) | 2015-01-28 |
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| CN201210135870.0A Active CN102671965B (en) | 2012-05-04 | 2012-05-04 | Active airflow field controlled plate surface cleaning device for single stand cold rolling |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209326B (en) * | 2014-09-10 | 2016-09-21 | 中冶南方工程技术有限公司 | Emulsion partition apparatus in smooth double cold mill complex |
| CN117918909B (en) * | 2024-03-22 | 2024-06-04 | 湘潭市中心医院 | Hitching type suction device for surgical operation |
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| US4691549A (en) * | 1981-12-24 | 1987-09-08 | United Engineering Rolling Mills, Inc. | Apparatus for removing liquid from a strip in a rolling mill and method thereof |
| CN101080288A (en) * | 2004-12-14 | 2007-11-28 | Sms迪马格股份公司 | Method and device for strip blowing-off at the exit from a rolling mill for the production of a spot-free and clean rolled strip |
| CN101780485A (en) * | 2009-12-30 | 2010-07-21 | 一重集团大连设计研究院有限公司 | Emulsion cleaning device |
| CN102284519A (en) * | 2011-08-18 | 2011-12-21 | 中冶南方工程技术有限公司 | Water mist leveling system in cold-rolling wet leveling production |
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| US577515A (en) * | 1897-02-23 | Car-brake | ||
| JPS53131261A (en) * | 1978-04-28 | 1978-11-15 | Hitachi Ltd | Rolling mill |
| DE19535168A1 (en) * | 1995-09-22 | 1997-03-27 | Schloemann Siemag Ag | Device for keeping cold strip dry in the outlet of cold rolling and strip lines |
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- 2012-05-04 CN CN201210135870.0A patent/CN102671965B/en active Active
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|---|---|---|---|---|
| US4691549A (en) * | 1981-12-24 | 1987-09-08 | United Engineering Rolling Mills, Inc. | Apparatus for removing liquid from a strip in a rolling mill and method thereof |
| CN101080288A (en) * | 2004-12-14 | 2007-11-28 | Sms迪马格股份公司 | Method and device for strip blowing-off at the exit from a rolling mill for the production of a spot-free and clean rolled strip |
| CN101780485A (en) * | 2009-12-30 | 2010-07-21 | 一重集团大连设计研究院有限公司 | Emulsion cleaning device |
| CN102284519A (en) * | 2011-08-18 | 2011-12-21 | 中冶南方工程技术有限公司 | Water mist leveling system in cold-rolling wet leveling production |
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