CN203174158U - Purging device with liquid steel quenching part - Google Patents
Purging device with liquid steel quenching part Download PDFInfo
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- CN203174158U CN203174158U CN 201320154729 CN201320154729U CN203174158U CN 203174158 U CN203174158 U CN 203174158U CN 201320154729 CN201320154729 CN 201320154729 CN 201320154729 U CN201320154729 U CN 201320154729U CN 203174158 U CN203174158 U CN 203174158U
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- proportional valve
- pipeline
- flow meter
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Abstract
The utility model relates to a purging device with a liquid steel quenching part, which belongs to the technical field of automatic control of steel rolling. The purging device comprises two nozzles, two flow meters and two proportional valves, wherein a first flow meter is installed on a broadband steel purging pipeline, a second proportional valve is installed at the rear side of the first flow meter on the same pipeline, the tail end of the pipeline is divided into two sections to be respectively provided with a first broadband steel nozzle and a second broadband steel nozzle, and the two nozzles are right opposite to the upper parts of two sides of a band steel; the other pipeline is provided with a second flow meter and a first proportional valve, the tail end of the pipeline is provided with a first narrow-band steel nozzle and a second narrow-band steel nozzle, and the two nozzles are respectively arranged on the upper parts of two sides of the band steel; the first flow meter and the second flow meter are accessed to a first analog quantity input module through a data line, and the first proportional valve and the second proportional valve are connected to a second analog quantity output module; and the first analog quantity input module and the second analog quantity output module are installed in a procedural section PLC (programmable logic controller) cabinet of a cold-rolling PLC control chamber. The purging device has the advantages that the purging effect can be guaranteed, and the energy waste can be avoided.
Description
Technical field
The utility model belongs to automation of rolling control techniques field, and a kind of band molten steel limit portion blow device of quenching particularly is provided, and residual water stain the drying up of strip edge portion, avoids being with steel the scene of skidding to occur, and guarantees the steady running of production line.
Background technology
The technical process of cold rolled strip shrend section at present is: after the band steel enters the watch-quench tank water-cooled, enter the shrend squeezing roller with the temperature that is lower than 80 degrees centigrade, and drying blower fan oven dry again, cooled band steel directly enters the 4# tensioning roller behind deflector roll.But in the production process of reality, it is residual water stain to occur causing strip edge portion to still have because drying effect is undesirable, very easily produce skidding after the band steel enters the 4# bridle rolls, thereby cause excessive the causing completely of this section tension fluctuation to stop, have a strong impact on production efficiency and the quality product of cold rolling mill.
Summary of the invention
The purpose of this utility model is to provide a kind of band molten steel limit portion blow device of quenching, and guarantees when drying effect is undesirable, removes the water stain residual of strip edge portion effectively, prevents so causes production line problem out of service, improves the production efficiency of cold rolling line.
Main contents of the present utility model:
The width information of receiving belt steel also selects to use corresponding proportional valve control nozzle according to this, and wherein a cover proportional valve and nozzle are used for purging Ribbon Steel limit portion, and be another set of for the limit portion that purges wide steel strip, and the band steel that can satisfy different in width purges.
Judge the residual water yield according to strip width and travelling speed, calculate the pressurized air air quantity of required purging on this basis and regulate the air door aperture automatically, calculating is based on heat exchange principle, latent heat by quantity of residual and water can obtain purging the required total heat of this water yield, and the specific heat capacity according to compressed-air actuated temperature variation and air can obtain required compressed air require again.
Obtain the proportional valve aperture according to the air quantity of target air quantity and actual monitoring by PID control, the passing ratio valve regulation reaches institute's required airflow, and pressurized air blows to belt steel surface through proportional valve by the nozzle place of pipeline, removes residual water stain.
The utility model comprises the first analog quantity load module 1, second analog output module 2, first flow meter 3, second under meter 4, first proportional valve 5, second proportional valve 6, the first wide steel strip nozzle 7, the second wide steel strip nozzle 8, the first Ribbon Steel nozzle 9, the second Ribbon Steel nozzle 10.
The whole device of the utility model is positioned at outlet squeezing roller rear portion, stove district, and by drawing the two-way pipeline to this device on the pressurized air main pipe line in the cold rolling mill, wherein one the tunnel is used for wide steel strip is purged, and another road is used for Ribbon Steel and purges.Purge pipeline at wide steel strip first flow meter 3 these pipeline air flow quantitys of detection are installed, be positioned at first flow meter 3 rear sides at same pipeline and second proportional valve 6 be installed for regulating this pipeline air flow quantity, be divided into two sections at the end of pipeline the first wide steel strip nozzle 7 and the second wide steel strip nozzle 8 are housed respectively, these two nozzles are right against the top of band steel both sides, at a distance of 1700mm, distance band steel upper surface 50mm, portion purges to the wide steel strip limit; Second under meter 4 and first proportional valve 5 are installed on another road pipeline, at pipe end the first Ribbon Steel nozzle 9 and the second Ribbon Steel nozzle 10 are installed, two nozzles are respectively in the top of band steel both sides, at a distance of 1500mm, distance band steel upper surface 50mm, be used for Ribbon Steel is purged, first flow meter 3, second under meter 4 by data line insert the first analog quantity load module, 1, the first proportional valve 5, second proportional valve 6 is connected to second analog output module 2.The first analog quantity load module 1 and second analog output module 2 are installed in the procedure segment PLC cabinet of cold rolling PLC watch-keeping cubicle.
The utility model is provided with 2 cover nozzle, 2 proportional valves and 2 under meters, controls by procedure segment PLC system.By laying pipeline pressurized air is introduced 2 cover nozzles, by 2 proportional valve control apertures; But operator are reference tape steel specification and the manual control ratio valve of width on upper picture, and the pipeline of pressurized air by conducting, dries up strip edge portion is water stain in strip edge portion via nozzle ejection.
The benefit of present method is when band steel drying effect is bad, to utilize this strip edge portion blow device, it is water stain residual to guarantee effectively that strip edge portion does not have, and avoids the problem that causes production line normally to move thus, reduces stop frequency, enhance productivity, guarantee quality product.
Description of drawings (please the literal with the housing among the figure and label 1～10 assembly removes, and only stays label)
Fig. 1 is the structure iron of shrend limit portion blow device.Wherein, the first analog quantity load module 1, second analog output module 2, first flow meter 3, second under meter 4, first proportional valve 5, second proportional valve 6, the first wide steel strip nozzle 7, the second wide steel strip nozzle 8, the first Ribbon Steel nozzle 9, the second Ribbon Steel nozzle 10.
Embodiment
The utility model comprises the first analog quantity load module 1, second analog output module 2, first flow meter 3, second under meter 4, first proportional valve 5, second proportional valve 6, the first wide steel strip nozzle 7, the second wide steel strip nozzle 8, the first Ribbon Steel nozzle 9, the second Ribbon Steel nozzle 10.
Whole device is positioned at outlet squeezing roller rear portion, stove district, and by drawing the two-way pipeline to this device on the pressurized air main pipe line in the cold rolling mill, wherein one the tunnel is used for wide steel strip is purged, and another road is used for Ribbon Steel and purges.Purge pipeline at wide steel strip first flow meter 3 these pipeline air flow quantitys of detection are installed, be positioned at first flow meter 3 rear sides at same pipeline and second proportional valve 6 be installed for regulating this pipeline air flow quantity, be divided into two sections at the end of pipeline the first wide steel strip nozzle 7 and the second wide steel strip nozzle 8 are housed respectively, these two nozzles are right against the top of band steel both sides, at a distance of 1700mm, distance band steel upper surface 50mm, portion purges to the wide steel strip limit; Second under meter 4 and first proportional valve 5 are installed on another road pipeline, at pipe end the first Ribbon Steel nozzle 9 and the second Ribbon Steel nozzle 10 are installed, two nozzles are respectively in the top of band steel both sides, at a distance of 1500mm, distance band steel upper surface 50mm, be used for Ribbon Steel is purged, first flow meter 3, second under meter 4 by data line insert the first analog quantity load module, 1, the first proportional valve 5, second proportional valve 6 is connected to second analog output module 2.The first analog quantity load module 1 and second analog output module 2 are installed in the procedure segment PLC cabinet of cold rolling PLC watch-keeping cubicle.
1, erecting equipment
Pipe laying and the first wide steel strip nozzle 7, the second wide steel strip nozzle 8, the first Ribbon Steel nozzle 9, the second Ribbon Steel nozzle 10, first proportional valve 5, second proportional valve 6, first flow meter 3, second under meter 4, etc. equipment.The utility model comprises two under meters, two variable valve, and a cover PLC Controlling System, the analog quantity load module connects 2 under meters respectively, and analog output module connects 2 variable valve.
Pipe connection is arrived factory's compressed air pipeline
2, modeling
Measure the relation of actual quantity of residual and strip width and rolling line speed, measure flow and the air temperature variations value and the relation that purges the water yield of purging air, set up the mathematical model of quantity of residual and air quantity
3, coding
Carry out the PLC programdesign according to mathematical model, write sequence of control such as required purging air Wind Coverage Calculation and proportional valve PID adjusting, realize purging the function of quantity of residual
4, practical application test
With this device actual coming into operation when producing, detect applicable cases, and correlation parameter is carried out necessary adjustment, reach best effect, realize technical object, guarantee the stable of cold rolling production.
Claims (2)
1. band molten steel limit portion blow device of quenching, be characterised in that, comprise the first analog quantity load module (1), second analog output module (2), first flow meter (3), second under meter (4), first proportional valve (5), second proportional valve (6), the first wide steel strip nozzle (7), the second wide steel strip nozzle (8), the first Ribbon Steel nozzle (9), the second Ribbon Steel nozzle (10); Purge pipeline at wide steel strip first flow meter (3) is installed, be positioned at first flow meter (3) rear side at same pipeline and second proportional valve (6) is installed is divided into two sections at the end of pipeline the first wide steel strip nozzle (7) and the second wide steel strip nozzle (8) are housed respectively, these two nozzles are right against the top of being with the steel both sides; Second under meter (4) and first proportional valve (5) are installed on another road pipeline, at pipe end the first Ribbon Steel nozzle (9) and the second Ribbon Steel nozzle (10) are installed, two nozzles are respectively in the top of band steel both sides; First flow meter (3), second under meter (4) insert the first analog quantity load module (1) by data line, and first proportional valve (5), second proportional valve (6) are connected to second analog output module (2); The first analog quantity load module (1) and second analog output module (2) are installed in the procedure segment PLC cabinet of cold rolling PLC watch-keeping cubicle.
2. the band molten steel according to claim 1 limit portion blow device of quenching is characterised in that, whole device is positioned at outlet squeezing roller rear portion, stove district, by drawing the two-way pipeline to this device on the pressurized air main pipe line in the cold rolling mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154729 CN203174158U (en) | 2013-03-30 | 2013-03-30 | Purging device with liquid steel quenching part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154729 CN203174158U (en) | 2013-03-30 | 2013-03-30 | Purging device with liquid steel quenching part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203174158U true CN203174158U (en) | 2013-09-04 |
Family
ID=49070889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320154729 Expired - Lifetime CN203174158U (en) | 2013-03-30 | 2013-03-30 | Purging device with liquid steel quenching part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203174158U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268751A (en) * | 2015-11-30 | 2016-01-27 | 武汉钢铁(集团)公司 | Cold rolling emulsion purging method and purging system thereof |
| CN106480302A (en) * | 2015-08-26 | 2017-03-08 | 宝山钢铁股份有限公司 | Steel edge portion blowing device |
-
2013
- 2013-03-30 CN CN 201320154729 patent/CN203174158U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480302A (en) * | 2015-08-26 | 2017-03-08 | 宝山钢铁股份有限公司 | Steel edge portion blowing device |
| CN106480302B (en) * | 2015-08-26 | 2018-10-02 | 宝山钢铁股份有限公司 | Steel edge portion blowing device |
| CN105268751A (en) * | 2015-11-30 | 2016-01-27 | 武汉钢铁(集团)公司 | Cold rolling emulsion purging method and purging system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |