CN102284518A - Water mist spraying device used in cold-rolling wet leveling production - Google Patents
Water mist spraying device used in cold-rolling wet leveling production Download PDFInfo
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- CN102284518A CN102284518A CN2011102376114A CN201110237611A CN102284518A CN 102284518 A CN102284518 A CN 102284518A CN 2011102376114 A CN2011102376114 A CN 2011102376114A CN 201110237611 A CN201110237611 A CN 201110237611A CN 102284518 A CN102284518 A CN 102284518A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to a water mist spraying device used in a cold-rolling wet leveling production, which is characterized by comprising an upper water mist spraying beam, a lower water mist spraying beam, an upper mist spraying device and a lower mist spraying device, wherein one upper water mist spraying beam and one lower water mist spraying beam are arranged at the inlet side of a wet leveling mill respectively; the upper water mist spraying beam is located above a strip steel passing line and the lower water mist spraying beam is located below the strip steel passing line; the upper mist spraying device is disposed on the upper water mist spraying beam and the lower mist spraying device is disposed on the lower water mist spraying beam; the upper mist spraying device comprises upper nozzles, an upper air header pipe and an upper leveling liquid header pipe; the orifices of all the upper nozzles face a roll gap between an upper working roll and an upper supporting roll. The device changes the traditional direct spray of leveling liquid and replaces the direct spray of leveling liquid by the mist spray of leveling liquid, thereby solving the problem of residual leveling spot of the leveling liquid brought by incomplete blowing.
Description
Technical field
The invention belongs to the cold rolling levelling technical field, be specifically related to a kind of atomized water spray device that is used for cold rolling wet smooth production, can be applicable to all kinds of cold rolling levelling units.
Background technology
The smooth production of tradition comprises does smooth, wet smooth two kinds of processes.Dried flattening process can produce a large amount of dust in formation process, cause the finished strip surface contamination.Wet smooth employing is arranged a wet smooth spray beam at entrance side, arrange 8～12 nozzles on the spray beam, the smooth liquid of the about 108～168L/h flow of each nozzle ejection sprays a large amount of smooth liquid on working roll and band steel, the dust that produces in the flushing formation process.After but a large amount of smooth liquid are ejected into belt steel surface, can bring problems such as the smooth back smooth liquid of belt steel surface is residual.Need on smooth, to arrange the multistage sweeping beam, blow sordid problem, cause problems such as smooth spot to belt steel surface but belt steel surface can occur.
As shown in Figure 1, the conventional wet flattening process in four roller planisher bodies 1, is depressed cylinder 2 and is pressed upper support roller 3 in smooth production, and upper support roller 3 compresses top working roll 4, and top working roll 4 transmissions drive upper support roller 3 and rotate together being with steel 6 to carry out skin pass rolling.In smoothing and rolling process, between the top working roll 4 of planisher inlet and band steel 6, spray smooth liquid by last smooth liquid spray beam 5, compressed air by the planisher outlet purges the big flow compressed air of spray beam 7 injections again, to remove the residual smooth liquid of belt steel surface.
Therefore, all there is technological deficiency in the cold rolling wet smooth smooth liquid spray technology of tradition aspect the product surface quality control.
Summary of the invention
The object of the present invention is to provide a kind of atomized water spray device that is used for cold rolling wet smooth production, this device changes traditional smooth liquid direct injection, change the smooth liquid of direct injection into atomized spray smooth liquid, raw tape comes residual smooth spot problem because purge not thereby solve smooth liquid.
For achieving the above object, technical scheme of the present invention is: the atomized water spray device that is used for cold rolling wet smooth production, it is characterized in that it comprises the atomized water spray beam, descends the atomized water spray beam, goes up the atomized spray device, descends vaporific injection apparatus, go up the entrance side that atomized water spray beam and following atomized water spray beam are arranged in wet planisher for one, last atomized water spray beam is positioned at the top of band steel by line, and following atomized water spray beam is positioned at the below of band steel by line; Last atomized water spray beam is provided with the atomized spray device, and following atomized water spray beam is provided with down vaporific injection apparatus;
The described atomized spray device of going up comprises top nozzle, goes up air header, goes up smooth liquid house steward; Last air header and last smooth liquid house steward are along the axis arranged of top working roll, last air header and last smooth liquid house steward all are fixed on the atomized water spray beam, the one end sealing of last air header, the other end of last air header is connected with last air delivery pipe, go up smooth liquid house steward's end sealing, the other end of going up smooth liquid house steward is connected with last smooth liquid carrier pipe; The number of described top nozzle is 7～11, the roll gap of the spout of all top nozzles between top working roll and top backing up roll; The air input of top nozzle is in charge of with last air header by last air and is connected, and the smooth liquid input of top nozzle is in charge of with last smooth liquid house steward by last smooth liquid and is connected, and top nozzle is provided with mixing valve;
Described vaporific injection apparatus down comprises nozzle, following air header, following smooth liquid house steward down; Following air header and following smooth liquid house steward are along the axis arranged of bottom working roll, following air header and following smooth liquid house steward all are fixed on down on the atomized water spray beam, the one end sealing of following air header, the other end of following air header is connected with following air delivery pipe, smooth liquid house steward's end sealing down, following smooth liquid house steward's the other end is connected with following smooth liquid carrier pipe; The described number of nozzle down is 7～11, and all are the roll gap of spout between bottom working roll and lower support roller of nozzle down; The air input of following nozzle is in charge of with following air header by following air and is connected, and the smooth liquid input of following nozzle is in charge of with following smooth liquid house steward by following smooth liquid and is connected, and following nozzle is provided with down mixing valve.
Beneficial effect of the present invention: this device changes traditional smooth liquid direct injection, changes the smooth liquid of direct injection into atomized spray smooth liquid.Owing to adopt the aerosol injection structure, not only can reduce pollution, promote smooth product surface quality, raw tape comes residual smooth spot problem because purge not to have solved smooth liquid; Can also save the consumption of smooth liquid greatly, fully reduce the production cost of smooth operation.After adopting the aerosol spray regime simultaneously, it is residual to have reduced belt steel surface, arranges thereby can reduce even cancel to purge, and reduces compressed air consumption, reduces the energy consumption of smooth operation.
Description of drawings
Fig. 1 is the smooth injection schematic diagram of conventional wet.
Fig. 2 is the schematic diagram of atomized water spray device of the present invention present position.
Fig. 3 is the structural representation of atomized spray device in the present invention.
Fig. 4 is the structural representation of top nozzle of the present invention.
Among the figure: 1-four roller planisher bodies; 2-depresses cylinder; 3-upper support roller; The 4-top working roll; The last wet smooth spray beam of 5-; 6-is with steel; 7-compressed air purges spray beam; The last atomized water spray beam of 8-; The 9-top nozzle; The last mixing valve of 10-; The last air header of 11-; The last smooth liquid house steward of 12-, the last air delivery pipe of 13-, the last smooth liquid carrier pipe of 14-.Arrow among the figure is represented rolling direction.
The specific embodiment
As Fig. 2, Fig. 3 and shown in Figure 4, the atomized water spray device that is used for cold rolling wet smooth production, it comprises atomized water spray beam 8, descends the atomized water spray beam, goes up the atomized spray device, descends vaporific injection apparatus, go up the entrance side that atomized water spray beam 8 and following atomized water spray beam are arranged in wet planisher (as four roller planishers) for one, last atomized water spray beam 8 is arranged in the top (position at the band steel place of figure level of band steel by line, for the band steel passes through line), following atomized water spray beam is positioned at the below of band steel by line; Last atomized water spray beam 8 is provided with the atomized spray device, and following atomized water spray beam is provided with down vaporific injection apparatus;
The described atomized spray device of going up comprises top nozzle 9, goes up air header 11, goes up smooth liquid house steward 12; Last air header 11 and the axis arranged (length direction that be house steward with the length direction of top working roll consistent) of last smooth liquid house steward 12 along top working roll 4, last air header 11 and last smooth liquid house steward 12 all are fixed on the atomized water spray beam 8, the one end sealing of last air header 11, the other end of last air header 11 be connected with last air delivery pipe 13 (go up air delivery pipe the air source is provided), go up smooth liquid house steward's 12 end sealing, the other end of going up smooth liquid house steward 12 be connected with last smooth liquid carrier pipe 14 (go up smooth liquid carrier pipe smooth liquid is provided); The number of described top nozzle 9 is 7～11 (concrete number is determined as required, and is uniform), the roll gap of the spout of all top nozzles 9 between top working roll 4 and top backing up roll 3; The air input of top nozzle 9 is in charge of with last air header 11 by last air and is connected, the smooth liquid input of top nozzle 9 is in charge of with last smooth liquid house steward 12 by last smooth liquid and is connected, top nozzle 9 is provided with mixing valve 10 (go up mixing valve and be used to regulate the air that flows in the top nozzle 9 and the flow of smooth liquid, also can be described as control valve);
Described vaporific injection apparatus down comprises nozzle, following air header, following smooth liquid house steward down; Following air header and the axis arranged (length direction that be house steward with the length direction of bottom working roll consistent) of following smooth liquid house steward along bottom working roll, following air header and following smooth liquid house steward all are fixed on down on the atomized water spray beam, the one end sealing of following air header, the other end of following air header be connected with following air delivery pipe (following air delivery pipe provides the air source), down smooth liquid house steward's end sealing, following smooth liquid house steward's the other end with descend smooth liquid carrier pipe be connected (following smooth liquid carrier pipe provides smooth liquid); The described number of nozzle down is 7～11, and all are the roll gap of spout between bottom working roll and lower support roller of nozzle down; The air input of following nozzle is in charge of with following air header by following air and is connected, the smooth liquid input of following nozzle is in charge of with following smooth liquid house steward by following smooth liquid and is connected, following nozzle is provided with down mixing valve (following mixing valve is used to regulate the interior air of the following nozzle of inflow and the flow of smooth liquid, also can be described as control valve).
The atomized water spray method of smooth liquid in the cold rolling wet smooth production, it comprises the steps: 1) at the entrance side of wet planisher atomized water spray device (or claiming aerosol injection apparatus), the roll gap of the spout of the nozzle of atomized water spray device between working roll and backing roll are set; Nozzle is provided with air input, smooth liquid input, and nozzle is provided with the mixing valve that is used to regulate air mass flow and smooth flow quantity;
2) when wet planisher skin pass rolling begins, to nozzle input compressed air and smooth liquid, open and regulate mixing valve, making the smooth flow quantity that flows into each nozzle is 10～44.7L/h (smooth liquid is existing), and the air mass flow that flows into each nozzle is 5.2～13m
3/ h, smooth liquid and compressed air mix at the nozzle place, and spray with aerosol by the spout of nozzle; When skin pass rolling finishes, stop the conveying of compressed air and smooth liquid, close mixing valve.
Step 2) is specially: when wet planisher skin pass rolling begins, last air delivery pipe and following air delivery pipe insert compressed air, and (air pressure is 1.5～5.5bar), go up smooth liquid carrier pipe and feed smooth liquid with following smooth liquid carrier pipe, open the last mixing valve 10 on the top nozzle 9, the following mixing valve on the following nozzle, the smooth flow quantity of each top nozzle, following nozzle is 10～44.7L/h, and the air mass flow of each top nozzle, following nozzle is 5.2～13m
3/ h, smooth liquid and compressed air are located to mix at nozzle (top nozzle, following nozzle), and spray with aerosol by the spout of nozzle; Aerosol fully encases the dust that produces in the formation process, and prevent that dust fills the air in the smoothing and rolling process everywhere, pollute working roll and belt steel surface, and lubricated working roll roll surface, to prolong the retention time of roll surface roughness; When skin pass rolling finishes, stop the conveying of compressed air and smooth liquid, close mixing valve.
Experiment: by rolling 10 hours contrast experiments of continuous formation.Adopt method of the present invention, residual smooth spot does not appear in belt steel surface.And the smooth injection method of conventional wet, the smooth spot of small amount of residual appears in belt steel surface.Illustrate and adopt the aerosol spray regime, not only can reduce pollution, promote smooth product surface quality that raw tape comes residual smooth spot problem because purge not to have solved smooth liquid.
In order to satisfy the demand of different flattening process speed, by control air pressure and smooth flow quantity, the size of water droplet is fully pounced on and is caught the smooth dust that flies out with friction speed in the control water smoke.
It is considered herein that in wet smooth production process, the main effect of smooth liquid is not lubricated and cooling, but cleans a large amount of dust and the lubricated roll that produces in the smooth production process.
Claims (1)
1. the atomized water spray device that is used for cold rolling wet smooth production, it is characterized in that it comprises atomized water spray beam (8), descends the atomized water spray beam, goes up the atomized spray device, descends vaporific injection apparatus, go up the entrance side that atomized water spray beam (8) and following atomized water spray beam are arranged in the planisher that wets for one, last atomized water spray beam (8) is positioned at the top of band steel by line, and following atomized water spray beam is positioned at the below of band steel by line; Last atomized water spray beam (8) is provided with the atomized spray device, and following atomized water spray beam is provided with down vaporific injection apparatus;
The described atomized spray device of going up comprises top nozzle (9), goes up air header (11), goes up smooth liquid house steward (12); Last air header (11) and last smooth liquid house steward (12) are along the axis arranged of top working roll (4), last air header (11) and last smooth liquid house steward (12) all are fixed on the atomized water spray beam (8), the one end sealing of last air header (11), the other end of last air header (11) is connected with last air delivery pipe (13), go up smooth liquid house steward's (12) end sealing, the other end of going up smooth liquid house steward (12) is connected with last smooth liquid carrier pipe (14); The number of described top nozzle (9) is 7～11, the roll gap of the spout of all top nozzles (9) between top working roll (4) and top backing up roll (3); The air input of top nozzle (9) is in charge of with last air header (11) by last air and is connected, and the smooth liquid input of top nozzle (9) is in charge of with last smooth liquid house steward (12) by last smooth liquid and is connected, and top nozzle (9) is provided with mixing valve (10);
Described vaporific injection apparatus down comprises nozzle, following air header, following smooth liquid house steward down; Following air header and following smooth liquid house steward are along the axis arranged of bottom working roll, following air header and following smooth liquid house steward all are fixed on down on the atomized water spray beam, the one end sealing of following air header, the other end of following air header is connected with following air delivery pipe, smooth liquid house steward's end sealing down, following smooth liquid house steward's the other end is connected with following smooth liquid carrier pipe; The described number of nozzle down is 7～11, and all are the roll gap of spout between bottom working roll and lower support roller of nozzle down; The air input of following nozzle is in charge of with following air header by following air and is connected, and the smooth liquid input of following nozzle is in charge of with following smooth liquid house steward by following smooth liquid and is connected, and following nozzle is provided with down mixing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102376114A CN102284518A (en) | 2011-08-18 | 2011-08-18 | Water mist spraying device used in cold-rolling wet leveling production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102376114A CN102284518A (en) | 2011-08-18 | 2011-08-18 | Water mist spraying device used in cold-rolling wet leveling production |
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| CN102284518A true CN102284518A (en) | 2011-12-21 |
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| CN2011102376114A Pending CN102284518A (en) | 2011-08-18 | 2011-08-18 | Water mist spraying device used in cold-rolling wet leveling production |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311541A (en) * | 2018-04-04 | 2018-07-24 | 包头钢铁（集团）有限责任公司 | The control method of leveling precision ejection assemblies and leveling precision ejection assemblies |
| CN112139289A (en) * | 2020-09-08 | 2020-12-29 | 鞍钢股份有限公司 | Method for eliminating splash of photofinishing liquid |
| CN114719171A (en) * | 2022-04-18 | 2022-07-08 | 上海华峰铝业股份有限公司 | Lubricating device and method for pinch roll and hot rolling mill |
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|---|---|---|---|---|
| JPS5674303A (en) * | 1979-11-22 | 1981-06-19 | Nisshin Steel Co Ltd | Temper rolling method for steel strip |
| JPS60227906A (en) * | 1984-04-24 | 1985-11-13 | Sumitomo Metal Ind Ltd | Temper rolling device |
| JPH021205A (en) * | 1988-03-14 | 1990-01-05 | Mitsubishi Electric Corp | Pot |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311541A (en) * | 2018-04-04 | 2018-07-24 | 包头钢铁（集团）有限责任公司 | The control method of leveling precision ejection assemblies and leveling precision ejection assemblies |
| CN112139289A (en) * | 2020-09-08 | 2020-12-29 | 鞍钢股份有限公司 | Method for eliminating splash of photofinishing liquid |
| CN114719171A (en) * | 2022-04-18 | 2022-07-08 | 上海华峰铝业股份有限公司 | Lubricating device and method for pinch roll and hot rolling mill |
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Application publication date: 20111221 |