CN201136046Y - Cleaning plant for double-roller thin band continuous casting roller surface - Google Patents
Cleaning plant for double-roller thin band continuous casting roller surface Download PDFInfo
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- CN201136046Y CN201136046Y CNU2007200769921U CN200720076992U CN201136046Y CN 201136046 Y CN201136046 Y CN 201136046Y CN U2007200769921 U CNU2007200769921 U CN U2007200769921U CN 200720076992 U CN200720076992 U CN 200720076992U CN 201136046 Y CN201136046 Y CN 201136046Y
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- roller
- roll surface
- cleaning
- surface cleaning
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Abstract
The utility model relates to a double-roll thin belt continuous casting roll surface cleaning device, which comprises at least four roll surface cleaning rolls and a driving mechanism, wherein, every two of the roll surface cleaning rolls are respectively arranged at one side of a roll surface of two crystal rolls of a double-roll thin belt continuous casting machine; roll shapes of the two roll surface cleaning rolls at the same side are different; the roll surface cleaning rolls are pushed to or divorced from crystal roll surfaces by the driving mechanism; the driving mechanism drives the roll surface cleaning rolls to rotate. The roll surface cleaning rolls are metal or plant brush rolls, and brass wires or heat-resistant plant palm fur are adopted to be clamped in a steel trough to be winded and connected to a core shaft. The shapes of two cleaning rolls at the same side of the crystal rolls are different, and application effects are different. The cleaning rolls with different shapes are applied to adapt roll shapes according to changes of the roll shapes of the crystal rolls, and the roll surface is uniformly cleaned. During the casting process of thin belt continuous casting, the use efficiency of the thin belt continuous casting cleaning device can be increased; good use effect can be obtained; the thermal coefficient of the roll surface is uniform; and then the productivity is increased; the quality of casting belts is increased; the use cost of the roll surface cleaning device is reduced.
Description
Technical field
The utility model relates to continuous casting installation for casting, particularly a kind of cleaning twin-roll thin strip concasting roller surface device.
Background technology
The twin-roll thin strip continuous casting technology is different with traditional continuous casing, and this method need not passed through the multiple tracks hot-rolled process, can simplify the strip production technology greatly and reduce equipment investment.In addition, because the setting time of metal is shorter in the whole production process, so the intensity of the refinement of thin strap continuous casting product grains, material, toughness percentage elongation increase, setting rate also helps suppressing elements segregation soon simultaneously.
The subject matter that present this technology exists:
It is not fully up to expectations that quality is deposited in the Cast Strip; And the more single steel grade of product and specification are restricted.
Because the use cost of some crucial auxiliary equipment is too high, the production cost advantage of unit Cast Strip is not obvious.
Because the molten steel of its melting is very fast in the cooling velocity of crystallization roller roll surface,, influences the heat conduction intensity of crystallization roller, and then the surface, Cast Strip is cracked so have a lot of metal oxides or other impurity can separate out very soon and cohere on crystallization roller roll surface.So must clean out these impurity particles simultaneously, be one of key technology of guaranteeing thin strap continuous casting Cast Strip quality in casting.
All use the metal brush roll to carry out the roll surface cleaning on most of external thin strip continuous casting devices.The form of brush roll is varied, and the method that acts on crystallization roller roll surface is also different, and purpose all is to utilize brush roll can clear up less foreign material particle.
In thin strap continuous casting is produced, because molten steel solidifies in the molten bath that two counterrotating crystallization roller and side seal boards are surrounded and form the Cast Strip at the minimum clearance place of crystallization roller, so very complicated thermal stress deformation can take place in the crystallization roller in casting cycle, for eliminate the thermal deformation of crystallization roller to casting strip quality particularly with the influence of shape, adopt the crystallization roller that has roll forming in the production usually.
As the disclosed a kind of roll surface cleaning plant of Chinese patent application 200420107544.x, its use be that metallic spatula is adjacent to roll surface scraping roll surface residue, utilize the spring at scraper rear portion that pressure is provided.This method is violent to crystallization roller roll surface wear, and is subjected to structural limitations and can not clears up the small metal oxide of roll surface.
Also just like Chinese patent application number 200610025066.1 disclosed cleaning plants, the cleaning roller of its use all can not be adjusted the position or the shape of cleaning plant according to roll forming, so after the crystallization roller deforms, be merely able to increase the contact quality of roller hair and crystallization roller by the drafts that strengthens cleaning plant, cleaning effect is bad, also than being easier to wearing and tearing, use cost is than higher for cleaning roller.
Summary of the invention
The purpose of this utility model provides a kind of cleaning twin-roll thin strip concasting roller surface device, in the thin strap continuous casting casting cycle, can improve the service efficiency of thin strap continuous casting cleaning plant, obtain good result of use, make the roll surface thermal conductivity factor even, and then boost productivity, improve casting strip quality, and reduce the use cost of roll surface cleaning plant.
For achieving the above object, the technical solution of the utility model is:
A kind of cleaning twin-roll thin strip concasting roller surface device comprises, at least four roll surface cleaning rollers are installed on roll surface one side of two crystallization rollers of dual-roller thin-band conticaster respectively in twos; Two roll surface cleaning roller roll forming differences of homonymy; Described roll surface cleaning roller is pushed or is broken away to the driving mechanism of crystallization roller roll surface and the rotation of roll surface cleaning roller.
Again, the driving mechanism of described every roll surface cleaning roller comprises support dolly, hydraulic cylinder, servomotor; Support dolly carrying roll surface cleaning roller, servomotor, and connect hydraulic cylinder, servomotor connects cleaning roller
Servomotor is the variable-frequency motor of controlling separately.
Described roll surface cleaning roller is metal or vegetable hair brush roll.
Described roll surface cleaning roller employing copper wire or heat-resisting plant palm fiber are clipped in to twine in the steel tank and are bound up on the mandrel.
Described roll surface cleaning roller is pressed on the roller core shaft one by one for copper wire or palm fiber are made into disk in steel tank.
Described copper wire specification is 0.15～0.2mm.
In addition, the shape difference of two cleaning rollers of crystallization roller homonymy, effect difference.At the situation of change of crystallization roller roll forming, use difform cleaning roller to adapt to roll forming, more uniformly roll surface is cleared up.
Described roll surface cleaning roller roll surface roll forming is plain-barreled roll or arcs of recesses or convex.
Described roll surface cleaning roller roll surface is that the middle part is that groove is respectively established in plane, both sides.
One side of each crystallization roller of dual-roller thin-band conticaster is respectively installed two or many roll surface cleaning rollers, be used for clearing up impurity such as the refractory material oxide that adheres on the roll surface and metal oxide, cleaning roller is pushed the crystallization roller to and is pressed close to roll surface during casting operation, cleaning roller rotation direction and crystallization roller direction of rotation.
The thin strap continuous casting process characteristic has determined that its crystallization roller can be different from the roll forming of the stabilization sub stage of casting at the roll forming at casting initial stage, because the crystallization roller integral body of the stabilization sub stage of casting reaches thermal equilibrium state, so the roll forming of crystallization roller can be stablized.
Begin to be poured into the casting stabilization sub stage, use cleaning roller 1 to be adjacent to the crystallization roller and carry out the roll surface cleaning, the roll forming of cleaning roller 1 is in contrast to the initial roll forming of crystallization roller, and cleaning roller is not devoted oneself to work for 2 this moments;
Stablize the casting stage until the casting end, use 2 pairs of crystallization rollers of cleaning roller to clear up, cleaning roller 1 breaks away from crystallization roller roll surface at this moment, and the roll forming of cleaning roller 2 is in contrast to the roll forming in thermally-stabilised stage of crystallization roller;
The shape difference of two cleaning rollers of crystallization roller homonymy, the effect difference.At the situation of change of crystallization roller roll forming, use difform cleaning roller to adapt to roll forming, more uniformly roll surface is cleared up.
The unit pressure that cleaning roller 1 acts on the crystallization roller is 0.1MPa, and the drafts of cleaning roller 2 is less than the drafts of cleaning roller 1, the radius swell increment size that the difference of both drafts equals the crystallization roller after being heated, but both unit pressures are identical.
The criterion of casting stabilization sub stage is to utilize the tape thickness detector that is installed in casting machine band outlet back to detect data in real time to judge, after in detecting 5% scope that the tape thickness deviation enters into tape thickness, system thinks that the crystallization roller is near thermal equilibrium state, be judged to be the casting stable state this moment, cleaning roller 1 is lifted, and cleaning roller 2 comes into operation.
If detecting actual temperature, crystallization roller roll surface surpasses design temperature then the rotary speed of corresponding increase cleaning roller, on the contrary the rotary speed of the cleaning roller that then slows down, and velocity variations speed and temperature deviation are directly proportional.The power of every cleaning roller is provided by independent variable-frequency motor, and can be according to the rotary speed of roll surface temperature situation adjustment cleaning brush roll.
At the crystallization roller of different operating modes, hot-rolling shape is different, and under the different situation of crystallization roller inner case, the roll forming when reaching stable state in the casting cycle can change a lot, so the profile that roll surface is cleared up with brush roll also needs corresponding change.
Major advantage of the present utility model is:
Roll forming at different thin strap continuous casting casting work stage crystallization rollers changes, and uses difform cleaning brush roll to carry out the roll surface cleaning targetedly, can improve the roll surface cleaning quality, improves cleaning efficiency, and reduces the wearing and tearing of crystallization roller and cleaning roller brush.
One of judge condition that the employing roll surface temperature is cleared up as roll surface is rationally regulated the speed that the roll surface cleaning roller is brushed, and is implemented in the function of line traffic control roll surface cleaning quality.
The most roll surface adhesive in the operating position of cleaning roller are cooled off, and also are beneficial to peeling off of adhesive simultaneously.
Adopt softer metallic roll hair or plant palm fiber to be beneficial to cleaning roll surface adhesive, the minimizing crystallization roller roll surface wear degree that can try one's best little simultaneously.
Use the thermal conductivity factor that the utility model can significantly improve the crystallization roller, it is shorter that the crystallization roller reaches thermally equilibrated time ratio, can reach the casting stable state rapidly, improves the crystallization roller face temperature homogeneity.
Description of drawings
Fig. 1 is the structural representation of the utility model roll surface cleaning roller;
Fig. 2 is the utility model user mode schematic diagram;
Fig. 3 is initial clean-up phase crystallization roller and roll forming schematic diagram of the present utility model;
Fig. 4 is normal clean-up phase crystallization roller and roll forming schematic diagram of the present utility model.
The specific embodiment
Referring to Fig. 1, Fig. 2, cleaning twin-roll thin strip concasting roller surface device of the present utility model comprises, four roll surface cleaning roller 4a, 4a ', 4b, 4b ' are installed on roll surface one side of two crystallization rollers of dual-roller thin- band conticaster 1a, 1b respectively in twos; Two roll surface cleaning roller roll forming differences of homonymy; Described roll surface cleaning roller is pushed or is broken away to the driving mechanism 12 of crystallization roller roll surface and the rotation of roll surface cleaning roller;
The driving mechanism 12 of roll surface cleaning roller comprises two covers frequency conversion servomotor 122a, 122b, 122a ', the 122b ' of control separately, servomotor is by chain drive roll surface cleaning roller 4a, 4a ', 4b, 4b ', and the rotary speed that can clear up brush roll according to the adjustment of roll surface temperature situation.Also comprise support dolly 121a, 121b, 121a ', 121b ' in the driving mechanism 12, it seesaws and regulates distance between cleaning roller and the crystallization roller can carrying roll surface cleaning roller 4a, 4a ', 4b, 4b ' and servomotor 122a, 122b, 122a ', 122b ' under the effect of hydraulic cylinder 123a, 123b, 123a ', 123b ', regulate the pressure that the roll surface cleaning plant puts on crystallization roller 1a, 1b surface with this, it is good that pressure increases cleaning effect, cleaning roller 4a, 4b wear extent are bigger, otherwise cleaning effect is poor, and cleaning roller 4a, 4b wear extent are little.
Described roll surface cleaning roller 4a, 4a ', 4b, 4b ' are brush roll, and employing copper wire or heat-resisting plant palm fiber are clipped in to twine in the steel tank and are welded on the mandrel; Or, copper wire or palm fiber are made into disk are pressed on the roller core shaft one by one in steel tank; The copper wire specification is 0.15～0.2mm.
Referring to Fig. 3～Fig. 4, the shape difference of two cleaning rollers of crystallization roller homonymy, effect difference.Situation of change at crystallization roller roll forming, use the cleaning roller of difformity roll forming to adapt to crystallization roller roll forming in different phase, main purpose is to make the roll forming of the roll forming of cleaning roller in contrast to the crystallization roller, make it can be adjacent to the crystallization roller more uniformly, so that more uniformly crystallization roller roll surface is cleared up.
As Fig. 3～shown in Figure 4, described roll surface cleaning roller roll surface roll forming is respectively arcs of recesses, plain-barreled roll;
Figure 3 shows that roll surface cleaning roller 4a roll surface of the present utility model is for being arcs of recesses; Figure 4 shows that roll surface cleaning roller 4a of the present utility model is a plain-barreled roll, no roll forming;
During casting work, form bath 3 by crystallization roller 1a, 1b, side seal board 2a, 2b, crystallization roller 1a, 1b rotate, and molten steel is cooled off by the crystallization roller and pushes the back and forms the Cast Strip at band outlet, and enter milling train 6,7 by swing guide 5 adjustment, carry after laminar flow cooling 9 by roller-way again and batch 10 one-tenth coil of strips 11.
When above-mentioned casting work, cleaning roller 4a, 4a ', 4b, 4b ' follow transmission device 12 and are pushed to crystallization roller 1a, 1b and press close to roll surface by hydraulic cylinder 123a, 123b, 123a ', 123b ', cleaning roller rotation direction and crystallization roller direction of rotation; Begin to be poured into the casting stabilization sub stage, use cleaning roller 4a, 4a ' to be adjacent to the crystallization roller and carry out the roll surface cleaning, the roll forming of cleaning roller 4a, 4a ' is in contrast to the initial roll forming of crystallization roller, the initial roll forming of crystallization roller is a convex in this case, cleaning roller 4b, 4b ' do not devote oneself to work this moment, away from crystallization roller roll surface;
Stablize the casting stage until the casting end, this moment is because thermal deformation has taken place in crystallization roller 1a, 1b, because the existence of original convex roll forming, the roll surface of this moment does not have radian, so use cleaning roller 4b, 4b ' that the crystallization roller is cleared up, cleaning roller 4b, 4b ' are that plain-barreled roll is consistent with crystallization roller roll forming at this moment, are beneficial to cleaning crystallization roller.Cleaning roller 4a, 4a ' break away from crystallization roller roll surface at this moment.
Claims (9)
1. a cleaning twin-roll thin strip concasting roller surface device is characterized in that, comprise,
At least four roll surface cleaning rollers are installed on roll surface one side of two crystallization rollers of dual-roller thin-band conticaster respectively in twos; Two roll surface cleaning roller roll forming differences of homonymy;
Described roll surface cleaning roller is pushed or is broken away to the driving mechanism of crystallization roller roll surface and the rotation of roll surface cleaning roller.
2. cleaning twin-roll thin strip concasting roller surface device as claimed in claim 1 is characterized in that the driving mechanism of described every roll surface cleaning roller comprises support dolly, hydraulic cylinder, servomotor; Support dolly carrying roll surface cleaning roller, servomotor, and connect hydraulic cylinder; Servomotor connects cleaning roller.
3. cleaning twin-roll thin strip concasting roller surface device as claimed in claim 1 or 2 is characterized in that, described roll surface cleaning roller is metal or vegetable hair brush roll.
4. cleaning twin-roll thin strip concasting roller surface device as claimed in claim 1 is characterized in that, described roll surface cleaning roller employing copper wire or heat-resisting plant palm fiber are clipped in to twine in the steel tank and are bound up on the roller core shaft.
5. cleaning twin-roll thin strip concasting roller surface device as claimed in claim 1 is characterized in that, described roll surface cleaning roller is pressed on the roller core shaft one by one for copper wire or palm fiber are made into disk in steel tank.
6. as claim 1 or 4 or 5 described cleaning twin-roll thin strip concasting roller surface devices, it is characterized in that described copper wire specification is 0.15～0.2mm.
7. cleaning twin-roll thin strip concasting roller surface device as claimed in claim 1 or 2 is characterized in that, described roll surface cleaning roller roll surface roll forming is plain-barreled roll or arcs of recesses or convex.
8. cleaning twin-roll thin strip concasting roller surface device as claimed in claim 1 or 2 is characterized in that, described roll surface cleaning roller roll surface is that the middle part is that groove is respectively established in plane, both sides.
9. cleaning twin-roll thin strip concasting roller surface device as claimed in claim 2 is characterized in that, described servomotor is the variable-frequency motor of controlling separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200769921U CN201136046Y (en) | 2007-12-21 | 2007-12-21 | Cleaning plant for double-roller thin band continuous casting roller surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200769921U CN201136046Y (en) | 2007-12-21 | 2007-12-21 | Cleaning plant for double-roller thin band continuous casting roller surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201136046Y true CN201136046Y (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200769921U Expired - Lifetime CN201136046Y (en) | 2007-12-21 | 2007-12-21 | Cleaning plant for double-roller thin band continuous casting roller surface |
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| CN (1) | CN201136046Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950276A (en) * | 2011-08-30 | 2013-03-06 | 宝山钢铁股份有限公司 | Method and device for cleaning surface of dual-roller thin-strip casting roll |
| WO2014047746A1 (en) * | 2012-09-27 | 2014-04-03 | 宝山钢铁股份有限公司 | Method and apparatus for cleaning twin-roller, thin band, continuous casting roller face |
| CN106552911A (en) * | 2015-09-30 | 2017-04-05 | 宝山钢铁股份有限公司 | Thin strap continuous casting mixes the cleaning plant and method for cleaning of mao roll surface |
| CN112157230A (en) * | 2020-09-07 | 2021-01-01 | 东北大学 | Double-roller thin-strip continuous casting roller surface cleaning device |
| CN112157229A (en) * | 2020-09-07 | 2021-01-01 | 东北大学 | Roll surface cleaning device for thin strip continuous casting and control method and control device thereof |
| CN115493884A (en) * | 2022-11-17 | 2022-12-20 | 安徽龙图检验检测科技有限公司 | Soil sampling device for soil detection |
-
2007
- 2007-12-21 CN CNU2007200769921U patent/CN201136046Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950276A (en) * | 2011-08-30 | 2013-03-06 | 宝山钢铁股份有限公司 | Method and device for cleaning surface of dual-roller thin-strip casting roll |
| CN102950276B (en) * | 2011-08-30 | 2014-10-01 | 宝山钢铁股份有限公司 | Method and device for cleaning surface of dual-roller thin-strip casting roll |
| WO2014047746A1 (en) * | 2012-09-27 | 2014-04-03 | 宝山钢铁股份有限公司 | Method and apparatus for cleaning twin-roller, thin band, continuous casting roller face |
| EP2902134A4 (en) * | 2012-09-27 | 2016-06-08 | Baoshan Iron & Steel | Method and apparatus for cleaning twin-roller, thin band, continuous casting roller face |
| US9770756B2 (en) | 2012-09-27 | 2017-09-26 | Baoshan Iron & Steel Co., Ltd. | Method and device for cleaning a surface of a twin-roller continuous thin strip casting roller |
| CN106552911A (en) * | 2015-09-30 | 2017-04-05 | 宝山钢铁股份有限公司 | Thin strap continuous casting mixes the cleaning plant and method for cleaning of mao roll surface |
| CN106552911B (en) * | 2015-09-30 | 2018-08-10 | 宝山钢铁股份有限公司 | Thin strap continuous casting mixes the cleaning plant and method for cleaning of mao roll surface |
| CN112157230A (en) * | 2020-09-07 | 2021-01-01 | 东北大学 | Double-roller thin-strip continuous casting roller surface cleaning device |
| CN112157229A (en) * | 2020-09-07 | 2021-01-01 | 东北大学 | Roll surface cleaning device for thin strip continuous casting and control method and control device thereof |
| CN115493884A (en) * | 2022-11-17 | 2022-12-20 | 安徽龙图检验检测科技有限公司 | Soil sampling device for soil detection |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |