CN104531977A - Operation method for correcting strip steel operation line deflection scraping - Google Patents
Operation method for correcting strip steel operation line deflection scraping Download PDFInfo
- Publication number
- CN104531977A CN104531977A CN201410834409.3A CN201410834409A CN104531977A CN 104531977 A CN104531977 A CN 104531977A CN 201410834409 A CN201410834409 A CN 201410834409A CN 104531977 A CN104531977 A CN 104531977A
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- CN
- China
- Prior art keywords
- strip steel
- deviation
- steel
- sideslip
- line deflection
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention relates to an operation method for correcting strip steel operation line deflection scraping. The method comprises the following specific steps: 1, selecting automatic connection of a correction roller in a normal operating state; 2, automatically correcting at a line deflection position by virtue of the correction roller when strip steel line deflection goes beyond a correction range of the correction roller, manually correcting the front group and rear group of the correction rollers in the direction opposite to the strip steel line deflection direction, and widening the correction roller intervention range; and 3, stopping operation of the unit when the strip steel edge and the furnace wall are scrapped and deformed, lowering the set value of the strip steel temperature to be 650-700 DEG C, canceling the strip steel tension, manually conveying the strip steel so as to loosen and relieve the strip steel at the line deflection position, so that the suspended strip steel at the line deflection position is subjected to tension pointing at the center line direction, performing building tension on the strip steel in the furnace, repeating the operation for 2-3 times, correcting the strip steel, and restoring normal production. The operation method disclosed by the invention is simple and practical, so that the inter-furnace strip steel operation line deflection scraping problem is effectively solved, and furnace strip breakage accidents caused by the strip steel line deflection scraping are greatly reduced.
Description
Technical field
Technical field is moved back by the company of the present invention relates to, particularly a kind of working method of correcting band steel operation sideslip scraping.
Background technology
In cold rolled continuous annealing unit production process, when band steel runs in continuous annealing furnace, often because self template is bad, weld seam centering is not in place, the reasons such as belt steel temperature sharply changes cause band steel to run and depart from unit centre line, the online deviation rectification roller of unit is utilized to rectify a deviation under normal circumstances, but when sideslip is serious, rectifying effect is bad, or when exceeding the deviation rectification roller correction limit, now continue to run, band steel will deviate to furnace wall and scratching will occur, steel edge portion is caused to be badly damaged, producing breach finally causes the serious accidents such as broken belt to occur, therefore a kind for the treatment of process must be found, band steel is corrected to unit centre line, return to normal production state, prevent serious scraping broken belt accident from occurring.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of working method of correcting band steel operation sideslip scraping, and effectively process band steel runs serious sideslip scraping problem in continuous annealing furnace, avoids the generation running by force and cause band steel serious scraping broken belt accident.
For achieving the above object, the present invention realizes by the following technical solutions:
Correct the working method that band steel runs sideslip scraping, concrete operations are as follows:
1., under normal operating condition, deviation rectification roller is selected automatically to drop into, and when strip running deviation is in deviation rectification roller correction range, deviation rectification roller automatic deviation correction, makes band steel run back medullary ray;
2. when strip running deviation exceeds deviation rectification roller correction range, sideslip positional deviation correction roller automatic deviation correction, its last group of deviation rectification roller and rear one group of deviation rectification roller are manually rectified a deviation simultaneously, last group and rear one group of deviation rectification roller are rectified a deviation toward strip running deviation reverse direction, expand deviation rectification roller and intervene scope;
3. when scratching occurs for steel edge portion and furnace wall, during distortion, unit is out of service, belt steel temperature set(ting)value is adjusted downward to 650-700 DEG C, cancel strip tension, centered by sideslip position, before and after stove district, kink is to sideslip position manual transmission roller-belt steel, band steel is loosened in sideslip position, slow cover, sideslip position is made to be with steel relative to sideslip band of position steel more near unit centre line forward and backward, the band steel making sideslip position unsettled is subject to the pulling force pointing to centerline direction, in stove, band steel is again built and is opened, repetitive operation 2-3 time, band steel is made to correct to unit centre line gradually, and return to normal production.
Compared with prior art, the invention has the beneficial effects as follows:
Working method of the present invention is simple and practical to be made band steel in stove run sideslip scraping problem to obtain effective process, significantly reduces the generation of broken belt accident in the stove that causes due to strip running deviation scraping.
Embodiment
Below in conjunction with embodiment, the present invention is further described:
Embodiment
Correct the working method that band steel runs sideslip scraping, concrete operations are as follows:
1., under normal operating condition, deviation rectification roller is selected automatically to drop into, and when strip running deviation distance is less than 50mm, deviation rectification roller automatic deviation correction, makes band steel run back medullary ray;
2. when strip running deviation distance is at 50-150mm, sideslip positional deviation correction roller selects automatic deviation correction, its last group of deviation rectification roller and rear one group of deviation rectification roller are manually rectified a deviation simultaneously, last group and rear one group of deviation rectification roller are rectified a deviation toward strip running deviation reverse direction, expand deviation rectification roller and intervene scope to 500m;
3. when scratching occurs for steel edge portion and furnace wall, during distortion, unit is out of service, belt steel temperature set(ting)value is adjusted downward to 650-700 DEG C, cancel strip tension, centered by sideslip position, before and after stove district, kink is to sideslip position manual transmission roller-belt steel, band steel is loosened in sideslip position, slow cover, sideslip position is made to be with steel relative to sideslip band of position steel more near unit centre line forward and backward, the band steel making sideslip position unsettled is subject to the pulling force pointing to centerline direction, in stove, band steel is again built and is opened, repetitive operation 2-3 time, band steel is made to correct to unit centre line gradually, and return to normal production.
Be only ultimate principle of the present invention above, not impose any restrictions the present invention, the present invention of every foundation carries out equivalent variations and modification to it, all within the category of the art of this patent protection scheme.
Claims (1)
1. correct the working method that band steel runs sideslip scraping, it is characterized in that, concrete operations are as follows:
1), under normal operating condition, deviation rectification roller is selected automatically to drop into, and when strip running deviation is in deviation rectification roller correction range, deviation rectification roller automatic deviation correction, makes band steel run back medullary ray;
2) when strip running deviation exceeds deviation rectification roller correction range, sideslip positional deviation correction roller automatic deviation correction, its last group of deviation rectification roller and rear one group of deviation rectification roller are manually rectified a deviation simultaneously, last group and rear one group of deviation rectification roller are rectified a deviation toward strip running deviation reverse direction, expand deviation rectification roller and intervene scope;
3) when scratching occurs for steel edge portion and furnace wall, during distortion, unit is out of service, belt steel temperature set(ting)value is adjusted downward to 650-700 DEG C, cancel strip tension, centered by sideslip position, before and after stove district, kink is to sideslip position manual transmission roller-belt steel, band steel is loosened in sideslip position, slow cover, sideslip position is made to be with steel relative to sideslip band of position steel more near unit centre line forward and backward, the band steel making sideslip position unsettled is subject to the pulling force pointing to centerline direction, in stove, band steel is again built and is opened, repetitive operation 2-3 time, band steel is made to correct to unit centre line gradually, and return to normal production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410834409.3A CN104531977A (en) | 2014-12-28 | 2014-12-28 | Operation method for correcting strip steel operation line deflection scraping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410834409.3A CN104531977A (en) | 2014-12-28 | 2014-12-28 | Operation method for correcting strip steel operation line deflection scraping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104531977A true CN104531977A (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410834409.3A Pending CN104531977A (en) | 2014-12-28 | 2014-12-28 | Operation method for correcting strip steel operation line deflection scraping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104531977A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108707729A (en) * | 2018-07-24 | 2018-10-26 | 邯郸钢铁集团有限责任公司 | A kind of continuous annealing furnace on-site manual deviation correcting device and its method for correcting error |
| CN108728630A (en) * | 2018-04-28 | 2018-11-02 | 首钢京唐钢铁联合有限责任公司 | Method and device for avoiding deviation of strip steel |
| CN109047342A (en) * | 2018-06-28 | 2018-12-21 | 唐山钢铁集团有限责任公司 | A kind of cold-strip steel centring manual correction device and method |
Citations (5)
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|---|---|---|---|---|
| JP2005240117A (en) * | 2004-02-26 | 2005-09-08 | Jfe Steel Kk | Method and device for correcting meandering of belt-like body |
| CN101327877A (en) * | 2008-07-08 | 2008-12-24 | 无锡三洲冷轧硅钢有限公司 | Band steel running deviation control device |
| CN201809413U (en) * | 2010-07-30 | 2011-04-27 | 攀钢集团钢铁钒钛股份有限公司 | Error correction control device for thermal tension roller of L-shaped annealing furnace |
| CN103253539A (en) * | 2013-04-22 | 2013-08-21 | 攀钢集团攀枝花钢钒有限公司 | Control method capable of preventing strip steel of galvanizing unit from deflection and belt braking in operation |
| CN104131152A (en) * | 2014-07-15 | 2014-11-05 | 首钢总公司 | Buckling treatment method of thin and wide specification IF steel in furnace |
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2014
- 2014-12-28 CN CN201410834409.3A patent/CN104531977A/en active Pending
Patent Citations (5)
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| JP2005240117A (en) * | 2004-02-26 | 2005-09-08 | Jfe Steel Kk | Method and device for correcting meandering of belt-like body |
| CN101327877A (en) * | 2008-07-08 | 2008-12-24 | 无锡三洲冷轧硅钢有限公司 | Band steel running deviation control device |
| CN201809413U (en) * | 2010-07-30 | 2011-04-27 | 攀钢集团钢铁钒钛股份有限公司 | Error correction control device for thermal tension roller of L-shaped annealing furnace |
| CN103253539A (en) * | 2013-04-22 | 2013-08-21 | 攀钢集团攀枝花钢钒有限公司 | Control method capable of preventing strip steel of galvanizing unit from deflection and belt braking in operation |
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| 李九岭: "《热镀锌设备与工艺》", 31 October 2014 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108728630A (en) * | 2018-04-28 | 2018-11-02 | 首钢京唐钢铁联合有限责任公司 | Method and device for avoiding deviation of strip steel |
| CN108728630B (en) * | 2018-04-28 | 2019-10-29 | 首钢京唐钢铁联合有限责任公司 | Method and device for avoiding deviation of strip steel |
| CN109047342A (en) * | 2018-06-28 | 2018-12-21 | 唐山钢铁集团有限责任公司 | A kind of cold-strip steel centring manual correction device and method |
| CN108707729A (en) * | 2018-07-24 | 2018-10-26 | 邯郸钢铁集团有限责任公司 | A kind of continuous annealing furnace on-site manual deviation correcting device and its method for correcting error |
| CN108707729B (en) * | 2018-07-24 | 2023-11-10 | 邯郸钢铁集团有限责任公司 | On-site manual deviation rectifying device and method for continuous annealing furnace |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |