CN102327925A - Method for controlling aperture of hot rolling and reeling side guide by using actually-measured width of finished product - Google Patents
Method for controlling aperture of hot rolling and reeling side guide by using actually-measured width of finished product Download PDFInfo
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- CN102327925A CN102327925A CN201110220346A CN201110220346A CN102327925A CN 102327925 A CN102327925 A CN 102327925A CN 201110220346 A CN201110220346 A CN 201110220346A CN 201110220346 A CN201110220346 A CN 201110220346A CN 102327925 A CN102327925 A CN 102327925A
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Abstract
The invention provides a method for controlling the aperture of a hot rolling and reeling side guide by using an actually-measured width of a finished product, which aims to solve the problem that errors of reeling and steel piling-up are caused due to the inaccurate width setting of the head part of band steel. The method comprises the following steps of: detecting the width of the band steel by utilizing a width measuring instrument at a precision rolling outlet and delivering an actually-measured width value of the band steel to an automatic control system of a reeling base every 50 microseconds; averaging the actually-measured width values of three points with sampling distances s which are equal to 8 meters, 9 meters and 10 meters; respectively calculating corresponding time points t1, t2 and t3 by using a time-displacement formula when s is equal to 8 meters, 9 meters and 10 meters; reading the actually-measured width values w1, w2 and w3 which correspond to the time points t1, t2 and t3, of the band steel and calculating an arithmetic mean value w of the actually-measured width values of the band steel; if the difference between w and a rolling width of the band steel, which is set before the band steel enters into a finishing mill set, is in a range of +/-35 millimeters, and setting the aperture of the reeling side guide by using the arithmetic mean value; or setting the aperture of the reeling side guide by continuously using the set width of the band steel before the band steel enters into the finishing mill set; and additionally adjusting the aperture of the side guide for one time before a reeling machine bites the steel.
Description
Technical field
The present invention relates to a kind of hot continuous rolling coiling machine control technology.
Background technology
The hot continuous rolling main equipment can be divided into heating furnace district, roughing district, finish rolling district, batch district's 4 major parts.Batch side lead be installed on the coiling machine pinch roll before, play to the band steel that gets into coiling machine carry out in the effect of side direction guiding.Its aperture size is set width according to belt steel rolling and is regulated.Batching side, to lead aperture excessive, causes scroll bad even declare useless; And that side is led aperture is too small, then causes side to lead the folder steel, causes rolling line steel scrap fault.In the hot continuous rolling control system, coiling machine control parameter is all accomplished before the band steel gets into mm finishing mill unit with finish rolling Equipment Control parameter and is set.Therefore, the setting of belt steel rolling width is by the decision of roughing outlet strip width.Yet because the tail of head/first appears easily first in the part steel grade, and first head/first the length of tail is merely 100mm～300mm, roughing width measure instrument can't accurately examine this place's width, after the process mm finishing mill unit was rolling, this segment length extended to 1m～10m.When reality gets into the strip width broad of coiling machine, cause batching side and lead folder steel fault.
Summary of the invention
The object of the invention is exactly for overcoming the deficiency of above-mentioned prior art; A kind of quality problems such as a band coil of strip shape tower, tail overflow, fault of improving are provided, and what solve that band steel toe portion width setup forbidden to cause to batch heap steel fault leads the method for aperture with finished product actual measurement width control hot rolling reeling side.
The present invention the wide instrument of finish rolling outlet side examine behind the finished product developed width, basic automatization carries out the belt steel rolling width setup again, improves to batch side and lead control accuracy.The inventive method is:
(1) the width gage table that is installed in finish rolling outlet detects strip width; Every separated 50ms will be with steel actual measurement width value to send to and batch basic automatization control system, and the basic automatization control system of batching that adopts digital drive technology to carry out taking-up equipment control receives the width eyeball from first and begins to carry out timing.
(2) through analyzing, comparatively stable apart from first sampled point 10m place strip width detected value, simultaneously, detect the influence of data fluctuations for avoiding single-point, use sampled distance s equals the width measured value that 8m, 9m, 3 of 10m locate and averages.That is to say, batch basic automatization control system, calculate s respectively through time shifting formula t=s/v and get 8m, 9m, the corresponding time t1 of 10m, t2, t3 according to current speed of service v, the sampled distance s of band steel.
(3) read t1, t2, t3 time point and be with steel actual measurement width value w1, w2, w3 accordingly, obtain band steel actual measurement width arithmetic mean of instantaneous value w.
(4) if this width arithmetic mean of instantaneous value w and band steel get into the rolling width deviation set before the mm finishing mill unit in ± 35mm, then adopt this arithmetic mean of instantaneous value to batch side and lead aperture and set, batch side and lead aperture SG=width arithmetic mean of instantaneous value+surplus; Otherwise the setting width before the continuation employing band steel entering mm finishing mill unit batches side and leads the aperture setting, batches side and leads aperture SG=finish rolling setting width value+surplus.Surplus is generally got 10mm.
(5) before coiling machine is stung steel, increase primary side and lead the aperture adjusting; When promptly being with steel through finish rolling outlet width gage table 20m; Hydraulic means drives and to batch side and lead and batch side according to step (4) and lead aperture SG and set the result and regulate side once more and lead aperture, improves to batch side and lead the centering effect.Routine is batched side and is led the aperture adjusting only in the execution of finish rolling inlet once.
The present invention the wide instrument of finish rolling outlet side examine behind the finished product developed width; Basic automatization control system batches side again according to band steel finished product actual measurement width and leads width setup; Before coiling machine is stung steel, increase primary side and lead the aperture adjusting; Improved quality problems such as a band coil of strip shape tower, tail overflow, fault, avoided significantly having improved band coil of strip shape control quality because of the ultra reason such as wide of band steel causes the fault of batching the heap steel.
Description of drawings
Fig. 1 is a R12114020100 coil of strip total length width detection recording curve;
Fig. 2 is a R00120050100 coil of strip total length width detection recording curve.
The specific embodiment
Owing to only can write down the rolling time of every block of band steel in the operation of rolling, the length of band steel calculates according to mill speed and time.Two recording curves have respectively been shown among Fig. 1, Fig. 2; The abscissa of every curve all is to be unit with time, and ordinate then is to use different units according to the meaning of sampled point, wherein; What irregular curve 1,3 write down is the width measurement of corresponding moment band steel, sees left side axis of ordinates scale; What skew lines 2,4 write down is the length of corresponding moment band steel, sees right side axis of ordinates scale.Therefore,, must be converted to the corresponding time, just the length value of the strip width measured value of corresponding different (abscissas) constantly and band steel among Fig. 1 if will get the width value that band steel length equals 8m, 9m, 10m relevant position.Concrete grammar:
(1) all hot continuous rolling production line mm finishing mill unit outlet sides all are equipped with the width gage table.Each piece band steel is through in the rolling entering width gage of the mm finishing mill unit table surveyed area, and this instrument then on-line continuous detects the working control width of being with the steel total length, and simultaneously, every interval 50ms will be with steel actual measurement width value to send basic automatization to.Basic automatization is according to data acquisition time record paper steel total length each point width measurement.Fig. 1, Fig. 2 are seen as the starting point of band steel toe portion width detection in first width data collection point.
(2) through a large amount of strip width surveying record curves are analyzed, it is comparatively stable that we see that distance band steel toe portion 10m place strip width detects, and sees Fig. 1, Fig. 2, can reflect finished strip head developed width exactly.Simultaneously, detect the influence of data fluctuations for fear of single-point, we choose sampled distance s and equal the width measured value that 8m, 9m, 3 of 10m locate and average.
(3) according to current speed of service v, the sampled distance s of band steel,, calculate s respectively and get 8m, 9m, the corresponding time t1 of 10m, t2, t3 through time shifting formula t=s/v.
(3) batch basic automatization and read band steel actual measurement width, get respectively and t1, t2, the corresponding actual measurement width value of t3 time point w1, w2, w3, and obtain 3 actual measurement width arithmetic mean of instantaneous value w.
(4) if this width arithmetic mean of instantaneous value and band steel get into the rolling width deviation set before the mm finishing mill unit in ± 35mm, then adopt this arithmetic mean of instantaneous value to batch side and lead aperture and set, batch side and lead aperture SG=width arithmetic mean of instantaneous value+surplus; Otherwise the setting width before the continuation employing band steel entering mm finishing mill unit batches side and leads the aperture setting, batches side and leads aperture SG=finish rolling setting width value+surplus.Surplus is generally got 10mm.
With Fig. 1, Fig. 2 is example, and among Fig. 1, it is 1500mm that width value is set in the finish rolling of R12114020100 coil of strip, and the finished width actual measurement mean value that sampled distance 8m, 9m, 3 of 10m locate is 1515mm, therefore, batches side and leads aperture SG=1515+10=1525 (mm); Among Fig. 2, it is 2018mm that width value is set in the finish rolling of R00120050100 coil of strip, and therefore the finished width actual measurement mean value that sampled distance 8m, 9m, 3 of 10m locate, batch side and lead aperture SG=2018+10=2028 (mm) also for 2018mm.
(5) present, all hot continuous rolling production lines are led adjusting and all before the band steel gets into mm finishing mill unit, are accomplished in the band steel side of carrying out before batching of batching for the last time of nipping, and it is low that side is led control accuracy, are prone to cause the scroll defective and batch side and lead faults such as pressing from both sides steel.For this reason; The present invention has increased primary side according to finished product actual measurement width and has led the aperture adjusting before coiling machine is stung steel; When promptly being with steel toe portion through finish rolling outlet width gage table 20m, hydraulic means drives and batches side and lead according to batching side and lead aperture SG and set the result and regulate side once more and lead aperture, has improved to batch side and lead the centering effect; Avoided significantly having improved band coil of strip shape control quality because of ultra reason such as wide causes the fault of batching the heap steel.
Claims (1)
1. lead the method for aperture with finished product actual measurement width control hot rolling reeling side for one kind, it is characterized in that:
(1) the width gage table that is installed in finish rolling outlet detects strip width; Every separated 50ms will be with steel actual measurement width value to send to and batch basic automatization control system, and the basic automatization control system of batching that adopts digital drive technology to carry out taking-up equipment control receives the width eyeball from first and begins to carry out timing;
(2), use sampled distance s to equal the width measured value that 8m, 9m, 3 of 10m locate and average for avoiding single-point to detect the influence of data fluctuations; Batch basic automatization control system according to current speed of service v, the sampled distance s of band steel, calculate s respectively through time shifting formula t=s/v and get 8m, 9m, the corresponding time t1 of 10m, t2, t3;
(3) read t1, t2, t3 time point and be with steel actual measurement width value w1, w2, w3 accordingly, obtain band steel actual measurement width arithmetic mean of instantaneous value w;
(4) if this width arithmetic mean of instantaneous value w and band steel get into the rolling width deviation set before the mm finishing mill unit in ± 35mm, then adopt this arithmetic mean of instantaneous value to batch side and lead aperture and set, batch side and lead aperture SG=width arithmetic mean of instantaneous value+surplus; Otherwise the setting width before the continuation employing band steel entering mm finishing mill unit batches side and leads the aperture setting, batches side and leads aperture SG=finish rolling setting width value+surplus; Surplus is got 10mm;
(5) before coiling machine is stung steel, increase primary side and lead the aperture adjusting; When promptly being with steel through finish rolling outlet width gage table 20m; Hydraulic means drives and to batch side and lead and batch side according to step (4) and lead aperture SG and set the result and regulate side once more and lead aperture, improves to batch side and lead the centering effect.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716913A (en) * | 2012-06-26 | 2012-10-10 | 山西太钢不锈钢股份有限公司 | Width control method for ferrite hot rolling stainless steel wedge-shaped plate blank |
| CN104259247A (en) * | 2014-07-31 | 2015-01-07 | 山西太钢不锈钢股份有限公司 | Control method of hot continuous rolling silicon steel head superwide winding side guide position |
| CN104785534A (en) * | 2014-01-21 | 2015-07-22 | 宝山钢铁股份有限公司 | Hot rolling width quick correction method based on fine rolling measured data |
| CN104841723A (en) * | 2015-04-30 | 2015-08-19 | 山东钢铁股份有限公司 | Method for controlling opening and closing of side guide plate of hot rolling strip steel reeling machine |
| CN107433285A (en) * | 2016-05-27 | 2017-12-05 | 宝山钢铁股份有限公司 | A kind of finish rolling outlet heads skew causes the control method for batching steel scrap |
| CN111922120A (en) * | 2020-07-09 | 2020-11-13 | 首钢京唐钢铁联合有限责任公司 | Method for preventing side guide plate of coiling machine from clamping steel |
| CN113399470A (en) * | 2021-07-12 | 2021-09-17 | 重庆钢铁股份有限公司 | Method and system for controlling opening degree of side guide plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10286614A (en) * | 1997-04-15 | 1998-10-27 | Sumitomo Metal Ind Ltd | Method for controlling width in continuous hot rolling |
| KR20010061655A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | Response time control apparatus of hot strip mill and its control method |
| CN101811140A (en) * | 2009-02-20 | 2010-08-25 | 上海梅山钢铁股份有限公司 | Method suitable for width measurement and centering of rough rolling slab in hot rolling mill |
| CN101930225A (en) * | 2009-06-23 | 2010-12-29 | 宝山钢铁股份有限公司 | Hot rolling reeling width automatic control method and device thereof |
| CN102039330A (en) * | 2010-10-16 | 2011-05-04 | 山西太钢不锈钢股份有限公司 | Parameter setting method of hot continuous rolling thin slab coiling device and coiling method of hot continuous rolling thin slab |
-
2011
- 2011-07-28 CN CN 201110220346 patent/CN102327925B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10286614A (en) * | 1997-04-15 | 1998-10-27 | Sumitomo Metal Ind Ltd | Method for controlling width in continuous hot rolling |
| KR20010061655A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | Response time control apparatus of hot strip mill and its control method |
| CN101811140A (en) * | 2009-02-20 | 2010-08-25 | 上海梅山钢铁股份有限公司 | Method suitable for width measurement and centering of rough rolling slab in hot rolling mill |
| CN101930225A (en) * | 2009-06-23 | 2010-12-29 | 宝山钢铁股份有限公司 | Hot rolling reeling width automatic control method and device thereof |
| CN102039330A (en) * | 2010-10-16 | 2011-05-04 | 山西太钢不锈钢股份有限公司 | Parameter setting method of hot continuous rolling thin slab coiling device and coiling method of hot continuous rolling thin slab |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716913A (en) * | 2012-06-26 | 2012-10-10 | 山西太钢不锈钢股份有限公司 | Width control method for ferrite hot rolling stainless steel wedge-shaped plate blank |
| CN102716913B (en) * | 2012-06-26 | 2014-08-27 | 山西太钢不锈钢股份有限公司 | Width control method for ferrite hot rolling stainless steel wedge-shaped plate blank |
| CN104785534A (en) * | 2014-01-21 | 2015-07-22 | 宝山钢铁股份有限公司 | Hot rolling width quick correction method based on fine rolling measured data |
| CN104785534B (en) * | 2014-01-21 | 2017-06-06 | 宝山钢铁股份有限公司 | A kind of hot rolling width rapid correction method based on finish rolling measured data |
| CN104259247A (en) * | 2014-07-31 | 2015-01-07 | 山西太钢不锈钢股份有限公司 | Control method of hot continuous rolling silicon steel head superwide winding side guide position |
| CN104841723A (en) * | 2015-04-30 | 2015-08-19 | 山东钢铁股份有限公司 | Method for controlling opening and closing of side guide plate of hot rolling strip steel reeling machine |
| CN104841723B (en) * | 2015-04-30 | 2017-01-18 | 山东钢铁股份有限公司 | Method for controlling opening and closing of side guide plate of hot rolling strip steel reeling machine |
| CN107433285A (en) * | 2016-05-27 | 2017-12-05 | 宝山钢铁股份有限公司 | A kind of finish rolling outlet heads skew causes the control method for batching steel scrap |
| CN111922120A (en) * | 2020-07-09 | 2020-11-13 | 首钢京唐钢铁联合有限责任公司 | Method for preventing side guide plate of coiling machine from clamping steel |
| CN113399470A (en) * | 2021-07-12 | 2021-09-17 | 重庆钢铁股份有限公司 | Method and system for controlling opening degree of side guide plate |
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