CN103170508A - Method for controlling width of hot rolling strip steel - Google Patents
Method for controlling width of hot rolling strip steel Download PDFInfo
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- CN103170508A CN103170508A CN2011104315191A CN201110431519A CN103170508A CN 103170508 A CN103170508 A CN 103170508A CN 2011104315191 A CN2011104315191 A CN 2011104315191A CN 201110431519 A CN201110431519 A CN 201110431519A CN 103170508 A CN103170508 A CN 103170508A
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Abstract
The invention belongs to the technical field of hot rolling production and control, and provides a method for controlling the width of hot rolling strip steel. Width-measuring devices are additionally arranged at the front and the back of a vertical rolling mill of width-controlling equipment, width data of strip billets at the front and the back of a horizontal mill are collected in real time, the real-time width data are transmitted to a data acquisition system before the strip billets enter the mill, and the data acquisition system transmits the width data to a model system; the model system compares the width data acquired in real time with predicted data predicted by a model, and then determines whether width control is corrected or not, if width disturbance is large, width open loop feedforward control is carried out at first, after the belt billets leave the width-controlling equipment and the horizontal mill, mill rear width detection equipment sends corresponding data to the model system, the model system carries out calculation again, on-line control of a vertical roll is achieved through basic automation, and therefore closed loop feedback control is formed. Width detection is carried out on a plate billet at first before the plate billet enters the width-controlling equipment, dynamic correction is carried out on basic automation system control equipment, and therefore the width disturbance is reduced, and width feedforward and feedback dynamic control is realized.
Description
Technical field
The invention belongs to hot rolling production control technical field, be specifically related to a kind of method that Hot Strip Width is controlled.
Background technology
Hot Strip Width is the important indicator in the hot-strip product always, and the width control technology is all that after utilizing milling train, width gage equipment carries out the width FEEDBACK CONTROL both at home and abroad at present.its cardinal principle is that hot-rolled billet is by after controlling wide equipment, field instrument carries out the width data sampling to it, and the feedback data after sampling is submitted to width control model module, width control model module compares according to the desired value of on-the-spot feedback data and model precomputation, if two width values are basically identical, think that width is controlled and correctly do not take width correction to control, if it is the width disturbance that deviation is arranged, it is carried out width correction, guarantee the width control accuracy, this control method has an important shortcoming namely: change is waited disturb adaptive capacity poor, when if the deviation that namely detects is larger, feedback can't be carried out rational width adjusting.
After hot rolling slab supplied materials process width control appliance often occured in actual production process, the value deviation of its value of feedback and precomputation was larger, can't satisfy afterwards the requirement of production control precision by feedback modifiers.Cause the main cause of this phenomenon to be when the interference factors such as slab supplied materials width difference are larger, because equipment can't obtain issuable width disturbance quantity in advance, control processing thereby can't revise width, cause width working control deviation larger.
Summary of the invention
Technical problem to be solved by this invention is that the shortcoming for above prior art existence proposes a kind of method that Hot Strip Width is controlled, and can realize that the width feedforward adds dynamically control of feedback, reduces width FEEDBACK CONTROL correction disturbance, improves control accuracy.
The technical scheme that the present invention solves above technical problem is:
A kind of method that Hot Strip Width is controlled, be provided with width measure equipment before and after milling train, the width control appliance that milling train has comprises automatic control system, data collecting system, model system and communication system, it is characterized in that: described Hot Strip Width is controlled and is carried out according to the following steps:
(1) enter the actual measurement of first before milling train width value by the width measure device measuring band steel before described milling train, the first actual measurement width value is uploaded to described data collecting system, and described data collecting system is passed to described model system with the first actual measurement width value data;
(2) described model system compares the rolling made-up belt width value of step (one) first actual measurement width value and model system prediction to such an extent that deviate, whether the judgment bias value is in the adjustable extent of setting, if deviate is in the adjustable extent of setting, described model system the first actual measurement width value of introducing step () calculating that feedovers, described feedforward is calculated as: predicted width value * weight coefficient+(1.0-weight coefficient) * first actual measurement width value, and the difference of described feedforward calculated value and the width value of the finished strip that will produce a width controlled quentity controlled variable as described width control appliance is rolled the band steel that enters milling train, then enter next step, if in the adjustable extent of setting, described model system is not carried out the strip width correction to deviate, directly enters next step,
(3) the band steel is through after milling train, after described milling train, width measure device measuring band steel is through the actual measurement of second after milling train width value, described the second actual measurement width value is uploaded to described data collecting system, described data collecting system is passed to described model system with the second actual measurement width value data, judge whether width control is completed, the no finishing control of completing; If do not finish, enter step;
(4) described model system compares the rolling made-up belt width value of step (three) second actual measurement width values and model system prediction to such an extent that deviate, whether the judgment bias value is in the adjustable extent of setting, if deviate is in the adjustable extent of setting, second of described model system introducing step (three) the actual measurement width value feeds back calculating, described feedback is calculated as: predicted width value * weight coefficient+(1.0-weight coefficient) * second actual measurement width value, and the difference of described feedback calculated value and the width value of the finished strip that will the produce secondary width controlled quentity controlled variable as described width control appliance is rolled the band steel that enters milling train, then return to step (three), loop, if in the adjustable extent of setting, described model system is not carried out the strip width correction to deviate, directly returns to step (three), loops.
The technical scheme that the present invention further limits is:
The method that aforesaid Hot Strip Width is controlled, weight coefficient is 0.6.Each steel mill of weight coefficient can determine according to actual conditions.
the present invention controls in model at width and has introduced the feedforward plus feedback control technology, thereby effectively solved single FEEDBACK CONTROL change has been waited the poor shortcoming of interference adaptive capacity, comparison by actual measured width data before milling train and model precomputation data volume, realized open loop feedforward control, determine the wide amount of actual control, and be handed down to the wide equipment of control and carry out developed width and control, on-the-spot made-up belt width control forecasting data reduce because can't be grasped, and cause the excessive situation of equipment controlled quentity controlled variable, also reduce simultaneously the correction of back width FEEDBACK CONTROL, the final width control accuracy that improves.
Description of drawings
Fig. 1 is equipment connection schematic diagram of the present invention.
Fig. 2 is flow chart of the present invention.
Fig. 3 is the made-up belt width indication figure of embodiment 1.
Fig. 4 is the made-up belt width indication figure of embodiment 2.
The specific embodiment
The present invention is a kind of method that Hot Strip Width is controlled, equipment connection as shown in Figure 1, rear width measure equipment 3 after comprising the width control appliance 2 of horizontal mill 1 and being located at horizontal mill, also be provided with a front width measure equipment 4 before width control appliance 2, front width measure equipment 4 and rear width measure equipment 3 all communicate to connect with width control appliance 2; Hot Strip Width is controlled and to be carried out according to the following steps, flow process as shown in Figure 2:
(1) enter the actual measurement of first before milling train width value by the width measure device measuring band steel before described milling train, the first actual measurement width value is uploaded to described data collecting system, and described data collecting system is passed to described model system with the first actual measurement width value data;
(2) (determine by issuing made-up belt width data and made-up belt thermal coefficient of expansion, and being model dopes width after made-up belt is controlled according to the requirement of controlling by the rolling made-up belt width of prediction with the rolling made-up belt width value of step () first actual measurement width value and model system prediction for described model system.) compare to such an extent that deviate, whether the judgment bias value is in the adjustable extent of setting (adjustable extent each steel mill can determine according to actual conditions), if deviate is in the adjustable extent of setting, described model system the first actual measurement width value of introducing step () calculating that feedovers, described feedforward is calculated as: predicted width value * weight coefficient+(1.0-weight coefficient) * first actual measurement width value, and the difference of described feedforward calculated value and the width value of the finished strip that will produce a width controlled quentity controlled variable as described width control appliance is rolled the band steel that enters milling train, then enter next step, if in the adjustable extent of setting, described model system is not carried out the strip width correction to deviate, directly enters next step,
(3) the band steel is through after milling train, after described milling train, width measure device measuring band steel is through the actual measurement of second after milling train width value, described the second actual measurement width value is uploaded to described data collecting system, described data collecting system is passed to described model system with the second actual measurement width value data, judge whether width control is completed, the no finishing control of completing; If do not finish, enter step;
(4) described model system compares the rolling made-up belt width value of step (three) second actual measurement width values and model system prediction to such an extent that deviate, whether the judgment bias value is in the adjustable extent of setting, if deviate is in the adjustable extent of setting, second of described model system introducing step (three) the actual measurement width value feeds back calculating, described feedback is calculated as: predicted width value * weight coefficient+(1.0-weight coefficient) * second actual measurement width value, and the difference of described feedback calculated value and the width value of the finished strip that will the produce secondary width controlled quentity controlled variable as described width control appliance is rolled the band steel that enters milling train, then return to step (three), loop, if in the adjustable extent of setting, described model system is not carried out the strip width correction to deviate, directly returns to step (three), loops.
If according to the width of the rolling made-up belt of difference be 1250mm under the prerequisite of same thickness, when producing the intermediate blank product of different size width, before its horizontal mill, width controlled quentity controlled variable of the wide equipment of control is X, the corresponding relation of X is as shown in the table:
Table 1
| The made-up belt width | A width controlled quentity controlled variable X | The intermediate products width |
| 1250mm | 50mm | 1200mm |
| 1250mm | 30mm | 1220mm |
| 1250mm | 20mm | 1230mm |
| 1250mm | 0mm | 1250mm |
| 1230mm | 50mm | 1180mm |
| 1230mm | 30mm | 1200mm |
| 1230mm | 20mm | 1210mm |
| 1230mm | 0mm | 1230mm |
| 1200mm | 50mm | 1150mm |
| 1200mm | 30mm | 1170mm |
| 1200mm | 20mm | 1180mm |
| 1200mm | 0mm | 1200mm |
If the width overshoot can be revised by the feedback width control method with interior at 35mm, otherwise the product of producing is defective :-35mm＜=(intermediate products width-final products width)＜=+35mm.
Embodiment 1
When producing the product of 1200mm, if model precomputation supplied materials made-up belt width is greater than actual measured width, as shown in Figure 3, if in Fig. 3, the width of the rolling made-up belt of model prediction is 1250mm, and before the real standard milling train, width measure device measuring result is 1200mm, model predication value is described greater than actual measured value, just illustrates that also actual made-up belt is narrower than the made-up belt of estimating.
If do not adopt width control method of the present invention, before horizontal mill, width controlled quentity controlled variable of the wide equipment of control is 50mm, because actual made-up belt is 1200mm, causing the intermediate products width of producing is 1150mm, width extent deviation-50mm, surpass the feedback regulation scope, cause final products defective.
according to width control method of the present invention, compare two values to such an extent that deviate and be 50mm, judge whether 50mm can control range tire out, if in can control range, model is introduced actual measured width and the model prediction width data is weighted calculating (weight coefficient is 0.6), 1250 * 0.6+ (1.0-0.6) * 1200=1230mm, model is controlled width controlled quentity controlled variable of wide equipment before adjusting horizontal mill, be reduced to 30mm by original 50mm, although the intermediate products of this moment are 1170mm, but in feedback control range 35mm, model can pass through feedback modifiers, thereby finally guarantee product 1200mm width quality control precision.
When producing the product of 1200mm, if model precomputation supplied materials made-up belt width is less than actual measured width, as shown in Figure 4, if in Fig. 4, the width of the rolling made-up belt of model prediction is 1200mm, and before the real standard milling train, width measure device measuring result is 1250mm, model predication value is described less than actual measured value, just illustrates that also actual made-up belt is wider than the made-up belt of estimating.
If do not adopt width control method of the present invention, before horizontal mill, width controlled quentity controlled variable of the wide equipment of control is 0mm, because actual made-up belt is 1250mm, causing the intermediate products width of producing is 1250mm, width extent deviation+50mm, surpass the feedback regulation scope, cause final products defective.
according to width control method of the present invention, compare two values to such an extent that deviate and be 50mm, judge whether 50mm can control range tire out, if in can control range, model is introduced actual measured width and the model prediction width data is weighted calculating (weight coefficient is 0.6), 1200 * 0.6+ (1.0-0.6) * 1250=1220mm, model is controlled width controlled quentity controlled variable of wide equipment before adjusting horizontal mill, increase to 20mm by original 0mm, although the intermediate products of this moment are 1230mm, but in feedback control range 35mm, model can pass through feedback modifiers, thereby finally guarantee product 1200mm width quality control precision.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (2)
1. the method controlled of a Hot Strip Width, be provided with width measure equipment before and after milling train, the width control appliance that milling train has comprises automatic control system, data collecting system, model system and communication system, it is characterized in that: described Hot Strip Width is controlled and is carried out according to the following steps:
(1) enter the actual measurement of first before milling train width value by the width measure device measuring band steel before described milling train, the first actual measurement width value is uploaded to described data collecting system, and described data collecting system is passed to described model system with the first actual measurement width value data;
(2) described model system compares the rolling made-up belt width value of step (one) first actual measurement width value and model system prediction to such an extent that deviate, whether the judgment bias value is in the adjustable extent of setting, if deviate is in the adjustable extent of setting, described model system the first actual measurement width value of introducing step () calculating that feedovers, described feedforward is calculated as: predicted width value * weight coefficient+(1.0-weight coefficient) * first actual measurement width value, and the difference of described feedforward calculated value and the width value of the finished strip that will produce a width controlled quentity controlled variable as described width control appliance is rolled the band steel that enters milling train, then enter next step, if in the adjustable extent of setting, described model system is not carried out the strip width correction to deviate, directly enters next step,
(3) the band steel is through after milling train, after described milling train, width measure device measuring band steel is through the actual measurement of second after milling train width value, described the second actual measurement width value is uploaded to described data collecting system, described data collecting system is passed to described model system with the second actual measurement width value data, judge whether width control is completed, the no finishing control of completing; If do not finish, enter step;
(4) described model system compares the rolling made-up belt width value of step (three) second actual measurement width values and model system prediction to such an extent that deviate, whether the judgment bias value is in the adjustable extent of setting, if deviate is in the adjustable extent of setting, second of described model system introducing step (three) the actual measurement width value feeds back calculating, described feedback is calculated as: predicted width value * weight coefficient+(1.0-weight coefficient) * second actual measurement width value, and the difference of described feedback calculated value and the width value of the finished strip that will the produce secondary width controlled quentity controlled variable as described width control appliance is rolled the band steel that enters milling train, then return to step (three), loop, if in the adjustable extent of setting, described model system is not carried out the strip width correction to deviate, directly returns to step (three), loops.
2. the method controlled of Hot Strip Width as claimed in claim 1, it is characterized in that: described weight coefficient is 0.6.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324948A (en) * | 2014-11-06 | 2015-02-04 | 东北大学 | Method for controlling width of rolled piece in rough rolling process of hot continuous rolling |
| CN104707869A (en) * | 2013-12-17 | 2015-06-17 | 上海梅山钢铁股份有限公司 | Hot rolling width model fast dynamic self-adapting method |
| CN104942019A (en) * | 2014-03-31 | 2015-09-30 | 宝山钢铁股份有限公司 | Automatic control method for width of steel strips during cold rolling |
| CN105013831A (en) * | 2015-06-18 | 2015-11-04 | 首钢京唐钢铁联合有限责任公司 | Strip steel width control method and strip steel width symmetrical control method |
| CN105327951A (en) * | 2015-11-11 | 2016-02-17 | 张家港浦项不锈钢有限公司 | Method for controlling tail gate hot roller seam width in seven-gate hot rolling production process of stainless steel plate |
| CN105583238A (en) * | 2016-01-25 | 2016-05-18 | 东北大学 | Hot-rolled strip steel width prediction method |
| CN105642676A (en) * | 2016-03-07 | 2016-06-08 | 首钢京唐钢铁联合有限责任公司 | Method for controlling width model by utilizing roll gap value of side guide plate |
| CN107486587A (en) * | 2016-06-13 | 2017-12-19 | 上海梅山钢铁股份有限公司 | A kind of thinned amount compensation process for improving shearing setting model control accuracy |
| CN108672502A (en) * | 2018-07-05 | 2018-10-19 | 河钢股份有限公司承德分公司 | Strip width control method, device and terminal device |
| CN108994086A (en) * | 2018-09-25 | 2018-12-14 | 首钢集团有限公司 | A kind of strip width feedback modifiers method and system |
| CN109926452A (en) * | 2019-04-16 | 2019-06-25 | 河北津西钢铁集团股份有限公司 | Course control method for use, process control equipment and terminal applied to steel rolling |
| CN112845615A (en) * | 2020-12-29 | 2021-05-28 | 中铝西南铝板带有限公司 | Method for compensating width of rolled plate shape of aluminum alloy strip |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS542963A (en) * | 1977-06-10 | 1979-01-10 | Hitachi Ltd | Controlling method for sheet width in hot finishing mill |
| JPS6268616A (en) * | 1985-09-20 | 1987-03-28 | Sumitomo Metal Ind Ltd | Plate width control method |
| JPS63180316A (en) * | 1987-01-22 | 1988-07-25 | Mitsubishi Heavy Ind Ltd | Plate width control method for hot strip mill |
| JPH05285516A (en) * | 1992-04-06 | 1993-11-02 | Nippon Steel Corp | Method for controlling plate width in hot rolling |
| JPH10277617A (en) * | 1997-04-07 | 1998-10-20 | Kawasaki Steel Corp | Width controller |
| JPH10286614A (en) * | 1997-04-15 | 1998-10-27 | Sumitomo Metal Ind Ltd | Method for controlling width in continuous hot rolling |
-
2011
- 2011-12-21 CN CN201110431519.1A patent/CN103170508B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS542963A (en) * | 1977-06-10 | 1979-01-10 | Hitachi Ltd | Controlling method for sheet width in hot finishing mill |
| JPS6268616A (en) * | 1985-09-20 | 1987-03-28 | Sumitomo Metal Ind Ltd | Plate width control method |
| JPS63180316A (en) * | 1987-01-22 | 1988-07-25 | Mitsubishi Heavy Ind Ltd | Plate width control method for hot strip mill |
| JPH05285516A (en) * | 1992-04-06 | 1993-11-02 | Nippon Steel Corp | Method for controlling plate width in hot rolling |
| JPH10277617A (en) * | 1997-04-07 | 1998-10-20 | Kawasaki Steel Corp | Width controller |
| JPH10286614A (en) * | 1997-04-15 | 1998-10-27 | Sumitomo Metal Ind Ltd | Method for controlling width in continuous hot rolling |
Non-Patent Citations (2)
| Title |
|---|
| 汤建民等: "宁波钢铁1780 测宽仪AWC 技术应用", 《全国冶金自动化信息网2011年年会论文集》, 31 May 2011 (2011-05-31), pages 345 - 347 * |
| 焦景民等: "攀钢1 4 5 0 m m 热连轧机自动宽度控制(A W C )技术", 《冶金自动化》, no. 03, 25 May 2006 (2006-05-25), pages 29 - 33 * |
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| CN104707869A (en) * | 2013-12-17 | 2015-06-17 | 上海梅山钢铁股份有限公司 | Hot rolling width model fast dynamic self-adapting method |
| CN104942019B (en) * | 2014-03-31 | 2017-04-05 | 宝山钢铁股份有限公司 | A kind of cold rolling of strip steel process Automatic control method of width |
| CN104942019A (en) * | 2014-03-31 | 2015-09-30 | 宝山钢铁股份有限公司 | Automatic control method for width of steel strips during cold rolling |
| CN104324948A (en) * | 2014-11-06 | 2015-02-04 | 东北大学 | Method for controlling width of rolled piece in rough rolling process of hot continuous rolling |
| CN104324948B (en) * | 2014-11-06 | 2016-04-06 | 东北大学 | A kind of rougher of hot strip mill process rolled piece width control method |
| CN105013831A (en) * | 2015-06-18 | 2015-11-04 | 首钢京唐钢铁联合有限责任公司 | Strip steel width control method and strip steel width symmetrical control method |
| CN105327951A (en) * | 2015-11-11 | 2016-02-17 | 张家港浦项不锈钢有限公司 | Method for controlling tail gate hot roller seam width in seven-gate hot rolling production process of stainless steel plate |
| CN105327951B (en) * | 2015-11-11 | 2018-01-09 | 张家港浦项不锈钢有限公司 | Tail passage hot roll seam width control method during a kind of passage hot rolling of stainless steel plate seven production |
| CN105583238A (en) * | 2016-01-25 | 2016-05-18 | 东北大学 | Hot-rolled strip steel width prediction method |
| CN105583238B (en) * | 2016-01-25 | 2017-06-16 | 东北大学 | A kind of Hot Strip Width Forecasting Methodology |
| CN105642676A (en) * | 2016-03-07 | 2016-06-08 | 首钢京唐钢铁联合有限责任公司 | Method for controlling width model by utilizing roll gap value of side guide plate |
| CN107486587A (en) * | 2016-06-13 | 2017-12-19 | 上海梅山钢铁股份有限公司 | A kind of thinned amount compensation process for improving shearing setting model control accuracy |
| CN108672502A (en) * | 2018-07-05 | 2018-10-19 | 河钢股份有限公司承德分公司 | Strip width control method, device and terminal device |
| CN108994086A (en) * | 2018-09-25 | 2018-12-14 | 首钢集团有限公司 | A kind of strip width feedback modifiers method and system |
| CN108994086B (en) * | 2018-09-25 | 2020-07-24 | 首钢集团有限公司 | Strip steel width feedback correction method |
| CN109926452A (en) * | 2019-04-16 | 2019-06-25 | 河北津西钢铁集团股份有限公司 | Course control method for use, process control equipment and terminal applied to steel rolling |
| CN112845615A (en) * | 2020-12-29 | 2021-05-28 | 中铝西南铝板带有限公司 | Method for compensating width of rolled plate shape of aluminum alloy strip |
| CN112845615B (en) * | 2020-12-29 | 2022-09-30 | 中铝西南铝板带有限公司 | Method for compensating width of rolled plate shape of aluminum alloy strip |
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