CN113649419B - Control method and system for comprehensively regulating and controlling double-high-line tail steel - Google Patents
Control method and system for comprehensively regulating and controlling double-high-line tail steel Download PDFInfo
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- CN113649419B CN113649419B CN202110768124.4A CN202110768124A CN113649419B CN 113649419 B CN113649419 B CN 113649419B CN 202110768124 A CN202110768124 A CN 202110768124A CN 113649419 B CN113649419 B CN 113649419B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
- B21B37/50—Tension control; Compression control by looper control
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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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a control method and a system for comprehensively regulating and controlling double-high-line tail steel, comprising the following steps: s1, collecting the sleeve height of the first 4/5 of the steel sleeve in the steel passing process of one steel loop in real time; s2, collecting a steel loop in real time, wherein the sleeve height is 1/5 of that after the steel loop passes through the steel process; and S3, comparing the sleeve height of the steel loop at the rear 1/5 in the steel passing process with the sleeve height of the steel loop at the front 4/5, calculating the ratio of the sleeve height of the steel loop at the rear 1/5 in the steel passing process to the sleeve height of the steel loop at the front 4/5 in the steel passing process, and setting the tail sleeve height descending amount according to the ratio. The control method and the system for comprehensively regulating and controlling the double-high-line tail steel can rapidly, accurately, real-timely and simply control the production bottleneck problems of large-sleeve tail swing and the like of the double-high-line loop tail.
Description
Technical Field
The invention relates to the technical field of steel production, in particular to a control method and a system for comprehensively regulating and controlling double-high-line tail steel.
Background
The high-speed line of the steel mill is designed into 2 production lines, namely double high lines, because the middle rolling is single rolling mill double line rolling, the tension matching adjustment of the whole high-speed area is complex, the loop amount control is adjusted to one of very important and key links, the tail control of one steel is very key in the whole adjustment control process, if the tail sleeve amount is not consumed in advance, the tail is remained by the pre-finish rolling and the finish rolling so as to lead to the steel containing stack of the pre-finish rolling and the finish rolling, the processing time is very long, if the tail sleeve amount is consumed too fast and too much, the tail size is reduced and deviates from the normal tolerance control range, and the tail finished product of too many steel needs to be cut off in the head-tail cutting link, so that improvement is needed.
Disclosure of Invention
The invention aims to provide a control method and a system for comprehensively regulating and controlling double-high-line tail steel, which can rapidly, accurately, real-time and simply control the production bottleneck problems such as large sleeve tail lifting and the like of the double-high-line loop tail by calculating the ratio of the sleeve height of 1/5 after one steel loop in the steel passing process to the sleeve height of 4/5 before one steel loop in the steel passing process and setting the tail sleeve height descending amount according to the ratio.
In order to solve the technical problems, the invention provides a control method and a system for comprehensively regulating and controlling double-high-line tail steel, comprising the following steps:
s1, collecting the sleeve height of the first 4/5 of the steel sleeve in the steel passing process of one steel loop in real time;
s2, collecting a steel loop in real time, wherein the sleeve height is 1/5 of that after the steel loop passes through the steel process;
s3, comparing the sleeve height of the rear 1/5 of the steel loop in the steel passing process with the sleeve height of the front 4/5 of the steel loop, calculating the ratio of the sleeve height of the rear 1/5 of the steel loop in the steel passing process to the sleeve height of the front 4/5 of the steel loop in the steel passing process, and setting the tail sleeve height descending amount according to the ratio;
if the ratio is more than 1, setting the descending amount of the tail sleeve height to be 10% of the set sleeve height until the ratio=1;
if the ratio is less than 1, setting the descending amount of the tail sleeve height to be 5% of the set sleeve height until the ratio=1;
if the ratio=1, the amount of decrease in the tail sleeve height is set to 7.5% of the set sleeve height.
Preferably, in the step S1 and the step S2, the sleeve height of 1/5 of the double-high line one steel loop in the steel passing process and the sleeve height of 4/5 of the double-high line one steel loop in the steel passing process are collected in real time at a certain time interval t each time.
Preferably, the time interval t is 50 milliseconds.
A control system for comprehensively regulating and controlling double-high-line tail steel, which is applied to the control method for comprehensively regulating and controlling double-high-line tail steel, comprises the following steps: the loop height detector and the electric control engineer station connected with the loop height detector, wherein the electric control engineer station comprises a loop height acquisition unit, a loop height comparison unit and a tail loop height descending amount adjusting unit:
the loop height detector is used for detecting the loop height of 1/5 of the steel in the process of passing the steel by one steel loop and the loop height of 4/5 of the steel in the process of passing the steel by one steel loop;
the loop height acquisition unit is used for acquiring the loop height of 1/5 of the loop height of one steel in the steel passing process detected by the loop height detector and the loop height of 4/5 of the loop height of the other steel in the steel passing process;
the sleeve height comparison unit is used for comparing the sleeve height of the rear 1/5 of the currently acquired double-high-line one steel loop in the steel passing process and the sleeve height of the front 4/5 of the one steel loop in the steel passing process, and judging the ratio of the sleeve height of the rear 1/5 of the one steel loop in the steel passing process to the sleeve height of the front 4/5 of the one steel loop in the steel passing process;
the tail sleeve height descending amount adjusting unit is used for comparing the sleeve height of the rear 1/5 in the steel passing process of the currently acquired steel loop with the sleeve height of the front 4/5, calculating the ratio of the sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop, and setting the tail sleeve height descending amount according to the ratio.
Preferably, the loop height detector comprises a digital display loop detector and a loop high analog signal receiving module, wherein the digital display loop detector is used for identifying the loop height of a site through real-time scanning and acquisition of the site, and a loop high analog signal is transmitted to the loop high analog signal receiving module through a shielded cable.
According to the control method and the system for comprehensively regulating and controlling the double-high-line tail steel, the ratio of the post 1/5 sleeve height of one steel loop to the post 4/5 sleeve height of the steel loop in the steel passing process is calculated through comparing the post 1/5 sleeve height of the current collected one steel loop with the post 4/5 sleeve height of the steel loop in the steel passing process, the tail sleeve height descending amount is set according to the ratio, the production bottleneck problems such as large sleeve tail lifting and the like of the double-high-line loop can be rapidly, accurately, in real time and simply controlled, the tail sleeve amount is prevented from being consumed in advance, the pre-finish rolling and the finish rolling tail are caused, the steel pile containing in the pre-finish rolling and the finish rolling is prevented from being consumed too fast, too much tail size is prevented from being reduced, and the tail size is prevented from deviating from a normal tolerance control range.
Drawings
FIG. 1 is a schematic structural diagram of a control method for comprehensively regulating and controlling double high-speed rail tail steel.
FIG. 2 is a schematic structural diagram of a control system for integrated regulation of dual high-speed rail tail steel according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, the invention provides a control method and a system for comprehensively controlling double-high-speed rail tail steel, comprising the following steps:
s1, collecting the sleeve height of the first 4/5 of the steel sleeve in the steel passing process of one steel loop in real time;
s2, collecting a steel loop in real time, wherein the sleeve height is 1/5 of that after the steel loop passes through the steel process;
step S3, comparing the sleeve height of the rear 1/5 of the steel loop in the steel passing process with the sleeve height of the front 4/5 of the steel loop, calculating the ratio of the sleeve height of the rear 1/5 of the steel loop in the steel passing process to the sleeve height of the front 4/5 of the steel loop in the steel passing process, setting the tail loop height descending amount according to the ratio, specifically, the dual-high line loop tail loop height descending amount is the ratio of the difference of the dual-high line loop tail loop height setting value subtracted by the dual-high line loop tail loop height setting value to the dual-high line loop height setting value, and adjusting the dual-high line loop tail loop height descending amount by adjusting the dual-high line loop tail loop height:
if the ratio of the sleeve height of the rear 1/5 in the steel passing process of the currently acquired steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop is more than 1, setting the descending amount of the tail sleeve height to be 10% of the set sleeve height until the tail sleeve height in the steel passing process of the steel loop is stable, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop=1;
if the ratio of the sleeve height of the rear 1/5 in the steel passing process of the currently acquired steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop is less than 1, setting the descending amount of the tail sleeve height to be 5% of the set sleeve height until the tail sleeve height in the steel passing process of the steel loop is stable, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop=1;
if the ratio of the sleeve height of the rear 1/5 in the steel passing process of the currently acquired steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop is=1, setting the descending amount of the tail sleeve height to be 7.5% of the set sleeve height, and keeping the tail sleeve height of the steel loop stable in the steel passing process, namely keeping the ratio of the sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop=1;
the high descending amount of the tail sleeve of the double-high-line loop is regulated once by a percent, and the value of a is 10, 5 or 7.5.
The method comprises the steps of collecting the sleeve height of the rear 1/5 of the double-high-line one-steel loop steel passing process and the sleeve height of the front 4/5 of the one-steel loop steel passing process in real time at a certain time interval t each time, wherein the time interval t is 50 milliseconds, collecting the sleeve height of the rear 1/5 of the double-high-line one-steel loop steel passing process and the sleeve height of the front 4/5 of the one-steel loop steel passing process at a certain time interval t each time, and properly reducing the calculated amount of the system while realizing the real-time collection of the sleeve height of the rear 1/5 of the double-high-line one-steel loop steel passing process and the sleeve height of the front 4/5 of the one-steel loop steel passing process.
A control system for comprehensively regulating and controlling double-high-line tail steel, which is applied to the control method for comprehensively regulating and controlling double-high-line tail steel, comprises the following steps: the loop height detector and the electric control engineer station connected with the loop height detector comprise a loop height acquisition unit, a loop height comparison unit and a tail loop height descending amount adjusting unit:
the loop height detector is used for detecting the loop height of 1/5 of the steel in the process of passing the steel by one steel loop and the loop height of 4/5 of the steel in the process of passing the steel by one steel loop;
the loop height acquisition unit is used for acquiring the loop height of 1/5 of the loop height of one steel in the steel passing process detected by the loop height detector and the loop height of 4/5 of the loop height of the other steel in the steel passing process;
the sleeve height comparison unit is used for comparing the sleeve height of the rear 1/5 of the currently acquired double-high-line one steel loop in the steel passing process and the sleeve height of the front 4/5 of the one steel loop in the steel passing process, and judging the ratio of the sleeve height of the rear 1/5 of the one steel loop in the steel passing process to the sleeve height of the front 4/5 of the one steel loop in the steel passing process;
the tail sleeve height descending amount adjusting unit is used for comparing the sleeve height of the rear 1/5 in the steel passing process of the currently acquired steel loop with the sleeve height of the front 4/5, calculating the ratio of the sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop, and setting the tail sleeve height descending amount according to the ratio.
The loop height detector comprises a digital display loop detector and a loop high analog signal receiving module, wherein the digital display loop detector is used for identifying the loop height of a site through real-time scanning and acquisition of the site, and the loop high analog signal is transmitted to the loop high analog signal receiving module through a shielded cable.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather utilizing equivalent structural changes made in the present invention description and drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (5)
1. The control method for comprehensively regulating and controlling the double-high-line tail steel is characterized by comprising the following steps of:
s1, collecting the sleeve height of the first 4/5 of the steel sleeve in the steel passing process of one steel loop in real time;
s2, collecting a steel loop in real time, wherein the sleeve height is 1/5 of that after the steel loop passes through the steel process;
s3, comparing the sleeve height of the rear 1/5 of the steel loop in the steel passing process with the sleeve height of the front 4/5 of the steel loop, calculating the ratio of the sleeve height of the rear 1/5 of the steel loop in the steel passing process to the sleeve height of the front 4/5 of the steel loop in the steel passing process, and setting the tail sleeve height descending amount according to the ratio;
if the ratio is more than 1, setting the descending amount of the tail sleeve height to be 10% of the set sleeve height until the ratio=1;
if the ratio is less than 1, setting the descending amount of the tail sleeve height to be 5% of the set sleeve height until the ratio=1;
if the ratio=1, the amount of decrease in the tail sleeve height is set to 7.5% of the set sleeve height.
2. The control method for comprehensively controlling double-high-line tail steel according to claim 1, wherein in the step S1 and the step S2, the sleeve height of 1/5 after the double-high-line one steel loop passing process and the sleeve height of 4/5 before the one steel loop passing process are collected in real time at a certain time interval t each time.
3. The control method for comprehensively controlling the double-high-speed tail steel according to claim 2, wherein the time interval t is 50 milliseconds.
4. A control system for comprehensive regulation of dual-high-speed rail tail steel, applying the control method for comprehensive regulation of dual-high-speed rail tail steel according to any one of claims 1 to 3, comprising: the loop height detector and the electric control engineer station connected with the loop height detector, wherein the electric control engineer station comprises a loop height acquisition unit, a loop height comparison unit and a tail loop height descending amount adjusting unit:
the loop height detector is used for detecting the loop height of 1/5 of the steel in the process of passing the steel by one steel loop and the loop height of 4/5 of the steel in the process of passing the steel by one steel loop;
the loop height acquisition unit is used for acquiring the loop height of 1/5 of the loop height of one steel in the steel passing process detected by the loop height detector and the loop height of 4/5 of the loop height of the other steel in the steel passing process;
the sleeve height comparison unit is used for comparing the sleeve height of the rear 1/5 of the currently acquired double-high-line one steel loop in the steel passing process and the sleeve height of the front 4/5 of the one steel loop in the steel passing process, and judging the ratio of the sleeve height of the rear 1/5 of the one steel loop in the steel passing process to the sleeve height of the front 4/5 of the one steel loop in the steel passing process;
the tail sleeve height descending amount adjusting unit is used for comparing the sleeve height of the rear 1/5 in the steel passing process of the currently acquired steel loop with the sleeve height of the front 4/5, calculating the ratio of the sleeve height of the rear 1/5 in the steel passing process of the steel loop to the sleeve height of the front 4/5 in the steel passing process of the steel loop, and setting the tail sleeve height descending amount according to the ratio.
5. The control system for comprehensively regulating and controlling double-high-line tail steel according to claim 4, wherein the loop height detector comprises a digital display loop detector and a loop high analog signal receiving module, the digital display loop detector is used for identifying the loop height of a site through real-time scanning and acquisition of the site, and a loop high analog signal is transmitted to the loop high analog signal receiving module through a shielded cable.
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| JP2899459B2 (en) * | 1991-11-08 | 1999-06-02 | 株式会社東芝 | Looper multivariable controller |
| CN103920720B (en) * | 2013-01-14 | 2016-01-20 | 宝山钢铁股份有限公司 | A kind of strip tension dynamic control method based on cover amount deviation and control system thereof |
| CN104307884B (en) * | 2014-09-03 | 2016-04-27 | 山西太钢不锈钢股份有限公司 | Hot continuous rolling silicon steel afterbody kink conforms to a conventional pattern control method |
| CN106001127B (en) * | 2016-05-30 | 2018-01-23 | 陕钢集团汉中钢铁有限责任公司 | A kind of online minus deviation control guidance method in steel process |
| CN106180212B (en) * | 2016-07-01 | 2018-11-16 | 江苏永钢集团有限公司 | A kind of intelligent adjustment control method of looper control system and loop length |
| CN106568408A (en) * | 2016-09-30 | 2017-04-19 | 湖北工业大学 | Finishing line strip steel loop height detection method |
| CN106734235B (en) * | 2016-12-14 | 2019-07-05 | 四川德胜集团钒钛有限公司 | A kind of loop covers high control method |
| CN107486472B (en) * | 2017-09-12 | 2019-07-02 | 首钢集团有限公司 | A kind of loop control method |
| CN109772904A (en) * | 2019-01-21 | 2019-05-21 | 山东钢铁股份有限公司 | Hot-strip loop adjusts system and method |
| CN110280598B (en) * | 2019-07-19 | 2020-11-13 | 北京宇轩智能科技有限公司 | Intelligent steel rolling intelligent loop pulling control method |
| CN110773584B (en) * | 2019-10-19 | 2021-05-07 | 涿州北方重工设备设计有限公司 | Method and system for controlling internal tension of double-loop of production line |
| CN112756404B (en) * | 2020-11-23 | 2022-04-01 | 阳春新钢铁有限责任公司 | Precise and quantitative automatic control system and control method for non-cold section of production head of high-speed wire rod |
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