CN113649419A - Control method and system for comprehensive regulation and control of double-high-speed wire tail steel - Google Patents
Control method and system for comprehensive regulation and control of double-high-speed wire tail steel Download PDFInfo
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- CN113649419A CN113649419A CN202110768124.4A CN202110768124A CN113649419A CN 113649419 A CN113649419 A CN 113649419A CN 202110768124 A CN202110768124 A CN 202110768124A CN 113649419 A CN113649419 A CN 113649419A
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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
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- 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]
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Abstract
The invention discloses a control method and a system for comprehensive regulation and control of double-high-speed wire tail steel, which comprises the following steps: s1, acquiring the sleeve height of the front 4/5 in the process of passing one steel loop through steel in real time; s2, acquiring the sleeve height of a rear 1/5 steel passing process of a steel loop in real time; and S3, comparing the sleeve height of the rear 1/5 with the sleeve height of the front 4/5 in the steel passing process of the steel loop, calculating the ratio of the sleeve height of the rear 1/5 to the sleeve height of the front 4/5 in the steel passing process of the steel loop, and setting the descending amount of the sleeve height of the tail part according to the ratio. The control method and the system for the comprehensive regulation and control of the dual-high-speed wire tail steel can quickly, accurately, real-timely and simply control the production bottleneck problems of large sleeve drifting and the like at the tail part of the dual-high-speed wire loop.
Description
Technical Field
The invention relates to the technical field of steel production, in particular to a control method and a system for comprehensive regulation and control of double-high-speed wire tail steel.
Background
The high line of a steel rolling mill is designed into 2 production lines, namely a double high line, because the middle rolling is the single-rolling mill double-line rolling, the tension matching adjustment of the whole high-speed area is complex, the loop control adjustment is one of very important and critical links, the tail control of one steel in the whole adjustment control process is very critical, if the tail sleeve amount is not consumed in advance, the finish rolling can be performed in advance, the tail is remained after the finish rolling and the finish rolling, the steel pile containing the steel can be performed in the 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 can be reduced and deviates from the normal tolerance control range, the tail finished product of too many pieces of steel can be cut at the head-to-tail ring section, and therefore improvement is needed.
Disclosure of Invention
The invention aims to provide a control method and a control system for comprehensive regulation and control of double-high-wire tail steel, which can quickly, accurately, real-timely and simply control the production bottleneck problems of large sleeve swing and the like of the tail part of a double-high-wire loop by calculating the ratio of the sleeve height of rear 1/5 in the steel passing process of a steel loop to the sleeve height of front 4/5 in the steel passing process of a steel loop and setting the sleeve height descending amount of the tail part according to the ratio.
In order to solve the technical problem, the invention provides a control method and a system for comprehensive regulation and control of double-high-speed wire tail steel, which comprises the following steps:
s1, acquiring the sleeve height of the front 4/5 in the process of passing one steel loop through steel in real time;
s2, acquiring the sleeve height of a rear 1/5 steel passing process of a steel loop in real time;
step S3, comparing the sleeve height of the rear 1/5 with the sleeve height of the front 4/5 in the steel passing process of the steel loop, 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 descending amount of the sleeve height of the tail part according to the ratio;
if the ratio is larger than 1, setting the descending amount of the tail sleeve height to be 10% of the set sleeve height until the ratio is 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 is 1;
if the ratio is 1, the tail jacket height decrease amount is set to 7.5% of the set jacket height until the ratio is 1.
Preferably, in the step S2, the set height of the rear 1/5 in the process of passing one steel loop of the dual-wire through the steel and the set height of the front 4/5 in the process of passing one steel loop of the dual-wire through the steel are acquired in real time at a certain time interval t each time.
Preferably, the time interval t is 50 milliseconds.
Preferably, the method comprises the following steps: loop height detector and the automatically controlled engineer station of being connected with loop height detector, automatically controlled engineer station is including the high acquisition unit of cover, the high comparison unit of cover and the high decline volume regulating unit of afterbody cover:
the loop height detector is used for detecting the loop height of the rear 1/5 in the steel passing process of one steel loop and the loop height of the front 4/5 in the steel passing process of one steel loop;
the sleeve height acquisition unit is used for acquiring the sleeve height of 1/5 after one steel loop passes through the steel in the process and the sleeve height of 4/5 before one steel loop passes through the steel in the process, which are detected by the sleeve height detector;
the loop height comparison unit is used for comparing the loop height of the rear 1/5 in the steel passing process of the double-altitude steel loop and the loop height of the front 4/5 in the steel passing process of the steel loop, which are acquired currently, and judging the ratio of the loop height of the rear 1/5 in the steel passing process of the steel loop to the loop height of the front 4/5 in the steel passing process of the steel loop;
and 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 one steel loop with the sleeve height of the front 4/5 according to the current collection, calculating the ratio of the sleeve height of the rear 1/5 in the steel passing process of one steel loop to the sleeve height of the front 4/5 in the steel passing process of one 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 height analog quantity signal receiving module, the digital display loop detector identifies the loop height of the site through on-site real-time scanning and acquisition, and the loop height analog quantity signal is transmitted to the loop height analog quantity signal receiving module through a shielded cable.
According to the control method and the control system for comprehensive regulation and control of the double-altitude tail steel, the ratio of the rear 1/5 sleeve height to the front 4/5 sleeve height in the steel passing process of the currently collected one-steel loop is compared, the ratio of the rear 1/5 sleeve height in the steel passing process of the one-steel loop to the front 4/5 sleeve height in the steel passing process of the one-steel loop is calculated, the tail sleeve height descending amount is set according to the ratio, the production bottleneck problems of large sleeve swing and the like of the tail of the double-altitude loop can be quickly, accurately, real-timely and simply controlled, the tail sleeve amount is prevented from being not consumed in advance, the finish rolling is prevented from being performed, the tail is left, the pre-finish rolling and the finish rolling contain steel pile is prevented, the tail size is prevented from being reduced due to too fast consumption and too much tail sleeve amount is prevented from deviating from the normal tolerance control range.
Drawings
Fig. 1 is a schematic structural diagram of a control method for comprehensive regulation and control of double-high-speed wire tail steel.
Fig. 2 is a schematic structural diagram of a control system for comprehensive regulation and control of the double-high-speed wire tail steel.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, the invention provides a control method and a system for comprehensive regulation and control of dual-high-speed wire tail steel, comprising the following steps:
s1, acquiring the sleeve height of the front 4/5 in the process of passing one steel loop through steel in real time;
s2, acquiring the sleeve height of a rear 1/5 steel passing process of a steel loop in real time;
step S3, comparing the height of the rear 1/5 with the height of the front 4/5 in the steel passing process of the steel loop, calculating the ratio of the height of the rear 1/5 in the steel passing process of the steel loop to the height of the front 4/5 in the steel passing process of the steel loop, setting the height descending amount of the tail loop according to the ratio, specifically, the height descending amount of the tail loop of the double-high-speed line loop is the ratio of the difference between the height set value of the tail loop of the double-high-speed line loop and the height set value of the tail loop of the double-high-speed line loop to the height set value of the tail loop of the double-high-speed line loop, and adjusting the height descending amount of the tail loop of the double-high-speed line loop by adjusting the height of the tail loop of the double-high-speed line loop:
if the ratio of the currently collected sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is larger than 1, setting the tail sleeve height reduction amount to be 10% of the set sleeve height until the tail sleeve height is stable in the steel passing process of the one steel loop, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is 1;
if the ratio of the currently collected sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is less than 1, setting the tail sleeve height reduction amount to be 5% of the set sleeve height until the tail sleeve height is stable in the steel passing process of the one steel loop, namely the ratio of the sleeve height of the rear 1/5 in the steel passing process of the one steel loop to the sleeve height of the front 4/5 in the steel passing process of the one steel loop is 1;
if the ratio of the sleeve height of the rear 1/5 in the steel passing process of the currently collected one-steel loop to the sleeve height of the front 4/5 in the steel passing process of the one-steel loop is 1, setting the height reduction amount of the tail sleeve to be 7.5% of the set sleeve height, and keeping the tail sleeve high and stable in the steel passing process of the one-steel loop, namely keeping the ratio of the sleeve height of the rear 1/5 in the steel passing process of the one-steel loop to the sleeve height of the front 4/5 in the steel passing process of the one-steel loop to 1;
the height reduction of the double-high-speed wire loop tail part is adjusted once by a%, the value of a is 10, 5 or 7.5, the adjusting mode greatly improves the adjusting precision of the height reduction of the double-high-speed wire loop tail part, and the comprehensive regulation and control of the double-high-speed wire tail steel can be more accurately controlled.
The method comprises the steps of collecting the rear 1/5 loop height of a double-altitude steel loop in the steel passing process and the front 4/5 loop height of a steel loop in the steel passing process in real time at a certain time interval t each time, wherein the time interval t is 50 milliseconds, collecting the rear 1/5 loop height of the double-altitude steel loop in the steel passing process and the front 4/5 loop height of the steel loop in the steel passing process at the certain time interval t each time, and properly reducing system calculation amount while realizing the real-time collection of the rear 1/5 loop height of the double-altitude steel loop in the steel passing process and the front 4/5 loop height of the steel loop in the steel passing process.
The method comprises the following steps: loop height detector and the automatically controlled engineer station of being connected with loop height detector, automatically controlled engineer station is including the high acquisition unit of cover, the high comparison unit of cover and the high decline volume regulating unit of afterbody cover:
the loop height detector is used for detecting the loop height of the rear 1/5 in the steel passing process of one steel loop and the loop height of the front 4/5 in the steel passing process of one steel loop;
the sleeve height acquisition unit is used for acquiring the sleeve height of 1/5 after one steel loop passes through the steel in the process and the sleeve height of 4/5 before one steel loop passes through the steel in the process, which are detected by the sleeve height detector;
the loop height comparison unit is used for comparing the loop height of the rear 1/5 in the steel passing process of the double-altitude steel loop and the loop height of the front 4/5 in the steel passing process of the steel loop, which are acquired currently, and judging the ratio of the loop height of the rear 1/5 in the steel passing process of the steel loop to the loop height of the front 4/5 in the steel passing process of the steel loop;
and 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 one steel loop with the sleeve height of the front 4/5 according to the current collection, calculating the ratio of the sleeve height of the rear 1/5 in the steel passing process of one steel loop to the sleeve height of the front 4/5 in the steel passing process of one 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 height analog quantity signal receiving module, the digital display loop detector identifies the loop height of a site through on-site real-time scanning and acquisition, and the loop height analog quantity signal is transmitted to the loop height analog quantity signal receiving module through a shielded cable.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A control method for comprehensive regulation and control of double-high-speed wire tail steel is characterized by comprising the following steps:
s1, acquiring the sleeve height of the front 4/5 in the process of passing one steel loop through steel in real time;
s2, acquiring the sleeve height of a rear 1/5 steel passing process of a steel loop in real time;
step S3, comparing the sleeve height of the rear 1/5 with the sleeve height of the front 4/5 in the steel passing process of the steel loop, 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 descending amount of the sleeve height of the tail part according to the ratio;
if the ratio is larger than 1, setting the descending amount of the tail sleeve height to be 10% of the set sleeve height until the ratio is 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 is 1;
if the ratio is 1, the tail jacket height decrease amount is set to 7.5% of the set jacket height until the ratio is 1.
2. The method for controlling comprehensive regulation and control of the steel of the tail of the twin-wire line according to claim 1, wherein in the step S2, the set height of 1/5 in the steel passing process of the steel loop of the twin-wire line and the set height of 4/5 in the steel passing process of the steel loop of one line are collected in real time at a certain time interval t each time.
3. The method for controlling comprehensive regulation and control of the double-high-wire tail steel as claimed in claim 2, wherein the time interval t is 50 milliseconds.
4. A control system for comprehensive regulation and control of double-high-speed wire tail steel, which is applied to the control method for comprehensive regulation and control of double-high-speed wire tail steel according to any one of claims 1 to 3, and is characterized by comprising the following steps: loop height detector and the automatically controlled engineer station of being connected with loop height detector, automatically controlled engineer station is including the high acquisition unit of cover, the high comparison unit of cover and the high decline volume regulating unit of afterbody cover:
the loop height detector is used for detecting the loop height of the rear 1/5 in the steel passing process of one steel loop and the loop height of the front 4/5 in the steel passing process of one steel loop;
the sleeve height acquisition unit is used for acquiring the sleeve height of 1/5 after one steel loop passes through the steel in the process and the sleeve height of 4/5 before one steel loop passes through the steel in the process, which are detected by the sleeve height detector;
the loop height comparison unit is used for comparing the loop height of the rear 1/5 in the steel passing process of the double-altitude steel loop and the loop height of the front 4/5 in the steel passing process of the steel loop, which are acquired currently, and judging the ratio of the loop height of the rear 1/5 in the steel passing process of the steel loop to the loop height of the front 4/5 in the steel passing process of the steel loop;
and 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 one steel loop with the sleeve height of the front 4/5 according to the current collection, calculating the ratio of the sleeve height of the rear 1/5 in the steel passing process of one steel loop to the sleeve height of the front 4/5 in the steel passing process of one steel loop, and setting the tail sleeve height descending amount according to the ratio.
5. The control system for comprehensive regulation and control of the dual-high-speed wire tail steel as claimed in claim 4, wherein the loop height detector comprises a digital display loop detector and a loop height analog signal receiving module, the digital display loop detector identifies the loop height on site through on-site real-time scanning and acquisition, and the loop height analog signal is transmitted to the loop height analog signal receiving module through a shielded cable.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115582435A (en) * | 2022-09-07 | 2023-01-10 | 阳春新钢铁有限责任公司 | System and method for visually adjusting rolling tension in double-high-speed wire rough and medium rolling |
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