CN114990325B - Strip steel loop control method and device - Google Patents
Strip steel loop control method and device Download PDFInfo
- Publication number
- CN114990325B CN114990325B CN202210595378.5A CN202210595378A CN114990325B CN 114990325 B CN114990325 B CN 114990325B CN 202210595378 A CN202210595378 A CN 202210595378A CN 114990325 B CN114990325 B CN 114990325B
- Authority
- CN
- China
- Prior art keywords
- strip steel
- traction
- loop
- residual
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 184
- 239000010959 steel Substances 0.000 title claims abstract description 184
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000000137 annealing Methods 0.000 claims abstract description 103
- 238000004519 manufacturing process Methods 0.000 claims abstract description 58
- 238000003466 welding Methods 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 25
- 238000004590 computer program Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 238000005496 tempering Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- 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 strip steel loop control method and a strip steel loop control device, which are applied to an annealing production line, wherein the method comprises the following steps: obtaining the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop; obtaining the residual traction time of the traction treatment equipment for traction of the residual strip steel; obtaining a current time difference according to the residual target time and the residual traction time; judging whether the current time difference is smaller than a preset time or not; if yes, controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state; if not, controlling the annealing production line to run at the current speed. The control method carries out corresponding control through the judgment of the current time difference and the preset time, so that the strip steel loop can be automatically and stably and rapidly operated to a target state in the annealing process of the annealing production line, and the precise control of the strip steel loop is realized.
Description
Technical Field
The application relates to the technical field of strip steel loop control, in particular to a strip steel loop control method and device.
Background
The annealed products of the continuous annealing production line of the cold rolling mill cover various steel types such as low carbon steel, plain carbon steel, high-strength steel and the like, the thickness range of the products is 0.4-2.5mm, and the width of the finished products is 750-1580 mm. Related equipment of the annealing production line is mainly divided into an uncoiler, a welding machine, a cleaning machine, an inlet loop, an annealing furnace, an outlet loop, a leveling machine, an oiling machine, a coiling machine and the like in sequence, wherein the uncoiler mainly acts to uncoil strip steel, the cleaning machine mainly acts to clean emulsion, dirty dirt, scrap iron and the like on the surface of the strip steel, the inlet loop and the outlet loop mainly act as strip steel loops to store the strip steel, normal speed production of the annealing furnace is guaranteed, a buffer effect is achieved, normal production of a process section in the same welding is guaranteed, and the normal state of the process section is in a full sleeve process.
However, in actual application, the running speed of the annealing production line is based on the annealing furnace, and the running speed of the strip steel loop needs to be regulated by manual control, so that automatic and precise control cannot be performed. For example, in the inlet loop, after the welding machine finishes welding the front and rear coiled steel bands, the speed of the uncoiler is increased, the inlet loop is in a sleeve filling state, the sleeve filling speed at the moment is generally set by an operator according to experience, and after the sleeve filling speed reaches 100%, the speed of the uncoiler, the speed of the inlet loop and the speed of the annealing furnace reach balance, and the production is normal. However, once the sleeve punching speed set by the operator is low, namely, under the condition that sleeve filling is not completed, namely, welding of the next coil of strip steel is required, the inlet loop amount does not reach 100%, the productivity requirement of the annealing furnace cannot be completely met, and the production line is at risk of stopping. The operator has higher setting speed, and the cleaning of dirt on the surface of the strip steel is not easy because the strip steel passes through the cleaning section quickly.
Therefore, how to realize the accurate control of the strip steel loop is a technical problem to be solved at present.
Disclosure of Invention
The strip steel loop control method and device provided by the invention realize the accurate control of the strip steel loop.
The embodiment of the invention provides the following scheme:
in a first aspect, an embodiment of the present invention provides a strip steel loop control method, applied to an annealing production line, where the annealing production line includes a traction treatment device, a strip steel loop, and an annealing furnace, where the traction treatment device is used for welding cleaning before annealing the strip steel or leveling oiling after annealing, and the method includes:
obtaining the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop;
obtaining the residual traction time of the traction treatment equipment for traction of the residual strip steel;
obtaining a current time difference according to the residual target time and the residual traction time;
judging whether the current time difference is smaller than a preset time or not;
if yes, controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state;
if not, controlling the annealing production line to run at the current speed.
In an alternative embodiment, the traction treatment device is used for welding and cleaning before annealing the traction strip steel, the strip steel loop is an inlet loop connecting an outlet of the traction treatment device and an inlet of the annealing furnace, the target state is a full-load state of the strip steel loop, and the obtaining the remaining target time for the strip steel loop to reach the target state includes:
acquiring the inlet loop amount and the inlet loop drawing speed of the inlet loop;
the uncoiling traction speed of an uncoiler in the traction treatment equipment is obtained;
and obtaining the residual target time of the inlet loop according to the inlet loop amount, the inlet drawing speed and the uncoiling traction speed.
In an alternative embodiment, after the obtaining the remaining target time of the inlet loop according to the inlet loop amount, the inlet pull-in speed and the unwinding traction speed, the method further comprises:
acquiring a preset full load of the full load state;
and updating the residual target time according to the preset full capacity.
In an alternative embodiment, said obtaining said remaining target time of said inlet loop from said inlet loop amount, said inlet pull-in speed and said unwind pull-out speed comprises:
according to the formulaObtaining the residual target time, wherein a is the inlet loop amount, v is the inlet loop speed, v 0 And (3) the uncoiling traction speed.
In an alternative embodiment, the traction treatment device is used for welding cleaning before annealing the traction strip steel, and the obtaining the residual traction time of the traction treatment device for traction of the residual strip steel comprises the following steps:
the uncoiling traction speed and the current residual strip steel of an uncoiler in the traction treatment equipment are obtained;
and obtaining the residual traction time of the uncoiler according to the uncoiling traction speed and the current residual strip steel.
In an alternative embodiment, the target state is a full load state of the strip loop, and the preset time is 30-60 seconds.
In an alternative embodiment, the traction treatment device is used for leveling and oiling after annealing the traction strip steel, the strip steel loop is an outlet loop connecting the outlet of the annealing furnace and the inlet of the traction treatment device, the target state is an empty state of the strip steel loop, and the obtaining the remaining target time for the strip steel loop to reach the target state comprises:
obtaining the outlet loop amount and the outlet loop drawing speed of the outlet loop;
acquiring the coiling traction speed of a coiling machine in the traction treatment equipment;
and obtaining the residual target time of the outlet loop according to the outlet loop amount, the outlet drawing speed and the coiling traction speed.
In a second aspect, an embodiment of the present invention further provides a strip steel loop control device, applied to an annealing production line, where the annealing production line includes a traction treatment device, a strip steel loop, and an annealing furnace, where the traction treatment device is used for traction of welding cleaning before annealing of the strip steel or leveling oiling after annealing, and the device includes:
the first acquisition module is used for acquiring the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop;
the second acquisition module is used for acquiring the residual traction time of the residual strip steel which is drawn by the traction processing equipment;
the first obtaining module is used for obtaining a current time difference according to the residual target time and the residual traction time;
the judging module is used for judging whether the current time difference is smaller than a preset time;
the first control module is used for controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state when the current time difference is smaller than a preset time;
and the second control module is used for controlling the annealing production line to run at the current speed when the current time difference is not smaller than the preset time.
In a third aspect, embodiments of the present invention also provide an electronic device comprising a processor and a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the electronic device to perform the steps of the method of any one of the first aspects.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, implements the steps of the method according to any of the first aspects.
Compared with the prior art, the strip steel loop control method and device provided by the invention have the following advantages:
the strip steel loop control method is applied to an annealing production line, when the strip steel is subjected to welding cleaning before annealing or leveling oiling after annealing in the annealing production line, the residual target time of the strip steel loop reaching a target state is obtained, the residual traction time of the traction treatment equipment for traction of the residual strip steel is obtained, the current time difference is obtained according to the residual target time and the residual traction time, when the current time difference is smaller than the preset time, the current state distance of the strip steel loop is indicated to be more delayed when reaching the target state operation speed, and the annealing production line is controlled to operate at the highest speed until the strip steel loop reaches the target state; when the current time difference is not less than the preset time, the current state distance of the strip steel loop reaches the target state operation speed, the annealing production line is controlled to operate at the current speed, the strip steel loop can be automatically and stably and quickly operated to the target state in the annealing process through the judgment of the current time difference and the preset time, the accurate control of the strip steel loop is realized, the shutdown times of the annealing production line can be reduced, the strip steel cleaning quality is improved, and the service life and the production efficiency of the annealing production line are improved.
Drawings
In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present description, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a control method of a strip steel loop according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a partial annealing line according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a strip steel loop control device according to an embodiment of the present invention.
Reference numerals illustrate: 1-first uncoiler, 2-first strip steel, 3-second uncoiler, 4-second strip steel, 5-welding machine, 6-cleaning machine and 7-inlet loop.
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 apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the embodiments of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a strip steel loop control method provided by an embodiment of the present invention, which is applied to an annealing production line, wherein the annealing production line includes a traction treatment device, a strip steel loop and an annealing furnace, the traction treatment device is used for welding cleaning before annealing of a traction strip steel or leveling oiling after annealing, and the method includes:
s11, obtaining the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop.
Specifically, in the annealing production line of the strip steel, the strip steel is welded and cleaned before annealing, emulsion, dirty dirt, scrap iron and the like on the surface of the strip steel are cleaned, and then the strip steel is coiled after being annealed by an annealing furnace, flattened and oiled. When the traction treatment equipment is used for cleaning welding before annealing of the traction strip steel, referring to fig. 2, the traction treatment equipment comprises a first uncoiler 1, a second uncoiler 3, a welding machine 5 and a cleaning machine 6, the strip steel loop is an inlet loop 7, the first uncoiler 1 is used for uncoiling the first strip steel 2, the second uncoiler 3 is used for uncoiling the second strip steel 4, and the welding machine 5 is used for welding the first strip steel 2 and the second strip steel 4 end to end so that an annealing production line continuously produces.
It can be understood that when the traction treatment device is used for welding cleaning before the traction strip annealing, the target state of the strip loop is a full load state, the remaining target time is the time from the current time of the inlet loop 7 to the time of reaching 100% of the full load amount, and the full load state can meet the continuous production of the annealing furnace, even if the first strip 2 and the second strip 4 are welded, enough strip is still provided in the inlet loop 7 for annealing treatment; when the traction treatment equipment is used for leveling and oiling after the annealing of the strip steel, the target state required by the strip steel loop is in an idle state, and the residual target time is the time from the current time of the outlet loop to the time when the sleeve filling amount reaches 0%, so that the strip steel subjected to annealing, leveling and oiling is quickly rolled, and the backlog of the strip steel is reduced.
In a specific embodiment, the traction treatment device is used for welding and cleaning before the traction of the strip steel is annealed, the strip steel loop is an inlet loop connecting an outlet of the traction treatment device and an inlet of the annealing furnace, the target state is a full-load state of the strip steel loop, and the residual target time for the strip steel loop to reach the target state is obtained, and the method comprises the following steps:
acquiring an inlet loop amount and an inlet loop drawing speed of an inlet loop; the uncoiling traction speed of an uncoiler in traction treatment equipment is obtained; and obtaining the residual target time of the inlet loop according to the inlet loop amount, the inlet loop drawing speed and the unwinding traction speed.
Specifically, the inlet loop amount is the storage amount of the strip steel in the inlet loop currently, and the strip steel which can be stored in the inlet loop has a certain upper limit, so that the inlet loop amount can be represented by the percentage of the current loop amount to the total loop amount; the inlet sleeve drawing speed is the running speed of the strip steel at the outlet of the inlet sleeve, namely the speed of the strip steel entering the annealing furnace from the inlet sleeve. The inlet loop quantity and the inlet loop drawing speed can be obtained through a sensor on an annealing production line, the structure of the inlet loop comprises two groups of parallel rotating rollers, strip steel is arranged in a reciprocating mode around the rotating rollers, the distance between the two groups of rotating rollers is adjusted through traction of a steel wire rope, the steel wire rope is wound on the winding roller, and the length of the strip steel stored in the inlet loop can be adjusted by controlling forward and reverse rotation of the winding roller, so that the current rotation number of turns of an encoder on the winding roller can be read, and the inlet loop quantity can be accurately calculated; the speed of the inlet sleeve can be obtained by acquiring the speed of the rotating roller through a speed sensor; similarly, the unwinding traction speed can also be obtained by acquiring the rotating speed of the uncoiler through a speed sensor.
The uncoiling traction speed represents the current speed of the strip steel entering the inlet loop, the inlet drawing speed represents the current speed of the strip steel leaving the inlet loop, the inlet loop quantity represents the storage quantity of the strip steel in the inlet loop currently, and the total storage quantity of the inlet loop has an upper limit, so that the residual target time can be calculated through the inlet loop quantity, the inlet drawing speed and the uncoiling traction speed.
In a specific embodiment, after obtaining the remaining target time of the inlet loop according to the inlet loop amount, the inlet draw speed and the unwind pull speed, the method further comprises:
acquiring a preset full load of the full load state; and updating the remaining target time according to the preset full capacity.
Specifically, the inlet loop is used for buffering the flow change of the strip steel between the uncoiler and the annealing furnace, the preset full load can be set to 90% -100% of the total stored strip steel of the inlet loop according to actual conditions, and the smaller the preset full load is, the smaller the updated residual target time is relative to the initial residual target time. The upper limit of the strip steel stored in the inlet loop can be flexibly controlled by presetting the full load, and the residual target time can be accurately obtained.
In a specific embodiment, obtaining the remaining target time of the inlet loop based on the inlet loop amount, the inlet draw speed, and the unwind pull speed comprises:
according to the formulaObtaining the remaining target time, wherein a is the inlet looper amount, v is the inlet looper speed, v 0 Is the uncoiling traction speed.
Specifically, 1-a is strip steel which needs to be stored when the inlet loop reaches a target state, and the residual target time can be accurately calculated through the formula; similarly, the formula is as follows:
the remaining target time may be updated according to a preset full load, where s is the preset full load.
In a specific embodiment, the traction treatment device is used for leveling and oiling after annealing the traction strip steel, the strip steel loop is an outlet loop connecting an outlet of the annealing furnace and an inlet of the traction treatment device, the target state is an idle state of the strip steel loop, and the remaining target time for the strip steel loop to reach the target state is obtained, and the method comprises the following steps:
obtaining an outlet loop amount and an outlet loop drawing speed of an outlet loop; acquiring coiling traction speed of a coiling machine in traction treatment equipment; and obtaining the residual target time of the outlet loop according to the outlet loop amount, the outlet loop drawing speed and the coiling traction speed.
Specifically, when the traction treatment equipment is used for leveling and oiling after the traction strip steel is annealed, the traction treatment equipment comprises a leveling machine, an oiling machine and a coiling machine, the annealed strip steel is leveled by the leveling machine, oiled by the oiling machine and finally coiled by the coiling machine. The outlet loop quantity is the current storage quantity of the strip steel in the outlet loop, the outlet loop drawing speed is the running speed of the strip steel at the outlet of the outlet loop, and the residual target time of the outlet loop reaching the target state can be accurately calculated through the outlet loop quantity, the outlet loop drawing speed and the coiling traction speed. It will be appreciated by those skilled in the art that the corresponding control method in the inlet loop is equally applicable to the control of the outlet loop, except that the target state of the outlet loop is an empty state. After the remaining target time is acquired, the process proceeds to step S12.
S12, obtaining the residual traction time of the traction treatment equipment for traction of the residual strip steel.
Specifically, the remaining traction time is the time of the traction treatment device to traction the remaining strip steel, taking the traction treatment device as an example for welding and cleaning before traction of the strip steel annealing, please continue to refer to fig. 2, the first uncoiler uncoils the first strip steel, the second uncoiler uncoils the second strip steel, after the first uncoiler finishes uncoiling all the first strip steel, the welder welds the head part of the second strip steel with the tail part of the first strip steel, so that the strip steel is continuously annealed by the annealing furnace, and the remaining traction time is the time of the first uncoiler uncoiling the remaining first strip steel when the first uncoiler uncoils; and when the second uncoiler uncoils, the residual traction time is the time for the second uncoiler to uncoil the residual second strip steel.
In a specific embodiment, the traction treatment device is used for welding and cleaning before annealing the traction strip steel, and the method for obtaining the residual traction time of the traction treatment device for traction of the residual strip steel comprises the following steps:
the uncoiling traction speed of an uncoiler in traction treatment equipment and the current residual strip steel are obtained; and obtaining the residual traction time of the uncoiler according to the uncoiling traction speed and the current residual strip steel.
Specifically, the uncoiling traction speed can be obtained by measuring a speed measuring instrument in the uncoiling process of the uncoiler; the total length of a roll of strip is usually fixed, or the current remaining strip can be calculated from the total strip length and the uncoiled strip length over a range of lengths, so that the remaining pull time t 0 The calculation can be made by the following formula:wherein L is the current residual strip steel, v 0 Is the uncoiling traction speed. After the remaining traction time is acquired, the process proceeds to step S13.
S13, obtaining a current time difference according to the residual target time and the residual traction time.
Specifically, the current time difference Δt is the remaining target time t and the remaining traction time t 0 Can be calculated by the formula: Δt=t 0 -t is calculated. After the current time difference is obtained, the process proceeds to step S14.
S14, judging whether the current time difference is smaller than a preset time.
Specifically, the preset time represents the ideal time for the strip steel loop to reach the target state in the current state, and can be determined according to the experience of a technician or can be determined through a calibration test. The target state is the full-load state of the strip steel loop, and the preset time is 30-60 seconds.
And S15, if so, controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state.
Specifically, when the current time difference is smaller than the preset time, the current state distance of the strip steel loop reaches the target state operation speed, and the annealing production line is controlled to operate at the highest speed until the strip steel loop reaches the target state, so that adverse effects of the hysteresis on the annealing production line are eliminated. Taking a strip steel loop as an inlet loop as an example, the current time difference is less than the preset time to indicate that the filling process of the inlet loop is relatively delayed, and the annealing production line runs at the highest speed to complete the filling at the fastest speed, so that the inlet loop is in a full-load state, the problems that the production line is pumped out and stopped due to the inlet loop, the cleaning quality of the strip steel surface is improved, and the like are effectively avoided, and the stable production of the production line is ensured.
S16, if not, controlling the annealing production line to run at the current speed.
Specifically, the current time difference is not smaller than the preset time, which indicates that the current state distance of the strip steel loop reaches the target state running speed reasonably, and the annealing production line is controlled to run at the current speed.
Based on the same inventive concept as the control method, the embodiment of the invention also provides a strip steel loop control device, which is applied to an annealing production line, wherein the annealing production line comprises traction treatment equipment, a strip steel loop and an annealing furnace, the traction treatment equipment is used for carrying out welding cleaning before the strip steel is annealed or carrying out leveling oiling after the annealing, and referring to fig. 3, the device comprises:
a first obtaining module 301, configured to obtain a remaining target time for the strip loop to reach a target state, where the target state is a full load or no load state of the strip loop;
a second obtaining module 302, configured to obtain a remaining traction time of the traction processing device for traction of the remaining strip steel;
a first obtaining module 303, configured to obtain a current time difference according to the remaining target time and the remaining traction time;
a judging module 304, configured to judge whether the current time difference is less than a preset time;
a first control module 305, configured to control the annealing line to run at the highest speed until the strip loop reaches the target state when the current time difference is less than a preset time;
and a second control module 306, configured to control the annealing line to run at the current speed when the current time difference is not less than a preset time.
Based on the same inventive concept as the control method, an embodiment of the invention further provides an electronic device comprising a processor and a memory coupled to the processor, the memory storing instructions which, when executed by the processor, cause the electronic device to perform the steps of any one of the control methods.
Based on the same inventive concept as the control method, the embodiments of the present invention also provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any one of the control methods.
The technical scheme provided by the embodiment of the invention has at least the following technical effects or advantages:
the strip steel loop control method is applied to an annealing production line, when the strip steel is subjected to welding cleaning before annealing or is subjected to leveling oiling after annealing in the annealing production line, the residual target time for the strip steel loop to reach a target state is obtained, the residual traction time for the traction treatment equipment to traction the residual strip steel is obtained, the current time difference is obtained according to the residual target time and the residual traction time, when the current time difference is smaller than the preset time, the current state distance of the strip steel loop is indicated to reach the target state operation speed comparatively delayed, and the annealing production line is controlled to operate at the highest speed until the strip steel loop reaches the target state; when the current time difference is not less than the preset time, the current state distance of the strip steel loop reaches the target state operation speed, the annealing production line is controlled to operate at the current speed, the strip steel loop can be automatically and stably and quickly operated to the target state in the annealing process through the judgment of the current time difference and the preset time, the accurate control of the strip steel loop is realized, the shutdown times of the annealing production line can be reduced, the strip steel cleaning quality is improved, and the service life and the production efficiency of the annealing production line are improved.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (modules, systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The strip steel loop control method is characterized by being applied to an annealing production line, wherein the annealing production line comprises traction treatment equipment, a strip steel loop and an annealing furnace, the traction treatment equipment is used for carrying out welding cleaning before the strip steel is annealed or carrying out leveling oiling after the strip steel is annealed, and the method comprises the following steps:
obtaining the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop;
obtaining the residual traction time of the traction treatment equipment for traction of the residual strip steel;
obtaining a current time difference according to the residual target time and the residual traction time, wherein the current time difference deltat is calculated according to a formula deltat=t 0 -t is calculated, t 0 T is the residual target time for the residual traction time;
judging whether the current time difference is smaller than a preset time or not;
if yes, controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state;
if not, controlling the annealing production line to run at the current speed.
2. The strip steel loop control method according to claim 1, wherein the traction treatment device is used for welding cleaning before traction of strip steel annealing, the strip steel loop is an inlet loop connecting an outlet of the traction treatment device and an inlet of the annealing furnace, the target state is a full-load state of the strip steel loop, and the obtaining the remaining target time for the strip steel loop to reach the target state comprises:
acquiring the inlet loop amount and the inlet loop drawing speed of the inlet loop;
the uncoiling traction speed of an uncoiler in the traction treatment equipment is obtained;
and obtaining the residual target time of the inlet loop according to the inlet loop amount, the inlet drawing speed and the uncoiling traction speed.
3. The strip steel loop control method according to claim 2, wherein said obtaining said remaining target time of said inlet loop based on said inlet loop amount, said inlet pull-in speed, and said unwinding traction speed further comprises:
acquiring a preset full load of the full load state;
and updating the residual target time according to the preset full capacity.
4. The strip steel loop control method according to claim 2, wherein said obtaining said remaining target time of said inlet loop based on said inlet loop amount, said inlet pull-in speed, and said unwinding traction speed comprises:
according to the formulaObtaining the remaining target time, wherein a is the inlet looper amount and v is the inlet pumpSleeve speed, v 0 And (3) the uncoiling traction speed.
5. The strip steel loop control method according to claim 1, wherein the traction treatment device is used for welding cleaning before annealing of the traction strip steel, and the obtaining of the remaining traction time of the traction treatment device for traction of the remaining strip steel comprises:
the uncoiling traction speed and the current residual strip steel of an uncoiler in the traction treatment equipment are obtained;
and obtaining the residual traction time of the uncoiler according to the uncoiling traction speed and the current residual strip steel.
6. The strip steel loop control method according to claim 1, wherein the target state is a full load state of the strip steel loop, and the preset time is 30-60 seconds.
7. The strip steel loop control method according to claim 1, wherein the traction treatment device is used for leveling oiling after annealing of a traction strip steel, the strip steel loop is an outlet loop connecting an outlet of the annealing furnace and an inlet of the traction treatment device, the target state is an empty state of the strip steel loop, and the obtaining the remaining target time for the strip steel loop to reach the target state comprises:
obtaining the outlet loop amount and the outlet loop drawing speed of the outlet loop;
acquiring the coiling traction speed of a coiling machine in the traction treatment equipment;
and obtaining the residual target time of the outlet loop according to the outlet loop amount, the outlet drawing speed and the coiling traction speed.
8. The utility model provides a belted steel loop controlling means, its characterized in that is applied to in the annealing production line, annealing production line includes traction treatment equipment, belted steel loop and annealing stove, traction treatment equipment is used for welding before the traction belted steel anneals and washs or the tempering post-annealing and levels the fat liquoring, the device includes:
the first acquisition module is used for acquiring the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop;
the second acquisition module is used for acquiring the residual traction time of the residual strip steel which is drawn by the traction processing equipment;
a first obtaining module, configured to obtain a current time difference according to the remaining target time and the remaining traction time, where the current time difference Δt is according to a formula Δt=t 0 -t is calculated, t 0 T is the residual target time for the residual traction time;
the judging module is used for judging whether the current time difference is smaller than a preset time;
the first control module is used for controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state when the current time difference is smaller than a preset time;
and the second control module is used for controlling the annealing production line to run at the current speed when the current time difference is not smaller than the preset time.
9. An electronic device comprising a processor and a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the electronic device to perform the steps of the method of any of claims 1-7.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210595378.5A CN114990325B (en) | 2022-05-29 | 2022-05-29 | Strip steel loop control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210595378.5A CN114990325B (en) | 2022-05-29 | 2022-05-29 | Strip steel loop control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114990325A CN114990325A (en) | 2022-09-02 |
| CN114990325B true CN114990325B (en) | 2024-03-19 |
Family
ID=83029721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210595378.5A Active CN114990325B (en) | 2022-05-29 | 2022-05-29 | Strip steel loop control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114990325B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087355A (en) * | 2010-10-19 | 2012-05-10 | Jfe Steel Corp | Continuous annealing facility for thin steel sheet |
| CN103978045A (en) * | 2014-05-22 | 2014-08-13 | 邯钢集团邯宝钢铁有限公司 | Acid washing cold rolling combined unit inlet loop filling speed control method |
| CN204544966U (en) * | 2015-04-08 | 2015-08-12 | 首钢京唐钢铁联合有限责任公司 | A kind of cold rolling continuous product line |
| CN106399891A (en) * | 2016-11-21 | 2017-02-15 | 首钢京唐钢铁联合有限责任公司 | Treatment method for vertical loop of continuous hot galvanizing inlet section |
-
2022
- 2022-05-29 CN CN202210595378.5A patent/CN114990325B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087355A (en) * | 2010-10-19 | 2012-05-10 | Jfe Steel Corp | Continuous annealing facility for thin steel sheet |
| CN103978045A (en) * | 2014-05-22 | 2014-08-13 | 邯钢集团邯宝钢铁有限公司 | Acid washing cold rolling combined unit inlet loop filling speed control method |
| CN204544966U (en) * | 2015-04-08 | 2015-08-12 | 首钢京唐钢铁联合有限责任公司 | A kind of cold rolling continuous product line |
| CN106399891A (en) * | 2016-11-21 | 2017-02-15 | 首钢京唐钢铁联合有限责任公司 | Treatment method for vertical loop of continuous hot galvanizing inlet section |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114990325A (en) | 2022-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2009006373A (en) | Crown controller and crown control method in hot-rolling mill | |
| JPWO2008129634A1 (en) | Thickness control device for reverse rolling mill | |
| CN114990325B (en) | Strip steel loop control method and device | |
| CN112893482A (en) | High-strength steel coiling tension control method, device, equipment and storage medium | |
| JP4585628B2 (en) | Method for rolling steel strip and method for producing steel plate | |
| CN110695129B (en) | Alarming method and device in strip steel coiling process | |
| WO2015015643A1 (en) | Energy-saving-operation recommending system | |
| JP4777161B2 (en) | Temper rolling method | |
| CN108543814B (en) | Control method for strip steel finish rolling temperature | |
| JP2009142879A (en) | Temper rolling method | |
| KR101344635B1 (en) | Operation support device, operation support method, and computer readable recording medium recording program | |
| JP5842552B2 (en) | Control method and control device for continuous annealing line | |
| CN113275383B (en) | Coiling control method and device for auxiliary winding roller of coiling machine and electronic equipment | |
| JP2007289990A (en) | Method for controlling thickness in rolling equipment and rolling equipment | |
| JP2018134659A (en) | Control device of rolling machine, control method of rolling machine and control program of rolling machine | |
| JPH04327310A (en) | Skinpass rolling method | |
| JP6813059B2 (en) | Rolled material meandering control method, rolled material meandering control device, and rolled material manufacturing method | |
| CN107944085B (en) | Data processing method and module for steel rolling self-learning model | |
| JP5755534B2 (en) | Rolling method and rolled plate | |
| JP2011088172A (en) | Device and method for controlling sheet thickness in cold rolling mill | |
| CN213033299U (en) | Cold rolling recoiling production line and pulling-straightening device thereof | |
| CN115258778A (en) | Deviation correcting system of strip steel processing production line | |
| JP5703783B2 (en) | Method and apparatus for preventing meandering of steel strip | |
| CN116274406A (en) | Cold-rolled steel strip coiling tension determining method and device | |
| CN116274412A (en) | Roll gap control method and device for finish rolling vertical roll |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |