CN114967627A - Casting and rolling integrated material tracking and scheduling method for continuous casting-hot rolling process - Google Patents
Casting and rolling integrated material tracking and scheduling method for continuous casting-hot rolling process Download PDFInfo
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- CN114967627A CN114967627A CN202210756562.3A CN202210756562A CN114967627A CN 114967627 A CN114967627 A CN 114967627A CN 202210756562 A CN202210756562 A CN 202210756562A CN 114967627 A CN114967627 A CN 114967627A
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- 238000005266 casting Methods 0.000 title claims abstract description 151
- 238000005096 rolling process Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005098 hot rolling Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 title claims abstract description 18
- 238000009749 continuous casting Methods 0.000 claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 claims abstract description 55
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 43
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000002699 waste material Substances 0.000 claims description 6
- 238000013528 artificial neural network Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
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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
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32252—Scheduling production, machining, job shop
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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 casting and rolling integrated material tracking and scheduling method for a continuous casting-hot rolling process. The method comprises the steps of acquiring a production plan of a continuous casting machine and real-time production data of each device in real time, calculating the temperature of a continuous casting blank before the continuous casting blank reaches a No. 1 baffle of a continuous casting cooling bed, judging whether the casting blank needs to wait at the No. 1 baffle or not by combining position information of the casting blank on an existing roller way, and calculating waiting time if the casting blank needs to wait and the temperature of the casting blank after the waiting time is reached. The invention aims at the continuous casting-hot rolling production process, and realizes the intelligent scheduling of the casting blank of the production line by taking the real-time tracking of the casting blank as a means. The method is characterized in that the method takes two modes of machine vision and a hot metal detector as means, and a self-developed temperature evolution algorithm is added to track and record casting blank information (position, state, temperature and the like) from continuous casting to a rolling mill. The switching requirements of three production modes of direct rolling, hot conveying and cold charging are met.
Description
Technical Field
The invention relates to the field of continuous casting-hot rolling processes in the steel industry, in particular to a rolling production line of a common or alloy steel bar hot-rolled bar, and provides a casting and rolling integrated material tracking and scheduling method. The reasonable continuous casting-hot rolling connection and the integrated production scheduling are established mainly by monitoring the equipment state, judging the production abnormal condition, recording the operation actual performance and the like.
Background
In the steel production process, continuous casting and hot rolling are two indispensable key processes, namely a long process taking iron ore as a raw material and a short process of electric furnace steelmaking. The sequential processing relationship is presented between them, and not only the problems of material flow balance and resource balance exist, but also the problems of energy balance and time balance exist due to high-temperature operation. Since the 80 s in the 20 th century, the hot-conveying and hot-charging process widely popularized around energy conservation realizes the integrated production of continuous casting and hot rolling, so that the process flow of the steel production is fundamentally changed, great economic benefits can be brought to enterprises, and higher requirements are provided for production management.
Disclosure of Invention
In order to overcome the defects, the invention provides a casting and rolling integrated material tracking and scheduling method for a continuous casting-hot rolling process, so that a casting blank is fed into a heating furnace at high temperature or is directly rolled at high temperature, the energy consumption of a system is reduced, and the production period is shortened.
In order to achieve the aim, the casting and rolling integrated material tracking and scheduling method for the continuous casting-hot rolling process comprises the steps of acquiring a continuous casting machine production plan and real-time production data of each device in real time, calculating the temperature of a continuous casting blank before a continuous casting blank reaches a No. 1 baffle of a continuous casting cooling bed, judging whether the casting blank needs to wait at the No. 1 baffle by combining the position information of the casting blank on the existing roller way, calculating the waiting time if the casting blank needs to wait, and calculating the temperature of the casting blank after the waiting time is reached.
Further, the real-time production data of each device includes: the system comprises a continuous casting machine, a flame cutting signal of the continuous casting machine, each flow drawing speed of the continuous casting machine, a continuous casting cooling bed signal (a steel turning signal, a blank moving vehicle signal and a baffle signal), the speed of each roller way of a continuous casting-first frame rolling mill section, all hot metal detector signals of the continuous casting to the first frame rolling mill section, a cold blank feeding rack action signal, a waste removing signal before a furnace, a casting blank inlet/outlet heating furnace signal, a waste removing signal after the furnace, a steel biting signal of the first frame rolling mill and/or a biting speed of the first frame rolling mill.
Further, the step of calculating the temperature of the continuous casting billet before the continuous casting billet reaches the baffle of the continuous casting cooling bed 1# is to calculate the temperature of the continuous casting billet before the continuous casting billet reaches the baffle of the continuous casting cooling bed 1# by adopting a differential algorithm.
Further, for the straight rolling production mode, the method also comprises the following steps:
calculating whether the temperature of the current casting blank when reaching the position of the first rolling mill meets the rolling requirement or not by combining the position information of all the casting blanks; if not, the casting blank is off-line in the cooling bed area after passing through a No. 1 baffle of the continuous casting cooling bed; if yes, judging whether the current casting blank needs to wait at the continuous casting 2# baffle plate according to the number and position state of the casting blanks on the roller way;
if waiting is needed, judging the waiting time and the corresponding temperature change of the casting blank, predicting the temperature reaching the first rolling mill, judging whether the rolling requirement is met, if not, performing off-line casting, and if so, raising a No. 2 baffle plate, and transporting the casting blank to the rolling mill.
Further, for the hot-feeding production mode, the method also comprises the following steps:
the method comprises the steps of predicting whether the temperature of a current casting blank reaching a furnace entry roller way of a heating furnace meets the requirement of furnace entry temperature or not by combining position information of all casting blanks and the temperature requirement of the current heating furnace on the furnace entry casting blank;
if the requirements are met, raising a baffle plate No. 2 of a cooling bed of the continuous casting machine, conveying the casting blank to a heating furnace through a hot roller conveying way, and conveying the casting blank to a rolling mill after heating; if not, the line is off-line in the cooling bed area.
Further, for the cold-pack production mode: the method also comprises the following steps:
and (3) conveying the casting blank to a conveying roller way through a cold blank feeding device, and then conveying the casting blank to a heating furnace for heating.
Further, the method also comprises the following steps of predicting the casting blank temperature: and calculating the theoretical temperature of the casting blank by adopting a differential algorithm, collecting the temperature measurement data of the pyrometer when the casting blank reaches a specified position in real time, and correcting the theoretical calculation result through a neural network.
Further, the method also comprises the following steps of predicting the casting blank position: the casting blank position is tracked through the real-time collected casting blank conveying roller way speed, and the casting blank position information is corrected, including:
correcting the position of a casting blank through signals of hot metal detectors of a continuous casting-first frame rolling mill section; and/or by acquiring a plurality of position industrial camera signals of the continuous casting-first stand rolling mill section, and judging the existence/nonexistence of a casting blank through machine vision.
The invention aims at the continuous casting-hot rolling production process, and realizes the intelligent scheduling of the casting blank of the production line by taking the real-time tracking of the casting blank as a means. The method is characterized in that the method takes two modes of machine vision and a hot metal detector as means, and a self-developed temperature evolution algorithm is added to track and record casting blank information (position, state, temperature and the like) from continuous casting to a rolling mill. The switching requirements of three production models of direct rolling, hot conveying and cold charging are met. The casting and rolling integrated scheduling system provided by the invention realizes reasonable connection and integrated control of continuous casting and hot rolling, ensures the requirement of the temperature of a billet entering a rolling mill in a direct rolling mode, stabilizes the heating system of a heating furnace in a hot delivery mode, and achieves the purposes of reducing system energy consumption and optimizing and matching continuous casting-steel rolling capacity.
Drawings
FIG. 1 is a process flow diagram of a continuous casting-hot rolling line.
FIG. 2 is a schematic diagram of a cast-rolling integrated dispatching management and control system in a direct rolling production mode.
FIG. 3 is a schematic diagram of a casting and rolling integrated dispatching management and control system in a hot delivery/cold charging production mode.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to the embodiment of the invention, aiming at the hot delivery/direct rolling process, the mode of combining material tracking with temperature prediction is provided, the online flexible scheduling of production is realized, and the reasonable connection of casting and rolling integrated production is achieved. The technological process of the continuous casting-hot rolling production line comprising three modes of direct rolling, hot conveying and cold charging is shown in figure 1. The continuous casting and pulling billet is cut by flame to length to finish the generation of a casting billet, the casting billet waits at a continuous casting 1# baffle plate according to the production scheduling requirement, enters a continuous casting cooling bed area after the waiting is finished, determines whether the casting billet is off-line according to the working condition, and sends the billet after a 2# baffle plate is lifted if the casting billet is not off-line; if the production is carried out in a direct rolling mode, the casting blank is directly conveyed to a rolling mill through a conveying roller way. Before the casting blank enters a rolling mill, measuring the temperature of the casting blank through a pyrometer, when the temperature of the casting blank meets the requirement, sending the casting blank to the rolling mill for rolling, and if the temperature of the casting blank does not meet the requirement, rejecting the casting blank off line; if the hot delivery mode is adopted, the casting blank is delivered out of the continuous casting cooling bed No. 2 baffle plate, then is delivered to a heating furnace through a conveying roller way for heating, and is discharged out of the furnace after being heated and delivered to a rolling mill for rolling; if the cold charging mode is adopted for production, the cold blank is sent to a heating furnace for heating and temperature rise through a steel feeding device and a conveying roller way, and is discharged from the furnace after heating is finished and sent to a rolling mill for rolling.
The following description is divided into a direct rolling production mode and a hot-conveying/cold-charging production mode respectively:
direct rolling production mode: acquiring a continuous casting production plan through an MES (manufacturing execution system), acquiring a flame cutting signal of a continuous casting machine, the flow pulling speed of the continuous casting machine, a continuous casting cooling bed signal (a steel turning signal, a blank moving vehicle signal and a baffle signal), the speed of each section of a straight rolling roller way continuously cast to a 1# frame rolling mill section, all hot metal detector signals of the straight rolling roller way continuously cast to the 1# rolling mill section, a straight rolling mode key position industrial camera signal of the continuous casting to the 1# rolling mill section, a 1# rolling mill steel biting signal, a 1# rolling mill biting speed and other production data, calculating the temperature before the continuous casting cooling bed 1# baffle plate by adopting a differential algorithm (comprehensively considering continuous casting blank heat conduction, heat convection and heat radiation), judging whether the casting blank needs to wait at the 1# baffle plate or not by combining casting blank position information on the existing roller way, calculating the waiting time if the casting blank needs to wait, and calculating the temperature of the casting blank after the waiting time is reached. If the temperature does not meet the conditions of entering the rolling mill, the casting blank is off-line by a blank moving vehicle after the 1# baffle plate is lifted; and if the temperature meets the conditions of entering the rolling mill, after the casting blank waits for time at the No. 1 baffle plate for full time, lifting the No. 1 baffle plate, and then, casting the casting blank to the No. 2 baffle plate. And judging whether the casting blank needs to wait at the 2# baffle plate or not by combining the position information of the casting blank on the existing roller way, calculating the waiting time if the casting blank needs to wait, and calculating the temperature of the casting blank after the waiting time is reached by adopting a differential algorithm. If the temperature does not meet the conditions of entering the rolling mill, the casting blank is off-line by a blank moving vehicle in front of a No. 2 baffle; and if the temperature meets the condition of entering the rolling mill, after the waiting time of the casting blank at the No. 2 baffle plate is over, lifting the No. 2 baffle plate, and conveying the casting blank to the No. 1 rolling mill through a straight rolling roller way. Meanwhile, the position of the casting blank is tracked in real time in a double checking mode of a hot metal detector and machine vision. At least 1 pyrometer is arranged in front of the 1# rolling mill for measuring the temperature of the casting blank, and when the temperature of the casting blank does not meet the requirements of entering the rolling mill after the casting blank reaches the position, the casting blank is off-line. And if the temperature of the solid temperature meets the requirement as the temperature of the solid temperature is predicted, the casting blank enters a rolling mill for rolling. The temperature value measured by the pyrometer can be fed back to be used for a differential algorithm to complete the neural network self-learning of the casting blank temperature, so that the accurate prediction of the casting blank temperature is realized. And by the basic logic, the integrated intelligent scheduling of casting and rolling in the direct rolling mode is completed by matching with an MES production plan and the acquisition of real-time data.
Hot delivery/cold charging production mode: acquiring a continuous casting production plan through an MES, acquiring a continuous casting machine flame cutting signal, each flow drawing speed of the continuous casting machine, a continuous casting cooling bed signal (a steel turning signal, a blank moving vehicle signal and a baffle signal), each roller way speed of each section of a 1# frame rolling mill section in continuous casting, all hot metal detector signals of the 1# rolling mill section in continuous casting, a key position industrial camera signal of the 1# rolling mill section in continuous casting, a heating furnace casting blank entering signal, a furnace front waste removing signal, a heating furnace casting blank exiting signal, a furnace rear waste removing signal, a 1# rolling mill steel biting signal, a 1# rolling mill biting speed and other production data, calculating the temperature of the continuous casting blank before the continuous casting to the 1# baffle of the continuous casting cooling bed by adopting a differential algorithm (comprehensively considering heat conduction, heat convection and heat radiation), and judging whether the casting blank needs to wait at the 1# baffle by combining with the casting blank position information on the existing roller way and the steel needing signal of the heating furnace, if waiting is needed, the waiting time is calculated, and the casting blank temperature after the waiting time is reached is calculated. If the temperature does not meet the conditions for entering the heating furnace (ensuring that the system of the heating furnace is not adjusted/fine-tuned as much as possible so as to maintain stable furnace conditions and reduce energy consumption), the casting blank is off-line by a blank moving vehicle after the No. 1 baffle is lifted; and if the temperature meets the condition of entering the heating furnace, after the casting blank waits for time at the No. 1 baffle plate for full time, lifting the No. 1 baffle plate, and then, moving the casting blank to the No. 2 baffle plate. And (3) judging whether the casting blank needs to wait at the 2# baffle plate or not by combining the position information of the casting blank on the existing roller way and the steel demanding signal of the heating furnace, calculating the waiting time if the casting blank needs to wait, and calculating the temperature of the casting blank after the waiting time is reached by adopting a differential algorithm. If the temperature does not meet the condition of entering the heating furnace, the casting blank is off-line by a blank moving vehicle in front of the No. 2 baffle; and if the temperature meets the condition of entering the heating furnace, after the waiting time of the casting blank at the No. 2 baffle plate is over, lifting the No. 2 baffle plate, and conveying the casting blank to the heating furnace through a hot conveying roller way. Meanwhile, the position of the casting blank is tracked in real time in a double checking mode of a hot metal detector and machine vision. 1 pyrometer is arranged in front of the heating furnace and behind the heating furnace for measuring the temperature of the casting blank, and when the actual casting blank temperature measured after the casting blank reaches the position does not meet the requirement of entering the heating furnace/the rolling mill, the casting blank is off-line. And if the actual temperature before entering the furnace meets the requirement as predicted, the casting blank enters a heating furnace for heating. And (4) after discharging, if the actual temperature meets the requirement as the prediction, the casting blank enters a rolling mill for rolling. The temperature value measured by the pyrometer can be fed back to be used for a differential algorithm to complete the neural network self-learning of the casting blank temperature, so that the accurate prediction of the casting blank temperature is realized. And when the continuous casting maintenance stops production or the heating furnace is adjusted to prepare for digesting the cold billet reserve in the current time period, the cold charging mode is adopted for production. And by the basic logic, the integrated intelligent scheduling of casting and rolling under the hot conveying/cold loading mode is completed in cooperation with an MES production plan and the acquisition of real-time data.
The invention provides a method for realizing online flexible scheduling of production by combining material tracking with temperature prediction aiming at a hot delivery/direct rolling process, thereby achieving reasonable connection of cast-rolling integrated production. The technological process of the continuous casting-hot rolling production line comprising three modes of direct rolling, hot conveying and cold charging is shown in figure 1. The continuous casting and pulling billet is cut by flame to length to finish the generation of a casting billet, the casting billet waits at a continuous casting 1# baffle plate according to the production scheduling requirement, enters a continuous casting cooling bed area after the waiting is finished, determines whether the casting billet is off-line according to the working condition, and sends the billet after a 2# baffle plate is lifted if the casting billet is not off-line; if the production is carried out in a direct rolling mode, the casting blank is directly conveyed to a rolling mill through a conveying roller way. Before the casting blank enters a rolling mill, measuring the temperature of the casting blank through a pyrometer, when the temperature of the casting blank meets the requirement, sending the casting blank to the rolling mill for rolling, and if the temperature of the casting blank does not meet the requirement, rejecting the casting blank off line; if the hot delivery mode is adopted, the casting blank is delivered out of the continuous casting cooling bed No. 2 baffle plate, then is delivered to a heating furnace through a conveying roller way for heating, and is discharged out of the furnace after being heated and delivered to a rolling mill for rolling; if the cold charging mode is adopted for production, the cold blank is sent to a heating furnace for heating and temperature rise through a steel feeding device and a conveying roller way, and is discharged from the furnace after heating is finished and sent to a rolling mill for rolling.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A casting and rolling integrated material tracking and scheduling method for a continuous casting-hot rolling process is characterized in that a continuous casting machine production plan and real-time production data of all equipment are obtained in real time, the temperature of a continuous casting blank before a continuous casting cooling bed No. 1 baffle is calculated, the position information of the casting blank on an existing roller way is combined, whether the casting blank needs to wait at the No. 1 baffle is judged, if so, the waiting time is calculated, and the temperature of the casting blank after the waiting time is reached is calculated.
2. The cast-rolling integrated material tracking and scheduling method of the continuous casting-hot rolling process as claimed in claim 1, wherein the real-time production data of each equipment comprises: the system comprises a continuous casting machine, a flame cutting signal of the continuous casting machine, each flow drawing speed of the continuous casting machine, a continuous casting cooling bed signal (a steel turning signal, a blank moving vehicle signal and a baffle signal), the speed of each roller way of a continuous casting-first frame rolling mill section, all hot metal detector signals of the continuous casting to the first frame rolling mill section, a cold blank feeding rack action signal, a waste removing signal before a furnace, a casting blank inlet/outlet heating furnace signal, a waste removing signal after the furnace, a steel biting signal of the first frame rolling mill and/or a biting speed of the first frame rolling mill.
3. The casting-rolling integrated material tracking and scheduling method of the continuous casting-hot rolling process as claimed in claim 1, wherein the calculating of the temperature of the continuous casting slab before the continuous casting bed 1# baffle is to calculate the temperature of the continuous casting slab before the continuous casting bed 1# baffle by using a differential algorithm.
4. The cast-rolling integrated material tracking and scheduling method of the continuous casting-hot rolling process as claimed in claim 1, further comprising the steps of, for a direct rolling production mode:
calculating whether the temperature of the current casting blank reaching the position of the first frame rolling mill meets the rolling requirement or not by combining the position information of all the casting blanks; if not, the casting blank is off-line in the cooling bed area after passing through a No. 1 baffle of the continuous casting cooling bed; if yes, judging whether the current casting blank needs to wait at the continuous casting 2# baffle plate according to the number and position state of the casting blanks on the roller way;
if waiting is needed, judging the waiting time and the corresponding temperature change of the casting blank, predicting the temperature reaching the first rolling mill, judging whether the rolling requirement is met, if not, performing off-line casting, and if so, raising a No. 2 baffle plate, and transporting the casting blank to the rolling mill.
5. The cast-rolling integrated material tracking and scheduling method of the continuous casting-hot rolling process as claimed in claim 1, further comprising the steps of, for a hot-feed production mode:
the method comprises the steps of predicting whether the temperature of a current casting blank reaching a furnace entry roller way of a heating furnace meets the requirement of furnace entry temperature or not by combining position information of all casting blanks and the temperature requirement of the current heating furnace on the furnace entry casting blank;
if the requirement is met, raising a 2# baffle of a cooling bed of the continuous casting machine, conveying the casting blank to a heating furnace through a hot conveying roller way, and conveying the casting blank to a rolling mill after heating; if not, the line is off-line in the cooling bed area.
6. The cast-rolling integrated material tracking and scheduling method of the continuous casting-hot rolling process as claimed in claim 1, further comprising the steps of, for a cold-pack production mode:
and (3) conveying the casting blank to a conveying roller way through a cold blank feeding device, and then conveying the casting blank to a heating furnace for heating.
7. The casting-rolling integrated material tracking and scheduling method of the continuous casting-hot rolling process of claim 1,
and also comprises the following steps of predicting the casting blank temperature: and calculating the theoretical temperature of the casting blank by adopting a differential algorithm, collecting the temperature measurement data of the pyrometer when the casting blank reaches a specified position in real time, and correcting the theoretical calculation result through a neural network.
8. The casting-rolling integrated material tracking and scheduling method of the continuous casting-hot rolling process of claim 1,
the method also comprises the following steps of casting blank position prediction: the casting blank position is tracked through the real-time collected casting blank conveying roller way speed, and the casting blank position information is corrected, including:
correcting the position of a casting blank through signals of hot metal detectors of a continuous casting-first frame rolling mill section; and/or by acquiring a plurality of position industrial camera signals of the continuous casting-first stand rolling mill section, and judging the existence/nonexistence of a casting blank through machine vision.
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| CN202210756562.3A CN114967627A (en) | 2022-06-29 | 2022-06-29 | Casting and rolling integrated material tracking and scheduling method for continuous casting-hot rolling process |
| PCT/CN2023/096774 WO2024001632A1 (en) | 2022-06-29 | 2023-05-29 | Casting and rolling integrated material tracking and scheduling method for continuous casting-hot rolling process |
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| KR100775231B1 (en) * | 2006-09-01 | 2007-11-12 | 주식회사 포스코 | Apparatus and method for controlling warp of rolled heavy plate |
| JP5440359B2 (en) * | 2010-04-23 | 2014-03-12 | 新日鐵住金株式会社 | Rolling pitch control method in hot rolling line |
| CN101972780B (en) * | 2010-11-11 | 2013-06-26 | 攀钢集团钢铁钒钛股份有限公司 | Hot rolling titanium casting blank temperature control method |
| CN106238694B (en) * | 2016-09-14 | 2018-10-12 | 中冶华天南京工程技术有限公司 | A kind of hot charging and hot rolling of continuous casting slab process and device |
| CN206652838U (en) * | 2016-12-01 | 2017-11-21 | 上海亚新连铸技术工程有限公司 | A kind of wire rolling process units of low energy consumption |
| CN110834032B (en) * | 2019-10-10 | 2021-06-29 | 中冶南方连铸技术工程有限责任公司 | Method and device for tracking temperature of casting blank in continuous casting and rolling temperature field |
| CN111112328A (en) * | 2020-01-10 | 2020-05-08 | 南京净环热冶金工程有限公司 | Energy-saving device and method for producing long steel by calendering smelting waste heat |
| CN112222207A (en) * | 2020-08-21 | 2021-01-15 | 河钢股份有限公司承德分公司 | Automatic hot-feeding and direct-rolling system of 6-flow square billet continuous casting machine |
| CN112453054A (en) * | 2020-09-21 | 2021-03-09 | 河钢股份有限公司承德分公司 | Continuous casting billet rolling system |
| CN114967627A (en) * | 2022-06-29 | 2022-08-30 | 中冶华天工程技术有限公司 | Casting and rolling integrated material tracking and scheduling method for continuous casting-hot rolling process |
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2022
- 2022-06-29 CN CN202210756562.3A patent/CN114967627A/en active Pending
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2023
- 2023-05-29 WO PCT/CN2023/096774 patent/WO2024001632A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001632A1 (en) * | 2022-06-29 | 2024-01-04 | 中冶华天工程技术有限公司 | Casting and rolling integrated material tracking and scheduling method for continuous casting-hot rolling process |
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