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A Thick Plate Continuous Casting Slab Cutting Control System and Its Optimization Calculation Method

A control system and billet assembly technology, applied in the field of automatic control of continuous casting and cutting

Active Publication Date: 2021-06-15
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the defect problem that the above-mentioned existing technology cannot realize the combination optimization of short slabs and long slabs specially used for thick slab continuous casting, the purpose of the present invention is to provide a thick slab continuous casting slab cutting control system and its optimization calculation method for slab formation, which utilizes thick slab continuous casting The command of the rolling mill to the short slab, the tracking signal of the heat pouring process and other data, optimize the slab formation of the short slab within the range of the casting machine to ensure that the slab is cut according to the optimal length of the long slab to control the continuous casting line. The cutting machine performs one online cutting to reduce the cutting loss caused by one cutting and ensure the maximum and optimization of the production efficiency of thick plate continuous casting-thick plate rolling mill

Method used

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  • A Thick Plate Continuous Casting Slab Cutting Control System and Its Optimization Calculation Method
  • A Thick Plate Continuous Casting Slab Cutting Control System and Its Optimization Calculation Method
  • A Thick Plate Continuous Casting Slab Cutting Control System and Its Optimization Calculation Method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0193] Embodiment 1: the embodiment of fixed-length blank assembly

[0194] (1) The calculation interval [50552mm, 77147mm] is 26595mm long in total.

[0195] (2) Furnace order information

[0196]

[0197] (3) Estimation results of cuttable short billets in the calculation interval

[0198] Within the calculation interval, there are 9 short billets that can be digested.

[0199]

[0200] (4) The results of billet assembly to length

[0201] The billet grouping method with fixed length was adopted, and the billet grouping optimization feasibility judgment method was adopted to meet the billet grouping conditions, and 3 long billets were successfully assembled at the fixed length. The long blank length results are as follows:

[0202]

Embodiment 2

[0203] Embodiment 2: the embodiment of path optimization billet formation

[0204] (1) The calculation interval [33742mm, 71897mm] is 38155mm long in total.

[0205] (2) Furnace order information

[0206]

[0207]

[0208] (3) Estimation results of cuttable short billets in the calculation interval

[0209] Within the calculation interval, only 11 short billets can be digested.

[0210]

[0211] (4) The results of billet assembly to length

[0212] Using the fixed-length billet assembly method, after forming 4 long billets, there is still a surplus length of 4287mm, which is less than the equipment lower limit of 5800mm. Through the billet assembly optimization feasibility judgment method, the billet assembly conditions are not met, and the results are as follows:

[0213]

[0214] (5) path optimization billet assembly

[0215] A total of 12 billet assembly paths were generated by using the path optimization method, and the results are as follows:

[0216] ...

Embodiment 3

[0222] Embodiment 3: the embodiment of sizing auxiliary blank assembly

[0223] (1) The calculation interval [45552mm, 77147mm] is 31595mm long in total.

[0224] (2) Furnace order information

[0225]

[0226]

[0227] (3) Estimation results of cuttable short billets in the calculation interval

[0228] Within the calculation interval, there are 7 short billets that can be digested.

[0229]

[0230] (4) The results of billet assembly to length

[0231] Using the fixed-length billet assembly method, after forming 3 long billets, there is still a surplus length of 4595mm, which is less than the equipment lower limit of 5800mm. Through the billet assembly optimization feasibility judgment method, the billet assembly conditions are not met, and the results are as follows:

[0232]

[0233]

[0234] (5) path optimization billet assembly

[0235] Using the method of path optimization for billet assembly, a total of one billet path is generated, which is still th...

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Abstract

The invention discloses a thick-slab continuous casting billet cutting control system, which utilizes thick-slab rolling mill to send commands to short billets, heat pouring process tracking signals and other data, and optimizes the billet grouping of short billets within the scope of the casting machine , to ensure that the slab is cut according to the optimal length of the long slab; a calculation method for optimizing the slab grouping of thick slab continuous casting slabs can successfully find the optimal slab strategy, and optimize the cutting control of the long slab within the range of the casting machine , to control the continuous casting online cutting machine to perform online one-time cutting, thereby reducing cutting scrap, supporting the integration and optimization of continuous casting and thick plate rolling mill efficiency, and improving the efficiency and effect of continuous casting machine billet cutting; the invention has a friendly user interface, It can reduce cutting loss, support scenarios such as single-strand casting, double-strand casting, and casting of different steel types from thick plates to furnaces, ensuring the maximum and optimization of casting machine performance.

Description

technical field [0001] The invention relates to the technical field of automatic control of continuous casting cutting, and more specifically refers to the cutting control of billets grouping and its optimization calculation method for the production of double-strand continuous casting machines facing thick plate rolling mills. Background technique [0002] In the design and construction of existing continuous casting plants, the slab cutting control system is generally configured. The slab cutting control system will cooperate with the casting machine computer system (host computer), casting machine PLC system, cutting machine PLC system, and the corresponding control modules to carry out automatic slab cutting according to the conditions such as the slab command system and the direction of the slab. control. [0003] The existing continuous casting slab cutting control systems are as follows: [0004] A device and method for optimizing the billet production plan during r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/16
CPCB22D11/163
Inventor 阎建兵严桢博朱海健
Owner BAOSHAN IRON & STEEL CO LTD
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