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Cutting control system for continuous casting slab of thick plate and assembly optimization calculation method thereof

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

Active Publication Date: 2019-12-27
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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  • Cutting control system for continuous casting slab of thick plate and assembly optimization calculation method thereof
  • Cutting control system for continuous casting slab of thick plate and assembly optimization calculation method thereof
  • Cutting control system for continuous casting slab of thick plate and assembly optimization calculation method thereof

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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 assembly

[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 may be 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 formation

[0235] Using the method of path optimization billet assembly, a total of 1 billet assembly path is generated, which is s...

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Abstract

The invention discloses a cutting control system for a continuous casting slab of a thick plate. A short slab command is sent by using a thick plate rolling mill, data such as a signal are tracked inheat casting process, the assembly optimization of the short slab is performed on the casting slab with the range of a casting machine, and the casting slab is cut according to the length of an optimal long slab; an assembly optimization calculation method of the continuous casting slab of the thick plate can successfully find the optimal assembly strategy, optimal cutting control is performed onthe long slab within the range of the casting machine, and a continuous casting on-line cutter is controlled to perform on-line one-step cutting, so that cutting scraps are decreased, continuous casting, integration and optimization of the efficiency of the thick plate rolling mill are supported, and the assembly cutting efficiency and effect of the continuous casting machine are improved; the user interface is friendly, cut loss can be reduced, scenes of uniflow casting, dual-flow casting and different steel grades casting of the thick plate each heat are supported, and the maximized and optimized efficiency of the casting machine is ensured.

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 Applications(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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