Continuous casting billet cutting control system and control method thereof

A technology of a control system and a control method, which is applied to the continuous casting slab cutting control system and the control field thereof, can solve the problems of inability to consider the compatibility of several command systems, low work efficiency, and low precision of sizing.

Active Publication Date: 2019-01-04
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to provide a continuous casting slab cutting optimization system to overcome the shortcomings of the original system such as cumbersome operation, low work efficiency, high investment cost, and large loss of slab metal
[0006] (3) A continuous casting slab sizing method and system (Patent No. CN105665673A), which acquires the slab casting speed controlled by the frequency converter in real time; judges whether the slab at the original position or the limited position is received in place signal; when the billet in place signal is received, the billet length of the drawing and straightening machine is calculated according to the billet speed; it is judged whether the l

Method used

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  • Continuous casting billet cutting control system and control method thereof
  • Continuous casting billet cutting control system and control method thereof
  • Continuous casting billet cutting control system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0165] Embodiment 1: Production embodiment of thin plate single furnace

[0166] (1) Casting machine process control tracking processing

[0167] Ladle weight: 120 tons, tundish weight: 60 tons, casting width: 1600 mm, casting thickness: 250 mm, casting speed: 100 mm / min.

[0168] (2) Furnace command state tracking compatible processing

[0169] L hot billet = L cold billet × F (1)

[0170] F: heat expansion coefficient of steel type = 1.01

[0171]

[0172] (3) Calculation interval identification

[0173] Calculation of steel flow per unit of single flow:

[0174] TH=T×W×S×G=3.12 tons / minute (2)

[0175] Among them: TH: single-strand unit steel flow, T: slab thickness = 250 / 1000, W: slab width = 1600 / 1000, S: strand casting speed = 100 / 100, G: slab specific gravity = 7.8

[0176] Calculation and processing of molten steel amount for calculation:

[0177] TT=LW+TW-LR=170 tons (3)

[0178] Among them: TT: Calculate the amount of molten steel, LW: Ladle molten steel w...

Embodiment 2

[0215] Example 2: Production Example of Thick Plate Single Furnace

[0216] (1) Casting machine process control tracking processing

[0217] Ladle weight: 120 tons, tundish weight: 60 tons, casting width: 1600 mm, casting thickness: 250 mm, casting speed: 100 mm / min.

[0218] (2) Furnace command state tracking compatible processing

[0219] L hot billet = L cold billet × F (1)

[0220] F: heat expansion coefficient of steel type = 1.01

[0221]

[0222] (3) Calculation interval identification

[0223] Calculation of steel flow per unit of single flow:

[0224] TH=T×W×S×G=3.12 tons / minute (2)

[0225] Among them: TH: single-strand unit steel flow, T: slab thickness = 250 / 1000, W: slab width = 1600 / 1000, S: strand casting speed = 100 / 100, G: slab specific gravity = 7.8

[0226] Calculation and processing of molten steel amount for calculation:

[0227] TT=LW+TW-LR=170 tons (3)

[0228] Among them: TT: Calculate the amount of molten steel, LW: Ladle molten steel weight...

Embodiment 3

[0274] Example 3: production example of continuous casting in two furnaces of thin plate and thick plate

[0275] (1) Casting machine process control tracking processing

[0276] Ladle weight: 120 tons, tundish weight: 60 tons, casting width: 1600 mm, casting thickness: 250 mm, casting speed: 100 mm / min. Furnace split point 10 meters. The calculated length of the front furnace is 10 meters, and the ladle and tundish molten steel is the thick plate molten steel of the rear furnace. [0, 10 meters] is the heat of thin plate, [10 meters,] is the heat of thick plate.

[0277] (2) Furnace command state tracking compatible processing

[0278] L hot billet = L cold billet × F (1)

[0279] F: heat expansion coefficient of steel type = 1.01

[0280] Sheet heat cutting command:

[0281]

[0282] Thick plate heat cutting command:

[0283]

[0284]

[0285] (3) Calculation interval identification

[0286] Calculation of steel flow per unit of single flow:

[0287] TH=T×W×...

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PUM

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Abstract

The invention discloses a continuous casting billet cutting control system and a control method thereof. By utilizing the data, such as a sheet hot rolling outgoing direction long billet command, a thick plate rolling machine outgoing direction short billet command and a heat pouring process tracking signal, an optimized cutting method which is compatible with two outgoing direction command specifications and is used for a long billet in a scope of a casting machine is provided to control a continuous casting online cutting machine to perform online one-time cutting, so that aims of reducing cutting loss, and supporting hot rolling and thick plate outgoing direction heat -CAST pouring are achieved; and therefore, the maximization and the optimization of the efficiency of the casting machine are ensured. The continuous casting billet cutting control system is friendly to a user interface and consistent in interface; and calculating results of two types of outgoing direction models canbe seen in a picture by an operator without switching between two pictures, so that the operation interface friendliness is improved.

Description

technical field [0001] The invention relates to the technical field of continuous casting slab cutting automatic control, in particular to a continuous casting slab cutting control system and a control method thereof. Background technique [0002] In the design and construction of the existing continuous casting plant, a suitable continuous casting machine will be selected for construction according to the configuration of the rolling mill in the subsequent process, such as whether it is a thin plate hot rolling mill or a thick plate rolling mill. At the same time, the corresponding continuous casting system also needs to configure the casting machine computer system (host computer), casting machine PLC system, cutting machine PLC system, and the corresponding control modules in it according to the conditions such as the billet command system and the destination of the billet. Automatic control of cutting. Cutting control system of Baosteel thick plate continuous casting ma...

Claims

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Application Information

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IPC IPC(8): B22D11/16B22D11/126
CPCB22D11/163
Inventor 阎建兵严桢博朱海健
Owner BAOSHAN IRON & STEEL CO LTD
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