Slab Continuous Casting Stopper Rod Flow Control and Automatic Opening Technology Based on Liquid Level Automatic Control

A technology of automatic liquid level control and automatic pouring, applied in manufacturing tools, casting equipment, metal processing equipment, etc., can solve the problems of quality defects of slag inclusion in the topping billet, large fluctuation of steel flow size control, etc. The effect of process time elapse, solving unstable state, and improving the level of automation

Active Publication Date: 2020-01-21
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention is aimed at the technical problems existing in the prior art, and provides a slab continuous casting stopper rod flow-controlled automatic pouring process based on automatic liquid level control. This technological scheme mainly solves the automatic pouring process through the following points Unstable control of seedling emergence time, large fluctuations in steel flow size control, production accidents caused by pouring failures, and hidden dangers of slag inclusion quality defects in pouring billets. Realize automatic pouring in a true sense and improve the automation level of continuous casting technology

Method used

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  • Slab Continuous Casting Stopper Rod Flow Control and Automatic Opening Technology Based on Liquid Level Automatic Control
  • Slab Continuous Casting Stopper Rod Flow Control and Automatic Opening Technology Based on Liquid Level Automatic Control
  • Slab Continuous Casting Stopper Rod Flow Control and Automatic Opening Technology Based on Liquid Level Automatic Control

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Embodiment 1

[0058] Embodiment 1: see figure 1 , a slab continuous casting plug rod flow control automatic pouring method based on automatic liquid level control, characterized in that the method comprises the following steps:

[0059] 1 Determination of conditions in the start-up stage of automatic pouring

[0060] 1.1 Collect the parameters of the ladle at the pouring position, and confirm that the signal of the ladle at the pouring position is received;

[0061] 1.2 Collect the information of the tundish car from the preheating position to the pouring position, and confirm that the position information of the new tundish car changes from the preheating position to the pouring position;

[0062] 1.3 Collect the ready signal of the stopper control mechanism on the tundish car and the ready signal of the liquid level detection device;

[0063] 1.4 Collect the initial position information of the single-flow stopper rod when it is fully closed;

[0064] 1.5 When the above conditions 1 to ...

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Abstract

The invention discloses a flow-control automatic pouring process for a slab continuous casting stopper rod based on automatic liquid level control. The process is characterized by comprising the following steps of (1) determining conditions of an automatic pouring initiating stage; (2) opening an stopper rod for the first time during automatic pouring; (3) controlling a stopper rod travel processduring an automatic pouring process; (4) starting a casting machine at an automatic pouring final stage; and (5) automatically starting the casting machine, so that the whole automatic pouring processflow is finished. According to the scheme, the problems of hidden dangers of pouring failure production accidents and pouring head billet included slag quality defect caused by instability in controlling emerging time and big steel stream size control fluctuation during the automatic pouring process are solved, a real sense of automatic pouring is realized, and an automation level of a continuouscasting process is improved.

Description

technical field [0001] The invention relates to a pouring process, in particular to a slab continuous casting plug flow-controlled automatic pouring process based on automatic liquid level control, and belongs to the technical field of slab continuous casting process in the metallurgical industry. Background technique [0002] In the continuous casting production process, the continuous casting casting process includes gradually injecting molten steel into the new tundish through the ladle. After the molten steel reaches a certain tonnage, the molten steel is injected through the submerged nozzle by manually opening the stopper or manually controlling the slide plate. into the crystallizer. After the molten steel in the crystallizer meets the process time requirements, the continuous casting tension-leveler is started, and the slab is gradually pulled out at a certain speed. In this period of time, the liquid level gauge above the mold cannot detect the actual molten steel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/16B22D41/20
CPCB22D11/161B22D41/20
Inventor 王勇邹世文
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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