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An Intelligent Judgment and Disposal Method for Continuous Casting Outage Accidents

A disposal method and a technology of intelligent judgment, applied in the field of steel continuous casting, can solve problems such as accident expansion, and achieve the effect of improving the level of automation and improving the labor efficiency of personnel

Active Publication Date: 2021-02-05
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it solves the hidden danger of the failure to deal with the outage accident when there is no one on duty at the continuous casting pouring site, resulting in the expansion of the accident.

Method used

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  • An Intelligent Judgment and Disposal Method for Continuous Casting Outage Accidents
  • An Intelligent Judgment and Disposal Method for Continuous Casting Outage Accidents
  • An Intelligent Judgment and Disposal Method for Continuous Casting Outage Accidents

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Embodiment Construction

[0027] In this example, the state of the casting machine has five working modes: "preparation", "uploading", "holding", "pouring", and "tail blank", of which the "pouring" mode is the normal working mode;

[0028] The liquid level height control mode has three control modes: "automatic", "manual" and "semi-automatic", of which the "automatic" mode is the normal control mode;

[0029] The allowable minimum pulling speed value set by the process is 0.6m / min;

[0030] The height range of molten steel in the normal working mold is 860mm to 720mm;

[0031] A method for intelligently judging and disposing of a flow interruption accident in continuous casting includes three parts: automatic monitoring of the production state of a casting machine in the first stage, process data processing in the second stage, and automatic disposal of the flow interruption accident in the third stage. It is characterized in that, the method comprises the following steps:

[0032] 1. Automatic monit...

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Abstract

The invention relates to an intelligent judgment and disposal method for a continuous casting outage accident. The method of the present invention includes: (1) automatic monitoring of the production status of the continuous casting machine, and collecting relevant process data; (2) judging the collected process data; Immediately after a cut-off occurs, an audible and visual alarm signal is issued to remind on-site operators to enter the scene; ② Output the emergency shutdown signal of the on-site flow control mechanism to shut down the flow control mechanism in an emergency; ③ Collect the tracking value L1 of the flow line length when the cut-off accident is triggered and the current real-time streamline length tracking value L2; ④ calculate the difference L between L2 and L1; length of the device—Y1)=L3, then a casting machine shutdown command is issued, and the automatic disposition of the interruption accident ends. The invention solves the hidden danger of a flow failure accident when the continuous casting pouring site is unattended.

Description

Technical field: [0001] The invention relates to a method for intelligently judging and disposing of a flow interruption accident in continuous casting, belonging to the technical field of iron and steel continuous casting. Background technique: [0002] In the iron and steel production process, the so-called continuous casting is that the molten steel of the large ladle is injected into the tundish, and then the molten steel of the tundish is continuously injected into the mold, and the slab initially formed in the mold (there is still a large amount of liquid inside molten steel), after exiting from the lower mouth of the mold, it is continuously cooled and formed by secondary cooling, thereby forming a continuous slab pulling process. Due to various reasons, if the molten steel injected from the tundish to the mold is abnormally interrupted, the entire continuous casting process will be interrupted. This abnormal production accident is called a "cut-off" accident in the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/18
Inventor 邹世文李云刚夏建超曾昌富郑雷
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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