Method for preventing converter from dumping steel

A converter and anti-falling technology, applied in the manufacture of converters, etc., can solve problems such as high risk of shaking furnace operation, steel spilling accidents, equipment safety accidents, etc., and achieve the effect of avoiding non-equipment failure production accidents

Active Publication Date: 2010-03-31
ANGANG STEEL CO LTD
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AI Technical Summary

Problems solved by technology

[0002] The operation of the shaking furnace in the converter smelting process is very dangerous, and there are high requirements on the precision of the equipment and the quality of the operators. A slight negligence in the operation will lead to a steel spilling accident, resulting in serious equipment and safety accidents
Usually, because the operator's illegal operation or misoperation is also one of the causes of accidents, how to avoid accidents is a problem that we need to focus on solving

Method used

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  • Method for preventing converter from dumping steel

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Embodiment Construction

[0011] The system is mainly composed of PLC equipment, converter angle detection device, tilting DC speed control device, etc., and is controlled by PLC program. The system operation is triggered by the converter iron exchange signal, and the chain protection is started during the entire smelting cycle, and the system operation is terminated by the operator clicking the "release button" on the HMI screen as an instruction. The start and stop of the entire system is simple and convenient.

[0012] The smelting cycle of the converter starts with adding iron and ends with the completion of tapping. During this cycle, the converter is rotating in the form of a heavy tank. Therefore, the important part of the operation is within this cycle. Any sloppy operation or violation of regulations will be punished. Cause serious molten steel leakage accident. Before the converter performs the iron mixing operation, the operator needs to press the "iron mixing" button. At this time, the prot...

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Abstract

The invention relates to the technical field of steel-making automation, in particular to a method for preventing a converter from doumping steel. Through the control of a PLC, the steel dumping prevention is realized by carrying out corresponding blocking on the gear positions of second, third and fourth gears of a dumping controller of the converter, a numerical controller enabling and switching-off ports; when a system carries out the sampling and slagging of a rocking furnace in front of the converter or when an angle goes to steel tapping area behind the converter, the enabling signals ofthe dumping second, third and fourth gears are blocked from transmitting to the numerical controller, so that the converters in the two areas only can work at first-gear speed, no matter which gearsthe controller is set at; during sampling in front of the converter or tapping steel behind the converter, when reaching a certain angle point in a heavy state, the converter is prevented form turningdown. The invention has the advantages that the technology can control steel making operation completely, automatically realize safe linkage of converter rotating, turning down and tapping, achieve asafe and effective automatic operation, and avoid production accidents caused by steel-making disoperation, instead of equipment faults.

Description

technical field [0001] The invention relates to the technical field of steelmaking automation, and relates to a method for preventing steel from falling in a converter. Background technique [0002] The operation of the shaking furnace in the converter smelting process is very dangerous, and there are high requirements on the precision of the equipment and the quality of the operators. A slight negligence in the operation will lead to a steel spilling accident, resulting in serious equipment and safety accidents. Usually, the illegal operation or misoperation of the operator is also one of the causes of accidents. How to avoid accidents is a problem that we need to focus on solving. Contents of the invention [0003] In order to solve the above problems, the present invention provides a method for preventing steel falling in a converter. The method is controlled by PLC, which can effectively avoid steel spilling accidents caused by human misoperation. [0004] To achieve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/28
Inventor 王岱姜信刚崔长新李强武荣利胡连成
Owner ANGANG STEEL CO LTD
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