Converter steel ladle bottom argon blowing automatic control system

An automatic control system and bottom-blowing argon technology, which is applied in the field of automatic control system for bottom-blowing argon in converter ladle, can solve the problems of insufficient argon blowing in the ladle, influence on composition and temperature, and great influence, so as to prevent argon gas from escaping and escaping. The effect of artificial waste, reducing the segregation of molten steel components, and improving the purity of molten steel

Inactive Publication Date: 2018-08-24
辽宁鸿盛冶金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this process method is that the argon blowing operation of the ladle is greatly affected by the operator's own operating habits, and the insufficient argon blowing of the ladle will affect the composition and temperature, and even cause the ladle to overturn

Method used

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them.

[0025] The automatic control system for argon blowing at the bottom of the converter ladle is characterized in that it includes a main module of the system, a judging module of the tapping stage, a judging module of the argon station stage, a gas volume adjustment module, a pipeline switch module and a manual control module;

[0026] System working mode:

[0027] The software system is interconnected with the industrial PLC data network, and the sensor parameters of the converter tapping argon blowing system are read in real time. The system judges and disposes according to the set rules, and sends execution instructions to the PLC system, and the PLC system controls the electric shu...

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PUM

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Abstract

The invention relates to the improvement of a converter steel ladle bottom argon blowing automatic control system. The converter steel ladle bottom argon blowing automatic control system is characterized by comprising a system main module, a tapping stage judgment module, an argon station stage judgment module, a gas amount adjusting module, a pipeline on-off module and a manual control module. The converter steel ladle bottom argon blowing automatic control system has the advantages that standard operation of converter argon blowing is achieved, the argon blowing effect is improved, and therefore the purity degree of molten steel is increased; molten steel composition segregation and continuous casting flocculant flow caused by non-in-place or nonstandard argon blowing due to manual reasons are reduced; argon blowing is managed in a refined manner, and argon moving and manual waste are eradicated; and convenience is brought to all-procedure accident analysis, and process management dead zones are eliminated.

Description

technical field [0001] The invention relates to an improvement of an automatic control system for blowing argon at the bottom of a converter ladle. Background technique [0002] The existing oxygen top-blown converter steelmaking process is as follows: According to the batching requirements, first put scrap steel into the furnace, then pour molten iron, and add appropriate amount of slagging materials (such as lime, dolomite, etc.). After feeding, the oxygen lance is inserted into the furnace from the top of the furnace, and oxygen (high-pressure oxygen flow with a purity greater than 99%) is blown in, so that it directly reacts violently with the hot molten iron in the furnace to remove C, Si, Mn, P, S and other impurity elements. After removing most of the sulfur and phosphorus, when the composition and temperature of the molten steel meet the requirements, the blowing is stopped and the steel is lifted out. Various alloys and deoxidizers are added during the tapping pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/072
CPCC21C7/072
Inventor 王希宏
Owner 辽宁鸿盛冶金科技有限公司
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