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Pattern-based automatic control device for converter steelmaking and its application method

An automatic control device and converter steelmaking technology, applied in the direction of manufacturing converters, etc., can solve the problems of unstable operation, mistakes, and high requirements for operators' professional skills, and achieve the effect of automatic control.

Active Publication Date: 2017-09-08
WUHAN IRON & STEEL ENG TECH GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manual method needs to grasp the timing of the smelting operation, and requires high professional skills of the operator. There are multiple steps in the operation process, which is prone to unstable or erroneous operations.

Method used

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  • Pattern-based automatic control device for converter steelmaking and its application method
  • Pattern-based automatic control device for converter steelmaking and its application method
  • Pattern-based automatic control device for converter steelmaking and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Example: such as figure 1 The shown model-based automatic control device for converter steelmaking includes a converter body 1 , an oxygen lance 2 and a feeding device 4 arranged above the furnace mouth of the converter body 1 , and a bottom blowing device 3 arranged at the bottom of the converter body 1 . It also includes an oxygen lance control system for controlling the vertical movement of the oxygen lance 2, a bottom blowing control system for controlling the type and flow rate of the gas blown out by the bottom blowing device 3, and a feeding control system for controlling the type and weight of auxiliary raw materials added by the feeding device 4 .

[0021] The method for using the above-mentioned mode-based automatic control device for converter steelmaking includes the following steps:

[0022] 1) Add scrap steel and molten iron to the converter to form raw materials and calculate the total amount of oxygen blowing required in the steelmaking process and the...

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PUM

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Abstract

The invention discloses a mode-based automatic control device for converter steelmaking and its use method, which includes a converter body, an oxygen lance and a feeding device arranged above the furnace mouth of the converter body, a bottom blowing device arranged at the bottom of the converter body, and includes The oxygen lance control system used to control the vertical movement of the oxygen lance, the bottom blowing control system used to control the type and flow rate of the blown gas from the bottom blowing device, and the feeding control system used to control the type and weight of auxiliary raw materials added by the feeding device. The invention can realize the automatic control of the steelmaking process of the converter, and has the beneficial effects of simple and convenient operation and low error rate.

Description

technical field [0001] The invention relates to a converter steelmaking method, in particular to a mode-based automatic control method for converter steelmaking. Background technique [0002] In converter steelmaking, oxygen is blown into a converter equipped with molten iron and scrap steel to carry out a violent oxidation reaction, to remove carbon and harmful impurities in molten iron, and to turn molten iron into molten steel. During the blowing process, the auxiliary raw materials are added from the silo to form slag, and the impurities are brought into the slag through the steel slag interface reaction, and the stirring gas such as nitrogen or argon is blown at the bottom to strengthen the stirring of the molten pool, which is conducive to the full progress of the chemical reaction . [0003] At present, in the process of converter steelmaking, the operator needs to often set the oxygen flow rate, bottom blowing gas flow rate, nitrogen and argon switching timing on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/35C21C5/46
Inventor 黄健陈李军赵会斌李晓勤
Owner WUHAN IRON & STEEL ENG TECH GROUP