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Method, device and system for controlling steel-making process of converter

A process control, converter steelmaking technology, applied in the direction of manufacturing converters, etc., can solve problems such as poor control effect, and achieve the effect of overcoming poor stability, accurate control, and improving stability

Inactive Publication Date: 2012-02-08
田陆
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a method, device and system for controlling the converter steelmaking process, so as to solve the problem in the prior art that the control method is affected by the lowering of the converter smoke hood and the slag accumulation at the furnace mouth, and the control effect is poor

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  • Method, device and system for controlling steel-making process of converter
  • Method, device and system for controlling steel-making process of converter
  • Method, device and system for controlling steel-making process of converter

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Embodiment Construction

[0036] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0037] figure 1 is a schematic diagram of a method for controlling the converter steelmaking process according to an embodiment of the present invention, such as figure 1 As shown, the method mainly includes the following steps:

[0038] Step S11, obtaining CO and CO in the furnace gas composition 2 content, record converter oxygen blowing volume;

[0039] Step S13, according to CO and CO 2 Calculate the decarburization oxygen efficiency of the converter and the change rate of the converter decarburization oxygen efficiency based on the content and the oxygen blowing amount of the converter;

[0040] Step S15, according to the decarburization oxygen efficiency of the converter and the chan...

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Abstract

The invention provides a method, a device and a system for controlling the steel-making process of a converter, which are used for solving the problems of influence of descending of a converter gas hood and the slag accumulation at a converter mouth on the control effect and poor control precision in the prior art. The method comprises the following steps of: a step S11 of obtaining content of CO and CO2 in converter gas and recording the oxygen blowing amount of the converter; a step S13 of calculating the oxygen decarburization efficiency of the converter and the change rate of the oxygen decarburization efficiency of the converter according to the content of CO and CO2 and the oxygen blowing amount of the converter; a step S15 of outputting splashing forecast information or drying return forecast information according to the oxygen decarburization efficiency of the converter and the change rate of the oxygen decarburization efficiency of the converter; and a step S17 of controlling the oxygen blowing operation according to the splashing forecast information or the drying return forecast information. Due to the adoption of the technical scheme, the instability of control by artificial experience is eliminated; and compared with the existing sonar slag-forming monitoring method, the method is not influenced by the descending of the converter gas hood and the slag accumulation at the converter mouth, is more accurate to control and ensures the stability of the smelting process to be improved.

Description

technical field [0001] The invention relates to a method, device and system for controlling a converter steelmaking process. Background technique [0002] Converter steelmaking is the main steelmaking method at present, and its steel production accounts for more than 60% of the total steel production. Improving the control level of converter steelmaking has always been valued by people. Abnormal furnace conditions such as splashing and back-drying disturb the normal smelting operation, reduce the metal yield, affect the dephosphorization effect, and endanger the safety of operators in front of the furnace. Therefore, it is necessary to stabilize the smelting process and reduce the occurrence of splashing and back-drying. They are the targets of research by metallurgists. [0003] The traditional control method of converter steelmaking process is to observe the state of slag manually. The procedure is generally to observe the flame characteristics of the furnace mouth and j...

Claims

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Application Information

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IPC IPC(8): C21C5/30
Inventor 田陆刘卓民周存波
Owner 田陆
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