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A Weighing Method for Remaining Slag Amount in Converter

A converter and slag retention technology, used in the manufacture of converters and other directions, can solve the problems of high production cost and unstable control of the end point of the intermediate converter, and achieve the goal of reducing production costs, improving molten steel quality and smelting rate, and improving the level of stable control. Effect

Active Publication Date: 2022-06-21
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of unstable end point control and high production cost of the converter in the prior art

Method used

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  • A Weighing Method for Remaining Slag Amount in Converter

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying th...

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Abstract

The invention belongs to the technical field of converter steelmaking, and specifically provides a method for weighing the amount of slag remaining in a converter, including S1: in the continuous production process of the converter, select a slag-retaining heat of the converter as a reference heat; Slag splashing operation, start converter slag dumping to pour out all liquid slag, and collect the current value as the reference furnace current value when the furnace body turns to reach the preset inclination angle of signal collection; S2: Select other conventional converter slag furnaces, After the steel is finished, the slag dumping operation is completed first, and then the current value is collected as the current value of the slag remaining furnace when the furnace body turns to reach the preset inclination angle of signal acquisition; S3: compare the reference furnace current value and the slag remaining furnace current value, and correspond to the benchmark The amount of slag left can correspond to the amount of slag left this time. The quantitative amount of slag left by calculation provides accurate data support for the control of the decarburization rate in the automated model, thereby reducing production costs, improving the stable control level of the end point of the converter, and improving the quality of molten steel and the refining rate.

Description

technical field [0001] The invention belongs to the technical field of converter steelmaking, and in particular relates to a method for weighing the amount of slag remaining in a converter. Background technique [0002] The converter cannot track the composition and quality of raw materials and auxiliary materials in real time, such as the composition of scrap steel, the pulverization rate of auxiliary materials, etc., and the instability of the tempering process makes the tempering process unsuitable to control, especially based on the auxiliary gun control model system. The hit rate at the end of the converter has developed to a bottleneck stage and needs to be further improved. The decarburization rate at the end of the converter is an important basis for the sub-gun control model to calculate the heating rate of the molten pool and the carbon content of the molten pool, and the decarburization rate has a strong correlation with the oxygen supply rate and the carbon pulli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/46
CPCC21C5/4673
Inventor 罗磊封伟华陈建辉许海虹张钟蓓袁晓峰李贝王少强李伟坚杨燕
Owner WISDRI ENG & RES INC LTD
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