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A method and system for continuously predicting phosphorus content in converter molten pool

A technology of phosphorus content and molten pool, applied in the field of metallurgy, can solve the problem of low hit rate of phosphorus content at the end of converter

Active Publication Date: 2020-11-13
UNIV OF SCI & TECH BEIJING +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method and system for continuously predicting the phosphorus content in the converter molten pool, so as to solve the problem that the hit rate of the phosphorus content at the end point of the converter is low in the existing scheme, and to realize the determination of the operating process, equipment, and raw materials. Continuous prediction of phosphorus content in converter steel under auxiliary material conditions, so as to adjust the converter operation process and improve the hit rate of phosphorus content at the end of the converter

Method used

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  • A method and system for continuously predicting phosphorus content in converter molten pool
  • A method and system for continuously predicting phosphorus content in converter molten pool
  • A method and system for continuously predicting phosphorus content in converter molten pool

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no. 1 example

[0087] see figure 1 and figure 2 , the present embodiment provides a method for continuously predicting the phosphorus content in the converter molten pool, the method comprising the following steps:

[0088] S101, obtaining converter equipment parameters, raw and auxiliary material parameters, and process parameters;

[0089] It should be noted that, in this embodiment, converter equipment parameters and raw and auxiliary material parameters are stored in the equipment and raw and auxiliary material parameter database; process process parameters are stored in the process process parameter database; when storing, the data is stored in In the corresponding database; when used, the corresponding data is read from the database through the reading system.

[0090] Among them, converter equipment parameters include converter body size information and oxygen lance parameter information; wherein, converter body size information includes converter height, molten pool depth, convert...

no. 2 example

[0133] see image 3 , the present embodiment provides a system for continuously predicting the phosphorus content in the converter bath, the system comprising:

[0134] Equipment and raw and auxiliary material parameter database, used to store converter equipment parameters and raw and auxiliary material parameters; wherein, the converter equipment parameters include converter body size information and oxygen lance parameter information; wherein, the converter body size information includes converter height, molten pool The depth and the radius of the converter molten pool; the oxygen lance parameter information includes the number of holes in the oxygen lance nozzle, the angle of the oxygen lance nozzle and the diameter of the throat; the raw and auxiliary material parameters include the name of scrap steel and slagging material used in the converter blowing process and ingredients;

[0135] The process parameter database is used to store the process process parameters, the ...

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Abstract

The invention provides a method and system for continuously predicting the phosphorus content of a converter bath. The method comprises the steps of obtaining the converter device parameters, raw andauxiliary material parameters and process technological parameters; based on the converter device parameters and the process technological parameters, separately calculating the area of a converter bath gas-liquid reaction interface and the area of a slag-gold reaction interface; based on the raw and auxiliary material parameters and the process technological parameters, calculating the equilibrium phosphorus concentration of the slag-gold reaction interface; and based on the area of the gas-liquid reaction interface, the area of the slag-gold reaction interface and the equilibrium phosphorusconcentration of the slag-gold reaction interface, calculating the dephosphorization rate in the converter blowing process, thereby realizing the continuous calculation of the phosphorus content of the converter bath. According to the method for continuously predicting the phosphorus content of the converter bath, the purpose of continuously predicting the phosphorus content of the converter bathunder the condition of determining the device, materials and process parameters is achieved on the basis of the device and material parameters and the converter blowing process parameters and in combination with a mathematical calculation model.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method and system for continuously predicting the phosphorus content in a converter molten pool. Background technique [0002] In converter blowing, the control of the composition of molten steel at the end of converter blowing, especially the control of the phosphorus content of molten steel at the end is very important for the production of qualified molten steel. During the entire converter blowing process, the composition of molten iron, temperature, oxygen blowing volume, oxygen blowing flow rate, oxygen lance position, and the addition time and amount of slagging materials such as lime and magnesium balls will affect the molten steel at the end of the converter. Phosphorus content has an effect. [0003] At present, iron and steel enterprises generally determine the amount of oxygen blowing and the amount of slag-forming materials such as lime and dolomite in this fur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/205G06F30/00C21C5/30
CPCC21C5/30G01N33/205Y02P10/20
Inventor 包燕平邹长东王达志王耀王敏麻晗
Owner UNIV OF SCI & TECH BEIJING
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