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Method for quantizing and adjusting edge airflow of blast furnace

An edge airflow, blast furnace technology, applied in blast furnaces, blast furnace details, furnaces, etc., can solve the problems of collapsing sliding scales, unfavorable blast furnace longevity, and complicated operating conditions and distribution methods.

Active Publication Date: 2018-05-18
SHANXI TAIGANG STAINLESS STEEL CO LTD
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Problems solved by technology

The operating conditions, raw material conditions, and distribution methods of the blast furnace are very complicated. At present, the adjustment of the blast furnace distribution system still mainly depends on experience. It is urgent to develop a method that can quantitatively adjust the blast furnace airflow
[0003] Controlling the edge airflow of the blast furnace is the key to ensure the stability and straightness of the blast furnace. Insufficient edge airflow will easily lead to thickening of the furnace wall and material collapse. Excessive development of edge airflow will easily lead to fluctuations in heat load and pipelines, which is not conducive to the longevity of the blast furnace

Method used

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  • Method for quantizing and adjusting edge airflow of blast furnace
  • Method for quantizing and adjusting edge airflow of blast furnace
  • Method for quantizing and adjusting edge airflow of blast furnace

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Embodiment Construction

[0014] 1. Calculation of coke load index and distribution platform width

[0015] This article uses the paper "Research and Application of Large Blast Furnace Fabric Model" (published in "Journal of Northeastern University" (Natural Science Edition), Volume 37, Issue 5, May 2016, Authors: Li Zhuangnian, Liu Zhenggen, Chu Mansheng, Chen Shuwen) The method establishes a blast furnace charge distribution model, and calculates the falling point of the blast furnace charge and the radial thickness of each ring of charge under different charge parameters. Explanation: The calculation method of the charge drop point and the radial thickness of each circle of charge is not limited to the calculation method of the charge distribution model.

[0016] The input items of the cloth distribution model include: the speed of the chute, the length of the chute, the radius of the furnace throat, the mass of the charge (sintering, pellets, coke, coke) m 炉料 , charge ratio, natural pile angle, bu...

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Abstract

The invention relates to the field of blast furnace production. In a method for quantizing and adjusting the edge airflow of a blast furnace, problems existing in the operation of the blast furnace are analyzed by virtue of the relationship between a model calculation result and furnace condition parameters, a distribution mode is optimized, distribution parameters are quantized, the charge systemadjustment of the blast furnace is guided, and blast furnace production is promoted. According to the method disclosed by the invention, a coke load index, a platform width and the like of each areaof the blast furnace are calculated on the basis of the distribution mechanism of the blast furnace; the relationship between the distribution model calculation result and the edge airflow of the blast furnace is obtained in combination with production practice; and a method for quantizing and adjusting edge airflow is disclosed.

Description

technical field [0001] The invention relates to the field of blast furnace production. Background technique [0002] Blast furnace material distribution is an important operating system in blast furnace operation, and it is a key link for blast furnace stability, smooth movement, low consumption and high efficiency. The operating conditions, raw material conditions, and distribution methods of the blast furnace are very complicated. At present, the adjustment of the blast furnace distribution system still mainly depends on experience. It is urgent to develop a method that can quantitatively adjust the blast furnace airflow. [0003] Controlling the edge airflow of the blast furnace is the key to ensure the stability and smoothness of the blast furnace. Insufficient edge airflow will easily lead to thickening of the furnace wall and material collapse. Excessive development of edge airflow will easily lead to fluctuations in heat load and pipelines, which is not conducive to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B5/00G06F17/50
CPCC21B5/006G06F30/20
Inventor 李壮年阮根基李宝峰宋建忠叶健虎
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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