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Furnace temperature control method for coping with blast furnace thermal load fluctuation

A control method and technology of heat load, which is applied in the temperature control of blast furnace, and controls the temperature of blast furnace through the fluctuation of heat load of blast furnace, so as to achieve the effect of stabilizing the temperature of blast furnace and ensuring the quality of molten iron

Active Publication Date: 2022-03-04
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to obtain the calculation formula of the control value of the fuel ratio in different heat load change intervals according to the heat balance principle and actual production conditions through the change value of the blast furnace heat load and the corresponding basic fuel ratio per ton of iron, and finally determine Control value of fuel ratio per ton of iron after heat load fluctuation

Method used

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  • Furnace temperature control method for coping with blast furnace thermal load fluctuation
  • Furnace temperature control method for coping with blast furnace thermal load fluctuation
  • Furnace temperature control method for coping with blast furnace thermal load fluctuation

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Embodiment Construction

[0019] The specific embodiments of the present invention are further described below through examples, but the specific embodiments of the present invention are not limited to the following examples.

[0020] Firstly, the benchmark example is introduced. The benchmark example is the traditional measurement method, that is, the control method to stabilize the furnace temperature after the thermal load fluctuation of the blast furnace is determined according to the traditional experience.

[0021] Baseline Example

[0022] Under the known three different working conditions, adjust according to the traditional method, every time the heat load of blast furnace fluctuates by 10000MJ, adjust the fuel ratio by 3kg / t, among which working condition one is the normal furnace condition, and working conditions two and three are the occurrence of blast furnace heat load For the relatively fluctuating furnace conditions, the production levels under the three working conditions are the same....

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Abstract

The invention relates to the field of blast furnace temperature control, in particular to a furnace temperature control method for coping with blast furnace thermal load fluctuation, which accurately reflects fuel ratio adjustment quantity under different thermal load change values according to change characteristics of actual operation parameters of blast furnace production so as to ensure the stability of furnace temperature level and fully utilize in blast furnace thermal system adjustment. And the blast furnace operation can be guided when the furnace condition of the blast furnace fluctuates greatly. According to the utilization of the method, when the furnace condition fluctuates, a basis can be effectively provided for blast furnace recovery operation, operation errors are reduced, and the recovery rhythm is accelerated.

Description

technical field [0001] The invention relates to the field of blast furnace temperature control, in particular to the field of blast furnace temperature control through blast furnace thermal load fluctuations. Background technique [0002] The change of blast furnace heat load is one of the important evaluation bases to reflect the change of blast furnace heat system. Large fluctuations often cause large changes in blast furnace temperature and affect the quality of molten iron. When the heat load changes greatly during the daily production operation of the blast furnace, it is necessary to adjust the fuel ratio of the blast furnace in time to achieve the stability of the blast furnace temperature, ensure the smooth operation of the blast furnace, and ensure the quality of molten iron, which plays a positive role in the production and operation of the blast furnace. [0003] At present, when the blast furnace heat load fluctuates, the furnace temperature control method is ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B5/00
CPCC21B5/006C21B5/003
Inventor 张华巩黎伟李昊堃刘文文郑伟
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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