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A correction method for blast furnace spiral cloth

A cloth and spiral technology is applied in the field of correction of blast furnace bell-type top spiral cloth. , the effect of improving furnace conditions

Active Publication Date: 2017-02-08
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the pressure collected by the weighing cabinet fluctuates or the soft connection of the tank itself touches, it will affect the weight displayed by the weighing cabinet, especially when the weight becomes larger, it will directly affect the fabric weight of each ring, resulting in The remaining materials of each batch will be distributed in the last ring, which will increase the weight of the ore in the center of the furnace and inhibit the development of the central airflow in the blast furnace. Over time, it will easily affect the forward movement of the blast furnace and cause the furnace condition to deteriorate.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] For the ore material type O1, the single ring position of the spiral material distribution program originally set by the furnace top distribution program is 9, 8, 7, 6, 5, 4, that is, its X1 is the fourth ring position. The Xj set by the fabric correction program is 2 ring positions higher than X1, that is, it is set as the sixth ring position.

[0015] Under normal circumstances, when the ore material type O1 is distributed, it is executed according to the single ring positions 9, 8, 7, 6, 5, and 4 of the spiral material distribution originally set in the furnace roof distribution program.

[0016] When the weight displayed on the weighing cabinet changes greatly during the fabric distribution process, manually start the fabric correction program, press the upside-down fabric execution sign button in the spiral fabric list screen, and when the fabric reaches the last fabric ring position X1 (p. 4 ring positions), the material distribution chute will automatically tilt ...

Embodiment 2

[0018] For the ore material type O2, the single ring position of the spiral material distribution program originally set by the furnace roof distribution program is 9, 8, 7, 6, 5, that is, its X1 is the fifth ring position. The Xj set by the cloth correction program is the seventh ring position.

[0019] Under normal circumstances, when the ore material is distributed O2, it is executed according to the single-ring positions 9, 8, 7, 6, and 5 of the spiral material distribution program originally set in the furnace roof distribution program.

[0020] When the weight displayed on the weighing cabinet changes greatly during the fabric distribution process, manually start the fabric correction program, press the upside-down fabric execution sign button in the spiral fabric list screen, and when the fabric reaches the last fabric ring position X1 (p. 5 ring positions), the material distribution chute will automatically tilt up according to the tilting angle of the searched spiral ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The present invention provides a blast furnace screw material distribution correcting method. According to the method, an inverse carrying material distribution performing mark button is arranged in a screw material distribution list image; a material distribution correcting process is additionally set in a blast furnace top material distribution process; a screw material distribution performing ring position Xj corresponding to the final material distribution ring position X1 is set in advance; during an ore material distribution process, the material distribution sluice tilting angle of the X1 is performed according to the Xj tilting angle; during the material distribution process, when the weight displayed by a weighing cabinet produces the large change, the material distribution collecting process is manually started, and the material distribution sluice automatically tilts upward according to the retrieved tilting angle of the screw material distribution performing ring position Xj; and after the batch material distribution is completed, the tilting angle of the screw material distribution recovers to perform the originally-set furnace top material distribution process. With the method of the present invention, the condition that the material at the final ring position is centralized and distributed at the center position in the furnace can be avoided, such that the center gas flow in the blast furnace is active, the distribution of the gas flow in the furnace is rational, the furnace condition is improved, and the smooth blast furnace smelting production can be ensured.

Description

technical field [0001] The invention belongs to the field of blast furnace ironmaking technology, and in particular relates to a method for correcting spiral material distribution on a materialless bell top of a blast furnace. Background technique [0002] The material distributing method of blast furnace bell-type furnace top generally adopts spiral distributing, and its distributing ring positions are set up from 1 to 11, and a total of 11 ring positions are set. According to the distributing system, the tilting angle of the distributing chute decreases successively with the weight collected by the weighing tank. Complete the furnace cloth. However, when the pressure collected by the weighing cabinet fluctuates or the soft connection of the tank itself touches, it will affect the weight displayed by the weighing cabinet, especially when the weight becomes larger, it will directly affect the fabric weight of each ring, resulting in The remaining materials of each batch wil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/20
Inventor 刘伟张延辉江治飞马永昌龚继兵
Owner ANGANG STEEL CO LTD
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