Blast furnace screw material distribution correcting method

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...

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.