A Method of Adjusting the Shape of Soft Melting Band by Using Scanning Radar

Abstract

The invention provides a method for adjusting the shape of the soft melting zone by using scanning radar, which is characterized in that it includes the following steps: within a certain period of time, the scanning radar is used to obtain the shape of the material surface multiple times to calculate the distribution of the cutting speed, and the operating parameters of the blast furnace are collected. Obtain the corresponding blanking speed distribution to form a sample library; obtain the distribution pattern of the soft melting zone by pattern recognition of the blast furnace operating parameters; realize the blanking speed pattern recognition by integral calculation of the blanking speed distribution; determine the next blast furnace operating parameters The optimal cooperation between the material speed mode and the soft melting zone distribution mode determines the best operating range of the feeding speed and soft melting zone characterization parameters; compares the current blast furnace status and the best operating range to determine the soft melting zone adjustment method. The object of the present invention is to aim at the defects of the prior art, and provide a method for adjusting the shape of the soft melt zone by using scanning radar, so as to effectively maintain the reasonable distribution of air flow in the blast furnace and maintain the stability of the blast furnace.

Description

technical field [0001] The invention relates to the technical field of blast furnace soft fusion zone control, in particular to a method for adjusting the shape of the soft fusion zone by using scanning radar. Background technique [0002] After the charge in the blast furnace is loaded into the furnace from the top of the furnace, the charge is distributed in layers. The hot air (1000-1280) ℃ blown into the lower part of the blast furnace acts on the coke. On the one hand, C+CO2=2CO, on the other hand, a large amount of heat is released. During the rising process of gas, on the one hand, the charge is heated, and on the other hand, CO reacts with iron oxides in the charge to reduce the iron and generate a large amount of slag. During this process, the change of the lower charge will create a certain lower space. The upper charge gradually descends under the action of gravity and friction to meet the smooth progress of blast furnace smelting. [0003] Coke will not melt dur...

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Problems solved by technology

[0016] As shown in Documents 1-10, the above articles have theoretically verified the importance of the softening zone in the blast furnace operation process, and also found that the optimization of the fabric directly determines the shape and position of the softening zone, and the softening zone determines the air permeability, It determines the transmission and enrichment of unburned coal powder, affects the blast furnace gas flow distribution, and thus determines the production efficiency of the blast furnace. Although this knowledge can be obtained, how to use cloth to adjust the shape and position of the soft melting zone is not covered in the above articles, mainly I don't know the distribution of the cloth, and the cloth adjustment cannot form a closed loop

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