Data-filtering-based method for judging blast furnace hanging

Abstract

The invention discloses a data-filtering-based method for judging the blast furnace hanging, which comprises the following steps of: carrying out filtering data in the actual operation of a blast furnace by using a grading processing method; according to the blast furnace technology, establishing a primary rule base module for monitoring changes and fluctuations of single parameters of the blast furnace; establishing a secondary rule base module for monitoring joint changes and fluctuations of multiple parameters of the blast furnace; according to data monitoring and evaluation results, timely warning or correcting the abnormal conditions of the blast furnace; flexibly adjusting a primary rule base and a second rule base as required. The data of the primary rule base include a gauge rod, the descent speed of the gauge rod, the ratio of a hot air pressure to an air volume after normalization calculation, permeability indexes, the ratio of an average edge temperature value of cross-shaped four temperature measuring points to the top temperature of the furnace, the ratio of the average edge temperature value of the cross-shaped four temperature measuring points to the throat temperature of the furnace and furnace heat indexes; the data of the secondary rule base include alarm data outputted by the primary rule base. According to the method disclosed by the invention, the problems that traditional rule bases are inconvenient to modify, difficult to maintain, complicated in structure, fuzzy in conclusion and the like are solved, and the conditions of the blast furnace hanging are subjected to targeted monitoring, thereby providing the basis for the production operation of the blast furnace and achieving the aims of reducing the fluctuation of furnace conditions, guaranteeing the stability and the smoothness of the furnace conditions, improving the production efficiency of the blast furnace and reducing the energy consumption.

Description

technical field [0001] The invention relates to the field of blast furnace ironmaking monitoring, in particular to a method for judging blast furnace suspended material based on data filtering. Background technique [0002] Blast furnace ironmaking is a high-temperature, continuous, and complex industrial process that integrates physical and chemical reactions and the three-phase conversion of solid-liquid-gas with heat transfer and mass transfer. Therefore, various parameters and characteristics inside the blast furnace obtained by using traditional detection methods They are all isolated and single, and cannot fully reflect the actual working status of the blast furnace, and cannot effectively guide the blast furnace's material distribution operation, air supply operation, and pulverized coal injection. Suspension of blast furnace material refers to a serious abnormal furnace condition that occurs during the blast furnace production process due to abnormal gas flow movemen...

AI Technical Summary

Problems solved by technology

[0008] Another object of the present invention is to solve the problems of inconvenient modification of the previous rule base (experts are required to participate in the modification), difficult maintenance, complex structure, and vague conclusions through rule maintenance.

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