Estimation method of blast furnace softening zone

摘要

The present invention relates to a method for predicting a soft fusion zone of a blast furnace process, and the present inventors have studied the soft fusion zone shape estimation method, and proposed the present invention based on the results, the present invention is a blast furnace Based on the results of the operation, the blast furnace dismantling investigation, and various literatures, the factors that are highly correlated with the shape change of the softening fusion zone are selected and estimated by the artificial neural network using them as input sources, the temperature, pressure and cross zone of the lower part of the furnace. The purpose of the present invention is to provide a method for more accurately estimating softening fusion zone by estimating the position of the vicinity of the softening fusion zone or the stratum using sonde or shaft sonde data.;The present invention provides a method of predicting softening fusion zone blast furnace, comprising: pre-processing data on operating conditions; Estimating the shape of the softening fusion zone by the shape comparison method using the artificial neural network; And estimating the position of the softening zone, wherein the data preprocessing step sets standard data on operating conditions, compares the set standard data with actual data, and analyzes a clockwise trend; In the step of estimating the position of softening fusion zone, the position of the softening fusion zone is estimated by the furnace wall temperature of the fusion zone, and the position of the stratum of the softening fusion zone is estimated by the heat transfer of the blast furnace mass. That's the point.