Method for preprocessing furnace temperature distribution data of scrap copper smelting furnace

Abstract

The invention discloses a method for preprocessing furnace temperature distribution data of a scrap copper smelting furnace. The method comprises the following steps of: acquiring a data set of furnace temperature distribution of the smelting furnace in a stable working state by applying the existing hydrodynamics analog simulating calculation; then selecting a characteristic data set from the data set, and acquiring a space-based function of characteristic changes of the furnace temperature distribution of the smelting furnace through an orthogonal decomposition method; acquiring estimated values of time parameters for furnace heat transfer of the smelting furnace by using a least square method according to space-time distribution characteristics of the furnace heat transfer of the smelting furnace; and finally, acquiring the furnace temperature distribution data of the smelting furnace, which consists of the estimated values of the time parameters and a linear function of the space-based function. By adopting the method, the memory capacity of the data is reduced and the memory space of a processor is released to ensure that the processor can run smoothly, so that the smelting process of scrap copper is accurately controlled.

Description

technical field [0001] The invention relates to the technical field of metallurgical industry measurement and control, in particular to a method for preprocessing temperature distribution data in a scrap copper smelting furnace. Background technique [0002] At present, my country's copper materials are mainly obtained by smelting and purifying waste miscellaneous copper in smelting furnaces by oxidation-reduction method. The specific steps of the oxidation-reduction method are as follows: put the waste miscellaneous copper material into the shaft furnace, then put combustible gas into the combustion chamber, and the waste miscellaneous copper material is melted through the combustion of the combustible gas, and the material solution flows into the reverberatory furnace and is oxidized , slagging, slagging removal, reduction, and refining operations to obtain copper materials with appropriate purity. [0003] Among them, smelting furnaces such as figure 1 It is mainly comp...

AI Technical Summary

Problems solved by technology

However, due to the relatively long smelting time, the amount of temperature distribution data obtained by simulation analysis is usually very large due to the large number of time points. After storing the temperature distribution data in the processor of the program-controlled equipment, when extracting during the smelting process, often Due to the large amount of data, it will occupy a large amount of memory space of the processor, causing the processor to run slowly, which is not conducive to the precise control of the smelting process

Images