Blast furnace smelting cost calculating and optimizing method

Abstract

The invention relates to the field of the pig iron smelting, and particularly relates to a blast furnace smelting cost calculating and optimizing method. The blast furnace smelting cost calculating and optimizing method provided by the invention comprises the following steps: calculating the component content, the alkalinity and the unit price of a sinter according to the ratio of sintering materials; calculating the furnace charging grade, the slag amount and the slag component content by using the component content and the unit price of the sinter according to the proportion of blast furnace burdens; and optimizing the component content, the alkalinity and the unit price of the sinter as well as the furnace charging grade, and the slag amount and the slag component content of the blast furnace. The above process is an inverse process of calculating components of the sinter or the slug components and the slug cost. The blast furnace smelting cost calculating and optimizing method provided by the invention can calculate the proportion of low cost iron ore in an inverse mode, and the blast furnace smelting cost calculating and optimizing method is used to guide the production. Moreover, the blast furnace smelting cost calculating and optimizing method can meet the production requirements of a blast furnace and achieve the favorable smelting cost.

Description

technical field [0001] The invention relates to the field of pig iron smelting, in particular to a cost calculation and optimization method for blast furnace smelting. Background technique [0002] With the shortage of natural resources, there is less and less high-quality iron ore, and the price of ore continues to rise, which has brought a huge impact on the steel industry. The blast furnace process has always been the most cost-consuming link in the smelting process, and its cost accounts for about 6070% of the entire smelting process of iron and steel enterprises. Therefore, the key link to reduce steel costs should be placed on the blast furnace process. Modern blast furnace smelting must achieve high efficiency (utilization factor) and low-cost smelting in order to obtain room for survival and development. [0003] In blast furnace smelting, the cost is mainly composed of iron ore cost and fuel (coke ratio to coal ratio) cost. The former involves reasonable selection ...

AI Technical Summary

Problems solved by technology

[0014] At present, there is no such professional calculation software for multi-purpose in the field of blast furnace smelting at home and abroad. According to the calculation requirements of sintering and blast furnace, this invention designs a professional calculation software for economical operation.

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