Method for measuring ore matching efficiency of integrated furnace charge of blast furnace

Abstract

The invention discloses a method for measuring ore matching efficiency of an integrated furnace charge of a blast furnace. The method comprises the following steps: firstly, measuring a total characteristic value Sn of the drop performance of mixed blast furnace charge of each ore matching rate by using an iron ore soft melting drop test device, and then measuring a total characteristic value sn of the drop performance of sintered ore used by each mixed blast furnace charge; finally measuring the ore matching efficiency etan of the ore matching rate of production of each blast furnace; comparing the ore matching efficiency of the ore matching rate under the condition that other metallurgical performances of the integrated furnace charge of the blast furnace is kept appropriate. By adopting the method, calculation of the ore matching efficiency can be achieved before implementation of the ore matching rate of production of the blast furnace; the ore matching efficiency can be adjusted when being not good; the production loss is avoided; the ore matching efficiency can be accurately defined; comparison of the ore matching efficiencies of all ore matching rates can be achieved; the ore matching rate is optimized; reasonable demands proposed by the blast furnace charge structure are fully met before the ore matching rate of the production of the blast furnace comes into service.

Description

technical field

[0001] The invention belongs to the field of metallurgy and relates to a method for measuring the comprehensive charge ore blending efficiency of a blast furnace. technical background

[0002] Since the "comprehensive blast furnace charge blending model based on high-basicity sinter" has become a generally recognized blast furnace charge structure model at home and abroad, at present, discussing the ore blending efficiency of blast furnace comprehensive charge is actually discussing "based on high Alkalinity sintered blast furnace comprehensive charge" ore blending efficiency.

[0003] The practice of blast furnace production has proved that the "comprehensive blast furnace charge ore blending mode based on high-basic sinter" can obtain better pig iron smelting effect and better technical and economic indicators of blast furnace production, especially the high-basic sinter plus Adding acid pellets plus a proper amount of raw ore, people have formed a fix...