Method for regulating basicity of sintered ore

Abstract

The invention relates to a method for regulating the basicity of sintered ore. The method comprises three steps of 1) daily alkalinity regulation, 2) replaced pile alkalinity regulation and 3) ingredient check, wherein in the daily alkalinity regulation process, the alkalinity is accurately regulated through simple and convenient calculation; the replaced pile alkalinity regulation further comprises the determination of the service time of the new stockpile, the first step of replaced pile alkalinity calculation and the second step of replaced pile alkalinity calculation; in the pile replacing process, information such as pile replacing time, ingredient change and regulation quantity is accurately mastered through simple and convenient calculation; the alkalinity is regulated step by step and layer by layer; finally, the regulation amplitude is the product of the theoretical regulation percentage and the regulation quantity. The method provided by the invention is capable of quickly regulating the basicity of the sintered ore, therefore, the regulation time is shortened, and the alkalinity percent of pass and the ratio of first-grade products of the sintered ore are increased; in the period of replacing the pile of the evenly mixed ore, the influence of the raw material ingredient change on the alkalinity of the sintered ore can be effectively reduced, and non-fluctuation pile replacement is realized; as a result, the quality of the sintered ore is stabilized and smooth operation of the blast furnace is guaranteed.

Description

Technical field [0001] The invention belongs to the technical field of sinter production, and particularly relates to a method for adjusting the alkalinity of sinter. Background technique [0002] Sinter is the main raw material for blast furnace smelting, and the stability of its R is particularly important for blast furnace smelting. Because there are many types of raw materials for sintering treatment, and the composition is unstable, the traditional batching adjustment method is to classify and summarize all the ingredients. Each adjustment requires recalculation of all the ingredients. The calculation process is cumbersome and the accuracy is low. Especially when the composition of the mixed ore is changed greatly, the alkalinity of the sinter fluctuates sharply, resulting in poor alkalinity stability of the sinter during the change of the pile, which reduces the quality stability of the sinter. Summary of the invention [0003] The purpose of the present invention is to pro...

AI Technical Summary

Problems solved by technology

Since there are many types of raw materials for sintering and their compositions are not stable, the traditional batching adjustment method classifies and summarizes all the ingredients. Every time an adjustment is made, all the ingredients need to be recalculated. The calculation process is cumbersome and the accuracy is low.

Especially when the composition of the mixed ore changes greatly during stacking, the alkalinity of the sinter fluctuates more violently, resulting in poor stability of the alkalinity of the sinter during stacking, which reduces the quality stability of the sinter

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