Iron ore sintering and ore selection method and system

By calculating the effective sintering temperature area of ​​the sintering material, the problem of insufficient guidance of sintering results in the existing iron ore sintering technology is solved, and more accurate and reliable sintering scheme screening and production process stability are achieved.

CN115612833BActive Publication Date: 2025-03-21SHANDONG IRON & STEEL CO LTD
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Patent Information

Application Number
CN202211343625.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-31
Publication Date
2025-03-21
Estimated Expiration
2042-10-31

AI Technical Summary

Technical Problem

In the existing iron ore sintering technology, the results of the sintering cup experiments are not accurate enough, resulting in large fluctuations in actual production and theoretical test results.

Method used

By recording temperature changes during the sintering material heating process, combining the minimum sintering assimilation temperature, the effective sintering temperature area is calculated to measure the advantages and disadvantages of the sintering results, and screening the optimal iron ore sintering ore distribution plan based on this indicator.

Benefits of technology

It improves the accuracy and reliability of determining the sintering scheme, reduces the impact on factors such as fuel, air exhaust, breathability, water content, and reduces fluctuations in the production process.

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Abstract

The embodiment of the present invention discloses a method and system for screening sintering ore blending of iron ore, including: presetting a plurality of blending schemes, wherein the proportions of iron ore species are set to more than two groups, and the proportions of flux and its corresponding fuel are set to more than two groups; extracting all the iron ore proportion groups in the preset blending scheme, and one group of flux and its corresponding fuel proportion groups, combining them into a first experimental group, and conducting a first assimilability temperature experiment; obtaining the iron ore proportion group with the lowest assimilability temperature in the first experimental group, and all the flux and its corresponding fuel proportion groups in the preset blending scheme, combining them into a second experimental group, and conducting a second assimilability temperature experiment and a sintering cup experiment; screening the iron ore sintering blending scheme according to the effective sintering temperature area in the sintering cup experiment. The embodiment of the present invention adopts the effective sintering temperature area as an indicator, which is less affected by factors such as fuel, ventilation, air permeability, and water content, and is more accurate and reliable in guiding the determination of the sintering scheme.
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