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Burdening optimization method for sintering

An optimization method and chemical composition technology, applied in the field of sintering batching optimization, can solve problems such as the impact of blast furnace output, and achieve the effect of improving metallurgical performance and increasing economic benefits

Inactive Publication Date: 2014-07-09
CHONGQING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although new ironmaking processes are now emerging, they are unlikely to have a significant impact on blast furnace output for the next decade or more

Method used

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  • Burdening optimization method for sintering

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Experimental program
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Embodiment 1

[0031] A method for optimizing sintering ingredients, characterized in that it comprises the following steps:

[0032] 1) The iron ore powder components in the mixed ore are made of Indian powder, 61 Australian powder, rolled steel sheet, iron concentrate powder, rich ore powder, Guozhong powder, roasted powder and converter slag. The above iron ore powder components are arranged in order, India The powder is the first type of iron ore powder, the 61 Australian powder is the second type of iron ore powder...the converter slag is the eighth type of iron ore powder. Dolomite, limestone, quicklime and coking coal powder are used as components to adjust the alkalinity and carbon content of the mixed ore.

[0033] 2) Determine the content percentage of chemical components in various raw materials, see Table 1. It includes determining the content percentage of 6 kinds of chemical components in various iron ore powders, and the 6 kinds of chemical components are TFe, S, Pb, Zn, K 2...

Embodiment 2

[0059] A method for optimizing sintering ingredients, characterized in that it comprises the following steps:

[0060] 1) Use 58 Australian powder, Iranian powder, Indian powder, iron concentrate powder, rich ore powder, roasting powder, Guozhong powder, and converter slag as the iron ore powder components in the mixed ore, and the above iron ore powder components are arranged in order, 58 Australian powder is the first type of iron ore powder, Iranian powder is the second type of iron ore powder... converter slag is the eighth type of iron ore powder. Dolomite, limestone, quicklime and coking coal powder are used as components to adjust the alkalinity and carbon content of the mixed ore.

[0061] 2) Determine the content percentage of chemical components in various raw materials, see Table 5. It includes determining the content percentage of 6 kinds of chemical components in various iron ore powders, and the 6 kinds of chemical components are TFe, S, Pb, Zn, K 2 O and Na 2...

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Abstract

The invention discloses a burdening optimization method for sintering. Through adjustment of the using amount of each sintering raw material, sintered ore with high quality can be produced, wherein the yield, the dropping strength, the tumbler strength, the abrasion resistance index, the reducibility, the low-temperature reduction disintegration property, and the like of the sintered ore meet requirements of sintering and iron making production.

Description

technical field [0001] The invention relates to a method for optimizing sintering ingredients, in particular to a method for sintering to optimize the formula of adding low-grade iron ore and iron ore with complex composition, so that its metallurgical performance can meet the requirements of sinter production and blast furnace ironmaking. Background technique [0002] The quality of sinter (iron ore) is directly related to the progress of blast furnace smelting and the technical and economic indicators of blast furnace production. Due to the increasingly scarce iron ore resources in my country, most iron ore is low-grade iron ore, and iron ore for iron and steel enterprises In the case of complex sources, the development of low-grade, multi-quality iron ore utilization, sintering ore blending optimization and sintering process research is an inevitable requirement to fully meet the existing economic situation and the conditions of iron and steel enterprises. [0003] The sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/16
Inventor 刘清才牛德良朱博洪王铸孟飞朱广太张东升陈黔湘肖扬武陈毛锐雷仕江周成林
Owner CHONGQING UNIV
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