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Ladle slag conglomeration agent prepared by boric sludge

A slag-aggregating agent and molten iron ladle technology, which is applied in the field of iron and steel metallurgy, can solve the problems of many times of sulfur-returning and slag-skimming, poor slag-aggregation effect, and low slag-skimming efficiency, etc., and achieve significant social and economic benefits and improve slag-skimming efficiency. , the effect of reducing the number of slag removal

Active Publication Date: 2015-08-05
江阴智产汇知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is: to invent a kind of slag gathering agent in molten iron prepared by using waste boron mud to solve the problems of poor slag gathering effect, low slag removal efficiency, many times of molten iron resulfurization and slag removal, etc. Solve the problems of large iron loss during slag removal, and realize the reuse of waste boron mud at the same time, reducing the production cost of slag removal agent

Method used

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Embodiment

[0038] The slag-removing and slag-gathering agent of the present invention is prepared by using quicklime-magnesium mixed spraying desulfurized iron slag for the pretreatment of molten iron by powder spraying and desulfurization. The raw material composition (weight fraction) of the slag-gathering agent is as follows:

[0039] Boron mud 57%, silica 35%, corundum powder 8%.

[0040] All raw materials are dried, milled, batched, mixed and granulated to obtain finished products, specifically: all raw materials are dried and ground to pass through a 40-mesh sieve, and then the ingredients are weighed according to the above weight percentage, passed through the mechanical After stirring and mixing, it is sprayed and granulated in the drum, and the particle size of the finished product is 1-3 mm, and then dried and packed in a moisture-proof package to obtain the finished product.

[0041] The product of the present invention is used when removing slag from a 100-ton ladle, and the ...

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Abstract

The invention relates to the technical field of ferrous metallurgy, in particular to a ladle slag conglomeration agent prepared by boric sludge. The slag conglomeration agent is made of raw materials including, in weight percent, 50%-65% of boric sludge, 30%-40% of silica and 5%-10% of emery powder. A preparation method of the slag conglomeration agent mainly includes the steps of grinding, distributing, blending and pelleting. The ladle slag conglomeration agent is added into a ladle slag layer before slag removal and after powder injection desulfurization pretreatment is performed in a ladle, the agglomeration performance of desulfurization slag can be effectively improved, slag collection and slag removal efficiency is increased, slag removal frequency is decreased, slag removal time is shortened, slag removal iron loss can be reduced, molten iron backflow is decreased, desulfurization effects are ensured, and the ladle slag conglomeration agent has remarkable economic and social benefits and is worthy of popularization.

Description

Technical field [0001] The present invention involves the field of steel metallurgy technology, and specially involves a boron mud prepared iron dregs. Background technique [0002] Most of my country's boron ore has a low grade. After extracting borax with carbonate method, a large amount of waste boron mud is generated. Due to the complexity of the boron mud treatment process, it has always been used as a residue accumulation. Water resources are severely polluting, and the comprehensive use of boron mud needs to be resolved. [0003] In the field of steel metallurgy, iron water spraying desulfurization treatment has been promoted nationwide; in the iron water bag, iron water desulfurization is mainly blowing CAO, MG grain or CAO+MG.The sulfur -containing residue needs to be picked out, but because the iron residue after desulfurization is difficult to gather into a group block, resulting in low efficiency and long time of chopping slag, resulting in a certain degree of iron re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/076C21C7/064
CPCY02P10/20
Inventor 王宏明李桂荣李杨
Owner 江阴智产汇知识产权运营有限公司
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