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Heat generating agent for converter steelmaking and production method thereof

A converter steelmaking and exothermic agent technology, applied in the field of metallurgy, can solve the problems of environmental pollution, high impurity content, and inability to apply high-quality steel, etc., and achieve the effect of excellent heating effect and increased specific gravity

Inactive Publication Date: 2018-06-15
上海盛宝冶金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, AD powder is mainly used in deoxidation, desulfurization and other links in the iron and steel smelting process, but because of its high impurity content, it cannot be used in high-quality steel, resulting in a considerable part of AD powder being directly buried or simply piled up for treatment, resulting in Certain environmental pollution problems

Method used

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  • Heat generating agent for converter steelmaking and production method thereof
  • Heat generating agent for converter steelmaking and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The heat generating agent for the converter steelmaking includes industrial silicon powder, AD powder, iron oxide raw material, binding agent, additive, and its percentage by weight is: industrial silicon powder 40%; AD powder 37%; iron oxide 20%; CMC binder 1%, silicon carbide 1%, metal aluminum powder 1%.

Embodiment 2

[0026] The heat generating agent for the converter steelmaking includes industrial silicon powder, AD powder, iron oxide raw material, binding agent, additive, and its percentage by weight is: industrial silicon powder 45%; AD powder 32%; iron oxide 20%; CMC binder 3%.

Embodiment 3

[0028] The heat generating agent for converter steelmaking includes industrial silicon powder, AD powder, iron oxide raw material, binder, and additives, and its weight percentage is: industrial silicon powder 50%; AD powder 27%; iron oxide 20%; CMC Binder 0.5%, water glass 0.2%, cement 0.2%, starch 0.1%, caustic soda 0.1%, 801 glue 0.1%, yellow dextrin 0.1%, silicon carbide 0.5%, metal aluminum powder 0.5%, ferrosilicon powder 0.5% %, graphite 0.2%.

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Abstract

The invention discloses a heat generating agent for converter steelmaking. The heat generating agent comprises, by weight, 40-60% of industrial silica powder, 20-40% of AD powder, 10-30% of iron oxideraw materials, and the balance binding agents and additives. The main raw materials of the heat generating agent are waste having great impact on the environment and produced in industrial production. The raw materials are subjected to reasonable matching and are pressed into balls, then the heating effect is better than that of an existing equivalent heating agent, and a method for comprehensiveutilizing of the waste resources is found.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a heat generating agent for converter steelmaking and a production method thereof. Industrial silicon powder and iron oxide raw materials are pressed into balls to provide heat during the converter steelmaking process. Background technique [0002] With the development of my country's steelmaking industry and the increasing shortage of international iron ore resources, the use of scrap steel in the steelmaking process continues to increase. However, in converter and electric furnace smelting, the increase of scrap steel ratio will inevitably lead to insufficient heat in the furnace in the early stage of smelting, slow slag formation, and poor fluidity of primary slag, which will bring inconvenience to production. In order to solve this problem, steel mills generally add different exothermic agents to the furnace at the initial stage of smelting according to smelting requiremen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/28C09K5/18
CPCC21C5/28C09K5/18
Inventor 刘欣隆孙树森聂爱军
Owner 上海盛宝冶金科技有限公司
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