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Low-cost heating agent for converter and production method

A production method and technology of exothermic agent, which are applied in the field of iron and steel metallurgy, can solve the problem of not developing a recovery technology with better economic benefits and environmental protection benefits, and achieve the effects of excellent heating effect, low cost and excellent heating effect.

Inactive Publication Date: 2020-09-08
MAANSHAN XINGDA METALLURGICAL NEW MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A lot of research has been done on the recycling of industrial silicon powder in China, but no recycling technology with better economic and environmental benefits has been developed.

Method used

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  • Low-cost heating agent for converter and production method

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Effect test

Embodiment 1

[0042] A low-cost heating agent for converter steelmaking, including industrial silicon powder, AD powder, binder, and additives. The percentage by weight is: 65% of industrial silicon powder; 25% of AD powder; 3% of binder; 7% of silicon carbide.

Embodiment 2

[0044] A low-cost heating agent for converter steelmaking, including industrial silicon powder, AD powder, binder, and additives. The weight percent is: industrial silicon powder 75%; AD powder 15%; binder 2%; silicon carbide 8%.

Embodiment 3

[0046] A low-cost heating agent for converter steelmaking includes industrial silicon powder, AD powder, binder and additives. Its weight percent is: industrial silicon powder 80%; AD powder 17%; binder 3%.

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Abstract

The invention discloses a low-cost heating agent for a converter and a production method, and belongs to the field of ferrous metallurgy. The heating agent comprises the following components of, in percentage by weight, 60%-80% of industrial silicon powder, 20%-40% of AD powder, and the balance a binder and an additive, wherein the industrial silicon powder is waste generated in the photovoltaic industry and poorly recycled, and the AD powder is waste generated in the aluminum smelting production process; metallic silicon in the industrial silicon powder is used as a substance with a high heating value, the raw material of the AD powder increases the heating value and also provides a part of oxygen source needed during oxidation of the metallic silicon, and after the raw material is subjected to reasonable proportioning and ball pressing, the heating effect of the low-cost heating agent is better than that of existing similar heating agents, and a waste resource comprehensive utilization method is found; and when the low-cost heating agent for the converter is used, compared with an original siliceous heating agent and under the condition that the adding amount is the same, the temperature rising effect is better than that of the original heating agent, and the cost is obviously lower than that of the original siliceous heating agent.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to a low-cost exothermic agent for a converter and a production method. Background technique [0002] With the rapid development of my country's iron and steel industry, domestic iron ore resources are becoming increasingly tight. Iron ore needs to be imported in large quantities and the price continues to rise. The production cost of molten iron is also increasing. Therefore, it is imminent to reduce the ratio of molten iron and increase the ratio of scrap steel in the steelmaking process. . However, increasing the scrap ratio will lead to insufficient heat in the converter. To solve this problem, oxygen blowing or heating agent is usually used to raise the temperature of molten steel. The use of oxygen blowing is not conducive to the consumption of steel materials, alloy consumption and molten steel quality. Generally, the method of adding heating agent is used t...

Claims

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Application Information

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IPC IPC(8): C21C7/00C21C5/28
CPCC21C7/005C21C5/28
Inventor 李国安丁传友
Owner MAANSHAN XINGDA METALLURGICAL NEW MATERIAL
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