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Heat generating agent for steel making and production method thereof

A technology of exothermic agents and additives, applied in the field of metallurgy, can solve problems such as environmental pollution, no recycling technology has been developed, and achieve the effect of excellent heating effect.

Inactive Publication Date: 2012-07-04
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, the photovoltaic cutting waste has caused serious environmental pollution problems. A lot of research work has been carried out on the comprehensive recycling of photovoltaic cutting waste at home and abroad, but no recycling technology with huge economic and environmental benefits has been developed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: 15% of photovoltaic cutting waste, 81% of industrial silicon carbide, and 4% of binder are stirred and mixed, and the balls are pressed and dried by a high-pressure double-roller ball pressing machine. In a steel plant, the 150-ton converter is used as a heating agent, and 1 ton is used to replace the use of ferrosilicon, which avoids or reduces the use of ferrosilicon, and can save 907 degrees of electricity;

Embodiment 2

[0018] Embodiment 2: After mixing 25% of photovoltaic cutting waste, 71% of industrial silicon carbide, and 4% of binder, the balls are pressed and dried by a high-pressure double-roller ball pressing machine. In a steel plant, the 150-ton converter is used as a heating agent, and 1 ton is used to replace the use of ferrosilicon, which avoids or reduces the use of ferrosilicon, and can save electricity by 1512 degrees;

Embodiment 3

[0019] Embodiment 3: 35% of photovoltaic cutting waste, 61% of industrial silicon carbide, and 4% of binder are stirred and mixed, and the balls are pressed and dried by a high-pressure double-roller ball pressing machine. In a steel plant, the 150-ton converter is used as a heating agent, and 1 ton is used to replace the use of ferrosilicon, which avoids or reduces the use of ferrosilicon, and can save 2117 degrees of electricity;

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Abstract

The invention belongs to the technical field of metallurgy, and particularly relates to a heat generating agent for steel making and a production method thereof. Photovoltaic cuttings and silicon carbide are pressed into balls. The heat generating agent for steel making is prepared by mixing photovoltaic cuttings and industrial silicon carbide and pressing the mixture into balls; and the heat generating agent is added in the converter and electric furnace smelting earlier stage to provide heat, accelerate slagging and optimize the smelting technique. The composition of the heat generating agent ensures the heating effect, and the raw materials have obvious environmental protection effect.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a heat generating agent for steelmaking and a production method thereof, in which photovoltaic cutting waste and silicon carbide are pressed into balls. 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 requirements. Such exothermic agents are generally high-grade fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/00
Inventor 刘欣隆孙树森周四明聂爱军
Owner 上海盛宝冶金科技有限公司
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