Manufacturing method of heat increasing and component controlling briquette used in steel manufacturing process

A manufacturing process and component control technology, applied in chemical instruments and methods, improvement of process efficiency, crystal growth, etc., can solve the problems of fire, high price, dependence on imports, etc., and achieve the effect of preventing broken

Inactive Publication Date: 2017-08-11
CLEANSOLUTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to produce the added ferrosilicon, a large amount of silicon is required, which mainly depends on imports, resulting in higher prices
Due to this, there is a problem that the overall steel manufacturing cost increases
However, since the price of silicon used as a heating agent is high, there is a problem that the overall steel manufacturing cost increases
[0013] First of all, during the drying process of recycli...

Method used

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  • Manufacturing method of heat increasing and component controlling briquette used in steel manufacturing process
  • Manufacturing method of heat increasing and component controlling briquette used in steel manufacturing process
  • Manufacturing method of heat increasing and component controlling briquette used in steel manufacturing process

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Embodiment Construction

[0072] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

[0073] figure 1 It is a diagram conceptually showing a process of purifying silicon-containing waste slurry discharged as a by-product in the process of manufacturing semiconductor or solar cell wafers.

[0074] see figure 1 First, slicing materials, silicon sawdust, slicing oil, and other materials such as slicing materials generated during slicing or fine powder of wire saws are involved in the slicing process of silicon ingots or the surface polishing process of silicon wafers.

[0075] As shown, an oil washing process is provided in order to separate silicon and chip material that may be recovered from this spent slurr...

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Abstract

There is provided a method of producing a briquette for increasing the amount of heat and the control component in the process of producing molten steel for the steel making process by purifying the silicon-containing waste slurry. The method comprises a main separation step: mixing water into an initial waste slurry comprising silicon (Si), silicon carbide (SiC), water-soluble oil and iron (Fe) at a first mixing ratio, and separating water-soluble oil and water from the initial waste slurry; a briquetting ste: adding adhesive to the Si-containing SiC slurry obtained by separating the water-soluble oil and water from the initial scrap in the main separation step, containing Si-SiC pulp, and then containing Si-SiC slurry molded into billet. The pellet constituting the initial waste slurry has a volume median diameter (Dv50) of 1 micron or more.

Description

technical field [0001] The present invention relates to a method of manufacturing heat-increasing and composition-controlled briquettes for use in the production of molten steel in iron and steel manufacturing processes, comprising purifying and briquetting spent slurry containing silicon (Si) and silicon carbide (SiC). More specifically, the present invention relates to a method of manufacturing a heat-increasing and composition-controlled briquette used in the steel manufacturing process, which is capable of purifying silicon-containing waste slurry generated during the manufacture of semiconductor or solar cell wafers, preventing fires, Oxidation of silicon is effectively suppressed, and a briquette in block form is easily molded, and the present invention relates to a method of manufacturing a heat-increased and composition-controlled briquette as a briquette raw material for producing steel. Background technique [0002] During steel manufacturing, impurities including ...

Claims

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Application Information

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IPC IPC(8): C21B3/02C21C7/06C30B35/00
CPCC21B3/02C21C7/06C30B35/00Y02P10/20C21C7/005C22B1/24C22B1/242C22B7/001C22B7/005C22B9/02
Inventor 张煐哲金炯秀
Owner CLEANSOLUTION CO LTD
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