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Compositions for forming lumps of electric arc furnace steelmaking dust and lumps of electric arc furnace steelmaking dust

An electric arc furnace and composition technology, which are applied in the fields of compositions for forming electric arc furnace steelmaking dust blocks and electric arc furnace steelmaking dust blocks, can solve the problems of rising transportation costs and other problems, and achieve the improvement of fire risk, stabilization of supply and demand, and simplification of The effect of craftsmanship

Active Publication Date: 2020-04-21
LOTTE FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Leading to an increase in transportation volume and consequent transportation costs

Method used

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  • Compositions for forming lumps of electric arc furnace steelmaking dust and lumps of electric arc furnace steelmaking dust
  • Compositions for forming lumps of electric arc furnace steelmaking dust and lumps of electric arc furnace steelmaking dust
  • Compositions for forming lumps of electric arc furnace steelmaking dust and lumps of electric arc furnace steelmaking dust

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 9 and comparative example 1 and 2

[0053] (Preparation of compositions for forming lumps of electric arc furnace steelmaking dust)

[0054] Electric arc furnace steelmaking dust (average particle size: 0.3 μm), hydroxypropyl methylcellulose and optional molasses (KCIE CO., LTD., solid content : 77.2% by weight, total sugar content: 49.3% by weight) and the first composition was obtained. Then, distilled water was added to the first composition, thereby obtaining a composition for forming electric arc furnace steelmaking dust lumps. The contents of the components in the compositions of Examples 1 to 9 and Comparative Examples 1 and 2 are shown in Table 1.

[0055] (Manufacturing of Electric Arc Furnace Steelmaking Dust Blocks)

[0056] Using a briquetting machine (available from JEIL MACHINERY CO., LTD., JCB250T), under a load of about 205 bar, each prepared composition for forming an electric arc furnace steelmaking dust block was compression-molded to produce fifty block of electric arc furnace steelmaking ...

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Abstract

Compositions for forming electric arc furnace steelmaking dust lumps and electric arc furnace steelmaking dust lumps are disclosed. The disclosed composition for forming a block of electric arc furnace steelmaking dust includes electric arc furnace steelmaking dust and, as a binder, a cellulose ether compound having a viscosity of from about 4,000 cps to about 80,000 cps.

Description

technical field [0001] The present invention relates to a composition for forming electric arc furnace steelmaking dust agglomerates and an electric arc furnace steelmaking dust agglomerate, and more particularly, to a composition for forming an electric arc furnace steelmaking dust agglomerate containing a binder cellulose ether compound having a specific viscosity range. Compositions of electric arc furnace steelmaking dust lumps and electric arc furnace steelmaking dust lumps. Background technique [0002] The iron manufacturing process is classified into: an ironmaking process for preparing molten iron by charging iron ore and / or iron filings together with coal into a blast furnace, a steelmaking process for producing high-purity molten steel by removing impurities from molten iron, manufacturing such as solid The casting process of semi-finished products such as slabs, and the rolling process of manufacturing final steel products by processing semi-finished products suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/48
CPCC10L5/48
Inventor 金台洪崔洛运金兑轩
Owner LOTTE FINE CHEM CO LTD