发明名称 |
MEDIUM SOLVENT OF ELECTRIC FURNACE AND DEGUMMING METHOD IN ELECTRIC FURNACE BY USING MEDIUM SOLVENT |
摘要 |
<p>PURPOSE: A medium solvent and a tempering method in an electric furnace by using the medium solvent are provided to minimize the generation of HF gas which is a pollutant of environment by recycling residual product of a steel mill and to offer a property the same as or greater than the property of a general fluorite medium solvent. CONSTITUTION: A medium solvent for an electric furnace is composed of 20-30wt% of sintered dust, 10-15wt% of mill scale and remnant sludge in an electric furnace. More than 40wt% of total content of iron is contained in the sintered dust, the mill scale and the electric furnace sludge respectively. A tempering in an electric furnace is performed by inputting the prepared medium solvent to the molten steel in the electric furnace 5-8kg per 1 ton of molten steel.</p> |
申请公布号 |
KR20000051771(A) |
申请公布日期 |
2000.08.16 |
申请号 |
KR19990002388 |
申请日期 |
1999.01.26 |
申请人 |
POHANG IRON & STEEL CO., LTD. |
发明人 |
GEUM, CHANG HUN;JEONG, TAE JEONG |
分类号 |
C21C7/076;C21C5/28;(IPC1-7):C21C7/076 |
主分类号 |
C21C7/076 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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