发明名称 |
METHOD FOR START BLOWING OF BLAST FURNACE |
摘要 |
FIELD: ferrous metallurgy, particularly blast furnace processes. SUBSTANCE: method comprises steps of loading in blast furnace blow-in charge; controlling height of arranging in furnace first batches of charge; supplying hot blowing air in mode providing operation of blast furnace during starting up period; before supplying hot blowing air through air tuyeres blowing to furnace inert gas heated until temperature no more than 1300C in such a way that 20 - 30% of blown inert gas is discharged out of blast furnace through gas discharging tubes inserted into iron taphole or through ports in hearth lining for iron tapholes; going on such processes until temperature of gas in mouth of furnace achieves 250 - 300 C; then feeding into furnace hot blowing air with parameters of start blasting process. EFFECT: increased service life period of blast furnace. 1 tbl
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申请公布号 |
RU2216597(C1) |
申请公布日期 |
2003.11.20 |
申请号 |
RU20020110633 |
申请日期 |
2002.04.19 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "NOVOLIPETSKIJ M;ETALLURGICHESKIJ KOM |
发明人 |
INOZEMTSEV N.S.;KORSHIKOV G.V.;KAPORULIN V.V.;GRIGOR'EV V.N.;JARIKOV I.S.;CHUJKOV V.V.;EMEL'JANOV V.L. |
分类号 |
C21B3/00;(IPC1-7):C21B3/00 |
主分类号 |
C21B3/00 |
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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