01-12-2010 дата публикации
Номер: CN0101899572A
Автор:
WEI JIAJUN,
LU HUIMIN,
FANG JINGFANG,
XU LUMING,
XIE JIANYI,
TANG YUNPING,
ZHANG YONG,
CHEN JIAXING,
JIAJUN WEI,
HUIMIN LU,
JINGFANG FANG,
LUMING XU,
JIANYI XIE,
YUNPING TANG,
YONG ZHANG,
JIAXING CHEN
Принадлежит:
The invention relates to a method for preparing a ferro-silico-aluminum alloy from an andalusite raw ore, and belongs to the preparation of alloy raw materials for steelmaking. The method for preparing the ferro-silico-aluminum alloy from the andalusite raw ore is mainly characterized by comprising the following steps of: a, preparing ores, namely preparing 80 to 100 weight percent of andalusite raw ore with granularity of 50 to 150mm, and 0 to 20 weight percent of iron ore with granularity of 15 to 25mm; b, preparing a carbonaceous reducing agent, wherein the carbonaceous reducing agent is added in an amount which is 60 to 110 percent based on the total weight of the mixed ores and has the granularity of 10 to 20mm; c, uniformly mixing the carbonaceous reducing agent and the ores; d, adding the mixed materials into an ore-bearing electric arc furnace, controlling the temperature in the furnace within the range of between 1,950 and 2,150 DEG C, and smelting the materials in the furnace ...
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