鲕状赤铁矿深度还原过程中铁粒生长特征的研究.doc

文档介绍：Series

金

氍

矽

山

总第412期
October
20IO
METAL MINE
2010年第10期
鲕状赤铁矿深度还原过程中铁粒生长特征研究
贾

岩1

倪

文1

郑

斐2

封金鹏1

王中杰1

徐承焱1
(;)
摘要针对国内某种难选鲡状赤铁矿的特点,进行了深度还原试验,对其深度还原过程中铁粒的生长特征
进行了研究,探讨了还原温度、还原时间、二元碱度等不同试验因素对焙烧产物中铁粒的聚集、兼并和长大的影响。
研究结果表明,提高还原温度和延长还原时问有利于铁颗粒的聚集和长大,过高的二元碱度不利于铁颗粒的兼并
和生长。
关键词鲕状赤铁矿炼铁深度还原铁粒
The Growth Characteristics of

Metallic

Iron Grains in Depth Reduction of Oofific Hematite
Jia Yanl

Ni Wenl

Zheng Fei2

Feng Jinpen91

Wang Zhongjiel

Xu Chengyanl
( ofScience
and Technology
Belling;
Textile Indmt,y Engineering
Institute)
Abstract
Based

the characteristics of 80me unwieldy oolitic hematite



depth reduction-ic sep-
aration
carried
The growth characteristics of metallic iron gains in depth reduction of unwieldy
oolitic hematite a托
the effects of different experimental conditions,such
reduction
temperature,reduction time,binary
ba-
sicity
the iron
grains growth a陀discussed in

results show that raising the reduction
temperature and prolon—
gins the reduction time
beneficial
the iron
smins the over—high binary basicity is bad for the iron grain
growth.
Keywords
Oohtic hematite,Iron-smelting,Depth reduction,Iron grains
鲕状赤铁矿由于其独特的矿物结构特点…,采
用常规选别方法(国内主要进