矿产保护与利用Issue(6)：26-30,36,6.DOI:10.13779/j.cnki.issn1001-0076.2016.06.006
镜铁矿粉矿制粒回转窑磁化焙烧及分选研究
Study on Granulation Magnetic Roasting with Rotary Kiln and Separation of Fine Specularite
屈万刚 1陈铁军 1张一敏1
作者信息
- 1. 武汉科技大学资源与环境工程学院，湖北武汉430081
- 折叠
摘要
Abstract
The lean specularite from Jiuquan in Gansu is difficult to be separated .Magnetic roast-ing with rotary kiln is an effective way to process this type of ore , in which fine specularite need to be ground and pelleted .In order to utilize fine specularite , granulation-rotary kiln magnetic roast-ing-magnetic separation process based on its properties was adopted .Small pellets with a diameter of 3~8 mm were prepared with 1%bentonite and 8%water.Then the pellets were roasted at 750℃for 60 min, during which the dosage of carbon was 2.5% and the filling rate was 20%.The roasted ore, ground to -0.074 mm which accounted for 85%, was couducted with a magnetic sep-aration process of one roughing , one scavenging , one screening and one concentration .Finally, i-ron concentrate with grade of 56 .16%and recovery of 85 .24%was obtained .This study provided some reference for utilization of fine specularite .关键词
镜铁矿/制粒/回转窑/磁化焙烧/磁选Key words
specularite/granulation/rotary kiln/magnetic roasting/magnetic separation分类
矿业与冶金引用本文复制引用
屈万刚,陈铁军,张一敏..镜铁矿粉矿制粒回转窑磁化焙烧及分选研究[J].矿产保护与利用,2016,(6):26-30,36,6.
