某钼矿选别工艺流程优化研究
|
摘要
基于某矿山辉钼矿嵌布粒度粗、部分粗细不均等特点,对原矿进行了磨矿细度试验和闭路试验。通过分析发现,目前的选别工艺流程主要存在一段粗磨粒度偏细和尾矿2品位高、回收率损失大等问题,结合类似钼矿山生产实践,提出降低一段磨矿细度、增设中矿再磨工艺流程的优化措施。经试验验证,优化后可减少项目前期投资,有效提高钼综合回收率。
Based on the characteristics of coarse dissemination size and uneven distribution of molybdenite in a mine,the grinding fineness test and closed-circuit test were carried out.Through analysis,the main problems in the current mineral processing technology were the finer size of coarse grinding of first stage,and the high grade and the great loss of recovery rate in 2~# tailings.Combining with the production practice of similar molybdenum mines,the optimization measures for reducing the grinding fineness of first stage and adding the process of middling regrinding were proposed.The experimental results showed that prophase investment of the project could be reduced and the comprehensive recovery rate of molybdenum could be improved effectively after optimization.
Based on the characteristics of coarse dissemination size and uneven distribution of molybdenite in a mine,the grinding fineness test and closed-circuit test were carried out.Through analysis,the main problems in the current mineral processing technology were the finer size of coarse grinding of first stage,and the high grade and the great loss of recovery rate in 2~# tailings.Combining with the production practice of similar molybdenum mines,the optimization measures for reducing the grinding fineness of first stage and adding the process of middling regrinding were proposed.The experimental results showed that prophase investment of the project could be reduced and the comprehensive recovery rate of molybdenum could be improved effectively after optimization.
引文
[1]戴相如(译).钼[M].北京:地质出版社,1958.
[2]林春元,程秀检.钼矿选矿与深加工[M].北京:冶金工业出版社,1996.
[3]栾川钼业公司.国外钼选矿厂技术档案[M].北京:原子能出.版社,1988.
[4]贾红秀,高丽梅,姜威.钼市场30年回顾与展望[J].中国钼业,2006(1):42-47.
[5]李凤,宋永胜,李文娟,等.国外某钼矿选矿试验研究[J].稀有金属,2014(3):487-493.
[3]许洁瑜,杨刘晓,王俊龙.中国钼资源利用与可持续发展战略研究[J].中国钼业,2005(4):3-9.
[4]张文征,徐秋生.我国钼资源开发现状与发展趋势[J].矿业快报,2006(9):1-4.
[5]戴新宇,周少珍.我国钼矿石资源特点及其选矿技术进展[J].矿产综合利用,2010(6):28-32.
[6]李琳,吕宪俊,栗鹏.钼矿选矿工艺发展现状[J].中国矿业,2012(2):99-103,107.
[7]查贵嵩,夏珠荣,于文涌,等.中国有色金属选矿厂概览[M].北京:中国有色金属工业总公司,1990.
[2]林春元,程秀检.钼矿选矿与深加工[M].北京:冶金工业出版社,1996.
[3]栾川钼业公司.国外钼选矿厂技术档案[M].北京:原子能出.版社,1988.
[4]贾红秀,高丽梅,姜威.钼市场30年回顾与展望[J].中国钼业,2006(1):42-47.
[5]李凤,宋永胜,李文娟,等.国外某钼矿选矿试验研究[J].稀有金属,2014(3):487-493.
[3]许洁瑜,杨刘晓,王俊龙.中国钼资源利用与可持续发展战略研究[J].中国钼业,2005(4):3-9.
[4]张文征,徐秋生.我国钼资源开发现状与发展趋势[J].矿业快报,2006(9):1-4.
[5]戴新宇,周少珍.我国钼矿石资源特点及其选矿技术进展[J].矿产综合利用,2010(6):28-32.
[6]李琳,吕宪俊,栗鹏.钼矿选矿工艺发展现状[J].中国矿业,2012(2):99-103,107.
[7]查贵嵩,夏珠荣,于文涌,等.中国有色金属选矿厂概览[M].北京:中国有色金属工业总公司,1990.