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[1]罗惠华1,瞿定军2,苗华军2,等.宜昌低品位胶磷矿筛分分级微差密度重介质分选技术[J].武汉工程大学学报,2015,37(09):35-49.[doi:10. 3969/j. issn. 1674-2869. 2015. 09. 006]
 ,,et al.Classification-heavy medium separation in minor differential for beneficiation of low grade collophanite in Yichang[J].Journal of Wuhan Institute of Technology,2015,37(09):35-49.[doi:10. 3969/j. issn. 1674-2869. 2015. 09. 006]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年09期
页码:
35-49
栏目:
资源与土木工程
出版日期:
2015-09-30

文章信息/Info

Title:
Classification-heavy medium separation in minor differential for beneficiation of low grade collophanite in Yichang
文章编号:
1674-2869(2015)09-0035-05
作者:
罗惠华1瞿定军2苗华军2胡学超2胡 正2张战利2
1.武汉工程大学资源与土木工程学院,湖北 武汉 430074;2.湖北杉树垭矿业科技发展有限公司,湖北 宜昌443000
Author(s):
LUO Hui-hua1QU Ding-jun2MIAO Hua-jun2HU Xue-chao2HU Zheng2ZHANG Zhan-li2
School of Resource and Civil Engineering, Wuhan Institute of Technology, Wuhan 430074, China;2. Hubei Shashuya Mining Technology Development Co.Ltd. ,Yichang 443000, China
关键词:
低品位胶磷矿重介质分选
Keywords:
low grade collophaniteheavy mediumbeneficiation
分类号:
TD923
DOI:
10. 3969/j. issn. 1674-2869. 2015. 09. 006
文献标志码:
A
摘要:
为了解决低品位胶磷矿重介质选矿关键技术,根据其工艺矿物学特性,在查清矿石的矿物组成、矿物的赋存状态以及嵌布特征的基础上,研究了低品位胶磷矿筛分分级微差密度重介质可选性关键技术以及工业应用,建立一套年处理120万吨原矿的工业化生产装置,该装置集分选精度高、稳定控制分选密度,具有回收与净化介质功能,有效减少介质消耗、密度变化、矿介分离的不稳定性. 通过筛分分级微差密度重介质选矿,工业上采用无压给料三产品重介质旋流器,有效介质密度控制系统,实现了微密度差下高密度2.80~2.90 g/cm3难重选宜昌磷矿的分选,获得精矿品位五氧化二磷28.44%,尾矿品位小于10%. 与选择性破碎筛分分级相结合,回收中间产品,提高资源的回收率,综合回收率达到83% 以上.
Abstract:
To solve the common key technological problems existed in beneficiation of low grade collophanite, technical properties of phosphate ore, such as material composition, occurrence states and dissemination properties of minerals, etc. were investigated. The key separation technology and the industrial utilization of sieving and classification-heavy medium separation in minor differential for beneficiation of low grade collophanite were analyzed via self-dependent innovation and technology integration based on the research of process mineralogy. Then a series of industrial production facility of sieving and classification-heavy medium separation in minor differential with annual processing capacity of 1.2 million tons of phosphate rock was established, which was characterized by high separation accuracy, good stability in controlling the proportion of separation. This novel processing technology can recover and purify medium, and effectively decrease the consumption of medium and eliminate the instability caused by the change of density and the separation of minerals and medium. Under the condition of subtle density difference, the grade of concentrate reaches 28.44%, the grade of tailing is lower than 10% when three products dense medium cyclone with unpressurized feeding and control systems of effective medium density are applied in industry to realize the separation of Yichang phosphate with high density of 2.80 -2.90 g/cm3. Middle products can be recovered and the comprehensive recovery of the resource is improved with the rate over 83% by combining with selective crushing and screening classification.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-07-06基金项目:湖北省重大科技创新计划(2014ACA036);十二*五科技支撑项目(2013BAB07B01)作者简介:罗惠华(1968-),男,湖北武汉人,教授.研究方向:选矿理论尧工艺和浮选药剂.
更新日期/Last Update: 2015-10-19