毕业设计（论文）-内蒙古黄岗矿业150万吨年选矿厂设计.doc

摘要
内蒙古黄岗矿业公司I区选矿厂年处理量为150万吨原矿,给矿粒度为500~0mm,选厂设计为一次性平地建厂。
黄岗铁矿属于中硬度矿石,含泥量小,设计采用三段一闭路破碎流程;矿床中有磁铁矿和锡矿等29种可利用元素。磁铁矿的粒度不均匀且较粗,~,所以设计采用阶段磨矿,阶段磁选工艺;第一段分级设计采用水力旋流器,第二段分级设计采用高频细筛。%。矿石经第一段磨矿分级后,分级溢流进入第一段磁选,%,%,%;粗选产品经过细筛和浓磁后进入第二段磨矿,细筛的筛下产品进入第二段磁选,%,%,%;此时大量的尾矿被甩出,然后第二段磁选产品再进入第三段磁选,磁选产品品位为66%,%,%;精矿经浓磁过滤,%。
关键词:选矿磁选精矿品位阶段选别
Abstract
I Huanggang Mining District in Inner Mongolia concentrator with capacity of million tons ore to the mine size is 500 ~ 0mm, designed as a one-time flat concentrator plant.
Huang Gang hardness of iron ore are in, with a small amount of clay, designed with three sections of a closed-circuit crushing process; deposits in ite and tin and other 29 kinds of available and coarse grain size of ite is about ~ , so the design uses stage grinding, ic separation stage process; first paragraph of the hierarchical design using hydrocyclone, and the second design using high gradeFrequency fine grade of %.The first paragraph of ore grinding and classification, the classification of overflow into the first paragraph of the ic separation, ic separation product grade of %, the yield was %, recovery was %; crude product through a fine sieve and selected ic concentration afterinto the second paragraph of the grinding, fine sieve of the sieve into the second paragraph of the ic separation of product, product grade of %, recovery was %, the yield was %; at this time a large number of tailings were thrown, then the firstErduan ic products re-entering the third paragraph of the ic separation, ic separation product grade of 66%, recovery was %, the yield was %; concentrate upon concentrated ic filter, water content of less than %.
Key words: Mineral ic concentrate grade stage sorting
摘要 I
Abstract II
内蒙古黄岗矿业公司I区选矿厂 1
第一章选矿厂概述 1
1
资源概况 1
I区设计及建设概况 1
矿