攀西钒钛磁铁矿高压辊磨粉碎试验  

Crushing Test of V-Ti magnetite from Panxi by High Pressure Grinding Roller

作　　者：郭小飞[1] 袁致涛[1] 严洋 韩跃新[1] 

机构地区：[1]东北大学 [2]成都利君实业股份有限公司

出　　处：《金属矿山》2011年第5期85-88,共4页Metal Mine

基　　金：中央高校基本科研业务费项目(编号:N100401007)

摘　　要：使用高压辊磨机对攀西钒钛磁铁矿进行了粉碎试验,主要包括辊面压力、辊面速度和矿石含水量对辊压中料粒度特性的影响。在辊面压力5.6 N/mm2、辊面速度0.195 m/s、矿石含水量小于7%的条件下,当入料粒度P80为15.5 mm时,辊压中料基本全部通过-5 mm筛孔,-3.2 mm产率为91.05%,-0.074 mm产率为15.29%,P80降低至1.55 mm,破碎比达到10。同时对不同的边料及闭路循环工艺对粉碎物料粒度特性的影响进行了试验。Crushing tests including size characteristics of centre product influenced by the pressure and speed of the roller and the moisture content of the ore of V-Ti magnetite in Panxi area were conducted using high pressure grinding roller.The centre product can almost pass sieve mesh of 5mm under the condition of that the pressure of the roller is 5.6 N/mm2,the speed of the roller is 0.195 m/s and the moisture content of the ore is less than 7%,the productivity of-3.2 mm of which is 91.05%,and the productivity of-0.074 mm of which is 15.29%.The P80 of the centre product is reduced to 1.55mm and the ratio of reduction is up to 10.Tests of size characteristics influenced by technology of different circulation of edge product and the closed-cycling were also performed.

关 键 词：攀西钒钛磁铁矿 高压辊磨机 粒度特性 

分 类 号：TD951.1[矿业工程—选矿]