Application of High Pressure Grinding Roll in Grinding Process of Copper Smelting Slag
High pressure grinding roll(HPGR)was used to comminute a copper smelting slag.An open-circuit test,edge-product cycling test and closed-circuit ball mill test were carried out using HPGR.The particle size of various products were measured,and the grinding results after HPGR were compared with those obtained after jaw crushing.The results show that after copper smelting slag is processed using HPGR and ball mill,the fine particle fraction of the products increases obviously,and the grindability increases by about 36 percentage point.It can be concluded that HPGR approach favors upgrading of grinding efficiency and beneficiation index in processing copper smelting slag.
high pressure grinding roll(HPGR)copper smelting slagparticle sizegrindabilitygrinding
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