third ball mill commissioned at paracatu mine e mj
calculations on mass balance on ball mill circuit. Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits. According to the need of customers, ball mill can be either wet or dry designs.. Ball Mill. . Run-of-mine ore is crushed and sent to blending bins, which feed the grinding circuit of single stage ball mills. Ball mills are in closed circuit with hydrocyclones. A portion of the circulating load passes through jigs for gravimetric recovery of gold (Figure 16).