The Importance of Even Feeding to Ball Mill in Operation

Ball mill should keep even feeding in operation;  the even feeding means stable feeding quantity and same particle size  distribution.

Unsuitable feeding would make the product  size become bigger, and bring more return capacity, which cause  "bloated" phenomenon for grid type ball mill. It also means overload  of the ball mill. Under this situation, the operation voice sound dull and  weak, which means lost the grinding function. At the moment, operator should immediately  reduce or stop the feeding, and improve the overflow concentration. Feeding  again after the normal work is resumed

Inadequate feeding would make the product  size become smaller, and bring less return capacity, which cause the impact  between linear and steel ball. The extra impact will lead to consumption  increasing.

Feeding size increasing or decreasing also causes  the same results as feeding capacity when the feeding capacity is fixed.

Only even feeding and size will bring good  production indexes. We should pay attention to these two factors

The even feeding keeping mainly depends on the  constant observation of operating personnel.  The problems generally occur in the handover, so some places should be  carefully checked, including main bearings and transmission bearing; transmission  system of classifier and feeder operation; the amount of lubricating oil; situation  of grinding medium; reserves in ore bin, the mill discharge, classifier overflow  and sand return. Only checking carefully can ensure the smooth operation of the  ball mill, and reach a stable production target.

Tags:ball mill, grinding, feeding

From:Xinhai Mining Machinery Company