Ball mill is the key equipment go for grinding materials after crushing. It is mainly used for the crushing of hard materials, like iron ore, copper ore. Ball mill is featured in high crushing efficiency, uniform crushing particle size, and wide application. Because of the strong hardness of the materials, ball mill is easy to wear, and the power consumption is high. The worn of liner plate is the main wearing parts of ball mill. How to solve the problem of liner plate abrasion to enhance the production capacity of ball mill?
(1) Choose the appropriate steel ball and liner plate. The hardness ration between liner plate and steel ball should be controlled during 0.85-0.9.And the steel ball hardness should be 1.7 times than the grinded coal.
(2) When the machine is running with low load, we should adjust the feeding quantity of coal according to the actual situation.
(3) The wedge orifice for fixing and fastening should be designed into circular arc to avoid concentrate stress.
(4) Strictly control the coal quality. Reduce the gangue content can effectively enhance the coal’s grind ability coefficient.
(5) For the new liner plate, firstly uses low hardness steel ball to operate 1-2 month, after the hardness and toughness of liner plate are improved, using high hardness steel ball to prolong the liner plate service life.
(6) Timely eliminate the machine faults to prevent enlarging the damaged scope so as to ensure the machine unit safety operation.