Chinese most trusted mill manufacturers -- Henan province Zhengzhou City Zheng ore mining machinery Limited Company mill ball size with different goals: ball mill load ratio of ball diameter distribution, meaning there are two aspects, one has to determine which of several loaded diameter ball, two is to determine the various diameter ball for the amount of large scale, its actual mass is a number. Theoretically, in order to get a good grinding effect, should ensure that the grinding machine ball quality proportion and grinding particle size composition is adapted to. Our production site of ball mill is equipped with many different sizes of ball to deal with different particle sizes of the mixed material. For the new plant, due to the lack of actual data, a reference to similar ore dressing plant actual added ball proportion, the production process to make appropriate adjustment. Grid plate in the ball mill is the important role: grid plate is a lattice type grinding machine special parts, it with the centre panel, a lining board with the composition of ore discharge lattice. Its main function:1) achieve mill forced discharge ( low levels of discharge ), aggregate turnover is rapid, grind too light, helps to improve the grinding mill capacity.