The motion of the charge, that is the grinding media and the material undergoing grinding, within a mill is of considerable theoretical interest and practical importance, and for these reasons, has been the subject of considerable study by a number of workers, but, even so, no rigid and complete theory, covering all the aspects of the dynamics of the mill charge, has yet been produced.
Bauxite. Lead Zinc. Rock phosphate. Metal slag. Coal. There is no standard solution for mineral industry and wear rate of grinding media varies from mine to mine, ore to ore and even for the same ore time to time. Different alloys are recommended depending on ore type and mill particulars in order to arrive at the most cost economic solution.
Reducing the ball charge will reduce the grinding capacity, and the comment on installing a grate discharge is a good one as it will let ore out sooner, thus minimizing overgrinding, which will occur if the mill is too big, or one chamber is too big in a multi chamber mill.
Steel ball grinding media are used in tower mills, Isa mill, rotary mills, semi autogenous grinding mill. Plastic Grinding Media. Plastic ball mills are made from high quality and special resin. Plastic ball mills can be used as a substitute for metallic ball mill in low load bearings and they are cost effective.
iron ore ball mill grinding media calculation. Dec 12, 2016 Ball Mill Power Calculation Example A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size Mar 26, 2021 Iron Ore Ballmill Grinding Media Calculation.
mill grinding rate over the materials grindability as measured in the lab. Mill percent solids optimization has thusly been achieved . For media sizing, maximizing the mill grinding rate on a given ore is equivalent to maximizing the mill grinding efficiency. Ores of different grindability will be part of the discussion.