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The grate ball mill is the key equipment for crushing the materials after they are crushed. Its effect for fine grinding is better than rough grinding. When used for fine grinding, the feeding particle size should not be greater than 65mm, and the suitable feeding particle size is below 6mm. The grate ball mills are widely used in metal and non-metal mines, building materials and other industrial sectors to grind various ores and rocks.
The grate ball mill is a horizontal cylindrical rotating device. The material enters the first bin of the mill spirally and evenly through the feeding hollow shaft from the feeding device. There is a step liner or a corrugated liner inside the bin, which contains steel balls of different specifications. The rotation of the cylinder generates centrifugal force to bring the steel balls to a certain height. After falling, it will have a heavy blow and grinding effect on the material. After the material reaches the rough grinding in the first bin, it enters the second bin through the single-layer partition board. The bin is lined with a flat liner and steel balls inside to further grind the material. The powder is discharged through the unloading grate to complete the grinding operation.