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Grate ball mill

product description

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.

Performance characteristics

  1. The parts of the grate ball mill have high performance. The liner types are diversified and can be selected at will, and the energy-saving effect of the liner is 10%-15% higher than that of ordinary ball mills.
  2. The large and small gears of the equipment are smoothly transmitted without abnormal noise; and when the large and small gear surfaces are worn to a certain extent, they can be turned over and used continuously, which shortens the replacement period of parts and saves costs.
  3. At the same time, due to the reasonable adjustment of the gap between the parts of the grate ball mill, there is no strong vibration during work, which reduces the failure rate of the whole machine and increases the service life of the machine.

working principles

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.

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