Stainless Steel 10-75 HP Pin Mill Grinding Machine
The material to milled is led out of the feed hopper by a mechanical feed dosing device into the feed inlet or suction spout of the mill. The rate of feed needs to be controlled for ensuring a uniform trickle feed so that uniform milled product is obtained without blocking or overloading the mill. Suitable controls are provided with the mill.
In the feed inlet of the mill a strong permanent magnet can be provided to catch hold of any ferrous tramp matter. The feed material mixed with a quantity of air aspirated by the running of the mill rotor, enters the milling chamber near the central axis of the rotor. The material is hurled vigorously outwards toward the periphery of the rotor by centrifugal force and progressively reduced in size by the milling rotor till it reaches the circumferential sieve ring. After passing the sieve ring the milled powder has to be separated from the accompanying air.
The degree of fineness achieved will depend on the nature of product, type rotor and the sieve ring fitted. It is also influenced by rate of feed, the quantity of air sucked into the mill with the feed and the peripheral speed of the rotor.