Pulverizer grinder

Description

â…£.Structure & Working principle
It’s a vertical shaft reflection pulverizer. It is composed of block, frame, grinding unit, classify unit, discharging system, transmission unit and motor.
The schematic diagram below is internal structure. (Pic 1)
Matching equipments are composed of host machine, dust collector, high pressure centrifugal fan, airlock, cyclone material collector, electric cabinet, etc.
  The intracavity of block is cylindrical; it was separated to two parts by a annular plate. The latter half is inlet chamber. The first half is separated to grinding chamber and classify chamber. The grinding chamber is composed of grinding disk and liner, to pounding martial to powder. The classify chamber is composed of classify impeller, to separate powder to “reach the mark” and not reach the mark. Discharging pipe will aspirate the “reach the mark” powder. “Not reach the mark” powder will go back to grinding chamber through shunting ring to continue to grinding until it is “reach the mark”.
  Grinding disk and classify impeller are both driven by 2 shafts. The speed of classify impeller can be regulated to get different fineness powder. The feeding screw is installed beside the block to feed material into grinding chamber, the speed is also can be regulated to match different material amount.
After separated by cyclone separating device, dusty air goes into dust collector, because of the air volume expand suddenly, and the speed drop suddenly, bigger dust drop from dust air to lower cabinet because of its weight. Other dust was out of the filter bags because of such as filter bags’ electrostatic, collision, etc. Purifying air was discharged from dischargement. When the dust out of the filter bags is more and more, the resistance of dust collector is larger and larger. To control the resistance of dust collector is in some range, pulse controller send signal to turn on solenoid valve to jet compressed air to corresponding venturi tube (the 1st wind), the venturi tube lead several-fold air (the 2nd air) into filter bags to make the filter bags expand suddenly. Because the impact action disappear rapidly, the filter bags shrink rapidly. Above all, expand and shrink are the point to clean the dust cover the filter bags, dropped dust discharge to make the filter bags clean.   
â…¤.Main technical data