What is the problem of blockage in high pressure pulverizer?

High pressure pulverizer in the use of the process, due to improper use and other reasons, there will be some failures, affecting the mill's production efficiency, which is one of the plugging, how to solve it? 1. Over-cutting, due to uneven feeding, or excessive feeding, exceeding the height of the air duct grid, both resulting in blocking grinding. 2. The fan door opens too small, the quarry approval supervision problems and countermeasures, the fan door directly control the air volume, the air volume is too small, high pressure pulverizer grinding materials will accumulate for a long time, will not cause a blockage, but a long time will cause blockage. 3. Fan reversal, due to the reversal of fan steering, resulting in no air volume, has been grinding, materials can not be blown away, has been accumulated in the grinding bin, resulting in blockage of the air duct. 4. High-pressure mill grinding roller wear is too serious, grinding capacity declines, stone breaker, if still in accordance with the original cutting speed, a long time will cause blocking grinding, stone breaker. 5. Scraper wear, can not be sent to the material between the roller and grinding ring, material can not be grinded, the fan can not blow away the material, resulting in blocking grinding.