How to Minimize Energy Use in Jet Mill Operations ？
Jet mills are known for their ability to grind materials without producing contamination. After grinding, the high-speed compressed airflow slows down and increases in volume.
MQP disc jet mill, also known as spiral jet mill, the basic principle is: use the negative pressure generated by compressed air to suck the material in the hopper into the flat grinding chamber; The high-speed airflow (sonic speed or even supersonic speed) collides and crushes each other, and the materials that reach a certain particle size will approach the center of the grinding chamber due to the reduction of centripetal force, and will be discharged from the grinding chamber with the flow of airflow, and then enter the cyclone and dust collector.
Compressed gas is used to pass the feeder ejector to bring the ground raw materials into the grinding chamber, and driven by the high-speed airflow from multiple nozzles, it is sprayed on the grinding wall in a tangential manner to achieve the effect of friction grinding. By adjusting the longitudinal depth of the grinding chamber, adjusting the grinding pressure or feeding speed, the fineness of grinding can be controlled. Compared with the fluidized bed jet mill, the controllability of the pulverization fineness is less.
| parameter/ Model | MQP01 | MQP02 | MQP03 | MQP06 | MQW10 | MQW15 | MQW20 | MQW30 | MQW40 | MQW60 |
|---|---|---|---|---|---|---|---|---|---|---|
| Feeding Size（mm） | < 2 | <2 | <5 | <2 | <3 | <3 | <3 | <3 | <5 | <5 |
| Particle size（D97:μm） | 8~150 | 8~150 | 8~150 | 8~150 | 8~150 | 8~150 | 10~150 | 10~150 | 10~150 | 10~150 |
| Production Capacity（kg/h) | 5~15 | 5~100 | 10~200 | 20~400 | 50~800 | 150~1500 | 300~2000 | 150~1500 | 300~2000 | |
| Air consumption（m³/min） | 1 | 2.5 | 3 | 6 | 10 | 15 | 20 | 30 | 40 | 60 |
| Air pressure（Mpa） | 0.7~0.85 | 0.7~0.85 | 0.7~0.85 | 0.7~0.85 | 0.7~0.85 | 0.7~0.85 | 0.7~0.85 | 0.7~0.85 | 0.7~0.85 | 0.7~0.85 |
| Installed power （kw） | 7.5 | 15~20 | 26~37 | 30~37 | 65~85 | 85~100 | 120~142 | 175~200 | 276~310 | 402~427 |
Note: The production capacity is closely related to the particle size, specific gravity, hardness, moisture and other indicators of the raw materials. The above is only for selection reference.
Jet mills are known for their ability to grind materials without producing contamination. After grinding, the high-speed compressed airflow slows down and increases in volume.
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