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Horizontal Fluidized Bed Jet Mill - MQW

MQW jet mill is a Fluidised Bed Opposed Jet Mill, with built-in horizontal classifying wheels (single wheel or multiple wheels). After the compressed air is filtered and dried, it is sprayed into the grinding chamber through the Laval nozzle at high speed. At the intersection of multiple high-pressure airflows, the materials are repeatedly collided, rubbed, and sheared to be crushed. The ground materials rise with the suction force of the fan. The airflow moves to the classifying area, under the strong centrifugal force generated by the high-speed rotating classifying turbine, the coarse and fine materials are separated, the fine particles that meet the particle size requirements enter the cyclone separator and dust collector through the classifying wheel, and the coarse particles descend to the grinding area to continue grinding.

Product features

  • The grinding process is completed by the collision of the material itself, completely self-grinding, with minimal wear on the equipment, suitable forgrinding of various hardness materials.
  • The grinding form of fluidized bed collision can better maintain the shape of particles.
  • Low temperature and medium-free grinding, suitable for heat-sensitive, low-melting, sugar-containing, and volatile materials.
  • High-temperature and high-pressure grinding to achieve higher injection speed, lower dynamic viscosity, and highergrinding fineness and  efficiency.
  • Inner, classifying wheels, nozzles and other key components can be protected by wear-resistant materials such as alumina, zirconia, and silicon carbide, and organic materials to avoid contact with metal during the entire grinding process and obtain high-purity products.
  • The grading wheel is installed horizontally, which can better control the fineness of products with low density and produce finer products.
  • Inert gas closed-circuit cycle/explosion-proof design, which can meet the grinding of flammable, explosive, easy to oxidize, and easy to absorb moisture materials.

Working Principle

Fluidized Bed Opposed Air Jet Mill: After the compressed air is filtered and dried, it is sprayed into the grinding chamber at high speed through the Laval nozzle. At the intersection of multiple high-pressure airflows, the materials are repeatedly collided, rubbed, and sheared to be crushed. The crushed materials rise with the suction of the fan. The airflow moves to the classification zone. Under the action of the strong centrifugal force generated by the high-speed rotating classification turbine, the coarse and fine materials are separated. The fine particles that meet the particle size requirements enter the cyclone separator and dust collector through the classification wheel for collection, and the coarse particles descend to the crushing zone and continue to be crushed.

Product parameters

parameter/ Model MQW03 MQW06 MQW010 MQW20 MQW30 MQW40 MQW60 MQW80 MQW120 MQW160 MQW240
Feeding Size(mm) <1 <2 <2 <3 <3 <3 <3 <3 <3 <3 <3
Production Capacity(kg/h) 0.3~10 10~150 20~300 40~600 100~900 200~1200 500~2000 800~3000 1500~6000 2000~8000 4000~12000
Particle size(D97:μm) 3~45 3~45 3~45 3~45 3~45 3~45 3~45 3~45 3~45 3~45 3~45
Classifier motor (kw) 2.2 3 5.5/7.5 7.5/11 11/15 15/7.5x3 7.5x3 11x3 15x3 15x4 15x6
Air consumption(m³/min) 3 6 10 20 30 40 60 80 120 160 240
Air pressure(Mpa) 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1

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.

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