Jet Mill is used for various materials

The structure of the jet mill consists of a lower air flow crushing area and an upper air flow classification area. The air flow crushing area has a horizontally arranged Laval nozzle, and the air flow classification area mainly has a three-dimensionally arranged classification worm gear and motor transmission system.

Jet Mill Trial Site

The raw materials are quantitatively added into the machine from the upper part of the crushing zone by the feeding screw. The compressed air is ejected through the horizontally symmetrically distributed Laval nozzles to emit supersonic airflow to drive the materials to collide and shear themselves, causing the materials to be crushed. The fine powder produced by the crushing enters the turbine classification zone driven by the negative pressure wind, and the coarse particles are thrown back to the crushing zone under the action of centrifugal force to continue grinding. The qualified fine powder passes through the "cage-shaped" impeller rotor under the action of the negative pressure wind and is discharged out of the machine and collected by the collector. During the falling process of the coarse particles, the fine powder mixed in them or the qualified powder attached to the surface of the coarse particles is washed in the secondary air washing zone, so that the classification efficiency is further improved.

Jet Mill Trial Site

The pulverizing mechanism of Jet Mill determines its wide application range and high finished product fineness. Typical materials include:

1. High hardness materials: silicon carbide, various corundum, boron carbide, alumina, zirconium oxide, garnet, zircon sand, diamond, etc.
2. Non-metallic minerals: quartz, graphite, kaolin, calcium carbonate, mica, barite, mullite, medical stone, wollastonite, talc, pyrophyllite, etc.
3. Chemical industry: aluminum hydroxide, silica gel, various dyes, epoxy resin, various additives, etc.
4. Food and medicine: pollen, hawthorn, pearl powder, ganoderma lucidum, various vegetable powders, various Chinese herbal medicines, various health products, cosmetics, antibiotics, etc.
5. Metal materials: aluminum powder, magnesium powder, zinc powder, tin powder, copper powder, etc.
6. Other materials: ceramic materials, refractory materials, electronic materials, magnetic materials, rare earth materials, fluorescent powder, copy material powder, etc.

By changing the normal air in the air source to inert gas such as nitrogen and argon, the machine can be made into an inert gas protection device, which is suitable for crushing and grading of flammable, explosive, and oxidizable materials.

More details about airflow crushing and grading machine. Weifang Jinghua Powder Engineering Equipment Co., Ltd.