Air flow crushing classifier is used for all kinds of materials
Send Time:2021-7-24
The structure of the airflow crushing classifier is composed of the lower airflow crushing area and the upper airflow classification area. The airflow crushing area is provided with horizontally arranged Laval nozzles, and the airflow classification area is mainly provided with three-dimensional arranged classification worm gears and motor drive system.
The raw materials are quantitatively added into the machine from the upper part of the crushing area by the feeding screw, the compressed air is injected into the supersonic air flow through the horizontally symmetrically distributed Laval nozzle, and the animal materials are collided and sheared to crush the materials. The crushed fine powder is driven by the negative pressure air into the turbine classification area, and the coarse particles are thrown back to the crushing area under the action of centrifugal force to continue grinding, Under the action of negative pressure air, the qualified fine powder passes through the "cage" impeller rotor and is discharged out of the machine and collected by the collector. During the falling process of coarse particles, the fine powder mixed between them or the qualified powder attached to the surface of coarse particles are elutriated through the secondary air elutriation area, so as to further improve the classification efficiency.
The crushing mechanism of airflow crushing classifier determines its wide application range and high fineness of finished products. Typical materials are:
1. High hardness materials: silicon carbide, various corundum, boron carbide, alumina, zirconia, garnet, zircon sand, diamond, etc
2. Nonmetallic minerals: quartz, graphite, kaolin, calcium carbonate, mica, barite, mullite, Maifan stone, wollastonite, talc powder, 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, all kinds of vegetable powder, all kinds of Chinese herbal medicine, all kinds of 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, phosphor, copy material powder, etc
By changing the ordinary air in the air source part into inert gases such as nitrogen and carbon dioxide, the machine can become an inert gas protection equipment, which is suitable for crushing and grading processing of flammable, explosive, easily oxidized and other materials.
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