Jet mill is one of the most commonly used superfine grinding equipment, which is widely used in superfine grinding of nonmetallic minerals and chemical raw materials. It has the following characteristics:
(1) The product fineness is uniform, with narrow particle size distribution, smooth particle surface, regular particle shape, high purity, high activity and good dispersibility.
(2) the product is less polluted. Because the air crusher crushes materials according to the principle of self-grinding, the crushing cavity has little pollution to products, so it is especially suitable for crushing materials such as medicines that are not allowed to be contaminated by metals and other impurities.
(3) It is suitable for crushing low-melting-point and heat-sensitive materials and biologically active products. Because the jet mill is powered by compressed air, the adiabatic expansion of the compressed air at the nozzle will reduce the system temperature, so it will not generate a lot of heat in the working process.
(4) It can be operated under aseptic conditions.
(5) The production process is continuous, the production capacity is large, and the degree of self-control and automation is high.
(6) realize joint operation. Because when crushing with superheated high-pressure saturated steam, materials can be crushed and dried at the same time, and can be used as a mixer; When the material is crushed, it can be sprayed with a solution with the required concentration to cover the solid fine particles, so as to form a coating layer and carry out surface modification. Therefore, airflow crushing can be combined with grinding surface coating and surface modification.
application of jet mill
low temperature application
series can operate under supersonic airflow, forming a low temperature environment of tens of degrees below zero in the crushing room, and ultra-fine processing can be carried out on heat-sensitive substances and plastic materials without liquid nitrogen cooling, with low production cost and high benefit. Typical materials are: pigment, resin, sulfur, molybdenum disulfide, pesticide, epoxy resin, PTFE, rubber and ferrophosphorus.
series stainless steel) can be used for ultra-fine processing of medicines, foods and health care products. Its low-temperature crushing, high-purity operation, high processing smoothness and easy cleaning of machines make the series ideal for pharmaceutical, health care products and food industries, which not only improves the bioavailability and curative effect of drugs, but also reduces the production cost. Typical products are: soybean, pollen, hawthorn, sodium chloride, cordyceps, mushrooms, pearl powder, stomach medicine, nimodipine, antibiotics, ginseng, contrast medicine, Ganoderma lucidum, gallnut, Polygonum multiflorum and so on.
It can ultra-fine process hard materials with Mohs hardness above seven, and the application of fluidized bed crushing and vertical turbine classifier makes the wear of the equipment extremely small. The rotating speed of the classifier wheel can be adjusted, and the crushing parameters can be optimized. After the combination of multiple classifiers, narrow-band classification of several particle sizes can be completed at one time. Typical products are: garnet, silicon dioxide, diamond, silicon carbide, white carbon black, emery, bauxite, boron carbide, tungsten carbide, special ceramics and so on.