What are the principles and characteristics of the supersonic air flow pulverizer for APIs

The working principle of the supersonic air flow pulverizer for API is to use compressed gas to enter into the pulverizing chamber through the feeding ejector, and spray the raw materials into the pulverizing chamber in a tangent way driven by the high-speed air flow sprayed by multiple nozzles, so as to achieve the friction pulverizing effect The pulverizing fineness is controlled by adjusting the longitudinal depth of the pulverizing chamber, the pulverizing pressure or the feeding speed Compared with the fluidized bed air flow pulverizer, the pulverizing fineness is less controllable, but it has a good pulverizing effect for the materials with viscosity The supersonic air flow pulverizer of API has the following characteristics: 1 It is suitable for the ultra-fine pulverization of dry powder materials, with large impact particle size, which can reach more than Mach 2.5, and the general materials are easy to be crushed to 1-10 μ M 2 Compared with the fluidized bed air flow pulverizer, it has a good pulverizing effect on the viscous materials, and there will be no phenomenon that the blocking materials cannot be crushed in the pulverizing process 3 No temperature rise In the pulverizing process, the temperature drops due to the compressed gas nozzle, and there is no mechanical friction process, so the pulverizing process will not be heated It is suitable for the pulverizing of materials with heat sensitivity and low melting point 4 The equipment is simple, convenient for cleaning, convenient for operation and maintenance, small floor area, low noise and no vibration 5 With less investment, unnecessary equipment such as dust remover, fan and control box can be cancelled according to customer demand.