Inert Gas Protection Jet Mill System

1Low energy consumption 2For flammable & explosive materials 3Particle size0.5-30um 4Capacity50-1000kg/h 5Inert gas protecte

PrincipleThe inert gas protection jet mill system uses inert gas as midia for pneumatic milling to perform dry-process superfine pulverization. The jet mill system mainly consists of compressor, air storage tank, material storage tank, jit mill, cyclone separator, collector and automatic controller. When the system si activated, inert gas will be released into the system to drive the air out till the whole system will automatically start the material feeding device to feed the materials evenly into the milling chamber of the jet mill. The compressed inert gas is injected at a high speed into the milling chamber by means of special ultrasonic nozzle. Therefore, the materials will be ground by being accelerated, impacted and collided repeatedly in the midst of ultrasonic injection flow. The ground materials will be brought together with up flow to the grading chamber. They cannot enter the grading wheel and will be swirled back into the milling chamber for further milling. The thinner grains will enter the grading wheel and be blasted to ccyclone separator and collector whereas the inert gas will return to the compressor, through which it will be cmpressed for recycling. Features: Wide application: Dirrerent inert gas can be used as the media to suit the particular lammable and explosive material. The recycling of inert gas causes little loss. The purity error of inert gas can be controlled within 1PPM, while the content of oxygen can be fixed at any rate. Since the milling effect only involves the impact and collision among the grains rather tan the collision with the wall, it is applicable to materials with Moh's Hardness above Grade 9. Wide grading range: D97=2-15μ MFully automatic control could be realized as such advanced technology as touch-sensitive screen and programmable PLC controller are used in the unit.

APPLICATION SCOPEThe unit applies to pulverize flammable, explosive and easily oxidative materials and is widely applicable to such field as western medicine, traditional Chinese Medicine, agricultural chemical, chemical industry, metal and rare metal industry.

Model	QBF-260	QBF-400	QBF-600
Working pressure (Mpa)	0.75~0.85	0.75~0.85	0.75~0.85
Air consumption (m 3 /min)	3-15	5-20	8-30
Diameter of fed material ( mesh)	60~325	60~325	60~325
Fineness of crushing(d97μm)	0.5-30	0.5-30	0.5-30
Capacity (kg/h)	15-80	30-180	60-400
Installed power (kw)	53	88	173

Inert Gas Protection Jet Mill System