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Kunshan Superfine Pulverizers Factory

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QSF Deep-cold Jet Milling System

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Product Information:
    After the compressed air is cooled down to -140°C ~ -160°C , it can bring the temperature of the 0.8MPa milling media down to -120°C ~ -140°C through fast exchange of heat, thus rendering the superfine pneumatic pulverization possible under deep cold conditions. The system is composed of air compressor, air storage tank, fast dryer, cooling device, material storage tank, mill, cyclone separator, collector and automatic controller. The materials, when cooled to breakable state, are fed to the milling chamber, where the cooled compressed air is injected at a high speed 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. The centrifugal force and the gravity produced by the fast rotation of grading rotator together with the centripetal force produced by the up flow will act on the grading grains. As the centrifugal force on the coarser grains is greater than the centripetal force, they cannot enter the grading wheel and will be swirled backed into the milling chamber for further milling. The thinner grains will enter the grading wheel and be blasted to cyclone separator and collector whereas the cooled air will return to the compressor, through which it will be compressed for recycling.

1, The cold source forms a closed circuit and therefore causes little energy loss. 2、The cooling method is “green” as no polluting coolant is used. The milling temperature can be brought down to as low as -140°C , and the grinding size reaches d97 = 2um ~ 15um.
3, The milling temperature is controllable. It can be adjusted to the best milling temperature of a particular material, thus lowering energy consumption.
4, Inert gas can be used as media to achieve the integrated effect of low temperature, anti-explosion and anti-oxidation.

The system is applicable to the materials that cannot be pulverized in normal temperature. It can be widely used in such fields as traditional Chinese medicine, western medicine, agricultural chemical, chemical industry, plastics and rubber industries.


1、 Gas Compressor 2 、 Refrigeration System 3 、 Transitional Material storage Tank4 、 6 Cyclone Separator 5 、 QSF Fluidized-bed Pneumatic jet mill 7 、 10 Transitional Product Storage Tank 8 、 11 Product Storage Tank 12 、 15 Material Storage Tank 13 Beforehand cold implement 14 、 Mechanism mill

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