FIELD: processes of treating materials for producing powder like products, possibly for dry concentration of non metal ore minerals, manufacture of fillers, pigments, different chemical and pharmaceutical preparations.
SUBSTANCE: method comprises steps of drying, disintegrating, pneumatic sorting, deposition and dust trapping. After dust trapping vapors from cleaned technological air are condensed and air is fed to material layer formed in loading hopper. Temperature of material in hopper is set according to temperature value exceeding temperature of initial material. Quantity of air circulating in system is kept constant.
EFFECT: enhanced efficiency of dust trapping, lowered power consumption.
3 cl, 1 dwg, 1 ex
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