EQUIPMENT DRYING LOOSE MATERIALS Russian patent published in 1999 - IPC

FIELD: chemistry, drying of thermoplastic materials. SUBSTANCE: equipment is manufactured in the form of hopper extended vertically and having conical extremity underneath and cover with IR radiators linked with the aid of air conduit to source of heat transfer agent. Equipment includes branch pipes to feed heat transfer agent and discharge member, collector located on upper butt of hopper under cover over its periphery and joined to a number of pipe-lines oriented downwards along hopper on its outside. Bottom base of cover presents screen transparent to IR radiation. Equipment also has member to intake heat transfer agent fabricated in the form of plate with hole in central part and placed at some distance from upper base which value b=, where b is distance between plate and upper base of cover; S is area of suction aperture of fan; d is diameter of hole in plate. Member to discharge spent heat transfer agent is manufactured in the form of ring with holes over its periphery and filter put on it. Collector has toroidal shape. EFFECT: diminished energy consumption. 3 cl, 1 dwg