DRIER OF LOOSE MATERIALS Russian patent published in 1999 - IPC

FIELD: chemistry, drying of thermoplastic materials. SUBSTANCE: drier has hopper with double cone-shaped walls that carries ejector having tube and nozzle, cover with IR radiators inside it and transparent shield, unloading unit and pipe-lines to feed and discharge heat transfer agent which links cover and hopper. Drier has controlled heaters arranged on ends of pipe-lines discharging heat transfer agent and arranged opposite to cover. One heater is connected to nozzle of ejector and second one is linked to ring space made in unloading unit that has holes to egress heat transfer agent into hopper. Drier also has perforated mirror placed in internal space of cover, nozzle of ejector houses dissector in the form of tape helix and upper part of ejector tube is fitted with conical- spheroidal baffle plate. Controlled heaters are fabricated in the form of branch pipe inside which ribbed tubular electric heater is positioned. EFFECT: enhanced productivity, efficiency and reliability. 1 dwg