SMOKE PRODUCING METHOD AND APPARATUS Russian patent published in 2000 - IPC

FIELD: meat, fish processing and milk industry, in particular, production of wood smoke. SUBSTANCE: method involves preheating, drying off and providing dry distillation of saw dust. Preheating and drying off processes are performed by means of heat supplied by electric heaters and simultaneously by blowing air through them. Saw dust dry distillation process is performed successively in zone with limited air exchange capacity, with saw dust being continuously mixed. Method further involves separate removing smoke and ash in smoke producing apparatus. Apparatus has drum-type housing with channel-shaped non-downcomer type nozzles 11, heating members 13 and 14, smoke guide, discharge chamber and smoke cleaning device. Housing is divided by round shutter 17 free of segment into preheating, drying off and dry distillation zones. Dry distillation zone is positioned in the vicinity of end part of moisture removal pipe 16 extending in axial alignment with drum axis. Heating member of segment-shaped section is positioned in lower part of drum and made sectioned, with different power intensity in different zones of housing. Shutter 17 and heating member are arranged so as to position segment chord at an angle corresponding to rest angle of saw dust. Output flange has coaxial smoke discharge opening and peripheral ash discharge and smoke exit openings positioned around moisture removal pipe 16. Discharge chamber is divided into zones by partition wall with opening. EFFECT: reduced power consumption, enhanced reliability in operation and improved quality of wood smoke. 3 cl, 4 dwg