COMBINATION PLANT FOR MATERIAL HEAT TREATMENT Russian patent published in 2001 - IPC

FIELD: thermal treatment, crushing, classification, separation, and conditioning of loose materials. SUBSTANCE: combination plant has two stages of similar set of components: air-spout chamber 12, finish drier 3, 4, discharging cyclone, crushing spreaders 14, 15, and recirculating pipes 8, 9 providing communication between finish drier and nozzle for coolant admission to air-spout chamber; second stage communicates with first one by means of pipeline incorporating recirculation fan 7 whose inlet is connected to finish driers through their built-in axial cyclones 5, 6; finish driers may be of spiral or cyclone type. EFFECT: reduced loss of finished product; enhanced reliability and improved quality of dried material. 2 cl, 3 dwg