PLANT FOR HEAT AND THERMOCHEMICAL TREATMENT Russian patent published in 1996 - IPC

FIELD: treatment of steels and alloys in fluidized bed. SUBSTANCE: plant includes working chamber, having upper lower parts. Muffle with heater and sealed cover with holder of articles are arranged in the upper part. Vessel for technological material into which coil type heat exchanger is immersed is arranged in the lower part. The coil of the heat exchanger has inner surface of such dimension that the holder with articles may be placed into it. The vessel is provided by mechanism for vertical motion. On outlet ends of the heat exchanger flexible hoses connected through thermocontroller with circulation pump are mounted. Heat protection flaps having drive units for their horizontal motion are arranged in the lower part. EFFECT: enhanced structure of plant. 1 cl, 3 dwg