FIELD: heat exchange equipment; chemical, food-processing and other industries for drying dispersed, loose and paste-like agents; production of native mash - alcohol production process waste.
SUBSTANCE: proposed device has housing with branch pipes for delivery of agent to be dried and heat-transfer agent and unloading dried material. Housing is also provided with tubes coaxially mounted inside it and provided with spiral components at direction of twist of spiral component of each tube opposite relative to that of adjacent tube; delivery branch pipe is connected with mixing unit on one side and with interior of inner tube on other side. Tubes are so mounted in housing that form cavities of transition from one cavity to other for admitting agent to be dried with heat-transfer agent to each cavity beginning with cavity of inner tube and then to cavities formed by outer surface of each tube and inner surface of adjacent tube, as well as by outer surface of extreme tube and housing.
EFFECT: reduced losses of thermal energy.
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