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Heat exchanger for e.g. heating bio-solid, has channeling unit allowing circulation of heat transfer fluid, along predefined path, in propeller and tubular body and prohibiting recirculation of fluid already flown along part of path
Heat exchanger for e.g. heating bio-solid, has channeling unit allowing circulation of heat transfer fluid, along predefined path, in propeller and tubular body and prohibiting recirculation of fluid already flown along part of path
The heat exchanger has a conveyor auger (2) including a hollow propeller (4) cooperating with a hollow tubular body (5) and including a heat transfer fluid supply unit (6). A channeling unit (7) of the conveyor auger allows a circulation of heat transfer fluid, along a predefined path, in the propeller and the tubular body and prohibits the recirculation of the fluid already flown along the part of the path. A unit (9) reduces internal volume used for circulation of the fluid in the hollow body.
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