The product can indirectly heat or cool paste, granular, powder, slurry materials, can complete drying, cooling, heating, reaction, low temperature combustion unit operations. The wedge type stirred heat transfer blade in the equipment has high heat transfer efficiency and self-cleaning function of heat transfer surface.
The hollow shaft is densely arranged with wedge-shaped hollow pulp blades, and the hot medium flows through the hollow shaft. The heat transfer area in the unit effective volume is very large, and the temperature of the heat medium is from -40°C to 320°C. It can be water steam or liquid type: such as hot water, heat conduction oil, etc. Indirect conduction heating, without carrying air to take away heat, heat is used to heat the material. Heat loss is only heat loss to the environment through the body insulation. The heat transfer surface of wedge blade has self-cleaning function. The relative motion of the material particles and the wedge surface produces a washing effect, which can wash away the attached material on the wedge surface and keep a clean heat transfer surface in operation. The shell of the pulp leaf dryer is mouth shaped, and two to four hollow stirring shafts are arranged in the shell. The shell has a sealed end cover and top cover to prevent the material dust leakage and give full play to its role. The heat transfer medium flows through the rotating joint through the shell jacket and the hollow stirring shaft. The hollow stirring shaft has different internal structures according to the type of the heat medium to ensure the heat transfer effect.
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