The product can indirectly heat or cool the paste, granular, powder and slurry materials, and can complete the unit operation of drying, cooling, heating, sterilization, reaction and low temperature combustion. The special wedge-shaped stirring heat transfer slurry leaves in the equipment have high heat transfer efficiency and self-cleaning function of heat transfer surface.
The hollow shaft is densely arranged with wedge-shaped hollow slurry leaves, and the hot medium flows through the slurry leaves via the hollow shaft. The heat transfer area is large within the unit effective volume, and the temperature of the hot medium is from -40℃ to 320℃, which can be water steam or liquid type: such as hot water, heat-conducting oil, etc. Indirect conduction heating, no carrying air to take away heat, heat are used to heat the material. The heat loss is only the heat dissipation to the environment through the insulation layer of the body. Wedge type slurry leaf heat transfer surface has self-cleaning function. The relative movement of the material particles and the wedge-shaped surface produces a scrubbing effect, which can scrub off the material attached to the wedge-shaped surface and keep a clean heat transfer surface during operation. The shell of the slurry leaf dryer is Ω-shaped, and two to four hollow stirring shafts are generally arranged in the shell. The shell has sealed end cover and upper cover to prevent the material dust from leaking out and give full play to the role. The heat transfer medium flows through the shell jacket and the hollow stirring shaft through the rotary joint. The hollow stirring shaft has different internal structure according to the type of heat medium to ensure the best heat transfer effect.