Continuous Hollow Blade Vacuum Paddle Dryer For Sludge Dewatering

Densely lines with wedge-shaped hollow shaft hollow blades, heat medium throughthe hollow axial flow through blades, Unit effective volum of a very large area of heat transfer, heatmedium temperature from -40℃ to 320℃, can be water vapor, may also be liquid -type: such as water,oil and so on. Indirect conduction heating, the air does not carry away the heat, the heat are used to enviromnet, heat insulation layer. Wedge-shaped surface material particals and scrubbing effectt relative movement, to wash away the wedge surface material attachments, so in operation have maintained a clea heat transfer surfaces. Blade dryer for the W-type shell, the shell of the general arrangements for 2-4 hollow stirring shaft. Shell with a sealed cover with the cover to prevent dust leakage and cllection of materials, solvent vapor materials. Set out and exit pull a block, to ensure a high degree of materials level, so that heat transfer surface is coverd with fully materials. Heat meduium through the roraty joint, passing through the shell jacket and the hollow stirring shaft, hollow shaft stirring according to the type of thermal media have different internal structures to ensure the best heeat transfer.

The main structure is a W-shaped shell with a jacket, which is equipped with a pair of hollow low-speed rotating hollow shafts. A number of mixing blades are welded on the shaft. The jacket and the hollow mixing blades are all equipped with heat carriers, and the two heating surfaces heat the materials at the same time. The heat carrier is usually fed from the middle of the dryer and discharged from the other side through the surface of the material layer in the agitated state.
Wedge-shaped hollow blades are densely arranged on the hollow shaft, and the thermal medium flows through the blades through the hollow shaft. The unit effective volume has a large heat transfer area. The temperature of the thermal medium ranges from - 40 ° C to 320 ° C, which can be water vapor or liquid type: such as hot water, heat transfer oil, etc. Indirect conduction heating does not carry air to take away heat. Heat is used to heat materials. The heat loss is only the heat dissipation to the environment through the insulation layer of the reactor body. The heat transfer surface of the wedge-shaped blade has the function of self-cleaning. The relative movement of the material particles and the wedge-shaped surface can wash off the attached materials on the wedge-shaped surface, so that the clean heat transfer surface is kept in motion all the time.