Paddle dryer

Paddle dryer: The paddle dryer is a horizontal mixing dryer mainly based on heat conduction. Its main structure is a jacketed shell equipped with pairs of hollow low-speed rotating hollow shafts. Several stirring hollow blades are welded, and heat carriers are passed into the jacket and the hollow stirring blades. The two heating surfaces heat the materials at the same time. Therefore, this model has a more outstanding heat transfer rate than the general conductive dryer. According to demand, this model The dryer can be designed as a double-shaft or multi-shaft type. There are three types of dryers: normal pressure, sealed and vacuum. The paddle dryer can be used for drying, heating, cooling, calcination, sublimation, pyrolysis, and reaction.
Performance characteristics:
The paddle dryer has low energy consumption: due to indirect heating, there is no large amount of air carried away to take away the heat. The outer wall of the dryer is also equipped with an insulation layer. For slurry materials, only water is needed to evaporate water. steam.
. The cost of the paddle dryer system is low: it has a huge heat transfer surface per unit effective volume, which shortens the processing time and reduces the size of the equipment. This greatly reduces the building area and building space.
Wide range of materials to be processed: using different heat media, it can process both heat-sensitive materials and materials that require high temperature processing. Commonly used media include: water vapor, thermal oil, hot water, cooling water, etc. It can be operated continuously or intermittently and can be used in many fields.
Low environmental pollution: no carrying air is used, and very little dust material is entrained. The solvent evaporation of the material is very small, making it easy to handle. For contaminated materials or working conditions that require solvent recovery, closed loop circulation can be used.
Low operating costs: Normal operation of the equipment only requires one person per hour/day. Low speed stirring and reasonable structure. The amount of wear is small and the maintenance cost is very low.
Stable operation: Due to the special compression-expansion stirring effect of the wedge-shaped blades, the material particles are fully in contact with the heat transfer surface. In the axial range, the temperature, humidity and mixing gradient of the material are very small, thus ensuring improve the stability of the process.