Animal manure hollow paddle dryer fertilizer drying machine

Description of Hollow Paddle Dryer:

The Paddle Dryer is compact in structure and mainly consists of a sandwich casing, a central shaft with staggered blades, inlet and outlet joints, drive mechanisms, control boxes, and other components.

 The cabinet of hollow paddle dryer is a jacket structure in which hot steam circulates inside. During operation, water vapor is introduced into the jacket, hollow shaft, and blade to provide the heat required for drying; a very small amount of air is introduced into the dryer and used as a carrier for the steam (or organic steam) that evaporates during drying; the material enters the machine from the feed port, and is conveyed by the hollow blade to the discharge port for discharging. The material is heated and evaporated by the hollow blade and the jacket during the conveying process to be dried. The heat transfer surface of the wedge blade has a self-cleaning function. The relative motion between the particles and the wedge surface produces a washing effect that washes away the adhering material on the surface of the blade, which allows the material to have a long residence time and a high fill factor.

Features of hollow paddle dryer:

1. High thermal efficiency and low energy consumption: due to indirect heating, there is not a large amount of air carrying heat, and the outside of the dryer is provided with an insulating layer. For the slurry material, the amount of steam required to evaporate per unit mass of water is small;
 2. Low equipment input cost: there is a huge heat transfer surface in the effective volume of the unit, which shortens the processing time and reduces the size of the equipment. Small space requirements for the site;
 3. A wide range of applicable materials: Hollow paddle dryer is applicable to different heat media, can handle both heat-sensitive materials and materials requiring high-temperature treatment. Commonly used media are water vapor, heat transfer oil, hot water, cooling water, and the like. It can be operated continuously or intermittently and can be applied in many fields;
 4. The environmental pollution is small: the amount of air used is small, and the amount of dust material is less. Closed-loop can be used for contaminated materials or for solvent recovery;
 5. Low operating cost: Hollow paddle dryer is fully enclosed independent operation structure. The amount of wear is small and the maintenance cost is low;
 6. Stable operation: Due to the special compression expansion and agitation of the wedge-shaped blades, the material particles are fully in contact with the heat transfer surface. In the axial interval, the temperature, humidity, and mixing gradient of the material are small, thus ensuring process stability.

Parameters of hollow paddle dryer: