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Rotary dryer

The tumble dryer is one of the traditional drying equipments. It is generally suitable for the granular materials. It can also be used for the drying of partially mixed materials with dry sticky paste materials or materials with high water content. The utility model has the advantages of large production capacity, wide application range, small flow resistance, large fluctuation range in operation, and convenient operation. Commonly used for drying sand, mineral powder, slime, chicken manure, cow dung, etc.

The drum dryer is mainly used for the production of compound fertilizer, drying fertilizer with certain humidity and particle size, and can also be used for drying other materials. The distribution and angle design of the lifting plate of the machine is reasonable, the performance is reliable, and the heat utilization rate is utilized. High, even drying, less material cleaning, easy to use and maintain

During the drying process of the material, the material is sent to the feeding device of the hopper by a belt conveyor or a bucket elevator, and enters the feeding end through the feeding pipe. The slope of the feeding pipe is greater than the natural inclination of the material so that the material flows smoothly into the dryer. The drum dryer cylinder is a rotating cylinder that is slightly inclined to the horizontal. The material is added from the higher end to the heat carrier from the lower end to enter the countercurrent contact with the material, and the heat carrier and the material are simultaneously flowed into the cylinder. As the rotating material of the cylinder is moved by gravity to the lower end. The wet material is directly or indirectly obtained during the forward movement of the wet material to allow the wet material to be dried, and then sent out at the discharge end through a belt conveyor or a screw conveyor. A copy board is arranged on the inner wall of the cylinder, and its function is to copy and sprinkle the material, so that the contact surface of the material and the air flow is increased to increase the drying rate and promote the advancement of the material. The heat carrier is generally classified into hot air, flue gas, and the like. After the heat carrier passes through the rotary drum dryer, a cyclone dust collector is generally required to collect the materials contained in the gas.

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