Powder dryer equipment is particularly suitable for materials with a final water content of <1%. It is widely applicable to all kinds of powder materials, such as filter cake, flake, fiber, paste, paste-like materials, materials containing crystal water, heat-sensitive materials and touch-sensitive materials. High thermal energy utilization and low operating costs. Compact structure and small footprint.
(1) The equipment has high technical content and organically combines swirling, fluidizing, spraying and crushing and grading technologies.
(2) Large production capacity and high drying strength. Due to the material being subjected to centrifugation, shearing, collision, and friction, the material is micronized into a highly dispersed state and the relative speed between the solid and gas phases is relatively large, which enhances mass and heat transfer and achieves high efficiency, fast, small equipment, and large production.
(3) No sticking wall and coking discoloration. The drying gas enters the bottom of the dryer, and generates a strong rotating airflow, which has a strong scouring effect on the material on the wall of the dryer, eliminating the phenomenon of sticking to the wall. In the high temperature area at the bottom of the dryer, the heat-sensitive materials do not directly contact the hot surface, and are equipped with special devices to solve the problem of coking and discoloration of heat-sensitive materials.
(4) The heat and mass transfer time in the drying process is short. Due to the high circumferential wind speed in the drying chamber, the material residence time is short, the heat loss is small, and the thermal efficiency is more than 70%.