As a new type of equipment, flash dryer has the advantages of high technological content, high standardization, environmental protection, safety, low consumption and simple maintenance. The equipment has a compact structure and a small footprint. It integrates drying, crushing and classification. It is an organic combination of cyclone technology, fluidization technology, spray technology and convection technology. After drying, there is no need for crushing and screening, which simplifies production. process, saving power and equipment costs.
As the material is subjected to centrifugation, shearing, collision, and friction, it is granulated, becomes highly dispersed, and the relative speed between the solid and gas phases is relatively large, which strengthens the mass and heat transfer, making the machine's production intensity high.
The hot air enters the mixing and crushing drying chamber from the bottom of the flash dryer at a suitable spray speed through the inlet pipe, generating a strong rotating air flow, which has a strong flushing and pulling effect on the material on the wall, eliminating wall sticking. When the moisture content reaches the required level, the small particles are taken out from the center of the drying chamber by the gas, and the larger and wetter particles continue to be crushed and dried to ensure uniform moisture content and particle size of the product.
In the high-temperature zone at the bottom of the flash dryer, heat-sensitive materials are not in direct contact with the hot surface, and a special device is installed to solve the problem of coking and discoloration of heat-sensitive materials.
Flash dryers have been designed in a variety of models according to different materials and have formed a series of products. They are widely used in chemical, pharmaceutical, light industry, food, mineral and other industries.
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