There are many kinds of industrial dryers, which can be divided into three types:
1. Rotary drum dryer: drum dryer is one of the traditional drying equipment, The equipment has the advantages of reliable operation, flexible operation, strong adaptability and large processing capacity, widely used in metallurgy, building materials, chemical industry, coal washing, fertilizer, ore, sand, clay, kaolin, sugar, and other fields, diameter: Φ1000-Φ4000, length depending on the requirement of drying.
Drum dryer mainly includes three forms: single cylinder dryer, double cylinder dryer and three cylinder dryer. The three - way dryer has the advantage of small floor space and low energy consumption.
2. Tunnel dryer: tunnel dryer is based on the absorption of foreign advanced drying technology to develop their own dryer, It carries materials by cart, make full use of the effective drying space, suitable for a variety of shapes of materials drying. The whole machine is divided into several temperature and wet bottom sections, and the materials are changed up and down at the drying medium level through the whole drying section. The heat sources include steam boiler and hot wind furnace (coal burning, fuel oil and gas).
3. Box-type dryer: Box-type dryer adopts double crawler conveyor to eliminate the phenomenon of damage on the surface of the material and adopts two-way cross through way, adjustable stand cloth, increases are expected to devices and other measures, to ensure product moisture uniform, residence time of the drying temperature, the material in the machine and the thickness of the material layer can be made by the computer intelligent control, because 50% - 95% of the hot air can be recycled and used insulation casing, greatly reduce the energy consumption and production cost, at the bottom of the automatic cleaning mechanism, automatic cleaning, plate adopt laser cutting blanking, put an end to the body caused manual cutting deformation phenomenon. It is suitable for drying and treating high grade puffed granular feed and pet feed, and also for drying and treating granular and flake materials in grain, food and chemical industries.
The above three types of industrial dryer can be divided into three different heating methods according to their different energy supply: A. electric heating type B. steam heating type. C. gas (oil) heating type.
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