First, the working principle
Material in the hopper by the feeder evenly spread on the belt, mesh belt adopts 12-60 mesh stainless steel wire mesh, drag the gear in the dryer moving. Drying section consists of several units, each unit independently circulating hot air, part of the exhaust gas discharged from the fan 6 which specialized humidity. Each unit has a regulating exhaust gas volume control valve 7. The cycle unit, circulating fan 5 and out of the wind to enter from the side duct units of the chamber, the air flow through the heat exchanger 4 is heated up, and after distribution by the distributor 3, a jet stream blowing belt, through the material After entering the upper chamber. Hot air through the drying process is the layer of material, complete mass transfer, heat transfer process. By the upper chamber connected to the inlet duct and fan, most of the gas cycle, a portion of low temperature moisture
A large amount of gas as waste gas humidity control, control valves, humidity and the fan discharge. Cyclic unit, circulating fan out into the wind to the upper chamber, down through the heat exchanger is heated through the material layer into the lower chamber, the lower chamber by the side of the duct and the return duct and fan inlet connected to most of the gas cycle part of the discharge. Upper and lower circulation unit can be flexibly equipped according to user needs, the number of units can be selected according to the user.
Second, the main purpose
GDL Series belt dryer is continuous drying equipment, which is suitable for drying better ventilation sheet, strip, granular materials, such as dehydrated vegetables for Chinese Herbal Medicine and other high moisture content, and the high temperature of the material is not allowed particularly suitable materials, the series dryer has a drying speed, high evaporation strength, good product quality advantages.