12
2017
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10
The concept of a belt dryer and the characteristics of a belt dryer.
The belt dryer consists of several independent unit sections. Each unit section includes a circulating fan, heating equipment, an independent or shared fresh air intake system, and an exhaust gas discharge system. The operating parameters for the quantity, temperature, humidity of the drying medium, and the amount of exhaust gas circulation can be controlled independently, ensuring the reliability of the belt dryer operation and optimizing the operating conditions. The belt dryer operates sensitively, with wet materials fed in, and the drying process takes place in a completely sealed chamber, providing good working conditions and preventing dust leakage. The belt dryer is a continuous drying equipment used for batch production, suitable for drying materials that are porous and in sheet, strip, or granular form. It is particularly suitable for high moisture content materials such as dehydrated vegetables, catalysts, and traditional Chinese medicine pieces, where the material temperature should not be high; this series of dryers has the advantages of fast drying speed, high evaporation intensity, and good product quality. For dehydrated filter cake-like pasty materials, granulation or shaping into strips is required before drying. Features of the belt dryer.
(1) The vibration and impact experienced by the materials on the belt dryer are minimal, making it suitable for drying certain materials that should not be crushed.
(2) The belt dryer not only dries materials but can also perform baking, calcination, or maturation processing operations.
(3) The layout of the belt dryer is not complicated, the equipment is convenient, it can operate for a long time, and when a fault occurs, maintenance can be performed inside the chamber.
(4) The air volume, heating temperature, material residence time, and feeding speed can be adjusted to achieve the best drying effect.
(5) The equipment is flexibly configured and can use a mesh belt washing system and a material cooling system.
(6) Most of the air is recycled, which greatly saves energy.
(7) The unique air distribution device ensures more uniform distribution of hot air, guaranteeing the consistency of product quality.
(8) The heat source can use steam, heat transfer oil, electricity, or coal (oil) hot air furnace.
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