Rotary Drying to Reduce Moisture Content in The Biomass Material

Hongxing rotary drying is used to reduce or minimize the liquid moisture content in the biomass material (wood, wood chips, sawdust, straw, stalk, etc.). It is handling by bringing it into direct contact with hot gas.Material to be dried enters rotary drum dryer, and as the dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer.The chute slides out from the machine, allowing unrestricted access to the interior of the vessel for rapid, thorough wash down. Configurations for indirect drying, dehumidifying or cooling are equipped with a jacketed vessel that heats or cools the batch indirectly, minimizing exposure of the batch to plant air. Configurations for direct drying, dehumidifying or cooling are equipped with a material intake chute configured with ports for the purpose of introducing heated or cooled air directly into the batch.Reduces equipment size and the associated capital and operating costs. The only common difference in a rotary drying is the method used to heat and distribute the air into the drum. A direct heated dryer uses the combustion gases generated by the heater mixed with an artificially heated gas. This second gas is nearly always common air, but it can be any inert gas. These systems are only used when the heater exhaust cannot contaminate the work material.The mechanical lifting of the material allows rotary dryers to be used to dry materials ranging from fine filter cake to coarse minerals. It also helps in breaking up lumps, promoting a more uniformly dried material. When the material gets high enough to roll back off the fins, it falls back down to the bottom of the rotary drum drye, passing through the hot gas stream as it falls. Combines flexibility with reliability resulting in a long service life. The rotary is also suitable for operation with a wide range of materials & particle sizes and can more readily accommodate ‘upset’ up-stream process conditions.After 30 years…

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