How to buy a tumble dryer The drying medium of a direct heat transfer drum dryer is usually flue gas. The downstream direct heat transfer drum dryer has a combustion chamber at the same end as the wet material feed, and the hot air flow is in the same direction as the material movement, and the wet material moves from the feed end to the discharge end, and the hot air also The feed end flows out through the discharge end under the action of the blower and the induced draft fan, and the wet material is heated and dried by the heated air during the flow.
Countercurrent direct heat transfer drum dryer, which is fed into the dryer from the feeding end, the combustion chamber is arranged at the discharge end, and the material moves in the opposite direction with the drying medium (hot air). It is heated and dried.
Downstream drying Because the fed wet material enters the dryer, it is in contact with the higher temperature drying medium, and the initial drying driving force is larger. Later, as the temperature of the material increases, the temperature of the drying medium decreases. Therefore, it is suitable for the physics that does not require high final water content (ie, dryness). The discharged dry material has a low temperature and is easy to transport. However, from the point of view of dust generation, fine materials are easily taken away by the airflow, and the amount of dust is large. Countercurrent drying In the drying process, the drying driving force is uniform, which is suitable for the drying of the materials to be dried. The dust carried by the drying medium is filtered through the wet zone, and the airflow contains less dust. The specific method of drying depends on the final requirements of the dried material.
Countercurrent direct heat transfer drum dryer, which is fed into the dryer from the feeding end, the combustion chamber is arranged at the discharge end, and the material moves in the opposite direction with the drying medium (hot air). It is heated and dried.
Downstream drying Because the fed wet material enters the dryer, it is in contact with the higher temperature drying medium, and the initial drying driving force is larger. Later, as the temperature of the material increases, the temperature of the drying medium decreases. Therefore, it is suitable for the physics that does not require high final water content (ie, dryness). The discharged dry material has a low temperature and is easy to transport. However, from the point of view of dust generation, fine materials are easily taken away by the airflow, and the amount of dust is large. Countercurrent drying In the drying process, the drying driving force is uniform, which is suitable for the drying of the materials to be dried. The dust carried by the drying medium is filtered through the wet zone, and the airflow contains less dust. The specific method of drying depends on the final requirements of the dried material.
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