The dehumidification methods of dehumidification dryer are:
1. Dehumidification by adsorption rotor: The thin plate impregnated with hygroscopic agent is processed into a honeycomb rotor for ventilation to achieve the dehumidification effect.
2. The liquid absorption type dehumidification drops to about, but the equipment is larger, and the absorbing liquid must be replaced; the other is to use capillary action to adsorb water on the solid moisture absorbent, which can reduce the dew point, but the equipment will follow when the adsorption area is large. Get bigger.
3. Compression and dehumidification
Compress and cool the moist air to separate its moisture to achieve dehumidification effect. It should be noted that this dehumidification method is effective in small air volume occasions, but it is not suitable for large air volume.
4. Cooling and dehumidification
The air is cooled to below the dew point, and then the condensed moisture is removed to achieve the dehumidification effect. This method is effective when the dew point is above.
Working principle of desiccant dryer:
Dehumidification and drying part: The hot and humid air coming back from the drying barrel is cooled and blown into the honeycomb runner. The moisture in the air is adsorbed by the runner and then desorbed by the regeneration heating air. The two airflows act on the runner at the same time, and with the rotation of the runner, the moisture in the air is continuously adsorbed and then desorbed by the regeneration air to be discharged, forming a stable low dew point air, which is heated to plastic The drying temperature is blown into the drying barrel to form a closed cycle to dry the raw materials.
Suction part: Suction material is sucked into the drying bucket from the storage bucket or other storage silo container. When the reed switch of the vacuum hopper detects that there is no material, the suction motor runs to generate a vacuum in the vacuum hopper. The raw materials in the storage bucket are sucked into the vacuum hopper due to the air pressure difference. When the suction time is completed, the suction motor stops running, and the raw materials fall into the drying bucket due to their own weight. The dried raw materials are pumped from the drying barrel to the electric eye hopper installed in the plastic molding machine.
The above is a detailed introduction of the dehumidification method and working principle of the dehumidification dryer. There is no good or bad dehumidification method of the dehumidification dryer. When choosing, you need to choose the appropriate dehumidification dryer according to the use and occasion.
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