Optical grade three machine integrated dehumidification dryer

optical gradeThree machine integrated dehumidification dryer


Product Introduction:
The three machine integrated dehumidification and drying machine is designed for engineering plastics with high moisture absorption in the plastic industry. It is a pipeline in a closed circulation state, which will not come into contact with moisture in the outside air. At the same time, molecular sieves and closed regeneration technology reduce the dew point temperature of the dry air in the pipeline to -45 ℃ (dew point is the temperature at which water vapor in the air turns into dew drops). It integrates drying, dehumidification, and transportation into one, with the advantages of fast and simple feeding, compact structure, and durability. Low dew point air not only evaporates and carries away the moisture on the surface of plastics, but also removes the crystalline water inside plastic molecules, achieving the goal of rapidly reducing the internal moisture content of plastic raw materials. It is suitable for granular materials such as PC, PET, TPU, PA, PMMA, PTFE, POM, PE, etc. With the widespread use of engineering plastics, dehumidification dryers have gradually replaced traditional hot air dryers.

optical gradeApplication of Three in One Dehumidification and Drying Machine


Optical grade threeSpecification and Model of Integrated Dehumidification and Drying Machine:

optical gradeThree machine integrated dehumidification dryerFeatures:
1. Stable dew point suitable for drying at -40 ℃~-50 ℃.
2. Adopting double-layer stainless steel material barrels for insulation, energy saving, and easy cleaning.
3. Closed loop control reduces heat and dust emissions, saves energy, and is more environmentally friendly and clean for factory buildings.
4. Using contactless solid-state relays to control heating.
5. No need for cooling water or cooler.
6. The compression system saves 30% more electricity than other honeycomb and double bucket systems.

The use of a dehumidifier dryer has the following benefits:
1. Moisture in plastic raw materials can be removed to eliminate the generation of bubbles, achieving ideal mechanical, electrical, dimensional stability, and appearance of the product.
2. Prevent the production of defective products and return losses, and reduce the generation of waste materials.
3. Dehumidification dryer uses very dry air for dehumidification work, which can shorten the drying time and save labor hours.
4. The air pipelines of the dehumidification dryer adopt a closed circulation system and are equipped with filters, so they are not affected by external climate and can prevent dust from causing pollution in the factory, improving the working environment.

A determining factor for good drying efficiency is:Drying temperature, drying time, air volume, and dew pointThese four factors are interrelated, and any change in one of them will affect the drying effect.
1Drying temperature:It refers to the temperature of the air entering the drying bucket. Each type of raw material has a certain temperature limit during drying due to its physical properties, such as molecular structure, specific gravity, specific heat, moisture content, etc. When the temperature is too high, some additives in the raw material will evaporate, deteriorate or clump. When the temperature is too low, some crystalline raw materials may not meet the required drying conditions, such as PC/120 ℃, ABS/80-95 ℃. In addition, insulation and heat preservation are required in the selection of dry buckets to avoid loss of drying temperature, resulting in insufficient drying temperature or energy waste.
2Drying time:It refers to the pre drying time before the raw materials are formed. If the drying time is too long, it will cause the raw materials to deteriorate or clump, or waste energy. If the drying time is too short, it will cause the phenomenon of high moisture content. For example: PC/3-4 hours, ABS/3-4 hours.
3air volumeIt is a medium that takes away moisture from the raw materials, and the air volume can affect the effectiveness of dehumidification. If the air volume is too large, it will cause the return air temperature to be too high, resulting in overheating and affecting the stability of the dew point. If the air volume is too small, it will not be able to remove the moisture in the raw materials. The air volume also represents the dehumidification ability of the dehumidifier dryer.
4Dew point temperature:It refers to the temperature at which a gas cools to the point where it condenses moisture into water droplets, and is a unit for measuring the degree of dryness (humidity) of a gas. The less moisture in the gas, the lower the dew point temperature. A good dehumidification dryer should have a dew point temperature of -40 ℃.