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Importance of humidity control

If the moisture content in the air is high, it is easy to cause dew formation, mildew and other problems, which is not conducive to food processing and storage. To provide high-quality air for high-quality food and create an ideal application environment for food industry can reduce the waste of raw materials, improve the quality and extend the shelf life.


(1)Dairy Product Processing

In terms of the production of whey powder and infant formula milk powder, if drying rotary dehumidifiers are used all year round, the production could be increased by dozens of percent, while the energy consumption can be significantly reduced.


(2)Confectioner

After contacting with the air with excessive humidity, candies may stick together, get mildew or crack. Besides, blockage of machinery and pipes may be caused, which may hinder the production, transportation and storage of candies.


(3)Active dry yeast

The production and storage environment for dry yeast should be kept dry to prevent the yeast from dampness, deterioration and loss of biological activity.


(4)Brewery

In the process of brewing beer, storage containers are usually cooled to about +2℃. Since the surrounding air enters the storage area, condensation may quickly occur on the surface of container, pipe and cold walls in the corridor.


(5)Meat/frozen food

For meat and frozen food, the excess moisture attached to equipment, floor, ceiling and walls can cause potential food contamination and affect product quality and worker safety.

(6)Beverage production

Instant coffee granules have hygroscopicity, thus they must be packed under low humidity conditions, so that products are dry and undeteriorated when consumers open them.



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PD-C Combo Rotary Dehumidifier

Polder Environmental Science& Technology is a professional manufacturer of adsorbing rotary dehumidifier, based on users’ requirements, designs functional sections individually, and satisfies air-conditioning requirements such as air volume, outlet air temperature, outlet air humidity and outlet air cleanness. Meanwhile, relevant patented technologies of Polder Environmental Protection Science& Technology combine the philosophy of greenness, energy saving and environmental protection, apply thermal recycling technology, make the regeneration process more energy-saving, and the optimized body structure and high-performance thermal insulation materials minimize heat losses and save operation costs.

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Technical features

1、It is used to control air dehumidification under various temperature conditions, in particular to use under constant temperature and humidity conditions according to process requirements

2、The complete machine is composed of dehumidifying rotary wheel, blower, air filter, regeneration heater with temperature adjustment, and controls refrigeration, heating, sterilizing and dehumidification of temperature control, the electrical control system of centralized control, the machine enclosure is composed of stainless steel panel and foaming thermal insulation, and material of interior structure is selected based on needs.

3、It is connected with standard pipeline system, power, and sensor and control out of the machine

4、Normal thickness of the rotary wheel is 200mm, low resistance, relatively low energy consumption of the treating blower

5、Filters of various efficiency are provided, and filter pressure difference alarm device is installed

6、The regeneration blower shall be of high-quality blower, resisting high-temperature and corrosion

7、The rotary wheel driving and sealing systems are imported, stable and reliable performance.

8、Stepless adjustment is adopted for regeneration heating, stable operation, precise control and saving operation costs

9、Perfect electrical and control systems are used, reliable and convenient operation and easy maintenance. HMI interface on the touch screen, visual operation and data acquisition.


Detailed consultation