What is the heat pump dryer

Heat pump dryer,infact is use of the heat pump technology applying into drying. A Heat pump dryer is the use of reverse carnot principle, absorbing outdoor hot air and transferring them into the drying room, to realize the temperature of drying room, cooperate with relevant equipment to realize the material drying.The heat pump dryer main parts including compressor, heat exchanger , choke, heat absorber - compressor unit constitute a circulation system, etc.Under the action of refrigerant in the compressor circulating in the system.It made within the compressor gas booster heating process (temperature up to 100 ℃), heat release it into the machine-- high temperature heating drying room air, while being cooled and translated into flow liquid when it runs to the outside machine, rapid heat evaporating liquid into a gas again, at the same time, the temperature dropped to minus 30 ℃, 20 ℃, the air surrounding the heat absorber will continue to transfer heat to the refrigerant.The refrigerant cycle is constantly realize heat from the air transport to the drying room heating the air inside the room temperature.  

What is the working priciple for PHNIX drying machine:

1. The heat pump dryer evaporator absorbs heat from external environment(air) or recovers the heat remained in the drying process.
2.The heat will go through the compressor, and the energy is moved (transgerred) to drying box.
3.The heat will be released through the condenser in the drying box, and the hot air in the box will bw repeatedly heated while absorbing moisture in materials and lowering temperature and humidifying itself.
4. After the process of hot-air dewatering or condensed water removal the moisture in materials vents, and finally realizes the continuous dry of materials.

PHNIX herbs drying machine main features

1, Energy saving and environment  protection

Adopt close dehumidify + circulating drying type, saving operating cost;

Without waste gas and waste heat pollution, low noise

2, Stable property and operating easily

Touch screen full automatic control

Different materials with different drying type, adopt PLC control, can setting different drying curve, suitable for drying different materials.

3, Second waste heat recovery technology

    Adopt air to air heat exchanger dehumidify and recovery waste heat at the same time, saving energy more than 40%.

4, Accurate control temperature and humidity

    According to different material setting different drying curve, the heat pump dryer can control the drying chamber temperature

 between 10~75C.

5, Horizontal Blowing 360ºC

    By using the forced ventilation function, there are partition sheet and fan motors inside the drying chamber to make sure hot air cycle, so ensure a high drying efficiency and save energy, lead to a uniform drying.

6, It's batch operation, so can adjust process condition anytime. Thus can change product from time to time

7, Dry material in tray, easy for load and unload, not easy cause any damage for the raw material, clean conveniently.

Specifications

How to drying lemon by heat pump dryer

Step 1: Select high-quality lemon, carefully clean it, there are saline water cleaning method, soda water cleaning method or ultrasonic cleaning method, and so on. The main purpose is to remove pesticide residues or wax.

Step 2: Slice the lemon into 4 mm slices. Pay attention to the uniformity of thickness and the error should not exceed (+1 mm). In addition, the lemon seeds should be removed to avoid affecting the drying quality and the taste.

Step 3: Put the lemon slices on the ventilated tray tidily, avoid stacking, first use natural wind and light to remove part of the moisture from the lemon slices. Transfer the air-dried lemon slices for one day to the air-powered lemon drying room. Set the temperature of the dryer to the range of 40-50 C. The moisture of the lemon slices should evaporates and discharges slowly during the process of low temperature drying. The drying process lasts for about 12-13 hours.

Step 4: Set the shelf trolley in lemon slices in the drying chamber, or set up a special moisture regain room, and put the shelf trolley in the room to wait for the moisture return. At this time, the surface is dry. The main reason is that lemon slices are seriously deformed under hot air drying process, and the surface of the slice is oxidized and formed a dense protective layer, which is not conducive to the continuous evaporation . When placed for a period of time, the water in the lemon slices migrates to the surface of the lemon slices and its become soft. You can feel the surface is become wet by hand, then push it into the drying room again for secondary drying and re-baking.

PHNIX Heat Pump Dryer Applications
Herb:
pseudo-ginseng, aniseed,RADIX MORINDAE OFFICINALIS, dendrobe, Chinese yam, glossy ganoderma, sea cucumber, honeysuckle, flower, fructus momordicae(Luo Han Guo), cassia, ginseng, ginger, maca, Chinese wolfberry, Chinese angelica root etc.
Agriculture products:
Dragon fruit flower, rose, chrysanthemum flower, mushroom, edible fungus, sweet potatoes, okar, white fungus, edible tree fungus, red pepper, Daylily, Agrocybe aegerita, henryst eudnera tuber, dried vegetables, baboo shoot, cassava, starch, tomato puer, black tea etc.

Fruit:
Longan, Litchi, banana, mango,date, waxberry, plum, lemon, raisin, artocarpus heterophyllus lam, kiwi fruit, dried persimmon, olive, candied fruit ect.
Food:
sausage, preserved pork, smoked fish, intestine and casing, rice noodles, noodles, beancurd sticks.
Seafood:
sea fish, squid, shrimp, seaear, trepan, cuttlefish, hippocampi etc.
Industrial products:
redwood, redwood furniture, bamboo products inscense, mosquito coils etc.

PHNIX service

We calculate the capacity according the requirement and recommend the best models.

We supply you the professional refrigeration technical support and electronic technical support for your installation, debugging and operation.
We supply the spare parts and technical support in & after the warranty time.
We supply the training course to your workers at our factory if you need.

 After-sales service

1, Technical support for your installation, operation and maintenance. 
2, One year's warranty, and you can pay for extended warranty.
3, Spare parts and technical support at most economic prices after the warranty