Air source heat pump drying is a new type of energy-saving and environmentally friendly material drying method. Air is used as a heat source to absorb low-level heat energy from the air, and then consume a small amount of electricity to convert low-level heat energy into high-level heat energy, thereby drying materials. In the huge air source heat pump drying market, it is very important to choose a reliable manufacturer. Let’s take the air source hawthorn heat pump dryer as an example to introduce the drying process of hawthorn.
1. Select hawthorn fruits with uniform size, no pests and diseases, and plump appearance, wash and slice, put the fruit slices evenly into the material tray, and the thickness of the tile should not be too thick;
2. Control the temperature of the dryer at 60-65 degrees Celsius and dry for 12-15 hours. When the moisture content of the hawthorn slices drops to about 15%, the temperature of the dryer needs to be gradually lowered. Hawthorn has a high water content, so during the drying process, when the relative humidity is higher than 70%, the ventilation should be increased;
3. After the hawthorn slices have cooled to room temperature, carry out grading packaging for storage.
The air-source hawthorn heat pump dryer has the following advantages:
1. Using multi-temperature zone layered temperature control, adjustable speed and automatic control, the baked hawthorn has a sweet and sour taste, moderate hardness, and retains the original nutritional value;
2. The installation and disassembly are flexible and convenient, not limited by space, and can be freely selected indoors and outdoors;
3. The operation process is safe and secure. The entire operation system has no risks of flammability, explosion, poisoning, etc. that may exist in traditional dryers (oil, gas or electric heating). It is a safe and reliable closed drying system;
4. It has a high degree of automation and intelligence, and uses a self-controlled constant temperature device throughout the operation, which can be used for 24-hour continuous drying operations;
5. It has a wide range of applications. The hawthorn heat pump dryer can also be widely used in other fruit drying, one machine with multiple functions;
6. Energy saving and environmental protection. Compared with fuel oil, coal and gas, it can save about 75% of operating costs, and does not produce any combustion and emissions during operation;
7. The service life of the unit is long, up to 15 years;