Working Principle:

Currently, fruit and vegetable dryers primarily utilize two technologies: hot air circulation drying and heat pump drying. Simply put, hot air circulation drying uses pure hot air generated by the equipment to heat and dehydrate the material. The more advanced and energy-efficient heat pump technology utilizes the reverse Carnot principle, absorbing heat from the environment to heat the drying air. Simultaneously, the evaporated water vapor is removed through a dehumidification system, resulting in efficient drying of fruits and vegetables.

Key Advantages:

1. High Efficiency and Energy Saving:

Heat pump dryers, in particular, consume only about one-third to one-quarter the power of traditional electric heaters, significantly reducing operating costs.

2. High Quality:

Utilizing medium- and low-temperature drying methods, they maximize the preservation of the color, nutrients, and original flavor of fruits and vegetables, resulting in high-quality dried products.

3. Environmentally Friendly and Safe:

No combustion or emissions are emitted during operation, making this an environmentally friendly product. Furthermore, there are no flammable or explosive hazards, ensuring safety and reliability.

4. Intelligent Control:

Fully automatic intelligent control enables precise control of temperature, humidity, and time, enabling 24-hour continuous operation and reducing manual intervention.

Parameters and Types

Based on the approximate daily processing volume (e.g., how many kilograms of fresh fruits and vegetables need to be dried per session) and budget, combined with production scale, these types of dryers can be categorized as follows:

1. Box-type or intelligent dehumidifying dryers with low investment costs and flexible operation

2. Energy-saving and efficient heat pump dryers

3. Multi-layer mesh belt dryers with high automation and high production capacity

Model/Type	Power	Heating Capacity	Temperature Range	Features/Applications
Smart Fruit and Vegetable Dehumidification Dryer	Approximately 4.8kW (3Hp)	≥16.5kW	40℃-70℃	The temperature and humidity are regulated by a heat pump, which is energy-saving and environmentally friendly and suitable for small or experimental production.
Box dryer	6.3kW	20kW	40℃-70℃	Heat pump principle, energy-saving, suitable for small and medium-sized use
Multi-layer mesh belt dryer	12.22kw	According to production	40℃-90℃	Continuous production, high efficiency (200-1000kg/h), suitable for large-scale processing enterprises