Korean multi-layer hot air dryer

Materials: apples, lemons, mango slices, longan and other fruits; drying radish, lettuce, pumpkin, carrot, spinach, cassava and other vegetables, etc.


Korean multi-layer hot air dryer

Introduction to multi-layer hot air dryer

  1. Optimized Space Utilization: Multi-layer hot air dryers are designed to maximize space utilization by vertically stacking multiple drying layers within a compact footprint. This configuration allows for efficient use of available floor space while increasing the drying capacity of the equipment.
  2. Modular Design: These dryers often feature a modular design, allowing for easy expansion or customization based on specific drying requirements. Additional drying layers can be added or removed as needed, providing flexibility and scalability in production.
  3. Gentle Drying Process: The multi-layer hot air dryer employs a gentle drying process that minimizes thermal stress on the material being dried. This gentle approach helps preserve the quality, color, texture, and nutritional value of sensitive products, such as food ingredients, herbs, and pharmaceuticals.
  4. Advanced Temperature Control: The dryer is equipped with advanced temperature control systems that ensure precise and uniform heating across all drying layers. This temperature control capability is crucial for achieving consistent drying results and preventing overheating or under-drying of the material.
  5. Efficient Airflow Management: Multi-layer hot air dryers are designed with efficient airflow management systems that optimize the distribution of hot air throughout the drying chamber. This uniform airflow ensures thorough drying of all layers and prevents moisture gradients within the material


Principle of multi-layer hot air dryer

  1. Hot Air Generation: The dryer utilizes a heating system, such as electric heaters or gas burners, to generate hot air. The hot air is then directed into the drying chamber through ducts or channels.
  2. Multi-Layer Configuration: The drying chamber is designed with multiple layers or trays stacked vertically or horizontally. Each layer contains a perforated surface or mesh that allows hot air to pass through and come into contact with the material being dried.
  3. Material Loading: The material to be dried is loaded onto the trays or layers of the dryer. The material can be in the form of granules, pellets, powders, or other bulk solids. The trays are evenly spaced to ensure proper airflow and heat distribution.
  4. Hot Air Circulation: The hot air enters the drying chamber and circulates around the material on each layer. The perforated trays allow the hot air to pass through and remove moisture from the material. The airflow is typically controlled to ensure uniform drying across all layers

·Characteristics of hot air dryer

  1. Layered Drying Capacity: The most prominent feature of multi-layer hot air dryers is their ability to dry multiple layers of material simultaneously. This design significantly increases the drying capacity of the machine, allowing for higher throughput and improved efficiency.
  2. Space Optimization: By utilizing vertical space effectively, multi-layer hot air dryers optimize floor space in production facilities. This is especially beneficial for operations with limited floor space but high drying volume requirements.
  3. Separate Control for Each Layer: These dryers often have individual controls for each drying layer, allowing operators to adjust drying parameters such as temperature, airflow, and residence time independently for different materials or batches. This level of control enhances flexibility and customization.
  4. Gentle Drying: Multi-layer hot air dryers are designed to provide gentle drying conditions, particularly important for sensitive materials. The uniform airflow distribution across layers ensures consistent and gentle drying, minimizing product degradation and preserving quality.
  5. Continuous Operation: Some multi-layer hot air dryers are designed for continuous operation, where materials are fed into one end of the dryer while dried products are discharged from the other end. This continuous process streamlines production and reduces downtime between batches



Technical Data:

ModelLarge sizeMedium sizeSmall size
Total power49.65kw23.2kw10.75kw
Board room materialPolyurethane insulation board(Also can choose rock wool insulation board)
CompressorAir enthalpy increasing valley wheel compressor
Number of fan171619
Number of trays36014496
Number of trolleys1564
Size of trolley0.88*1.2*1.75m0.88*1.2*1.75m0.86*0.81*1.75m
Board room size8*3*2.85m5.6*2.2*2.7m3.3*2*2.2m
Applicable temperature rangeMinus 10℃~43℃
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