The DW series multi-layer belt dryer is suitable for the large-scale production of difficult-to-dry materials with a low drying rate. The equipment has a compact structure, a small footprint, simple operation, convenient maintenance and stable operation. It can be designed into different hot air circulation drying forms according to the drying characteristics of the material. It is an extension and improvement of the hot air circulation oven and is widely used in medical, chemicals, food, packaging and other fields. With the advancement of enterprise technology and the improvement of product technology content, multi-layer belt dryers have the ability to meet large-scale production, diversification, centralized control, and continuous production. It has the advantages of high efficiency, energy-saving and easy management.

The belt dryer is suitable to dry and mass continuous production of fruits and vegetables such as roots, stems, leaf strips, blocks, flakes, large particles, etc., while retaining the nutrients and colors of the products to the utmost extent.

The typical dry materials are: garlic slices, desiccated coconut, mango slices, banana slices, berry fruits, peach, apricot, pumpkin, carrots, konjac, yam, bamboo shoots, horseradish, onions, apple slices, etc.

The material is evenly spread on the mesh belt by the feeder, which is driven by the transmission device to move in the dryer. The mesh belt generally made of 12-60 mesh stainless steel wire mesh, the dryer is composed of several units, each unit circulates the hot air independently, the hot air passes through the mesh belt covered with materials from bottom to top or from top to bottom to complete the heat transfer and take away the moisture of the materials, part of the exhaust gas is discharged by a special exhaust fan, and the exhaust gas is controlled by a regulating valve. The mesh belt moves slowly, the running speed can be adjusted freely according to the drying temperature of the material, and the dried product continuously falls into the receiver. The upper and lower circulation units can be flexibly equipped according to user needs, and the number of units can also be customized according to requirements.

The vegetable dehydration dryer is composed of a feeder, drying bed, heat exchanger and moisture exhaust fan and other main components. When the dryer is working, the cold air is heated by the heat exchanger, and the scientific and reasonable circulation method is adopted to make the hot air flow through the dried material on the bed surface for uniform heat and mass exchange. The hot air flows in each unit of the machine body is circulated under the action of the circulating fan, and finally exhaust the air with low temperature and high humidity, and complete the whole drying process smoothly and efficiently.

1. Continuous feeding and continuous discharging under vacuum conditions; The automation, continuity and pipelineization of the drying process
2. The drying process temperature is adjustable at 20-150℃, The drying time is adjustable from 20 to 80 minutes, product yield reaches more than 99%.
3. Adopt PLC automatic control system, greatly reduce labor costs, reduced the links of product pollution caused by complex drying processes.
4. The drying area, air pressure, air volume, material residence time, material feeding speed and drying temperature can be adjusted according to the characteristics and quality requirements of vegetables to obtain a good drying effect.
5. The equipment configuration is flexible, and the mesh belt washing system and the material cooling system can be used.
6. The unique air distribution device makes the hot air distribution more even and ensures the consistency of product quality.
7. The heat source can be equipped with steam, heat transfer oil, electricity or coal (oil) hot blast stove.
8. Most of the air is recycled, highly energy-saving.