1. Jet air stream belt dryer

　　Jet air belt dryer is mainly used for fiber, gypsum board, carton board, pulp mold, coating drying, etc. It is also suitable for drying sheet materials and some special materials. The hot air of this equipment is sprayed down or up and down at the same time to the material on the conveyor belt with slit flow or hole beam flow. Because the jet airflow is up to 15m/s or more, the heat transfer coefficient is large and the drying speed is fast. When the equipment is used for airtight materials, the air jet from the top will still return to the top, and the air jet from the bottom will return to the bottom to participate in the circulation. It has strong penetrability for the airflow of air-permeable materials and diffusibility inside the material. The heat source used can be steam, electricity, hot blast stove, etc.

　　2. Multi-layer belt dryer

　　The multi-layer belt dryer is a new type of dryer developed on the basis of the DW belt dryer. It is suitable for drying flake, strip, and block materials such as dehydrated vegetables, Chinese herbal medicines, aquatic products, and chemical products. dry. The machine is composed of conveying device, drying room, frame, air conveying device, dehumidifying device, waste heat recovery device and electric control cabinet. It adopts stainless steel mesh belt, multi-layer reciprocating conveying, uniform spreading thickness, stepless adjustment of mesh belt running speed; layered air intake, sectioned humidification and drying; reasonable structure, small floor area, high productivity, and significant energy-saving effect. Realize the advantages of cold discharging.

　　3. Single-stage belt dryer

　　The dried material of the single-stage belt dryer is evenly distributed on the conveyor belt from the feeding end through the feeding device. The motor drives the conveyor belt made of perforated stainless steel sheet (or mesh plate) through the gearbox. The air circulating fan is drawn in from the outside through the air filter, heated by the heater, and blown up vertically from the lower part of the conveyor belt through the distribution plate. The material comes into contact with hot air and begins to dry. At this time, the moisture in the material vaporizes, the air is humidified, and the temperature drops. Part of the humid air is discharged out of the box. Part of it is mixed with fresh air before the circulation fan sucks in the air and recirculates. In order to dehydrate the material layer up and down evenly, the air is blown down after blowing up. The dried product is discharged from the outlet end after being directly contacted and cooled by outside air or other low-temperature media.

　　4. Vacuum belt dryer

　　The advantage of the vacuum belt dryer is continuous feeding and discharging at both ends of the machine body. The ingredients and discharging parts can be set in a clean room. The entire drying process is completely enclosed and does not contact the external environment. It conforms to GMP Requirements. The vacuum belt dryer has a wide range of applications, and it can be applied to most natural plant extracts. Especially for materials with high viscosity, easy agglomeration, thermoplasticity, and heat sensitivity, and materials that are not suitable for or cannot be dried by spray drying or vacuum oven drying. Vacuum belt dryer is a good choice. The dryer can perform complete CIP in-place cleaning, and it is very convenient to replace between batch and batch, product and product, which reduces labor intensity, reduces process links, ensures product quality, and improves economic benefits.