The WYHG type circulating belt dryer consists of several drying units and a cooling unit. Each drying unit section includes a circulating fan, a heating device, a fresh air supplement system, a shared exhaust emission system, and an exhaust gas reuse system. The process flow is as follows: after the material is discharged from the previous process, it is poured into the feeding hopper on the feeding platform, and after being evenly distributed by the uniform device, it is brought into the dryer by a conveyor belt. The speed of the belt can be adjusted; Cold air enters the centrifugal fan from the fresh air supplement port, is heated by a finned heat exchanger (or mixed with high-temperature hot air provided by a hot air stove), and enters the dryer through a special structure to accelerate and penetrate the material layer, fully contacting the wet material for heat and mass exchange. The moisture in the material is evaporated into water vapor, which is carried away with the hot air. Part of the wet air is discharged through the dehumidification port, and the other part enters the circulation for use; Due to the varying moisture content of the materials in each unit, the ratio of moisture discharge to circulating air also differs for each unit; During the entire drying process, the humidity of the hot air is also different; The moisture content of the material in the early stage of drying is relatively high, and a higher hot air temperature can be used; The moisture content of the material in the later stage of drying is relatively low, and a lower hot air temperature can be used to greatly improve the drying efficiency.
characteristic
The drying effect can be achieved by adjusting the dehumidification amount, heating temperature, material residence time, and feeding speed, and the equipment configuration is flexible;
Can use mesh belt flushing system and material cooling system, with better adaptability;
● Heat recycling to save energy;
The air distribution device ensures a more uniform distribution of hot air and higher drying intensity, ensuring consistent product quality and fast drying;
The heat source can be matched with steam, thermal oil, electricity, or coal-fired (oil) hot blast stoves.
Purpose:
The WYHG type circulating belt dryer is a commonly used continuous drying equipment, which can be widely used in industries such as dehydrated vegetables, fruits, stir fried goods, seafood, convenience foods, agricultural and sideline products, pharmaceuticals, chemicals, building materials, electronics, etc. It is particularly suitable for drying sheet, strip, and granular materials with good breathability. For cake like paste materials, they can also be dried after being formed by granulator or extrusion mechanism.
Typical materials
Dehydrated vegetables, white melon seeds, pine nuts, sunflower seeds, almonds, kidney beans and other seed kernels, five spice melon seeds, pellet feed, monosodium glutamate, chicken essence, coconut milk, organic pigments, synthetic rubber, acrylic fiber, pharmaceuticals, medicinal herbs, small wooden products, electronic components.