Internally heated fluidized bed dryer - Haomai drying

Internal heating fluidized bed dryer is a new drying technology developed on the basis of conventional fluidized bed drying and indirect heating drying. It has the characteristics of energy saving, high efficiency, small floor area, environmental protection and high efficiency.

Overview of internally heated fluidized bed dryer:

Internally heated fluidized bed dryer is a new drying technology developed on the basis of conventional fluidized bed drying and indirect heating drying. It immerses the tubular heat exchanger in the fluidized drying material, and the heat required for material dehydration is provided by the buried tube heat exchanger and the fluidized hot air respectively. The equipment is widely used for drying and cooling refined salt, soda ash, sodium percarbonate and sodium sulfate.

Working principle of internally heated fluidized bed dryer:

The material with moisture content less than 10% enters the drying area of the internal heating fluidized bed and contacts with the hot air above the air distributor. On the one hand, the hot air keeps the material in normal fluidization state, on the other hand, it carries out heat exchange with the material, heats the material and evaporates the moisture, so as to reduce the moisture content to 0.2%. Then it enters the cooling bed and contacts with the filtered cooling air with the same temperature outside to keep it fluidized The cooling capacity is provided by the cooling air and the built-in heat exchanger of the internal heating fluidized bed to cool the materials. The qualified materials are discharged from the fluidized bed through the star shaped unloader. The dust containing gas is discharged into the atmosphere by induced draft fan after being purified by cyclone and scrubber.

Performance characteristics of internally heated fluidized bed dryer:

1. Energy saving and high efficiency. Since most of the heat is provided by the built-in heat exchanger with heat exchange efficiency of about 90%, hot air is mainly used as the power medium to ensure normal fluidization, which greatly reduces the amount of hot air required by the conventional fluidized bed dryer. Therefore, the power consumption and exhaust heat loss of the system are correspondingly reduced, and the drying efficiency is high.

2. It covers a small area and saves system investment.

3. Because the operating gas velocity of the inner heated fluidized bed system is lower than that of the conventional fluidized bed, the material entrainment and lifting loss in the fluidized bed can be effectively reduced, and the load of the dust removal system is correspondingly reduced, and the environmental protection pressure is reduced.

4. Special air distribution board can prevent leakage.

Application scope of internal heating fluidized bed dryer:

Adipic acid, soda ash, refined salt, sodium percarbonate, mirabilite, potassium chloride, potassium nitrate, ammonium chloride, polystyrene, ABS plastic, acrylonitrile, butadiene, styrene terpolymer, ammonium nitrate, ammonium sulfate, calcium chloride, calcium formate, calcium glucose, calcium hypochlorite, calcium sulfate, casein, cellulose derivatives, citric acid, coal, copper sulfate, crystalline sugar, diammonium phosphate Dicalcium phosphate, pelleted porcelain clay, granulated fertilizer, hydroquinone, ferric sulfate, lactose, latex resin, lysine, magnesium sulfate, pentaerythritol, drugs, ethylene, propylene, potassium carbonate, potassium chlorate, potassium phosphate, potassium tartrate, steel chips, polyvinyl chloride, sewage sludge, sodium bicarbonate, sodium bromide, sodium carbonate, sodium chlorate, sodium formate, soybean, soybean products, starch Starch derivatives, tartaric acid, terephthalic acid, titanium dioxide, urea, vitamins, etc.

Changzhou Haomai drying Engineering Co., Ltd. is a manufacturer specializing in the production of internal heating fluidized bed dryer, according to your different actual situation to design and optimize the scheme parameters. The company has stock and prototype throughout the year, can provide the test, welcome your call to discuss!