Eco-Efficient Fluidized Bed

Fluidized bed drying is the aplication of fluidization principle in drying operation.After entering the drying chamber,the granular materialsfall on the distribution plate.Hot air is sent from the bottom of the perforated plate to make it evenly dispersed and contact with thematerials.The wind speed is selected to make the gas pass through the granular layer.At this time,materials such as boiling water jumpin the bed,and at the same time increase the gas-solid contact area,which is easy to evaporate in the water of the materials.

After air is filtered,it enters the air heater for heating,and after it hascertain heat energy,it enters the air distribution plate to contact withthe materials added into the bed.By adjusting the wind speed,thematerial can be suspended in hot air.At this time,the moisture in thematerial vaporizes due to heat absorption and is taken away by theflowing air,and the temperature of the air drops due to heat transfer!When the material is dried,part of the fine powder is taken out of theboiling chamber by hot air,and the upper part of the boiling chamberis provided with an expansion body,and the material taken out of thedrying chamber returns to the drying chamber due to the decrease ofwind speed in the expansion body.In order to adapt to differentmaterials,a high-pressure bag dust removal device can be addedinside the enlarged body.The material yield of this equipment is over99.5%!

Boiling dryer,also known as fluidized bed,has been continuously improved and improved since its application for more than 30 years.It iswidely used in pharmaceutical,chemical,food and grain processing industries,such as drying and dehumidifying raw materials,tablettinggranules,traditional Chinese medicine granules,food and beverage granules,corn germ,feed,plastic resin,citric acid and other powderyand granular materials.The suitable material particle size is generally 0.1-06 mm,and the optimal particle size is 0.5-3mm..

• Flexible operation,which can realize continuous production of materials and control batch production of materials.
• The residence time of materials in the dryer can be controlled,and the water content of products can be changed almost infinitely. Easy to operate,two people can control the operation of the whole set of equipment.
• It has high heat and mass transfer rate.
• Low equipment cost,few moving parts and convenient maintenance!

Note:The drying capacity in the table is taken as an example,in which the initial moisture content is 20%,the final moisture and the inlet air temperature is 130 C.The drying capacity of other materials shall be subject to the specific drying conditions. content is 5%,

After being heated and purified,the air is guided from the lower part by the induced draft fan and passes through the perforated screen ofthe hopper.In the working room,fluidization is formed by stiring and negative pressure,water is quickly evaporated and taken away withexhaust air,and materials are quickly dried.

• The fluidized bed has a circular structure to avoid dead ends.
• The hopper is set with stirring to avoid wet materials from reunion and channeling when drying.
• Dumping and unloading are adopted,which is convenient,rapid and thorough,and an automaticfeeding and discharging system can also be designed as required.
• Closed negative pressure operation,air flow is fltered.
• It is easy to operate and clean,and it is an ideal equipment meeting the requirements of GMP.
• The drying speed is fast and the temperature is uniform,and the drying time of each batch is generally 20-30 minutes.

• It can satisfy the drying and mass continuous production of vegetables and materials such as roots,stems and leaves,such as strips,blocks,sheets and large granules,and at the same time,it can retain the nutitional components and colors of the products to themaximum extent.
• Typical dried materials are:garlic slices,pumpkin,carrot,konjac,yam,bamboo shoots,horseradish,onion,apple,etc.