Since the birth of the fluidized bed drying process, it has been widely used in food, chemical, pharmaceutical, paper, plastics, tobacco and other industries for drying or cooling powder, granular, filamentous materials. Compared with fixed fluidization Bed, because of excellent fluidization effect, low energy consumption, smallest material wear and other outstanding advantages, vibration fluidized bed is being favored by more and more users. Especially in recent years, with the progress of vibration fluidized bed technology, with its unique advantages in the sugar and food industry, it`s used more and more widely.
Working Principle of Vibrating Fluidized Bed
The system consists of vibrating conveying & fluidizing bed as the main equipment. New fresh air from a fresh air room is heated or cooled then been blow into the lower chamber of the fluidizing bed and go up through the mesh panel, and materials to be dried or cooled been fed into the vibrating bed, under the action of vibration and air flow the material is fully loosened and fluidized and move from the inlet to the outlet. Because the material is in fully fluidized station , air flow can pass through every grain and take moisture away or heat or cool the material at high efficiency. Exhausted air with dust and moisture is led into a cyclone (wet or dry)dust collector and then been discharged into the atmosphere through a fan.
The vibrating fluidized bed is divided into two types according to its vibration actuator, namely ZLZ type with vibrating motors as vibration actuator and ZLL type driven by motor driven eccentric shaft and elastic connecting rod. Both of these two types of vibrating fluidized bed can control the material walking speed by adjusting the vibration amplitude and vibration frequency, so as to control the residence time of the material in the fluidized bed to achieve the best dry or cooling effect and reduce the energy Consumption, improve economic efficiency.
Advantages of a vibrating fluidized bed
1. Suitable to a wide range of materials of different particle size and gravity.
2. No damage to materials.
3. Drying and cooling in one is possible.
4. Smooth material flow and fully fluidization results in excellent drying and cooling efficiency.
5. Very easy control of temperature and moisture content.
Technical Data
Note: The above parameters are for reference only, specific parameters and the system total power will be determined according to the kinds of material, the material moisture content, temperature, and atmosphere temperature, our engineers will provide you with the best solution according to your request to sample test results.
