Vibration fluidized bed dryer use and main features

When the granular material is dried in a common fluidized bed dryer, the material particles should be uniform and have certain specifications, otherwise the groove flow and the stagnation zone will be formed. When the particle size distribution is wide, the entrainment is serious, and the moisture is easy to agglomerate when the humidity is large. And because of the particle back-mixing, the particle residence time distribution range is large, and the particle moisture content is uneven, thus limiting the use range of the ordinary fluidized bed dryer. In order to overcome its shortcomings, a lot of research has been done abroad to improve the performance of fluidized bed dryers. Especially in today's energy shortage, the mass transfer heat transfer process is strengthened, energy conservation and quality are improved, and the fluidized bed dryer has wide adaptability and economic rationality. The vibrating fluidized bed dryer has great significance. The vibrating fluidized bed dryer has the advantages of advanced design, reliable quality, wide application range, remarkable energy conservation and the ability to dry materials that are difficult to dry on other dryers. Therefore, the vibrating fluidized bed dryer is widely welcomed by various industries.

Principle and structure of vibrating fluidized bed dryer

The vibrating fluidized bed dryer is driven by a vibration motor to vibrate the machine, and the material jumps forward under the action of the exciting force in a given direction, while the vibrating fluidized bed dries the hot air input at the bottom of the machine to make the material fluid. In the state, the material particles are in full contact with the hot air to achieve the desired drying effect. The material enters from the mouth of the vibrating fluidized bed dryer. The material on the vibrating bed of the vibrating fluidized bed dryer is in orthogonal contact with the hot air passing through the lower part of the vibrating trough. The humid air is led out by the induced air, and the dry material is discharged from the discharge port. discharge.

Vibration fluidized bed dryer use and main features

Vibrating fluidized bed dryer is widely used in the drying, cooling and humidification of powdery and granular materials in industries such as chemical industry, light industry, medicine, food, plastics, grain and oil, slag, salt, and tobacco. Used for dry cooling, cooling and humidification operations. Its characteristics are as follows:

1. Vibrating fluidized bed dryer is driven by vibration motor, which has stable operation, low noise, long service life and convenient maintenance.

2. The vibration of the vibrating fluidized bed dryer makes the material easy to reach the fluidized state and increases the effective heat transfer coefficient, so the thermal efficiency is high. The bed temperature distribution is uniform and there is no local overheating. Uniform fluidization, no dead angles and blow through. Vibration plays a role in transportation and is also conducive to energy conservation. It can save 30-60% energy compared to general drying equipment.

3. The thickness of the material layer and the moving speed and amplitude of the machine can be adjusted steplessly. The adjustability is good and the speed is wide.

4, the material surface damage is small, can be used for the drying of fragile materials, material particles can also be used when irregular, does not affect the effect.

5. The vibrating fluidized bed dryer adopts a fully enclosed structure, which effectively prevents cross-contamination of materials from the outside, cleans the environment and improves working conditions.

6. Vibration promotes fluidization, reducing air demand and reducing particle entrainment rate