Vibrating fluidized bed dryer, this high-efficiency drying equipment has rapidly emerged in the chemical, light industry, medicine, food and other industries, and gradually expanded to granulation, calcination, cooling and other fields. The wide range of applications of its fluidized bed dryers has proven its excellent performance and practicability.
When using a vibratory fluidized bed dryer to process materials, the countercurrent contact and vigorous agitation of the gas-solid phases make the solid particles suspended in the drying medium with a large contact surface area. This feature makes the VCD dryer excellent in terms of heat transfer, mass transfer, volumetric drying strength and thermal efficiency. What's more worth mentioning is that its transmission mechanism is not in contact with the material, which effectively avoids equipment wear and impurities, which is undoubtedly a big advantage for industries such as pharmaceuticals that pursue high purity.
The advantages of a vibratory fluidized bed dryer don't stop there. It is suitable for the drying of agglutination-free granular materials in a wide range of particle sizes, from 30 m to 6 mm. The equipment structure is simple and the production capacity is flexible, from tens of kilograms per hour to hundreds of kilograms per hour. At the same time, the thermal efficiency is considerable, with a thermal efficiency of about 70% for the removal of unbound water and between 30% and 50% for the removal of mixed water.
In practical applications, the residence time of the material in the vibratory fluidized bed dryer can be flexibly adjusted by the rational design of the fluidized bed structure. In order to improve the uniformity of material drying, fluidized beds of various structures are also used.
It is worth mentioning that although vibrating fluidized bed dryers are similar in name to fluidized bed boiling granulators, their working principles and application ranges are very different. The vibrating fluidized bed dryer mainly shakes the material horizontally through vibration to achieve uniform drying. The fluidized bed boiling granulator uses the annular fluidization state to mix the raw material powder particles with the heating air to form ideal, uniform microporous spherical particles.
Vibratory fluidized bed dryers are used in a wide range of applications, including chemical, food, dehydrated vegetables and pharmaceuticals. The vibration source is driven by a vibrating motor, which is easy to maintain and has a long service life. The material is heated evenly during the drying process, with little damage to its effect and energy savings. For some fragile materials, vibratory fluidized bed dryer is undoubtedly the best choice.
At the same time, the fluidized bed boiling granulator is more suitable for granulation work in the pharmaceutical industry, food industry and other fields. It is worth noting that the vibrating fluidized bed dryer not only has the function of granulation, but also can carry out drying, which is more comprehensive. The granulator, on the other hand, is limited to the granulation function.