After many efforts to improve, the flash dryer has been optimized in terms of structure and has become more concise and easy to use. The optimized structure is smaller in size, which can achieve ultra-large capacity with ultra-low energy consumption, and at the same time, the drying method in the micro-negative pressure environment is boldly adopted, which effectively eliminates the phenomenon of dust flying. These improvements have led to an increasing use of flash dryers.
In addition to the common type of rotary flash chamber structure, there are also various forms of flash dryers on the market. Among them, it is an effective method to distinguish and select according to the structural form of the rotary flash chamber. The common structural forms of rotary flash chambers are mainly as follows:
The first is a large cone structure, the lower annular bottom gap communicates with the air collection chamber, and the rotating blades at the lower part of the dispersion device go directly to the annular gap.
The second is to make the annular bottom gap into an adjustable form. This form of dryer generally adopts positive pressure operation and is suitable for drying highly viscous materials. The inside of the air collection chamber is generally a volute structure, so that the hot air entering the rotary flash crushing section is evenly distributed.
The third is cylindrical and air dispensing in the form of a wind deflector. All measures taken are to avoid equalizing dead ends.
When choosing a flash dryer, we can choose a suitable structure form of the flash chamber according to the nature of the material, the output requirements and the operating environment, so as to achieve the best drying effect.