Circulative impinging stream dryer

Assimilating positive and negative the experiences obtained in the past, the author of this book has developed the Circulative Impinging Stream Dryer , an IS device suitable for powdery and/or granular materials [11, 82]. A test with quasi-industrial equipment on a scale of 1000 tones per year has exhibited good performance, and practical application may be expected in the near future. 

On the basis of a thorough understanding of the properties of gas-continuous impinging streams, including its advantages and disadvantages, the circulative impinging stream dryer (CISD) was developed and patented by the author of the present book [11, 103]. Primary tests on a quasi industrial scale have yielded satisfactory results, and it can be expected to be applied industrially in the near future. 

In view of the fact that most materials needing to be dried are powdery or granular solids, the development of the circulative impinging stream dryer is aimed at this kind of material. 

The structure of the circulative impinging stream dryer developed is sketched in Fig. 6.13, in which the flow configuration of vertical two impinging streams is employed. The equipment consists of three basic parts mounted co-axially the body, the upper and the lower accelerating tubes. The body is of a conical/cylindrical shape with different diameters. The lower-middle part of the body is a cylinder with a relatively... 

Figure 6.13 A brief view of the circulative impinging stream dryer (CISD).

Huang, Kai, Liu, Huayan and Wu, Yuan (2001). An investigation on drying in the circulative impinging stream dryer. J. Chem. Eng. of Chinese Universities. 15(3) 78-80 (in Chinese). 

Wu, Yuan, Wuhan Institute of Chemical Technology (2000). The circulative impinging stream dryer. Chinese paten, ZL00230326.4. 

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