METHOD AND APPARATUS FOR THE TREATMENT OF FINE-GRAINED MATERIAL IN A SPOUTED BED

摘要

The invention relates to a method and an associated apparatus for treating fine-grained material in a spouted bed. The aim of the invention is to devise a method and design an associated apparatus for treating fine-grained material in a spouted bed which eliminate the drawbacks of the prior art, allow different process conditions in the process chamber to be adjusted in a regulated manner, and has a simple and inexpensive structure. The disclosed method is characterized in that a nearly circular gas flow of the fluidizer is generated in the process chamber (5) by means of an external annular gap (7) lying on the y-z plane, the diameter of said nearly circular gas flow expanding outward in the direction of the x axis inside the process chamber (5), and a nearly circular gas flow of the fluidizer is generated by means of an internal annular gap (8) lying on the y-z plane, the diameter of said nearly circular gas flow expanding inward within the process chamber (5). The disclosed apparatus is characterized in that a displacement member (2) and an annular central contour (9) are centrally disposed in the lower region of the process chamber (5) in such a way that an internal annular gap (7) is formed between the displacement member (2) and the inner contour of the annular central contour (9), while an external annular gap (8) is formed between the outer contour of the annular central contour (9) and the lower outer edge of the process chamber (5) in order to feed the fluidizer.