Bed structure of boiling swirling fluidized bed

Abstract

The invention discloses a body structure of a boiling rotating fluidized bed, which comprises an outer housing and an air distributor. Due to the coverage of the outer housing and the air distributor, an accommodation chamber of the fluidized bed is formed. The air distributor is like a groove and tilts from the feeding end of the bed body to the discharging end. The air distributor mainly comprises an air distributor bottom board configured in the middle and air distributor sideboards configured on the two sides. A blowing bottom hole communicated with a sectionalized wind box is configured on the air distributor bottom board, and a blowing side hole communicated with the sectionalized wind box is configured on the air distributor sideboard. The air distributor is tooth-shaped or wave-shaped, the blowing bottom hole is configured between the teeth of a tooth-shaped air distributor bottom board or at the wave trough of a wave-shaped air distributor bottom board, and the opening of the blowing bottom hole faces the discharging end of the bed body. The opening of the blowing side hole on the air distributor sideboard faces the air distributor bottom board. The invention has the advantages of simple body structure, smooth bed surface and optimized flow field and can greatly improve the boiling rotating fluidized status. In addition, the invention can reduce more energy consumption.

Description

technical field [0001] The invention relates to a component part of a fluidized bed, in particular to a bed body structure of the fluidized bed. Background technique [0002] The bed structure of the existing boiling swirling fluidized bed is in the shape of an inverted trapezoidal shallow groove (see Chinese patent documents such as CN101629775A, CN101709913A, CN101708493A), and is inclined from front to back. Elbow gas injectors arranged in staggered rows, and multiple rows of gas injectors with cone heads arranged in staggered rows are arranged on the concave plane in the middle. Collect and rise to generate swirling flow, showing boiling swirling fluidization state, so as to achieve the purpose of moderately reducing the humidity of solid particles on the fluidized bed. However, the surface of the existing fluidized bed body is equipped with various protruding injectors, which leads to unevenness of the bed surface of the fluidized bed. Although the fluidized movement o...

AI Technical Summary

Problems solved by technology

However, the surface of the existing fluidized bed body is provided with various protruding injectors, which leads to unevenness of the bed surface of the fluidized bed. Although the fluidized movement of the material layer can be realized, the movement resistance at the bottom of the boiling layer is relatively large. , there is a dead corner of material storage in the low concave, which is easy to cause the gas injection hole to be blocked, and the structure of the whole fluidized bed body is complicated, and the preparation cost and maintenance cost are high

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