Bottom spraying and air intake control structure of fluidized bed

Abstract

The invention discloses a bottom spraying and air intake control structure of a fluidized bed. The bottom spraying and air intake control structure comprises a flow guide cylinder, an air stream distribution plate, a cavity baffle and two air intake machines. The invention designs a brand new air intake structure, so that the intake air in the flow guide cylinder and intake air outside are separated; individual control can be realized; air speed difference controllable inside and outside the flow guide cylinder is formed, and the fluidized bed of materials can be controlled well, so that a controllable up-down circulation coating is formed. The particular implementation mode is that different aperture ratios and pore diameters are set for air stream distribution plates inside and outside the flow guide cylinder, so that the interior of the flow guide cylinder has relatively high aperture ratio and relatively low pore diameter, and thus relatively high air speed exists in the flow guide cylinder; air speeds inside and outside the flow guide cylinder can be controlled infinitely, so that the favorable fluidization state and the final coating effect are ensured.

Description

technical field [0001] The invention relates to a bottom spray air inlet control structure of a fluidized bed, belonging to the technical field of fluidized bed coating. Background technique [0002] At present, the fluidized bed is the most commonly used coating technology, and the air flow distribution plate of the current fluidized bed bottom spray is a whole. , for a small test machine, the fluidizing air source is enough to generate the wind speed difference inside and outside the draft tube, but it is far from enough for a pilot test or even a large production equipment. [0003] In response to the above problems, we designed a new type of air intake control structure, which improves the wind speed difference inside and outside the guide tube and realizes more convenient regulation. [0004] At present, there is no domestic manufacturer producing such structural equipment. Contents of the invention [0005] The technical problem to be solved by the present inventio...

AI Technical Summary

Problems solved by technology

[0002] At present, the fluidized bed is the most commonly used coating technology, and the current air flow distribution plate of the bottom spray of the fluidized bed is a whole. , for a small test machine, the fluidizing air source is enough to generate the wind speed difference inside and outside the guide tube, but it is far from enough for a pilot test or even a large production equipment

[0004] At present, there is no domestic manufacturer of such structural equipment

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