Fluidized fluidized bed bed structure that can perform winnowing and drying at the same time

Abstract

The invention discloses a bed body structure of a fluidized fluidized bed capable of air separation and drying simultaneously, which comprises an outer casing and an air distribution plate, and the outer casing and the air distribution plate are covered to form a fluidized bed cavity; the groove-shaped air distribution The board is inclined from the feed end of the bed body to the discharge end. The air distribution board is mainly composed of the air distribution bottom board in the middle and the air distribution side boards on both sides. The chamber is connected to the ventilation bottom hole and the ventilation side hole. The air distribution bottom plate is composed of more than three sections of air distribution group boards connected front and back; The air nozzles facing the discharge end are arranged on the holes; the air caps with uniform holes are arranged on the other air distribution group boards, and the tails of the other air distribution group boards are equipped with discharge ports; the ventilation side of the air distribution side boards The hole is provided with a side air nozzle facing directly above the air distribution bottom plate. The invention has a simple structure, and can simultaneously realize the moderate drying of the moisture of the wet granular material and the classification and separation by winnowing according to the particle size.

Description

technical field [0001] The invention relates to a bed body structure and components of a fluidized bed, in particular to a wind separation and drying bed structure of a fluidized fluidized bed. Background technique [0002] At present, there are quite a lot of equipment and patent documents related to winnowing and drying. Since the same equipment is required to have the function of moderate drying of wet granular materials and the function of particle size winnowing and grading separation, the existing technology can meet this application effect and technical requirements. Equipment is not yet available. [0003] Most of the existing air separation drying equipment can achieve the effect of moderate drying of water, but it is extremely rare to achieve the effect of particle size air separation and fractionation at the same time; even if individual equipment or devices can simultaneously achieve the effect of particle size air separation and fractionation, but this The effe...

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Problems solved by technology

[0003] Most of the existing air separation drying equipment can achieve the effect of moderate drying of water, but it is extremely rare to achieve the effect of particle size air separation and fractionation at the same time; even if individual equipment or devices can simultaneously achieve the effect of particle size air separation and fractionation, but this The effect of such equipment to achieve moderate drying of moisture is not ideal, and the amount of dust separation is too large, especially after being used in the coking coal preparation process, it brings many problems such as coal quality segregation and coke oven gas purification.

It is also because those skilled in the art know very little about the mechanism of wet granular material particle size component and winnowing fractionation and separation, do not grasp it thoroughly, and do not study deeply, which causes the existing winnowing drying equipment not only to have poor structural design Reasonable, but not fully functional

[0004] Previously, there have been patent documents reporting the bed structure of full-boiling swirling fluidized bed, but the existing bed structure of full-boiling swirling fluidized bed can only be applied to the moderate drying of wet granular materials, and does not have particle size winnowing and fractionation at all. function, the application in industrial practice is subject to certain restrictions

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