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Material groove baseplate of fluidized bed

A technology of material trough and fluidized bed, which is applied in the field of fluidized bed, can solve the problem of material particles falling into the bottom of the fluidized bed, and achieve the effects of avoiding falling, uniform air intake and full mixing

Inactive Publication Date: 2017-03-22
创志科技(江苏)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that the material particles will continuously fall into the bottom of the fluidized bed when the material particles are placed on the sieve plate provided with diversion grooves, the present invention provides a fluidized bed material The bottom plate of the trough, when the material particles are placed on the plate body, the trajectory of the material particles is changed through the inclined diversion groove, thereby changing the force direction of the material particles entering the diversion groove, so that the material particles are in the inclined diversion groove The extrusion force at the entrance increases, the friction between the material particles increases, and the surface of the material particles is rough, the material particles will overlap at the entrance of the diversion groove, so that the material will not fall from the diversion groove bottom of fluidized bed

Method used

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  • Material groove baseplate of fluidized bed
  • Material groove baseplate of fluidized bed
  • Material groove baseplate of fluidized bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 As shown in the figure, a bottom plate of a fluidized bed material tank includes a plate body 1, and a number of guide grooves 2 are arranged on the plate body 1, so that a rotating airflow can be formed when the wind passes through the guide grooves from bottom to top. The guide grooves 2 are The inclined structure can make the material form a bridge phenomenon at the guide groove 2 and prevent the material particles from falling from the guide groove 2.

[0027] Preferably, the included angle formed between the plane where the guide groove 2 is located and the plane where the plate body 1 is located is 1°-40°.

[0028] The included angle is 1°, 5°, 10°, 20°, 30° or 40°.

[0029] Further, the vertical distance between the mutually parallel upper and lower surfaces formed by the guide groove 2 (ie, the thickness of the guide groove 2 ) is 0.1-6 mm. The thickness of the guide groove 2 can be limited to ensure that the bridging phenomenon can be formed whe...

Embodiment 2

[0034] like figure 2 As shown in the figure, a bottom plate of a fluidized bed material tank includes a plate body 1, and a number of guide grooves 2 are arranged on the plate body 1, so that an airflow cyclone can be formed when the wind passes through the guide grooves from bottom to top, and the guide grooves 2 are It is an inclined structure that can enable the material to form a bridge phenomenon at the diversion groove 2 and prevent the material particles from falling from the diversion groove 2. The diversion groove 2 includes a long diversion groove 21 and a short diversion groove 22. The long diversion groove 21 includes the inner end 211 of the long groove close to the axis of the plate body 1 and the outer end 212 of the long groove away from the axis of the plate body 1, and the end of the inner end 211 of the long groove is located on the circle a3 with the axis of the plate body 1 as the center; The short groove 22 is arranged between two adjacent long guide gro...

Embodiment 3

[0040] Basically the same as the technical solution of Embodiment 2, the difference is: as image 3 As shown, several partitions 23 are arranged in the long guide groove 21 and the short guide groove 22 , and the long guide groove 21 and the short guide groove 22 are divided into several partition grooves 24 by the partition plates 23 .

[0041] The extension line of the guide groove 21 is tangent to the circle a3 or passes through the center of the circle a3.

[0042]Preferably, the extension line of the long guide groove 21 passes through the center of the circle a3 or is tangent to the circle a3, and the extension line of the short guide groove 22 passes through the center of the circle b4 or is tangent to the circle b4.

[0043] The long guide grooves 21 and the short guide grooves 22 are evenly distributed on the plate body 1 with the axis of the plate body 1 as the center. on the circumference of the center.

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Abstract

The invention relates to the technical field of fluidized beds, in particular to a material groove baseplate of a fluidized bed. The material groove baseplate comprises a plate body, wherein a plurality of diversion grooves are formed in the plate body, a rotating gas flow can be formed when wind passes through the diversion grooves from bottom to top, the diversion grooves each are of an inclined structure, which is capable of enabling materials to form a bridging phenomenon in the diversion grooves, and preventing material granules from falling off from the diversion grooves. A motion track of the material granules is changed by the inclined diversion grooves, thus the stress direction of the material granules entering the diversion grooves is further changed, so that extrusion force of the material granules at entrances of the inclined diversion grooves is enhanced, friction force among the material granules is increased, furthermore, surfaces of the material granules are rough surfaces, therefore the material granules are overlapped at the entrances of the diversion grooves, and the materials are prevented from falling to the bottom of the fluidized bed from the diversion grooves.

Description

technical field [0001] The invention relates to the technical field of fluidized beds, in particular to a bottom plate of a material groove of a fluidized bed. Background technique [0002] Fluidized bed granulation technology, also known as one-step granulation, is a granulation technology that completes powder mixing, granulation, and drying steps in a closed container at one time, and is widely used in pharmaceutical, chemical and other industries. In the 1980s, my country successively introduced fluidized bed granulation technology from foreign companies. After further structural improvement in the later period, fluidized bed has become a multi-purpose process that combines drying, granulation, solution coating, and powder coating. equipment. At present, the fluidized bed granulator has three processes: top spray, bottom spray and side spray to meet different process requirements such as granulation, coating and multi-layer coating. [0003] When the fluidized bed mixes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J2/16
CPCB01J2/16
Inventor 贺志真张俊
Owner 创志科技(江苏)股份有限公司