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Magnetball distributing plate for fluidized bed

A magnetic ball and distribution plate technology, applied in chemical/physical processes, chemical instruments and methods, etc., can solve problems such as the inability of gas to be evenly distributed, and achieve the effect of easy production, simple principle, and uneven distribution.

Inactive Publication Date: 2012-08-15
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem that the gas cannot be evenly distributed after passing through the distribution plate, and to provide a new type of distribution plate formed by regular arrangement of spherical magnetic balls

Method used

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  • Magnetball distributing plate for fluidized bed
  • Magnetball distributing plate for fluidized bed
  • Magnetball distributing plate for fluidized bed

Examples

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Embodiment Construction

[0029] One of the specific examples of the present invention model example 1, as attached figure 1 As shown, all components and reactors are numbered, in order:

[0030] A magnetic ball 1 with a diameter of 1 cm, a magnetic ball 2 with a diameter of 0.5 cm, a magnetic ball 3 with a diameter of 0.25 cm, a fluidized bed reactor 4, a support plate 5, and a channel 6 for the support plate.

[0031] Using the regular arrangement of magnetic balls of different sizes, different sizes of magnetic balls can be selected according to the needs. In this example 1 model, a layer of magnetic balls 1 with a diameter of 1 cm is selected on the bottom layer, and two layers with a diameter of 0.5 cm are tiled on the top. The magnetic ball 2 is covered with three layers of magnetic balls 3 with a diameter of 0.25 cm. When the fluidization reaction is in progress, the gas or liquid passes through the plate channel 6, and then passes through a layer of magnetic balls 1 with a diameter of 1 cm, and...

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Abstract

The invention provides a magnetball distributing plate for a fluidized bed, belonging to the technical field of a fluidized bed reactor. The device comprises a distributing plate which is formed by the means that magnetballs are regularly arranged on a support frame at the bottom of a reactor bed, the magnetballs are regularly and tightly arranged and are fully distributed on the support frame at the bottom of the reactor bed, and the magnetballs are distributed into monolayer or multilayer. The magnetic mutual attraction force between every two magnetballs is not less than 10N. Gas or liquid can be evenly and stably distributed after passing through the device, the magnetball distributing plate can be widely used in the technical fields such as gas-solid reaction, liquid-solid reaction, catalytic reaction and the like, and the problem that the gas can not be evenly distributed after passing through the distributing plate can be overcome. The regular magnetballs are taken as the distributing plate, so that the gas can be completely and evenly distributed after passing through the distributing plate, and the reaction time that the gas passes through a fluidized bed can be effectively controlled, therefore, the reaction efficiency can be improved, and the yield of the product can be improved.

Description

technical field [0001] The invention belongs to the technical field of fluidized bed reactors, and specifically relates to the design of a fluidized bed magnetic ball distribution plate. After passing through the device, the gas or liquid can be distributed evenly and stably. There are a wide range of applications in the technical field. Background technique [0002] When the gas-solid fluidized gas passes through the bed, it will flow through the bed in two parts. One part of the gas will pass through the distribution plate at a speed close to the critical fluidization and flow through the dense phase area; the other part of the gas will flow through the distribution plate. The velocity of the gas exceeds the critical fluidization velocity, and at this time, the gas passes through the dense phase region in the state of bubbles. The rising velocity of the bubbles can exceed the critical fluidization velocity by an order of magnitude. Therefore, when this high-speed gas flui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/44
Inventor 王义智李钒梁向峰安震涛张然姚传好杨帆徐梦迪
Owner BEIJING UNIV OF TECH
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