Plane material otter board stuffing type cross flow type hypergravity swinging bed and uses thereof

A high-gravity rotating bed, packed technology, applied in the direction of using liquid separation agent, dispersed particle separation, fractionation, etc., can solve the problem of limiting the surface area of ​​the high-gravity rotating bed droplet heat transfer, mass transfer and dust removal efficiency, etc., to achieve open Large porosity, high-efficiency trapping, and enhanced mass and heat transfer

Inactive Publication Date: 2008-09-03
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the further improvement of the droplet surface area and its heat transfer, mass transfer and dust removal efficiency of the multi-stage atomization high-gravity rotating bed is limited.

Method used

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  • Plane material otter board stuffing type cross flow type hypergravity swinging bed and uses thereof
  • Plane material otter board stuffing type cross flow type hypergravity swinging bed and uses thereof
  • Plane material otter board stuffing type cross flow type hypergravity swinging bed and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 A structural form of the cross-flow high-gravity rotary bed of the spaced plane screen packing type of the present invention is shown. Such as figure 1 As shown, the cross-flow supergravity rotary bed of the spaced planar screen packing type includes a housing 8, a rotating shaft 9, a flat screen 7, a motor 1 and a rotary demister 4, and the rotary demister 4 is fixed by welding or bolts. Way is fixed on the rotating shaft 9. The rotating shaft 9 is located in the center of the cylindrical housing 8 and is connected with the motor 1. The lower end of the housing 8 is provided with an air inlet 2 and a liquid outlet 10 respectively, and the upper end is provided with an air outlet 5; the rotating shaft located in the housing is made of porous stainless steel seamless Tubes, or seamless tubes made of titanium can also be used. The rotating shaft 9 is a hollow structure, the upper end is provided with a liquid inlet 6, and the rotating shaft 9 is provided with ...

Embodiment 2

[0029] Different from Embodiment 1, the present embodiment has three planar screens 9 in total. The planar screens are made of PP as a skeleton, and PE screens are arranged on them; The flat screen is fixed on the drum by welding. After testing, compared with the ordinary multi-stage atomized rotary bed, the total heat transfer coefficient of this kind of enhanced multi-stage atomized high-gravity rotary bed with spaced apart plane screens is increased by 4%, and the total mass transfer coefficient is improved. 3%, dust removal efficiency increased by 6%.

Embodiment 3

[0031] Different from Embodiment 1, the present embodiment has 3 flat screens in total, and the flat screen is a porous screen perpendicular to the axial direction and horizontal, such as Figure 2A As shown, the flat screen is a screen with two layers of stainless steel wire mesh fixed on a stainless steel structure. The flat screen plates are installed at intervals on the rotating shaft. The rotating shaft is a porous seamless stainless steel pipe, the distance between the flat screens is 200mm, the outer diameter of the flat screens is 300mm, and the flat screens are fixed on the ribs of the drum by welding. After testing, compared with the ordinary multi-stage atomized rotary bed, the total heat transfer coefficient of the enhanced multi-stage atomized high-gravity rotary bed with spaced apart planar screens is increased by 4.5%, and the total mass transfer coefficient is improved. 4%, dust removal efficiency increased by 6.5%.

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Abstract

The invention discloses a planar otter board packing type crossflow super-gravity rotating packed bed, as well as the application thereof. The rotating packed bed comprises a rotating packed bed shell, a motor and a rotating shaft; the rotating shaft positioned in the shell is of a hollow structure, the middle of the rotating shaft is inserted with a middle water pipe with an opening, the water pipe is provided with a liquid inlet, and small holes are distributed on the rotating shaft. Planar otter boards are fixed on the rotating shaft, and are horizontally arranged, and axial distances are kept among the otter boards. The planar otter board packing type crossflow rotating packed bed can achieve the mass transfer and the heat transfer between gas and liquid, and improved dust removal efficiency, and can avoid the high loss of gas resistance , so as to obtain higher heat transfer and mass transfer coefficients and higher dust removal efficiency under the lower gas resistance, thereby having the value of being widely spread and applied in the industry.

Description

technical field [0001] The invention relates to an intensified rotary bed, in particular to a cross-flow supergravity rotary bed with spaced planar screens as fillers and its application in enhancing heat transfer, mass transfer and dust removal. Background technique [0002] There are many forms of existing high-gravity rotating beds, among which concentric circular thin-plate packing rotating bed gas-liquid mass transfer reactor (patent number is ZL95214611.8), plate-type rotating film gas-liquid mass transfer reaction device (patent number is ZL95106281. 6), gas axial flow rotary packed bed gas-liquid heat and mass transfer device (patent No. ZL97212054.8), etc. [0003] In the invention patent cross-flow type rotating bed supergravity field device 95107423.7, the impeller on the rotor, the annular packing layer and the defogging section are sequentially installed in the cylindrical rotating shell, fixedly connected with the shaft, and rotate together. There are holes ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/30B01D53/18B01D47/08
Inventor 潘朝群
Owner SOUTH CHINA UNIV OF TECH
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