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A packing sheet for extracting bromine by air blowing method, high-efficiency packing and its preparation method and application

A technology of air blowing and packing sheets, applied in separation methods, chemical instruments and methods, bromine, etc., can solve the problem of unsatisfactory mass transfer effect of V-shaped wave peaks and troughs, poor lateral diffusion ability of ruled surface, and large pressure drop of packing layers To achieve the effect of increasing lateral diffusion capacity, improving gas-liquid mass transfer efficiency, and reducing packing resistance

Active Publication Date: 2022-05-06
自然资源部天津海水淡化与综合利用研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the unsatisfactory V-shaped wave peak and trough mass transfer effect of the plate corrugated structured packing in the prior art, the poor lateral diffusion ability of the straight grain surface, the wall flow between the structured packing and the tower wall, and the pressure drop of the packing layer. Oversize and other problems, and provide a high-efficiency packing for bromine extraction by air blowing method

Method used

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  • A packing sheet for extracting bromine by air blowing method, high-efficiency packing and its preparation method and application
  • A packing sheet for extracting bromine by air blowing method, high-efficiency packing and its preparation method and application
  • A packing sheet for extracting bromine by air blowing method, high-efficiency packing and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A kind of packing sheet m8 for extracting bromine by air blowing method, the surface of the packing sheet m8 is pressed with fish-scale diversion grooves distributed in a matrix, and each said fish-scale diversion groove is composed of a plurality of arc-shaped grooves m1 with decreasing lengths Composition, a fan-shaped opening m2 is formed between adjacent fish-scale diversion grooves, and the packing sheet m8 presses the sinusoidal large wave pattern m3 in a 45° direction (the peak of the sinusoidal large wave pattern m3 forms The angle between the slant line or the trough formed by the slant line and the side length of the packing sheet m8 is 45°,) makes the section of the packing sheet m8 sinusoidal, and the crests and troughs of the large wave pattern m3 pass through the The connection line formed by the fan-shaped opening m2.

[0056] The surface of the packing sheet m8 (which can be made of metal or non-metal) is pressed with fish-scale diversion grooves. When t...

Embodiment 2

[0060] A kind of high-efficiency filler for bromine extraction by air blowing method, comprising a reinforcement ring and a plurality of rectangular packing sheets m8 as described in embodiment 1 fixed in parallel in the reinforcement ring, wherein:

[0061] The reinforcing ring includes a circular fixed ring m4 and tongues m5 that are evenly distributed on the top of the fixed ring m4 and can be folded outwards to fit the tower wall. A circular through hole is formed on the fixed ring m4 m6; and the adjacent packing sheets m8 in the fixed ring m4 are stacked at 90° according to the large wave pattern m3.

[0062] The upper part of the fixed ring m4 is provided with a number of tongues m5 that can adjust the valgus angle. After the assembly in the tower is completed, the tongues m5 can be manually adjusted to make them completely fit the tower wall and guide the raw material liquid flowing down the tower wall. The backfill layer reduces the wall flow effect; the fixed ring m4 ...

Embodiment 3

[0067] The preparation method of bromine extracting bromine as described in embodiment 1, may further comprise the steps:

[0068] Step 1, using non-metallic materials to extrude on a hot-melt extruder to form a planar structure sheet;

[0069] Step 2, using a pressing model to hot-press on the surface of the planar structural sheet to form fish-scale diversion grooves;

[0070] Step 3, after cooling, use a puncher to punch holes in the designated positions to form fan-shaped openings m2;

[0071] Step 4, heating and softening the planar structure sheet obtained in step 3, pressing it with a pressure roller to form a wave structure sheet with sinusoidal large wave pattern m3;

[0072] Step 5, water cooling and shaping;

[0073] Step 6, cutting the large corrugated structural sheet according to the required length to form the packing sheet m8.

[0074] The non-metallic material can be polyethylene resin or polypropylene resin.

[0075] The preparation method of the high-eff...

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Abstract

The invention discloses a packing sheet for extracting bromine by an air blowing method, a high-efficiency packing and a preparation method and application thereof. The fish-scale pattern diversion groove is composed of a plurality of arc-shaped grooves with decreasing lengths, a fan-shaped opening is formed between the adjacent fish-scale pattern diversion grooves, and the packing sheet is pressed with a large sinusoidal wave pattern in the direction of 45°. The section of the packing sheet is made into a sinusoidal shape, and the peaks and troughs of the large corrugations all pass through the connecting lines formed by the fan-shaped openings. The high-efficiency packing includes a reinforcing ring and a plurality of rectangular packing sheets fixed in parallel in the reinforcing ring. The high-efficiency packing can effectively improve the blowing rate of bromine extraction by air blowing method.

Description

technical field [0001] The invention relates to the technical field of bromine extraction, in particular to a packing sheet for extracting bromine by an air blowing method, a high-efficiency packing and a preparation method and application thereof. Background technique [0002] Bromine is widely used in pesticide, medicine, petroleum, fuel and other industries, and is one of the basic chemical raw materials for the production of flame retardants, biocides and photosensitive materials. At present, the domestic industrialized bromine extraction technology is mainly based on the air blowing method, and its key process is the blowing-absorption process, and the main equipment involved includes the blowing tower, the absorption tower and the foam catcher. [0003] The process of this process is to inject the bromine-containing raw material liquid (sea water or brine) from the top of the blowing tower, and countercurrently contact with a large amount of air entering from the lower...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14C01B7/09
CPCB01D53/1418C01B7/096B01D2252/10
Inventor 柴澍靖张琦刘伟吴丹王泽江于筱禺黄西平
Owner 自然资源部天津海水淡化与综合利用研究所
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