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Compound material sleeve-type filler

A composite material and sleeve technology, used in gas treatment, dispersed particle separation, membrane technology, etc., can solve the problems of high cost, poor surface wettability, limited liquid gradient flow range, etc. The effect of increasing the rate and facilitating the implementation

Pending Publication Date: 2019-08-13
苏州仕净科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] From the shape of the packing, from the earliest Raschig rings to the later saddle packings, to Pall rings, Nat rings, stepped rings, etc., these forms of packing are all single-layer structures, so the liquid can only flow in a single layer. The outer surface and inner surface of the layer packing play a wetting role, and there is a large space inside the annular packing that cannot be used reasonably, so the gradient flow range of the liquid is limited, and the utilization efficiency of the overall space is not high
[0004] From the perspective of filler material, it can be divided into plastic filler, ceramic filler and metal filler. Among them, plastic filler is light in weight, cheap, has good toughness, impact resistance, and is not fragile, but its surface wettability is poor; ceramic filler Filling has good corrosion resistance, low price, and good wettability, but fragility and brittleness are the main factors restricting its development; metal filler has high impact resistance, and can withstand high temperature, high pressure, and high impact environments. It is used under the environment, and the surface wettability is good, but it is not anti-corrosion, and the cost is high
In short, the fillers of each material only have their own properties, and their comprehensive processing capabilities are insufficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] When polyethylene plastic is used as the outer ring body 1 and inner ring body material of this embodiment, the absorption efficiency of the filler is analyzed by the absorption and purification experiment of NOx in the flue gas. The specific content is as follows:

[0047] (1) This embodiment uses laboratory simulated gas as the gas to be processed, the gas flow rate is 450 mL / min, and NO is 280 mg / m 3 , NO 2 The content is 20mg / m 3 , At a constant temperature of 26°C, the gas enters the small ozone oxidation chamber for oxidation reaction, and after the oxidation reaction is completed, the gas is passed into the laboratory small absorption tower;

[0048] (2) The main component of the gas after the previous oxidation reaction is NO 2 , Which also contains a relatively small amount of unoxidized NO. The denitrification efficiency obtained after the spray absorption in the absorption tower is about 93%, and the NOx content in the outlet flue gas is ≤11.7mg / m 3 .

Embodiment 2

[0050] When stainless steel is used as the outer ring body 1 and inner ring body material of this embodiment, the absorption efficiency of the filler is analyzed by the absorption and purification experiment of NOx in the flue gas. The details are as follows:

[0051] (1) This embodiment uses laboratory simulated gas as the gas to be processed, the gas flow rate is 450 mL / min, and NO is 280 mg / m 3 , NO 2 The content is 20mg / m 3 , At a constant temperature of 26°C, the gas enters the small ozone oxidation chamber for oxidation reaction, and after the oxidation reaction is completed, the gas is passed into the laboratory small absorption tower;

[0052] (2) The main component of the gas after the previous oxidation reaction is NO 2 , Which also contains a relatively small amount of unoxidized NO, the denitration efficiency obtained after the absorption tower spray absorption is about 92%, and the NOx content in the outlet flue gas ≤11.9mg / m 3 .

Embodiment 3

[0054] When a stainless steel material is used as the outer ring body 1 of this embodiment, and polyethylene plastic is used as the inner ring body 2 of this embodiment, the absorption efficiency of the filler is analyzed by the absorption and purification experiment of NOx in the flue gas. The details are as follows:

[0055] (1) This embodiment uses laboratory simulated gas as the gas to be processed, the gas flow rate is 450 mL / min, and NO is 280 mg / m 3 , NO 2 The content is 20mg / m 3 At a constant temperature of 26°C, the gas enters the small ozone oxidation chamber for oxidation reaction. After the oxidation reaction is completed, the gas is passed into the laboratory small absorption tower.

[0056] (2) The main component of the gas after the previous oxidation reaction is NO 2 , Which also contains a relatively small amount of unoxidized NO, the denitration efficiency obtained after the absorption tower sprays and absorbs is about 95%, and the NOx content in the outlet flue gas...

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Abstract

The invention relates to a compound material sleeve-type filler. The filler comprises an outer ring body, an inner core body arranged in the outer ring body, a connection part connected between the outer ring body and the inner core body, and a first flue gas channel formed between the outer ring body and the inner core body. The compound material sleeve-type filler overcomes the deficiency that according to filler on the present market, the specific surface area is inversely proportional to the porosity rate, is convenient to manufacture and the advantages of a large specific surface area anda large porosity rate, the specific surface area is in direct proportion to the porosity rate, and when the specific surface area is increased, the porosity rate is increased; when the inside and outside of a sleeve structure adopt two materials, the inner polyethylene plastic achieves biological membrane adhesiveness and is good in corrosion resistance, and the external material is good in stainless steel mechanical performance and resistance to corrosion.

Description

Technical field [0001] The invention relates to the field of chemical packing tower flue gas treatment, in particular to a composite material sleeve type packing. Background technique [0002] With the rapid development of the country’s economy and the improvement of people’s living standards, industrial waste gas emissions have also been increasing year by year. At present, most of the industrial waste gas prevention and control are sprayed by packed towers to absorb harmful gases. The filler is used as the basic component of gas and liquid contact and mass transfer. The liquid flows from top to bottom in a film form on the surface of the filler, and the gas flows in a continuous phase from bottom to top with the liquid in a directional flow. Mass transfer and heat transfer, so the structure of the filler determines the absorption efficiency. [0003] From the perspective of the shape of the packing, from the earliest Raschig ring to the later rectangular saddle packing, to Pall ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18
CPCB01D53/18B01D2258/0283
Inventor 董仕宏吴倩倩任超洋何文
Owner 苏州仕净科技股份有限公司
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