Chemical organic waste gas treatment device

Abstract

The utility model discloses a chemical organic waste gas treatment device, which relates to the technical field of tail gas treatment and comprises an adsorption box body, the adsorption box body is provided with an air inlet and an air outlet, the air inlet can be connected and communicated with a gas outlet pipeline of a reaction tower, and filter cotton is respectively arranged at the air inlet and the air outlet in the adsorption box body. A plurality of activated carbon adsorption layers are uniformly arranged between the two pieces of filter cotton. The chemical organic waste gas treatment device provided by the utility model can be used for further treating waste gas and reducing environmental pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a chemical organic waste gas treatment device. Background Art

[0002] The most common treatment device in waste gas treatment is the reaction tower. The reaction tower usually uses a spray device to spray absorbent. After spraying, the absorbent droplets are formed to absorb the waste gas in the industrial waste gas. At present, the spray reaction device of the reaction tower is mostly set inside the reaction tower. The absorbent is sprayed from the top of the reaction tower, and the waste gas is introduced from the bottom of the reaction tower. The two meet, mix, and react chemically, thereby purifying the industrial waste gas; however, the existing reaction tower has the following problems: the waste gas has a short journey in the reaction tower, that is, the reaction time between the waste gas and the absorbent is short, and the waste gas and the absorbent are not mixed sufficiently, and it is difficult to react completely. The waste gas is discharged without reacting, which makes the industrial tail gas emission substandard, and further causes environmental pollution. Utility Model Content

[0003] The purpose of the utility model is to provide a chemical organic waste gas treatment device to solve the problems existing in the above-mentioned prior art, and to further treat the waste gas to reduce environmental pollution.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a chemical organic waste gas treatment device, comprising an adsorption box body, wherein the adsorption box body has an air inlet and an air outlet, the air inlet can be connected and communicated with a reaction tower air outlet pipeline, a filter cotton is arranged at the air inlet and the air outlet inside the adsorption box body, and a plurality of activated carbon adsorption layers are evenly arranged between two of the filter cottons.

[0006] Preferably, a fixing frame is provided inside the adsorption box at the air inlet and the air outlet, and the filter cotton is fixedly arranged on the fixing frame.

[0007] Preferably, the fixing frame is fixedly connected to the inside of the adsorption box by bolts.

[0008] Preferably, each of the activated carbon adsorption layers comprises two layers of drawer bodies arranged in sequence from top to bottom, the interior of the drawer bodies is filled with activated carbon, and the drawer bodies are fixedly connected to the interior of the adsorption box by a fixing device.

[0009] Preferably, the fixing device includes a bottom plate and two clamping plates fixedly connected to both ends of the bottom plate, a clamping groove is opened on the inner wall of the adsorption box, the clamping plate can be movably connected in the clamping groove, and a fixing member can fix the drawer body to the bottom plate.

[0010] Preferably, the fixing member is a bolt.

[0011] Preferably, the outer bottom of the adsorption box is fixedly provided with supporting feet.

[0012] Compared with the prior art, the utility model has achieved the following technical effects:

[0013] The chemical organic waste gas treatment device provided by the utility model is connected to the gas outlet pipeline of the reaction tower. The waste gas discharged from the reaction tower can enter the adsorption box. The waste gas is further adsorbed and treated by the filter cotton and the activated carbon adsorption layer, which can prevent the waste gas that does not meet the standards from being directly discharged into the atmosphere, thereby reducing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a front view of the chemical organic waste gas treatment device provided by the utility model;

[0016] Figure 2 A top view of the chemical organic waste gas treatment device provided by the utility model;

[0017] Figure 3 A side view of the chemical organic waste gas treatment device provided by the utility model;

[0018] Figure 4 A schematic diagram of the structure of the fixing device provided by the utility model;

[0019] In the figure: 1-adsorption box; 11-air inlet; 12-air outlet; 13-support foot; 2-filter cotton; 3-activated carbon adsorption layer; 31-drawer body; 4-fixing device; 41-card slot; 42-card plate; 43-bottom plate; 44-fixing part. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model aims to provide a chemical organic waste gas treatment device to solve the problems existing in the prior art, and can further treat the waste gas to reduce environmental pollution.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The utility model provides a chemical organic waste gas treatment device, such as Figures 1 to 4 As shown, in this embodiment, it includes an adsorption box 1, an air inlet 11 is opened on the left side of the adsorption box 1, and an air outlet 12 is opened on the right side. The air inlet 11 can be connected and communicated with the reaction tower outlet pipeline. A filter cotton 2 is arranged at the air inlet 11 and the air outlet 12 inside the adsorption box 1. The filter cotton 2 is arranged at the air inlet 11, which can effectively perform preliminary filtering on impurities or particulate matter in the exhaust gas, thereby reducing the adsorption burden of activated carbon. The filter cotton 2 is arranged at the air outlet 12, which can effectively prevent impurities or particulate matter from being discharged into the atmosphere. The filter cotton 2 is preferably a non-woven filter cotton, and a plurality of activated carbon adsorption layers 3 are evenly arranged between the two filter cottons 2.

[0024] A fixed frame is provided inside the adsorption box 1 at the air inlet 11 and the air outlet 12, and the filter cotton 2 is fixedly provided on the fixed frame. The fixed frame can be removed. After the filter cotton 2 has been used for a period of time, a large amount of impurities will adhere to the filter cotton 2, affecting its filtering effect. The filter cotton 2 is replaced every six months. The setting of the fixed frame can facilitate the replacement of the filter cotton 2.

[0025] The fixing frame is fixedly connected to the inside of the adsorption box 1 by bolts, and the fixing frame can also be fixed by using structures such as clamps according to needs.

[0026] Each activated carbon adsorption layer 3 includes two layers of drawer bodies 31 arranged in sequence from top to bottom. The drawer bodies 31 are filled with block honeycomb activated carbon. The drawer bodies 31 are fixedly connected to the adsorption box 1 through a fixing device 4, and the drawer bodies 31 can be disassembled.

[0027] The fixing device 4 includes a bottom plate 43 and two card plates 42 fixedly connected to the two ends of the bottom plate 43. A card slot 41 is opened on the inner wall of the adsorption box 1. The card plate 42 is slidably connected to the card slot 41 and can reciprocate along the extension direction of the card slot 41. A fixing member 44 can fix the drawer body 31 on the bottom plate 43. The fixing member 44 is a bolt. When replacing the activated carbon, open the front of the adsorption box 1, then remove the fixing member 44, pull out the drawer body 31, and replace it with new activated carbon.

[0028] A support leg 13 is welded to the outer bottom of the adsorption box 1 for supporting the adsorption box 1 .

[0029] The chemical organic waste gas treatment device provided by the utility model uses an organic acid to treat the activated carbon. The acid treatment can increase the number of surface active sites of the activated carbon and improve its adsorption performance. The hydrogen released during the acid treatment can spontaneously form nanopores, thereby improving the porosity and adsorption capacity of the activated carbon. In addition, the acid treatment can also enhance the electrostatic effect on the surface of the activated carbon, which can better adsorb polar substances. The use of organic amine catalysts (alkaline) can improve the waste gas treatment effect of the activated carbon after acid treatment, and can also extend the service life of the activated carbon.

[0030] Activated carbon is activated carbon fiber (ACF), which is the third generation of activated carbon products after powdered and granular activated carbon. Its most notable feature is its developed specific surface area (1000m 2 / g~3000m 2 / g) and abundant micropores, the volume of which accounts for more than 90% of the total pore volume, and the diameter of which is about 10Angstrom (1Angstrom=0.1nm), so it has a strong adsorption capacity.

[0031] The organic acid is ethylenediaminetetraacetic acid (DETA). DETA has four dissociable H groups. The hydrogen on the carboxylic acid of DETA is highly acidic and is easy to dissociate. The organic amine catalyst is highly alkaline and is easy to accept protons.

[0032] The activated carbon acid treatment steps are: immerse the activated carbon in 0.1 mol / L DETA for 24 hours, then take the activated carbon out of the acid solution, wash it repeatedly with water until the pH value is close to neutral, and dry it.

[0033] The tail gas treatment process of the adsorption box 1 provided by the utility model is as follows: the adsorption box 1 is installed behind the reaction tower, a pressure gauge is installed on the upper part of the reaction tower, and the organic waste gas is pressurized by the fan after being treated by the reaction tower and enters the adsorption box 1, and the organic components in the waste gas are adsorbed when penetrating the activated carbon adsorption layer 3, and the purified gas is discharged from the air outlet 12 of the adsorption box 1. As the filtering condition continues, the organic waste gas molecules accumulated in the activated carbon will accumulate more and more, which will increase the running resistance of the equipment accordingly. In order to ensure the normal operation of the system, the upper limit of the pressure of the reaction tower should be maintained within the range of 1000-1200Pa. When it exceeds this limited range, the automatic controller will issue a command to prompt the replacement of the activated carbon, and the treated waste gas can meet the emission standards.

[0034] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A chemical organic waste gas treatment device, characterized in that: It includes an adsorption box body, which has an air inlet and an air outlet, the air inlet can be connected and communicated with the reaction tower outlet pipeline, a filter cotton is arranged at the air inlet and the air outlet inside the adsorption box body, and a plurality of activated carbon adsorption layers are evenly arranged between two of the filter cottons; each of the activated carbon adsorption layers includes a drawer body, the drawer body is filled with activated carbon, and the drawer body is fixedly connected to the inside of the adsorption box body by a fixing device; the fixing device includes a bottom plate and two clamping plates fixedly connected to both ends of the bottom plate, a clamping groove is opened on the inner wall of the adsorption box, the clamping plate can be movably connected to the clamping groove, and a fixing piece can fix the drawer body to the bottom plate.

2. A chemical organic waste gas treatment device according to claim 1, characterized in that: A fixing frame is arranged inside the adsorption box at the air inlet and the air outlet, and the filter cotton is fixedly arranged on the fixing frame.

3. A chemical organic waste gas treatment device according to claim 2, characterized in that: The fixing frame is fixedly connected to the inside of the adsorption box by bolts.

4. The chemical organic waste gas treatment device according to claim 1, characterized in that: Each of the activated carbon adsorption layers comprises two layers of drawer bodies which are arranged sequentially from top to bottom.

5. A chemical organic waste gas treatment device according to claim 4, characterized in that: The fixing member is a bolt.

6. A chemical organic waste gas treatment device according to claim 1, characterized in that: The outer bottom of the adsorption box body is fixedly provided with supporting feet.

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