Experimental waste gas treatment device

Abstract

The utility model provides an experimental waste gas treatment device, which comprises a first container, a second container, a third container and a fourth container, the first container is provided with a first accommodating cavity, a first gas inlet, a first opening and a first gas outlet, and the first gas inlet is used for conveying waste gas into the first accommodating cavity; the spraying structure is arranged at the first opening, the spraying structure is provided with a plurality of spraying openings, and the spraying structure is used for providing a solution to react with the waste gas; the second container is provided with a second containing cavity, a second gas inlet and a second gas outlet, and the second containing cavity is used for storing a solution to react with the waste gas; one end of the first connecting pipe is communicated with the first air outlet, the other end of the first connecting pipe is communicated with the second air inlet, and the other end of the first connecting pipe is used for extending into the solution in the second containing cavity; the third container is provided with a third containing cavity, a third gas inlet and a third gas outlet, the third gas inlet and the third gas outlet are both communicated with the third containing cavity, the third containing cavity is used for storing an adsorption part, and the adsorption part is used for adsorbing waste gas.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental waste gas treatment devices, in particular to an experimental waste gas treatment device. Background Art

[0002] Ziegler-Natta catalysts are the most widely used in the industrial production of polyolefins. Their preparation requires large amounts of titanium tetrachloride, often in significant excess. Consequently, during the polyolefin catalyst production process, after the catalyst solids are separated and precipitated, a large amount of titanium-containing mother liquor is produced. This mother liquor, in addition to unreacted titanium tetrachloride, may also contain hydrocarbon organic solvents, halogenated titanium alkoxides, or titanium alkoxides. This also generates large amounts of waste gas, primarily titanium tetrachloride and acidic gases. Directly discharging these waste gases into the atmosphere not only pollutes the environment and corrodes equipment, but also poses a health hazard.

[0003] In the existing technology, waste gas generated during the experiment is usually removed by burning the waste. However, laboratory waste gas treatment devices based on combustion methods have high energy consumption, which will increase the energy consumption cost of the laboratory and may limit their use in some situations where energy supply is limited. For some waste gases containing non-combustible components, auxiliary fuel needs to be added to ensure the combustion effect, which further increases the cost and complexity of operation. In addition, the combustion process may produce some new pollutants such as nitrogen oxides. These pollutants need to be further treated, otherwise they will cause harm to the environment, which undoubtedly increases the difficulty and cost of waste gas treatment. Utility Model Content

[0004] The utility model provides an experimental waste gas treatment device to solve the problem of high difficulty in waste gas treatment in the prior art.

[0005] The utility model provides an experimental waste gas treatment device, experimental waste gas treatment device includes: first container, first container has first containing chamber, first air inlet, first opening and first gas outlet, first air inlet, first opening and first gas outlet all are linked with first containing chamber, and first air inlet is used for conveying waste gas to first containing chamber, spray structure sets up at first opening, and spray structure has a plurality of spray nozzles, a plurality of spray nozzles all are linked with first containing chamber, and spray structure is used to provide solution to react with waste gas, second container, second container has second containing chamber, second air inlet and second gas outlet, second air inlet and second gas outlet all are linked with second containing chamber, and second containing chamber is used for storing solution to react with waste gas, first connecting pipe, one end of first connecting pipe is linked with first gas outlet, and the other end of first connecting pipe is linked with second air inlet, and the other end of first connecting pipe is used to extend to the solution in second containing chamber, third container, third container has third containing chamber, third air inlet and third gas outlet, third air inlet and third gas outlet all are linked with third containing chamber, and third containing chamber is used for storing adsorption accessory, and adsorption accessory is used for adsorbing waste gas.

[0006] Further, the second container also has a second opening, the second opening is communicated with the second containing chamber, and the experimental waste gas treatment device further comprises: a detection meter arranged at the second opening.

[0007] Further, the experimental waste gas treatment device further comprises: a first support frame for supporting the first container; and a first clamping structure, one end of the first clamping structure is detachably connected with the support frame, and the other end of the first clamping structure is used for clamping the first opening.

[0008] Further, the first clamping structure comprises: a first connecting rod; a first clamping piece fixed on the first connecting rod; a second clamping piece rotatably arranged on the first connecting rod; and a first adjusting structure arranged between the first clamping piece and the second clamping piece, the first adjusting structure being capable of adjusting the relative distance between the first clamping piece and the second clamping piece, and the first clamping piece and the second clamping piece cooperating to clamp the first opening.

[0009] Further, the experimental waste gas treatment device further comprises a first sealing piece, the first sealing piece is sleeved on the outside of the first connecting pipe and the first gas outlet.

[0010] Further, the spray structure comprises: a receiving portion arranged at the first opening, the receiving portion having a receiving cavity; and a nozzle arranged in the first containing chamber, the nozzle being communicated with the receiving cavity, the nozzle having a plurality of spray nozzles.

[0011] Further, the diameter of the spray nozzle gradually decreases along the direction close to the nozzle.

[0012] Further, the nozzle comprises an arc-shaped structure, and the plurality of spray nozzles are distributed on the arc-shaped structure.

[0013] Furthermore, the third accommodating chamber includes a first chamber, a second chamber and a third chamber connected in sequence, the diameter of the second chamber is smaller than the diameters of the first chamber and the third chamber, the first chamber is located above the third chamber, the third air inlet is connected to the third chamber, the third air outlet is connected to the first chamber, and the adsorbent is activated carbon.

[0014] Furthermore, the experimental exhaust gas treatment device also includes: a second connecting pipe, one end of which is connected to the first air inlet; an air supply pipe, one end of which is connected to the other end of the second connecting pipe, and the air supply pipe is used to transport exhaust gas; and a delivery pipe, which is connected to the air supply pipe and is used to transport nitrogen.

[0015] By applying the technical solution of the present invention, the waste gas enters the first holding chamber through the first air inlet, and the spray structure can spray the solution through the first opening. The solution can react with the waste gas. At this time, most of the waste gas has been neutralized, and the unreacted waste gas is then passed into the solution in the second holding chamber through the first air outlet and the second air inlet, and the waste gas can react with the solution in the second holding chamber. After that, the unabsorbed waste gas is passed into the third holding chamber through the third air inlet, and the adsorbent can adsorb the waste gas. Such a setting can ensure the full hydrolysis and absorption of the waste gas, so that the waste gas can be discharged safely and environmentally friendly, reducing the pollution of the waste gas to the environment. In addition, in the laboratory, the solution used to react with the waste gas is relatively common and easy to obtain, which reduces the operating cost, processing cost and operating difficulty of the staff. Therefore, the above-mentioned device has a simple structure, is easy to operate, and is suitable for use in the laboratory. At the same time, the treated waste liquid can be subjected to secondary treatment, avoiding secondary pollution to the environment and achieving the purpose of saving costs and reducing consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 The figure shows a schematic structural diagram of the experimental waste gas treatment device provided by the present invention.

[0018] The above drawings include the following reference numerals:

[0019] 10. First container;

[0020] 11. First accommodating cavity; 12. First air inlet; 13. First opening; 14. First air outlet;

[0021] 20. Spray structure;

[0022] 21. Connecting portion; 22. Nozzle;

[0023] 30. Second container;

[0024] 31. Second accommodating cavity; 32. Second air inlet; 33. Second air outlet; 34. Second opening;

[0025] 40. First connecting pipe;

[0026] 50. Third container;

[0027] 51. The third accommodating chamber;

[0028] 511, first chamber; 512, second chamber; 513, third chamber;

[0029] 52. Third air inlet; 53. Third air outlet;

[0030] 60. Detector;

[0031] 71. First support frame;

[0032] 81. Second support frame;

[0033] 91. Second connecting pipe; 92. Third connecting pipe. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figure 1As shown, an embodiment of the present invention provides an experimental waste gas treatment device, which includes a first container 10, a spray structure 20, a second container 30, a first connecting pipe 40 and a third container 50. The first container 10 has a first accommodating chamber 11, a first air inlet 12, a first opening 13 and a first air outlet 14. The first air inlet 12, the first opening 13 and the first air outlet 14 are all connected to the first accommodating chamber 11. The first air inlet 12 is used to transport waste gas into the first accommodating chamber 11. The spray structure 20 is arranged at the first opening 13. The spray structure 20 has a plurality of spray ports. The plurality of spray ports are all connected to the first accommodating chamber 11. The spray structure 20 is used to provide a solution to react with the waste gas. The second container 30 has a second accommodating chamber 31, a second air inlet 32 ​​and a second air outlet 33. The second air inlet 32 ​​and the second air outlet 33 are both connected to the second accommodating chamber 31. The second accommodating chamber 31 is used to store a solution to react with the waste gas. One end of the first connecting tube 40 is in communication with the first gas outlet 14, and the other end of the first connecting tube 40 is in communication with the second gas inlet 32. The other end of the first connecting tube 40 is configured to extend into the solution within the second accommodating chamber 31. The third container 50 has a third accommodating chamber 51, a third gas inlet 52, and a third gas outlet 53. Both the third gas inlet 52 and the third gas outlet 53 are in communication with the third accommodating chamber 51. The third accommodating chamber 51 is configured to store an adsorbent, which is configured to adsorb exhaust gas.

[0036] By applying the technical solution of the present application, the exhaust gas enters the first holding chamber 11 through the first air inlet 12, and the spray structure 20 can spray the solution through the first opening 13. The solution can react with the exhaust gas, and at this time, most of the exhaust gas has been neutralized. The unreacted exhaust gas then passes through the first air outlet 14 and the second air inlet 32 ​​into the solution in the second holding chamber 31, and the exhaust gas can react with the solution in the second holding chamber 31. After that, the unabsorbed exhaust gas passes through the third air inlet 52 into the third holding chamber 51, and the adsorbent can adsorb the exhaust gas. Such a setting can ensure the sufficient hydrolysis and absorption of the exhaust gas, so that the exhaust gas can be discharged safely and environmentally friendly, reducing the pollution of the exhaust gas to the environment. In addition, in the laboratory, the solution used to react with the exhaust gas is relatively common and easy to obtain, which reduces the operating cost, processing cost and difficulty of operation for the staff. Therefore, the above-mentioned device has a simple structure, is easy to operate, and is suitable for use in the laboratory. At the same time, the treated waste liquid can be subjected to secondary treatment, avoiding secondary pollution to the environment and achieving the purpose of cost saving and consumption reduction.

[0037] Specifically, in the present application, the solution sprayed by the spraying structure 20 and the solution in the second containing cavity 31 are alkaline solutions, after the waste gas enters the first container 10, the waste gas is subjected to the first alkaline washing by the dilute alkali solution, wherein the TiC14 component in the waste gas is hydrolyzed into Ti(OH)4·H2O and HCl vapor by the dilute alkali solution, and most of the HCl component is neutralized into harmless and non-polluting NaCl and H2O by the dilute alkali solution, a small amount of HCl gas enters the second container 30 and is subjected to secondary neutralization by the dilute alkali solution to achieve the purpose of complete hydrolysis, and then a small amount of component waste gas enters the third container 50 and is discharged into the fume hood after being adsorbed by the adsorption member.

[0038] In the prior art, some experimental waste gas treatment devices directly pass the waste gas into the absorption liquid such as alkaline solution during the treatment of the waste gas. When the waste gas flows upward and fully contacts the absorption liquid, the harmful substances such as acidic components in the waste gas are absorbed by the absorption liquid, so as to achieve the purpose of purifying the waste gas. However, in the above structure, the frequency of replacing the absorption liquid is relatively high in order to ensure the absorption effect.

[0039] However, in the present application, the spraying structure 20 is used to provide the solution, which can increase the contact area between the solution and the waste gas, improve the reaction rate of the solution and the waste gas, and ensure the reaction effect of the solution and the waste gas, so as to reduce the amount of the solution. When the solution in the first containing cavity 11 reaches the setting position, the solution in the first container 10 can be poured out and the waste gas treatment can continue.

[0040] Further, the second container 30 also has a second opening 34 which is in communication with the second containing cavity 31. The experimental waste gas treatment device also comprises a detection meter 60 which is arranged at the second opening 34. In this way, the consumption of the solution can be monitored, and the solution can be added or replaced in time. Meanwhile, the structure is simple and the operation is convenient.

[0041] In the present application, the detection meter 60 is a pH meter.

[0042] Further, in the prior art, some experimental waste gas treatment devices directly pass the waste gas into the adsorption material during the treatment of the waste gas. The adsorption capacity of the adsorption material is limited, and the saturation condition of the adsorption material needs to be monitored frequently. Moreover, the desorption process may cause secondary pollution problem.

[0043] However, the above structure can ensure that the secondary pollution is avoided. In the present application, the detection meter 60 is arranged at the second opening 34, and the value of the detection meter 60 can be checked by the worker at any time, so as to avoid multiple detections and reduce the labor intensity of the worker.

[0044] Specifically, the experimental waste gas treatment device further comprises a first support frame 71 and a first clamping structure. The first support frame 71 is used for supporting the first container 10. One end of the first clamping structure is detachably connected with the first support frame 71, and the other end of the first clamping structure is used for clamping the first opening 13. In this way, the stability of the first container 10 can be ensured, and the first container 10 can be prevented from being tilted, thereby ensuring the stability of the working of the spraying structure 20 and facilitating the neutralization reaction between the waste gas and the solution.

[0045] The experimental waste gas treatment device further comprises a second support frame 81 and a second clamping structure. The second support frame 81 is used for supporting the second container 30. One end of the second clamping structure is detachably connected with the second support frame 81, and the other end of the second clamping structure is used for clamping the second opening 34. In this way, the stability of the second container 30 can be ensured, and the second container 30 can be prevented from being tilted, thereby facilitating the neutralization reaction between the waste gas and the solution in the second containing cavity 31.

[0046] The first clamping structure comprises a first connecting rod, a first clamping piece, a second clamping piece and a first adjusting structure. The first clamping piece is fixed on the first connecting rod. The second clamping piece is rotatably arranged on the first connecting rod. The first adjusting structure is arranged between the first clamping piece and the second clamping piece, and the first adjusting structure can adjust the relative distance between the first clamping piece and the second clamping piece. The first clamping piece and the second clamping piece cooperate to clamp the first opening 13. In this way, after the first opening 13 is placed between the first clamping piece and the second clamping piece, the clamping of the first opening 13 can be realized by adjusting the first adjusting structure. In this way, the first container 10 can be clamped conveniently, and the versatility of the first clamping structure can be improved.

[0047] Further, the first clamping piece is located at one end of the first connecting rod, and the other end of the first connecting rod is detachably arranged on the first support frame 71.

[0048] The second clamping structure comprises a second connecting rod, a third clamping piece, a fourth clamping piece and a second adjusting structure. The third clamping piece is fixed on the second connecting rod. The third clamping piece is rotatably arranged on the second connecting rod. The second adjusting structure is arranged between the third clamping piece and the fourth clamping piece, and the second adjusting structure can adjust the relative distance between the third clamping piece and the fourth clamping piece. The third clamping piece and the fourth clamping piece cooperate to clamp the second opening 34. In this way, after the second opening 34 is placed between the third clamping piece and the fourth clamping piece, the clamping of the second opening 34 can be realized by adjusting the second adjusting structure. In this way, the second container 30 can be clamped conveniently, and the versatility of the second clamping structure can be improved.

[0049] Further, the third clamping piece is located at one end of the second connecting rod, and the other end of the second connecting rod is detachably arranged on the second support frame 81.

[0050] Specifically, the experimental exhaust gas treatment device further includes a first sealing member, which is sleeved on the outside of the first connecting pipe 40 and the first gas outlet 14. This arrangement can prevent exhaust gas leakage, ensure the normal progress of the neutralization reaction, and facilitate assembly.

[0051] Optionally, the first sealing member may be made of rubber.

[0052] The spray structure 20 includes a receiving portion 21 and a nozzle 22. The receiving portion 21 is positioned at the first opening 13 and defines a receiving cavity. The nozzle 22 is positioned within the first accommodating cavity 11 and communicates with the receiving cavity. The nozzle 22 has multiple spray openings. This arrangement facilitates placement of the spray structure 20 and facilitates adding solution to the spray structure 20, resulting in a simple structure and easy operation.

[0053] Furthermore, the diameter of the spray port gradually decreases in the direction close to the nozzle 22. This arrangement facilitates fixing the spray structure 20, prevents the solution from spilling, and improves the reliability of the operation.

[0054] Specifically, the nozzle 22 includes an arc-shaped structure, and multiple spray ports are distributed on the arc-shaped structure. Such an arrangement can ensure uniformity in the spraying of the solution, facilitate the neutralization of the solution and the exhaust gas, and further increase the reaction rate of the solution and the exhaust gas.

[0055] The third accommodating chamber 51 includes a first chamber 511, a second chamber 512, and a third chamber 513, which are connected in sequence. The diameter of the second chamber 512 is smaller than the diameters of the first chamber 511 and the third chamber 513. The first chamber 511 is located above the third chamber 513. The third air inlet 52 is connected to the third chamber 513, and the third air outlet 53 is connected to the first chamber 511. The adsorbent is activated carbon. This arrangement allows the exhaust gas to fully contact the adsorbent during its ascent, facilitating adsorption of the exhaust gas. The diameter of the second chamber 512 is smaller, and the activated carbon cannot pass through the second chamber 512. The staff places the activated carbon separately in the first chamber 511 and the third chamber 513. This arrangement allows the activated carbon in the first chamber 511 or the third chamber 513 to be replaced separately, saving adsorption costs.

[0056] Furthermore, the experimental exhaust gas treatment device also includes a second connecting pipe 91, an air supply pipe, and a delivery pipe. One end of the second connecting pipe 91 is connected to the first air inlet 12. One end of the air supply pipe is connected to the other end of the second connecting pipe 91, and the air supply pipe is used to transport exhaust gas. The delivery pipe is connected to the air supply pipe, and the delivery pipe is used to transport nitrogen. In this arrangement, the exhaust gas is entrained by the slightly positive pressure nitrogen gas into the first receiving chamber 11, preventing the exhaust gas from volatilizing, ensuring stability during the exhaust gas transportation process, and preventing the exhaust gas from polluting the environment.

[0057] Specifically, the experimental exhaust gas treatment device further includes a third connecting pipe 92 , one end of the third connecting pipe 92 is connected to the second air outlet 33 , and the other end of the third connecting pipe 92 is connected to the third air inlet 52 .

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0060] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0061] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial relative descriptors used herein interpreted accordingly.

[0062] In addition, it should be noted that the use of "first", "second", and the like words of distinction do not connote any meaning of importance, but are used solely to differentiate one element from another, and are used in the context of this application without implying any specific order, or order of precedence. Accordingly, a first element that follows an operation can be performed before, after, or at the same time as a second element that precedes the operation.

[0063] The preferred embodiments of the present application have been described above with the purpose of enabling not only the best modes of practicing the application known to the inventors at this time, but also of enabling others skilled in the art to utilize the application in various embodiments and with various modifications as are suited to the particular use contemplated. Therefore, the above description is intended to be illustrative, but not restrictive, of the scope of the present application. All patents and patent applications mentioned herein are incorporated by reference in their entirety.

Claims

1. An experimental exhaust gas treatment device, characterized in that: The experimental exhaust gas treatment device comprises: A first container (10), the first container (10) having a first accommodating chamber (11), a first air inlet (12), a first opening (13) and a first air outlet (14), the first air inlet (12), the first opening (13) and the first air outlet (14) all being in communication with the first accommodating chamber (11), the first air inlet (12) being used for conveying exhaust gas into the first accommodating chamber (11); a spray structure (20) disposed at the first opening (13), the spray structure (20) having a plurality of spray ports, the plurality of spray ports all being in communication with the first accommodating chamber (11), the spray structure (20) being used to provide a solution to react with the exhaust gas; a second container (30), the second container (30) having a second accommodating chamber (31), a second air inlet (32) and a second air outlet (33), the second air inlet (32) and the second air outlet (33) both being in communication with the second accommodating chamber (31), and the second accommodating chamber (31) being used to store a solution for reacting with the exhaust gas; a first connecting tube (40), one end of the first connecting tube (40) being in communication with the first gas outlet (14), the other end of the first connecting tube (40) being in communication with the second gas inlet (32), and the other end of the first connecting tube (40) being configured to extend into the solution in the second accommodating chamber (31); A third container (50), wherein the third container (50) has a third accommodating chamber (51), a third air inlet (52) and a third air outlet (53), wherein the third air inlet (52) and the third air outlet (53) are both connected to the third accommodating chamber (51), and the third accommodating chamber (51) is used to store an adsorption element, and the adsorption element is used to adsorb exhaust gas.

2. The experimental exhaust gas treatment device according to claim 1, characterized in that: The second container (30) further has a second opening (34), and the second opening (34) is communicated with the second accommodating chamber (31). The experimental exhaust gas treatment device further includes: A detector (60) is provided at the second opening (34).

3. The experimental exhaust gas treatment device according to claim 1, characterized in that: The experimental exhaust gas treatment device also includes: a first support frame (71) for supporting the first container (10); A first clamping structure, one end of which is detachably connected to the support frame, and the other end of which is used to clamp the first opening (13).

4. The experimental exhaust gas treatment device according to claim 3, characterized in that: The first clamping structure comprises: a first connecting rod; a first clamping member, fixed on the first connecting rod; a second clamping member rotatably disposed on the first connecting rod; A first adjusting structure is provided between the first clamping member and the second clamping member. The first adjusting structure can adjust the relative distance between the first clamping member and the second clamping member. The first clamping member and the second clamping member cooperate to clamp the first opening (13).

5. The experimental exhaust gas treatment device according to claim 1, characterized in that: The experimental exhaust gas treatment device further comprises a first sealing member, which is sleeved on the outside of the first connecting pipe (40) and the first gas outlet (14).

6. The experimental exhaust gas treatment device according to claim 1, characterized in that: The spray structure (20) comprises: A receiving portion (21) is provided at the first opening (13), and the receiving portion (21) has a receiving cavity; A nozzle (22) is arranged in the first accommodating chamber (11), the nozzle (22) is communicated with the receiving chamber, and the nozzle (22) has a plurality of spray ports.

7. The experimental exhaust gas treatment device according to claim 6, characterized in that: The diameter of the spray port gradually decreases in a direction approaching the nozzle (22).

8. The experimental exhaust gas treatment device according to claim 6, characterized in that: The nozzle (22) comprises an arc-shaped structure, and the plurality of spray ports are distributed on the arc-shaped structure.

9. The experimental exhaust gas treatment device according to claim 1, characterized in that: The third accommodating chamber (51) comprises a first chamber (511), a second chamber (512) and a third chamber (513) which are connected in sequence, the diameter of the second chamber (512) is smaller than the diameters of the first chamber (511) and the third chamber (513), the first chamber (511) is located above the third chamber (513), the third air inlet (52) is connected to the third chamber (513), the third air outlet (53) is connected to the first chamber (511), and the adsorbent is activated carbon.

10. The experimental exhaust gas treatment device according to claim 1, characterized in that: The experimental exhaust gas treatment device also includes: a second connecting pipe (91), one end of the second connecting pipe (91) being in communication with the first air inlet (12); an air delivery pipe, one end of which is connected to the other end of the second connecting pipe (91), and the air delivery pipe is used to deliver waste gas; and a delivery pipe, which is connected to the air delivery pipe, and the delivery pipe is used to deliver nitrogen.

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