A noble metal extractant production waste gas treatment device

Abstract

The utility model discloses a kind of noble metal extractant production waste gas treatment devices, it is related to waste gas treatment technical field, including front processing structure, front processing structure side is equipped with rear processing structure;Front processing structure top is fixedly connected with top storehouse, top storehouse is communicated with rear processing structure by connecting storehouse;The two ends inside of double liquid circulating pool that store waste gas treatment reagent are equipped with filter box;The one end close to front processing structure of double liquid circulating pool is equipped with front spraying structure, and the one end close to rear processing structure of double liquid circulating pool is equipped with rear spraying structure;By setting double liquid circulating pool, pool body is separated into front circulating pool and rear circulating pool using partition plate, the treatment reagent for different pollutants can be stored respectively, so that mixed acid waste gas generated in noble metal extractant production is treated in stages, targeted, solve the problem that single reagent cannot consider two types of pollutants purification needs.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically a waste gas treatment device for the production of precious metal extraction agents. Background Technology

[0002] Precious metal extractants are specialized chemical reagents used in hydrometallurgy for the selective separation and enrichment of precious metals such as gold, silver, platinum, palladium, and rhodium. The synthesis of precious metal extractants often involves multi-step organic reactions. For example, in the synthesis of phosphorus extractants, phosphorus oxychloride undergoes esterification with butanol, producing acidic hydrogen chloride waste gas as a byproduct. In the amination reaction of quaternary ammonium salt extractants, excess ammonia or organic amines can generate waste gas. In the oxime reaction, the condensation of hydroxylamine with ketones / aldehydes produces NO. x Acidic waste gas.

[0003] Chinese Patent Publication No. CN 222658220 U discloses a high-efficiency cyclone spray tower for removing waste gas. Its structure includes a spray tower body, a first cyclone barrel, a second cyclone barrel, a negative pressure fan, an air outlet, and a spraying device. The beneficial effects of this utility model are: the motor drives the drive gear to rotate, and the drive gear is fixed to the connecting plate, which drives the driven gear to rotate on the gear disk, so that the disk rotates together and makes eccentric motion. The spraying liquid is sprayed out by the nozzle on the disk, which can uniformly contact and purify the waste gas, and greatly increase the contact area between the spraying liquid and the waste gas.

[0004] The aforementioned cyclone spray tower increases the treatment effect of waste gas by increasing the contact area between the spray liquid and the waste gas. However, when treating acidic waste gas generated during the production of precious metal extraction agents, because the acidic waste gas is a mixed system of inorganic acid mist mainly composed of HCl, phosphoric acid mist, and SO2, and organic acidic vapor mainly composed of carboxylic acids, phenols, and halogenated organic acids, a single agent cannot meet the purification needs of both types of pollutants. Therefore, the aforementioned cyclone spray tower can only treat one type of pollutant in the waste gas and cannot completely remove the harmful components in the waste gas. Utility Model Content

[0005] The purpose of this utility model is to provide a waste gas treatment device for the production of precious metal extraction agents. The pre-treatment structure combined with the pre-spray structure can remove one type of pollutant in the waste gas, and the post-treatment structure combined with the post-spray structure can remove another type of pollutant in the waste gas. Moreover, the tank can realize the recycling of the two agents, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A waste gas treatment device for the production of precious metal extraction agents, comprising:

[0008] The pre-treatment structure is used to treat the exhaust gas, and a post-treatment structure is provided on one side of the pre-treatment structure; the top of the pre-treatment structure is fixedly connected to the top chamber, the top chamber is connected to the post-treatment structure through the connecting chamber, and the top of the post-treatment structure is fixedly connected to the discharge structure.

[0009] The dual liquid circulation tank contains waste gas treatment agents and has filter boxes on the inner sides of both ends; the end of the dual liquid circulation tank near the pre-treatment structure has a pre-spray structure and the end of the dual liquid circulation tank near the post-treatment structure has a post-spray structure.

[0010] The dual liquid circulation tank includes a tank body, which has an integral partition plate inside, dividing the tank body into a pre-circulation tank and a post-circulation tank; both ends of the tank body are fixedly connected to a diversion hopper.

[0011] The pretreatment structure and the posttreatment structure have the same structure. The pretreatment structure includes a treatment chamber. The top of the treatment chamber is fixedly connected to and communicates with the top chamber. A fan blade is fixedly connected to the top of the inner side of the treatment chamber. The bottom of the treatment chamber is integrally provided with a slag discharge hopper, and the position of the slag discharge hopper corresponds to that of the diversion hopper.

[0012] The aforementioned pre-spray structure includes multiple nozzles 1 and multiple nozzles 2, wherein multiple nozzles 2 are all located inside the treatment chamber and at the bottom of the blade fan, and multiple nozzles 1 are all located inside the top chamber and correspond to the position of the treatment chamber.

[0013] As a further technical solution of this utility model, the plurality of nozzles 2 are respectively fixedly connected to two extension tubes, the plurality of nozzles 1 are respectively fixedly connected to two diversion tubes 1, and the ends of the two extension tubes away from the nozzles 2 extend to the outside of the processing chamber and are respectively fixedly connected to the two diversion tubes 1.

[0014] As a further technical solution of this utility model, the middle sections of the two extension pipes are fixedly connected to the outer wall of the processing chamber through multiple mounting seats; the ends of the two branch pipes away from the extension pipes are fixedly connected to the main pipe, the end of the main pipe is fixedly connected to the conveying pipe, and the end of the conveying pipe away from the main pipe is connected to the output end of the submersible pump.

[0015] As a further technical solution of this utility model, the rear spray structure includes multiple nozzles three, all of which are located at the top of the blades of the rear treatment structure, and each of the multiple nozzles three is fixedly connected to two diversion pipes two; one end of each of the two diversion pipes two is fixedly connected to the main pipe two.

[0016] The main pipe 2 is fixedly connected to the delivery pipe 2, and the end of the delivery pipe 2 away from the main pipe 2 is connected to the output end of the self-priming pump.

[0017] As a further technical solution of this utility model, the air inlet pipe of the pretreatment structure is fixedly connected to the exhaust gas transport pipe, the air inlet pipe of the posttreatment structure is fixedly connected to one end of the connecting chamber, and the end of the connecting chamber away from the posttreatment structure is fixedly connected to the top chamber and communicates with the top chamber; the bottom of the uprights of the pretreatment structure and the posttreatment structure are respectively fixedly connected to the top of both ends of the pool body.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, by setting up a dual-liquid circulation tank and using a partition plate to divide the tank into a pre-circulation tank and a post-circulation tank, can store treatment agents for different pollutants separately, thereby realizing the staged and targeted treatment of mixed acidic waste gas generated in the production of precious metal extraction agents, solving the problem that a single agent cannot meet the purification needs of two types of pollutants. In addition, the diversion hoppers at both ends of the dual-liquid circulation tank correspond to the slag discharge hopper at the bottom of the treatment chamber, so that the mixed liquid after spraying and a small amount of solid impurities can be smoothly returned to the filter box for filtration. The filtered agent re-enters the circulation tank, realizing the recycling of the agent, reducing the treatment cost, and also preventing impurities from clogging the spray structure.

[0020] 2. In this utility model, the pre-treatment structure and the post-treatment structure adopt the same design, which is convenient for manufacturing and maintenance. The blades in the treatment chamber can promote the flow and diffusion of exhaust gas in the chamber. Together with the nozzle 1 located in the top chamber of the pre-treatment spray structure and the nozzle 2 at the bottom of the blades inside the treatment chamber, a double-layer spray is formed, which greatly increases the contact area and contact time between the spray liquid and the exhaust gas, and improves the removal efficiency of the first type of pollutants in the exhaust gas. The multiple nozzles 3 of the post-treatment spray structure are set on the top of the blades of the post-treatment structure to further spray the pre-treated exhaust gas a second time, ensuring that the other type of pollutants are fully purified. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This utility model Figure 1 Top view.

[0023] Figure 3 This utility model Figure 2 AA sectional view.

[0024] Figure 4 This is a three-dimensional structural diagram of the dual liquid circulation tank of this utility model.

[0025] Figure 5 This utility model Figure 4 Another perspective view.

[0026] Figure 6 This utility model Figure 4 Top view.

[0027] Figure 7 This is a diagram showing the positional relationship between the pretreatment structure and the pre-spraying structure of this utility model.

[0028] Figure 8 This utility model Figure 7 Top view.

[0029] Figure 9 This utility model Figure 8 BB cross-sectional view.

[0030] Figure 10 This utility model Figure 1 A partial structural diagram.

[0031] Figure 11 This utility model Figure 10 Side view.

[0032] Figure 12 This utility model Figure 11 CC section view.

[0033] In the diagram: 1-Dual liquid circulation tank, 2-Pre-treatment structure, 3-Post-treatment structure, 4-Top chamber, 5-Connecting chamber, 6-Discharge structure, 7-Pre-spray structure, 8-Post-spray structure, 9-Filter box;

[0034] 11-Pool body, 12-Partition plate, 13-Pre-circulation tank, 14-Post-circulation tank, 15-Drainage hopper, 16-Inlet pipe, 17-Drainage pipe, 18-Connecting pipe, 19-Self-priming pump, 10-Submersible pump, 110-Mounting frame, 21-Treatment chamber, 22-Air inlet pipe, 23-Swirl pipe, 24-Upright frame, 25-Blade fan, 26-Slag discharge hopper, 61-Discharge chamber, 62-Activated carbon plate, 63-Discharge pipe, 64-Inspection port, 71-Transport pipe one, 72-Main main pipe one, 73-Diverter pipe one, 74-Extension pipe, 75-Mounting base, 76-Nozzle one, 77-Nozzle two, 81-Transport pipe two, 82-Main main pipe two, 83-Diverter pipe two, 84-Nozzle three. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1-12 In this embodiment of the utility model, a waste gas treatment device for precious metal extraction agent production includes...

[0037] The pretreatment structure 2 is used to treat the waste gas. A posttreatment structure 3 is provided on one side of the pretreatment structure 2. The top of the pretreatment structure 2 is fixedly connected to the top chamber 4. The top chamber 4 is connected to the posttreatment structure 3 through the connecting chamber 5. The top of the posttreatment structure 3 is fixedly connected to the discharge structure 6. The dual liquid circulation tank 1, which stores waste gas treatment agents, has filter boxes 9 on the inner sides of both ends. A pre-spray structure 7 is provided at the end of the dual liquid circulation tank 1 near the pretreatment structure 2, and a post-spray structure 8 is provided at the end of the dual liquid circulation tank 1 near the posttreatment structure 3.

[0038] The dual-liquid circulation tank 1 includes a tank body 11, inside which an integral partition plate 12 is provided, dividing the tank body 11 into a pre-circulation tank 13 and a post-circulation tank 14; both ends of the tank body 11 are fixedly connected to the top of a diversion hopper 15; the two diversion hoppers 15 correspond to the positions of the two filter boxes 9 respectively, and the discharge ports of the two diversion hoppers 15 are inclined; two liquid inlet pipes 16 are fixedly connected to one side of the tank body 11, and the two liquid inlet pipes 16 are respectively connected to the pre-circulation tank 13 and the post-circulation tank 14; two sewage pipes 17 are fixedly connected to the side of the tank body 11 away from the liquid inlet pipes 16, and the two sewage pipes 17 are respectively connected to the pre-circulation tank 13 and the post-circulation tank 14.

[0039] The pre-circulation tank 13 is equipped with a submersible pump 10, which is fixedly connected to the mounting frame 110, and the mounting frame 110 is fixedly connected to the tank body 11. A connecting pipe 18 is fixedly connected to one end of the tank body 11 near the post-circulation tank 14, and the other end of the connecting pipe 18 away from the post-circulation tank 14 is connected to the input end of the self-priming pump 19.

[0040] The pretreatment structure 2 and the posttreatment structure 3 have the same structure. The pretreatment structure 2 includes a treatment chamber 21. The top of the treatment chamber 21 is fixedly connected to and communicates with the top chamber 4. A fan blade 25 is fixedly connected to the top of the inner side of the treatment chamber 21. The bottom of the treatment chamber 21 is integrally provided with a slag discharge hopper 26, and the position of the slag discharge hopper 26 corresponds to that of the diversion hopper 15.

[0041] The pre-spray structure 7 includes multiple nozzles 1 76 and multiple nozzles 2 77, wherein multiple nozzles 2 77 are all located inside the treatment chamber 21 and at the bottom of the blade fan 25, and multiple nozzles 1 76 are all located inside the top chamber 4 and correspond to the position of the treatment chamber 21.

[0042] By adopting the above technical solution, a dual-liquid circulation tank 1 is set up, and the tank body 11 is divided into a pre-circulation tank 13 and a post-circulation tank 14 by a partition plate 12. Treatment agents for different pollutants can be stored separately. For example, the pre-circulation tank 13 can store alkaline agents to neutralize inorganic acid mist in acidic waste gas, and the post-circulation tank 14 can store specific organic agents to treat organic acidic vapors. This enables the phased and targeted treatment of mixed acidic waste gas generated in the production of precious metal extraction agents, solving the problem that a single agent cannot meet the purification needs of two types of pollutants. In addition, the diversion hoppers 15 at both ends of the dual-liquid circulation tank 1 correspond to the slag discharge hopper 26 at the bottom of the treatment chamber 21, so that the mixed liquid after spraying and a small amount of solid impurities can be smoothly returned to the filter box 9 for filtration. The filtered agents re-enter the circulation tank, realizing the recycling of agents, reducing treatment costs, and also preventing impurities from clogging the spraying structure.

[0043] In this embodiment, multiple nozzles 77 are fixedly connected to two extension tubes 74 respectively, multiple nozzles 76 are fixedly connected to two diversion tubes 73 respectively, and the ends of the two extension tubes 74 away from the nozzles 77 extend to the outside of the processing chamber 21 and are fixedly connected to the two diversion tubes 73 respectively.

[0044] The middle sections of the two extension pipes 74 are fixedly connected to the outer wall of the processing chamber 21 through multiple mounting seats 75; the ends of the two branch pipes 73 away from the extension pipes 74 are fixedly connected to the main pipe 72, the end of the main pipe 72 is fixedly connected to the conveying pipe 71, and the end of the conveying pipe 71 away from the main pipe 72 is connected to the output end of the submersible pump 10.

[0045] The post-spray structure 8 includes multiple nozzles 84, all of which are located on the top of the blades 25 of the post-treatment structure 3, and each nozzle is fixedly connected to two diversion pipes 83. One end of each of the two diversion pipes 83 is fixedly connected to the main pipe 82. The main pipe 82 is fixedly connected to the delivery pipe 81, and the end of the delivery pipe 81 away from the main pipe 82 is connected to the output end of the self-priming pump 19.

[0046] A swirl pipe 23 is fixedly connected to one side of the treatment chamber 21, and an air inlet pipe 22 is fixedly connected to the end of the swirl pipe 23 away from the treatment chamber 21; the outer wall of the treatment chamber 21 is fixedly connected to the upright frame 24; the air inlet pipe 22 of the pre-treatment structure 2 is fixedly connected to the waste gas transport pipe, and the air inlet pipe 22 of the post-treatment structure 3 is fixedly connected to one end of the connecting chamber 5, and the end of the connecting chamber 5 away from the post-treatment structure 3 is fixedly connected to the top chamber 4 and communicates with the top chamber 4; the bottom of the upright frame 24 of the pre-treatment structure 2 and the post-treatment structure 3 is fixedly connected to the top of both ends of the pool body 11 respectively.

[0047] By adopting the above technical solution, the pretreatment structure 2 and the posttreatment structure 3 adopt the same design, which is convenient for manufacturing and maintenance. The blades 25 in the treatment chamber 21 can promote the flow and diffusion of exhaust gas in the chamber. Together with the nozzle 76 located in the top chamber 4 of the pretreatment spray structure 7 and the nozzle 77 at the bottom of the blades 25 inside the treatment chamber 21, a double-layer spray is formed, which greatly increases the contact area and contact time between the spray liquid and the exhaust gas, and improves the removal efficiency of the first type of pollutants in the exhaust gas. The multiple nozzles 84 of the posttreatment spray structure 8 are set on the top of the blades 25 of the posttreatment structure 3 to further spray the pre-treated exhaust gas a second time, ensuring that the other type of pollutants are fully purified.

[0048] In this embodiment, the discharge structure 6 includes a discharge chamber 61, the bottom of which is fixedly connected to and communicates with the top of the treatment chamber 21 of the post-treatment structure 3; a discharge pipe 63 is provided on the top of the discharge chamber 61; two vertically distributed activated carbon plates 62 are provided inside the discharge chamber 61, and an inspection port 64 is provided on one side of the discharge chamber 61.

[0049] By adopting the above technical solution, the two vertically distributed activated carbon plates 62 set in the emission structure 6 can deeply adsorb and purify the exhaust gas after two-stage spraying treatment, further remove residual trace harmful substances, and ensure that the final emitted gas meets the standards. The design of the inspection port 64 facilitates the replacement and maintenance of the activated carbon plates 62.

[0050] The working principle of this utility model is as follows: By setting up a dual liquid circulation tank 1, the tank body 11 is divided into a pre-circulation tank 13 and a post-circulation tank 14 by a partition plate 12. The pre-circulation tank 13 can store treatment agents for different pollutants. For example, the pre-circulation tank 13 can store alkaline agents to neutralize inorganic acid mist in acidic waste gas, and the post-circulation tank 14 can store specific organic agents to treat organic acidic vapors. This enables the phased and targeted treatment of mixed acidic waste gas generated in the production of precious metal extraction agents, solving the problem that a single agent cannot meet the purification needs of two types of pollutants. In addition, the diversion hoppers 15 at both ends of the dual liquid circulation tank 1 correspond to the slag discharge hopper 26 at the bottom of the treatment chamber 21, so that the mixed liquid after spraying and a small amount of solid impurities can flow back to the filter box 9 for filtration. The filtered agents re-enter the circulation tank, realizing the recycling of agents, reducing treatment costs, and also preventing impurities from clogging the spraying structure.

[0051] The pretreatment structure 2 and the posttreatment structure 3 adopt the same design, which is convenient for manufacturing and maintenance. The blades 25 in the treatment chamber 21 can promote the flow and diffusion of exhaust gas in the chamber. Together with the nozzle 76 in the top chamber 4 of the pretreatment spray structure 7 and the nozzle 77 at the bottom of the blades 25 inside the treatment chamber 21, a double-layer spray is formed, which greatly increases the contact area and contact time between the spray liquid and the exhaust gas, and improves the removal efficiency of the first type of pollutants in the exhaust gas. The multiple nozzles 84 of the posttreatment spray structure 8 are set on the top of the blades 25 of the posttreatment structure 3 to further spray the pre-treated exhaust gas to ensure that the other type of pollutants are fully purified.

[0052] The two vertically distributed activated carbon plates 62 in the emission structure 6 can deeply adsorb and purify the exhaust gas after two-stage spraying treatment, further removing residual trace harmful substances and ensuring that the final emission gas meets the standards. The design of the inspection port 64 facilitates the replacement and maintenance of the activated carbon plates 62.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste gas treatment device for the production of precious metal extraction agents, characterized in that: include The pretreatment structure (2) is used to treat the exhaust gas. A posttreatment structure (3) is provided on one side of the pretreatment structure (2). The top of the pretreatment structure (2) is fixedly connected to the top chamber (4). The top chamber (4) is connected to the posttreatment structure (3) through the connecting chamber (5). The top of the posttreatment structure (3) is fixedly connected to the discharge structure (6). The double liquid circulation tank (1) contains waste gas treatment agents and is equipped with filter boxes (9) on both inner sides of its two ends; the double liquid circulation tank (1) is equipped with a pre-spray structure (7) at one end near the pre-treatment structure (2) and a post-spray structure (8) at one end near the post-treatment structure (3). The dual liquid circulation tank (1) includes a tank body (11), which is equipped with an integral partition plate (12) inside the tank body (11), and the partition plate (12) divides the tank body (11) into a pre-circulation tank (13) and a post-circulation tank (14); both ends of the tank body (11) are fixedly connected to the top of the top of the tank body (11) with a diversion bucket (15). The pretreatment structure (2) has the same structure as the posttreatment structure (3). The pretreatment structure (2) includes a treatment chamber (21). The top of the treatment chamber (21) is fixedly connected to the top chamber (4) and communicates with the top chamber (4). A blade fan (25) is fixedly connected to the top of the inner side of the treatment chamber (21). The bottom of the treatment chamber (21) is integrally provided with a slag discharge hopper (26), and the slag discharge hopper (26) corresponds to the position of the diversion hopper (15). The pre-spray structure (7) includes multiple nozzles one (76) and multiple nozzles two (77), wherein multiple nozzles two (77) are located inside the treatment chamber (21) and at the bottom of the blade fan (25), and multiple nozzles one (76) are located inside the top chamber (4) and correspond to the position of the treatment chamber (21).

2. The waste gas treatment device for precious metal extraction agent production according to claim 1, characterized in that: The two diversion buckets (15) are respectively positioned opposite to the two filter boxes (9), and the discharge ports of the two diversion buckets (15) are inclined; two liquid inlet pipes (16) are fixedly connected to one side of the pool body (11), and the two liquid inlet pipes (16) are respectively connected to the pre-circulation pool (13) and the post-circulation pool (14); two sewage pipes (17) are fixedly connected to the side of the pool body (11) away from the liquid inlet pipes (16), and the two sewage pipes (17) are respectively connected to the pre-circulation pool (13) and the post-circulation pool (14).

3. The waste gas treatment device for precious metal extraction agent production according to claim 1, characterized in that: The pre-circulation tank (13) is equipped with a submersible pump (10), which is fixedly connected to the mounting frame (110), and the mounting frame (110) is fixedly connected to the tank body (11); a connecting pipe (18) is fixedly connected to one end of the tank body (11) near the post-circulation tank (14), and the other end of the connecting pipe (18) away from the post-circulation tank (14) is connected to the input end of the self-priming pump (19).

4. The waste gas treatment device for precious metal extraction agent production according to claim 3, characterized in that: Multiple nozzles two (77) are fixedly connected to two extension tubes (74) respectively, multiple nozzles one (76) are fixedly connected to two diversion tubes one (73) respectively, and the two extension tubes (74) extend to the outside of the processing chamber (21) away from the nozzles two (77) and are fixedly connected to the two diversion tubes one (73) respectively.

5. The waste gas treatment device for precious metal extraction agent production according to claim 4, characterized in that: The middle sections of the two extension pipes (74) are fixedly connected to the outer wall of the processing chamber (21) through multiple mounting seats (75); the ends of the two branch pipes (73) away from the extension pipes (74) are fixedly connected to the main pipe (72), the end of the main pipe (72) is fixedly connected to the delivery pipe (71), and the end of the delivery pipe (71) away from the main pipe (72) is connected to the output end of the submersible pump (10).

6. The waste gas treatment device for precious metal extraction agent production according to claim 3, characterized in that: The post-spray structure (8) includes multiple nozzles (84), all of which are located on the top of the blades (25) of the post-treatment structure (3), and each of the multiple nozzles (84) is fixedly connected to two diversion pipes (83); one end of each of the two diversion pipes (83) is fixedly connected to the main pipe (82). The second main pipe (82) is fixedly connected to the second delivery pipe (81), and the end of the second delivery pipe (81) away from the second main pipe (82) is connected to the output end of the self-priming pump (19).

7. The waste gas treatment device for precious metal extraction agent production according to claim 1, characterized in that: A swirling pipe (23) is fixedly connected to one side of the processing chamber (21), and an air inlet pipe (22) is fixedly connected to the end of the swirling pipe (23) away from the processing chamber (21); the outer wall of the processing chamber (21) is fixedly connected to the upright frame (24).

8. The waste gas treatment device for precious metal extraction agent production according to claim 1, characterized in that: The air inlet pipe (22) of the pretreatment structure (2) is fixedly connected to the exhaust gas transport pipe, and the air inlet pipe (22) of the posttreatment structure (3) is fixedly connected to one end of the connecting chamber (5). The end of the connecting chamber (5) away from the posttreatment structure (3) is fixedly connected to the top chamber (4) and communicates with the top chamber (4). The bottom of the uprights (24) of the pretreatment structure (2) and the posttreatment structure (3) is fixedly connected to the top of both ends of the pool body (11).

9. The waste gas treatment device for precious metal extraction agent production according to claim 1, characterized in that: The discharge structure (6) includes a discharge chamber (61), the bottom of which is fixedly connected to the top of the treatment chamber (21) of the post-treatment structure (3) and communicates with each other; a discharge pipe (63) is provided on the top of the discharge chamber (61); two vertically distributed activated carbon plates (62) are provided inside the discharge chamber (61), and an inspection port (64) is provided on one side of the discharge chamber (61).

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