Waste gas treatment tank

Abstract

The utility model provides a waste gas treatment pond, and belongs to the field of waste gas treatment equipment, the waste gas treatment pond comprises an outer cleaning pond, an inner cleaning pond, a lower filter cylinder, an upper filter cylinder and a chimney, the inner cleaning pond is fixedly arranged in the center of the outer cleaning pond, the lower filter cylinder is arranged in the middle of the inner cleaning pond through a supporting frame, and the upper filter cylinder is fixedly arranged above the lower filter cylinder; the top of the upper filter cartridge is fixedly connected with a chimney, an outer gas collecting hopper and a gas inlet pipe are arranged above the outer cleaning pool, the outer gas collecting hopper is communicated with the inner cleaning pool through a gas pipeline, an inner gas collecting hopper is arranged at the top of the inner cleaning pool and is communicated with the interior of the lower filter cartridge through a gas guide pipeline, and the lower filter cartridge is communicated with the upper filter cartridge through a gas inlet pipe; the upper filter cartridge is fixedly connected with an upper spraying pipe, the lower filter cartridge is fixedly connected with a lower spraying pipe, an upper filter layer is arranged in the upper filter cartridge, and a lower filter layer is arranged in the lower filter cartridge. The slaughter waste gas treatment device has the beneficial effects of better absorbing slaughter waste gas and improving the waste gas treatment quality.

Description

Technical Field

[0001] The invention belongs to the field of waste gas treatment equipment, in particular to a waste gas treatment pool. Background Art

[0002] The current waste gas treatment equipment is used in the slaughtering and processing industry to treat the odor generated by slaughtering and processing. The odor in the slaughterhouse is caused by the decay of biological cell tissues. In order to overcome the pollution of the odor to the environment, the gas needs to be treated. These odors not only have a bad smell, but may also produce bacteria due to long-term decay.

[0003] The main processes used to treat odor are adsorption, dissolution, filtration and other means. The waste gas treatment equipment currently used cannot be well adapted to the slaughtering and processing industry. After being treated, the waste gas is discharged into the air and still has a odor, which affects the surrounding environment and residents' lives. This is because the existing waste gas treatment methods are not thorough enough. The gas is not in sufficient contact with the filtration equipment, and the odor cannot be completely removed, so the quality of waste gas treatment cannot be guaranteed. Summary of the Invention

[0004] The present invention provides a waste gas treatment pool that better absorbs slaughterhouse waste gas and improves waste gas treatment quality, and is particularly suitable for waste gas treatment in slaughterhouses. The technical problem to be solved is that after the waste gas from the slaughterhouse is treated, a large amount of odor still remains, and traditional waste gas treatment pools are not well adapted to remove the waste gas from the slaughterhouse.

[0005] The technical solution adopted by the present invention is:

[0006] A waste gas treatment pool includes an external cleaning pool, an internal cleaning pool, a lower filter cartridge, an upper filter cartridge and a chimney. The internal cleaning pool is fixedly arranged at the center of the external cleaning pool, the lower filter cartridge is arranged in the middle of the internal cleaning pool through a support frame, the upper filter cartridge is fixedly arranged above the lower filter cartridge, the top of the upper filter cartridge is fixedly connected to the chimney, an external gas collecting hopper and an air intake pipe are arranged above the external cleaning pool, the external gas collecting hopper is connected to the internal cleaning pool through a gas pipeline, an internal gas collecting hopper is arranged on the top of the internal cleaning pool, the internal gas collecting hopper is connected to the inside of the lower filter cartridge through an air guide pipeline, the lower filter cartridge is connected to the upper filter cartridge through an upper air intake pipe, the upper filter cartridge is fixedly connected to an upper spray pipe, the lower filter cartridge is fixedly connected to a lower spray pipe, an upper filter layer is arranged in the upper filter cartridge, and a lower filter layer is arranged in the lower filter cartridge.

[0007] Furthermore, the outer cleaning tank and the inner cleaning tank are both annular and fully enclosed structures, the outer gas collecting hopper and the inner gas collecting hopper are both in the shape of an inverted funnel, the top of the outer gas collecting hopper is connected to the gas pipeline through a flange, and the top of the inner gas collecting hopper is connected to the gas guide pipeline through a flange, an external liquid discharge port is set at the bottom of the outer cleaning tank, an internal liquid discharge port is set at the bottom of the inner cleaning tank, an outer baffle is set inside the outer cleaning tank, the outer baffle is located in the upper half of the outer cleaning tank, an inner baffle is set inside the inner cleaning tank, the inner baffle is located in the upper half of the inner cleaning tank, guide paddles are set directly below the outer baffle and the inner baffle, stirring paddles are set inside the outer cleaning tank and the inner cleaning tank, an external liquid addition pipe port is set above the outer cleaning tank, and an internal liquid addition pipe port is set above the inner cleaning tank.

[0008] Furthermore, the inner baffle and the outer baffle are on the same straight line and on the same side, the stirring paddle is arranged in the upper part of the inner cleaning tank and the outer cleaning tank, and multiple stirring paddles are evenly arranged around the center of the inner cleaning tank and the outer cleaning tank.

[0009] Furthermore, the feed direction of the guide paddle is a direction away from the outer air collecting hopper or the inner air collecting hopper.

[0010] Furthermore, the air inlet pipe is arranged on the side of the guide paddle away from the outer air collecting hopper, the exhaust end of the air inlet pipe is close to the bottom of the outer cleaning tank, the exhaust port of the gas pipeline connected to the outer air collecting hopper is close to the bottom of the inner cleaning tank, and the gas pipeline is located on the side of the guide paddle of the inner cleaning tank away from the inner air collecting hopper.

[0011] Furthermore, the bottom of the lower filter cartridge is connected to the lower drain pipe through a flange, and the lower drain pipe is connected to the inner cleaning tank at one end away from the lower filter cartridge; the lower part of the upper filter cartridge is connected to the upper drain pipe through a flange, and the upper drain pipe is connected to the outer cleaning tank at one end away from the upper filter cartridge, and the exhaust end of the upper air inlet pipe is higher than the water inlet of the upper drain pipe.

[0012] Furthermore, the lower filter layer is filled with filler, the end of the lower spray pipe is arranged above the lower filter layer, and an atomizing nozzle is arranged at the end of the lower spray pipe. The upper filter layer is filled with filler, the end of the upper spray pipe is arranged above the upper filter layer, and an atomizing nozzle is arranged at the end of the upper spray pipe.

[0013] Furthermore, two upper filter layers and two lower filter layers are provided, an upper spray pipe atomizing nozzle is provided above each upper filter layer, and a lower spray pipe atomizing nozzle is provided above each lower filter layer.

[0014] Furthermore, a photocatalytic oxidation device is provided inside the chimney.

[0015] Furthermore, the outer air collecting hopper, the inner air collecting hopper and the exhaust port of the upper air inlet pipe are all provided with air pumps, the upper drainage pipe and the lower drainage pipe are both provided with liquid pumps, and the lower ends of the upper spray pipe and the lower spray pipe are provided with liquid pumps.

[0016] The above structure has the following beneficial effects:

[0017] 1. Since the external cleaning tank and the internal cleaning tank are used for double cleaning, and then the stirring paddles in the external cleaning tank and the internal cleaning tank are used for mixing, the problems of incomplete spray cleaning and incomplete deodorization effect of the existing system are overcome, and the exhaust gas is fully contacted and reacted with the two cleaning liquids, effectively removing most of the pollutants.

[0018] 2. Due to the use of upper and lower filter cartridges in conjunction with the upper and lower filter layers to perform two gas-liquid reactions, the gas and liquid are fully contacted again to remove the pollutants therein. At the same time, spray is used to promote the gas-liquid reaction, overcoming the problem that the exhaust gas still has odor after a single spray treatment. The exhaust gas is quickly and fully deodorized for a second time, making the discharged gas cleaner.

[0019] 3. The use of a photocatalytic oxidation device to accelerate the oxidation and decomposition of trace odors remaining in the exhaust gas overcomes the current problem of increasing the height of the chimney in order not to affect the lives of the surrounding people. The chimney exhaust can quickly oxidize and decompose trace residual odors, avoiding the maintenance and safety hazards caused by building too high a chimney.

[0020] 4. Since the deodorizing liquid is circulated through the upper drain pipe and the lower drain pipe, the problem of low efficiency of the existing deodorizing liquid is overcome, so that the deodorizing liquid can play a deodorizing reaction role during storage and spraying, thereby improving the efficiency of the deodorizing liquid and allowing multiple reactions in one deodorizing work, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of the present invention;

[0022] Figure 2 It is a left side view of the present invention;

[0023] Figure 3 The present invention Figure 2 Cross-sectional view at CC;

[0024] Figure 4 It is a bottom view of the present invention;

[0025] Figure 5 is a top view of the present invention;

[0026] Figure 6 The present invention Figure 5 Cross-sectional view at AA in the middle;

[0027] Figure 7 The present invention Figure 5 Cross-sectional view at the middle BB;

[0028] Figure 8 The present invention Figure 5 Cross-sectional view at DD in the middle.

[0029] In the picture:

[0030] 1. External cleaning tank; 2. Internal cleaning tank; 3. Lower filter cartridge; 4. Upper filter cartridge; 5. Chimney; 6. External air collecting hopper; 7. Internal air collecting hopper; 8. Upper drain pipe; 9. Upper air inlet pipe; 10. Upper spray pipe; 11. Lower spray pipe; 12. Lower drain pipe; 13. Lower filter layer; 14. Upper filter layer; 1-1. External baffle; 1-2. Internal baffle; 1-3. Guide paddle; 1-4. Stirring paddle; 1-5. External liquid addition pipe outlet; 1-6. Internal liquid addition pipe outlet; 1-7. External liquid discharge outlet; 1-8. Internal liquid discharge outlet; 1-9. Air inlet pipe. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-8 As shown:

[0033] A waste gas treatment pool includes an external cleaning pool 1, an internal cleaning pool 2, a lower filter cartridge 3, an upper filter cartridge 4 and a chimney 5. The inner cleaning pool 2 is fixedly arranged at the center of the external cleaning pool 1. The lower filter cartridge 3 is arranged in the middle of the inner cleaning pool 2 through a support frame. The support frame supports the lower filter cartridge 3 to a position higher than the inner cleaning pool 2. The upper part of the lower filter cartridge 3 is connected to the upper filter cartridge 4 by screws. The top of the upper filter cartridge 4 is connected to the chimney 5 through a flange. An external gas collecting hopper 6 and an air inlet pipe 1-9 are arranged above the external cleaning pool 1. The external gas collecting hopper 6 is connected to the inner cleaning pool 2 through a gas pipeline. The inner gas collecting hopper is arranged on the top of the inner cleaning pool 2 7. The inner air collecting hopper 7 is connected to the interior of the lower filter cartridge 3 through the air guide pipe. The exhaust gas enters the outer cleaning tank 1 through the air inlet pipe 1-9. After passing through the outer cleaning tank 1, it is gathered by the outer air collecting hopper 6 and then transported to the inner cleaning tank 2. The lower filter cartridge 3 is connected to the upper filter cartridge 4 through the upper air inlet pipe 9. The upper air inlet pipe 9 sends the treated exhaust gas in the lower filter cartridge 3 into the upper filter cartridge 4. The upper filter cartridge 4 is plugged into the upper spray pipe 10, and the lower filter cartridge 3 is plugged into the lower spray pipe 11. An upper filter layer 14 is set in the upper filter cartridge 4, and a lower filter layer 13 is set in the lower filter cartridge 3. The upper filter layer 14 and the lower filter layer 13 are used for adsorption and promotion of gas-liquid reaction.

[0034] The outer cleaning pool 1 and the inner cleaning pool 2 are both annular and fully enclosed structures. The inner cleaning pool 2 and the outer cleaning pool 1 can not only store deodorizing liquid, but also can utilize the annular structure to greatly prolong the contact area and time of gas and liquid, thereby enhancing the deodorizing effect. The outer gas collecting hopper 6 and the inner gas collecting hopper 7 are both in the shape of an inverted funnel. The inverted funnel shape can promote the concentration of gas at the gas transmission pipeline. The top of the outer gas collecting hopper 6 is connected to the gas pipeline by a flange, and the top of the inner gas collecting hopper 7 is connected to the gas guide pipeline by a flange. The gas pipeline introduces gas from the outer cleaning pool 1 into the inner cleaning pool 2, and the gas guide pipeline introduces gas from the inner cleaning pool 2 into the lower filter cartridge 3. An external drain port 1-7 is provided at the bottom of the outer cleaning pool 1, and the external drain port 1-7 can discharge the old liquid inside the outer cleaning pool 1. An internal drain port 1-8 is provided at the bottom of the inner cleaning pool 2, and the internal drain port 1-8 is used to discharge the liquid in the inner cleaning pool 2. An outer baffle 1-1 is provided inside the outer cleaning pool 1, and the outer baffle 1-1 is located in the upper half of the outer cleaning pool 1. An inner baffle 1-1 is provided inside the inner cleaning pool 2 Baffle 1-2, the inner baffle 1-2 is located in the upper half of the inner cleaning pool 2, the inner baffle 1-2 and the outer baffle 1-1 are in a straight line and on the same side, and a guide paddle 1-3 is set just below the outer baffle 1-1 and the inner baffle 1-2. A stirring paddle 1-4 is set inside the outer cleaning pool 1 and the inner cleaning pool 2. The exhaust gas is guided by the guide paddle 1-3 in the outer cleaning pool 1 and moves along the annular outer cleaning pool 1. After a circle, it moves to the outer gas collecting hopper 6. The outer baffle 1-1 is used to prevent the exhaust gas from not completing a complete cycle. The gas is discharged from the outer gas collecting hopper 6 after entering the inner cleaning tank 2. The gas is also guided by the guide paddle 1-3 and rotates along the inner cleaning tank 2 for one circle before being discharged from the inner gas collecting hopper 7. The inner baffle 1-2 also prevents the gas from being discharged from the inner gas collecting hopper 7 without a complete circulation in the inner cleaning tank 2. An external liquid addition pipe port 1-5 is set above the outer cleaning tank 1, and an internal liquid addition pipe port 1-6 is set above the inner cleaning tank. When the effective concentration of the gas filtrate decreases, it can be supplemented or replaced through the external liquid addition pipe port 1-5 and the internal liquid addition pipe port 1-6.

[0035] The stirring paddles 1-4 are arranged in the upper part of the inner cleaning tank 2 and the outer cleaning tank 1. Because the gas floats, even with the guide paddles 1-3 to guide the gas, it will still be concentrated in the upper part. In order to improve the gas-liquid reaction effect, the stirring paddles 1-4 can mix the gas and liquid, which can not only promote the circular movement of the liquid, but also stir the gas and liquid to promote the mixing reaction. Multiple stirring paddles 1-4 are evenly arranged around the center of the inner cleaning tank 2 and the outer cleaning tank 1.

[0036] The feeding direction of the guide paddles 1-3 is away from the outer gas collecting hopper 6 or the inner gas collecting hopper 7. This prevents the exhaust gas from being discharged from the outer gas collecting hopper 6 or the inner gas collecting hopper 7 without being fully absorbed and filtered.

[0037] The air inlet pipe 1-9 is located on the side of the guide paddle 1-3 away from the outer gas collecting hopper 6 to facilitate the guidance of the guide paddle 1-3. The exhaust end of the air inlet pipe 1-9 is close to the bottom of the outer cleaning tank 1. The exhaust port of the gas pipeline connected to the outer gas collecting hopper 6 is close to the bottom of the inner cleaning tank 2. The gas pipeline is located on the side of the guide paddle 1-3 in the inner cleaning tank 2 away from the inner gas collecting hopper 7. The exhaust end is close to the bottom of the outer cleaning tank 1 and the inner cleaning tank 2 to facilitate full contact and reaction between the gas and liquid.

[0038] The bottom of the lower filter cartridge 3 is connected to the lower drain pipe 12 via a flange. The end of the lower drain pipe 12 away from the lower filter cartridge 3 is connected to the internal cleaning tank 2. The lower portion of the upper filter cartridge 4 is connected to the upper drain pipe 8 via a flange. The end of the upper drain pipe 8 away from the upper filter cartridge 4 is connected to the external cleaning tank 1. The exhaust end of the upper air inlet pipe 9 is higher than the water inlet of the upper drain pipe 8. The upper drain pipe 8 and the lower drain pipe 12 are used for the backflow of the gas filtration liquid, facilitating the recycling of the exhaust gas filtrate.

[0039] The lower filter layer 13 is filled with a filler, which can be activated carbon. This filler not only absorbs pollutants from the waste but also promotes a mixing reaction between the gas and the filtrate. The end of a lower spray pipe 11 is located above the lower filter layer 13, and an atomizing nozzle is installed at the end of the lower spray pipe 11. The atomized liquid further promotes the contact reaction between the waste gas and the filtrate. The upper filter layer 14 is filled with a filler, which is a biological deodorant. The end of an upper spray pipe 10 is located above the upper filter layer 14, and an atomizing nozzle is installed at the end of the upper spray pipe 10. The biological deodorant sprayed by the upper spray pipe 10 is the liquid in the outer cleaning tank 1, while the lower spray pipe 11 sprays the liquid in the inner cleaning tank 2. An acid-base neutralizer is used in the inner cleaning tank 2.

[0040] Two upper filter layers 14 and two lower filter layers 13 are provided. The density of the two upper filter layers 14 increases from bottom to top, and the density of the two lower filter layers 13 increases from bottom to top. An upper spray pipe 10 atomizing nozzle is installed above each upper filter layer 14, and a lower spray pipe atomizing nozzle is installed above each lower filter layer 13. The pressure of the upper atomizing nozzle in the upper filter cartridge 4 is greater than that of the lower atomizing nozzle, and the pressure of the upper atomizing nozzle in the lower filter cartridge 3 is also greater than that of the lower atomizing nozzle.

[0041] A photocatalytic oxidation device is installed inside the chimney 5. The photocatalytic oxidation device uses a high-energy, high-ozone UV beam to accelerate the decomposition of pollutants in the exhaust gas, degrading organic or inorganic high-molecular malodorous compounds into low-molecular compounds, thereby decomposing the remaining trace malodorous gases and preventing the exhaust gas from polluting the environment.

[0042] Air pumps are installed at the exhaust ports of the outer and inner gas collecting hoppers 6 and 7, as well as the upper air inlet pipe 9. Liquid pumps are installed at the upper and lower drain pipes 8 and 12, and at the lower ends of the upper and lower spray pipes 10 and 11. These pumps are used to pressurize or accelerate the flow of gas or liquid, thereby improving the efficiency of gas filtration and deodorization.

[0043] How this example works:

[0044] During use, the malodorous waste gas is filled into the interior of the outer cleaning tank 1 through the air inlet pipe 1-9, and the liquid is diverted by the guide paddle 1-3, thereby driving the waste gas to move in a circular motion with the liquid, thereby promoting the gas-liquid mixing reaction. At the same time, the stirring paddle 1-4 mixes and stirs the waste gas floating to the top with the liquid. At the same time, the stirring paddle 1-4 can also be used for rapid liquid circulation. The top gas is blocked by the outer baffle 1-1 to prevent the gas from being discharged before it is completely reacted. At the same time, it is concentrated at the position of the outer gas collecting hopper 6 and introduced into the inner cleaning tank 2. After entering the inner cleaning tank 2, the waste gas also runs along the inner cleaning tank 2 under the action of the guide paddle 1-3 and the stirring paddle 1-4, is blocked by the inner baffle 1-2, and then is concentrated at the inner gas collecting hopper 7 and discharged into the lower filter cartridge 3. In the lower filter cartridge 3, the gas rises and passes through the absorption of the lower filter layer 13 After the mixed reaction of the atomized filtrate by the atomizing nozzle of the lower spray pipe 11, it passes through the lower filter layer 13 with a larger density and reacts with the atomized filtrate again before entering the upper filter cartridge 4. The lower spray pipe 11 draws the filtrate from the inner cleaning pool 2, and the filtered liquid in the lower filter cartridge 3 returns to the inner cleaning pool 2 through the lower drain pipe 12. The waste gas passes through the upper filter layer 14 in the upper filter cartridge 4 for filtration and reaction and passes through the atomized liquid reaction of the atomizing nozzle of the upper spray pipe 10. The reacted waste gas passes through the upper filter layer 14 with a larger density and reacts with the atomized filtrate again and is discharged through the chimney 5. The photocatalytic oxidation device in the chimney 5 uses high-energy and high-ozone UV ultraviolet light beams to decompose the waste gas with odor. The upper spray pipe 10 extracts the filtrate from the outer cleaning pool 1, and the filtrate in the upper filter cartridge 4 returns to the outer cleaning pool 1 through the upper drain pipe 8.

[0045] Compared to traditional atomizing spraying, this solution significantly improves the deodorization of waste gas by washing it twice, followed by activated carbon adsorption, atomization reaction, biological deodorization spray decomposition, and photocatalytic oxidation. Conventional deodorization still produces a foul odor, polluting the environment. This odor must be discharged high into the air through a very tall chimney. This solution significantly eliminates the odor from waste gas, eliminating the need for high-altitude exhaust chimneys and facilitating use and subsequent maintenance. Furthermore, the internal and external cleaning tanks serve as both a filtrate storage tank and a leaching tank, allowing the filtrate to be recycled, improving its reaction efficiency and degree. This solution also fully utilizes all structural elements for multiple deodorization cycles, resulting in a more thorough deodorization process than existing deodorization equipment. The mechanical structure also facilitates subsequent maintenance compared to high-altitude exhaust chimneys. This improves both the deodorization effect and efficiency, resulting in a more thorough deodorization.

[0046] The directional terms mentioned in the present invention, such as "up", "down", "left", "right", etc., are only for better and clearer explanation and understanding of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0047] The above description is based on the preferred embodiments of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be varied. All variations made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A waste gas treatment tank, comprising an outer cleaning tank (1), an inner cleaning tank (2), a lower filter cartridge (3), an upper filter cartridge (4) and a chimney (5), characterized in that: An inner cleaning tank (2) is fixedly arranged at the center of the outer cleaning tank (1), a lower filter cartridge (3) is arranged in the middle of the inner cleaning tank (2) through a support frame, an upper filter cartridge (4) is fixedly arranged above the lower filter cartridge (3), and the top of the upper filter cartridge (4) is fixedly connected to a chimney (5), an outer gas collecting hopper (6) and an air inlet pipe (1-9) are arranged above the outer cleaning tank (1), the outer gas collecting hopper (6) is connected to the inner cleaning tank (2) through a gas pipeline, an inner gas collecting hopper (7) is arranged on the top of the inner cleaning tank (2), the inner gas collecting hopper (7) is connected to the inside of the lower filter cartridge (3) through an air guide pipe, the lower filter cartridge (3) is connected to the upper filter cartridge (4) through an upper air inlet pipe (9), the upper filter cartridge (4) is fixedly connected to an upper spray pipe (10), the lower filter cartridge (3) is fixedly connected to a lower spray pipe (11), an upper filter layer (14) is arranged in the upper filter cartridge (4), and a lower filter layer (13) is arranged in the lower filter cartridge (3).

2. The waste gas treatment pool according to claim 1, characterized in that: The outer cleaning pool (1) and the inner cleaning pool (2) are both annular and fully enclosed structures. The outer gas collecting hopper (6) and the inner gas collecting hopper (7) are both in the shape of an inverted funnel. The top of the outer gas collecting hopper (6) is connected to the gas pipeline through a flange, and the top of the inner gas collecting hopper (7) is connected to the gas guide pipeline through a flange. The outer cleaning pool (1) is provided with an outer liquid discharge port (1-7) at the bottom, and the inner cleaning pool (2) is provided with an inner liquid discharge port (1-8) at the bottom. An outer baffle (1-1) is provided inside the outer cleaning pool (1), and the outer baffle (1-1 ) is located in the upper half of the outer cleaning tank (1), an inner baffle (1-2) is arranged inside the inner cleaning tank (2), the inner baffle (1-2) is located in the upper half of the inner cleaning tank (2), a guide paddle (1-3) is arranged directly below the outer baffle (1-1) and the inner baffle (1-2), a stirring paddle (1-4) is arranged inside the outer cleaning tank (1) and the inner cleaning tank (2), an external liquid addition pipe opening (1-5) is arranged above the outer cleaning tank (1), and an internal liquid addition pipe opening (1-6) is arranged above the inner cleaning tank (2).

3. The waste gas treatment pool according to claim 2, characterized in that: The inner baffle (1-2) and the outer baffle (1-1) are on the same straight line and on the same side, the stirring paddle (1-4) is arranged in the upper half of the inner cleaning tank (2) and the outer cleaning tank (1), and a plurality of stirring paddles (1-4) are evenly arranged around the center of the inner cleaning tank (2) and the outer cleaning tank (1).

4. The waste gas treatment pool according to claim 3, characterized in that: The feed direction of the guide paddles (1-3) is a direction away from the outer gas collecting hopper (6) or the inner gas collecting hopper (7).

5. The waste gas treatment pool according to claim 4, characterized in that: The air inlet pipe (1-9) is arranged on the side of the guide paddle (1-3) away from the outer gas collecting hopper (6), the exhaust end of the air inlet pipe (1-9) is close to the bottom of the outer cleaning tank (1), the exhaust port of the gas pipeline connected to the outer gas collecting hopper (6) is close to the bottom of the inner cleaning tank (2), and the gas pipeline is located on the side of the guide paddle (1-3) of the inner cleaning tank (2) away from the inner gas collecting hopper (7).

6. The waste gas treatment pool according to claim 1, characterized in that: The bottom of the lower filter cartridge (3) is connected to a lower drain pipe (12) via a flange, and the end of the lower drain pipe (12) away from the lower filter cartridge (3) is connected to the inner cleaning tank (2); the lower part of the upper filter cartridge (4) is connected to an upper drain pipe (8) via a flange, and the end of the upper drain pipe (8) away from the upper filter cartridge (4) is connected to the outer cleaning tank (1), and the exhaust end of the upper air inlet pipe (9) is higher than the water inlet of the upper drain pipe (8).

7. The waste gas treatment pool according to claim 6, characterized in that: The lower filter layer (13) is filled with filler, the end of the lower spray pipe (11) is arranged above the lower filter layer (13), and an atomizing nozzle is arranged at the end of the lower spray pipe (11); the upper filter layer (14) is filled with filler, the end of the upper spray pipe (10) is arranged above the upper filter layer (14), and an atomizing nozzle is arranged at the end of the upper spray pipe (10).

8. The waste gas treatment pool according to claim 7, characterized in that: Two upper filter layers (14) and two lower filter layers (13) are provided, an upper spray pipe (10) atomizing nozzle is provided above each upper filter layer (14), and a lower spray pipe atomizing nozzle is provided above each lower filter layer (13), and a liquid pump is provided on each upper drainage pipe (8) and lower drainage pipe (12).

9. The waste gas treatment pool according to claim 1, characterized in that: A photocatalytic oxidation device is arranged inside the chimney (5).

10. The waste gas treatment pool according to claim 5, characterized in that: The outer air collecting hopper (6), the inner air collecting hopper (7) and the exhaust port of the upper air inlet pipe (9) are all provided with air pumps, and the lower ends of the upper spray pipe (10) and the lower spray pipe (11) are provided with liquid pumps.

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