Waste gas treatment device

Abstract

The utility model provides a waste gas treatment device. The waste gas treatment device comprises an air inlet channel; the air outlet end of the air inlet channel is communicated with an air inlet of the microorganism purification tower; the microorganism purification part is arranged in the microorganism purification tower and is used for purifying the waste gas; the waste gas concentration detection piece is arranged on the air inlet channel and is used for detecting the concentration of waste gas in one end, communicated with the microorganism purification tower, of the air inlet channel; the concentration adjusting structure is used for adjusting the concentration of the waste gas in the microbial purification tower. The problems that in the prior art, due to the fact that the concentration fluctuation of pollutants such as VOCS and hydrogen sulfide in waste gas is large, the microbial purification unit is impacted, even poisoning death of microorganisms is possibly caused, and the treatment capacity of the microbial purification unit is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment devices, and more specifically, to a waste gas treatment device. Background Technology

[0002] Wastewater treatment plants, as important environmental protection facilities for wastewater treatment, generate exhaust gases containing odorous pollutants such as VOCs (volatile organic compounds) and hydrogen sulfide during their operation. Direct discharge of these gases can have serious impacts on the surrounding environment and human health.

[0003] Traditional microbial purification methods, when treating wastewater treatment plant exhaust gases, are hampered by the presence of VOCs in the exhaust gases. S Large fluctuations in the concentration of pollutants such as hydrogen sulfide can impact the microbial purification unit, potentially causing microbial poisoning and death, thus reducing the unit's processing capacity. Utility Model Content

[0004] This invention provides a waste gas treatment device to solve the problem of VOCs in waste gas in existing technologies. S Large fluctuations in the concentration of pollutants such as hydrogen sulfide can impact the microbial purification unit, potentially causing microbial poisoning and death, thus reducing the unit's processing capacity.

[0005] This utility model provides a waste gas treatment device, which includes: an air inlet channel; a microbial purification tower, wherein the air outlet of the air inlet channel is connected to the air inlet of the microbial purification tower; a microbial purification unit, which is disposed in the microbial purification tower and used to purify waste gas; a waste gas concentration detection element, which is disposed on the air inlet channel and is used to detect the concentration of waste gas in the end of the air inlet channel connected to the microbial purification tower; and a concentration adjustment structure, which is used to adjust the concentration of waste gas in the microbial purification tower.

[0006] Furthermore, the concentration adjustment structure includes: a makeup air inlet, which is disposed on the side wall of the air inlet channel and connected to the air inlet channel, and the makeup air inlet has a first blocked state and a first open state arranged opposite to each other.

[0007] Furthermore, the exhaust gas treatment device also includes: a makeup air device, including a makeup air pipe, a first flow regulator and a makeup air pump, one end of the makeup air pipe being connected to the makeup air inlet, the first flow regulator being installed on the makeup air pipe, and the makeup air pump being installed on the makeup air pipe.

[0008] Furthermore, an exhaust port is provided on the side wall of the air intake channel. The exhaust port is connected to the air intake channel and is located at the end of the air supply port near the air intake port. The exhaust port has a second blocked state and a second open state.

[0009] Furthermore, the exhaust gas treatment device also includes an exhaust device, comprising an exhaust pipe, a second flow regulator, and an exhaust pump. One end of the exhaust pipe is connected to an exhaust port, and the second flow regulator and the exhaust pump are both mounted on the exhaust pipe.

[0010] Furthermore, the waste gas treatment device also includes: a first spraying device, comprising a culture medium storage section and a first nozzle that are interconnected, the culture medium storage section being used to store culture medium, the first nozzle being located inside the microbial purification tower, and the first spraying device spraying onto the microbial purification section through the first nozzle.

[0011] Furthermore, the waste gas treatment device also includes: a first pH detection element and a first alkali replenishment unit, wherein the first pH detection element is disposed on the culture medium storage unit and is used to detect the pH of the culture medium in the culture medium storage unit; the first alkali replenishment unit is connected to the culture medium storage unit and is used to provide alkali to the culture medium storage unit; and / or, a carbon source storage unit, which is connected to the culture medium storage unit and is used to provide a carbon source to the culture medium storage unit; and / or, a first liquid level detection element and a first culture medium replenishment unit, wherein the first liquid level detection element is disposed on the culture medium storage unit and is used to detect the liquid level of the culture medium in the culture medium storage unit; the first culture medium replenishment unit is connected to the culture medium storage unit and is used to replenish the culture medium storage unit with culture medium.

[0012] Furthermore, the waste gas treatment device includes: a first mounting frame located inside the microbial purification tower, a microbial purification unit disposed on the first mounting frame, and the first mounting frame being detachably connected to the microbial purification tower.

[0013] Furthermore, the waste gas treatment device includes: a scrubbing tower located downstream of the microbial purification tower, with the inlet of the scrubbing tower connected to the outlet of the microbial purification tower; and a scrubbing device including a detergent storage section and a second nozzle connected to each other, the detergent storage section being used to store detergent, the second nozzle being disposed inside the scrubbing tower, and the scrubbing device spraying detergent into the scrubbing tower through the second nozzle.

[0014] Furthermore, multiple washing towers are installed, and these washing towers are connected in series.

[0015] Furthermore, at least part of the washing device also includes: a second pH detector and a second alkali replenishment device, wherein the second pH detector is disposed on the detergent storage section and is used to detect the pH of the alkali solution in the detergent storage section, and the second alkali replenishment device is connected to the detergent storage section and is used to replenish alkali solution into the detergent storage section; and / or, a second liquid level detector and a water replenishment section, wherein the second liquid level detector is disposed on the detergent storage section and is used to detect the liquid level of the alkali solution in the detergent storage section, and the water replenishment section is used to replenish water into the detergent storage section.

[0016] Furthermore, the waste gas treatment device also includes: a gas-liquid phase contact packing, which is installed inside the scrubbing tower. The gas-liquid phase contact packing is located below the second nozzle and has a hollow structure.

[0017] Furthermore, the waste gas treatment device also includes: a second mounting frame located inside the scrubbing tower, gas-liquid phase contact packing disposed on the second mounting frame, and the second mounting frame being detachably connected to the scrubbing tower; and a baffle plate detachably disposed on the second mounting frame.

[0018] By applying the technical solution of this utility model, an exhaust gas concentration detection device and a concentration adjustment structure are installed in the exhaust gas treatment device. This enables the detection of the concentration of exhaust gas entering the microbial purification tower. When the exhaust gas concentration detection device detects that the exhaust gas concentration is higher than a preset value, the concentration adjustment structure can adjust the concentration of exhaust gas in the microbial purification tower, thereby reducing the concentration of exhaust gas in the microbial purification tower and preventing the concentration of exhaust gas entering the microbial purification tower from being too high. This ensures that the working environment of the microbial purification section, i.e., the concentration of the exhaust gas it comes into contact with, is stable, maintains the good activity of the microorganisms in the microbial purification section, ensures the good purification effect of the microbial purification section on the exhaust gas, and improves the treatment efficiency and stability of the exhaust gas treatment device. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the waste gas treatment device provided by this utility model is shown.

[0021] The above figures include the following reference numerals:

[0022] 10. Air inlet duct; 20. Microbial purification tower;

[0023] 30. Microbial purification department;

[0024] 40. Exhaust gas concentration detection device;

[0025] 50. Concentration adjustment structure;

[0026] 60. Makeup air device; 61. Makeup air duct; 62. First flow rate regulator; 63. Makeup air pump;

[0027] 70. Exhaust system; 71. Exhaust duct; 72. Second flow regulator; 73. Exhaust pump;

[0028] 81. Culture medium storage section;

[0029] 90. First pH test piece;

[0030] 100. First Alkali Solution Replenishment Section;

[0031] 110. Carbon source storage department;

[0032] 120. First liquid level detection component;

[0033] 130. First culture medium replenishment section;

[0034] 140. First mounting bracket;

[0035] 150. Scrubber tower;

[0036] 161. Detergent storage section;

[0037] 170. Second pH test piece;

[0038] 180. Second alkali solution replenishment device;

[0039] 190. Second liquid level detection component;

[0040] 200. Water Replenishment Department;

[0041] 210. Gas-liquid phase contact packing;

[0042] 220. Second mounting bracket;

[0043] 230. Observation window;

[0044] 240. Exhaust fan;

[0045] 250. Baffle plate. Detailed Implementation

[0046] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0047] like Figure 1As shown, this utility model provides a waste gas treatment device, which includes an air inlet channel 10, a microbial purification tower 20, a microbial purification section 30, a waste gas concentration detection element 40, and a concentration adjustment structure 50. The air outlet of the air inlet channel 10 is connected to the air inlet of the microbial purification tower 20. The microbial purification section 30 is disposed inside the microbial purification tower 20 and is used to purify waste gas. The waste gas concentration detection element 40 is disposed on the air inlet channel 10 and is used to detect the concentration of waste gas in the end of the air inlet channel 10 connected to the microbial purification tower 20. The concentration adjustment structure 50 is used to adjust the concentration of waste gas in the microbial purification tower 20.

[0048] When wastewater is treated at a wastewater treatment plant, exhaust gas containing odorous pollutants such as VOCs (volatile organic compounds) and hydrogen sulfide is generated. This exhaust gas treatment device is used to treat exhaust gas containing odorous pollutants such as VOCs and hydrogen sulfide.

[0049] By applying the technical solution of this utility model, an exhaust gas concentration detection element 40 and a concentration adjustment structure 50 are set in the exhaust gas treatment device. This enables the detection of the concentration of exhaust gas entering the microbial purification tower 20. When the exhaust gas concentration detection element 40 detects that the exhaust gas concentration is higher than a preset value, the concentration adjustment structure 50 adjusts the concentration of the exhaust gas entering the microbial purification tower 20, thereby reducing the concentration of exhaust gas entering the microbial purification tower 20 and preventing the concentration of exhaust gas entering the microbial purification tower 20 from being too high. This ensures that the working environment of the microbial purification section 30, i.e., the concentration of the exhaust gas it comes into contact with, is stable, maintaining the good activity of the microorganisms in the microbial purification section 30, ensuring the good purification effect of the microbial purification section 30 on the exhaust gas, and improving the treatment efficiency and stability of the exhaust gas treatment device.

[0050] Specifically, when treating the exhaust gas, the exhaust gas first enters the exhaust gas treatment device through the air inlet channel 10. The exhaust gas concentration detection element 40 in the air inlet channel 10 detects the concentration of the exhaust gas in the end of the air inlet channel 10 that connects to the microbial purification tower 20. When the exhaust gas concentration detection element 40 detects that the concentration of the exhaust gas exceeds the preset value, the concentration of the exhaust gas is adjusted by the concentration adjustment structure 50 to reduce the concentration of the exhaust gas that subsequently enters the microbial purification tower 20. Then, the microbial purification section 30 in the microbial purification tower 20 purifies the exhaust gas.

[0051] In this embodiment, the microbial purification section 30 consists of clustered carbon fiber biological packing material and microbial strains that grow on biofilm.

[0052] In an embodiment of this solution, the exhaust gas treatment device further includes an induced draft fan 240, which is connected to the air inlet end of the air inlet channel 10. The induced draft fan 240 can introduce exhaust gas into the air inlet channel 10, and the amount of exhaust gas introduced into the air inlet channel 10 can also be adjusted by the induced draft fan 240.

[0053] Furthermore, the concentration regulating structure 50 includes a makeup air inlet, which is located on the side wall of the air inlet channel 10 and connected to the air inlet channel 10. The makeup air inlet has a first blocked state and a first open state. When the exhaust gas concentration detector 40 detects that the concentration of exhaust gas does not exceed the preset value, the concentration regulating structure 50 does not work, and the makeup air inlet is in the first blocked state. When the exhaust gas concentration detector 40 detects that the concentration of exhaust gas exceeds the preset value, the concentration regulating structure 50 starts to work, and the makeup air inlet switches from the first blocked state to the first open state. Outside air enters the air inlet channel 10 through the makeup air inlet, effectively reducing the concentration of exhaust gas that subsequently enters the microbial purification tower 20.

[0054] Furthermore, the exhaust gas treatment device also includes a makeup air device 60, which includes a makeup air pipe 61, a first flow regulator 62, and a makeup air pump 63. One end of the makeup air pipe 61 is connected to the makeup air inlet, the first flow regulator 62 is mounted on the makeup air pipe 61, and the makeup air pump 63 is mounted on the makeup air pipe 61. The makeup air device 60 enhances the regulation effect on the exhaust gas concentration, further ensuring the good purification effect of the exhaust gas treatment device on the exhaust gas.

[0055] Specifically, when it is necessary to adjust the concentration of exhaust gas, the air inlet switches to the first open state, and the air inlet pump 63 is started. Under the action of the air inlet pump 63, fresh air from the outside enters the air intake channel 10 through the air inlet pipe 61 and the air inlet, reducing the concentration of exhaust gas that will subsequently enter the microbial purification tower 20 in the air intake channel 10, thereby improving the efficiency of exhaust gas concentration adjustment. The first flow rate regulator 62 automatically adjusts the flow rate of fresh air in the air inlet pipe 61 based on the exhaust gas concentration detection information fed back by the exhaust gas concentration detector 40, so as to achieve precise control of the exhaust gas concentration. The above settings help to improve the purification effect and operational stability of the microbial purification unit 30 on exhaust gas.

[0056] Furthermore, an exhaust port is also provided on the side wall of the air inlet channel 10. The exhaust port is connected to the air inlet channel 10 and is located at the end of the make-up air port near the air inlet. The exhaust port has a second blocked state and a second open state. With this configuration, when it is necessary to reduce the concentration of exhaust gas, the make-up air device 60 introduces fresh air from the outside into the air inlet channel 10 while simultaneously keeping the exhaust port in the second open state. The high concentration of exhaust gas in the air inlet channel 10 can be discharged to the aeration tank of the sewage treatment plant through the exhaust port, thereby accelerating the adjustment efficiency of the exhaust gas concentration in the air inlet channel 10.

[0057] Furthermore, the waste gas treatment device also includes an exhaust device 70, which includes an exhaust pipe 71, a second flow regulator 72, and an exhaust pump 73. One end of the exhaust pipe 71 is connected to an exhaust port, and both the second flow regulator 72 and the exhaust pump 73 are mounted on the exhaust pipe 71. The exhaust device 70 further accelerates the discharge of high-concentration waste gas from the air inlet channel 10 to the outside, improving the efficiency of waste gas concentration regulation.

[0058] Specifically, when it is necessary to adjust the concentration of exhaust gas, the exhaust pump 73 is activated to promote the discharge of high-concentration exhaust gas in the air inlet channel 10 to the outside through the exhaust port and exhaust pipe 71, thereby accelerating the reduction of the exhaust gas content that will subsequently enter the microbial purification tower 20 in the air inlet channel 10, and further improving the efficiency of exhaust gas concentration adjustment. The second flow regulator 72 can precisely adjust the exhaust volume according to the exhaust gas concentration detected by the exhaust gas concentration detector 40. In conjunction with the first flow regulator 62 of the make-up air device 60, it can achieve bidirectional precise adjustment of the exhaust gas concentration, so that the exhaust gas concentration entering the microbial purification tower 20 is within the most suitable range.

[0059] In this embodiment of the solution, the waste gas treatment device also includes an aeration tank of the sewage treatment plant, and the end of the exhaust pipe 71 away from the air inlet channel 10 extends into the aeration tank of the sewage treatment plant to prevent waste gas from being discharged into the atmosphere.

[0060] Furthermore, the waste gas treatment device also includes a first spraying device, which comprises a culture medium storage section 81 and a first nozzle connected to each other. The culture medium storage section 81 is used to store the culture medium, and the first nozzle is located inside the microbial purification tower 20. The first spraying device sprays the culture medium onto the microbial purification section 30 through the first nozzle. By spraying the culture medium onto the microbial purification section 30 through the first spraying device, a suitable growth environment can be provided for the microorganisms in the microbial purification section 30, enabling the microbial purification section 30 to have high activity and ensuring a good purification effect of the microbial purification section 30 on the waste gas.

[0061] In this embodiment of the solution, the waste gas treatment device further includes a first circulation pipe, one end of which is connected to the bottom of the microbial purification tower 20, and the other end is connected to the culture medium storage section 81, so that the culture medium can achieve a circulation effect.

[0062] Furthermore, the waste gas treatment device also includes a first pH sensor 90 and a first alkali replenishment unit 100. The first pH sensor 90 is disposed on the culture medium storage unit 81 and is used to detect the pH of the culture medium in the culture medium storage unit 81. The first alkali replenishment unit 100 is connected to the culture medium storage unit 81 and is used to supply alkali to the culture medium storage unit 81. This configuration can maintain the pH value of the culture medium in the culture medium storage unit 81 within a preset range, which helps to improve the activity of microorganisms in the microbial purification unit 30.

[0063] In an embodiment of this solution, when the first pH detector 90 detects that the pH of the culture medium in the culture medium storage unit 81 is lower than a preset value, the first alkali replenishment unit 100 provides alkali to the culture medium storage unit 81 to increase the pH of the culture medium, maintain the pH of the culture medium within a suitable range for microbial growth, increase the activity of microorganisms in the microbial purification unit 30, and thereby improve the purification effect of the microbial purification unit 30 on the exhaust gas.

[0064] In this embodiment of the solution, the first pH detection element 90 and the first alkali replenishment unit 100 maintain the pH of the culture medium at around 9. A culture medium with a pH of around 9 is most helpful in maintaining the high activity of microorganisms in the microbial purification unit 30.

[0065] Furthermore, the waste gas treatment device also includes a carbon source storage unit 110, which is connected to the culture medium storage unit 81. The carbon source storage unit 110 is used to provide a carbon source to the culture medium storage unit 81. The carbon source storage unit 110 can supplement the nutrient solution in the culture medium storage unit 81 with the carbon source required for microbial growth, thereby enabling the microorganisms in the microbial purification unit 30 to grow better.

[0066] Furthermore, the exhaust gas treatment device also includes a first liquid level detection element 120 and a first culture medium replenishment unit 130. The first liquid level detection element 120 is disposed on the culture medium storage unit 81 and is used to detect the liquid level of the culture medium in the culture medium storage unit 81. The first culture medium replenishment unit 130 is connected to the culture medium storage unit 81 and is used to replenish the culture medium to the culture medium storage unit 81.

[0067] When the first liquid level detector 120 detects that the liquid level of the culture medium in the culture medium storage section 81 is lower than a certain preset liquid level value, the first culture medium replenishment section 130 automatically replenishes the culture medium in the culture medium storage section 81 to maintain sufficient culture medium in the culture medium storage section 81, thereby supporting the efficient treatment of waste gas by the microbial purification section 30 and enhancing the stability and reliability of the waste gas treatment device.

[0068] Furthermore, the waste gas treatment device includes a first mounting frame 140, which is located inside the microbial purification tower 20. The microbial purification unit 30 is mounted on the first mounting frame 140, and the first mounting frame 140 is detachably connected to the microbial purification tower 20. In this design, the first mounting frame 140 provides stable support for the microbial purification unit 30, which helps the microbial purification unit 30 to stably treat the waste gas. The detachable design of the first mounting frame 140 improves the convenience and efficiency of replacing and maintaining the microbial purification unit 30.

[0069] In this embodiment, multiple first mounting brackets 140 and microbial purification units 30 are provided. These first mounting brackets 140 are vertically distributed at intervals within the microbial purification tower 20, and each first mounting bracket 140 is equipped with the same number of microbial purification units 30. This arrangement extends the residence time of exhaust gas within the microbial purification tower 20, increases the purification time of the microbial purification units 30, and improves the purification effect on the exhaust gas.

[0070] In some embodiments of this solution, the side wall of the microbial purification tower 20 is provided with a plurality of first installation ports, and the plurality of first installation ports are provided in a one-to-one correspondence with a plurality of first installation brackets 140. The first installation brackets 140 extend into or out of the microbial purification tower 20 through the corresponding first installation ports.

[0071] The inner wall of the microbial purification tower 20 is also provided with multiple sets of first support bars, which are configured one-to-one with multiple first mounting brackets 140. Each set of first support bars is used to support the corresponding first mounting bracket 140.

[0072] In some other embodiments of this solution, the first mounting bracket 140 and the microbial purification tower 20 are configured to be non-removable.

[0073] In some embodiments of this solution, the first mounting frame 140 is a double-layer hollow frame, and the waste gas treatment device also includes multiple baffles 250. Each first mounting frame 140 has a baffle 250 in its interlayer. The baffle 250 is detachably connected to the first mounting frame 140. The baffle 250 can further slow down the flow speed of the waste gas in the microbial purification tower 20, increase the purification treatment time of the microbial purification section 30 on the waste gas, and improve the purification treatment effect of the waste gas.

[0074] Furthermore, the waste gas treatment device includes a scrubbing tower 150 and a scrubbing apparatus. The scrubbing tower 150 is located downstream of the microbial purification tower 20, and its inlet is connected to the outlet of the microbial purification tower 20. The scrubbing apparatus includes a detergent storage section 161 and a second nozzle connected to each other. The detergent storage section 161 stores detergent, and the second nozzle is installed inside the scrubbing tower 150. The scrubbing apparatus sprays detergent into the scrubbing tower 150 through the second nozzle. By using the scrubbing tower 150 and the scrubbing apparatus to scrub the waste gas purified by the microbial purification tower 20, residual pollutants in the waste gas can be further eliminated, thus achieving further purification of the waste gas.

[0075] Specifically, after the exhaust gas is purified by the microbial purification unit 30, it is discharged from the outlet of the microbial purification tower 20 and enters the scrubbing tower 150 through the inlet. The second nozzle sprays detergent into the scrubbing tower 150 to wash the exhaust gas in the scrubbing tower 150, effectively reducing the concentration of residual pollutants in the exhaust gas.

[0076] Furthermore, the exhaust gas treatment device also includes a second circulation pipe. One end of the first circulation pipe is connected to the bottom of the scrubbing tower 150, and the other end is connected to the detergent storage section 161. This arrangement enables the detergent to circulate.

[0077] Furthermore, multiple scrubbing towers 150 are provided, connected in series. The use of multiple scrubbing towers 150 effectively improves the scrubbing and purification effect on the exhaust gas.

[0078] In this embodiment of the solution, two washing towers 150 are used as an example for illustration. The first washing tower 150 is connected to both the microbial purification tower 20 and the second washing tower 150.

[0079] Furthermore, the washing device adapted to the first scrubbing tower 150 also includes a second pH sensor 170 and a second alkali replenishment device 180. The second pH sensor 170 is disposed on the detergent storage section 161 and is used to detect the pH of the alkali solution in the detergent storage section 161. The second alkali replenishment device 180 is connected to the detergent storage section 161 and is used to replenish alkali solution into the detergent storage section 161. This configuration can maintain the pH value of the detergent in the detergent storage section 161 within a preset range, which helps to improve the washing effect on the exhaust gas.

[0080] Specifically, when the second pH detector 170 detects that the pH of the detergent in the detergent storage section 161 is lower than the preset value, the second alkali replenishment device 180 provides alkali to the detergent storage section 161 to increase the pH of the detergent and maintain the pH of the detergent in a higher range, thereby performing alkali washing on the exhaust gas, more effectively removing residual harmful substances in the exhaust gas, and improving the washing and purification effect of the exhaust gas.

[0081] In this embodiment of the solution, the pH of the detergent is maintained at around 11 to 13 by the second pH detection element 170 and the second alkali replenishment device 180. The detergent with a pH of around 11 to 13 is most helpful in improving the washing effect of at least part of the washing device on the exhaust gas.

[0082] Furthermore, the washing device adapted to the first washing tower 150 also includes a second liquid level detection element 190 and a water replenishment unit 200. The second liquid level detection element 190 is disposed on the detergent storage section 161 and is used to detect the liquid level of the alkali solution in the detergent storage section 161. The water replenishment unit 200 is used to replenish water into the detergent storage section 161. When the second liquid level detection element 190 detects that the liquid level of the detergent in the detergent storage section 161 is lower than a preset liquid level value, the water replenishment unit 200 replenishes water into the detergent storage section 161, increasing the detergent dosage in the detergent storage section 161. This configuration allows for timely replenishment of water into the detergent storage section 161, maintaining a sufficient amount of detergent in the detergent storage section 161.

[0083] Understandably, for the first washing tower 150 and its adapted washing device, the second nozzle of the washing device sprays detergent into the first washing tower 150, and the detergent in the detergent storage section 161 gradually decreases. When the detergent content in the detergent storage section 161 falls below a preset value, the water replenishment section 200 replenishes water into the detergent storage section 161. Furthermore, during the detergent spraying or water replenishment process, if the second pH detector 170 detects that the pH of the detergent in the detergent storage section 161 is lower than the preset value, the second alkali replenishment device 180 simultaneously begins to replenish alkali into the detergent storage section 161 to raise the pH of the detergent and maintain the pH of the detergent at approximately 11 to 13.

[0084] Furthermore, the waste gas treatment device also includes a gas-liquid phase contact packing 210, which is installed inside the scrubbing tower 150 and located below the second nozzle. The gas-liquid phase contact packing 210 has a hollow structure. By placing the gas-liquid phase contact packing 210 below the second nozzle, when the second nozzle sprays scrubbing liquid, the gas-liquid phase contact packing 210 can absorb the scrubbing liquid. When the waste gas comes into contact with the gas-liquid phase contact packing 210, the contact area between the waste gas and the scrubbing liquid is effectively increased, thereby improving the scrubbing effect on the waste gas.

[0085] In this embodiment, the gas-liquid phase contact packing 210 is a spherical hollow packing. This configuration can further increase the residence time of the spray liquid on the gas-liquid phase contact packing 210 and enhance the gas-liquid reaction effect.

[0086] In this scheme, the washing device adapted to the second washing tower 150 only includes the second liquid level detection element 190 and the water replenishment part 200, and does not include the second pH detection element 170 and the second alkali replenishment device 180. With this configuration, the washing device adapted to the second washing tower 150 can perform washing with clean water. The exhaust gas treated by the second washing tower 150 will be discharged from the exhaust gas treatment device through the exhaust port of the second washing tower 150.

[0087] Furthermore, the waste gas treatment device also includes a second mounting bracket 220, located inside the scrubbing tower 150. The gas-liquid phase contact packing 210 is mounted on the second mounting bracket 220, and the second mounting bracket 220 is detachably connected to the scrubbing tower 150. The second mounting bracket 220 provides a stable installation space for the gas-liquid phase contact packing 210, which helps the gas-liquid phase contact packing 210 to stably treat the waste gas. The detachable design of the second mounting bracket 220 improves the maintenance and replacement process of the gas-liquid phase contact packing 210, thereby increasing the maintenance efficiency of the waste gas treatment device.

[0088] In this embodiment of the solution, multiple second mounting brackets 220 and gas-liquid phase contact packing 210 are provided within a scrubbing tower 150. These second mounting brackets 220 are vertically distributed at intervals within the scrubbing tower 150, and each second mounting bracket 220 is provided with the same number of gas-liquid phase contact packing 210. This arrangement slows down the flow rate of the exhaust gas within the scrubbing tower 150, prolongs the residence time of the exhaust gas within the scrubbing tower 150, and allows the gas-liquid phase contact packing 210 to more thoroughly scrub the exhaust gas.

[0089] In some embodiments of this solution, a plurality of second mounting ports are provided on the side wall of the washing tower 150, and the plurality of second mounting ports are provided in a one-to-one correspondence with a plurality of second mounting brackets 220. The second mounting brackets 220 extend into or out of the washing tower 150 through the corresponding second mounting ports.

[0090] The inner wall of the scrubbing tower 150 is also provided with multiple sets of second support bars, which are configured one-to-one with multiple second mounting brackets 220. Each set of second support bars is used to support the corresponding second mounting bracket 220.

[0091] In some other embodiments of this solution, the second mounting bracket 220 and the scrubbing tower 150 are configured to be non-removable.

[0092] In some embodiments of this solution, the second mounting frame 220 is a double-layer hollow frame, and a baffle plate 250 is provided in the interlayer of each second mounting frame 220. The baffle plate 250 and the second mounting frame 220 are detachably connected by a pull-out method. The baffle plate 250 can further slow down the flow speed of the exhaust gas in the scrubbing tower 150, so that the gas-liquid phase contact packing 210 can more fully scrub the exhaust gas.

[0093] In other embodiments of this solution, the second mounting bracket 220 is non-detachably connected to the scrubbing tower 150.

[0094] In this embodiment of the solution, both the microbial purification tower 20 and the washing tower 150 are provided with several observation windows 230, through which the interior of the microbial purification tower 20 and the washing tower 150 can be observed.

[0095] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0096] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0097] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0098] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0099] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0100] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waste gas treatment device, characterized in that, The waste gas treatment device includes: Air intake channel (10); The air outlet of the air inlet channel (10) is connected to the air inlet of the microbial purification tower (20); A microbial purification unit (30) is installed inside the microbial purification tower (20) and is used to purify waste gas; An exhaust gas concentration detection device (40) is installed on the air inlet channel (10). The exhaust gas concentration detection device (40) is used to detect the concentration of exhaust gas in the end of the air inlet channel (10) that is connected to the microbial purification tower (20). A concentration adjustment structure (50) is used to adjust the concentration of waste gas in the microbial purification tower (20).

2. The waste gas treatment device according to claim 1, characterized in that, The concentration adjustment structure (50) includes: The air supply port is located on the side wall of the air inlet channel (10) and is connected to the air inlet channel (10). The air supply port has a first blocked state and a first open state that are arranged opposite to each other.

3. The waste gas treatment device according to claim 2, characterized in that, The waste gas treatment device also includes: The air supply device (60) includes an air supply pipe (61), a first flow rate regulator (62), and an air supply pump (63). One end of the air supply pipe (61) is connected to the air supply port. The first flow rate regulator (62) is installed on the air supply pipe (61), and the air supply pump (63) is installed on the air supply pipe (61).

4. The waste gas treatment device according to claim 2, characterized in that, An exhaust port is also provided on the side wall of the air inlet channel (10). The exhaust port is connected to the air inlet channel (10). The exhaust port is located at the end of the air supply port that is close to the air inlet. The exhaust port has a second blocked state and a second open state that are arranged opposite to each other.

5. The waste gas treatment device according to claim 4, characterized in that, The waste gas treatment device also includes: The exhaust device (70) includes an exhaust pipe (71), a second flow regulator (72), and an exhaust pump (73). One end of the exhaust pipe (71) is connected to the exhaust port. The second flow regulator (72) and the exhaust pump (73) are both installed on the exhaust pipe (71).

6. The waste gas treatment device according to claim 1, characterized in that, The waste gas treatment device also includes: The first spraying device includes a culture medium storage section (81) and a first nozzle that are interconnected. The culture medium storage section (81) is used to store culture medium. The first nozzle is located inside the microbial purification tower (20). The first spraying device sprays onto the microbial purification section (30) through the first nozzle.

7. The waste gas treatment device according to claim 6, characterized in that, The waste gas treatment device also includes: A first pH sensor (90) and a first alkali replenishment unit (100) are provided. The first pH sensor (90) is disposed on the culture medium storage unit (81) and is used to detect the pH of the culture medium in the culture medium storage unit (81). The first alkali replenishment unit (100) is connected to the culture medium storage unit (81) and is used to provide alkali to the culture medium storage unit (81); and / or, A carbon source storage unit (110) is connected to the culture medium storage unit (81), and the carbon source storage unit (110) is used to provide a carbon source to the culture medium storage unit (81); and / or, A first liquid level detection element (120) and a first culture medium replenishment unit (130) are provided. The first liquid level detection element (120) is disposed on the culture medium storage unit (81) and is used to detect the liquid level of the culture medium in the culture medium storage unit (81). The first culture medium replenishment unit (130) is connected to the culture medium storage unit (81) and is used to replenish the culture medium to the culture medium storage unit (81).

8. The waste gas treatment device according to claim 1, characterized in that, The waste gas treatment device includes: The first mounting bracket (140) is located inside the microbial purification tower (20), and the microbial purification unit (30) is disposed on the first mounting bracket (140). The first mounting bracket (140) is detachably connected to the microbial purification tower (20).

9. The waste gas treatment device according to claim 6, characterized in that, The waste gas treatment device includes: A scrubbing tower (150) is located downstream of the microbial purification tower (20), and the air inlet of the scrubbing tower (150) is connected to the air outlet of the microbial purification tower (20). The washing device includes a detergent storage section (161) and a second nozzle that are interconnected. The detergent storage section (161) is used to store detergent. The second nozzle is disposed inside the washing tower (150). The washing device sprays detergent into the washing tower (150) through the second nozzle.

10. The waste gas treatment device according to claim 9, characterized in that, Multiple washing towers (150) are provided, and multiple washing towers (150) are connected in series.

11. The waste gas treatment device according to claim 10, characterized in that, At least part of the washing apparatus also includes: A second pH sensor (170) and a second alkali replenishment device (180) are provided. The second pH sensor (170) is disposed on the detergent storage section (161) and is used to detect the pH of the alkali solution in the detergent storage section (161). The second alkali replenishment device (180) is connected to the detergent storage section (161) and is used to replenish alkali solution into the detergent storage section (161); and / or, The second liquid level detection element (190) and the water replenishment part (200) are provided on the detergent storage part (161). The second liquid level detection element (190) is used to detect the liquid level of the alkaline solution in the detergent storage part (161). The water replenishment part (200) is used to replenish water into the detergent storage part (161).

12. The waste gas treatment device according to claim 9, characterized in that, The waste gas treatment device also includes: A gas-liquid phase contact packing (210) is installed inside the scrubbing tower (150). The gas-liquid phase contact packing (210) is located below the second nozzle and has a hollow structure.

13. The waste gas treatment device according to claim 12, characterized in that, The waste gas treatment device also includes: The second mounting bracket (220) is located inside the scrubbing tower (150), the gas-liquid phase contact packing (210) is disposed on the second mounting bracket (220), and the second mounting bracket (220) is detachably connected to the scrubbing tower (150); the baffle plate (250) is detachably disposed on the second mounting bracket (220).

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