Multi-stage exhaust gas deodorizer

Abstract

The utility model discloses a multi -section type waste gas deodorization machine relates to waste gas treatment equipment technical field, including air inlet frame, pretreatment frame and ultrasonic atomization frame, the top of air inlet frame is equipped with the air inlet, the bottom of air inlet frame is equipped with pretreatment frame, the bottom of pretreatment frame is equipped with ultrasonic atomization frame, the bottom of ultrasonic atomization frame is equipped with biological purification frame, the bottom of biological purification frame is equipped with tail gas detection frame, air inlet frame, pretreatment frame, ultrasonic atomization frame, biological purification frame and tail gas detection frame all are sealedly connected through the flange between, the bottom sealed coupling of tail gas detection frame has negative pressure drive frame, the inside of negative pressure drive frame is equipped with frequency conversion fan. The utility model discloses a multi -mechanism collaborative processing of physical adsorption, photocatalytic decomposition, chemical atomization reaction and biological membrane degradation, has solved the single processing mechanism of existing easy saturation, the problem of incomplete deodorization, and deodorization efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment equipment, specifically to a multi-stage waste gas deodorization machine. Background Technology

[0002] Waste gas treatment refers to the pretreatment of waste gas generated in industrial sites and factory workshops before its external discharge to meet emission standards. Multi-stage waste gas deodorization machines are often used in waste gas treatment.

[0003] However, existing waste gas deodorization equipment mainly includes single adsorption, spray, and biological filter types. Single treatment mechanisms are prone to saturation, resulting in incomplete deodorization and frequent filter media replacement. Spray equipment has large atomized chemical particles, leading to insufficient contact with waste gas and significant chemical waste. Biological filter equipment has a slow reaction speed, is greatly affected by humidity and temperature, and has a short maintenance cycle. Multi-stage equipment is mostly fixedly connected, with each stage working independently without coordination, and is inconvenient to disassemble and maintain. In addition, it lacks real-time monitoring and dynamic adjustment functions and cannot adaptively adjust operating parameters according to waste gas concentration. Therefore, we propose a multi-stage waste gas deodorization machine. Utility Model Content

[0004] In view of the problems existing in the current multi-stage exhaust gas deodorization machine, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a multi-stage exhaust gas deodorization machine, which solves the problems of existing exhaust gas deodorization equipment, mainly including single adsorption type, spray type, biological filter type, etc. Single treatment mechanism is easy to saturate, deodorization is incomplete, and filter media needs to be replaced frequently. Spray equipment has large atomized particle size of agent, which does not have sufficient contact with exhaust gas and wastes a lot of agent. Biological filter equipment has slow reaction speed, is greatly affected by humidity and temperature, and has short maintenance cycle. Multi-stage equipment is mostly fixed connection, each stage works independently without coordination, and is inconvenient to disassemble and maintain. At the same time, it lacks real-time monitoring and dynamic adjustment functions and cannot adaptively adjust the operating parameters according to the exhaust gas concentration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-stage exhaust gas deodorization machine includes an air inlet frame, a pretreatment frame, and an ultrasonic atomizing frame. The air inlet frame has an air inlet at its top, a pretreatment frame at its bottom, an ultrasonic atomizing frame at its bottom, a biological purification frame at its bottom, and an exhaust gas detection frame at its bottom. The air inlet frame, pretreatment frame, ultrasonic atomizing frame, biological purification frame, and exhaust gas detection frame are all connected by flange seals. A negative pressure drive frame is sealed to the bottom of the exhaust gas detection frame, and a variable frequency fan is installed inside the negative pressure drive frame. A reagent tank is fixedly installed on one side of the ultrasonic atomizing frame.

[0007] Preferably, the air intake frame has a conical flow divider cone inside, the surface of the conical flow divider cone has multiple guide vanes, the bottom of the air intake frame has a flow equalization mesh plate, the pretreatment frame has a modified activated carbon fiber filter media module fixedly installed inside, and the top of the pretreatment frame has a UVLED array.

[0008] Preferably, an annular liquid distribution tube is fixedly installed inside the ultrasonic atomizing frame, and an atomizing nozzle is inclinedly provided at the bottom of the annular liquid distribution tube. A pH monitor is provided on one side of the ultrasonic atomizing frame, and the probe of the pH monitor extends into the ultrasonic atomizing frame. A drug supply pump is provided on one side of the ultrasonic atomizing frame, one end of the drug supply pump extends into the drug tank, and the other end of the drug supply pump is connected through to one side of the annular liquid distribution tube.

[0009] Preferably, the biological purification frame is provided with a honeycomb biological carrier inside, the honeycomb biological carrier is provided with multiple axial flow channels inside, the inner walls of the multiple axial flow channels are provided with composite microbial membranes, and the bottom of the honeycomb biological carrier is provided with a humidity sensor.

[0010] Preferably, a spray pipe is fixedly installed inside the biological purification frame, and multiple atomizing nozzles are provided at the bottom of the spray pipe. A conical liquid collection tank is provided at the bottom of the inner side of the biological purification frame. A circulation pipe is provided on one side of the bottom of the conical liquid collection tank. The other end of the circulation pipe extends into the inside of the reagent tank. One side of the spray pipe is connected to the circulation pipe. A circulation pump is provided on the surface of the circulation pipe. A drain outlet is provided on the other side of the bottom of the conical liquid collection tank.

[0011] Preferably, the exhaust gas detection frame is equipped with an odor sensor and a particulate matter sensor.

[0012] Preferably, the surface of the biological purification frame is equipped with a controller.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention solves the problems of easy saturation and incomplete deodorization of existing single treatment mechanisms by using a multi-mechanism synergistic treatment of physical adsorption, photocatalytic decomposition, chemical atomization reaction and biofilm degradation. It has a high deodorization efficiency. At the same time, ultrasonic atomization technology reduces the particle size of the agent and increases the contact area with the exhaust gas. The reflux liquid recycling design and pH closed-loop adjustment avoid agent waste and improve agent utilization. The variable frequency fan dynamically adjusts the wind speed according to the exhaust gas concentration and pressure feedback, thereby reducing energy consumption.

[0014] This invention features a biological purification section that maintains a suitable living environment for microorganisms through a humidity-linked spray system, reducing the impact of ambient temperature and humidity on treatment efficiency. Its multi-segment structure is adaptable to high-concentration and complex waste gases, making it suitable for various scenarios such as chemical plants, waste treatment plants, and sewage treatment plants. Furthermore, the various modules, including the air inlet frame and pretreatment frame, are connected by flange seals for quick disassembly and assembly. The modified activated carbon fiber filter media module is easy to replace, and the conical liquid collection tank drain outlet facilitates the cleaning of sediment. The controller integrates real-time monitoring functions, allowing for intuitive understanding of equipment operating parameters and supporting adaptive adjustment of operating status based on waste gas concentration, reducing manual intervention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the biological purification frame of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Air inlet frame; 2. Pretreatment frame; 3. Ultrasonic atomizing frame; 4. Air inlet; 5. Biological purification frame; 6. Exhaust gas detection frame; 7. Negative pressure drive frame; 8. Variable frequency fan; 9. Chemical tank; 10. Conical diversion cone; 11. Guide vane; 12. Flow equalization mesh plate; 13. Modified activated carbon fiber filter media module; 14. UV LED array; 15. Annular liquid distribution pipe; 16. Atomizing nozzle; 17. pH monitor; 18. Chemical supply pump; 19. Honeycomb biological carrier; 20. Axial guide channel; 21. Composite microbial membrane; 22. Humidity sensor; 23. Spray pipe; 24. Atomizing nozzle; 25. Conical liquid collection tank; 26. Circulation pipe; 27. Circulation pump; 28. Sewage outlet; 29. ​​Odor sensor; 30. Particulate matter sensor; 31. Controller; 32. Ultrasonic atomizer. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model discloses a multi-stage exhaust gas deodorization machine.

[0020] This utility model provides, for example Figure 1-3 The multi-stage exhaust gas deodorization machine shown includes an air inlet frame 1, a pretreatment frame 2, and an ultrasonic atomizing frame 3. The air inlet frame 1 has an air inlet 4 at its top, the pretreatment frame 2 at its bottom, the ultrasonic atomizing frame 3 at its bottom, a biological purification frame 5 at its bottom, and an exhaust gas detection frame 6 at its bottom. The air inlet frame 1, pretreatment frame 2, ultrasonic atomizing frame 3, biological purification frame 5, and exhaust gas detection frame 6 are all connected by flange seals. The bottom of the exhaust gas detection frame 6 is sealed with a negative pressure drive frame 7, and a variable frequency fan 8 is installed inside the negative pressure drive frame 7. A reagent tank 9 is fixedly installed on one side of the ultrasonic atomizing frame 3, and the fan speed is adjusted according to the exhaust gas detection data feedback.

[0021] This utility model discloses a multi-stage exhaust gas deodorization machine. The air inlet frame 1 is provided with a conical diversion cone 10 inside. The surface of the conical diversion cone 10 is provided with multiple guide vanes 11. The bottom of the air inlet frame 1 is provided with a flow equalization mesh plate 12. The pretreatment frame 2 is fixedly installed with a modified activated carbon fiber filter media module 13. The top of the pretreatment frame 2 is provided with a UV LED array 14 to achieve a synergistic effect of physical adsorption and photocatalytic decomposition, and to initially degrade malodorous substances.

[0022] This utility model discloses a multi-stage exhaust gas deodorization machine. An annular liquid distribution pipe 15 is fixedly installed inside the ultrasonic atomizing frame 3. An atomizing nozzle 16 is inclinedly positioned at the bottom of the annular liquid distribution pipe 15. A pH monitor 17 is installed on one side of the ultrasonic atomizing frame 3, with its probe extending into the ultrasonic atomizing frame 3. A reagent replenishment pump 18 is installed on one side of the ultrasonic atomizing frame 3, with one end extending into the reagent tank 9 and the other end of the pump penetratingly connected to one side of the annular liquid distribution pipe 15, maintaining the optimal reagent reaction concentration and improving deodorization efficiency.

[0023] This utility model discloses a multi-stage exhaust gas deodorization machine. The biological purification frame 5 is provided with a honeycomb biological carrier 19. The honeycomb biological carrier 19 is provided with multiple axial guide channels 20. The inner wall of each of the multiple axial guide channels 20 is provided with a composite microbial membrane 21. The bottom of the honeycomb biological carrier 19 is provided with a humidity sensor 22 to deeply degrade residual malodorous substances.

[0024] This utility model discloses a multi-stage exhaust gas deodorization machine. A spray pipe 23 is fixedly installed inside the biological purification frame 5. Multiple atomizing nozzles 24 are provided at the bottom of the spray pipe 23. A conical liquid collection tank 25 is provided at the bottom of the inner side of the biological purification frame 5. A circulation pipe 26 is provided on one side of the bottom of the conical liquid collection tank 25. The other end of the circulation pipe 26 extends into the agent tank 9. One side of the spray pipe 23 is connected to the circulation pipe 26. A circulation pump 27 is provided on the surface of the circulation pipe 26. A drain outlet 28 is provided on the other side of the bottom of the conical liquid collection tank 25 to maintain suitable humidity and ensure microbial activity.

[0025] This utility model discloses a multi-stage exhaust gas deodorization machine. The exhaust gas detection frame 6 is equipped with an odor sensor 29 and a particulate matter sensor 30 to monitor exhaust gas indicators in real time and transmit the detection data to the controller.

[0026] This utility model discloses a multi-stage exhaust gas deodorization machine, wherein the surface of the biological purification frame 5 is equipped with a controller 31 to improve the automation level of the device.

[0027] During operation, exhaust gas enters through the top inlet 4 of the inlet frame 1. Under the action of the conical diversion cone 10 and surface guide vanes 11, a rotating airflow is formed. This airflow is then evenly distributed through the bottom flow equalization mesh 12, preventing uneven local loads in subsequent treatment sections. The evenly distributed exhaust gas enters the pretreatment frame 2, where the modified activated carbon fiber filter media module 13 physically adsorbs large molecules and particulate matter. Simultaneously, the top UVLED array 14 emits dual-band ultraviolet light, exciting the photocatalyst loaded on the filter media surface, achieving a synergistic effect of physical adsorption and photocatalytic decomposition, initially degrading odorous substances. The pretreated exhaust gas then enters the ultrasonic atomization frame 3, where the annular liquid distribution pipe 15 sprays atomized agents through inclined atomizing nozzles 16. Ultrasonic atomization technology makes the agent particles finer, ensuring full contact and reaction with the exhaust gas. A pH monitor 17 monitors the pH of the reaction environment in real time. The value, together with the reagent replenishment pump 18, forms a closed-loop control to maintain the optimal reaction concentration of the reagent and improve deodorization efficiency. The waste gas after the reaction enters the biological purification frame 5 and is evenly permeated through the axial guide channel 20 inside the honeycomb biological carrier 19. The composite microbial film 21 on the tank wall deeply degrades residual malodorous substances. The humidity sensor 22 monitors the humidity of the carrier in real time and feeds back to the controller 31 to adjust the operation of the circulation pump 27. The return liquid is sprayed onto the carrier through the atomizing nozzle 24 of the spray pipe 23 to maintain suitable humidity and ensure the activity of microorganisms. The purified exhaust gas enters the exhaust gas detection box 6. The odor sensor 29 and the particulate matter sensor 30 monitor the exhaust gas indicators in real time. The detection data is transmitted to the controller 31. If the exhaust gas meets the standards, the controller 31 controls the variable frequency fan 8 in the negative pressure drive box 7 to run and discharge the exhaust gas. If it does not meet the standards, the controller 31 adjusts the fan speed or starts the chemical replenishment pump 18 to replenish the chemical to ensure that the emission meets the standards. The drain port 28 at the bottom of the conical liquid collection tank 25 can periodically discharge the sediment. Each treatment box is connected by a flange seal for easy disassembly and maintenance.

[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage exhaust gas deodorization machine, comprising an air inlet frame (1), a pretreatment frame (2), and an ultrasonic atomizing frame (3), characterized in that, The top of the air intake frame (1) is provided with an air inlet (4), the bottom of the air intake frame (1) is provided with a pretreatment frame (2), the bottom of the pretreatment frame (2) is provided with an ultrasonic atomizing frame (3), the bottom of the ultrasonic atomizing frame (3) is provided with a biological purification frame (5), the bottom of the biological purification frame (5) is provided with an exhaust gas detection frame (6), the air intake frame (1), the pretreatment frame (2), the ultrasonic atomizing frame (3), the biological purification frame (5) and the exhaust gas detection frame (6) are all connected by a flange seal, the bottom of the exhaust gas detection frame (6) is sealed with a negative pressure drive frame (7), the negative pressure drive frame (7) is provided with a variable frequency fan (8), and a medicine box (9) is fixedly installed on one side of the ultrasonic atomizing frame (3).

2. The multi-stage exhaust gas deodorization machine according to claim 1, characterized in that, The air intake frame (1) is provided with a conical flow divider cone (10) inside. The surface of the conical flow divider cone (10) is provided with multiple guide vanes (11). The bottom of the air intake frame (1) is provided with a flow equalization mesh plate (12). The pretreatment frame (2) is fixedly installed with a modified activated carbon fiber filter media module (13). The top of the pretreatment frame (2) is provided with a UVLED array (14).

3. The multi-stage exhaust gas deodorization machine according to claim 1, characterized in that, An annular liquid distribution tube (15) is fixedly installed inside the ultrasonic atomizing frame (3). An atomizing nozzle (16) is inclined at the bottom of the annular liquid distribution tube (15). A pH monitor (17) is provided on one side of the ultrasonic atomizing frame (3). The probe of the pH monitor (17) extends into the ultrasonic atomizing frame (3). A drug supply pump (18) is provided on one side of the ultrasonic atomizing frame (3). One end of the drug supply pump (18) extends into the drug tank (9), and the other end of the drug supply pump (18) is connected through to one side of the annular liquid distribution tube (15).

4. The multi-stage exhaust gas deodorization machine according to claim 1, characterized in that, The biological purification frame (5) is provided with a honeycomb biological carrier (19), and the honeycomb biological carrier (19) is provided with multiple axial flow channels (20). The inner walls of the multiple axial flow channels (20) are provided with composite microbial membranes (21). The bottom of the honeycomb biological carrier (19) is provided with a humidity sensor (22).

5. The multi-stage exhaust gas deodorization machine according to claim 1, characterized in that, The biological purification frame (5) is fixedly installed with a spray pipe (23). The bottom of the spray pipe (23) is provided with multiple atomizing nozzles (24). The bottom of the inner side of the biological purification frame (5) is provided with a conical liquid collection tank (25). A circulation pipe (26) is provided on one side of the bottom of the conical liquid collection tank (25). The other end of the circulation pipe (26) extends into the inside of the medicine tank (9). One side of the spray pipe (23) is connected to the circulation pipe (26). A circulation pump (27) is provided on the surface of the circulation pipe (26). A drain outlet (28) is provided on the other side of the bottom of the conical liquid collection tank (25).

6. The multi-stage exhaust gas deodorization machine according to claim 1, characterized in that, The exhaust gas detection frame (6) is equipped with an odor sensor (29) and a particulate matter sensor (30).

7. The multi-stage exhaust gas deodorization machine according to claim 1, characterized in that, The surface of the biological purification frame (5) is provided with a controller (31).

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