Waste gas biological treatment device

Abstract

The utility model provides a waste gas biological treatment device, particularly relates to the technical field of waste gas treatment, and is used for solving the technical problem that the efficiency of a waste gas biological treatment method in the prior art is greatly influenced by humidity and temperature. The device comprises a contact tower and a controller, an enzyme reaction mechanism is arranged in the contact tower, a temperature and humidity presetting mechanism is arranged at a gas inlet of the contact tower, and temperature and humidity sensors are arranged on the inner sides of the contact tower and the temperature and humidity presetting mechanism; and a temperature and humidity adjusting mechanism is also arranged in the contact tower. According to the device disclosed by the utility model, the temperature and the humidity of the waste gas are firstly pretreated through the temperature and humidity pre-adjusting mechanism and are biologically treated through the enzyme reaction mechanism, and then the temperature and the humidity of the waste gas in the whole treatment process are monitored and fed back in real time through the temperature and humidity sensor, so that real-time adjustment can be carried out; the temperature and the humidity of the waste gas are in an optimal state during biological treatment, so that the adverse effects of the temperature and the humidity on waste gas treatment are reduced.

Description

Technical Field

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

[0002] The production process of amino acids generates waste gas containing sulfuric acid mist, sulfur-containing compounds, and ammonia.

[0003] Currently, the above-mentioned types of waste gases are typically treated using activated carbon adsorption followed by desorption and combustion. However, this method is costly. Therefore, biological treatment can be used to effectively reduce costs, but its efficiency is significantly affected by humidity and temperature. Thus, there is an urgent need for a biological waste gas treatment device that can minimize the adverse effects of temperature and humidity on waste gas treatment. Utility Model Content

[0004] The purpose of this invention is to provide a biological waste gas treatment device that can reduce the adverse effects of temperature and humidity on waste gas treatment.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] A waste gas biological treatment device includes a contact tower and a controller. The contact tower is equipped with an enzyme reaction mechanism inside. The gas inlet of the contact tower is equipped with a temperature and humidity pre-adjustment mechanism electrically connected to the controller. Temperature and humidity sensors electrically connected to the controller are provided on the inner sides of both the contact tower and the temperature and humidity pre-adjustment mechanism. The contact tower is also equipped with a temperature and humidity adjustment mechanism electrically connected to the controller.

[0007] Preferably, the contact tower is a baffle-type contact tower, and multiple trays are arranged alternately in the vertical direction inside the contact tower. The trays are located between the gas inlet and the liquid inlet of the contact tower. The enzyme reaction mechanism includes a biological enzyme carrier disposed on the tray. One end of the tray is fixedly connected to the inner wall of the contact tower, and the other end of the tray is connected to a downcomer. The top of the downcomer is provided with an overflow weir.

[0008] Preferably, the temperature and humidity pre-adjustment structure includes an installation pipe connected to the gas inlet of the contact tower, the outer end of the installation pipe being connected to the cold air outlet of the vortex tube cooler, an exhaust gas inlet being provided on the side wall of the installation pipe, and a silica gel rotor dehumidification assembly and an atomizing humidification assembly being provided inside the installation pipe, with the silica gel rotor dehumidification assembly and the atomizing humidification assembly being disposed between the exhaust gas inlet and the contact tower.

[0009] Preferably, the silicone dehumidifier assembly includes a honeycomb silicone dehumidifier that is axially rotatably disposed inside the mounting tube. Turbine teeth are arranged around the outer side of the dehumidifier. A motor electrically connected to the controller is disposed inside the mounting tube. A worm gear that meshes with the turbine teeth is disposed on the output shaft of the motor.

[0010] Preferably, the atomizing humidification assembly includes an ultrasonic atomizing module that is evenly distributed around the inner side of the mounting tube, and the ultrasonic atomizing module is electrically connected to the controller.

[0011] Preferably, the temperature and humidity sensor is the distributed fiber optic temperature and humidity sensor, which is installed inside the exhaust gas inlet, the mounting pipe, and the contact tower.

[0012] Preferably, the temperature and humidity regulating mechanism includes a plurality of semiconductor cooling chips evenly distributed around and attached to the outer wall of the contact tower, the semiconductor cooling chips being electrically connected to the controller; and also includes a humidity compensation film disposed on the inner wall of the contact tower.

[0013] Preferably, the sidewall interlayer of the contact tower is filled with an octadecane foam layer.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0015] This utility model has a reasonable design and simple structure. It first pre-treats the temperature and humidity of the waste gas through a temperature and humidity pre-adjustment mechanism, and then performs biological treatment through an enzyme reaction mechanism. Secondly, the device monitors and provides feedback on the temperature and humidity of the waste gas in real time throughout the treatment process through temperature and humidity sensors. This allows for timely adjustment through the corresponding temperature and humidity pre-adjustment and adjustment mechanisms, ensuring that the temperature and humidity of the waste gas are in the optimal state during biological treatment, thereby reducing the adverse effects of temperature and humidity on waste gas treatment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of a waste gas biological treatment device provided by this utility model;

[0018] Figure 2 Right view of a waste gas biological treatment device provided by this utility model;

[0019] Figure 3 for Figure 2 A cross-sectional view of section A in the middle.

[0020] Icons: 1. Contact tower; 2. Gas inlet; 3. Tower plate; 4. Liquid inlet; 5. Bio-enzyme carrier; 6. Downcomer; 7. Overflow weir; 8. Installation pipe; 9. Vortex tube cooler; 10. Cold air outlet; 11. Exhaust gas inlet; 12. Honeycomb silicone rotor; 13. Turbine gear; 14. Motor; 15. Worm gear; 16. Ultrasonic atomization module; 17. Semiconductor refrigeration chip; 18. Gas outlet; 19. Liquid outlet; 20. Transparent window; 21. Multi-stage filter; 22. Compressed air inlet; 23. Hot air outlet. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] A waste gas biological treatment device, in some embodiments, such as Figures 1-3 As shown, the system includes a contact tower 1 and a controller. The controller can be a Siemens S7-1200 series industrial-grade PLC controller. The contact tower 1 is equipped with an enzyme reaction mechanism inside. The gas inlet 2 of the contact tower 1 is equipped with a temperature and humidity pre-adjustment mechanism electrically connected to the controller. Temperature and humidity sensors electrically connected to the controller are installed on the inner sides of both the contact tower 1 and the temperature and humidity pre-adjustment mechanism. The contact tower 1 is also equipped with a temperature and humidity adjustment mechanism electrically connected to the controller.

[0028] In practical use, the waste gas (hereinafter referred to as waste gas) undergoes temperature and humidity pre-adjustment through the temperature and humidity pre-adjustment mechanism to ensure it meets the temperature and humidity requirements for bio-enzyme treatment. It then enters the enzyme reaction mechanism in contact tower 1 for degradation. The temperature and humidity sensors monitor the waste gas's temperature and humidity in real time, allowing for timely adjustments to the pre-adjustment mechanism's settings. Furthermore, during bio-enzyme treatment, the temperature and humidity sensors inside contact tower 1 also monitor the waste gas's temperature and humidity in real time and adjust it through the temperature and humidity regulation mechanism. This device pre-treats the waste gas's temperature and humidity through the temperature and humidity pre-adjustment mechanism before bio-treatment through the enzyme reaction mechanism. Secondly, the device uses temperature and humidity sensors to monitor and provide feedback on the waste gas's temperature and humidity throughout the entire treatment process, enabling timely adjustments through the pre-adjustment and regulation mechanisms to ensure the waste gas's temperature and humidity are optimal during bio-treatment.

[0029] In some embodiments, such as Figure 1 , Figure 3As shown, the contact tower 1 is a baffle-type contact tower 1. Multiple trays 3 are arranged alternately in the vertical direction inside the contact tower 1. The trays 3 are located between the gas inlet 2 and the liquid inlet 4 of the contact tower 1. The enzyme reaction mechanism includes a biological enzyme carrier 5 disposed on the tray 3. One end of the tray 3 is fixedly connected to the inner wall of the contact tower 1, and the other end of the tray 3 is connected to a downcomer 6. An overflow weir 7 is provided at the top of the downcomer 6. The biological enzyme carrier 5 is made of ceramic packing material, which has a high specific surface area and porosity, and is suitable for microbial attachment to form a biofilm.

[0030] In practical use, the culture liquid enters the contact tower 1 through the liquid inlet 4 and, under the action of gravity, flows from top to bottom through each tray 3, exiting at the liquid outlet 19 at the bottom of the tower. The waste gas enters the contact tower 1 through the gas inlet 2 and, driven by the pressure difference, flows from bottom to top through each tray 3, exiting at the gas outlet 18 at the top of the tower. Because the trays 3 of the baffle-type contact tower 1 are staggered vertically and the other end of each tray 3 is connected to a downcomer 6, the waste gas's treatment path inside the contact tower 1 forms a continuous S-shaped flow path. This increases the contact time between the biological enzyme carrier 5 on the tray 3 and the waste gas, improving the effectiveness of biological treatment.

[0031] It is worth mentioning that the bioenzymes used in this device can be ammonia monooxygenase (for ammonia), sulfide oxidase (for sulfur-containing compounds), and sulfate reductase (for sulfuric acid mist); and before the exhaust gas enters this device for treatment, it needs to be pretreated in a scrubbing tower to dissolve the sulfuric acid mist into sulfate (SO4). 2- The waste gas treated by this device will then proceed to the next step of catalytic oxidation for further purification.

[0032] In some embodiments, such as Figure 1 , Figure 3 As shown, the temperature and humidity pre-adjustment structure includes an installation pipe 8 connected to the gas inlet 2 of the contact tower 1. The outer end of the installation pipe 8 is connected to the cold air outlet 10 of the vortex tube cooler 9. The compressed air inlet 22 of the vortex tube cooler 9 is connected to compressed air. The hot air outlet 23 of the vortex tube cooler 9 is connected to a corresponding collection pipeline. An exhaust gas inlet 11 is provided on the side wall of the installation pipe 8. A silica gel rotor dehumidification component and an atomizing humidification component are provided inside the installation pipe 8. The silica gel rotor dehumidification component and the atomizing humidification component are located between the exhaust gas inlet 11 and the contact tower 1.

[0033] In practical use, the vortex tube cooler 9 blows cold air into the mounting pipe 8, thereby rapidly cooling the exhaust gas. Furthermore, since the cold air outlet 10 of the vortex tube cooler 9 is connected to the outer end of the connecting pipe, the cold air can assist the exhaust gas in entering the silica gel rotor dehumidification component and the atomizing humidification component.

[0034] In some embodiments, such as Figure 1 , Figure 3 As shown, the silicone dehumidification assembly includes a honeycomb silicone dehumidifier 12 axially rotatably disposed inside the mounting tube 8. Turbine teeth 13 are arranged around the outer side of the dehumidifier. A motor 14 electrically connected to the controller is disposed inside the mounting tube 8. A worm gear 15 meshing with the turbine teeth 13 is disposed on the output shaft of the motor 14.

[0035] In practical use, when the humidity is greater than the corresponding level, the motor 14 starts and drives the honeycomb silicone rotor 12 to rotate through the worm gear 15 and turbine gear 13, thereby adsorbing and dehydrating the exhaust gas.

[0036] In some embodiments, such as Figure 1 , Figure 3 As shown, the atomizing humidification assembly includes an ultrasonic atomizing module 16 that is evenly distributed around the inner side of the mounting tube 8, and the ultrasonic atomizing module 16 is electrically connected to the controller.

[0037] In practical use, when the humidity of the exhaust gas is too low, the ultrasonic atomization module 16 sprays nano-level water mist onto the exhaust gas to increase its humidity.

[0038] In some embodiments, the temperature and humidity sensor is the distributed optical fiber temperature and humidity sensor, which is disposed inside the exhaust gas inlet 11, the mounting pipe 8, and the contact tower 1.

[0039] In practical use, the distributed fiber optic temperature and humidity sensors are arranged along the inner wall of the exhaust gas inlet 11, the mounting pipe 8, and the contact tower 1, which can simultaneously obtain the spatial distribution of exhaust gas temperature and humidity at the measured location and the information on its changes over time.

[0040] In some embodiments, such as Figures 1-3 As shown, the temperature and humidity control mechanism includes a plurality of semiconductor cooling chips 17 evenly distributed around the outer wall of the contact tower 1, the semiconductor cooling chips 17 being electrically connected to the controller; it also includes a humidity compensation film disposed on the inner wall of the contact tower 1.

[0041] In practical use, precise temperature control is achieved by controlling the semiconductor cooling chip 17 via a controller. The humidity compensation membrane is a composite of a Nafi-on proton exchange membrane and a hydrophobic and breathable substrate (such as expanded polytetrafluoroethylene) (the Nafi-on proton exchange membrane automatically balances the humidity difference on both sides of the membrane) and covers the inner wall of the contact tower 1 to ensure that the exhaust gas fully contacts the membrane surface during flow. In addition, the coverage at gas inlet 2 (relatively high humidity) and gas outlet 18 (relatively low humidity) needs to be set differently. The coverage at gas inlet 2 is higher to facilitate rapid dehumidification, while the coverage at gas inlet 18 is reduced to avoid excessive drying.

[0042] In some embodiments, such as Figure 3 As shown, the sidewall interlayer of the contact tower 1 is filled with an octadecane foam layer.

[0043] In practical applications, the octadecane foam layer has good energy storage and temperature regulation properties, which can alleviate the temperature fluctuations between day and night inside the contact tower 1.

[0044] In some other embodiments, the difference from the embodiments described above is as follows: Figure 3 As shown, the exhaust gas inlet 11 is also equipped with a multi-stage filter screen 21 to remove particulate matter in the exhaust gas and protect the activity of biological enzymes.

[0045] In some other embodiments, the difference from the embodiments described above is as follows: Figures 1-3 As shown, a transparent viewing window 20 is also provided on the side wall of the contact tower 1 to facilitate staff to observe the internal conditions of the contact tower 1.

[0046] The operating principle of this device is as follows:

[0047] This device first pre-treats the temperature and humidity of the exhaust gas through a temperature and humidity pre-adjustment mechanism, and then performs biological treatment through an enzyme reaction mechanism. Secondly, the device monitors and provides feedback on the temperature and humidity of the exhaust gas in real time throughout the entire treatment process through temperature and humidity sensors, so that the temperature and humidity of the exhaust gas can be adjusted in real time through the corresponding temperature and humidity pre-adjustment mechanism and temperature and humidity adjustment mechanism, so that the temperature and humidity of the exhaust gas are in the optimal state during biological treatment.

[0048] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A biological waste gas treatment apparatus, characterized by comprising: The utility model provides a contact tower (1) and controller, the inside of contact tower (1) is equipped with enzyme reaction mechanism, the gas inlet (2) of contact tower (1) is equipped with with the temperature and humidity pre -adjusting mechanism of controller electricity is connected, the inside of contact tower (1) and temperature and humidity pre -adjusting mechanism is equipped with with the temperature and humidity sensor of controller electricity is connected, the inside of contact tower (1) is still equipped with with the temperature and humidity adjusting mechanism of controller electricity is connected.

2. A biological waste gas treatment apparatus according to claim 1, wherein The contact tower (1) adopts a contact tower of baffle type, a plurality of tower plates (3) are staggered and spaced apart in the vertical direction inside the contact tower (1), the tower plates (3) are arranged between the gas inlet (2) and the liquid inlet (4) of the contact tower (1), the enzyme reaction mechanism comprises a biological enzyme carrier (5) arranged on the tower plates (3), one end of the tower plates (3) is fixedly connected with the inner wall of the contact tower (1), the other end of the tower plates (3) is connected with a downcomer (6), and the top of the downcomer (6) is provided with an overflow weir (7).

3. A biological waste treatment apparatus according to claim 1, wherein The temperature and humidity pre-adjusting structure comprises a mounting pipe (8) connected to the gas inlet (2) of the contact tower (1), the outer end of the mounting pipe (8) is connected with the cold air outlet (10) of a vortex pipe cooler (9), the sidewall of the mounting pipe (8) is provided with a waste gas inlet (11), the inside of the mounting pipe (8) is provided with a silica gel rotary wheel dehumidifying assembly and an atomizing humidifying assembly, and the silica gel rotary wheel dehumidifying assembly and the atomizing humidifying assembly are arranged between the waste gas inlet (11) and the contact tower (1).

4. A biological waste gas treatment apparatus according to claim 3, wherein The silica gel rotary wheel dehumidifying assembly comprises a honeycomb-shaped silica gel rotary wheel (12) arranged in rotation in the axial direction inside the mounting pipe (8), the outer side of the rotary wheel is surrounded by turbine teeth (13), and the mounting pipe (8) is provided with a motor (14) electrically connected with the controller, and the output shaft of the motor (14) is provided with a worm (15) engaged with the turbine teeth (13).

5. A biological waste treatment apparatus according to claim 3, wherein The atomizing humidifying assembly comprises ultrasonic atomizing modules (16) uniformly distributed on the inner side of the mounting pipe (8), and the ultrasonic atomizing modules (16) are electrically connected with the controller.

6. A biological waste treatment apparatus according to claim 3, wherein The temperature and humidity sensor adopts a distributed optical fiber temperature and humidity sensor, and is arranged on the inner side of the waste gas inlet (11), the mounting pipe (8) and the contact tower (1).

7. A biological exhaust treatment device according to claim 1, wherein The temperature and humidity adjusting mechanism comprises a plurality of semiconductor refrigerating fins (17) uniformly attached to the outer wall of the contact tower (1), the semiconductor refrigerating fins (17) are electrically connected with the controller, and a humidity compensation film is arranged on the inner wall of the contact tower (1).

8. A biological waste treatment apparatus according to claim 1, wherein An octadecane foam layer is filled in the interlayer of the side wall of the contact tower (1).

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