Deodorizing and sterilizing system for livestock breeding
Through the photocatalytic treatment device decomposition and hydroxyl radical sterilization, combined with the adsorption treatment of acidic and alkaline scrubbers, the problem of waste gas treatment in livestock breeding is solved, and efficient odor removal and sterilization effects are achieved.
Patent Information
- Application Number
- CN202421754810.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-23
AI Technical Summary
In the prior art, when dealing with livestock breeding waste gas, it is difficult to effectively remove complex gas components and microorganisms, and there are problems such as high cost, environmental damage and poor sterilization effects.
The photocatalytic treatment device is used to decompose the organic gas in the exhaust gas, and the water-soluble gas in the exhaust gas is adsorbed through acidic and alkaline scrubbers, combining the oxidation and absorption of hydroxyl radicals to achieve odor removal and sterilization.
It has achieved efficient removal and sterilization of livestock breeding waste gas, reducing costs and environmental impacts, and improving treatment effect.
Smart Images
Figure CN222871815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste gas treatment, in particular to a livestock breeding deodorization and sterilization system. Background Art
[0002] In livestock and poultry farming, especially large-scale livestock and poultry farming, feces not only emit foul-smelling gases that pollute the environment, but also contain a large number of bacteria and viruses, which can easily cause diseases. Taking pig manure as an example, it can emit more than 160 kinds of odorous gases, seriously polluting the environment. The gas contains ammonia, hydrogen sulfide, indole, propionic acid, butyric acid, methane, carbon dioxide, etc., some of which are water-insoluble substances, such as methane. Due to the complex composition and variety of gases contained therein, it is difficult to treat. The existing treatment methods are generally physical adsorption, spray absorption, ozone oxidation, and biological agent neutralization. The existing treatment methods have the following problems: Physical adsorption: When the adsorbent (such as activated carbon) is saturated, it needs to be replaced in time, the cost is high, and the adsorbent also needs to be harmlessly treated. Spray absorption: Many gases have poor water solubility and are not completely absorbed. Ozone oxidation: Ozone itself is a carcinogenic substance, cannot be used for a long time, and damages the environment. Biological agents: Most biological agents only cover the smell of the gas, but do not really eliminate the polluted gas. Moreover, except for ozone, the above methods cannot effectively disinfect bacteria and viruses. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a livestock breeding deodorization and sterilization system which firstly treats waste gas by photocatalytic decomposition and then treats the waste gas by adsorption through an acidic washing tower and an alkaline washing tower.
[0004] In order to solve the above technical problems, the utility model provides a livestock breeding deodorization and sterilization system, including a photocatalytic treatment device, a fan, an acidic washing tower and an alkaline washing tower. The photocatalytic treatment device includes a box body and a photocatalytic component. An air inlet pipe is provided on one lateral side of the box body, and an air outlet pipe is provided on the other lateral side of the box body. The photocatalytic component includes a frame, a photocatalytic plate and a lamp board. The frame is installed in the box body. A first opening is provided on one lateral side of the frame close to the air inlet pipe, and a second opening is provided on one lateral side of the frame close to the air outlet pipe. The photocatalytic plate cover is provided on the second opening. The photocatalytic plate is a mesh plate coated with a photocatalyst. The lamp board is fixed in the first opening. An ultraviolet light source capable of irradiating the catalyst plate is provided on the lamp board. The air inlet of the acidic washing tower is connected to the air outlet pipe, and the air outlet of the acidic washing tower is connected to the air inlet of the alkaline washing tower.
[0005] As a preferred embodiment of the utility model, the system also includes a first gas-liquid separator and a second gas-liquid separator, the gas outlet of the acidic washing tower is connected to the gas inlet of the first gas-liquid separator, the gas outlet of the first gas-liquid separator is connected to the gas inlet of the alkaline washing tower, and the gas outlet of the alkaline washing tower is connected to the gas inlet of the second gas-liquid separator.
[0006] As a preferred solution of the utility model, the top cover of the frame is provided with a detachable cover plate, the longitudinal sides of the frame are respectively provided with mounting grooves, the tops of the mounting grooves are open, and the longitudinal sides of the photocatalytic plates are respectively inserted into the mounting grooves.
[0007] As a preferred solution of the utility model, the light board is arranged in the longitudinal direction, both ends of the light board are respectively fixedly connected to the frame, and a plurality of light boards are provided and are arranged at intervals in the vertical direction.
[0008] As a preferred solution of the utility model, a plurality of the photocatalytic components are provided, and the plurality of the photocatalytic components are arranged in sequence along the lateral direction of the box.
[0009] The utility model embodiment is a livestock breeding deodorization and sterilization system. Compared with the prior art, its beneficial effects are as follows: when working, the waste gas generated in livestock breeding is transported into the box through the air intake pipe. When the waste gas flows to the photocatalytic plate, under the irradiation of the ultraviolet light source, the oxygen and water in the air are catalyzed to generate hydroxyl radicals on the surface of the photocatalytic plate. The strong oxidizing property of the hydroxyl radicals is utilized to decompose most of the organic gases in the waste gas into carbon dioxide, nitrogen, water, etc., and some gases with complex structures that are difficult to decompose can be oxidized to increase their water solubility, which is convenient for their subsequent absorption. At the same time, the hydroxyl radicals can kill the microorganisms in the waste gas, thereby playing a sterilization role. Subsequently, the waste gas treated by the photocatalytic treatment device passes through the acidic washing tower and the alkaline washing tower in turn to absorb the acidic water-soluble gases and alkaline water-soluble gases in the waste gas, thereby achieving deodorization and sterilization of the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model;
[0011] Figure 2 It is a structural diagram of the photocatalytic component of the utility model;
[0012] Figure 3 This is a structural diagram of the photocatalytic component of the utility model after the cover plate is removed;
[0013] In the figure, 1. photocatalytic treatment device; 11. housing; 111. air inlet pipe; 112. air outlet pipe; 12. photocatalytic component; 121. frame; 122. photocatalytic plate; 123. lamp board; 124. ultraviolet light source; 125. cover plate; 126. mounting groove; 2. fan; 3. acidic washing tower; 4. alkaline washing tower; 5. first gas-liquid separator; 6. second gas-liquid separator. DETAILED DESCRIPTION
[0014] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0016] like Figure 1-3As shown, a livestock breeding deodorization and sterilization system according to a preferred embodiment of the utility model comprises a photocatalytic treatment device 1, a fan 2, an acidic washing tower 3 and an alkaline washing tower 4. The photocatalytic treatment device 1 comprises a housing 11 and a photocatalytic component 12. An air inlet pipe 111 is arranged on one lateral side of the housing 11, and an air outlet pipe 112 is arranged on the other lateral side of the housing 11. The photocatalytic component 12 comprises a frame 121, a photocatalytic plate 122 and a lamp board 123. The frame 121 is installed in the housing 11. A first opening is arranged on a lateral side of the frame 121 close to the air inlet pipe 111, and a second opening is arranged on a lateral side of the frame 121 close to the air outlet pipe 112. The photocatalytic plate 122 is covered on the second opening, and the photocatalytic plate 122 is coated A mesh plate with a photocatalyst (such as titanium dioxide) is provided, and the exhaust gas can pass through the mesh plate to ensure the fluidity of the exhaust gas. A lamp plate 123 is fixed in the first opening, and an ultraviolet light source 124 capable of irradiating the catalytic plate is provided on the lamp plate 123. The air inlet of the acidic washing tower 3 is connected to the air outlet pipe 112, and the air outlet of the acidic washing tower 3 is connected to the air inlet of the alkaline washing tower 4. It can be understood that the acidic washing tower 3 and the alkaline washing tower 4 are prior arts. The acidic washing tower 3 is mainly used to treat the exhaust gas containing acidic gas. After the acidic gas is passed into the acidic washing tower 3, it is absorbed by the alkaline solution in the acidic washing tower 3, while the alkaline washing tower 4 is mainly used to treat the exhaust gas containing alkaline gas. After the alkaline gas is passed into the alkaline washing tower 4, it is absorbed by the acid solution in the alkaline washing tower 4.
[0017] The working principle of this embodiment is as follows: when working, the waste gas generated in livestock breeding is transported to the box body 11 through the air inlet pipe 111. When the waste gas flows to the photocatalytic plate 122, under the irradiation of the ultraviolet light source 124, the oxygen and water in the air are catalyzed to generate hydroxyl radicals on the surface of the photocatalytic plate 122. The strong oxidizing property of the hydroxyl radicals is used to decompose most of the organic gases in the waste gas into carbon dioxide, nitrogen, water, etc., and some gases with complex structures that are difficult to decompose can be oxidized to increase their water solubility, which is convenient for subsequent absorption. At the same time, the hydroxyl radicals can kill the microorganisms in the waste gas, thereby playing a sterilizing role; then, the waste gas treated by the photocatalytic treatment device 1 is transported to the acidic scrubber 3 through the air outlet pipe 112, and the acidic water-soluble gas in the waste gas is absorbed; then the waste gas after passing through the acidic scrubber 3 is transported to the alkaline scrubber 4, and the alkaline water-soluble gas in the waste gas is absorbed, thereby achieving deodorization and sterilization of the waste gas.
[0018] Generally, the acidic washing tower 3 uses low-volatile alkali liquids such as sodium hydroxide, sodium carbonate, and sodium bicarbonate, and the alkaline washing tower 4 uses low-volatile acid liquids such as sulfuric acid and citric acid to avoid their volatilization and transportation with the exhaust gas. Exemplarily, the system also includes a first gas-liquid separator 5 and a second gas-liquid separator 6. The gas outlet of the acidic washing tower 3 is connected to the gas inlet of the first gas-liquid separator 5, and the gas outlet of the first gas-liquid separator 5 is connected to the gas inlet of the alkaline washing tower 4. The gas outlet of the alkaline washing tower 4 is connected to the gas inlet of the second gas-liquid separator 6. When the exhaust gas passes through the acidic washing tower 3 or the alkaline washing tower 4, it may be accompanied by water vapor, and the first gas-liquid separator 5 and the second gas-liquid separator 6 can separate the water vapor in the exhaust gas.
[0019] Exemplarily, the top cover of the frame 121 is provided with a removable cover plate 125, and mounting grooves 126 are respectively provided on both longitudinal sides of the frame 121. The top of the mounting groove 126 is open, and both longitudinal sides of the photocatalytic plate 122 are respectively inserted into the mounting groove 126. After removing the cover plate 125, the photocatalytic plate 122 can be pulled out, and disassembly and assembly are simple, so as to facilitate the replacement of the photocatalytic plate 122.
[0020] Exemplarily, the lamp board 123 is arranged in the longitudinal direction, and both ends of the lamp board 123 are respectively fixedly connected to the frame 121. A plurality of lamp boards 123 are provided and are arranged at intervals along the vertical direction. The lamp boards 123 are evenly arranged and can fully illuminate the photocatalytic plate 122. A space for exhaust gas transportation is formed between two adjacent lamp boards 123, ensuring that the exhaust gas can be transported to the photocatalytic plate 122, thereby ensuring that the photocatalytic plate 122 can decompose and process the exhaust gas.
[0021] Exemplarily, a plurality of photocatalytic components 12 are provided, and the plurality of photocatalytic components 12 are arranged in sequence along the lateral direction of the housing 11, that is, a plurality of photocatalytic components 12 connected in series are provided in a photocatalytic processor. When working, the exhaust gas passes through the plurality of photocatalytic components 12 in sequence to ensure the treatment effect of the exhaust gas.
[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A livestock breeding deodorization and sterilization system, characterized by: It includes a photocatalytic treatment device, a blower, an acidic washing tower and an alkaline washing tower. The photocatalytic treatment device includes a box and a photocatalytic component. An air inlet pipe is provided on one lateral side of the box, and an air outlet pipe is provided on the other lateral side of the box. The photocatalytic component includes a frame, a photocatalytic plate and a lamp board. The frame is installed in the box. A first opening is provided on one lateral side of the frame close to the air inlet pipe, and a second opening is provided on one lateral side of the frame close to the air outlet pipe. The photocatalytic plate cover is provided on the second opening. The photocatalytic plate is a mesh plate coated with a photocatalyst. The lamp board is fixed in the first opening. An ultraviolet light source capable of irradiating the catalyst plate is provided on the lamp board. The air inlet of the acidic washing tower is connected to the air outlet pipe, and the air outlet of the acidic washing tower is connected to the air inlet of the alkaline washing tower.
2. The livestock breeding deodorization and sterilization system according to claim 1, characterized in that: It also includes a first gas-liquid separator and a second gas-liquid separator, the gas outlet of the acidic washing tower is connected to the gas inlet of the first gas-liquid separator, the gas outlet of the first gas-liquid separator is connected to the gas inlet of the alkaline washing tower, and the gas outlet of the alkaline washing tower is connected to the gas inlet of the second gas-liquid separator.
3. The livestock breeding deodorization and sterilization system according to claim 1, characterized in that: The top cover of the frame is provided with a detachable cover plate, and the longitudinal sides of the frame are respectively provided with mounting grooves, the tops of the mounting grooves are open, and the longitudinal sides of the photocatalytic plates are respectively inserted into the mounting grooves.
4. The livestock breeding deodorization and sterilization system according to claim 1, characterized in that: The light board is arranged in the longitudinal direction, and both ends of the light board are respectively fixedly connected to the frame. A plurality of light boards are provided and are arranged at intervals in the vertical direction.
5. The livestock breeding deodorization and sterilization system according to claim 1, characterized in that: A plurality of the photocatalytic components are provided, and the plurality of the photocatalytic components are arranged in sequence along the lateral direction of the box.