Multi-stage odor deodorization and purification device and method for animal husbandry
The multi-stage odor removal and purification device for livestock enables automatic separation and multi-stage purification of feces and urine, solving the problems of high odor concentration and bacterial growth in intensive livestock farms, and achieving efficient odor degradation and bacterial elimination.
Patent Information
- Application Number
- CN202511131540.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-13
- Publication Date
- 2025-11-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In modern intensive livestock farms, the treatment of manure and urine mixtures leads to intense odor concentrations that are difficult to completely purify, resulting in the proliferation of pathogens, which affects livestock health and the environment, and the purification process is costly.
The livestock odor multi-stage deodorization and purification device includes a manure tank, a urine tank, a purification system, and cleaning components. Through components such as fans, feeding pipes, discharging pipes, and nozzles, it achieves automatic separation and multi-stage purification of manure and urine. Combined with chemical reactants and a water curtain system, it performs multiple deodorization and sterilization treatments.
It significantly reduces odor concentration by 40-60%, kills pathogenic microorganisms by over 90%, improves purification efficiency, and reduces treatment costs.
Smart Images
Figure CN120959148A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of animal husbandry technology, and in particular to a multi-stage deodorization and purification device and method for animal husbandry. Background Technology
[0002] In modern intensive livestock farms, centralized treatment of livestock excrement (manure and urine) is a core aspect of environmental control. Traditional livestock sheds typically use unified manure ditches to collect the mixture of manure and urine, which is then flushed or scraped into septic tanks. During this process, malodorous gases such as ammonia and hydrogen sulfide are continuously released, fostering the growth of pathogenic microorganisms (such as E. coli and Salmonella), leading not only to deterioration of air quality in the pens but also to respiratory diseases and cross-infection in livestock. Furthermore, the mixed fermentation of manure and wastewater is inefficient, making subsequent purification treatment difficult and costly.
[0003] Commonly known livestock sheds typically have fans at one end and water curtains at the other. During the cleaning process, the mixture of feces and urine intensifies anaerobic fermentation, resulting in a strong odor concentration. Since it is impossible to sterilize the feces and urine separately, even after passing through a traditional purification pond and being discharged into the lower-level water curtain for purification via a fresh air system, it is still difficult to completely purify the odor. The gas contains pathogens, and if it is discharged directly without pretreatment, it will still have an impact on the surrounding environment. Summary of the Invention
[0004] To address the aforementioned problems, this invention provides a multi-stage deodorization and purification device for livestock, comprising a livestock pen, a manure pit, a urine pit, a purification system, and a cleaning component. The manure pit and urine pit are located outside the livestock pen, with a passageway between them. The purification system includes an air duct connecting the manure pit and the livestock pen, and a fan installed within the passageway. The purification system also includes a secondary purification box located within the urine pit, connected to a feeding pipe that communicates with the urine pit. Furthermore, the purification system includes a discharge pipe connecting the secondary purification box to the livestock pen. The cleaning component includes a leakage structure connecting the manure pit, urine pit, and livestock pen, and a cleaning seat that moves within the livestock pen. The cleaning seat has a sterilization seat, and the discharge pipe has several nozzles positioned along the movement path of the sterilization seat. The air outlet of the air duct corresponds to the water curtain system of the livestock shed.
[0005] As a further preferred embodiment, the livestock pen is provided with an inlet and outlet, a manure discharge trough is provided between the livestock pen and the manure pit, the inlet and outlet and the manure discharge trough are equipped with door panels, the top of the urine pit and the manure pit are covered with a cover plate, and aeration is introduced into the bottom of the urine pit.
[0006] As a further preferred embodiment, an annular metal plate is embedded in the through groove, and the fan is fixed on the annular metal plate.
[0007] As a further preferred embodiment, one end of the air duct connected to the manure pit is connected to a first vertical pipe, and the other end of the air duct connected to the livestock pen is connected to a second horizontal pipe above the livestock pen. Air hoods are respectively connected to the openings of the first pipe and the second pipe.
[0008] As a further preferred embodiment, the secondary purification chamber is equipped with a partition, which divides the inner cavity of the secondary purification chamber into a first chamber and a second chamber. The first chamber corresponds to the bottom end of the feeding pipe, and the inlet end of the discharge pipe is connected to the second chamber. The outlet end of the discharge pipe enters the livestock pen from near the manure trough and extends along the inner wall of the livestock pen to the end of the cavity wall of the livestock pen. There are several nozzles, which are equidistantly distributed along the extension length of the discharge pipe. The sterilization seat is rectangular, and the top of the sterilization seat has an opening. When the sterilization seat moves linearly with the cleaning seat, its top opening passes through all the nozzles in sequence. A row of seepage holes is opened on the lower front side of the sterilization seat.
[0009] As a further preferred embodiment, the sterilization seat is vertically fixed on the top surface of the cleaning seat, and the forward end of the cleaning seat is provided with a rounded corner surface. One edge of the rounded corner surface is close to the bottom of the livestock pen cavity, and the other edge of the rounded corner surface is close to the bottom edge of the sterilization seat.
[0010] As a further preferred embodiment, the leakage structure includes a clamping cavity disposed at one end of the inner cavity of the manure pit, a liquid pipe connecting the clamping cavity to the urine pit, and a leakage body provided between the cavity wall of the manure pit and the livestock pen.
[0011] A method for deodorizing and purifying livestock waste includes the following steps:
[0012] S01. A water curtain is installed in the breeding shed, the air outlet of the air duct is close to the water curtain, a water pump and a water tank are installed near the water curtain, a spray pipe is installed above the water curtain, and the water pump, water tank and spray pipe are connected by pipes to form a spray cycle.
[0013] S02. Add deodorant and sterilizing agent to the water tank in S01 to obtain the reagent reaction product;
[0014] S03. Connect an aeration pipe to the urinal, and connect an aerator to the outer end of the aeration pipe;
[0015] S04. Install a motor at the end of the livestock pen, install a screw inside the livestock pen, install a transmission seat and a guide wheel at both ends of the cleaning seat, install the transmission seat on the screw, and roll the guide wheel onto the inner wall of the livestock pen via a track;
[0016] S05. Start the motor to drive the screw to rotate, the screw to drive the transmission seat to move linearly, the transmission seat to drive the cleaning seat to move linearly along the bottom of the livestock pen cavity, push the manure to the manure discharge trough, open the door panel on the manure discharge trough, so that the solid manure in the manure enters the manure tank, and the liquid manure flows into the urine tank through the seepage structure.
[0017] S06. The reagent reactant enters the livestock pen and the urine pool, so that the feces and urine are deodorized and sterilized;
[0018] S07. The gas from the manure pit and the livestock pen is drawn into the water curtain through the air duct, and the gas is deodorized and sterilized by the water curtain.
[0019] The advantages of this invention compared to the prior art are:
[0020] 1. The secondary purification tank adds chemical reactants to the urine pool to completely kill pathogens in the urine and greatly reduce the concentration of odor released from the urine. The secondary purification tank is equipped with a branch consisting of a discharge pipe and a nozzle to deliver some deodorizing and sterilizing agents into the livestock pen to kill pathogens and odors in the pen. A cleaning seat is installed in the livestock pen. As the cleaning seat moves the manure to the manure pool, a large amount of sterilizing agent flows through the cleaning seat to the manure, thus pre-treating the odor and bacteria in the manure.
[0021] 2. An interconnecting channel was created between the urinal and the septic tank, and a blower was installed in the channel. When the blower is activated, the gas released from the urinal after primary purification is drawn into the septic tank. The gas from the urinal after primary purification is collected and diluted with the gas released from the septic tank after primary purification. The gas then flows into the duct and is sprayed onto the water curtain through the circulation system. The gas discharged after primary purification is sprayed onto the water curtain, and the gas extracted during primary purification is discharged onto the water curtain through the duct for secondary deodorization and sterilization, thus improving the treatment quality. Attached Figure Description
[0022] Figure 1 A schematic diagram of a multi-stage odor removal and purification device for livestock, provided for an embodiment of the present invention;
[0023] Figure 2 A multi-stage odor removal and purification device for livestock, provided as an embodiment of the present invention, comprises... Figure 1 This is a schematic diagram from another perspective.
[0024] Figure 3 A schematic diagram showing a partially cut-open multi-stage odor removal and purification device for livestock, provided for an embodiment of the present invention;
[0025] Figure 4A schematic diagram of a multi-stage deodorization and purification device for livestock used in an embodiment of the present invention when the secondary purification box is opened;
[0026] Figure 5 This is a schematic diagram of a livestock deodorization and purification method implemented by a multi-stage deodorization and purification device for livestock use, according to an embodiment of the present invention.
[0027] Figure 6 This invention provides a schematic diagram of the dismantling of the manure pit and urine pit in a multi-stage odor removal and purification device for livestock.
[0028] In the diagram: 10, Livestock pen; 20, Manure pit; 30, Urine pit; 40, Air duct; 50, Fan; 60, Secondary purification box; 610, Partition; 620, First chamber; 630, Second chamber; 70, Feeding pipe; 80, Discharge pipe; 810, Nozzle; 90, Leakage structure; 910, Clamped cavity; 911, Liquid pipe; 912, Leakage body; 100, Cleaning seat; 110, Sterilization seat; 101, Inlet / outlet; 102, Manure discharge trough; 103, Annular metal plate; 410, First pipe; 420, Second pipe; 430, Air hood; 1010, Rounded corner surface. Detailed Implementation
[0029] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0030] In one implementation, such as Figures 1-6 As shown:
[0031] This embodiment provides a multi-stage deodorization and purification device for livestock, including a livestock pen 10, a manure pit 20, a urine pit 30, a purification system, and cleaning components. The manure pit 20 and urine pit 30 are located outside the livestock pen 10, and a passageway is formed between the urine pit 30 and the manure pit 20. The purification system includes an air duct 40 connecting the manure pit 20 and the livestock pen 10. A fan 50 is installed in the passageway, drawing air from the urine pit 30 to the manure pit 20 via the fan 50. The purification system also includes a secondary purification box 60 disposed within the urine pit 30. The secondary purification box 60 is connected to a feeding pipe 70, which communicates with the urine tank 30. The purification system also includes a discharge pipe 80 connected between the secondary purification box 60 and the livestock pen 10. The cleaning component includes a leakage structure 90 connecting the manure tank 20, the urine tank 30, and the livestock pen 10. The cleaning component also includes a cleaning seat 100 that travels within the livestock pen 10. The cleaning seat 100 is equipped with a sterilization seat 110. The discharge pipe 80 is equipped with several nozzles 810 located on the movement path of the sterilization seat 110.
[0032] Excrement in the livestock pen 10 is separated by the permeation structure 90. Solid manure is contained within the livestock pen 10 and, after further treatment, falls into the manure tank 20. Urine flows into the urine tank 30 through the permeation structure 90, achieving automatic separation of feces and urine. The benefit lies in allowing pathogens to flow into the urine tank 30 as quickly as possible through the urine, improving sterilization efficiency during excrement sterilization. For example, pathogens in the sewage are carried into the urine tank 30 in a fluid manner after separation by urine, thus greatly reducing the number of pathogens in the feces. A large number of pathogens enter the urine tank 30 with the urine. Deodorizing agents and sterilizing agents (such as quicklime emulsion or peracetic acid solution) are added to the urine tank 30 through the secondary purification tank 60. The deodorizing and sterilizing agents react with the urine, completely killing the pathogens in the urine and significantly reducing the concentration of odor released from the urine. In addition, the secondary purification tank 60 is equipped with a discharge pipe 80. The branch, consisting of the nozzle 810, delivers a portion of the deodorizing and sterilizing agents into the livestock pen 10 to kill pathogens and odors within the pen. A cleaning seat 100 is installed inside the livestock pen 10. As the cleaning seat 100 moves along the bottom of the pen, its top sterilizing seat 110 moves precisely below the nozzle 810, allowing the sterilizing agent to be accurately sprayed onto it. As the cleaning seat 100 pushes the manure towards the manure pit 20, the sterilizing seat 110, which absorbs the sterilizing agent, simultaneously scrubs the pen floor, ensuring the agent is evenly distributed across the pen surface for purification. Furthermore, as the cleaning seat 100 pushes the manure towards the manure pit 20, a large amount of sterilizing agent flows through the cleaning seat 100 onto the manure, treating the odors and bacteria in the manure in the same way. Therefore, the manure is pre-sterilized and deodorized before being pushed into the manure pit 20.
[0033] The deodorization and sterilization treatment performed on the urine tank 30 and the septic tank 20 is a primary purification process. This invention also includes a secondary purification process, as follows: A connecting channel is created between the urine tank 30 and the septic tank 20, and a blower 50 is installed within the channel. When the blower 50 is activated, it draws the gas released from the urine tank 30 after the primary purification process into the septic tank 20. The gas from the urine tank 30, after the primary purification process, is collected and diluted with the gas released from the septic tank 20, and then flows into the duct 40. A water curtain is installed inside or at one end of the breeding shed. The water curtain uses a mixture of deodorant and sterilizing agent as its fluid, and the mixture is sprayed onto the water curtain through a circulation system. The outlet of the duct 40 is directed towards the water curtain, spraying the gas discharged after the primary purification process onto it. A high-pressure exhaust pipe is installed outside the breeding shed, relative to the outside of the water curtain. Under power, the high-pressure exhaust pipe draws air outwards from the water curtain, causing the gas blown towards the water curtain by the duct 40 to undergo secondary sterilization and deodorization through the mixture. The odor is first sterilized and decomposed by liquid sterilizing agent in the urinal 30, and then discharged through the air duct 40 for secondary purification. The odor concentration is reduced by 40-60%, and the pathogenic microorganism kill rate is >90%.
[0034] The system includes a livestock pen 10, a manure pit 20, a urine pit 30, a purification system, and cleaning components. The manure pit 20 and urine pit 30 are located outside the livestock pen 10. A passageway is formed between the urine pit 30 and the manure pit 20. The purification system includes an air duct 40 connecting the manure pit 20 and the livestock pen 10. A blower 50 is installed in the passageway, drawing air from the urine pit 30 into the manure pit 20. The purification system also includes a secondary purification box 60 located inside the urine pit 30, connected to a... The system includes a feeding pipe 70, which communicates with the urine tank 30. The purification system also includes a discharge pipe 80 connected between the secondary purification box 60 and the livestock pen 10. The cleaning assembly includes a leakage structure 90 connecting the manure tank 20, the urine tank 30, and the livestock pen 10. The cleaning assembly also includes a cleaning seat 100 that travels within the livestock pen 10. The cleaning seat 100 is equipped with a sterilization seat 110. The discharge pipe 80 is equipped with several nozzles 810 located on the movement path of the sterilization seat 110.
[0035] The livestock pen 10 has an inlet and outlet 101, and a manure discharge trough 102 is provided between the livestock pen 10 and the manure pit 20. The inlet and outlet 101 and the manure discharge trough 102 are equipped with door panels. The top of the urine pit 30 and the manure pit 20 are covered with a cover plate, and the bottom of the urine pit 30 is vented with aeration.
[0036] The door panel physically isolates the manure cleaning channel, preventing odor from escaping; the cover plate blocks the open volatilization of the manure tank 20 and urine tank 30, improving the negative pressure suction efficiency of the blower 50 and reducing direct pollution to the air inside the breeding shed; aeration is introduced into the urine tank 30, causing the urine to surge, which firstly enhances the uniformity of mixing urine and sterilizing agent, further improving the odor degradation rate, and secondly, quickly releases residual odor gases, improving the extraction efficiency of the blower 50.
[0037] An annular metal plate 103 is embedded in the through groove, and the fan 50 is fixed on the annular metal plate 103.
[0038] The annular metal plate 103 disperses the vibration stress of the fan 50 and prevents the channel wall from cracking; the thermal conductivity of the metal accelerates the heat dissipation of the motor, enabling the fan 50 to operate continuously in a high temperature and high humidity environment, thereby also improving the service life of the fan 50.
[0039] One end of the duct 40, which connects to the manure pit 20, is connected to a first vertical pipe 410. The other end of the duct 40, which connects to the livestock pen 10, is connected to a second horizontal pipe 420, which is positioned above the livestock pen 10. A trumpet-shaped hood 430 is connected to the opening of each of the first and second pipes 410. The hood 430 increases the odor capture area, further improving the extraction efficiency.
[0040] The secondary purification box 60 is equipped with a partition 610, which divides the inner cavity of the secondary purification box 60 into a first chamber 620 and a second chamber 630. The first chamber 620 corresponds to the bottom end of the feeding pipe 70. The feeding end of the discharge pipe 80 is connected to the second chamber 630. The discharge end of the discharge pipe 80 enters the livestock pen 10 from near the manure trough 102 and extends along the inner wall of the livestock pen 10 to the end of the cavity wall of the livestock pen 10. There are several nozzles 810, which are evenly distributed along the extension length of the discharge pipe 80. The sterilization seat 110 is rectangular and has an opening at the top. When the sterilization seat 110 moves in a straight line with the cleaning seat 100, its top opening passes through all the nozzles 810 in sequence. A row of seepage holes is opened on the lower front side of the sterilization seat 110.
[0041] When deodorizing agent and sterilizing agent (such as quicklime emulsion or peracetic acid solution, hereinafter referred to as agents) are added to the secondary purification box 60 through the feeding pipe 70, part of the deodorizing agent and sterilizing agent flows directly into the first chamber 620 through the feeding pipe 70, and is directly distributed into the urine pool 30 from the first chamber 620. The other part of the deodorizing agent and sterilizing agent flows into the second chamber 630, is pumped into the discharge pipe 80 by the water pump, and is finally sprayed into the livestock pen 10 and onto the sterilization seat 110 through the nozzle 810. The secondary purification box 60 achieves the rational use of agents by dividing the chambers (first chamber 620 and second chamber 620), so that the agents can achieve the purpose of two uses with one feeding.
[0042] During the cleaning process of the cleaning seat 100, the sterilization seat 110 passes through all the nozzles 810 in sequence. These nozzles 810 sequentially provide the cleaning seat 100 with a sufficient amount of agent, ensuring that the sterilization seat 110 delivers enough agent to the manure as it moves. The agent is also applied to the bottom surface of the livestock pen 10 through the perforations. This sterilizes and deodorizes the manure being cleaned and sterilizes the bottom surface of the livestock pen 10 after cleaning. The nozzles 810 are arranged in an array. When spraying the agent onto the livestock pen 10, they not only replenish the sterilization seat 110 as it moves, but the nozzles 810 passing by the sterilization seat 110 also continuously spray the agent into the livestock pen 10. This ensures that the livestock pen 10, the pen bottom, and the manure are all sterilized and deodorized, further improving the quality of the primary purification.
[0043] The sterilization seat 110 is erected and fixed on the top surface of the cleaning seat 100. The front end of the cleaning seat 100 is provided with a rounded corner surface 1010. One edge of the rounded corner surface 1010 is close to the bottom of the livestock pen 10, and the other edge of the rounded corner surface 1010 is close to the bottom edge of the sterilization seat 110. The rounded corner surface 1010 guides the manure and sewage to be smoothly pushed towards the manure discharge trough 102, thereby reducing the resistance of the cleaning seat 100. The continuous curved surface of the sterilization seat 110 and the rounded corner surface 1010 ensures that there are no dead corners when the manure is pushed and the medicine is applied simultaneously. At the same time, the medicine sprayed onto the cleaning seat 100 and the medicine flowing out through the seepage hole flows towards the bottom of the pen.
[0044] The leakage structure 90 includes a clamping cavity 910 located at one end of the inner cavity of the manure tank 20. A liquid pipe 911 connects the clamping cavity 910 and the urine tank 30. A leakage body 912 is provided between the cavity wall of the manure tank 20 and the livestock pen 10. The leakage body 912 can be a filter screen, filter plate, etc. During the breeding process, the urine portion of the manure discharged into the livestock pen 10 enters the clamping cavity 910 through the leakage body 912, and then flows into the urine tank 30 through the liquid pipe 911 between the clamping cavity 910 and the urine tank 30, thus achieving manure and urine separation in advance.
[0045] like Figure 5 As shown, a livestock deodorization and purification method includes the following processing steps:
[0046] S01. A water curtain is installed in the breeding shed, the air outlet of the air duct is close to the water curtain, a water pump and a water tank are installed near the water curtain, a spray pipe is installed above the water curtain, and the water pump, water tank and spray pipe are connected by pipes to form a spray cycle.
[0047] S02. Add deodorant and sterilizing agent to the water tank in S01 to obtain the reagent reaction product;
[0048] S03. Connect an aeration pipe to the urinal, and connect an aerator to the outer end of the aeration pipe;
[0049] S04. Install a motor at the end of the livestock pen, install a screw inside the livestock pen, install a transmission seat and a guide wheel at both ends of the cleaning seat, install the transmission seat on the screw, and roll the guide wheel onto the inner wall of the livestock pen via a track;
[0050] S05. Start the motor to drive the screw to rotate, the screw to drive the transmission seat to move linearly, the transmission seat to drive the cleaning seat to move linearly along the bottom of the livestock pen cavity, push the manure to the manure discharge trough, open the door panel on the manure discharge trough, so that the solid manure in the manure enters the manure tank, and the liquid manure flows into the urine tank through the seepage structure.
[0051] S06. The reagent reactant enters the livestock pen and the urine pool, so that the feces and urine are deodorized and sterilized;
[0052] S07. The gas from the manure pit and the livestock pen is drawn into the water curtain through the air duct, and the gas is deodorized and sterilized by the water curtain.
[0053] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.
[0054] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A multi-stage odor removal and purification device for livestock, characterized in that, The system includes a livestock pen (10), a manure pit (20), a urine pit (30), a purification system, and cleaning components. The manure pit (20) and urine pit (30) are located outside the livestock pen (10). A passageway is provided between the urine pit (30) and the manure pit (20). The purification system includes an air duct (40) that connects the manure pit (20) and the livestock pen (10). A blower (50) is installed in the passageway. The purification system also includes a secondary purification box (60) located inside the urine pit (30). A feeding pipe (70) is connected to the secondary purification box (60). The feeding pipe (70) is connected to the urine pit (10). 30) The purification system also includes a discharge pipe (80) connected between the secondary purification box (60) and the livestock pen (10). The cleaning component includes a leakage structure (90) connecting the manure pit (20), the urine pit (30) and the livestock pen (10). The cleaning component also includes a cleaning seat (100) that moves inside the livestock pen (10). The cleaning seat (100) is equipped with a sterilization seat (110). The discharge pipe (80) is equipped with several nozzles (810) located on the movement path of the sterilization seat (110). The air outlet of the air duct (40) corresponds to the water curtain system of the breeding shed.
2. The multi-stage odor removal and purification device for livestock as described in claim 1, characterized in that, The livestock pen (10) is provided with an inlet and outlet (101), and a manure discharge trough (102) is provided between the livestock pen (10) and the manure pit (20). Door panels are provided on the inlet and outlet (101) and the manure discharge trough (102). Covers are installed on the top of the urine pit (30) and the manure pit (20), and aeration is introduced into the bottom of the urine pit (30).
3. The multi-stage odor removal and purification device for livestock as described in claim 2, characterized in that, An annular metal plate (103) is embedded in the through groove, and the fan (50) is fixed on the annular metal plate (103).
4. The multi-stage odor removal and purification device for livestock as described in claim 3, characterized in that, One end of the air duct (40) connected to the manure pit (20) is connected to a first vertical pipe (410), and the other end of the air duct (40) connected to the livestock pen (10) is connected to a second horizontal pipe (420) above the livestock pen (10). The openings of the first pipe (410) and the second pipe (420) are respectively connected to air covers (430).
5. The multi-stage odor removal and purification device for livestock as described in claim 4, characterized in that, The secondary purification box (60) is equipped with a partition (610) that divides the inner cavity of the secondary purification box (60) into a first chamber (620) and a second chamber (630). The first chamber (620) corresponds to the bottom end of the feeding pipe (70). The inlet end of the discharge pipe (80) is connected to the second chamber (630). The outlet end of the discharge pipe (80) enters the livestock pen (10) from near the manure trough (102) and flows along the livestock pen (10). The inner wall of the nozzle (810) extends to the end of the cavity wall of the livestock pen (10). There are several nozzles (810), and the nozzles (810) are evenly distributed along the extension length of the discharge pipe (80). The sterilization seat (110) is rectangular, and the top of the sterilization seat (110) is provided with an opening. When the sterilization seat (110) moves in a straight line with the cleaning seat (100), its top opening passes through all the nozzles (810) in sequence. A row of seepage holes is opened on the lower front side of the sterilization seat (110).
6. The multi-stage odor removal and purification device for livestock as described in claim 5, characterized in that, The sterilization seat (110) is erected and fixed on the top surface of the cleaning seat (100). The front end of the cleaning seat (100) is provided with a rounded corner surface (1010). One edge of the rounded corner surface (1010) is close to the bottom of the livestock pen (10), and the other edge of the rounded corner surface (1010) is close to the bottom edge of the sterilization seat (110).
7. A multi-stage odor removal and purification device for livestock use according to claim 6, characterized in that, The leakage structure (90) includes a clamping cavity (910) located at one end of the inner cavity of the manure pit (20), a liquid pipe (911) connecting the clamping cavity (910) and the urine pit (30), and a leakage body (912) provided between the cavity wall of the manure pit (20) and the livestock pen (10).
8. A method for deodorizing and purifying livestock, comprising using the multi-stage deodorizing and purifying device for livestock as described in claim 1, characterized in that, The following processing steps are included: S01. A water curtain is set up in the breeding shed. The air outlet of the air duct (40) is close to the water curtain. A water pump and a water tank are set up near the water curtain. A spray pipe is set up above the water curtain. The water pump, water tank and spray pipe are connected by a pipe to form a spray cycle. S02. Add deodorant and sterilizing agent to the water tank in S01 to obtain the reagent reaction product; S03. Connect an aeration pipe to the urinal (30), and connect an aerator to the outer end of the aeration pipe; S04. Install a motor at the end of the livestock pen (10), install a screw inside the livestock pen (10), install a transmission seat and a guide wheel at both ends of the cleaning seat (100), install the transmission seat on the screw, and the guide wheel rolls onto the inner wall of the livestock pen (10) via a track. S05. Start the motor to drive the screw to rotate, and the screw drives the transmission seat to move linearly. The transmission seat drives the cleaning seat (100) to move linearly along the bottom of the livestock pen (10) cavity, pushing the manure to the manure discharge trough (102). Open the door panel on the manure discharge trough (102) to allow solid manure in the manure to enter the manure tank (20), while liquid manure flows into the urine tank (30) through the seepage structure (90). S06. The reagent reactant enters the livestock pen (10) and the urine pool (30) to deodorize and sterilize the feces and urine; S07. The gas from the manure pit (20) and the livestock pen (10) is drawn into the water curtain through the air duct (40), and the gas is deodorized and sterilized by the water curtain.