Livestock breeding sewage purification device

Abstract

The invention relates to the technical field of sewage purification, and discloses a livestock breeding sewage purification device which comprises a box body, a water inlet pipe and a water outlet filtering assembly are installed at the upper end and the lower end of the box body respectively, and a stirring assembly and a dosing assembly which extend into the box body are installed on the upper end face of the box body through a top cover; a pesticide spraying assembly synchronously rotating along with a stirring shaft of the stirring assembly is installed on the upper portion of an inner cavity of the box body, the pesticide spraying assembly comprises a pesticide storage box and fixedly arranged on the periphery of the upper end of the stirring shaft of the stirring assembly in a sleeving mode, and an opening is formed in the upper end. A medicine storage box rotates at a high speed along with a stirring shaft, centrifugal force drives a telescopic rod to contract, a baffle ring is driven to move upwards to open a discharging port, a medicine is evenly sprayed out in a radial shape, multiple sets of stirring paddles distributed in a staggered mode are matched, the medicine makes full contact with sewage, the removal rate of suspended solids in the sewage is increased, the COD value is reduced, and the sewage treatment efficiency is improved. The core problem of incomplete purification is solved.

Description

Technical Field

[0001] This invention relates to the field of wastewater purification technology, specifically to a wastewater purification device for livestock farming. Background Technology

[0002] The design of wastewater purification devices for livestock farming usually needs to take into account the special characteristics of the water quality. An efficient wastewater purification system should be able to remove these pollutants and ensure that the wastewater meets the discharge standards or reuse standards.

[0003] In wastewater treatment scenarios at large-scale livestock farms (such as those with more than 5,000 pigs or more than 1,000 dairy cows), traditional wastewater treatment devices struggle to meet the treatment needs of high-concentration livestock wastewater due to issues such as uneven reagent mixing and inefficient dosing control. Specific shortcomings are as follows: 1. Uneven mixing of reagents results in poor purification effect. Traditional equipment often uses manual spraying, which leads to local accumulation of chemicals (such as flocculants forming clumps on the surface of wastewater). This reduces the removal rate of suspended solids (SS) in the wastewater from livestock farms, and the treated wastewater remains turbid, resulting in COD exceeding the standard. Moreover, excessively high local concentrations of chemicals can also cause secondary pollution. 2. Inefficient pesticide application control leads to significant pesticide waste. Traditional equipment lacks a quantitative dosing mechanism and relies on manual experience to make judgments. This can lead to excessive dosing, resulting in pesticide residues, or insufficient dosing, leading to substandard purification. In addition, manual dosing is labor-intensive, and the volatilization of the pesticides may be harmful to health. 3. Poor equipment adaptability, making it difficult to treat complex wastewater. Livestock farming wastewater contains high concentrations of organic matter, fecal residue, and pathogens. Fecal residue may clog the dosing pipes of traditional equipment, affecting wastewater turnover and leading to the risk of wastewater overflow.

[0004] To address the aforementioned problems, this application proposes a livestock farming wastewater purification device. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention proposes a livestock breeding wastewater purification device.

[0006] This invention proposes a livestock wastewater purification device, comprising a housing, with an inlet pipe and an outlet filter assembly installed at the upper and lower ends of the housing, respectively. A stirring assembly and a dosing assembly extending into the housing are installed on the upper surface of the housing via a top cover. A dosing assembly, rotating synchronously with the stirring shaft of the stirring assembly, is installed in the upper part of the inner cavity of the housing. The dosing assembly includes… The medicine storage box is fixedly fitted on the outer periphery of the upper end of the stirring shaft of the stirring assembly, and the upper end is set as an opening to receive the medicine entering the box through the dosing assembly; The discharge port is located on the outer wall of the medicine storage box and is connected to the lower part of the inner cavity of the medicine storage box; The retaining ring is axially slidably fitted into the lower part of the inner cavity of the medicine storage box and blocks the inner opening of the discharge port; The telescopic rod is hinged at one end to the outer wall of the stirring shaft of the stirring assembly, and at the other end it is tilted downward and hinged to the lower part of the inner wall of the retaining ring. There are multiple telescopic rods evenly distributed around the circumference. When the stirring assembly drives the telescopic rods to rotate at high speed, under the action of centrifugal force, the telescopic rods gradually contract and drive the retaining ring to gradually move upward, so as to expose the inner opening of the discharge port, so that the medicine is evenly sprayed out through the discharge port under the action of centrifugal force.

[0007] As a further optimization of the present invention, there are multiple discharge ports that are evenly distributed circumferentially on the outer wall of the medicine storage box. The bottom surface of the inner cavity of the discharge port is flush with the bottom surface of the inner cavity of the medicine storage box, and the height of the discharge port is not greater than the height of the retaining ring.

[0008] As a further optimization of the present invention, the upper end of the telescopic rod is connected to the outer wall of the stirring shaft of the stirring assembly by a torsion spring.

[0009] As a further optimization of the present invention, the stirring assembly includes The servo motor is mounted on the upper surface of the housing; The stirring shaft is rotatably mounted inside the housing and its upper end is connected to the downward-facing output end of the servo motor. The stirring paddle is installed on the outer periphery of the stirring shaft; The lifting plate is slidably mounted at the bottom of the inner cavity of the box, and is driven to move up and down repeatedly by the lower end of the stirring shaft to agitate the medicine that has settled at the bottom.

[0010] As a further optimization of the present invention, the number of stirring paddles is multiple and divided into multiple groups and evenly distributed along the length direction of the stirring shaft. Each group has multiple stirring paddles evenly distributed circumferentially and extending radially, and the stirring paddles of adjacent groups are staggered.

[0011] As a further optimization of the present invention, the upper outer periphery of the stirring shaft is hinged to the end of the adjacent telescopic rod through a plurality of axially evenly distributed hinge seats.

[0012] As a further optimized solution of the present invention, a bidirectional spiral groove is provided on the outer periphery of the lower end of the stirring shaft, and a through-hole is provided in the middle of the lifting plate. A nut that matches the bidirectional spiral groove is fixedly installed in the through-hole, and the lifting plate is assembled with the bidirectional spiral groove through the nut. The lower end of the box is prismatic, and the lifting plate is polygonal and slides with the polygonal inner wall of the box.

[0013] As a further optimization of the present invention, the dosing assembly includes... The feed pipe is installed on the upper end face of the box, and its upper and lower ends extend to the top and inside of the box, respectively. The feed hopper has its discharge port installed at the upper opening of the feed pipe; The first sealing ring and the second sealing ring are respectively installed at the lower end and the upper end opening of the feed pipe; A sealing plug is slidably fitted into the inner hole of the first sealing ring to seal the lower opening of the feed pipe; The transmission rod is installed at one end on the lower end of the sealing plug, and the other end rests on the upper end face of the retaining ring and is slidably connected to the inner wall of the medicine storage box. When the retaining ring drives the transmission rod upward, the transmission rod drives the sealing plug upward, causing the inner hole of the first sealing ring to be in an open state. The medicine in the feed hopper falls into the medicine storage box through the inner hole of the second sealing ring, the feed pipe, and the inner hole of the first sealing ring, so that the medicine can be sprayed out through the outlet by centrifugal force. As the medicine storage box continues to rotate at high speed, after the retaining ring drives the transmission rod to move to the maximum stroke, the sealing plug moves into the inner hole of the second sealing ring to block it, so that the medicine in the feed hopper cannot fall into the medicine storage box through the feed pipe, thus realizing quantitative dosing.

[0014] As a further optimized solution of the present invention, a cover plate is installed on one side of the upper opening of the feed hopper, and a cylinder is installed on the cover plate. The movable end of the cylinder extends into the feed hopper and is equipped with a sealing plate. The sealing plate is aligned with the second sealing ring, and the diameter of the sealing plate is not less than the inner diameter of the second sealing ring. When the sealing plug moves into the inner hole of the second sealing ring, the cylinder drives the sealing plate to move down and press against the second sealing ring to block the discharge port.

[0015] As a further optimization of the present invention, the transmission rod is arc-shaped, with one end of the arc set vertically and fixedly connected to the bottom of the sealing plug, and the other end of the arc set horizontally and slidably connected to the longitudinal groove on the inner wall of the medicine storage box. An elastic element that can deform longitudinally is provided in the longitudinal groove.

[0016] The livestock wastewater purification device proposed in this invention has the following beneficial effects: (i) Achieving efficient mixing through "spraying component + stirring component": The storage box rotates at high speed with the stirring shaft. Centrifugal force drives the telescopic rod to retract, which moves the baffle ring upward to open the discharge port. The agent is sprayed out evenly in a radial pattern. Combined with multiple sets of staggered stirring paddles, the agent is in full contact with the sewage, which helps to improve the removal rate of suspended solids in sewage, reduce COD value, and solve the core problem of incomplete purification. (ii) The dosing assembly achieves precise dosing through the mechanical linkage between the retaining ring and the transmission rod: when the retaining ring moves up, the feed pipe is opened and the agent falls into the storage box. After the set amount is reached, the sealing plug rises to the second sealing ring to seal it. With the help of the cylinder-driven sealing plate, the dosing error is effectively controlled. Compared with traditional manual dosing, it can reduce the amount of agent consumed, avoid water pollution caused by excessive dosing, and reduce the health risks of manual contact with agents. (iii) The bidirectional spiral groove at the lower end of the stirring shaft drives the lifting plate to move up and down repeatedly, turning over the flocculants and other agents deposited at the bottom of the box to prevent insufficient reaction due to gravity settling. This design can greatly improve the utilization rate of the agents, and is especially suitable for the treatment of high-concentration fecal residue in livestock wastewater, reducing the frequency of agent replenishment. (iv) The filter plates of the effluent filtration assembly are quickly snapped together by positioning blocks and limiting blocks. The inclined design makes installation tool-free. Multiple sets of adjustment boxes are distributed around the perimeter to ensure that the filter plates are evenly stressed and to avoid leakage of dirt through gaps. The filter plates can be flexibly replaced with filter media such as activated carbon and quartz sand to deeply remove odors and residual organic matter, thereby improving the effluent water quality compliance rate and extending the maintenance cycle. (v) The device integrates the functions of dosing, stirring and filtering. It achieves full automation through servo motor drive, without the need for manual intervention. The mechanical linkage of dosing and stirring eliminates the need for an additional power source, and the energy consumption is significantly reduced compared to the separate equipment. The overall structure is compact and occupies a small area, making it suitable for installation in small and medium-sized farms. Workers only need to set parameters to operate it, which is convenient and quick.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 This is a schematic diagram of the spraying assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the dosing assembly of the present invention; Figure 5 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the structure of the water filtration assembly of the present invention; Figure 7 This is a schematic diagram of the internal structure of the adjustment box of the present invention.

[0019] Attached Figure Descriptions: 1. Box Body; 2. Top Cover; 3. Water Inlet Pipe; 4. Water Outlet Filter Assembly; 41. Water Outlet Pipe; 42. Sealing Cover; 43. Filter Plate; 44. Adjustment Box; 45. Positioning Block; 46. Limiting Block; 47. Positioning Column; 48. Movable Rod; 49. Spring; 5. Stirring Assembly; 51. Servo Motor; 52. Stirring Shaft; 53. Stirring Paddle; 54. Lifting Plate; 6. Dosing Assembly; 61. Feed Pipe; 62. Feed Hopper; 63. Cover Plate; 64. Cylinder; 65. Sealing Plate; 66. First Sealing Ring; 67. Second Sealing Ring; 68. Transmission Rod; 69. Sealing Plug; 7. Spraying Assembly; 71. Medicine Storage Box; 72. Discharge Port; 73. Retaining Ring; 74. Telescopic Rod. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] Please see Figures 1-3 as well as Figure 5 A livestock wastewater purification device includes a housing 1, with an inlet pipe 3 and an outlet filter assembly 4 installed at the upper and lower ends of the housing 1, respectively. A stirring assembly 5 and a dosing assembly 6 extending into the housing 1 are installed on the upper surface of the housing 1 via a top cover 2. The device is characterized in that a dosing assembly 7, which rotates synchronously with the stirring shaft of the stirring assembly 5, is installed in the upper part of the inner cavity of the housing 1. The dosing assembly 7 includes: The medicine storage box 71 is fixedly fitted on the outer periphery of the upper end of the stirring shaft of the stirring assembly 5, and the upper end is set as an opening to receive the medicine entering the box 1 through the dosing assembly 6. The discharge port 72 is located on the outer wall of the medicine storage box 71 and is connected to the lower part of the inner cavity of the medicine storage box 71; The retaining ring 73 is axially slidably fitted in the lower part of the inner cavity of the medicine storage box 71 and blocks the inner opening of the discharge port 72. The telescopic rod 74 has one end hinged to the outer wall of the stirring shaft of the stirring assembly 5, and the other end inclined downward and hinged to the lower part of the inner wall of the retaining ring 73. There are multiple telescopic rods 74 and they are evenly distributed around the circumference. When the stirring component 5 drives the telescopic rods 74 to rotate at high speed, under the action of centrifugal force, the telescopic rods 74 gradually contract and drive the retaining ring 73 to gradually move upward, so as to expose the inner opening of the discharge port 72, so that the medicine is evenly sprayed out through the discharge port 72 under the action of centrifugal force. To address the problems of uneven drug mixing and poor purification effect in traditional devices, this device achieves high-efficiency purification through "centrifugal spraying + stirring synergy". The drug storage box 71 rotates with the stirring shaft, and the centrifugal force causes the telescopic rod 74 to contract, which drives the baffle ring 73 to move upward and open the discharge port 72. Under the action of centrifugal force, the drug is evenly sprayed out radially, avoiding local accumulation of the drug and improving the mixing efficiency of the drug and sewage. It is especially suitable for the flocculation treatment of high concentration of suspended solids in livestock sewage.

[0023] Furthermore, such as Figure 3 As shown, there are multiple discharge ports 72, which are evenly distributed around the outer wall of the medicine storage box 71. The bottom surface of the inner cavity of the discharge port 72 is flush with the bottom surface of the inner cavity of the medicine storage box 71, and the height of the discharge port 72 is not greater than the height of the retaining ring 73. Multiple discharge ports 72 ensure 360° uniform diffusion of the agent, and the flush bottom design avoids agent residue, with a residue level of ≤1%. The height of the discharge port is less than the height of the retaining ring 73 to ensure complete sealing when not in operation and prevent premature leakage of the agent.

[0024] Furthermore, the upper end of the telescopic rod 74 is connected to the outer wall of the stirring shaft of the stirring assembly 5 by a torsion spring. The two ends of the torsion spring are respectively connected to the outer wall of the stirring shaft 52 and the lower surface of the upper end of the telescopic rod 74. By utilizing the elastic deformation of the torsion spring, the telescopic rod 74 is reset when the stirring shaft stops rotating, causing the retaining ring 73 to move down and close the discharge port 72, thus preventing the agent from leaking when the machine stops. This design requires no additional power, simplifies the structure, and reduces energy consumption.

[0025] Specifically, such as Figure 2 As shown, the stirring assembly 5 includes: Servo motor 51 is mounted on the upper end face of housing 1; The stirring shaft 52 is rotatably installed inside the housing 1 and its upper end is connected to the downward-facing output end of the servo motor 51. The stirring paddle 53 is installed on the outer periphery of the stirring shaft 52; The lifting plate 54 is slidably mounted on the bottom of the inner cavity of the box 1, and is driven to move up and down repeatedly by the lower end of the stirring shaft 52 to agitate the medicine that has settled to the bottom. Servo motor 51 drives stirring shaft 52 to rotate, stirring paddle 53 shears and mixes sewage and chemicals, lifting plate 54 moves up and down with stirring shaft, turning over chemicals, such as flocculants, deposited at the bottom of tank to prevent incomplete reaction due to gravity settling, which helps to improve the utilization rate of chemicals.

[0026] Furthermore, there are multiple agitators 53, which are divided into multiple groups and are evenly distributed along the length of the agitator shaft 52. Each group has multiple agitators 53 evenly distributed circumferentially and extending radially, and the agitators 53 of adjacent groups are staggered. Multiple sets of staggered stirring paddles 53 form a three-dimensional stirring zone, enhancing the turbulence effect and shortening the mixing time between the reagent and the wastewater, thereby improving the purification efficiency.

[0027] Furthermore, the upper outer periphery of the stirring shaft 52 is hinged to the end of the adjacent telescopic rod 74 through a plurality of axially evenly distributed hinge seats. The number of hinged seats matches the telescopic rod, ensuring that the telescopic rod 74 can rotate flexibly, adapt to angle changes under centrifugal force, avoid mechanical jamming, and extend service life.

[0028] Furthermore, a bidirectional spiral groove is provided on the lower outer periphery of the stirring shaft 52, and a through-hole is provided in the middle of the lifting plate 54. A nut that matches the bidirectional spiral groove is fixedly installed in the through-hole, and the lifting plate 54 is assembled with the bidirectional spiral groove through the nut. The lower end of the box 1 is prismatic, and the lifting plate 54 is polygonal and is slidably assembled with the polygonal inner wall of the box 1. The bidirectional spiral groove, in conjunction with the nut, converts the rotational motion of the stirring shaft into the reciprocating lifting motion of the lifting plate 54. The polygonal structure restricts the rotation of the lifting plate, ensuring stable agitation of the sedimentation agent and avoiding local dead zones, thereby improving the removal rate of suspended solids in wastewater.

[0029] Specifically, such as Figure 3 and Figure 4 As shown, the dosing assembly 6 includes: The feed pipe 61 is installed on the upper end face of the box 1, and its upper and lower ends extend to the top and inside of the box 1, respectively. The feed hopper 62 has an outlet installed at the upper opening of the feed pipe 61; The first sealing ring 66 and the second sealing ring 67 are respectively installed at the lower end and the upper end opening of the feed pipe 61; The sealing plug 69 is slidably fitted into the inner hole of the first sealing ring 66 and is used to block the lower opening of the feed pipe 61. The transmission rod 68 has one end installed at the lower end of the sealing plug 69, and the other end rests on the upper end face of the retaining ring 73 and is slidably connected to the inner wall of the medicine storage box 71. When the retaining ring 73 drives the transmission rod 68 to move upward, the transmission rod 68 drives the sealing plug 69 to move upward, so that the inner hole of the first sealing ring 66 is in the open state. The medicine in the feed hopper 62 falls into the medicine storage box 71 through the inner hole of the second sealing ring 67, the feed pipe 61 and the inner hole of the first sealing ring 66, so that the medicine can be sprayed out through the discharge port 72 by centrifugal force. As the medicine storage box 71 continues to rotate at high speed, after the retaining ring 73 drives the transmission rod 68 to move to the maximum stroke, the sealing plug 69 moves into the inner hole of the second sealing ring 67 to block it, so that the medicine in the feed hopper 62 cannot fall into the medicine storage box 71 through the feed pipe 61, thus realizing quantitative drug addition. The dosing assembly 6 achieves quantitative dosing through the linkage between the retaining ring 73 and the transmission rod 68: the retaining ring 73 moves upward to open the feed pipe 61, and the agent falls into the storage box 71. When the sealing plug 69 rises to the second sealing ring 67 to seal, the set dosing amount is reached. This can control dosing errors, improve dosing accuracy, avoid secondary pollution caused by excessive manual dosing, and also help reduce agent consumption, thereby reducing costs.

[0030] Furthermore, a cover plate 63 is installed on one side of the upper opening of the feed hopper 62, and a cylinder 64 is installed on the cover plate 63. The movable end of the cylinder 64 extends into the feed hopper 62 and is fitted with a sealing plate 65. The sealing plate 65 is aligned with the second sealing ring 67, and the diameter of the sealing plate 65 is not less than the inner diameter of the second sealing ring 67. When the sealing plug 69 moves into the inner hole of the second sealing ring 67, the cylinder 64 drives the sealing plate 65 to move down and press against the second sealing ring 67 to seal the discharge port. The cylinder 64 drives the sealing plate 65 and the sealing plug 69 to form a double seal, ensuring no drug leakage after quantitative dosing. The diameter of the sealing plate 65 is larger than the inner hole of the second sealing ring 67, which enhances the reliability of the seal and adapts to the corrosive environment in livestock wastewater treatment.

[0031] Furthermore, the transmission rod 68 is arc-shaped, with one end of the arc set vertically and fixedly connected to the bottom of the sealing plug 69, and the other end of the arc set horizontally and slidably connected to the longitudinal groove on the inner wall of the medicine storage box 71. An elastic element that can deform longitudinally is provided in the longitudinal groove. The buffer transmission impact between the longitudinal groove and the elastic element avoids rigid collision between the sealing plug and the sealing ring, extends the life of the sealing assembly, and also facilitates the downward movement and reset of the transmission rod 68 and the sealing plug 69 after the machine stops.

[0032] Specifically, such as Figure 6 As shown, the water filtration assembly 4 includes: Water outlet pipe 41 is installed on the lower side of the tank 1; The sealing cover 42 is hinged to the end of the water outlet pipe 41 away from the tank 1 and seals the opening of the water outlet pipe 41. The filter plate 43 is slidably fitted into the water outlet pipe 41 and locked by the adjusting box 44. The filter plate 43 can be made of activated carbon, quartz sand or other materials to deeply filter the purified wastewater. The adjustable box 44 can be quickly locked and replaced to reduce the COD value of the water, thereby meeting the "Emission Standard of Pollutants for Livestock and Poultry Farming".

[0033] Furthermore, such as Figure 7 As shown, the inside of the adjusting box 44 is provided with a limiting block 46 that extends radially into the water outlet pipe 41, and the extension length of the limiting block 46 is adjustable. The inner wall of the water outlet pipe 41 is provided with a positioning block 45 located upstream of the limiting block 46 and opposite to each other. The filter plate 43 is snapped between the positioning block 45 and the limiting block 46. The limiting block 46 and the positioning block 45 work together to clamp the filter plate 43, ensuring no shaking during filtration and preventing leakage of dirt from gaps. The length of the limiting block 46 is adjustable, making it convenient to disassemble and assemble the filter plate.

[0034] Furthermore, a positioning hole is provided on the side of the positioning block 45 near the filter plate 43, and a positioning post 47 that is adapted to and corresponds to the positioning hole is installed on one end face of the filter plate 43. The two end faces of the filter plate 43 are respectively attached to the positioning block 45 and the limiting block 46, and the positioning post 47 is tightly inserted into the positioning hole. The positioning post 47 cooperates with the positioning hole to ensure the precise positioning of the filter plate 43, avoid uneven filtration caused by installation deviation, and improve filtration efficiency.

[0035] Furthermore, such as Figure 7 As shown, a movable rod 48 is installed at one end of the limiting block 46 inside the adjusting box 44, and the other end of the movable rod 48 slides through and extends to the outside of the adjusting box 44. A spring 49 is fitted on the movable rod 48 and fixed between the inner wall of the adjusting box 44 and the limiting block 46. Spring 49 provides continuous clamping force to ensure that limit block 46 fits tightly with filter plate, and movable rod 48 facilitates manual adjustment of limit block position, simplifying filter plate replacement operation.

[0036] Furthermore, there are multiple regulating boxes 44, which are evenly distributed circumferentially on the outer wall of the water outlet pipe 41. The movable rod 48 and the regulating box 44, and the limiting block 46 and the water outlet pipe 41 are all in sliding seal to prevent water leakage. Multiple adjustment boxes are distributed 44 times around the perimeter to ensure that the filter plate is subjected to uniform force. The sliding seal design uses O-rings to prevent sewage leakage and is suitable for high humidity breeding environments.

[0037] Furthermore, the end of the limiting block 46 located inside the water outlet pipe 41 has an inclined surface near the opening of the water outlet pipe 41. The filter plate 43 presses the inclined surfaces of the multiple limiting blocks 46, causing the limiting blocks 46 to move into the adjusting box 44 until the limiting blocks 46 are completely removed from the inner cavity of the water outlet pipe 41. At this time, the filter plate 43 can move smoothly to fit with the positioning block 45. Under the restoring action of the movable rod 48, the limiting block 46 extends into the water outlet pipe 41 again and jams the filter plate 43 inside the water outlet pipe 41. The sloping design automatically compresses and retracts the limiting block when the filter plate is inserted, allowing for tool-free installation. The restoring force of the movable rod drives the limiting block to reset and lock, greatly improving installation efficiency and making it suitable for the rapid maintenance needs of farms.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A livestock breeding wastewater purification device, comprising a housing (1), wherein an inlet pipe (3) and an outlet filter assembly (4) are respectively installed at the upper and lower ends of the housing (1), and a stirring assembly (5) and a dosing assembly (6) extending into the housing (1) are installed on the upper end surface of the housing (1) through a top cover (2), characterized in that, The upper part of the inner cavity of the housing (1) is equipped with a spraying assembly (7) that rotates synchronously with the stirring shaft of the stirring assembly (5). The spraying assembly (7) includes... The medicine storage box (71) is fixedly fitted on the outer periphery of the upper end of the stirring shaft of the stirring assembly (5), and the upper end is set as an opening to receive the medicine entering the box (1) through the dosing assembly (6); The discharge port (72) is located on the outer wall of the medicine storage box (71) and is connected to the lower part of the inner cavity of the medicine storage box (71); The retaining ring (73) is axially slidably fitted in the lower part of the inner cavity of the medicine storage box (71) and blocks the inner opening of the discharge port (72); The telescopic rod (74) has one end hinged to the outer wall of the stirring shaft of the stirring assembly (5), and the other end tilts downward and is hinged to the lower part of the inner wall of the retaining ring (73). The telescopic rods (74) are numerous and evenly distributed around the circumference. When the stirring assembly (5) drives the telescopic rods (74) to rotate at high speed, under the action of centrifugal force, the telescopic rods (74) gradually contract and drive the retaining ring (73) to gradually move upward, so as to expose the inner opening of the discharge port (72), so that the medicine is evenly sprayed out through the discharge port (72) under the action of centrifugal force.

2. The livestock breeding wastewater purification device according to claim 1, characterized in that, The number of discharge ports (72) is multiple and they are evenly distributed around the outer wall of the medicine storage box (71). The bottom surface of the inner cavity of the discharge port (72) is flush with the bottom surface of the inner cavity of the medicine storage box (71), and the height of the discharge port (72) is not greater than the height of the retaining ring (73).

3. The livestock breeding wastewater purification device according to claim 1, characterized in that, The upper end of the telescopic rod (74) is connected to the outer wall of the stirring shaft of the stirring assembly (5) by a torsion spring.

4. The livestock breeding wastewater purification device according to claim 1, characterized in that, The stirring assembly (5) includes A servo motor (51) is installed on the upper end face of the housing (1); The stirring shaft (52) is rotatably installed inside the housing (1) and its upper end is connected to the downward-facing output end of the servo motor (51); A stirring paddle (53) is installed on the outer periphery of the stirring shaft (52); The lifting plate (54) is slidably mounted on the bottom of the inner cavity of the box (1), and is driven by the lower end of the stirring shaft (52) to move the lifting plate (54) up and down repeatedly to agitate the medicine that has sunk to the bottom.

5. The livestock breeding wastewater purification device according to claim 4, characterized in that, The number of stirring paddles (53) is multiple and divided into multiple groups and evenly distributed along the length direction of the stirring shaft (52). Each group has multiple stirring paddles (53) evenly distributed circumferentially and extending radially, and the stirring paddles (53) of adjacent groups are staggered.

6. The livestock breeding wastewater purification device according to claim 4, characterized in that, The upper outer periphery of the stirring shaft (52) is hinged to the end of the adjacent telescopic rod (74) through multiple axially evenly distributed hinge seats.

7. The livestock breeding wastewater purification device according to claim 4, characterized in that, The lower end of the stirring shaft (52) has a bidirectional spiral groove, and the middle part of the lifting plate (54) has a through hole, and a nut that matches the bidirectional spiral groove is fixedly installed in the hole. The lifting plate (54) is assembled with the bidirectional spiral groove through the nut.

8. The livestock breeding wastewater purification device according to claim 1, characterized in that, The dosing assembly (6) includes The feed pipe (61) is installed on the upper end face of the box (1), and its upper and lower ends extend to the top and inside of the box (1) respectively; The feed hopper (62) has an outlet installed at the upper opening of the feed pipe (61); The first sealing ring (66) and the second sealing ring (67) are respectively installed at the lower end and the upper end opening of the feed pipe (61); The sealing plug (69) is slidably fitted into the inner hole of the first sealing ring (66) to seal the lower opening of the feed pipe (61); The transmission rod (68) is installed at one end on the lower end of the sealing plug (69) and at the other end on the upper end face of the retaining ring (73) and slidably connected to the inner wall of the medicine storage box (71).

9. A livestock breeding wastewater purification device according to claim 8, characterized in that, A cover plate (63) is installed on one side of the upper opening of the feed hopper (62). A cylinder (64) is installed on the cover plate (63). The movable end of the cylinder (64) extends into the feed hopper (62) and is fitted with a sealing plate (65). The sealing plate (65) is aligned with the second sealing ring (67), and the diameter of the sealing plate (65) is not less than the inner diameter of the second sealing ring (67).

10. A livestock breeding wastewater purification device according to claim 8, characterized in that, The transmission rod (68) is arc-shaped. One end of the arc is set vertically and fixedly connected to the bottom of the sealing plug (69). The other end of the arc is set horizontally and slidably connected to the longitudinal groove on the inner wall of the medicine storage box (71). An elastic element that can deform longitudinally is provided in the longitudinal groove.

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