Waste water multi-stage treatment device for agricultural breeding

Abstract

The invention relates to the technical field of water pollution treatment, and discloses a wastewater multi-stage treatment device for agricultural cultivation, the wastewater multi-stage treatment device comprises a pretreatment mechanism, the side surface of the pretreatment mechanism is provided with a sewage conveying assembly, and the output end of the sewage conveying assembly is provided with a mixing mechanism. In the process that the stirring rod drives the stirring frame to rotate, wastewater can be uniformly mixed, large impurities in the wastewater can be synchronously intercepted, the integrated design of stirring and filtering is achieved, the overall structure is compact, and no extra space is occupied; the liftable filter screen plate is arranged, the servo motor is controlled to rotate reversely within the preset cleaning time, impurities intercepted on the incident flow face of the filter plate move to the back face and are attached to the surface of the filter screen plate through reverse flowing of waste water, and therefore automatic cleaning of the filter plate is completed, manual disassembly and cleaning are not needed in the whole process, and the cleaning efficiency is improved. And the labor intensity and the operation and maintenance cost can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of water pollution treatment technology, and more specifically to a multi-stage treatment device for agricultural and aquaculture wastewater. Background Technology

[0002] Agricultural farming activities, especially livestock and aquaculture, generate a large amount of wastewater rich in organic matter, solid manure, uneaten feed, and pollutants such as nitrogen and phosphorus. If discharged directly without effective treatment, it will cause serious organic pollution and eutrophication problems to the receiving water bodies and damage the ecological environment. Therefore, it is essential to use multi-stage treatment processes to purify aquaculture wastewater. Currently, common multi-stage treatment devices for agricultural and livestock wastewater typically include multiple units such as solid-liquid separation, flocculation sedimentation, and biochemical treatment. In the primary solid-liquid separation or mixed flocculation stage, filtration devices are usually installed to intercept larger suspended solids and solid impurities in the wastewater. However, in actual operation, these filtration devices are easily clogged by feces, uneaten feed, hair, and other debris, leading to a decrease in filtration efficiency and even equipment shutdown. In order to maintain the normal operation of the system, the filtration devices need to be cleaned or replaced manually frequently. This not only increases labor intensity and operation and maintenance costs, but also often requires interruption of the treatment process during cleaning, affecting the overall treatment efficiency. Therefore, there is an urgent need for a multi-stage wastewater treatment device for agricultural and aquaculture to solve the aforementioned technical problems. Summary of the Invention

[0003] To overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage wastewater treatment device for agricultural and aquaculture, including a pretreatment mechanism, a biochemical treatment mechanism at one end of the pretreatment mechanism, and a deep treatment mechanism at the side of the biochemical treatment mechanism. The pretreatment mechanism, the biochemical treatment mechanism and the deep treatment mechanism are connected by a conveying pipe assembly for wastewater transport. A sewage conveying assembly is installed on the side of the pretreatment mechanism, and a mixing mechanism is installed at the output end of the sewage conveying assembly. The mixing mechanism includes a mixing tank, wherein the output end of the wastewater conveying component is located inside the bottom of the mixing tank, a platform is installed on the top of the mixing tank, and a mixing and recovery mechanism is installed on the top of the platform. The mixing and recovery mechanism includes a servo motor, wherein the servo motor is installed in the middle area of ​​the upper surface of the platform, and a stirring rod is installed at the output end of the servo motor. Stirring and filtering components are installed on both sides of the stirring rod for uniformly stirring and mixing the wastewater inside the mixing tank and filtering impurities in the wastewater. The biochemical treatment unit is equipped with a temperature control device to regulate the internal temperature of the biochemical treatment unit so that the microorganisms inside are in an optimal activity state.

[0004] Preferably, the temperature control device includes a temperature sensor and a heating element. The temperature sensor is used to monitor the temperature inside the biochemical treatment unit in real time, and the heating element starts or stops working according to the monitoring results of the temperature sensor, thereby maintaining the temperature inside the biochemical treatment unit within a suitable range required by microorganisms.

[0005] Preferably, the stirring and filtering assembly includes a stirring frame; The side of the stirring frame closest to the stirring rod is fixedly connected to the side of the stirring rod via a bracket.

[0006] Preferably, a limiting groove is provided inside the stirring frame, and a filter plate is embedded in the limiting groove. Hollow plates with slots are also provided on both sides of the filter surface of the filter plate on the stirring frame.

[0007] Preferably, a recycling bin is fixedly installed on the top of the platform, and recycling pipes are installed through both sides of the recycling bin. A protective plate is installed through the end of each recycling pipe away from the recycling bin, and each set of protective plates is installed on both sides of the upper surface of the platform.

[0008] Preferably, each set of protective plates is equipped with an electro-hydraulic rod on both sides of the top, and an electro-magnetic suction plate is installed on the lifting end of each set of electro-hydraulic rods. A limit plate is movably installed at the bottom of each set of electro-magnetic suction plates, wherein the top of the limit plate is provided with a magnetic suction groove that is compatible with the electro-magnetic suction plate. When the electrically controlled magnetic chuck is powered on, a magnetic attraction force is generated between it and the magnetic groove, fixing the two together.

[0009] Preferably, auxiliary plates are installed on the opposite sides of the two sets of limiting plates, and the same recycling plate is installed on the opposite sides of the two sets of auxiliary plates. A filter plate is installed inside the recycling plate, and an electric control door is installed on the inner side of the bottom of the protective plate. The outer side of each set of limiting plates is adapted to the inner side of its adjacent hollow plate.

[0010] The technical effects and advantages of this invention are as follows: 1. This invention integrates the filter plate onto the stirring frame. As the stirring rod drives the stirring frame to rotate, it can both uniformly mix the wastewater and simultaneously intercept large impurities in the wastewater. This achieves an integrated design of stirring and filtration, with a compact overall structure that does not occupy extra space.

[0011] 2. The entire cleaning process of this invention uses an electro-hydraulic rod in conjunction with an electro-magnetic suction plate to control the lifting and resetting of the filter screen, which can achieve automated operation without interrupting the normal wastewater treatment process, ensuring stable and continuous treatment efficiency. At the same time, the recovery chamber adsorbs and recovers impurities on the surface of the filter screen, avoiding secondary pollution caused by impurities during the treatment process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 The diagram shows the internal structure of the pre-processing mechanism. Figure 3 for Figure 2 The diagram shows the overall structure of the mixing mechanism. Figure 4 for Figure 3 A side sectional view of the mixing tank shown; Figure 5 for Figure 4 The diagram shows the overall structure of the mixing and recovery mechanism. Figure 6 for Figure 5 The diagram shows the overall structure of the stirring frame. Figure 7 for Figure 5 The side sectional view of the protective plate shown; Figure 8 for Figure 7 The diagram shows the overall structure of the electro-hydraulic rod.

[0013] The attached diagram is labeled as follows: 1. Pretreatment mechanism; 2. Biochemical treatment mechanism; 3. Advanced treatment mechanism; 4. Wastewater conveying assembly; 5. Mixing mechanism; 501. Mixing tank; 502. Platform; 6. Mixing and recovery mechanism; 601. Protective plate; 602. Recovery chamber; 603. Stirring and filtering assembly; 6031. Stirring frame; 6032. Filter plate; 6033. Limiting groove; 6034. Hollow plate; 604. Recovery pipe; 605. Servo motor; 606. Stirring rod; 607. Electro-hydraulic rod; 608. Limiting plate; 609. Electrically controlled door; 610. Electrically controlled magnetic suction plate; 611. Magnetic suction groove; 612. Auxiliary plate; 613. Filter screen plate; 614. Recovery plate. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The multi-stage wastewater treatment device for agricultural and aquaculture involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Reference Figures 1 to 5As shown, the present invention provides a multi-stage wastewater treatment device for agricultural and aquaculture, including a pretreatment mechanism 1, a biochemical treatment mechanism 2 at one end of the pretreatment mechanism 1, and a deep treatment mechanism 3 on the side of the biochemical treatment mechanism 2. The pretreatment mechanism 1, the biochemical treatment mechanism 2 and the deep treatment mechanism 3 are connected by a conveying pipe assembly for wastewater transport. A sewage conveying assembly 4 is installed on the side of the pretreatment unit 1. A mixing mechanism 5 is installed at the output end of the sewage conveying assembly 4. The mixing mechanism 5 includes a mixing tank 501. The output end of the sewage conveying assembly 4 is located inside the bottom of the mixing tank 501. A platform 502 is installed on the top of the mixing tank 501. A mixing and recovery mechanism 6 is installed on the top of the platform 502. The mixing and recovery mechanism 6 includes a servo motor 605. The servo motor 605 is installed in the middle area of ​​the upper surface of the platform 502. A stirring rod 606 is installed at the output end of the servo motor 605. A stirring and filtering assembly 603 is installed on both sides of the stirring rod 606 to uniformly stir and mix the wastewater inside the mixing tank 501 and filter the impurities in the wastewater. The biochemical treatment unit 2 is equipped with a temperature control device to regulate the internal temperature of the biochemical treatment unit 2 so that the microorganisms inside are in the optimal activity state.

[0016] In this embodiment, the temperature control device includes a temperature sensor and a heating element. The temperature sensor is used to monitor the temperature inside the biochemical treatment unit 2 in real time. The heating element starts or stops working according to the monitoring results of the temperature sensor, thereby maintaining the temperature inside the biochemical treatment unit 2 within a suitable range required by microorganisms.

[0017] Reference Figures 3 to 7 As shown, the present invention provides a multi-stage wastewater treatment device for agricultural and aquaculture use, wherein the stirring and filtering component 603 includes a stirring frame 6031; The side of the stirring frame 6031 closest to the stirring rod 606 is fixedly connected to the side of the stirring rod 606 via a bracket.

[0018] The stirring frame 6031 has a limiting groove 6033 inside, and a filter plate 6032 is embedded in the limiting groove 6033. On the stirring frame 6031, on both sides of the filter surface of the filter plate 6032, there are also slotted hollow plates 6034.

[0019] The specific workflow of this application embodiment is as follows: external wastewater is transported to the interior of the mixing tank 501 through the sewage conveying component 4. When the wastewater in the mixing tank 501 is stored to the preset liquid level, the servo motor 605 inputs a positive current to drive the stirring rod 606 and the stirring frame 6031 to rotate clockwise. During the rotation of the stirring frame 6031, the wastewater in the mixing tank 501 is mixed evenly, and at the same time, large impurities in the wastewater are intercepted and remain on the filter surface of the filter plate 6032.

[0020] A recycling bin 602 is fixedly installed on the top of the platform 502. Recycling pipes 604 are installed through both sides of the recycling bin 602. A protective plate 601 is installed through one end of each recycling pipe 604 away from the recycling bin 602. Each set of protective plates 601 is installed on both sides of the upper surface of the platform 502. Each set of protective plates 601 has an electro-hydraulic rod 607 installed on both sides of the top. Each set of electro-hydraulic rod 607 has an electro-magnetic suction plate 610 installed at the lifting end. Each set of electro-magnetic suction plates 610 has a limit plate 608 movably installed at the bottom. The limit plate 608 has a magnetic suction groove 611 on the top that is compatible with the electro-magnetic suction plate 610. When the electrically controlled magnetic plate 610 is powered on, a magnetic attraction force is generated between it and the magnetic groove 611, so that the two are fixedly connected. Auxiliary plates 612 are installed on the opposite sides of the two sets of limiting plates 608. The same recycling plate 614 is installed on the opposite sides of the two sets of auxiliary plates 612. A filter plate 613 is installed inside the recycling plate 614. An electric control door 609 is installed on the inner side of the bottom of the protective plate 601. The outer side of each set of limiting plates 608 is adapted to the inner side of its adjacent hollow plate 6034.

[0021] In this embodiment, the stirring frame 6031 has a stepped groove inside, which helps to guide the sedimentation of impurities. The filter plate 6032 is installed at the smaller end of the inner side of the stirring frame 6031, that is, at the position away from the flow-facing surface of the stirring frame 6031. During operation, impurities in the wastewater are intercepted by the filter plate 6032 and remain on the surface of the filter plate 6032 or slide down along the groove to the bottom of the stirring frame 6031 and accumulate. The recycling plate 614 is designed with an L-shaped structure to facilitate the collection and containment of fallen impurities; The filter screen plate 613 is made of flexible material and has good deformation adaptability. When the filter plate 6032 is backwashed and cleaned, the detached impurities will move downward and adhere to the surface of the filter screen plate 613. As the impurities on the surface of the filter screen plate 613 gradually increase, it undergoes adaptive deformation to form a depression or a wrapping shape, thereby effectively preventing the impurities from slipping off again and ensuring that the impurities remain stably on the filter screen plate 613, which is convenient for subsequent centralized recycling and processing.

[0022] This embodiment of the application sets up a liftable filter plate 613 and controls the servo motor 605 to rotate in the opposite direction at a preset cleaning time. The reverse flow of wastewater causes the impurities trapped on the front side of the filter plate 6032 to move to the back side and adhere to the surface of the filter plate 613, thereby completing the automatic cleaning of the filter plate 6032. The whole process does not require manual disassembly and cleaning, which can effectively reduce labor intensity and maintenance costs.

[0023] The specific workflow for this application is as follows: Step 1: External wastewater is transported to the interior of the mixing tank 501 through the wastewater conveying assembly 4. When the wastewater in the mixing tank 501 reaches the preset liquid level, the servo motor 605 is input with positive current to drive the stirring rod 606 and the stirring frame 6031 to rotate clockwise. During the rotation of the stirring frame 6031, the wastewater in the mixing tank 501 is mixed evenly, and at the same time, large impurities in the wastewater are intercepted and remain on the filter surface of the filter plate 6032. Step 2: When the preset cleaning time is reached, the electric control door 609 opens, and the electric control hydraulic rod 607 drives the filter screen plate 613 to descend to the position corresponding to the back of the filter plate 6032. During the descent, each set of limit plates 608 moves into the corresponding hollow plate 6034. At the same time, the electric control magnetic suction plate 610 is de-energized, and the magnetic attraction between it and the magnetic suction groove 611 disappears. Subsequently, the electric control hydraulic rod 607 resets. At this time, the two sides of the recovery plate 614 are attached to the sides of the hollow plate 6034, and the bottom of the recovery plate 614 is attached to the bottom of the stirring frame 6031. Next, the servo motor 605 inputs reverse current to drive the stirring rod 606 and the stirring frame 6031 to rotate counterclockwise. As the stirring frame 6031 rotates in the opposite direction, the impurities trapped on the front surface of the filter plate 6032 gradually detach and move to the back side, eventually adhering to the surface of the filter screen plate 613. After the preset cleaning time is reached, the electro-hydraulic rod 607 drives the electro-magnetic plate 610 to move towards the corresponding magnetic groove 611 and is energized, so that the lifting end of the electro-hydraulic rod 607 is fixedly connected to the limiting plate 608 by magnetic attraction. Subsequently, the electro-hydraulic rod 607 drives the filter plate 613 to move into the corresponding protective plate 601. When the filter plate 613 is reset, the recovery chamber 602 generates an adsorption force and is transported to the inside of the protective plate 601 through the recovery pipe 604 to recover the impurities on the surface of the filter plate 613.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage wastewater treatment device for agricultural and aquaculture use, comprising a pretreatment mechanism (1), a biochemical treatment mechanism (2) being provided at one end of the pretreatment mechanism (1), and a deep treatment mechanism (3) being provided on the side of the biochemical treatment mechanism (2), wherein wastewater is transported between the pretreatment mechanism (1), the biochemical treatment mechanism (2), and the deep treatment mechanism (3) via a conveying pipe assembly, characterized in that, The pretreatment mechanism (1) is equipped with a sewage conveying assembly (4) on its side, and a mixing mechanism (5) is installed at the output end of the sewage conveying assembly (4). The mixing mechanism (5) includes a mixing tank (501), wherein the output end of the sewage conveying component (4) is located inside the bottom of the mixing tank (501), a platform (502) is installed on the top of the mixing tank (501), and a mixing and recovery mechanism (6) is provided on the top of the platform (502). The mixing and recovery mechanism (6) includes a servo motor (605), wherein the servo motor (605) is installed in the middle area of ​​the upper surface of the platform (502), wherein a stirring rod (606) is installed at the output end of the servo motor (605), and stirring and filtering components (603) are installed on both sides of the stirring rod (606) for uniformly stirring and mixing the wastewater inside the mixing tank (501) and filtering the impurities in the wastewater. The biochemical treatment unit (2) is equipped with a temperature control device to regulate the temperature inside the biochemical treatment unit (2) so that the microorganisms inside are in the most active state.

2. The multi-stage wastewater treatment device for agricultural and livestock farming according to claim 1, characterized in that: The temperature control device includes a temperature sensor and a heating element. The temperature sensor is used to monitor the temperature inside the biochemical treatment unit (2) in real time. The heating element starts or stops working according to the monitoring results of the temperature sensor, thereby maintaining the temperature inside the biochemical treatment unit (2) within a suitable range required by microorganisms.

3. The multi-stage wastewater treatment device for agricultural and livestock farming according to claim 1, characterized in that: The stirring and filtering assembly (603) includes a stirring frame (6031); The stirring frame (6031) is fixedly connected to the side of the stirring rod (606) via a bracket on the side of the stirring rod (606).

4. The multi-stage wastewater treatment device for agricultural and livestock farming according to claim 3, characterized in that: The stirring frame (6031) has a limiting groove (6033) inside, and a filter plate (6032) is embedded in the limiting groove (6033). On the stirring frame (6031), on both sides of the filter surface of the filter plate (6032), there are also slotted hollow plates (6034).

5. The multi-stage wastewater treatment device for agricultural and livestock farming according to claim 4, characterized in that: A recycling bin (602) is fixedly installed on the top of the platform (502). Recycling pipes (604) are installed through both sides of the recycling bin (602). A protective plate (601) is installed through one end of each recycling pipe (604) away from the recycling bin (602). Each set of protective plates (601) is installed on both sides of the upper surface of the platform (502).

6. The multi-stage wastewater treatment device for agricultural and livestock farming according to claim 5, characterized in that: Each set of protective plates (601) has an electro-hydraulic rod (607) installed on both sides of the top. Each set of electro-hydraulic rods (607) has an electro-magnetic suction plate (610) installed at the lifting end. Each set of electro-magnetic suction plates (610) has a limit plate (608) movably installed at the bottom. The limit plate (608) has a magnetic suction groove (611) on the top that is compatible with the electro-magnetic suction plate (610). When the electrically controlled magnetic plate (610) is energized, it generates a magnetic attraction force with the magnetic groove (611), so that the two are fixedly connected.

7. The multi-stage wastewater treatment device for agricultural and livestock farming according to claim 6, characterized in that: Auxiliary plates (612) are installed on the opposite sides of the two sets of limiting plates (608), and the same recycling plate (614) is installed on the opposite sides of the two sets of auxiliary plates (612). A filter plate (613) is installed inside the recycling plate (614). An electric control door (609) is installed on the inner side of the bottom of the protective plate (601). The outer side of each set of limiting plates (608) is adapted to the inner side of its adjacent hollow plate (6034).

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