Wastewater treatment device and method for pig breeding

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment device and method for pig breeding, and the device comprises a wastewater treatment well arranged underground, a potential energy conversion channel, a wastewater discharge pipe, a wastewater discharge pipe, a wastewater discharge pipe, a wastewater discharge pipe and a wastewater discharge pipe, and the potential energy conversion channel is communicated with the inner top of the wastewater treatment well; a plurality of potential energy conversion assemblies are symmetrically arranged on the two sides in the potential energy conversion channel, the self-cleaning filter assembly is arranged in the wastewater treatment well on the lower side of the potential energy conversion channel, and the sedimentation tank is arranged at the bottom in the wastewater treatment well below the self-cleaning filter assembly. According to the device, pig breeding wastewater is automatically treated and can be repeatedly refluxed and utilized, potential energy conversion is utilized, the treatment cost is fully reduced, and high processing efficiency is kept.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a wastewater treatment device and a treatment method for pig breeding. Background Art

[0002] Pig farming wastewater refers to wastewater generated during the pig farming process that contains pollutants such as organic matter, nitrogen, and phosphorus. If this type of wastewater is not properly treated and directly discharged, it will cause serious pollution to the environment and affect water quality and ecological balance.

[0003] When the existing wastewater treatment device treats pig breeding wastewater, the whole process is relatively complicated. For pig breeding wastewater, its main components are mostly solid-liquid mixtures of pig excrement, sludge and pig feed. When treating it, it is mainly to separate the solid and liquid of the above components, and then re-treat the separated solid and liquid components. Then, when the existing device treats the above process, it needs to cooperate with a variety of power mechanisms, among which the power system is mainly used to control the transmission of wastewater. Although it can effectively treat the wastewater, long-term processing and operation will also consume a lot of energy, resulting in an increase in treatment costs. Moreover, after the solid-liquid separation of the wastewater, the liquid needs to be recycled after multi-stage fine treatment, which will also increase the cost of recycling. At the same time, in the process of treating the wastewater, filtration, air drying and transfer of solids all require energy consumption; Therefore, in view of the above-mentioned problems, the present technical solution proposes a wastewater treatment device and a treatment method for pig farming. Summary of the invention

[0004] The object of the present invention is to provide a wastewater treatment device for pig farming to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wastewater treatment device for pig farming, comprising a wastewater treatment well opened under the ground, the top of the wastewater treatment well is connected to the discharge point of the pig farming area through a wastewater discharge pipe, and the wastewater generated during pig farming in the pig farming area is directly transferred to the wastewater treatment well through the wastewater discharge pipe for treatment; A potential energy conversion channel is connected and arranged at the top of the wastewater treatment well. The top of the potential energy conversion channel is connected to the bottom of the wastewater discharge pipe. Multiple groups of potential energy conversion components are symmetrically arranged on both sides of the potential energy conversion channel. The potential energy conversion components convert the gravitational potential energy of the falling wastewater in the potential energy conversion channel into rotational kinetic energy, and then transmit it for subsequent use as kinetic energy for wastewater treatment; The self-cleaning filter assembly is arranged inside the wastewater treatment well at the lower side of the potential energy conversion channel, and is used to perform multi-stage filtration on the wastewater output from the filter screen. At the same time, the self-cleaning filter assembly is rotatably connected to the potential energy conversion assembly. The self-cleaning filter assembly is driven by the potential energy conversion assembly to automatically clean the filter residue impurities left after filtration, so as to keep the filter structure clean in real time; The sedimentation tank is arranged at the bottom of the wastewater treatment well below the self-cleaning filter assembly, and is used for static solid-liquid separation of the filtered wastewater. A liquid discharge port for discharging the separated wastewater is opened outward on one side of the top of the sedimentation tank, and a reflux assembly is arranged outward on the upper part of the other side. The output end of the top of the reflux assembly extends to the pig breeding area, that is, the treated wastewater is transferred to the pig breeding area again through the reflux assembly, and is used for cleaning the pig breeding area or cooling it when it is hot. The reflux assembly includes an auxiliary recovery pump, which is connected to the potential energy conversion assembly, and is used to assist the liquid in the sedimentation tank to flow back to the pig breeding area; The solid air-drying component is rotatably arranged directly below the sedimentation tank. One side of the bottom is rotatably connected to the potential energy conversion component through a rotating connector. The solids after solid-liquid separation in the sedimentation tank are output downward, and the diversion is transferred to the solid air-drying component for rotation. At the same time, a porous air-drying device is arranged on the upper side of the solid air-drying component. The porous air-drying device dries the solids in the rotating solid air-drying component to make it solidify, so as to facilitate its output and subsequent processing. The driving end of the porous air-drying device is rotatably connected to the rotating connector, that is, the potential energy conversion component drives the rotating connector and drives the porous air-drying device and the solid air-drying component to operate simultaneously, so as to air-dry the separated solids.

[0006] A wastewater treatment method for pig farming, the specific steps are as follows: Step 1: Open the control valve on the wastewater discharge pipe, and filter the wastewater generated in the pig breeding area through the coarse filter between the pig breeding area and the wastewater discharge pipe, and then transfer it to the water collection channel along the wastewater discharge pipe. At this time, through the gathering of the water collection channel, the wastewater is concentrated and quickly falls along the potential energy conversion channel. When the falling wastewater passes through the impeller, it drives the impeller to rotate. At this time, the transmission chain and the transmission belt III are cooperated to convert the gravity potential energy of the falling wastewater into kinetic energy, and it is transmitted outward through the transmission belt III; Step 2: The wastewater falling through the potential energy conversion channel is diffused by the diffusion discharge port, and then evenly sprayed on the filter net, and then multi-stage filtered by the multi-layer filter net. The treated wastewater is transferred to the sedimentation tank for collection and static sedimentation under the action of gravity. After a certain amount of wastewater is stored in the sedimentation tank, the control valve on the wastewater discharge pipeline is closed. At this time, the sedimentation tank is kept static for solid-liquid separation. After the solid and liquid are separated, part of the liquid is discharged through the liquid discharge port, and part of the liquid is transferred to the output pipe under the transmission of the liquid recovery filter tube, and then refluxed to the pig breeding area through the reflux pipe for reuse; Step 3: When the filter screen filters the waste liquid, the screw Ⅱ is driven to rotate through the rotation connection of the transmission belt Ⅲ, the transmission shaft Ⅱ, and the transmission belt Ⅱ, and then the nut Ⅱ is controlled to move back and forth along the screw Ⅱ, thereby driving the right-angle triangle push block to clean the surface of the filter screen and transfer the impurities remaining in the filtration to the internal storage of the filter residue collection box; Step 4: When the liquid recovery filter tube absorbs the liquid, the piston plate is driven to move up and down inside the piston chamber under the action of the rotating connector, thereby controlling the suction force inside the output pipe, and then cooperating with the pump body to return the liquid along the reflux pipe for use; Step 5: After the upper liquid treatment in the sedimentation tank is completed, the solid output port is opened, and the solid falls into the V-shaped groove of the diverter flow channel, and then the solid air drying disk is driven to rotate under the rotation of the connecting shaft, and the hot air blower is driven to operate by the meshing of the bevel gear II and the bevel gear I, so as to air-dry the solid sludge on the rotating V-shaped groove through the air outlet pipe; Step 6: After the solid and liquid treatment in the sedimentation tank is completed, the wastewater discharge pipe is opened and the wastewater is transported toward the inside of the wastewater discharge pipe again for a new round of treatment.

[0007] Compared with the prior art, the beneficial effects of the present invention are: by controlling the wastewater in the pig breeding area to be input into the wastewater discharge pipe, and then using gravity to automatically control the fall of the wastewater, and then passing it through the filter screen for multi-stage filtration, placing it in the sedimentation tank for static solid-liquid separation, and then discharging the liquid, and the solid falls for air drying, thereby realizing the automatic and rapid treatment of pig breeding wastewater; By utilizing the gravitational potential energy generated by the falling wastewater and converting it into kinetic energy, the kinetic energy is used to drive the right-angled triangle push block to automatically clean the surface of the filter net, drive the wastewater after solid-liquid separation to cooperate with the pump body to reflux and transfer it to the pig breeding area for reuse, and drive the solid drying disk to rotate and the hot air blower to operate to air-dry the solids, thereby achieving full conversion and utilization of the potential energy, greatly reducing the energy consumption in wastewater treatment, and to a certain extent improving the efficiency of the operation of the device and reducing processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The present invention is a schematic diagram of the structure of a wastewater treatment device used in pig farming.

[0009] Figure 2 It is a schematic diagram of the partial three-dimensional structure of a wastewater treatment device used in pig farming.

[0010] Figure 3 The present invention is a schematic diagram of the structure of a circulating drive component in a wastewater treatment device used in pig farming.

[0011] Figure 4 The present invention is a schematic diagram of the structure of a push plate in a wastewater treatment device used in pig farming.

[0012] Figure 5 The present invention is a schematic diagram of the structure of a solid air drying plate in a wastewater treatment device used in pig farming.

[0013] Figure 6 The present invention is a schematic diagram of the structure of a piston chamber in a wastewater treatment device used in pig farming.

[0014] Figure 7 for Figure 1 Schematic diagram of the enlarged structure of A.

[0015] Figure 8 for Figure 6 Schematic diagram of the enlarged structure of B.

[0016] Fig. 9 for Figure 1 Schematic diagram of the enlarged structure of C in the figure.

[0017] Fig.10 for Figure 2 Schematic diagram of the enlarged structure of D in the figure.

[0018] Fig.11 for Figure 1 Schematic diagram of the enlarged structure of E; Among them: pig breeding area 10, wastewater discharge pipeline 11, water collection channel 12, wastewater treatment well 13, filter screen 14, potential energy conversion channel 15, impeller 16, diffusion discharge port 17, sedimentation tank 18, solid output port 19, liquid discharge port 20, solid air drying plate 21, V-shaped groove 22, flow divider 23, base 24, rotating column 25, transmission belt I 26, connecting shaft 27, air outlet 28, hot air blower 29, transmission pipe 30, bevel gear I 31, bevel gear II 32, impeller shaft 34, transmission chain 35, transmission shaft II 36, transmission belt II 37, screw II 38, nut II 39, bevel gear V 40, bevel gear VI 41, Z-type connecting rod 42, push plate 43, base plate 44, right-angle triangle push block 45, buffer rod 46, spring 47, limit block 48, swing sealing plate 49, torsion spring 50, filter residue collection box 51, liquid recovery filter tube 52, output pipe 53, piston chamber 54, piston plate 55, L-type connecting rod 56, nut 57, screw 58, bevel gear III 59, bevel gear IV 60, reflux pipe 61, pump body 62, opening and closing port 64, elastic sealing plate 65, transmission belt III 66. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0023] See also Figure 1-Figure 2 A wastewater treatment device for pig farming includes a wastewater treatment well 13 opened underground, the top of the wastewater treatment well 13 is connected to the discharge point of the pig farming area 10 through a wastewater discharge pipe 11, and the wastewater generated during pig farming in the pig farming area 10 is directly transferred to the wastewater treatment well 13 through the wastewater discharge pipe 11 for treatment; The potential energy conversion channel 15 is connected to the top of the wastewater treatment well 13. The top of the potential energy conversion channel 15 is connected to the bottom of the wastewater discharge pipe 11. A plurality of potential energy conversion components are symmetrically arranged on both sides of the potential energy conversion channel 15. The potential energy conversion components convert the gravitational potential energy of the falling wastewater in the potential energy conversion channel 15 into rotational kinetic energy, which is then transferred for subsequent use as kinetic energy for wastewater treatment. The self-cleaning filter assembly is arranged inside the wastewater treatment well 13 at the lower side of the potential energy conversion channel 15, and is used to perform multi-stage filtration on the wastewater output from the filter screen 14. At the same time, the self-cleaning filter assembly is rotatably connected to the potential energy conversion assembly. The self-cleaning filter assembly is driven by the potential energy conversion assembly to automatically clean the filter residue impurities left after filtration, thereby keeping the filter structure clean in real time; The sedimentation tank 18 is arranged at the bottom of the wastewater treatment well 13 below the self-cleaning filter assembly, and is used for static solid-liquid separation of the filtered wastewater. A liquid discharge port 20 for discharging the separated wastewater is opened outwardly on one side of the top of the sedimentation tank 18, and a reflux assembly is arranged outwardly on the upper part of the other side. The top output end of the reflux assembly extends to the pig breeding area 10, that is, the treated wastewater is transferred to the pig breeding area 10 again through the reflux assembly, and is used for cleaning the pig breeding area 10 or cooling it down when it is hot. The reflux assembly includes an auxiliary recovery pump, which is connected to the potential energy conversion assembly, and is used to assist the liquid in the sedimentation tank 18 to flow back to the pig breeding area 10; The solid air-drying component is rotatably arranged directly below the sedimentation tank 18, and one side of the bottom is rotatably connected to the potential energy conversion component through a rotating connector. The solids after solid-liquid separation in the sedimentation tank 18 are output downward, and the diversion is transferred to the solid air-drying component for rotation. At the same time, a porous air-drying device is provided on the upper side of the solid air-drying component. The porous air-drying device air-dries the solids in the rotating solid air-drying component to solidify them, so as to facilitate their output and subsequent processing. The driving end of the porous air-drying device is rotatably connected to the rotating connector, that is, the potential energy conversion component drives the rotating connector and drives the porous air-drying device and the solid air-drying component to run simultaneously, so as to air-dry the separated solids; Among them, the wastewater in the pig breeding area 10 is transmitted to the wastewater treatment well 13 through the wastewater discharge pipe 11, and the gravitational potential energy of the wastewater when falling is first converted into kinetic energy through the potential energy conversion channel 15. Then, when filtering the wastewater, the converted kinetic energy is used to automatically clean and discharge the impurities remaining in the filtration, and the liquid after static solid-liquid separation is assisted to flow back to the pig breeding area 10. Then, with the help of the converted kinetic energy, the separated solids are rotated and moved again, and the porous air-drying device is driven to start air-drying the rotating solids, so as to realize the automatic treatment of the wastewater generated by pig breeding. At the same time, with the help of the design of the wastewater discharge pipe 11, the gravitational potential energy of the fall is converted into kinetic energy, thereby driving the entire device to operate automatically, fully reducing the energy consumption during the operation of the device, and to a certain extent, greatly reducing the operating cost.

[0024] In the embodiment of the present invention, a coarse filter is provided at the connection between the discharge point of the pig breeding area 10 and the wastewater discharge pipe 11, which is used to perform a primary filtration on some large particle impurities, that is, to prevent them from entering the wastewater discharge pipe 11, and to prevent the pipe from being blocked during subsequent treatment. At the same time, a control valve is provided on the wastewater discharge pipe 11, which is used to control the flow of wastewater, that is, to provide a controllable function for the subsequent treatment of wastewater in the wastewater treatment well 13; A group of funnel-shaped water collection channels 12 are provided at the connection point between the top of the wastewater treatment well 13 and the bottom of the wastewater discharge pipe 11, that is, the wastewater transmitted in the wastewater discharge pipe 11 is concentrated and dropped from the top of the wastewater treatment well 13 through the water collection channels 12, ensuring that the wastewater has sufficient gravitational potential energy when it initially falls from the top of the wastewater treatment well 13; The bottom end of the potential energy conversion channel 15 is connected to a diffusion discharge port 17, that is, the wastewater falling in the potential energy conversion channel 15 is fully diffused to the self-cleaning component through the diffusion discharge port 17 and is evenly filtered. At the same time, the bottom end of the sedimentation tank 18 is connected to a solid output port 19, and a control valve is provided on the solid output port 19, that is, the solid after static solid-liquid separation can be output through the control valve.

[0025] In one embodiment of the present invention, in order to prevent the wastewater flowing back into the pig breeding area 10 from causing harm to the pigs, it needs to be disinfected and sterilized before use. Since the wastewater itself comes from the inside of the pig breeding area 10, it can be fully suitable for secondary use after being sterilized and disinfected. It should be noted that the wastewater refluxed in the reflux component only accounts for a small part of the liquid after the solid-liquid separation in the sedimentation tank 18, and most of the liquid is discharged through the liquid discharge port 20. Because according to the law of conservation of energy, the kinetic energy for driving the liquid reflux comes from the potential energy conversion when the waste liquid falls in the potential energy conversion channel 15. Since the kinetic energy of potential energy conversion is used in more ways than this, as well as the loss during the transmission, the height for driving the wastewater in the reflux component to reflux upward to the pig breeding area 10 is greater, and the kinetic energy required is also greater. Therefore, a pump body 62 is also provided on the reflux component. The pump body 62 cooperates with the kinetic energy drive to reduce the pump suction of the reflux using the pump body 62 alone.

[0026] As a preferred embodiment of the present invention, refer to Figure 1 , Figure 2 , Fig.10 The potential energy conversion component includes longitudinally distributed impeller grooves opened on both side walls of the potential energy conversion channel 15. An impeller 16 is rotatably arranged inside each impeller groove through an impeller shaft 34. The impeller shafts 34 between the longitudinal impellers 16 on the same side are rotatably connected through a transmission chain 35. The impeller 16 located on the inner side of the potential energy conversion channel 15 extends to the middle of the potential energy conversion channel 15. When the wastewater in the potential energy conversion channel 15 flows downward, pressure is generated on the impeller 16, thereby driving it to rotate and generate kinetic energy. The impeller shafts 34 on the impellers 16 on both sides of the lower part extend outwardly through a transmission belt III 66 to the outside of the wastewater discharge pipe 11, wherein the transmission belts III 66 on both sides are rotatably connected outwardly with the rotating connector and the self-cleaning component respectively; Specifically, the movable connection between the transmission belt III 66 and the wastewater discharge pipe 11 is provided with a sealing structure inside and outside to prevent leakage of liquid inside the wastewater discharge pipe 11 .

[0027] As a preferred embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7The self-cleaning component includes a filter screen 14 arranged in parallel inside the wastewater discharge pipe 11, a push plate 43 is arranged on the upper surface of the filter screen 14 in a transversely movable manner, and a circulation drive member is connected to one side of the push plate 43. The outer end of the circulation drive member extends to the outside of the wastewater discharge pipe 11 and is connected to a transmission shaft Ⅱ36 through a transmission belt Ⅱ37 to rotate upward, and one side of the transmission shaft Ⅱ36 is rotatably connected to the transmission belt Ⅲ66. The circulation drive member includes a screw Ⅱ38 rotatably arranged on the upper side of the filter screen 14 and distributed laterally. A nut Ⅱ39 is threadedly connected to the screw Ⅱ38, and a guide device for limiting its rotation is arranged on the nut Ⅱ39. An impurity output port is opened at one end of the screw Ⅱ38 away from the transmission belt Ⅱ37, and the outer side of the impurity output port is connected to a filter residue collection box 51 installed on the outer wall of the wastewater discharge pipe 11, and a group of swing sealing plates are elastically arranged at the impurity output port. 49, one side of the outer side of the swing sealing plate 49 is elastically connected to the inner bottom wall of the filter residue collection box 51 through a torsion spring 50. When the torsion spring 50 is in a free state, the swing sealing plate 49 is controlled to be in a vertical state, that is, the filter residue collection box 51 and the upper side of the filter screen 14 are kept sealed. The bottom of the nut II 39 is fixedly connected to the push plate 43 through a Z-type connecting rod 42, that is, when the screw II 38 rotates, the nut II 39 is controlled to move back and forth along the screw II 38, thereby driving the push plate 43 to move back and forth on the upper surface of the filter screen 14. When the push plate 43 moves, a thrust is applied to the swing sealing plate 49, and the swing sealing plate 49 is swung and tilted at this time, and then the impurities on the filter screen 14 are transferred to the filter residue collection box 51 under the push of the push plate 43. When the push plate 43 contacts the swing sealing plate 49, the push plate 43 will not pass over the swing sealing plate 49, that is, it is prevented from being unable to return; At the same time, in order to keep the push plate 43 moving back and forth along the upper surface of the filter screen 14, when moving back, it will not drive the impurities to move away from the filter residue collection box 51, the push plate 43 includes a vertical base plate 44, one side of the base plate 44 is fixedly connected to the Z-shaped connecting rod 42, and a buffer cavity is provided at the bottom of the base plate 44. A limit block 48 is provided inside the buffer cavity in a lifting manner. The top of the limit block 48 is connected to the top of the buffer cavity through a spring 47, and a buffer rod 46 is connected to the bottom of the limit block 48. A right-angled triangular push block 45 is installed at the bottom of the buffer rod 46. When the circulating drive member drives the base plate 44 to move toward the filter residue collection box 51, the bottom tip of the right-angled triangular push block 45 contacts the upper surface of the filter screen 14, at this time, the impurities are pushed forward. When moving back, the inclined surface of the right-angled triangular push block 45 contacts the impurities. At this time, the elastic effect of the spring 47 can be used to keep the right-angled triangular push block 45 rising upward, preventing the right-angled triangular push block 45 from pushing the impurities back. It should be noted that the end of the lead screw II 38 facing the impurity outlet is fixed to the inner wall of the filter screen 14 through a rotating support, and the length of the lead screw II 38 is shortened by the lateral extension of the Z-shaped connecting rod 42, so as to ensure that when the nut II 39 does not move to the impurity outlet, the push plate 43 pushes the impurities into the filter residue collection box 51 in advance; The other end of the lead screw II 38 is connected to a bevel gear VI 41 placed outside the wastewater discharge pipe 11, one side of the bevel gear VI 41 is meshed with a bevel gear V40, and one side of the bevel gear V40 is installed with a guide rod, which is rotatably connected to the guide rod on the upper transmission shaft II 36 and the lower bevel gear V40 through a transmission belt II 37, thereby utilizing the rotation of the impeller 16 to drive the right-angle triangular push block 45 to automatically clean the upper surface of the filter screen 14.

[0028] As a preferred embodiment of the present invention, refer to Figure 1 , Figure 6 , Figure 8 , Fig. 9 The reflux assembly includes a liquid recovery filter tube 52 arranged above the inside of the sedimentation tank 18, one end of the liquid recovery filter tube 52 is connected to an output pipe 53 extending to the outside of the wastewater discharge pipe 11, and the end of the output pipe 53 is connected to an auxiliary recovery pump, and the auxiliary recovery pump includes a group of piston chambers 54, a piston plate 55 is arranged in a lifting manner inside the piston chamber 54, an L-shaped connecting rod 56 is connected to the middle of the top of the piston plate 55, and the end of the L-shaped connecting rod 56 is fixed to a rotating connecting member, and the rotating connecting member controls the piston plate 55 to circulate and rise and fall inside the piston chamber 54, and at the same time, openings and closing ports 64 are respectively opened at the bottom and side wall of the piston chamber 54, the bottom opening and closing port 64 is connected to the output pipe 53, and the side wall opening and closing port 64 is connected to the reflux pipe 61 outwardly. The top of the reflux pipe 61 extends to the pig breeding area 10, and a pump body 62 is provided on the reflux pipe 61. A group of elastic sealing plates 65 are provided on the upper side of the bottom opening and closing opening 64 to swing inwards and the inside of the side wall opening and closing opening 64 to swing outwards, that is, when the piston plate 55 rises, the bottom elastic sealing plate 65 swings inwards to control the opening and closing opening 64 to open, and then the liquid in the output pipe 53 is sucked into the piston cavity 54. When the piston plate 55 descends, the side wall elastic sealing plate 65 swings outwards to press the liquid in the piston cavity 54 into the reflux pipe 61, and then cooperates with the pumping of the pump body 62 to return the liquid in the sedimentation tank 18 to the pig breeding area 10, thereby realizing the auxiliary pumping effect of the pump body 62; The rotating connecting member includes a nut 57 fixedly connected to the end of the L-shaped connecting rod 56, a vertical lead screw 58 is threadedly connected to the middle part of the nut 57, a bevel gear III 59 is installed on the top of the lead screw 58, a bevel gear IV 60 is vertically meshed with one side of the bevel gear III 59, a connecting rod is installed on one side of the bevel gear IV 60, the connecting rod is rotatably connected to the transmission belt III 66, and a guide device for limiting its rotation is provided on the nut 57, so as to control the nut 57 to move up and down along the lead screw 58, thereby driving the piston plate 55 to cyclically rise and fall.

[0029] As a preferred embodiment of the present invention, refer to Figure 1 , Figure 5 , Fig.11The solid air-drying assembly includes a group of solid air-drying disks 21 placed just below the solid output port 19. A plurality of V-shaped grooves 22 are evenly distributed in an annular manner on the top of the solid air-drying disk 21. A rotating column 25 is connected to the middle of the bottom of the solid air-drying disk 21. A base 24 is rotatably installed at the bottom of the rotating column 25. One side of the rotating column 25 is rotatably connected to a connecting shaft 27 through a transmission belt Ⅰ26. The top of the connecting shaft 27 is fixed to the bottom of the lead screw 58, that is, when the lead screw 58 rotates, the connecting shaft 27 is synchronously driven to rotate, and then the solid air-drying disk 21 is driven to rotate under the rotation of the transmission belt Ⅰ26. At the same time, a group of diverter fluids 23 with a conical structure are arranged in the middle of the bottom of the solid air-drying disk 21. The diverter fluids 23 are placed just below the solid output port 19. The solids falling from the solid output port 19 are diverted into the V-shaped groove 22 through the diverter 23, and the porous air-drying device includes an air outlet pipe 28 of a cross-shaped structure installed at the bottom of the wastewater discharge pipe 11. The top side of the air outlet pipe 28 is connected to a hot air blower 29 through a transmission pipe 30. The driving shaft of the hot air blower 29 is connected to a bevel gear I 31, and one side of the bevel gear I 31 is vertically meshed with a bevel gear II 32 installed on the connecting shaft 27, that is, when the connecting shaft 27 rotates, the bevel gear II 32 is driven to rotate, and then the bevel gear I 31 is driven to control the hot air blower 29 to rotate and operate, and then the hot air blower 29 generates hot air when it operates, which is transmitted to the air outlet pipe 28 through the transmission pipe 30, and then the solids on the rotating V-shaped groove 22 are air-dried; Among them, for the hot air blower 29, the heater or the warm air blower is a device for heating air. It is usually used in industrial, commercial and domestic environments to provide a warm and comfortable environment. The working principle of the hot air blower is to generate heat through a heating element (such as a resistance wire, a gas burner or an oil burner), and then blow the hot air to the space that needs to be heated through a fan, where the bevel gear I 31 is driven to rotate, thereby driving the drive shaft of the hot air blower 29 to rotate, thereby driving the heating element to operate and generate heat.

[0030] The above embodiment of the present invention provides a wastewater treatment device for pig farming, and based on the wastewater treatment device for pig farming, provides a wastewater treatment method for pig farming, and the specific steps are as follows: Step 1: Open the control valve on the wastewater discharge pipe 11, and filter the wastewater generated by the pig breeding area 10 through the coarse filter screen between the pig breeding area 10 and the wastewater discharge pipe 11, and then transfer it to the water collection channel 12 along the wastewater discharge pipe 11. At this time, the wastewater is concentrated and quickly falls along the potential energy conversion channel 15 through the gathering of the water collection channel 12. When the falling wastewater passes through the impeller 16, it drives the impeller 16 to rotate. At this time, the transmission chain 35 and the transmission belt III 66 are cooperated to convert the gravity potential energy of the falling wastewater into kinetic energy, and transmit it to the outside through the transmission belt III 66; Step 2: The wastewater falling through the potential energy conversion channel 15 is diffused by the diffusion discharge port 17, and then evenly sprayed on the filter screen 14, and then subjected to multi-stage filtration treatment by the multi-layer filter screen 14. The treated wastewater is transferred to the sedimentation tank 18 for collection and static sedimentation under the action of gravity. After a certain amount of wastewater is stored in the sedimentation tank 18, the control valve on the wastewater discharge pipe 11 is closed, and the sedimentation tank 18 is kept static for solid-liquid separation. After the solid and liquid are separated, part of the liquid is discharged through the liquid discharge port 20, and part of the liquid is transferred to the output pipe 53 under the transmission of the liquid recovery filter tube 52, and then refluxed to the pig breeding area 10 through the reflux pipe 61 for reuse; Step 3: When the filter screen 14 filters the waste liquid, the screw Ⅱ38 is driven to rotate through the rotation connection of the transmission belt Ⅲ66, the transmission shaft Ⅱ36, and the transmission belt Ⅱ37, and then the nut Ⅱ39 is controlled to move back and forth along the screw Ⅱ38, thereby driving the right-angle triangle push block 45 to clean the upper surface of the filter screen 14, and transfer the impurities remaining after filtering to the internal storage of the filter residue collection box 51; Step 4, when the liquid recovery filter tube 52 absorbs the liquid, the piston plate 55 is driven to move up and down inside the piston chamber 54 under the action of the rotating connector, thereby controlling the suction force inside the output pipe 53, and then cooperating with the pump body 62 to return the liquid along the reflux pipe 61 for use; Step 5, after the upper liquid treatment in the sedimentation tank 18 is completed, the solid output port 19 is opened, and the solid falls into the V-shaped groove 22 of the flow divider 23, and then the solid air drying plate 21 is driven to rotate under the rotation of the connecting shaft 27, and the hot air blower 29 is driven to operate by the meshing of the bevel gear II 32 and the bevel gear I 31, so that the solid sludge on the rotating V-shaped groove 22 is air-dried through the air outlet pipe 28; Step 6, after the solid and liquid treatment in the sedimentation tank 18 is completed, the wastewater discharge pipe 11 is opened, and the wastewater is transported toward the inside of the wastewater discharge pipe 11 again for a new round of treatment.

[0031] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A wastewater treatment device for pig farming, characterized in that: It comprises a wastewater treatment well (13) opened underground, the top of the wastewater treatment well (13) being connected to the discharge point of the pig breeding area (10) through a wastewater discharge pipe (11); A potential energy conversion channel (15) is arranged in communication with the top of the wastewater treatment well (13); the top of the potential energy conversion channel (15) is connected to the bottom of the wastewater discharge pipe (11); and a plurality of groups of potential energy conversion components are symmetrically arranged on both sides of the potential energy conversion channel (15); a self-cleaning filter assembly, arranged inside the wastewater treatment well (13) below the potential energy conversion channel (15), and used for performing multi-stage filtration on wastewater output from the filter screen (14); the self-cleaning filter assembly is rotatably connected to the potential energy conversion assembly; A sedimentation tank (18) is arranged at the bottom of the wastewater treatment well (13) below the self-cleaning filter assembly. A liquid discharge port (20) for discharging separated wastewater is provided on one side of the top of the sedimentation tank (18). A reflux assembly is provided on the other upper side. The top output end of the reflux assembly extends to the pig breeding area (10). The reflux assembly includes an auxiliary recovery pump connected to the potential energy conversion assembly and used to assist the liquid in the sedimentation tank (18) to flow back to the pig breeding area (10). A solid air-drying component is rotatably arranged directly below the sedimentation tank (18), and one side of the bottom is rotatably connected to the potential energy conversion component via a rotatable connecting piece. The solids after solid-liquid separation in the sedimentation tank (18) are output downwardly, and the diversion is transferred to the solid air-drying component for rotation. A porous air-drying device is arranged on the upper side of the solid air-drying component, and the porous air-drying device dries the solids in the rotating solid air-drying component. The driving end of the porous air-drying device is rotatably connected to the rotatable connecting piece.

2. A wastewater treatment device for pig farming according to claim 1, characterized in that: A coarse filter is provided at the connection point between the discharge point of the pig breeding area (10) and the wastewater discharge pipeline (11), and a control valve is provided on the wastewater discharge pipeline (11).

3. A wastewater treatment device for pig farming according to claim 2, characterized in that: A group of water collection channels (12) with a funnel-shaped structure are provided at the connection point between the top end of the wastewater treatment well (13) and the bottom end of the wastewater discharge pipe (11).

4. A wastewater treatment device for pig farming according to claim 3, characterized in that: The self-cleaning component comprises a filter screen (14) arranged in parallel and distributed inside the wastewater discharge pipe (11); a push plate (43) is arranged on the upper surface of the filter screen (14) in a transversely movable manner; one side of the push plate (43) is connected to a circulating drive member; an outer end of the circulating drive member extends to the outside of the wastewater discharge pipe (11) and is rotatably connected to a transmission shaft II (36) via a transmission belt II (37); one side of the transmission shaft II (36) is rotatably connected to a transmission belt III (66); the circulating drive member comprises a lead screw II (38) rotatably arranged on the upper side of the filter screen (14) and distributed in a transverse manner; a nut II (39) is threadedly connected to the lead screw II (38); the nut II (39) is provided with a guide device for limiting its rotation, an impurity outlet is provided at one end of the lead screw II (38) away from the transmission belt II (37), the outer side of the impurity outlet is connected to a filter residue collection box (51) installed on the outer wall of the wastewater discharge pipe (11), a group of swing sealing plates (49) are elastically provided at the impurity outlet, one side of the outer side of the swing sealing plate (49) is elastically connected to the inner bottom wall of the filter residue collection box (51) through a torsion spring (50), when the torsion spring (50) is in a free state, the swing sealing plate (49) is controlled to be in a vertical state, and the bottom of the nut II (39) is fixedly connected to the push plate (43) through a Z-shaped connecting rod (42); The push plate (43) comprises a vertical base plate (44), one side of the base plate (44) is fixedly connected to the Z-shaped connecting rod (42), a buffer cavity is provided at the bottom of the base plate (44), a limit block (48) is provided in a lifting manner inside the buffer cavity, the top of the limit block (48) is connected to the top of the buffer cavity through a spring (47), the bottom of the limit block (48) is connected to a buffer rod (46), and a right-angle triangular push block (45) is installed at the bottom of the buffer rod (46).

5. A wastewater treatment device for pig farming according to claim 4, characterized in that: The other end of the lead screw II (38) is connected to a bevel gear VI (41) disposed outside the wastewater discharge pipe (11); one side of the bevel gear VI (41) is meshed with a bevel gear V (40); one side of the bevel gear V (40) is provided with a guide rod; the guide rod is rotatably connected to the guide rod on the upper transmission shaft II (36) and the lower bevel gear V (40) via a transmission belt II (37).

6. A wastewater treatment device for pig farming according to claim 5, characterized in that: The reflux assembly comprises a liquid recovery filter tube (52) arranged above the interior of the sedimentation tank (18); one end of the liquid recovery filter tube (52) is connected to an output tube (53) extending to the outside of the wastewater discharge pipe (11); the end of the output tube (53) is connected to an auxiliary recovery pump; the auxiliary recovery pump comprises a group of piston chambers (54); a piston plate (55) is arranged in a lifting manner inside the piston chamber (54); an L-shaped connecting rod (56) is connected to the middle of the top of the piston plate (55); the end of the L-shaped connecting rod (56) is fixed to a rotating connecting piece; the rotating connecting piece The piston plate (55) is controlled to circulate and rise and fall inside the piston chamber (54). The bottom and side walls of the piston chamber (54) are respectively provided with openings (64). The bottom opening (64) is connected to the output pipe (53). The side wall opening (64) is externally connected to a return pipe (61). The top of the return pipe (61) extends to the pig breeding area (10). A pump body (62) is provided on the return pipe (61). A group of elastic sealing plates (65) are provided on the upper side of the bottom opening (64) to swing inwards and inside the side wall opening (64) to swing outwards.

7. A wastewater treatment device for pig farming according to claim 6, characterized in that: The rotating connecting member comprises a nut (57) fixedly connected to the end of the L-shaped connecting rod (56); a vertical lead screw (58) is threadedly connected to the middle of the nut (57); a bevel gear III (59) is mounted on the top of the lead screw (58); a bevel gear IV (60) is vertically meshed with one side of the bevel gear III (59); a connecting rod is mounted on one side of the bevel gear IV (60); the connecting rod is rotatably connected to the transmission belt III (66); and a guide device for limiting the self-rotation of the nut (57) is provided on the nut (57).

8. A wastewater treatment device for pig farming according to claim 7, characterized in that: The solid air-drying component comprises a group of solid air-drying disks (21) disposed directly below the solid output port (19), a plurality of V-shaped grooves (22) evenly distributed in an annular manner are formed on the top of the solid air-drying disk (21), a rotating column (25) is connected to the middle of the bottom of the solid air-drying disk (21), a base (24) is rotatably mounted on the bottom of the rotating column (25), one side of the rotating column (25) is rotatably connected to a connecting shaft (27) via a transmission belt I (26), the top end of the connecting shaft (27) is fixed to the bottom end of a lead screw (58), a group of diverter bodies (23) with a conical structure are disposed in the middle of the bottom of the solid air-drying disk (21), and the diverter bodies (23) are disposed directly below the solid output port (19).

9. A wastewater treatment device for pig farming according to claim 8, characterized in that: The porous air drying device comprises an air outlet pipe (28) of a cross-shaped structure installed at the bottom of the wastewater discharge pipe (11); one side of the top of the air outlet pipe (28) is connected to a hot air blower (29) through a transmission pipe (30); a driving shaft of the hot air blower (29) is connected to a bevel gear I (31); one side of the bevel gear I (31) is vertically meshed with a bevel gear II (32) installed on the connecting shaft (27).

10. The method for treating wastewater from pig farming according to claim 9, characterized in that: The following steps are involved: Step 1: Open the control valve on the wastewater discharge pipe (11), and filter the wastewater generated in the pig breeding area (10) through the coarse filter screen between the pig breeding area (10) and the wastewater discharge pipe (11), and then transfer it to the water collection channel (12) along the wastewater discharge pipe (11). At this time, the wastewater is concentrated and quickly falls along the potential energy conversion channel (15) through the gathering of the water collection channel (12). When the falling wastewater passes through the impeller (16), it drives the impeller (16) to rotate. At this time, the transmission chain (35) and the transmission belt III (66) are cooperated to convert the gravity potential energy of the falling wastewater into kinetic energy, and transmit it to the outside through the transmission belt III (66); Step 2: The wastewater falling through the potential energy conversion channel (15) is diffused by the diffusion discharge port (17), and then evenly sprayed on the filter screen (14), and then subjected to multi-stage filtration treatment by the multi-layer filter screen (14). The treated wastewater is transferred to the sedimentation tank (18) for collection and static sedimentation under the action of gravity. After a certain amount of wastewater is stored in the sedimentation tank (18), the control valve on the wastewater discharge pipe (11) is closed. At this time, the sedimentation tank (18) is kept static for solid-liquid separation. After the solid and liquid are separated, part of the liquid is discharged through the liquid discharge port (20), and part of the liquid is transferred to the output pipe (53) under the transmission of the liquid recovery filter pipe (52), and then refluxed to the pig breeding area (10) through the reflux pipe (61) for reuse; Step 3: When the filter screen (14) filters the waste liquid, the screw (38) is driven to rotate through the rotation connection of the transmission belt III (66), the transmission shaft II (36), and the transmission belt II (37), and then the nut II (39) is controlled to move back and forth along the screw (38), thereby driving the right-angle triangle push block (45) to clean the upper surface of the filter screen (14), and transferring the impurities remaining after filtering to the filter residue collection box (51) for storage; Step 4: When the liquid recovery filter tube (52) absorbs the liquid, the piston plate (55) is driven to move up and down inside the piston chamber (54) under the action of the rotating connecting piece, thereby controlling the suction force inside the output pipe (53), and then cooperating with the pump body (62) to return the liquid along the return pipe (61) for use; Step 5: After the upper liquid treatment in the sedimentation tank (18) is completed, the solid output port (19) is opened, and the solid falls into the V-shaped groove (22) of the flow channel of the flow divider (23), and then the solid air drying disk (21) is driven to rotate under the rotation of the connecting shaft (27), and the hot air blower (29) is driven to operate by the meshing of the bevel gear II (32) and the bevel gear I (31), so that the solid sludge on the rotating V-shaped groove (22) is air-dried through the air outlet pipe (28); Step 6: After the solid and liquid treatment in the sedimentation tank (18) is completed, the wastewater discharge pipe (11) is opened and the wastewater is transported toward the inside of the wastewater discharge pipe (11) again for a new round of treatment.

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