A rapid treatment device for pig farm sewage

Abstract

The invention discloses a pig farm sewage rapid treatment device in the sewage treatment field, comprising a functional tank and a wastewater collection box; a dry-wet separation chamber is arranged in the functional tank, a sealing cover and a filter plate are detachably connected to the top of the dry-wet separation chamber, a sewage inlet pipe is arranged on the sealing cover, and a limited position guide component is arranged between the sealing cover and the filter plate; a plurality of filter ports are arranged on the filter plate; a drain pipe is connected between the functional tank and the wastewater collection box, a negative pressure pump and a stop valve are arranged in the drain pipe, and the stop valve is located at one end of the drain pipe close to the functional tank. This scheme integrates the three steps of grid filtration, wastewater collection, and solid-liquid separation, thereby greatly improving the treatment efficiency of aquaculture sewage.

Description

Technical Field

[0001] The invention belongs to the field of sewage treatment, in particular to a pig farm sewage rapid treatment device. Background Art

[0002] Pig farm wastewater is a high-concentration organic wastewater, mainly composed of pig urine, some pig manure and pig house flushing water, and has the characteristics of large drainage volume, high pollution load, high organic concentration, solid-liquid mixing, etc. This kind of wastewater contains a large amount of suspended solids, organic matter, ammonia nitrogen and other pollutants. If it is discharged directly into natural water bodies without treatment, it will cause serious pollution to the water environment, destroy the ecological balance of the water body, and may spread through aquatic plants and animals, endangering the health of humans and animals.

[0003] In the existing pig farm sewage treatment process, when treating aquaculture sewage (watery feces), it is generally necessary to introduce the sewage into the grate channel, filter and remove larger suspended or floating objects in the sewage to reduce the treatment load of the subsequent sewage treatment process. Then, the filtered wastewater is collected in the wastewater collection pool for solid-liquid separation, the separated solid part is sent to the fermentation tank to make organic fertilizer, and the wastewater part is sent to the anaerobic reaction tank for subsequent treatment until the effluent water quality meets the requirements. However, in the above process, the aquaculture sewage needs to be transferred and transported between different equipment or units, which increases the complexity of the treatment process. At the same time, it will also cause the aquaculture sewage to stay for a long time during the treatment process, affecting the treatment efficiency. Therefore, there is an urgent need for a pig farm sewage rapid treatment device that can reduce the transfer and transportation of aquaculture sewage between multiple treatment units, thereby reducing the complexity of operation and energy consumption and improving treatment efficiency. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a pig farm wastewater rapid treatment device, which can integrate the screen channel, wastewater collection tank and solid-liquid separation unit into an integrated design to ensure that the aquaculture wastewater is stably and evenly treated throughout the entire pretreatment process, thereby improving the treatment efficiency of aquaculture wastewater.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows:

[0006] A pig farm sewage rapid treatment device, comprising a functional tank and a wastewater collection box;

[0007] A dry-wet separation chamber is provided in the functional tank, a sealing cover and a filter plate are detachably connected to the top of the dry-wet separation chamber, a sewage inlet pipe is provided on the sealing cover, and a limited position guide component is provided between the sealing cover and the filter plate; a plurality of filter ports are provided on the filter plate;

[0008] A drainage pipe is connected between the function tank and the wastewater collection box. A negative pressure pump and a stop valve are arranged in the drainage pipe. The stop valve is located at one end of the drainage pipe close to the function tank.

[0009] The above scheme has the following beneficial effects:

[0010] 1. This solution uses the negative pressure generated by the negative pressure pump to drive the aquaculture sewage (watery feces) between the sealing cover and the filter plate to move in the limit guide assembly. When the aquaculture sewage passes through the filter port on the filter plate, some solid feces will pass through the filter port into the dry-wet separation chamber. Through the continuous operation of the negative pressure pump, the air pressure in the dry-wet separation chamber will continue to drop, causing the boiling point of water to decrease, prompting the water in the aquaculture sewage to evaporate under negative pressure, and the water evaporated and boiled in the aquaculture sewage will enter the drain pipe through the stop valve. The water in the aquaculture sewage is eventually stored in the wastewater collection box, leaving the solid feces residue in the dry-wet separation chamber, thereby achieving solid-liquid separation. Compared with the existing technology, this solution integrates the three steps of grid filtration, wastewater collection, and solid-liquid separation, thereby greatly improving the treatment efficiency of aquaculture sewage.

[0011] 2. This solution uses the negative pressure generated by the negative pressure pump to guide the aquaculture sewage to move in the limiting guide component, so that the solid and liquid of the aquaculture sewage are continuously separated during the movement, further improving the solid-liquid separation efficiency.

[0012] Furthermore, the limiting guide assembly includes a plurality of isolation plates; the isolation plates are arranged alternately on the filter plate, and the isolation plates separate the area between the sealing cover and the filter plate into a single channel.

[0013] Beneficial effect: By staggeredly arranging the isolation plates on the filter plates and using the isolation plates to divide them into single channels, it is helpful to guide the aquaculture wastewater to flow between the isolation plates by pressure.

[0014] Furthermore, a plurality of cutting blades are provided on one side of the isolation plate.

[0015] Beneficial effect: By arranging a plurality of cutting blades on one side of the isolation plate, larger solid feces can be split into smaller units, thereby preventing the solid feces from clogging the filter port.

[0016] Furthermore, a plurality of manure slag troughs are arranged at the bottom of the dry-wet separation chamber; the size of the manure slag troughs is inversely proportional to the distance between the manure slag troughs and the drainage pipe.

[0017] Beneficial effects: By setting a number of manure slag troughs at the bottom of the dry-wet separation chamber, it is beneficial to collect solid feces; by designing the size of the manure slag trough to be larger the closer to the drain pipe, it can solve the problem of too much solid feces accumulation near the drain pipe and affecting the normal collection of water by the drain pipe. At the same time, by setting the manure slag troughs, the pressure in the dry-wet separation chamber can better compact the solid feces, save storage space, and facilitate subsequent processing.

[0018] Furthermore, a number of cleaning components are provided on the isolation plate, and each cleaning component corresponds to a cutting blade; the cleaning component includes a movable groove opened in the isolation plate, and the cutting blade slides in cooperation with the movable groove; a spring is provided at the bottom of the movable groove, and the spring is fixedly connected to the back of the cutting blade; a brush is also provided at the groove of the movable groove; a cavity is also provided on one side of the movable groove, and the cavity is connected to the movable groove through a connecting pipe; an elastic cushion layer is provided on the top of the cavity.

[0019] Beneficial effect: When the cutting blade is squeezed, it will move along the inner wall of the movable groove. At the same time, the cutting blade will squeeze the air in the movable groove during the movement, and squeeze the air into the cavity. The elastic cushion layer on the top of the cavity gradually expands, pushing the solid feces attached to the surface of the elastic cushion layer outward, and using the flow of aquaculture sewage to wash it away. At the same time, when the cutting blade is retracted into the movable groove, the cutting blade will rub against the brush, thereby washing the solid feces attached to the surface of the cutting blade to ensure the cutting effect of the cutting blade.

[0020] Furthermore, the connecting pipe includes a main pipe and several arc pipes; the main pipe is used for normal circulation of air between the movable groove and the cavity; the arc pipe is used to change the flow direction of part of the air flowing to the cavity, so that the air in the arc pipe flows in the opposite direction to the air in the main pipe.

[0021] Beneficial effect: When the cutting blade cuts larger solid feces, the cutting effect of the cutting blade on the solid feces increases accordingly. In order to prevent the cutting blade from being quickly pushed back into the movable groove when cutting solid feces, the air flow direction flowing into the cavity is changed by using an arc tube, so that when the cutting blade is squeezed and retracted into the movable groove, the air cannot quickly enter the cavity through the connecting tube, so that the air at the bottom of the movable groove produces resistance to the retraction of the cutting blade, thereby achieving the effect of cutting solid feces. Moreover, when larger solid feces contacts the elastic cushion layer, the air in the cavity will be squeezed back into the movable groove, and the cutting blade will be reset under the joint action of the spring and air, thereby achieving the dynamic effect of the cutting blade cutting back and forth.

[0022] Furthermore, a progress component is also provided on the drain pipe; the progress component includes an air pressure cabin, which is connected to the drain pipe; a piston is provided in the air pressure cabin, and the piston slides in cooperation with the air pressure cabin; a piston handle is provided on the piston, and the piston handle passes through the air pressure cabin and extends outside the air pressure cabin.

[0023] Beneficial effect: As the aquaculture wastewater in the functional tank gradually separates into solid and liquid, the air pressure inside the entire device decreases synchronously. The lower the air pressure in the functional tank, the closer the solid-liquid separation is to the end. The progress of aquaculture wastewater treatment in the functional tank can be judged by the rise and fall of the piston handle. At the same time, the movement of the piston handle can be used to judge whether the negative pressure pump is operating normally, so that adjustment measures can be taken in time to prevent further development of the problem.

[0024] Furthermore, it also includes an early warning module, a power meter and a control module; the early warning module is used to send an early warning signal based on the instructions of the control module; the power meter is used to obtain the power change of the negative pressure pump; the control module is used to judge the blockage of the filter port based on the power change of the negative pressure pump. If the power change of the negative pressure pump exceeds a preset threshold, the filter port is judged to be blocked and an instruction is sent to the early warning module.

[0025] Beneficial effect: By monitoring the power changes of the negative pressure pump, the blockage situation in the functional tank can be judged, and the early warning module can be used to give an alarm in time so that timely response measures can be taken to avoid further development of the blockage problem.

[0026] Furthermore, a flow meter is also provided in the drain pipe; the control module is also used to establish a blockage level warning mechanism based on the flow change in the drain pipe and the power change of the negative pressure pump. If the flow change is less than the first flow threshold and the power change is greater than the first power threshold, the blockage level is judged to be mild; if the flow change is less than the second flow threshold and the power change is greater than the second power threshold, the blockage level is judged to be moderate; if the flow change is less than the third flow threshold and the power change is greater than the third power threshold, the blockage level is judged to be severe.

[0027] Beneficial effect: By establishing different blockage levels, it is helpful for relevant staff to more accurately understand the processing conditions in the functional tank. Clear blockage levels provide clear information to decision makers, enabling them to make decisions faster.

[0028] Furthermore, the warning signal is displayed with different lights according to the congestion level. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a three-dimensional structural schematic diagram of a pig farm wastewater rapid treatment device of the present invention.

[0030] Figure 2 for Figure 1 Top view of the .

[0031] Figure 3 for Figure 2 Cross-section view of AA.

[0032] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure.

[0033] Figure 5 for Figure 1 3D schematic diagram after removal of the cover.

[0034] Figure 6 for Figure 5 3D schematic diagram of the central isolation panel.

[0035] Figure 7 for Figure 6 Front view of .

[0036] Figure 8 for Figure 7 BB cross-section diagram.

[0037] Fig. 9 for Figure 8 Schematic diagram of the internal structure of the middle connecting pipe.

[0038] Fig.10 This is a system block diagram of Example 2 of a rapid wastewater treatment device for pig farms according to the present invention. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it is to be understood that the terms “longitudinal”, “lateral”, “vertical”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0042] The following is further described in detail through specific implementation methods:

[0043] The figure marks in the drawings of the specification include: functional tank 1, wastewater collection box 2, drainage pipe 3, air pressure cabin 4, filter plate 5, feces trough 6, negative pressure pump 7, piston handle 8, sewage inlet pipe 101, sealing cover 102, isolation plate 103, dry-wet separation chamber 104, stop valve 301, filter port 501, cutting blade 1031, movable groove 1032, spring 1033, brush 1034, cavity 1035, connecting pipe 1036, elastic cushion layer 1037, main pipeline 10361, arc pipe 10362.

[0044] The embodiment is basically as shown in the attached Figure 1-Figure 10 As shown:

[0045] A device for rapidly treating wastewater in a pig farm comprises a functional tank 1 and a wastewater collection box 2.

[0046] A dry-wet separation chamber 104 is provided in the function tank 1, and a plurality of manure slag grooves 6 are provided at the bottom of the dry-wet separation chamber 104; the size of the manure slag groove 6 is inversely proportional to the distance between the manure slag groove 6 and the drain pipe 3, that is, the closer to the drain pipe 3, the larger the size of the manure slag groove 6; a sealing cover 102 and a filter plate 5 are detachably connected to the top of the dry-wet separation chamber 104, and the sealing cover 102 is threadedly connected to the function tank 1. Specifically, a platform (not shown in the figure) is provided on the side wall of the dry-wet separation chamber 104, and the filter plate 5 is placed on the platform, and a plurality of filter ports 501 are provided on the filter plate 5. A sewage inlet pipe 101 is welded and fixed on the sealing cover 102. In this embodiment, a valve is provided in the sewage inlet pipe 101, so that after the aquaculture sewage is introduced, the sewage inlet pipe 101 is closed to ensure the sealing inside the function tank 1. A limited position guide component is provided between the sealing cover 102 and the filter plate 5.

[0047] Specifically, the limiting guide assembly includes a plurality of isolation plates 103 ; the isolation plates 103 are arranged in a staggered manner and are welded and fixed on the filter plate 5 , and the isolation plates 103 separate the area between the sealing cover 102 and the filter plate 5 into a single channel.

[0048] A plurality of cutting blades 1031 and a cleaning assembly are disposed on one side of the isolation plate 103 .

[0049] Several cleaning components are also provided on the isolation plate 103, and each cleaning component corresponds to a cutting blade 1031; the cleaning component includes a movable groove 1032 opened in the isolation plate 103, and the cutting blade 1031 slides with the movable groove 1032; a spring 1033 is welded and fixed to the bottom of the movable groove 1032, and the spring 1033 is welded and fixed to the back of the cutting blade 1031; a brush 1034 is also bonded and fixed at the notch of the movable groove 1032; a cavity 1035 is also opened on one side of the movable groove 1032, and the cavity 1035 is connected to the movable groove 1032 through a connecting pipe 1036; an elastic cushion layer 1037 is bonded and fixed to the top of the cavity 1035.

[0050] Specifically, attached Fig. 9 As shown, the connecting pipe 1036 includes a main pipe 10361 and a plurality of arc pipes 10362; the main pipe 10361 is used for normal circulation of air between the movable groove 1032 and the cavity 1035; the arc pipe 10362 is used to change the flow direction of part of the air flowing to the cavity 1035, so that the air in the arc pipe 10362 is contrary to the flow direction of the air in the main pipe 10361.

[0051] A drain pipe 3 is connected between the function tank 1 and the wastewater collection box 2. A negative pressure pump 7 and a stop valve 301 are arranged in the drain pipe 3. The stop valve 301 is located at one end of the drain pipe 3 close to the function tank 1. In this embodiment, the stop valve 301 is a valve that only allows gas and liquid to pass through.

[0052] Specifically, a progress component is also provided on the drain pipe 3; the progress component includes an air pressure cabin 4, which is connected to the drain pipe 3; a piston is provided in the air pressure cabin 4, and the piston is slidably matched with the air pressure cabin 4; a piston handle 8 is welded and fixed on the piston, and the piston handle 8 passes through the air pressure cabin 4 and extends outside the air pressure cabin 4.

[0053] The specific implementation process is as follows: for example, pour 50m3 of aquaculture wastewater from the sewage inlet pipe 101 into the functional tank 1, start the negative pressure pump 7, and then close the valve at the sewage inlet pipe 101. The negative pressure generated by the negative pressure pump 7 provides guidance for the aquaculture wastewater flowing on the filter plate 5, so that it flows along the channel formed between the isolation plates 103. At the same time, the sewage and smaller solid feces will fall into the bottom of the dry-wet separation chamber 104 through the filter port 501, while some larger solid feces will continue to move on the filter plate 5 and when it contacts the cutting edge on the isolation plate 103, the solid feces will be separated from the filter plate 5. When the blade 1031 is cut, the cutting blade 1031 will shear it until it is cut by the cutting blades 1031 on each isolation plate 103 to the point where it can pass through the filter port 501 and fall into the dry-wet separation chamber 104. Under the action of negative pressure, the solid feces and feces water in the dry-wet separation chamber 104 will boil under negative pressure and become steam, and finally be pumped into the wastewater collection box 2 through the drain pipe 3 for storage, and the solid feces can be blocked in the dry-wet separation chamber 104 through the stop valve 301, and under the action of negative pressure, the solid feces will gradually be compacted in the feces slag tank 6, thereby achieving solid-liquid separation. Then the solid feces are sent to the fermentation tank for organic fertilizer production, and the wastewater is sent to the sewage treatment system for deep treatment.

[0054] Among them, when the cutting blade 1031 encounters greater resistance, that is, the size of the solid feces is large and it is difficult to pass through the area between the isolation plates 103, the cutting blade 1031 is squeezed by the solid feces and is forced to retract into the movable groove 1032. At the same time, due to the action of the arc tube 10362, the speed at which the cutting blade 1031 retracts into the movable groove 1032 will be slowed down, so that it can maintain the cutting effect on the solid feces instead of being directly retracted into the movable groove 1032; when the cutting blade 1031 is retracted into the movable groove 1032, the air at the bottom of the movable groove 1032 will be squeezed into the cavity 1035, and the elastic cushion layer 1037 in the cavity 1035 will expand to push out the residue between adjacent cutting blades 1031, so that it is washed away with the flow of aquaculture sewage. When the elastic cushion layer 1037 at the top of the cavity 1035 is squeezed, the air in the cavity 1035 is squeezed back to the bottom of the movable groove 1032, so that the cutting blade 1031 is pushed out again, thereby achieving dynamic cutting and improving cutting efficiency.

[0055] During the aquaculture sewage treatment process, the staff can judge the treatment progress in the function tank 1 through the air pressure chamber 4. After the aquaculture sewage enters the function tank 1, the air pressure in the function tank 1 and the drain pipe 3 begins to decrease continuously, and the rated processing capacity of the function tank 1 is fixed each time, so the treatment progress of the function tank 1 can be judged by the air pressure change in the function tank 1 or the drain pipe 3. Specifically, when the air pressure in the function tank 1 decreases, the pressure in the air pressure chamber 4 decreases synchronously, and the piston moves downward. The staff judges the solid-liquid separation progress in the function tank 1 by the descending distance of the piston handle 8. At the same time, the air tightness of the drain pipe 3 and the function tank 1 can be judged by the descending situation of the piston handle 8, so that the piston handle 8 can not only judge the progress in the function tank 1, but also detect the air tightness of the entire device.

[0056] Example 2

[0057] The only difference from the above embodiment is that it also includes an early warning module, a power meter and a control module. In this embodiment, the early warning module is a signal light, which is located on the surface of the sealing cover 102; a flow meter is also bolted and fixedly connected in the drain pipe 3; the early warning module is used to send an early warning signal based on the instruction of the control module; the power meter is used to detect the power change of the negative pressure pump 7; the control module is used to judge the blockage of the filter port 501 based on the power change of the negative pressure pump 7. If the power change of the negative pressure pump 7 exceeds the preset threshold, the filter port 501 is judged to be blocked, and an instruction is sent to the early warning module according to the blockage level. Among them, the early warning signal is displayed with different lights according to the blockage level.

[0058] The control module is also used to establish a blockage level warning mechanism based on the flow change in the drainage pipe 3 and the power change of the negative pressure pump 7. If the flow change is less than the first flow threshold and the power change is greater than the first power threshold, the blockage level is judged to be mild; if the flow change is less than the second flow threshold and the power change is greater than the second power threshold, the blockage level is judged to be moderate; if the flow change is less than the third flow threshold and the power change is greater than the third power threshold, the blockage level is judged to be severe.

[0059] The specific implementation process is as follows: for example, when the functional tank 1 is working normally, i.e., treating aquaculture wastewater, the real-time power of the negative pressure pump 7 is P, and the flow rate collected by the flow meter is Q; the preset threshold is P0, the first power threshold is P1, the second power threshold is P2, the third power threshold is P3, the first flow threshold is Q1, the second flow threshold is Q2, and the third flow threshold is Q3;

[0060] In the process of aquaculture sewage treatment, the control module detects the flow of water vapor in the drain pipe 3 through the flow meter, and obtains the power of the negative pressure pump 7 at the same time. If P is higher than P0, the control module is ready to send a control instruction to the early warning module and judge the blockage in the function tank 1. The blockage in this embodiment indicates the number of blockages of the filter port 501 on the filter plate 5. If P is higher than P1 and Q is lower than Q1, the control module judges that the blockage in the function tank 1 is light blockage, and sends a control instruction of light blockage to the early warning module. After receiving the instruction, the early warning module sends a green early warning signal to the outside world. If P is higher than P2 and Q is lower than Q2, the control module judges that the blockage in the function tank 1 is moderate blockage, and sends a control instruction of moderate blockage to the early warning module. After receiving the instruction, the early warning module sends a yellow early warning signal to the outside world; if P is higher than P3 and Q is lower than Q3, the control module judges that the blockage in the function tank 1 is severe blockage, and sends a control instruction of severe blockage to the early warning module. After receiving the instruction, the early warning module sends a red early warning signal to the outside world.

[0061] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A rapid treatment device for pig farm wastewater, characterized in that: Includes functional tank and wastewater collection tank; A dry-wet separation chamber is provided in the functional tank, a sealing cover and a filter plate are detachably connected to the top of the dry-wet separation chamber, a sewage inlet pipe is provided on the sealing cover, and a limited position guide component is provided between the sealing cover and the filter plate; a plurality of filter ports are provided on the filter plate; A drainage pipe is connected between the functional tank and the wastewater collection box. A negative pressure pump and a stop valve are arranged in the drainage pipe. The stop valve is located at one end of the drainage pipe close to the functional tank. The limit guide assembly includes a plurality of isolation plates. The isolation plates are arranged on the filter plate in a staggered manner. The isolation plates separate the area between the sealing cover and the filter plate into a single channel. A plurality of cutting blades are arranged on one side of the isolation plates. A plurality of feces residue troughs are arranged at the bottom of the dry-wet separation chamber. The size of the feces residue trough is inversely proportional to the distance between the feces residue trough and the drainage pipe. A plurality of cleaning components are also arranged on the isolation plate, and each cleaning component corresponds to a cutting blade. The processing component includes a movable groove opened in the isolation plate, and the cutting blade is slidably matched with the movable groove; a spring is arranged at the bottom of the movable groove, and the spring is fixedly connected to the back of the cutting blade; a brush is also arranged at the groove of the movable groove; a cavity is also arranged on one side of the movable groove, and the cavity and the movable groove are connected through a connecting pipe; an elastic cushion layer is arranged on the top of the cavity, and the connecting pipe includes a main pipe and a plurality of arc pipes; the main pipe is used for the normal circulation of air in the movable groove and the cavity; the arc pipe is used to change the flow direction of part of the air flowing to the cavity, so that the air in the arc pipe is contrary to the flow direction of the air in the main pipe.

2. The pig farm wastewater rapid treatment device according to claim 1 is characterized by: A progress component is also provided on the drain pipe; the progress component includes an air pressure cabin, which is connected to the drain pipe; a piston is provided in the air pressure cabin, and the piston and the air pressure cabin are slidably matched; a piston handle is provided on the piston, and the piston handle passes through the air pressure cabin and extends outside the air pressure cabin.

3. The pig farm wastewater rapid treatment device according to claim 2 is characterized by: It also includes an early warning module, a power meter and a control module; the early warning module is used to send an early warning signal based on the instructions of the control module; the power meter is used to obtain the power change of the negative pressure pump; the control module is used to judge the blockage of the filter port based on the power change of the negative pressure pump. If the power change of the negative pressure pump exceeds the preset threshold, the filter port is judged to be blocked and an instruction is sent to the early warning module.

4. The pig farm wastewater rapid treatment device according to claim 3 is characterized by: A flow meter is also provided in the drainage pipe; the control module is also used to establish a blockage level warning mechanism based on the flow change in the drainage pipe and the power change of the negative pressure pump. If the flow change is less than the first flow threshold and the power change is greater than the first power threshold, the blockage level is judged to be mild; If the flow change is less than the second flow threshold and the power change is greater than the second power threshold, the congestion level is judged to be moderate; if the flow change is less than the third flow threshold and the power change is greater than the third power threshold, the congestion level is judged to be severe.

5. The pig farm wastewater rapid treatment device according to claim 4 is characterized by: The warning signal is displayed with different lights depending on the congestion level.

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