Sewage treatment device and method for pig farm

Abstract

The invention discloses a sewage treatment device and method for a pig farm, and belongs to the technical field of livestock breeding. The sewage treatment device for the pig farm comprises a gas tank fixedly connected to a pigsty, and further comprises a sewage treatment device, the air guide box is fixedly arranged in the air box, the air guide box is fixedly arranged in the air box and fixedly connected to the air box, an air guide pipe is fixedly connected to the air guide box and fixedly connected with an air outlet valve of the folding air bag, a medicine placing part matched with the folding air bag is arranged in the air guide box, and an exhaust pipe is fixedly connected to the air guide box. The exhaust pipe is matched with the stirring part; the extrusion effect of the folding air bag is matched with the massage effect of the massage roller, blood circulation of pigs can be promoted, the growth speed of the pigs can be increased, airflow can be generated through compression and release of the air bag to drive the impeller to rotate, liquid medicine is periodically discharged and enters the stirring box, and therefore the sewage treatment efficiency and quality are improved.

Description

Technical Field

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

[0002] In existing pig farms, sewage treatment has always been an urgent problem to be solved. The sewage treatment device used in pig farms is a device specially designed to treat wastewater generated by pig farms. These devices usually have the characteristics of high efficiency, energy saving, and environmental protection. They can effectively remove organic matter, ammonia nitrogen, suspended solids and other pollutants in wastewater and reduce pollution to the environment.

[0003] At present, the sewage treatment equipment used in pig farms only separates the solid and liquid in the sewage through a wet-dry separator. The removal effect of harmful substances in the sewage is not ideal, and it is impossible to further decompose and utilize the organic matter in the sewage. In addition, when fermenting in a fermentation tank, it is also necessary to manually add fermentation liquid to the fermentation tank regularly, which increases the complexity of the operation and labor intensity. In addition, the existing equipment often lacks an effective stirring and aeration system when treating sewage, resulting in low sewage treatment efficiency and difficulty in meeting the discharge standards for the treated water quality. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the prior art is not ideal for removing harmful substances in sewage and cannot further decompose and utilize organic matter in sewage, and to propose a sewage treatment device and method for pig farms.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A sewage treatment device for a pig farm includes an air box fixedly connected to a pigpen, and also includes a folding airbag fixedly arranged inside the air box, wherein the folding airbag is fixedly connected to a push plate, the push plate is slidably installed inside the air box, the push plate is connected to a massage roller, an air guide box fixedly connected to the air box, wherein an air guide pipe is fixedly connected to the air guide box, an air outlet valve and an air inlet valve are fixedly connected to the folding airbag, the air guide pipe is fixedly connected to the air outlet valve, a medicine releasing part cooperating with the folding airbag is arranged in the air guide box, a stirring box is arranged next to the pigpen, a stirring part for stirring sewage is arranged in the stirring box, an exhaust pipe is fixedly connected to the air guide box, and the exhaust pipe cooperates with the stirring part.

[0007] Preferably, the push plate is fixedly connected to a mounting seat, a roller is rotatably mounted in the mounting seat, the massage roller is fixedly connected to the roller, a first cam is fixedly connected to the mounting seat, second cams are fixedly connected on both sides of the roller, and the first cam cooperates with the second cam.

[0008] In order to facilitate the resetting and inflation of the folding airbag, preferably, a slider is fixedly connected to the push plate, a slide groove is opened in the air box, the slider is slidably installed inside the slide groove, a reset spring is fixedly connected to the slider, and the free end of the reset spring is fixedly connected to the slide groove.

[0009] In order to use the airflow discharged from the airbag to drive the impeller to rotate and discharge the material, the drug discharging part further includes a gas channel opened on the air guide box, one end of the gas channel is fixedly connected to the air guide pipe, and the other end of the gas channel is fixedly connected to the exhaust pipe, wherein an impeller is rotatably installed inside the gas channel, a plurality of discharge ports are opened in the impeller annular array, and a liquid storage tank is fixedly connected to the impeller, and the impeller cooperates with the liquid storage tank.

[0010] In order to facilitate the transportation of the medicinal solution, further, a discharge hopper is fixedly connected to the inside of the liquid storage tank, a box cover is sealingly installed on the liquid storage tank, the discharge end of the discharge hopper passes through the gas channel, the discharge end of the liquid storage tank is fixedly connected to a fitting rubber head, the fitting rubber head is fitted on the impeller, a limiting support plate is fixedly connected to the gas channel, the impeller is rotatably installed on the limiting support plate, wherein a receiving hopper is fixedly connected to the limiting support plate, the receiving hopper cooperates with the fitting rubber head, the discharge end of the receiving hopper is fixedly connected to a drain pipe, and the output end of the drain pipe is fixedly connected to the exhaust pipe.

[0011] In order to stir and ferment the liquid in the fermentation box, the stirring part further includes at least two stirring rods rotatably installed in the stirring box, any one of the stirring rods is fixedly connected to a driving motor, the stirring box is fixedly connected to a bracket, the driving motor is fixedly connected to the bracket, both of the two stirring rods are fixedly connected to pulleys, and the two pulleys are connected by a transmission belt.

[0012] In order to enhance the fermentation effect, further, a stirring blade is fixedly connected to the stirring rod, a connecting port is opened on the stirring rod not connected to the driving motor, the connecting port is fixedly connected to the exhaust pipe, a connecting cavity is opened in the stirring rod, a guide cavity is opened on the stirring blade, and the connecting cavity is connected to the guide cavity.

[0013] In order to achieve preliminary solid-liquid separation of the objects in the mixing box, further, the mixing rod is fixedly connected to the mixing rod, a connecting rod is rotatably installed in the mixing box, a filter plate is fixedly connected to the connecting rod, a support plate is fixedly connected to the mixing box, the filter plate is fitted on the support plate, a protrusion is fixedly connected to the filter plate, and the protrusion cooperates with the mixing rod, wherein a sewage trough is provided on the mixing box, a sewage receiving box is fixedly connected to the sewage trough, the filter plate cooperates with the sewage trough, a sewage pipe is fixedly connected to the sewage receiving box, the output end of the sewage pipe is fixedly connected to a solid-liquid separator, and a guide pipe is provided on the mixing box, and a fermentation tank is fixedly connected to the guide pipe.

[0014] In order to carry out secondary solid-liquid separation of sewage, further, a drain board is fixedly connected to the pigpen, the inner wall of the drain board is inclined, a pumping pipe is provided on the drain board, a water pump is fixedly connected to the pumping pipe, the output end of the water pump is fixedly connected to the drain pipe, the output end of the drain pipe is fixedly connected to the mixing tank, wherein the solid-liquid separator is fixedly connected to the fermentation tank, the discharge port provided on the fermentation tank is extended outside the fermentation tank, and a discharge port is provided on the fermentation tank.

[0015] A method for treating wastewater in a pig farm further comprises the following steps:

[0016] S1. After the pigsty is regularly flushed and scrubbed, the sewage flows into the drainage board through the gap on the pigsty, and is poured into the mixing tank through the water pump;

[0017] S2. After the sewage enters the mixing box, the liquid and solid are initially separated by the filter plate, and the stirring rod set on it moves the bumps on the filter plate when the stirring rod rotates and stirs, so that the sludge and pig manure on the filter plate enter the sewage receiving box;

[0018] S3, the solid enters the solid-liquid separator through the sewage pipe, and the solid-liquid separator performs secondary solid-liquid separation on the solid through the internal auger. The liquid slides from the surface of the solid-liquid separator into the fermentation tank, and the squeezed pig manure falls from the discharge port;

[0019] S4. After flushing the pig pen, the ground and the pigs are relatively wet. The pigs are massaged by the massage roller and the folded airbags inside the air box are squeezed. The airflow enters the air guide box and drives the impeller to rotate, so that the fermentation liquid and gas enter the mixing box, and the sewage in the mixing box is gas-exploded and the liquid medicine is fermented simultaneously.

[0020] Compared with the prior art, the present invention provides a sewage treatment device and method for pig farms, which has the following beneficial effects:

[0021] 1. The sewage treatment device of the pig farm can not only promote the blood circulation of pigs and increase the growth rate of pigs through the squeezing effect of the folded airbag and the massage effect of the massage roller, but also generate airflow through the compression and release of the airbag, thereby driving the impeller to rotate, realizing the periodic discharge of the liquid medicine and entering the mixing box, thereby improving the efficiency and quality of sewage treatment.

[0022] 2. The sewage treatment device of the pig farm is equipped with multiple stirring rods and drive motors in the stirring box to ensure that the solids and liquids in the sewage can be fully mixed and stirred, thereby accelerating the decomposition process of organic matter in the sewage and improving the sewage treatment rate.

[0023] 3. The sewage treatment device of the pig farm realizes the preliminary solid-liquid separation of sewage through the coordinated use of filter plates and stirring rods, reducing the difficulty and cost of subsequent treatment. At the same time, the protrusions on the filter plates cooperate with the stirring rods. During the rotation of the stirring rods, the protrusions are moved to make the filter plates tilt upward and vibrate. The solid impurities above the filter plates can enter the solid-liquid separator more conveniently through the tilt, thereby improving the separation efficiency and preventing the filter plates from being blocked.

[0024] 4. The sewage treatment device of the pig farm discharges the gas and fermentation liquid from the connecting port into the connecting cavity through the exhaust pipe. The connecting cavity is connected to the guide cavity opened on the stirring blade. The gas and fermentation liquid entering the guide cavity are discharged into the sewage in the stirring box through the guide cavity. The stirring blade and the stirring rod are rotated and stirred to enhance the stirring and fermentation effects. The gas produces an aeration effect inside the sewage, providing the necessary oxygen environment for the aerobic microorganisms in the sewage to further accelerate the sewage purification process.

[0025] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. While the pigs are massaged by the massage roller, the present invention pushes the air bag to form an airflow to pour the fermentation liquid and the airflow into the mixing box, producing an aeration effect and cooperating with stirring to improve the fermentation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a sewage treatment device for a pig farm proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of a massage roller of a sewage treatment device for a pig farm proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of an air box of a sewage treatment device for a pig farm proposed by the present invention;

[0029] Figure 4 A sewage treatment device for a pig farm proposed by the present invention Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of an air guide box of a sewage treatment device for a pig farm proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the internal structure of an air guide box of a sewage treatment device for a pig farm proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the cross-sectional structure of a receiving hopper of a sewage treatment device for a pig farm proposed by the present invention;

[0033] Figure 8 This is a schematic diagram of the internal structure of a mixing box of a sewage treatment device for a pig farm proposed by the present invention;

[0034] Fig. 9 This is a schematic diagram of the cross-sectional structure of a stirring rod of a sewage treatment device for a pig farm proposed by the present invention;

[0035] Fig.10 This is a schematic diagram of the drainage board structure of a sewage treatment device for a pig farm proposed by the present invention.

[0036] In the figure: 1. Drain plate; 11. Pig pen; 2. Air box; 21. Exhaust valve; 22. Inlet valve; 23. Mounting seat; 24. First cam; 25. Roller; 26. Second cam; 27. Massage roller; 28. Push plate; 29. ​​Folding airbag; 210. Slider; 211. Slide; 212. Return spring; 213. Air guide pipe; 3. Box cover; 31. Exhaust pipe; 32. Liquid storage box; 33. Air guide box; 34. Drain pipe; 35. Discharge hopper; 36. Gas channel; 37. Impeller; 38. Feeding port; 39. Laminating rubber head; 310. Limiting support plate; 311. hopper; 4. water pump; 41. suction pipe; 42. drainage pipe; 5. mixing box; 51. sewage pipe; 52. diversion pipe; 53. sewage box; 54. bracket; 55. driving motor; 56. pulley; 57. transmission belt; 58. stirring stick; 59. stirring rod; 510. stirring blade; 511. connecting rod; 512. filter plate; 513. support plate; 514. bump; 515. sewage trough; 516. connecting port; 517. connecting cavity; 518. diversion cavity; 6. fermentation tank; 61. solid-liquid separator; 62. discharge port; 63. discharge port. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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 a limitation on the present invention.

[0039] Example:

[0040] Reference Figure 1-Figure 10, including an air box 2 fixedly connected to the pigsty 11, and also including; a folding airbag 29, which is fixedly arranged inside the air box 2, wherein a push plate 28 is fixedly connected to the folding airbag 29, and the push plate 28 is slidably installed inside the air box 2, and the expansion and contraction of the folding airbag 29 are controlled by the air inlet valve 22 and the air outlet valve 21. When the push plate 28 is pushed, the folding airbag 29 is squeezed and deflated; when the push plate 28 is not subjected to thrust, the folding airbag 29 resumes deflation, and a massage roller 27 is connected to the push plate 28, and the massage roller 27 connected thereto performs a certain degree of massage on the pigs in the pigsty 11, which helps to promote blood circulation and pig health. When the pigs use the massage roller 27 for massage, the folding airbag 29 will be squeezed and deflated when the push plate 28 is pushed, and an air guide box 33 fixedly connected to the air box 2, when the folding airbag 29 is deflated, specific medicines or Biological agents are introduced into the sewage treatment process to enhance the sewage purification effect, wherein an air duct 213 is fixedly connected to the air guide box 33, an air outlet valve 21 and an air inlet valve 22 are fixedly connected to the folding air bag 29, the air duct 213 is fixedly connected to the air outlet valve 21, a medicine dispensing part cooperating with the folding air bag 29 is arranged in the air guide box 33, a stirring box 5 arranged next to the pigpen 11 is used to receive and treat the sewage discharged from the pigpen 11, a stirring part for stirring the sewage is arranged in the stirring box 5, and the pollutants in the sewage and the treatment agent are fully mixed through mechanical stirring to accelerate the sewage purification process, an exhaust pipe 31 is fixedly connected to the air guide box 33, and the exhaust pipe 31 cooperates with the stirring part, when the folding air bag 29 is deflated, the gas inside it enters the air duct 213 through the air outlet valve 21, and is then directly introduced into the stirring box 5 through the exhaust pipe 31. This airflow forms bubbles in the mixing box 5, and is evenly distributed in the sewage with the stirring action of the stirring part. During the rising and bursting process of the bubbles, oxygen in the air is continuously brought into the sewage, providing the necessary oxygen environment for the aerobic microorganisms in the sewage. Aerobic microorganisms use this oxygen to decompose organic matter in the sewage, converting it into carbon dioxide, water and other harmless substances, thereby purifying the sewage. In addition, the stirring action of the bubbles can also promote the diffusion and mixing of suspended matter, colloidal substances and soluble pollutants in the sewage, improve the contact efficiency between the sewage and the microorganisms, and further accelerate the sewage purification process.

[0041] Reference Figure 2-Figure 4The push plate 28 is fixedly connected with a mounting seat 23, and a roller shaft 25 is rotatably mounted in the mounting seat 23, so that the massage roller 27 can rotate freely around the roller shaft 25, and the massage roller 27 is fixedly connected to the roller shaft 25. The massage roller 27 can roll freely to provide a massage effect for the pigs, which is helpful for their blood circulation and comfort. When the pigs are massaged by the massage roller 27, a first cam 24 is fixedly connected to the mounting seat 23, and second cams 26 are fixedly connected on both sides of the roller shaft 25. The first cam 24 cooperates with the second cam 26, and the second cam 26 is fixedly connected to both sides of the roller shaft 25. As the roller shaft 25 rotates, the second cam 26 interacts with the first cam 24, thereby producing The cam matching mechanism may be used to adjust the movement and vibration of the massage roller 27 to enhance the massage effect on pigs. The push plate 28 is fixedly connected with a slider 210 as a guide component for the push plate 28 to slide inside the air box 2. A slide groove 211 is provided in the air box 2. The slider 210 is slidably installed inside the slide groove 211. A return spring 212 is fixedly connected to the slider 210. The free end of the return spring 212 is fixedly connected to the slide groove 211. The function of the return spring 212 is to provide a rebound force for the push plate 28 after the folded air bag 29 is deflated, so that it can quickly return to the initial position to prepare for the next pushing action, thereby enhancing the massage effect on pigs.

[0042] Reference Figure 1 , Figure 5 , Figure 6 , Figure 7The medicine dispensing part includes a gas channel 36 opened on the air guide box 33, one end of the gas channel 36 is fixedly connected to the air guide pipe 213, and the other end of the gas channel 36 is fixedly connected to the exhaust pipe 31. When the folded airbag 29 releases gas, the gas can enter the gas channel 36 through the air guide pipe 213 and finally be discharged through the exhaust pipe 31, wherein an impeller 37 is rotatably installed inside the gas channel 36, and a plurality of discharge ports 38 are opened in a ring array of the impeller 37. These discharge ports 38 will periodically fit with the receiving hopper 311 of the gas channel 36 when the impeller 37 rotates, allowing the liquid therein to flow out, and a liquid storage tank 32 is fixedly connected to the impeller 37, and the impeller 37 cooperates with the liquid storage tank 32. A discharge hopper 35 is fixedly connected to the liquid storage tank 32, and a box cover 3 is sealed on the liquid storage tank 32. The discharge end of the discharge hopper 35 runs through the gas channel 36, and the discharge end of the liquid storage tank 32 A fitting rubber head 39 is fixedly connected and fitted on the impeller 37. When the impeller 37 rotates, the fitting rubber head 39 will fit tightly to the surface of the impeller 37 through elasticity and maintain a sealed state to prevent liquid from leaking at an unintended position. A limiting support plate 310 is fixedly connected in the gas channel 36, and the impeller 37 is rotatably installed on the limiting support plate 310. Among them, a receiving hopper 311 is fixedly connected in the limiting support plate 310, and the receiving hopper 311 cooperates with the fitting rubber head 39. When the fitting rubber head 39 moves to the top of the receiving hopper 311, the liquid in the discharge port 38 will be thrown out and fall into the receiving hopper 311. The discharge end of the receiving hopper 311 is fixedly connected with a drain pipe 34, and the output end of the drain pipe 34 is fixedly connected to the exhaust pipe 31. After the liquid is thrown into the receiving hopper 311, it will flow into the exhaust pipe 31 along the drain pipe 34 and be transported to the target position together with the gas.

[0043] When the gas enters the gas channel 36 through the air guide pipe 213, it will push the impeller 37 to rotate. The rotation of the impeller 37 drives the liquid storage tank 32 and the bonding rubber head 39 to move together. At the same time, the discharge port 38 is periodically aligned with the receiving hopper 311. At the moment of alignment, the liquid in the liquid storage tank 32 will be thrown into the receiving hopper 311 through the discharge hopper 35 and the discharge port 38. The liquid then flows into the exhaust pipe 31 along the drain pipe 34 and is transported to the target position after mixing with the gas.

[0044] Reference Figure 1 , Figure 8 , Fig. 9The stirring part includes at least two stirring rods 58 rotatably installed in the stirring box 5, any stirring rod 58 is fixedly connected to a driving motor 55, the stirring box 5 is fixedly connected to a bracket 54, the driving motor 55 is fixedly connected to the bracket 54, the two stirring rods 58 are fixedly connected to a pulley 56, the two pulleys 56 are connected by a transmission belt 57, the transmission effect is achieved so that the two stirring rods 58 rotate synchronously, and the rotation speed of the two stirring rods 58 is ensured to be consistent, thereby improving the stirring efficiency, and the stirring rod 58 is fixedly connected to a stirring rod 58. The stirring blade 510 is provided with a connecting port 516 on the stirring rod 58 which is not connected to the driving motor 55. The connecting port 516 is fixedly connected to the exhaust pipe 31. A connecting cavity 517 is provided in the stirring rod 58. The exhaust pipe 31 discharges the gas and the fermentation liquid into the connecting cavity 517 through the connecting port 516. The stirring blade 510 is provided with a guide cavity 518. The connecting cavity 517 is connected to the guide cavity 518. The gas and the fermentation liquid entering the guide cavity 518 are discharged into the sewage in the stirring box 5 through the guide cavity 518, thereby enhancing the stirring and fermentation efficiency. The stirring rod 58 is fixedly connected with a stirring rod 59, a connecting rod 511 is rotatably installed in the stirring box 5, a filter plate 512 is fixedly connected with the connecting rod 511, a support plate 513 is fixedly connected with the stirring box 5, the filter plate 512 is fitted on the support plate 513, a convex block 514 is fixedly connected with the filter plate 512, and the convex block 514 cooperates with the stirring rod 59 to assist in pushing the filter plate 512 to tilt upward during the stirring process, vibrate the material on the filter plate 512, and make the pig manure and sludge on the filter plate 512 more Effective discharge can avoid clogging of the filter plate 512 and improve the filtration efficiency. Among them, a sewage trough 515 is provided on the mixing box 5, and a sewage receiving box 53 is fixedly connected to the sewage trough 515. The filter plate 512 cooperates with the sewage trough 515 to collect solid waste falling from the filter plate 512. The sewage receiving box 53 is fixedly connected with a sewage pipe 51. The output end of the sewage pipe 51 is fixedly connected with a solid-liquid separator 61 for further processing the solid waste. The mixing box 5 is provided with a guide pipe 52, and the upper part of the guide pipe 52 is fixedly connected with a fermentation tank 6.

[0045] The driving motor 55 drives the two stirring rods 58 to rotate synchronously through the transmission system of the transmission belt 57. The stirring blades 510 on the stirring rods 58 stir the substances in the box. During the stirring process, the gas and fermentation liquid pass through the diversion chamber 518 and are discharged into the sewage in the stirring box 5 through the diversion chamber 518, thereby enhancing the stirring and fermentation effects. The stirred substances are filtered through the filter plate 512, and the solid waste falls into the sewage trough 515 and is collected in the sewage receiving box 53, and then is sent to the solid-liquid separator 61 through the sewage pipe 51 for further processing. The filtered liquid is introduced into the fermentation tank 6 through the diversion pipe 52 for subsequent biological treatment or utilization.

[0046] Reference Figure 1 , Fig.10A drainage board 1 is fixedly connected to the pigpen 11 for collecting and guiding wastewater and dirt generated in the pigpen 11. The inner wall of the drainage board 1 is inclined, which helps the wastewater and dirt to flow smoothly to the lower part of the drainage board 1 to avoid accumulation and blockage. A suction pipe 41 is provided on the drainage board 1. The suction pipe 41 is fixedly connected to a water pump 4. The water pump 4 is fixedly connected to the suction pipe 41 for extracting wastewater and dirt in the pigpen 11 and transporting them to subsequent treatment equipment. The output end of the water pump 4 is fixedly connected to a drainage pipe 42. The output end of the drainage pipe 42 is fixedly connected to the mixing box 5 to ensure that the wastewater and dirt can smoothly enter the mixing box 5 for preliminary treatment, wherein a solid-liquid separator 61 is fixedly connected to the fermentation tank 6, and is used to separate the solid and liquid in the mixture output by the mixing box 5. A discharge port 62 is arranged on the fermentation tank 6 and is extended outside the fermentation tank 6. The pig manure after dry-wet separation is discharged through the discharge port 62 and processed into fertilizer. A discharge port 63 is provided on the fermentation tank 6. The fermentation tank 6 is used to perform biological fermentation treatment on the liquid part, and organic matter is decomposed into more stable and harmless substances through the action of microorganisms. A discharge port 62 is provided on the fermentation tank 6, and is used to discharge the treated substances after the fermentation is completed for subsequent use or disposal.

[0047] A method for treating wastewater in a pig farm further comprises the following steps:

[0048] S1. After the pig pen 11 is regularly flushed and scrubbed, the sewage flows into the drainage board 1 through the gap on the pig pen 11, and is poured into the mixing box 5 through the water pump 4;

[0049] S2. After the sewage enters the mixing box 5, the liquid and solid are initially separated by the filter plate 512, and the stirring rod 58 rotates and stirs the stirring rod 59 arranged on it to move the protrusion 514 on the filter plate 512, so that the sludge and pig manure on the filter plate 512 enter the sewage receiving box 53;

[0050] S3, the solid enters the solid-liquid separator 61 through the sewage pipe 51, and the solid-liquid separator 61 performs secondary solid-liquid separation on the solid through the internal auger, and the liquid slides from the surface of the solid-liquid separator 61 into the fermentation tank 6, and the squeezed pig manure falls from the discharge port 62;

[0051] S4. After flushing the pig pen 11, the ground and the pigs are relatively wet. The pigs are massaged by the massage roller 27 and the folded airbags 29 inside the air box 2 are squeezed. The airflow enters the air guide box 33 to drive the impeller 37 to rotate, so that the fermentation liquid and gas enter the mixing box 5, and the sewage in the mixing box 5 is gas-exploded and the liquid medicine is fermented synchronously.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sewage treatment device for a pig farm, comprising an air box (2) fixedly connected to a pig pen (11), characterized in that: Also includes; A folded air bag (29) is fixedly arranged inside the air box (2). The folding airbag (29) is fixedly connected to a push plate (28), the push plate (28) is slidably installed inside the air box (2), and the push plate (28) is connected to a massage roller (27); an air guide box (33) fixedly connected to the air box (2), The air guide box (33) is fixedly connected with an air guide tube (213), the folding air bag (29) is fixedly connected with an air outlet valve (21) and an air inlet valve (22), the air guide tube (213) is fixedly connected with the air outlet valve (21), and a medicine placing part cooperating with the folding air bag (29) is arranged in the air guide box (33); A stirring box (5) is arranged beside the pig pen (11), The stirring box (5) is provided with a stirring portion, and the air guide box (33) is fixedly connected with an exhaust pipe (31), and the exhaust pipe (31) cooperates with the stirring portion.

2. A sewage treatment device for a pig farm according to claim 1, characterized in that: The push plate (28) is fixedly connected to a mounting seat (23), a roller shaft (25) is rotatably mounted in the mounting seat (23), the massage roller (27) is fixedly connected to the roller shaft (25), a first cam (24) is fixedly connected to the mounting seat (23), and second cams (26) are fixedly connected to both sides of the roller shaft (25), and the first cam (24) and the second cam (26) cooperate with each other.

3. A sewage treatment device for a pig farm according to claim 2, characterized in that: A slider (210) is fixedly connected to the push plate (28), a slide groove (211) is provided in the air box (2), the slider (210) is slidably installed inside the slide groove (211), a return spring (212) is fixedly connected to the slider (210), and the free end of the return spring (212) is fixedly connected to the slide groove (211).

4. The sewage treatment device for a pig farm according to claim 1, characterized in that: The drug dispensing unit comprises a gas channel (36) opened on the air guide box (33), one end of the gas channel (36) is fixedly connected to the air guide pipe (213), and the other end of the gas channel (36) is fixedly connected to the exhaust pipe (31). An impeller (37) is rotatably mounted inside the gas channel (36), a plurality of discharge ports (38) are provided in a circular array on the impeller (37), a liquid storage tank (32) is fixedly connected to the impeller (37), and the impeller (37) cooperates with the liquid storage tank (32).

5. A sewage treatment device for a pig farm according to claim 4, characterized in that: A discharge hopper (35) is fixedly connected to the inside of the liquid storage box (32), a box cover (3) is sealedly mounted on the liquid storage box (32), a discharge end of the discharge hopper (35) penetrates the gas channel (36), a fitting rubber head (39) is fixedly connected to the discharge end of the liquid storage box (32), the fitting rubber head (39) is fitted on the impeller (37), a limit support plate (310) is fixedly connected to the inside of the gas channel (36), and the impeller (37) is rotatably mounted on the limit support plate (310), A material receiving hopper (311) is fixedly connected inside the position limiting support plate (310), the material receiving hopper (311) cooperates with the bonding rubber head (39), the discharge end of the material receiving hopper (311) is fixedly connected to a drainage pipe (34), and the output end of the drainage pipe (34) is fixedly connected to the exhaust pipe (31).

6. The sewage treatment device for a pig farm according to claim 1, characterized in that: The stirring part comprises at least two stirring rods (58) rotatably mounted in a stirring box (5), any one of the stirring rods (58) being fixedly connected to a driving motor (55), the stirring box (5) being fixedly connected to a bracket (54), the driving motor (55) being fixedly connected to the bracket (54), the two stirring rods (58) being fixedly connected to a pulley (56), and the two pulleys (56) being connected in transmission via a transmission belt (57).

7. The sewage treatment device for a pig farm according to claim 6, characterized in that: The stirring rod (58) is fixedly connected to a stirring blade (510); the stirring rod (58) not connected to the driving motor (55) is provided with a connecting port (516); the connecting port (516) is fixedly connected to the exhaust pipe (31); a connecting cavity (517) is provided in the stirring rod (58); a guide cavity (518) is provided on the stirring blade (510); the connecting cavity (517) is connected to the guide cavity (518).

8. The sewage treatment device for a pig farm according to claim 7, characterized in that: The stirring rod (58) is fixedly connected to a stirring rod (59); a connecting rod (511) is rotatably installed in the stirring box (5); a filter plate (512) is fixedly connected to the connecting rod (511); a support plate (513) is fixedly connected to the stirring box (5); the filter plate (512) is fitted on the support plate (513); a protrusion (514) is fixedly connected to the filter plate (512); the protrusion (514) cooperates with the stirring rod (59); The mixing box (5) is provided with a sewage trough (515), a sewage receiving box (53) is fixedly connected to the sewage trough (515), the filter plate (512) cooperates with the sewage trough (515), a sewage pipe (51) is fixedly connected to the sewage receiving box (53), the output end of the sewage pipe (51) is fixedly connected to a solid-liquid separator (61), the mixing box (5) is provided with a flow guide pipe (52), and the flow guide pipe (52) is fixedly connected to a fermentation tank (6).

9. The sewage treatment device for a pig farm according to claim 8, characterized in that: The pig pen (11) is fixedly connected to a drainage board (1), the inner wall of the drainage board (1) is inclined, a water pump (41) is provided on the drainage board (1), the water pump (41) is fixedly connected to a water pump (4), the output end of the water pump (4) is fixedly connected to a drainage pipe (42), and the output end of the drainage pipe (42) is fixedly connected to a mixing box (5). The solid-liquid separator (61) is fixedly connected to the fermentation tank (6), the discharge port (62) provided on the fermentation tank (6) is extended outside the fermentation tank (6), and the fermentation tank (6) is provided with a discharge port (63).

10. A method for treating wastewater in a pig farm, comprising the wastewater treatment equipment for a pig farm according to any one of claims 1 to 9, characterized in that: The following steps are also included: S1. After the pig pen (11) is regularly flushed and scrubbed, sewage flows into the drainage board (1) through the gap on the pig pen (11), and is poured into the mixing box (5) through the water pump (4); S2, after the sewage enters the mixing box (5), the liquid and the solid are initially separated by the filter plate (512), and when the stirring rod (58) rotates and stirs, the stirring rod (59) provided on it moves the protrusion (514) on the filter plate (512), so that the sludge and pig manure on the filter plate (512) enter the sewage receiving box (53); S3, the solid enters the solid-liquid separator (61) through the sewage pipe (51), and the solid-liquid separator (61) performs secondary solid-liquid separation on the solid through the internal auger, and the liquid slides from the surface of the solid-liquid separator (61) into the fermentation tank (6), and the squeezed pig manure falls from the discharge port (62); S4. After flushing the pig pen (11), the ground and the pigs are relatively moist. The pigs are massaged by the massage roller (27) and the folded airbag (29) inside the air box (2) is squeezed. The airflow enters the air guide box (33) and drives the impeller (37) to rotate, so that the fermentation liquid and gas enter the mixing box (5), and the sewage in the mixing box (5) is gas-exploded and the liquid medicine is fermented synchronously.

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