Method and system for comprehensive treatment of livestock and poultry manure

Abstract

The present application relates to the technical field of excrement treatment, in particular to a comprehensive treatment method and system for livestock and poultry excrement, wherein the comprehensive treatment system for livestock and poultry excrement comprises an excrement dry-wet separation device for dry-wet separation of excrement. The excrement dry-wet separation device comprises a machine case, a filter cartridge, an auger assembly, a pressing plate and a cleaning assembly. When the filter cartridge is blocked, the liquid is periodically sprayed to the surface of the filter cartridge by the cleaning assembly to flush the filter cartridge, thereby effectively solving the problem of filter cartridge blockage.

Description

Technical Field

[0001] This invention relates to the field of manure treatment technology, and in particular to a comprehensive treatment method and system for livestock and poultry manure. Background Technology

[0002] In recent years, with the rapid development of my country's livestock and poultry farming industry towards large-scale and intensive operations, the total amount of manure and wastewater generated daily by farms has increased significantly. If this manure and wastewater is discharged directly without effective treatment, it can easily lead to excessive heavy metals in the soil, eutrophication of water bodies, and air pollution, not only damaging the ecological environment but also potentially affecting human health through the food chain. Therefore, the harmless treatment and resource utilization of livestock and poultry manure and wastewater has become one of the core requirements for the sustainable development of the livestock industry. Related treatment technologies are widely used in the back-end treatment of manure and wastewater in large-scale farms and in the raw material pretreatment process of organic fertilizer production enterprises.

[0003] To address the challenges of manure treatment, existing extrusion-type dry-wet separation equipment has become one of the mainstream treatment devices due to its advantages of compact structure, simple operation, high separation efficiency, and controllable cost. This type of equipment typically uses an auger to transport manure and utilizes the extrusion action between the filter cartridge and the auger to achieve solid-liquid separation. The separated solid residue can be further processed into organic fertilizer raw materials, achieving resource recovery; the separated liquid, after undergoing subsequent processes such as anaerobic fermentation and biochemical treatment to meet standards, can be used for farmland irrigation or discharged in compliance with standards, thus reducing the volume and recycling manure.

[0004] However, during long-term continuous operation, existing extrusion-type dry-wet separation equipment is prone to the accumulation of coarse fibers, impurities, and other substances contained in the sewage on the surface of the filter cartridge during the extrusion process, which leads to filter cartridge blockage. This prevents the liquid from passing through the filter cartridge smoothly, reduces the solid-liquid separation efficiency, and affects the quality of the output. Summary of the Invention

[0005] Therefore, it is necessary to provide a comprehensive treatment method and system for livestock and poultry manure, addressing the problem that existing equipment easily leads to filter cartridge clogging when treating manure.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A comprehensive treatment system for livestock and poultry manure includes a manure-wet separation device for separating the manure into wet and dry components, wherein the manure-wet separation device comprises:

[0008] The machine casing has an inlet for conveying materials and an outlet for discharging materials; a material processing chamber is formed inside the machine casing.

[0009] A filter cartridge is disposed inside the material processing chamber and fixedly connected to the chassis; the interior of the filter cartridge and the chassis together form a solid-liquid separation chamber, one end of which is connected to the feed inlet and the other end of which is connected to the discharge outlet;

[0010] A screw conveyor assembly, comprising a rotating shaft and screw conveyor blades; the rotating shaft is rotatably disposed within the solid-liquid separation chamber and coaxially disposed inside the filter cartridge; the screw conveyor blades are spirally arranged around the central axis of the rotating shaft and fixed to the outer wall of the rotating shaft;

[0011] A pressure plate is positioned close to the discharge port and spaced apart from it; the rotating shaft can rotate around its own axis, allowing the auger blades to transport the material and, in conjunction with the pressure plate, to squeeze the material to achieve solid-liquid separation.

[0012] A cleaning component that, when the filter cartridge becomes clogged, periodically sprays liquid onto the surface of the filter cartridge to flush it.

[0013] Furthermore, a liquid outlet hole is provided on the auger blade near the discharge port, the liquid outlet hole is located on the edge of the auger blade, and the opening of the liquid outlet hole faces the surface of the filter cartridge; a liquid inlet hole is provided on the rotating shaft near the discharge port; a baffle is fixedly installed inside the rotating shaft, the baffle is coaxial with the rotating shaft with clearance fit; the baffle and the rotating shaft together form a receiving cavity, the receiving cavity is used to contain liquid, and both the liquid outlet hole and the liquid inlet hole are in communication with the receiving cavity; when the filter cartridge is severely blocked, the amount of liquid entering the receiving cavity increases; when the filter cartridge is not severely blocked, the amount of liquid entering the receiving cavity decreases.

[0014] Furthermore, the cleaning assembly includes a pneumatic unit, a reset unit, and a push rod. The pneumatic unit periodically provides power to the push rod. The push rod is slidable along its own axis and is coaxially disposed inside the baffle. When the pneumatic unit drives the push rod to slide along its own axis, liquid is filled into the receiving cavity. When the reset unit resets the push rod, the liquid in the receiving cavity is sprayed toward the filter cartridge through the liquid outlet.

[0015] Furthermore, the pneumatic unit includes a first support shaft, a second support shaft, and an external air extraction system. The first and second support shafts are coaxially sleeved together and both are fixedly connected to the housing. The second support shaft is coaxially rotatably disposed at the end of the rotating shaft near the discharge port. Both the first and second support shafts are coaxially slidably connected to the push rod. An air extraction chamber is formed inside the first and second support shafts. The push rod, the baffle, and the second support shaft together form a sealed cavity. The sealed cavity, the air extraction chamber, and the receiving cavity are all isolated from each other. The external air extraction system is used to extract air from the air extraction chamber to drive the push rod to slide along its own axial direction.

[0016] Furthermore, the reset unit includes a tension spring, one end of which is fixedly connected to the push rod and the other end is fixedly connected to the second support shaft. The elastic force of the tension spring always causes the push rod to tend to slide away from the first support shaft.

[0017] Furthermore, it also includes a drive mechanism for driving the rotating shaft to rotate about its own axis.

[0018] Furthermore, the drive mechanism includes a third support shaft, a motor, and a coupling. The third support shaft is rotatably connected to the housing and is coaxially fixed at one end of the rotating shaft near the feed inlet. The coupling is connected to the third support shaft, and the motor provides power to the third support shaft through the coupling.

[0019] Furthermore, the liquid outlet is inclined.

[0020] Furthermore, it also includes a wastewater tank for collecting the liquid filtered by the filter cartridge.

[0021] Furthermore, a comprehensive treatment method for livestock and poultry manure, used to implement the comprehensive treatment system for livestock and poultry manure as described in any of the above claims, includes the following steps:

[0022] S100, the rotating shaft rotates around its own axis, driving the auger blades to rotate synchronously;

[0023] S200, the material is fed into the solid-liquid separation chamber from the feed inlet, and the auger blades push the material toward the discharge outlet to perform solid-liquid separation;

[0024] S210, the material accumulates near the discharge port, and the material is squeezed in the gap between the pressure plate and the discharge port to achieve solid-liquid separation;

[0025] S220, the liquid is filtered through the filter cartridge; solid residue is discharged from the gap between the pressure plate and the outlet.

[0026] S300, when the filter cartridge becomes clogged, the cleaning component periodically drives liquid to spray onto the surface of the filter cartridge to flush the filter cartridge and relieve the clogging.

[0027] The beneficial effects of this invention are:

[0028] This invention provides a comprehensive treatment method and system for livestock and poultry manure. The comprehensive treatment system includes a manure-water separation device for separating the manure into wet and dry components. The manure-water separation device includes a casing, a filter cartridge, an auger assembly, a pressure plate, and a cleaning component. The casing has an inlet for conveying materials and an outlet for discharging materials, and an internal material processing chamber. The filter cartridge is disposed in the material processing chamber and fixedly connected to the casing. The interior of the filter cartridge and the casing together form a solid-liquid separation chamber, with one end connected to the inlet and the other end connected to the outlet. The auger assembly includes a rotating shaft and auger blades. The rotating shaft is rotatably disposed within the solid-liquid separation chamber and coaxially disposed inside the filter cartridge. The auger blades are spirally arranged around the central axis of the rotating shaft and fixed to the outer wall of the rotating shaft. The rotating shaft rotates around its own axial direction, driving the auger blades to rotate synchronously, thereby conveying and propelling the material. The pressure plate is disposed near the outlet, with a pre-existing gap between it and the outlet. The rotating shaft drives the auger blades to rotate, conveying the material entering from the inlet to the outlet. Under the continuous thrust of the auger blades, the material is squeezed in the gap between the pressure plate and the outlet, achieving solid-liquid separation. The liquid is discharged through the filter cartridge, while the solid residue is discharged from the gap between the pressure plate and the outlet. When the filter cartridge becomes clogged, the cleaning component periodically sprays liquid onto the surface of the filter cartridge to flush it, effectively solving the clogging problem. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a comprehensive treatment system for livestock and poultry manure provided in an embodiment of the present invention;

[0030] Figure 2 for Figure 1 The main view;

[0031] Figure 3 for Figure 1 Structural diagram of some components in the middle section;

[0032] Figure 4 for Figure 3 Exploded view;

[0033] Figure 5 for Figure 3 Side view;

[0034] Figure 6 for Figure 5 A sectional view along section AA;

[0035] Figure 7 for Figure 4 A magnified view of a portion of point B in the middle;

[0036] Figure 8 for Figure 6 A magnified view of a portion of point C.

[0037] in:

[0038] 110. Frame; 120. Chassis; 121. Material handling chamber; 122. Feed inlet; 123. Discharge outlet; 130. Wastewater tank;

[0039] 210. Filter cartridge; 211. Solid-liquid separation chamber; 212. Pressure plate; 220. Rotating shaft; 221. Screwdriver blades; 222. Liquid inlet; 223. Liquid outlet; 231. Baffle; 232. First support shaft; 233. Second support shaft; 234. Push rod; 235. Tension spring; 241. Receiving chamber; 242. Sealing chamber; 243. Vacuum chamber;

[0040] 300. Drive mechanism; 301. Motor; 302. Coupling; 303. Third support shaft. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0042] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] like Figures 1 to 8 As shown, the comprehensive livestock and poultry manure treatment system provided in this embodiment of the invention includes a manure dry-wet separation device. The manure dry-wet separation device is used for the dry-wet separation of manure and other materials, and includes a frame 110, a housing 120, an auger assembly, and a cleaning assembly. The frame 110 serves as the mounting base for other components, including the housing 120, which can be directly or indirectly mounted on the frame 110, forming a relatively integrated unit after installation. The housing 120 is fixedly connected to the frame 110. The housing 120 has an inlet 122 for conveying materials and an outlet 123 for discharging materials, and the interior of the housing 120 forms a material processing chamber 121 for containing materials.

[0045] A filter cartridge 210 is installed inside the material processing chamber 121, and the filter cartridge 210 is fixedly connected to the casing 120. The interior of the filter cartridge 210 and the casing 120 together form a solid-liquid separation chamber 211. One end of the solid-liquid separation chamber 211 is connected to the feed inlet 122, and the other end is connected to the discharge outlet 123. The auger assembly includes a rotating shaft 220 and auger blades 221. The rotating shaft 220 is rotatably installed inside the solid-liquid separation chamber 211 and coaxially installed inside the filter cartridge 210, and the rotating shaft 220 can rotate around its own axial direction. The auger blades 221 are spirally arranged around the central axis of the rotating shaft 220 and fixed to the outer wall of the rotating shaft 220. The auger blades 221 rotate synchronously with the rotating shaft 220 to realize continuous pushing and compression of the material. Furthermore, the manure dry-wet separation equipment also includes a pressing plate 212 and a hydraulic cylinder. The pressing plate 212 is located near the discharge outlet 123. The hydraulic cylinder is fixedly installed on the housing 120. The output end of the hydraulic cylinder is fixedly connected to the pressure plate 212 to fix the position of the pressure plate 212 so that the pressure plate 212 and the discharge port 123 have a certain gap.

[0046] Specifically, before the material is fed in, the rotating shaft 220 rotates around its own axis, driving the auger blades 221 to rotate synchronously. The material is then fed into the solid-liquid separation chamber 211 through the feed inlet 122. Under the action of the auger blades 221, the material is continuously propelled towards the discharge outlet 123. As the material is continuously conveyed to the discharge end, it is blocked by the pressure plate 212, causing the material to gradually accumulate and be subjected to high compressive force between the discharge outlet 123 and the pressure plate 212, and in the area of ​​the rotating shaft 220 near the discharge outlet 123. Under this high compressive force, the liquid in the material is forcibly squeezed out and discharged from the equipment through the filter cartridge 210. The remaining solid residue is pushed out from the gap between the pressure plate 212 and the discharge outlet 123 under continuous thrust, completing the solid residue discharge and thus the solid-liquid separation operation. During the solid-liquid separation process, when the filter cartridge 210 becomes clogged, the cleaning component can spray the liquid squeezed out of the material onto the surface of the filter cartridge 210, thereby flushing the filter cartridge 210 and effectively relieving its clogging.

[0047] In one embodiment, the auger blades 221 near the discharge port 123 have multiple liquid outlet holes 223, which are located on the edges of the auger blades 221, with their openings facing the surface of the filter cartridge 210. The rotating shaft 220 near the discharge port 123 has multiple liquid inlet holes 222, which are circumferentially arranged around the central axis of the rotating shaft 220. A baffle 231 is fixedly installed inside the rotating shaft 220, and the baffle 231 is coaxially and clearance-fitted with the rotating shaft 220. The baffle 231 and the rotating shaft 220 together form a receiving cavity 241, which is used to contain the liquid squeezed out from the material. Both the liquid outlet holes 223 and the liquid inlet holes 222 communicate with the receiving cavity 241.

[0048] Furthermore, the cleaning assembly includes a pneumatic unit, a reset unit, and a push rod 234. The pneumatic unit periodically provides power to the push rod 234, causing it to slide along its own axial direction, and the push rod 234 is coaxially disposed inside the baffle 231. It is understood that the pneumatic unit drives the push rod 234 to slide with a constant power at preset time intervals.

[0049] Specifically, during the solid-liquid separation process, when the pneumatic unit is activated, it drives the push rod 234 to slide to the left, i.e. Figure 8The left-right direction increases the area of ​​the receiving cavity 241, allowing liquid squeezed from the material to be drawn into the receiving cavity 241 through the liquid inlet 222. When the filter cartridge 210 becomes severely clogged, a large amount of liquid cannot be discharged through the filter cartridge 210 in time and accumulates in the solid-liquid separation cavity 211. As a result, when the push rod 234 slides to the left, more liquid is drawn into the receiving cavity 241 through the liquid inlet 222. When the pneumatic unit stops supplying power, the reset unit drives the push rod 234 to slide to the right to reset, reducing the area of ​​the receiving cavity 241. The liquid in the receiving cavity 241 is pushed by the push rod 234, and since the surface of the liquid inlet 222 is covered with material, the liquid is forced to spray out through the liquid outlet 223. Since the liquid outlet 223 is located near the inner surface of the filter cartridge 210, the liquid pushed out from the liquid outlet 223 directly flushes the filter cartridge 210, effectively alleviating its clogging. Furthermore, both the inlet port 222 and the outlet port 223 are equipped with one-way valves. The one-way valve of the inlet port 222 only allows liquid to flow from the solid-liquid separation chamber 211 into the receiving chamber 241 in one direction, and the one-way valve of the outlet port 223 only allows liquid to be sprayed outward from the receiving chamber 241 onto the surface of the filter cartridge 210.

[0050] When the filter cartridge 210 is not severely clogged, most of the liquid can still be discharged normally through the filter cartridge 210, with only a portion of the liquid seeping out from the material and entering the receiving cavity 241. At this time, the push rod 234's reset process still pushes this portion of liquid out through the liquid outlet 223 and discharges it out of the equipment again through the filter cartridge 210. This process is equivalent to adding an auxiliary drainage path along the inside of the rotating shaft 220 for recirculation and discharge on the basis of the original filter cartridge 210 filtration area, indirectly expanding the effective liquid outlet area and helping to improve the solid-liquid separation efficiency.

[0051] In one embodiment, the pneumatic unit includes a first support shaft 232, a second support shaft 233, and an external air extraction system. The first and second support shafts 232 and 233 are coaxially sleeved together and both are fixedly connected to the housing 120. The second support shaft 233 is coaxially rotatably disposed at one end of the rotating shaft 220 near the discharge port 123. Both the first and second support shafts 232 and 233 are coaxially slidably connected to the push rod 234. An air extraction chamber 243 is formed inside the first and second support shafts 232. The push rod 234, the baffle 231, and the second support shaft 233 together form a sealed cavity 242. The sealed cavity 242, the air extraction chamber 243, and the receiving cavity 241 are all isolated from each other. The external air extraction system is used to extract air from the air extraction chamber 243 to drive the push rod 234 to slide along its own axial direction. Specifically, the push rod 234 is coaxially provided with a sliding sealing ring at the end of the air extraction chamber 243. The sliding sealing ring is slidably engaged with the first support shaft 232 and the second support shaft 233 to ensure the airtightness of the air extraction chamber 243.

[0052] Furthermore, the reset unit includes a tension spring 235. One end of the tension spring 235 is fixedly connected to the push rod 234, and the other end is fixedly connected to the second support shaft 233. The elastic force of the tension spring 235 always causes the push rod 234 to tend to slide away from the first support shaft 232.

[0053] Specifically, the external air extraction system periodically extracts air from the air extraction chamber 243 to drive the push rod 234 to slide to the left along its own axis. Figure 8 In the left-right direction, the tension spring 235 is stretched, increasing the area of ​​the receiving cavity 241, thereby drawing the liquid squeezed out from the material into the receiving cavity 241 through the liquid inlet 222. When the external suction system stops working, the tension spring 235 gradually returns to its original position, causing the push rod 234 to slide to the right along its own axis, reducing the area of ​​the receiving cavity 241, and forcing the liquid in the receiving cavity 241 to be ejected from the liquid outlet 223 on the auger blade 221.

[0054] Specifically, the shaft 220 and auger blades 221 will experience temperature increases during prolonged operation, while the liquid entering the receiving cavity 241 can cool the shaft 220. When the liquid in the receiving cavity 241 is discharged from the outlet hole 223, it can cool the auger blades 221, thereby effectively extending the service life of the components.

[0055] In one embodiment, the fecal-sewage dry-wet separation device further includes a drive mechanism 300 for driving the rotating shaft 220 to rotate about its own axis.

[0056] Furthermore, the drive mechanism 300 includes a third support shaft 303, a motor 301, and a coupling 302. The third support shaft 303 is rotatably connected to the housing 120, and is coaxially fixed at one end of the rotating shaft 220 near the feed inlet 122. The coupling 302 is connected to the third support shaft 303 and also to the motor 301. Therefore, the motor 301 provides power to the third support shaft 303 through the coupling 302, thereby driving the rotating shaft 220 to rotate around its own axis.

[0057] In one embodiment, the liquid outlet 223 is inclined, with its inclination direction forming a certain angle with the tangent direction of the auger blade 221. Specifically, when the liquid in the receiving cavity 241 is ejected at high speed from the inclined liquid outlet 223 under pressure, the liquid jet generates an auxiliary driving force on the auger blade 221 in the same direction as the rotation of the auger blade 221, further causing the auger blade 221 and the rotating shaft 220 to continue rotating in their normal rotation direction. Therefore, it can effectively reduce the load on the motor 301, play a partial self-driving role, and reduce energy consumption. It can be understood that the more severe the blockage of the filter cartridge 210, the more liquid enters the receiving cavity 241, the higher the jet pressure, and the greater the speed and flow rate of the ejected liquid, thereby generating a stronger auxiliary driving force, which can further alleviate the blockage of the filter cartridge 210.

[0058] In one embodiment, the fecal-sewage dry-wet separation device also includes a wastewater tank 130 for collecting liquid filtered by the filter cartridge 210.

[0059] This invention also provides a comprehensive treatment method for livestock and poultry manure, used to implement the comprehensive treatment system for livestock and poultry manure in any of the above embodiments, comprising the following steps:

[0060] S100, start motor 301, drive shaft 220 to rotate around its own axis, and drive auger blades 221 to rotate synchronously.

[0061] S200, the material is fed into the solid-liquid separation chamber 211 from the feed port 122, and the screw conveyor blades 221 push the material toward the discharge port 123 to perform solid-liquid separation.

[0062] S210, under the continuous thrust of the auger blades 221, the material is squeezed in the gap between the pressure plate 212 and the discharge port 123, thus achieving solid-liquid separation.

[0063] S220, the liquid is filtered through the filter cartridge 210 and collected in the wastewater tank 130; the solid residue is discharged from the gap between the pressure plate 212 and the discharge port 123.

[0064] S300, the external air extraction system periodically drives the push rod 234 to slide to the left along its own axis, that is... Figure 8 In the left-right direction, the tension spring 235 is stretched, and the liquid squeezed out from the material is drawn into the receiving cavity 241 through the liquid inlet hole 222 on the rotating shaft 220 (synchronized with S200-S220).

[0065] S310, when the filter cartridge 210 is severely clogged, more liquid is drawn into the receiving chamber 241; when the clog is less severe, the amount of liquid drawn in decreases.

[0066] S320, the external air extraction system stops working, the tension spring 235 returns to its original length, driving the push rod 234 to slide to the right to reset, i.e. Figure 8 The liquid in the accommodating cavity 241 is pushed out through the liquid outlet 223 on the screw conveyor blade 221 in the left and right directions, thus flushing the filter cartridge 210 and effectively solving the problem of filter cartridge 210 clogging.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A comprehensive treatment system for livestock and poultry manure, comprising a manure dry-wet separation device for separating the manure into dry and wet components, characterized in that, The wastewater dry-wet separation equipment includes: The machine casing has an inlet for conveying materials and an outlet for discharging materials; the inside of the machine casing forms a material handling chamber. The filter cartridge is installed inside the material processing chamber and is fixedly connected to the machine casing. The interior of the filter cartridge and the machine casing together form a solid-liquid separation chamber. One end of the solid-liquid separation chamber is connected to the feed inlet and the other end is connected to the discharge outlet. The auger assembly includes a rotating shaft and auger blades; the rotating shaft is rotatably disposed in the solid-liquid separation chamber and coaxially disposed inside the filter cartridge; the auger blades are spirally arranged around the central axis of the rotating shaft and fixed to the outer wall of the rotating shaft; The pressure plate is positioned near the discharge port, with a gap between the pressure plate and the discharge port; the rotating shaft can rotate around its own axis, allowing the auger blades to transport materials and, in conjunction with the pressure plate, to squeeze the materials to achieve solid-liquid separation. The cleaning component periodically sprays liquid onto the surface of the filter cartridge to flush it when the cartridge becomes clogged. A liquid outlet hole is provided on the auger blades near the discharge port, located on the edge of the auger blades, with the opening facing the surface of the filter cartridge. A liquid inlet hole is provided on the rotating shaft near the discharge port. A baffle is fixedly installed inside the rotating shaft, and the baffle is coaxial with the rotating shaft with clearance fit. The baffle and the rotating shaft together form a receiving cavity for containing liquid, and both the liquid outlet hole and the liquid inlet hole are connected to the receiving cavity. When the filter cartridge is severely clogged, more liquid enters the receiving cavity; when the filter cartridge is not severely clogged, less liquid enters the receiving cavity. The cleaning assembly includes a pneumatic unit, a reset unit, and a push rod. The pneumatic unit provides power to the push rod periodically. The push rod can slide along its own axis and is coaxially disposed inside the baffle. When the pneumatic unit drives the push rod to slide along its own axis, liquid is filled into the receiving cavity. When the reset unit resets the push rod, the liquid in the receiving cavity is sprayed toward the filter cartridge through the liquid outlet. The pneumatic unit includes a first support shaft, a second support shaft, and an external air extraction system. The first and second support shafts are coaxially sleeved together and both are fixedly connected to the housing. The second support shaft is coaxially rotatably mounted at the end of the rotating shaft near the discharge port. Both the first and second support shafts are coaxially slidably connected to the push rod. An air extraction chamber is formed inside the first and second support shafts. The push rod, the baffle, and the second support shaft together form a sealed chamber. The sealed chamber, the air extraction chamber, and the receiving chamber are all isolated from each other. The external air extraction system is used to extract air from the air extraction chamber to drive the push rod to slide along its own axial direction. The reset unit includes a tension spring, one end of which is fixedly connected to the push rod and the other end is fixedly connected to the second support shaft. The elastic force of the tension spring always causes the push rod to slide away from the first support shaft. One-way valves are provided in both the liquid inlet and the liquid outlet.

2. The comprehensive treatment system for livestock and poultry manure according to claim 1, characterized in that, It also includes a drive mechanism, which is used to drive the shaft to rotate around its own axis.

3. The comprehensive treatment system for livestock and poultry manure according to claim 2, characterized in that, The drive mechanism includes a third support shaft, a motor, and a coupling. The third support shaft is rotatably connected to the machine housing and is coaxially fixed at one end of the rotating shaft near the feed inlet. The coupling is connected to the third support shaft, and the motor provides power to the third support shaft through the coupling.

4. The comprehensive treatment system for livestock and poultry manure according to claim 1, characterized in that, The liquid outlet is inclined.

5. The comprehensive treatment system for livestock and poultry manure according to claim 1, characterized in that, It also includes a wastewater tank, which is used to collect the liquid after it has been filtered by the filter cartridge.

6. A comprehensive treatment method for livestock and poultry manure, used to implement the comprehensive treatment system for livestock and poultry manure as described in any one of claims 1-5, characterized in that, Includes the following steps: S100, the shaft rotates around its own axis, driving the auger blades to rotate synchronously; S200: Material is fed into the solid-liquid separation chamber from the feed inlet, and the auger blades push the material toward the discharge outlet for solid-liquid separation. S210, the material accumulates near the discharge port, and the material is squeezed in the gap between the pressure plate and the discharge port to achieve solid-liquid separation; S220, the liquid is filtered through the filter cartridge; solid residue is discharged from the gap between the pressure plate and the outlet. In the S300, when the filter cartridge becomes clogged, the cleaning component periodically sprays liquid onto the surface of the filter cartridge to flush it and relieve the clogging.

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