Integrated treatment system for breeding fecal pollution

Abstract

The application relates to the field of solid-liquid separation equipment for breeding fecal pollution, and discloses a breeding fecal pollution integrated treatment system, which comprises a solid-liquid separation device, the solid-liquid separation device comprises first positioning cylinders and second positioning cylinders which are fixedly arranged, one end of the top of the first positioning cylinders is provided with a fecal pollution inlet, one end of the bottom of the second positioning cylinders is provided with a fecal pollution outlet, a movable filter device is movably arranged between the first positioning cylinders and the second positioning cylinders, and a water collecting pool is arranged below the movable filter device. A plurality of filter screen assemblies are arranged in the movable filter device, water inlet devices and fecal pollution isolation and drainage devices are correspondingly arranged on the outer side and the inner side of the movable filter device, the water inlet devices and the fecal pollution isolation and drainage devices are arranged at a distance of one filter screen assembly, half of the filter screen assemblies are used for solid-liquid separation, the other half of the filter screen assemblies are used for backwashing, the two parts of the filter screen assemblies are alternately used, backwashing and blockage removal are realized without stopping solid-liquid separation, and therefore the treatment efficiency of breeding fecal pollution is improved.

Description

Technical Field

[0001] This application relates to the technical field of solid-liquid separation equipment for livestock manure, and in particular to an integrated treatment system for livestock manure. Background Technology

[0002] In the field of livestock manure treatment, efficient solid-liquid separation is one of the core technologies in the pretreatment stage. Livestock manure is typically characterized by high moisture content, high organic matter concentration, and large solid particle content. Traditional treatment methods such as natural sedimentation or simple screening are insufficient to meet the requirements of treatment efficiency and resource utilization. As a highly efficient solid-liquid separation device, the spiral filter, through the synergistic effect of spiral extrusion and screen filtration, has become a key component in the integrated livestock manure treatment system. Its working principle is based on the material being squeezed by the gradually decreasing pitch under the driving force of the rotating spiral shaft. The liquid is discharged through the precision screen, while the solid is intercepted and transported to the outlet, thus achieving solid-liquid separation. This equipment has a compact structure and strong processing continuity, and is especially suitable for high-moisture material treatment scenarios. It can effectively reduce the moisture content of manure, providing stable pretreatment for subsequent anaerobic fermentation, aerobic composting, or resource utilization (such as the production of organic fertilizer), reducing the load on downstream treatment, and promoting the reduction and resource utilization of livestock manure.

[0003] Because solid-liquid separation of livestock manure requires the synergistic effect of screw extrusion and screen filtration, the filter screen is easily clogged, thus requiring frequent backwashing to clear the blockage. For example, Chinese invention patent application number 2022100551278 disclosed a solid-liquid separation device for manure treatment on March 18, 2022, which includes a machine body, a feeding device, an inclined screen, a screw extrusion solid-liquid separator, and a primary filtration device. It has a spray nozzle on the outside of the filter cylinder, from which gas is sprayed to clear the blockage. However, during the clearing process, solid-liquid separation needs to be stopped, which reduces the treatment efficiency of livestock manure. Moreover, inside the filter cylinder, solid manure is squeezed together under the conveying pressure of the screw blades, forming an obstruction. This makes it difficult for the airflow sprayed from the outside of the filter cylinder to reach the inside of the filter cylinder, resulting in poor clearing effect. Summary of the Invention

[0004] This application proposes an integrated treatment system for livestock manure, which has the advantages of high efficiency and good effect in solid-liquid separation treatment of livestock manure, in order to solve the problems of low efficiency and poor effect of existing spiral separation equipment in solid-liquid separation treatment of livestock manure.

[0005] To achieve the above objectives, this application adopts the following technical solution: an integrated treatment system for livestock manure, comprising: A solid-liquid separation device includes a first positioning cylinder and a second positioning cylinder that are fixedly installed. The first positioning cylinder has an inlet at its top end, through which the wastewater to be separated is added. The second positioning cylinder has a outlet at its bottom end, through which the solid wastewater after separation is discharged. A conveyor belt is located below the outlet, which picks up the solid wastewater after separation and transports it to the next stage of the treatment system. A movable filter device is movably installed between the first and second positioning cylinders. The movable filter device is driven to move by a servo cylinder located outside the first positioning cylinder. The movable filter device includes multiple equally spaced filter screen components, and the number of filter screen components is set to an even number, i.e., the number of filter screens can be two, four, eight, etc. Wastewater in the wastewater flows from the inside to the outside of the filter screen components, achieving solid-liquid separation. A collection tank is located below the movable filter device to collect the wastewater after solid-liquid separation. The water inlet device and the wastewater isolation and drainage device are fixedly installed together with the first positioning cylinder and the second positioning cylinder. The number of water inlet devices and wastewater isolation and drainage devices is half the number of filter screen assemblies. The water inlet devices and wastewater isolation and drainage devices are respectively located on the outer and inner sides of the filter screen assemblies. The water inlet devices and wastewater isolation and drainage devices are positioned along the axial direction of the movable filter device at intervals of one filter screen assembly. When the filter screen assemblies are moved relative to the first positioning cylinder, the second positioning cylinder, the water inlet devices, and the wastewater isolation and drainage devices, half of the filter screen assemblies can be positioned between the water inlet devices and the wastewater isolation and drainage devices. Between the devices, backwash water is supplied from the water inlet device on the outside of the filter assembly. The backwash water flows from the outside of the filter assembly to the inside of the water inlet device, and then flows out from the sewage isolation and drainage device. The sewage isolation and drainage device isolates the fecal matter in the mobile filter device to ensure that backwashing can be carried out effectively. Meanwhile, the other half of the filter assembly normally performs solid-liquid separation of fecal matter. One half of the filter assembly is used for solid-liquid separation, and the other half of the filter assembly is used for backwashing. The two parts of the filter assembly work alternately. Backwashing and unclogging are carried out without stopping solid-liquid separation. The wastewater after backwashing enters the sewage isolation and drainage device and is discharged separately. The screw conveyor is located between the sewage inlet and the sewage outlet, inside the sewage isolation and drainage device. The screw conveyor squeezes and transports the sewage from the sewage inlet to the sewage outlet.

[0006] Furthermore, the first positioning cylinder, the second positioning cylinder, and the water inlet device are all supported and fixed by support legs, thereby stabilizing the solid-liquid separation device and ensuring that solid fecal matter and sewage in the fecal matter can be stably separated by the solid-liquid separation device. Side covers are fixedly installed on the opposite sides of the first positioning cylinder and the second positioning cylinder.

[0007] Furthermore, the screw conveyor includes a positioning shaft rotatably connected to two side covers. A screw blade is fixedly installed on the positioning shaft. A motor that drives the positioning shaft to rotate is fixedly installed on one of the side covers. The motor drives the positioning shaft to rotate the screw blade, thereby pushing the feces inside the solid-liquid separation device.

[0008] Furthermore, the mobile filtration device includes a first slide cylinder movably fitted inside a first positioning cylinder and a second slide cylinder movably fitted inside a second positioning cylinder. The filter screen assembly is fixedly disposed between the first and second slide cylinders. A linkage block is fixedly installed on the outer side of the first slide cylinder. The linkage block is close to one end of the filter screen assembly and is fixedly connected to one end of the piston shaft of the servo cylinder. The first positioning cylinder supports the first slide cylinder at one end of the filter screen assembly, and the second positioning cylinder supports the second slide cylinder at the other end of the filter screen assembly. This allows the mobile filtration device to move stably relative to the water inlet device and the sewage isolation and drainage device under the drive of the piston shaft of the servo cylinder. This allows control of one half of the filter screen assembly in the mobile filtration device to be located between the water inlet device and the sewage isolation and drainage device. One end of the bottom of the second slide cylinder has a slot that connects to the sewage outlet, facilitating the entry of solid matter in the sewage into the sewage outlet and its discharge.

[0009] Furthermore, the filter assembly includes a water filter screen for solid-liquid separation in fecal waste. Solid fecal waste is located inside the water filter screen, while wastewater flows outward through the screen and falls into the collection tank. Annular positioning components are fixedly fitted at both ends of the water filter screen. Multiple reinforcing ribs are fixedly arranged between adjacent annular positioning components on the outside of the water filter screen, and these ribs are arranged in a circumferential array on the outside of the screen. Annular connecting components are fixedly fitted between adjacent annular positioning components. The two outermost annular positioning components are fixedly connected to one side of the first and second slide cylinders, respectively. Two linkage blocks are fixedly installed on the outside of the first slide cylinder. These linkage blocks are located at the end of the first slide cylinder near the filter assembly, and are fixedly connected to one end of the piston shaft of each of the two servo cylinders. Through the annular positioning components and reinforcing ribs at both ends of the water filter screen, the filter assembly achieves high overall stability and can withstand the compression of the fecal waste inside.

[0010] Furthermore, the distance between two adjacent water inlet devices is the same as the length of the filter screen. The position of each sewage isolation and drainage device corresponds one-to-one with the position of each water inlet device. When the control servo cylinder drives the piston shaft to move the linkage block, the first sliding cylinder, the annular positioning component, the reinforcing rib, and the filter screen as a whole relative to the first positioning cylinder and the second positioning cylinder, half of the filter screen is positioned between the water inlet device and the sewage isolation and drainage device so that the filter screen can be backwashed, while the other half of the filter screen is exposed so that the filter screen can perform solid-liquid separation of fecal matter.

[0011] Furthermore, the water inlet device includes two outer annular sleeves, which are movably fitted onto two adjacent annular connecting members. An outer annular partition is fixedly connected to the outer side between the two outer annular sleeves. The outer annular sleeves and the outer annular partition are integrally formed. The inner side of the outer annular partition does not contact the outer side of the annular connecting member. Multiple positioning guides are fixedly fitted onto the side of the outer annular sleeve away from the outer annular partition. The number of positioning guides is not less than two, and the multiple positioning guides are arranged in a circumferential array on the outer annular sleeve. A connecting positioning section is provided on the outer annular sleeve. The water inlet groove of the conduit and the inner cavity of the outer annular partition is connected to the inner cavity of two adjacent outer annular partitions through the water inlet groove. The outermost outer annular sliding sleeve is connected to a water conveying device. The inner side of the outer annular sliding sleeve is movably connected to the outer side of the two annular connecting parts in the two filter screen assemblies. During backwashing, the seal formed by the inner side of the two outer annular sliding sleeves and the outer side of the two annular connecting parts in the filter screen assembly allows the backwash water delivered to the inner side of the outer annular sliding sleeve by the water conveying device to act on the surface of the filter screen, flow from the outer side of the filter screen to the inner side, and remove solids attached to the inner side of the filter screen.

[0012] Furthermore, the water conveying device includes an L-shaped conduit fixedly sleeved with the outer annular sliding sleeve. The end of the L-shaped conduit away from the outer annular sliding sleeve is connected to a main water pipe. The main water pipe is movably sleeved on the outside of the first sliding sleeve. The top end of the main water pipe is connected to a water supply pipe. When cleaning the filter screen, backwash water is introduced through the water supply pipe. After the backwash water enters the main water pipe, it flows into each L-shaped conduit and then into the first outer annular sliding sleeve. It then flows from the outside of the filter screen to the inside of the filter screen inside the outer annular sliding sleeve, thereby flushing the filter screen and cleaning the blockage.

[0013] Furthermore, the sewage isolation and drainage device includes two inner annular sliding sleeves, the distance between the two inner annular sliding sleeves being the same as the distance between the two outer annular sliding sleeves, and the positions of the two inner annular sliding sleeves corresponding to the positions of the two outer annular partitions. A water-guiding sliding sleeve is fixedly installed on the outer side between the two inner annular sliding sleeves, and the outer side of the water-guiding sliding sleeve is movably connected to the inner side of the annular connector. The water-guiding sliding sleeve has several circumferential and linear arrays of water-guiding grooves. The backwash water flowing through the filter screen carries the sewage blockage through the water-guiding grooves into the inner side of the water-guiding sliding sleeve. An inner annular partition is fixedly installed on the inner side between the two inner annular sliding sleeves. A drain pipe is connected between the inner annular sliding sleeves of two adjacent sewage isolation and drainage devices. In the outermost sewage isolation and drainage device, the end of the drain pipe away from the inner annular sliding sleeve extends out... The outer side of the side cover is connected to a main drain pipe, and the bottom middle of the main drain pipe is connected to a water outlet pipe. After the backwash water enters the inner side of the water guide sleeve, it flows through the drain pipe to the inside of the main drain pipe and is discharged from the water outlet pipe. The water outlet pipe can be connected to the inside of the first positioning cylinder through a sludge pump, so that the backwashed sewage can be added back into the inside of the first positioning cylinder for solid-liquid separation again. Multiple positioning rods are fixedly connected between the inner annular sleeves of two adjacent sewage isolation and drainage devices. The multiple positioning rods are circumferentially distributed on the inner annular sleeves, and the positioning rods are staggered with the drain pipes. One end of the positioning rod in the outermost sewage isolation and drainage device is fixedly connected to the inner side of one of the side covers. The fixed connection of the positioning rods keeps the sewage isolation and drainage device in the mobile filter device stable.

[0014] Furthermore, an annular limiting block is fixedly installed inside the second positioning cylinder between the spiral blade and the sewage outlet, and the inner diameter of the annular limiting block decreases uniformly from the end facing the motor to the end facing the sewage outlet. An annular positioning block is fixedly installed inside the first positioning cylinder, and a through groove is opened on the annular positioning block to connect with the sewage inlet. The inner side of the annular positioning block is movably connected to the outer side of the spiral blade. With the setting of the annular limiting block and the annular positioning block, after the sewage is added through the sewage inlet, the positioning shaft driven by the motor drives the spiral blade to rotate, so that the sewage is squeezed between the annular limiting block and the annular positioning block. The sewage in the sewage flows to the outside of the mobile filter device through the filter screen and falls into the inside of the collection tank, while the solid sewage falls from the groove and the sewage outlet after passing through the annular limiting block. A conveyor belt is set below the sewage outlet, and the conveyor belt transports the solid sewage to the next stage of the sewage treatment system.

[0015] The beneficial effects of this invention are as follows: 1. This application provides an integrated treatment system for livestock manure, which utilizes a mobile filtration device with multiple filter screen components. A water inlet device and a wastewater drainage device are respectively installed on the outer and inner sides of the mobile filtration device. These devices are spaced apart from the filter screen components, allowing half of the filter screen components to be used for solid-liquid separation and the other half for backwashing. The two parts of the filter screen components work alternately, enabling backwashing and cleaning without interrupting solid-liquid separation. This improves the treatment efficiency of livestock manure.

[0016] 2. A water inlet device is installed on the outside of the filter screen assembly, and a sewage isolation and drainage device is installed on the inside to isolate solid fecal waste. After the backwash water enters the water inlet device, it backwashes the filter screen assembly inside the water inlet device. The backwashed wastewater enters the sewage isolation and drainage device and is discharged separately, without affecting the fecal waste that is undergoing solid-liquid separation. This ensures the effective implementation of backwashing and thus keeps the solid-liquid separation of fecal waste highly efficient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Schematic diagram of the middle section of the solid-liquid separation device; Figure 3 for Figure 2 A schematic diagram of the structure of a mobile filtration device; Figure 4 for Figure 3 A schematic diagram of the structure of one of the filter components; Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B; Figure 6 for Figure 1 A schematic diagram of the structure of a mobile filtration device; Figure 7 for Figure 2 A schematic diagram of the structure of one of the water inlet devices; Figure 8 for Figure 7 A magnified schematic diagram of the structure at point C; Figure 9 for Figure 1 A schematic diagram of the structure of one of the water inlet devices; Figure 10 for Figure 1 A magnified schematic diagram of the structure at point A in the diagram; Figure 11 for Figure 2 A schematic diagram of the structure of one of the sewage separation and drainage devices; Figure 12 for Figure 1 A schematic diagram of the complete structure of the central partition sewage drainage device.

[0018] In the diagram: 1. First positioning cylinder; 101. Sewage inlet; 2. Second positioning cylinder; 201. Sewage outlet; 3. Side cover; 4. Movable filter device; 401. First sliding cylinder; 402. Second sliding cylinder; 4021. Groove; 403. Filter screen assembly; 4031. Water filter screen; 4032. Annular positioning component; 4033. Reinforcing rib; 4034. Annular connecting component; 404. Linkage block; 5. Servo cylinder; 6. Water collection tank; 7. Water inlet device; 701. Outer annular sliding sleeve; 702. Outer annular partition; 703. Positioning guide pipe; 704. Water inlet trough; 8. Water conveying device; 801. L-shaped guide pipe; 802. Water main pipe; 803. Water conveying pipe; 9. Sewage isolation and drainage device; 901. Inner annular sliding sleeve; 902. Water guiding sliding sleeve; 903. Water guiding trough; 904. Inner annular partition; 905. Drainage pipe; 906. Positioning rod; 10. Drainage main pipe; 11. Water outlet pipe; 12. Positioning rotating shaft; 13. Motor; 14. Spiral blade; 15. Annular limit block; 16. Annular positioning block; 17. Conveyor belt. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-2An integrated treatment system for livestock manure includes a solid-liquid separation device. The solid-liquid separation device includes a first positioning cylinder 1 and a second positioning cylinder 2, which are fixedly installed. The first positioning cylinder 1 and the second positioning cylinder 2 are supported and fixed by support legs. Side covers 3 are fixedly installed on opposite sides of the first positioning cylinder 1 and the second positioning cylinder 2. The top of the first positioning cylinder 1 is provided with a sewage inlet 101 near the side cover 3. The bottom of the second positioning cylinder 2 is provided with a sewage outlet 201 near the other side cover 3. A movable filter device 4 is movably arranged between the first positioning cylinder 1 and the second positioning cylinder 2. A servo cylinder 5 is fixedly installed on the outside of the first positioning cylinder 1 to drive the movable filter device 4 to move between the first positioning cylinder 1 and the second positioning cylinder 2. A water collection tank 6 is arranged below the movable filter device 4. A water outlet pipe (obscured in the figure, the water outlet pipe is used to discharge the sewage collected in the water collection tank 6 after manure separation, which will not be described in detail here) is connected to the bottom of the rear side of the water collection tank 6.

[0021] like Figures 1-6 The mobile filtration device 4 includes a first sliding cylinder 401 movably fitted inside a first positioning cylinder 1, and a second sliding cylinder 402 movably fitted inside a second positioning cylinder 2. The bottom of the second sliding cylinder 402 has a slot 4021 on the side away from the first sliding cylinder 401, which communicates with a drain outlet 201. Multiple equally spaced filter screen assemblies 403 are arranged between the first sliding cylinder 401 and the second sliding cylinder 402. The number of filter screen assemblies 403 is set to an even number. Each filter screen assembly 403 includes a water filter screen 4031, which is used for solid-liquid separation in fecal waste. Solid fecal waste is inside the water filter screen 4031, while wastewater flows outward through the water filter screen 4031 and falls into the collection tank 6. Annular positioning elements 4032 are fixedly fitted at both ends of the water filter screen 4031, and adjacent annular positioning elements 4032 are fixedly spaced apart. Multiple reinforcing ribs 4033 are fixedly arranged on the outside of the filter screen 4031, and the multiple reinforcing ribs 4033 are arranged in a circumferential array on the outside of the filter screen 4031. An annular connecting piece 4034 is fixedly fitted between two adjacent annular positioning pieces 4032. The two outermost annular positioning pieces 4032 are fixedly connected to one side of the first slide cylinder 401 and the second slide cylinder 402, respectively. Two linkage blocks 404 are fixedly installed on the outside of the first slide cylinder 401. The two linkage blocks 404 are close to one end of the filter screen assembly 403, and the two linkage blocks 404 are fixedly connected to one end of the piston shaft of the two servo cylinders 5, respectively. The piston shaft is driven by the servo cylinders 5 to move the linkage blocks 404, the first slide cylinder 401, the annular positioning pieces 4032, the reinforcing ribs 4033 and the filter screen 4031 as a whole relative to the first positioning cylinder 1 and the second positioning cylinder 2.

[0022] A water inlet device 7 is fixedly disposed between the first positioning cylinder 1 and the second positioning cylinder 2, located outside the filter screen assembly 403. The number of water inlet devices 7 is half the number of filter screen assemblies 403, and the spacing between two adjacent water inlet devices 7 is the same as the length of the filter screen 4031. Figures 1-2 , Figures 4-10 The water inlet device 7 includes two outer annular sleeves 701, which are movably fitted onto two adjacent annular connectors 4034. An outer annular partition 702 is fixedly connected to the outer side between the two outer annular sleeves 701. The outer annular sleeves 701 and the outer annular partition 702 are integrally formed. The inner side of the outer annular partition 702 does not contact the outer side of the annular connector 4034. Multiple positioning guide tubes 703 are fixedly fitted onto the side of the outer annular sleeve 701 away from the outer annular partition 702. The number of positioning guide tubes 703 is not less than two, and the multiple positioning guide tubes 703 are arranged in a circumferential array on the outer annular sleeve 701. A water inlet groove 704 is opened on the outer annular sleeve 701 to connect the positioning guide tubes 703 and the inner cavity of the outer annular partition 702. The inner cavities of two adjacent outer annular partitions 702 are connected to... The water inlet trough 704 is connected to the outermost annular sleeve 701, which is connected to a water conveying device 8. The water conveying device 8 includes an L-shaped conduit 801 fixedly sleeved with the outer annular sleeve 701. The end of the L-shaped conduit 801 away from the outer annular sleeve 701 is connected to a main water pipe 802. The main water pipe 802 is movably sleeved on the outside of the first slide cylinder 401. The top end of the main water pipe 802 is connected to a water conveying pipe 803. When cleaning the filter screen 4031, backwash water is introduced through the water conveying pipe 803. After the backwash water enters the main water pipe 802, it flows into each L-shaped conduit 801, and then enters the first outer annular sleeve 701 from each L-shaped conduit 801. Then, it flows from the outside of the filter screen 4031 to the inside of the filter screen 4031 inside the outer annular sleeve 701, thereby flushing the filter screen 4031 to clean it.

[0023] The movable filter device 4 has a movable dirt-blocking and drainage device 9 inside. The number of dirt-blocking and drainage devices 9 is the same as the number of water inlet devices 7, and the position of each dirt-blocking and drainage device 9 corresponds one-to-one with the position of each water inlet device 7. Figure 2 , Figures 11-12 The sewage isolation and drainage device 9 includes two inner annular sliding sleeves 901, the distance between the two inner annular sliding sleeves 901 and the... Figure 7 The two outer annular sliding sleeves 701 are spaced at the same distance, and the positions of the two inner annular sliding sleeves 901 correspond to the positions of the two outer annular partitions 702, respectively. A water-guiding sliding sleeve 902 is fixedly installed on the outer side between the two inner annular sliding sleeves 901, and the outer side of the water-guiding sliding sleeve 902 is... Figure 4 The inner side of the annular connector 4034 is movably connected, and the water guide sleeve 902 is provided with several circular and linear arrays of water guide grooves 903, through which the water flows Figure 4The backwash water from the middle filter screen 4031 carries fecal debris and blockages through the guide channel 903 into the inner side of the guide sleeve 902. An inner annular partition 904 is fixedly installed on the inner side between the two inner annular sleeves 901, isolating the space formed by the two inner annular sleeves 901, the guide sleeve 902, and the inner annular partition 904 from the solid fecal debris inside the filter screen 4031. This ensures that the backwash water can flow through the filter screen 4031 outside the guide sleeve 902 without being affected by the compression of the solid fecal debris undergoing solid-liquid separation. A drain pipe 905 connects the inner annular sleeves 901 in two adjacent sewage isolation and drainage devices 9. Figures 1-2 , Figures 11-12 In the outermost sewage drainage device 9, the drain pipe 905 extends from the outer side of the side cover 3 away from the inner annular sliding sleeve 901 and is connected to the main drain pipe 10. The bottom middle of the main drain pipe 10 is connected to the outlet pipe 11. After the backwash water enters the inner side of the water guiding sliding sleeve 902, it flows through the drain pipe 905 to the inside of the main drain pipe 10 and is discharged from the outlet pipe 11. The outlet pipe 11 can be connected to the inside of the first positioning cylinder 1 through the sludge pump, so that the backwashed sewage can be added back into the inside of the first positioning cylinder 1 for solid-liquid separation again.

[0024] Multiple positioning rods 906 are fixedly connected between the inner annular sliding sleeves 901 of two adjacent sewage isolation and drainage devices 9. The multiple positioning rods 906 are arranged in a circumferential array on the inner annular sliding sleeves 901, and the positioning rods 906 are staggered with the drain pipes 905. One end of the positioning rod 906 in the outermost sewage isolation and drainage device 9 is fixedly connected to the inner side of one of the side covers 3. The fixed connection of the positioning rods 906 is used to keep the sewage isolation and drainage device 9 in the mobile filter device 4 in a stable state.

[0025] Please continue reading. Figures 1-2 A positioning shaft 12 is rotatably connected between the two side covers 3 via bearings. The positioning shaft 12 is driven to rotate by a motor 13 mounted on the other side cover 3. A spiral blade 14 is fixedly mounted on the positioning shaft 12, and the outer side of the spiral blade 14 is connected to the bearing. Figure 2 and Figure 11The inner side of the inner annular partition 904 is movably connected. An annular limiting block 15 is movably installed inside the second positioning cylinder 2, located between the spiral blade 14 and the drain outlet 201. The outer side of the annular limiting block 15 is fixedly connected to the inner side of the second sliding cylinder 402. The annular limiting block 15 is movably sleeved with the drain pipe 905 and the positioning rod 906. The drain pipe 905 and the positioning rod 906 limit the rotation direction of the annular limiting block 15, ensuring that the slot 4021 on the second sliding cylinder 402, which is fixedly connected to the annular limiting block 15, always faces downwards, thus ensuring that solid waste can be discharged through the slot 4021 to the drain outlet 201. Furthermore, the inner diameter of the annular limiting block 15 decreases uniformly from the end facing the motor 13 to the end facing the sewage outlet 201. An annular positioning block 16 is fixedly installed inside the first positioning cylinder 1. The annular positioning block 16 has a through groove communicating with the sewage inlet 101, and the inner side of the annular positioning block 16 is movably connected to the outer side of the spiral blade 14. Through the arrangement of the annular limiting block 15 and the annular positioning block 16, after the sewage is added through the sewage inlet 101, the motor 13 drives the positioning shaft 12 to rotate the spiral blade 14, causing the sewage to be squeezed between the annular limiting block 15 and the annular positioning block 16. The sewage in the sewage is then... Figures 3-4 The water filter screen 4031 flows to the outside of the mobile filter device 4 and falls into the inside of the collection tank 6, while the solid waste falls from the trough 4021 and the sewage outlet 201 after passing through the annular limiting block 15. A conveyor belt 17 is provided below the sewage outlet 201, which transports the solid waste to the next stage of the waste treatment system.

[0026] In operation, the servo cylinder 5 first drives the piston shaft to move the first slide cylinder 401, thereby moving the mobile filter device 4. This exposes half of the filter screen 4031 in the mobile filter device 4, while the other half is located between the water inlet device 7 and the sewage drainage device 9. Wastewater is added through the sewage inlet 101. Then, the motor 13 drives the positioning shaft 12 to rotate the spiral blades 14, causing the wastewater entering the first positioning cylinder 1 to be transported from the sewage inlet 101 towards the sewage outlet 201. Wastewater flows from the inside of one half of the filter screen 4031 to the outside and falls into the collection tank 6. Solids in the wastewater fall onto the conveyor belt 17 through the sewage outlet 201. When the water output from one half of the filter screen 4031 decreases significantly, indicating that the inside of the filter screen 4031 is blocked by solids in the wastewater, the servo cylinder 5 is activated to drive the piston shaft to move the first slide cylinder 401. This causes the mobile filtration device 4 to move relative to the water inlet device 7 and the sewage drainage device 9, moving half of the filter screen assembly 403 between the water inlet device 7 and the sewage drainage device 9. Backwash water is then transported through the water supply pipe 803. The backwash water enters the inner side of one of the outer annular baffles 702 through the main water guide pipe 802 and the L-shaped guide pipe 801, and enters all the outer annular baffles 702 through the positioning guide pipe 703 between two adjacent outer annular sliding sleeves 701. The backwash water flows from the outside of the filter screen 4031 in the outer annular baffle 702 to the inside, washing away the solid dirt accumulated on the inside of the filter screen 4031. The backwash water carries away this dirt through the drain pipe 905, the main drain pipe 10 and the outlet pipe 11. The other half of the filter screen 4031 is exposed. At this time, the other half of the exposed filter screen 4031 is used to continue the solid-liquid separation of fecal waste. This process is repeated alternately without stopping the machine.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated treatment system for livestock manure, characterized in that, include: A solid-liquid separation device includes a first positioning cylinder and a second positioning cylinder that are fixedly installed. The first positioning cylinder has a sludge inlet at one end of its top and a sludge outlet at one end of its bottom. A conveyor belt is installed below the sludge outlet. A movable filter device is movably installed between the first positioning cylinder and the second positioning cylinder. The movable filter device is driven to move by a servo cylinder installed outside the first positioning cylinder. The movable filter device includes multiple filter screen components arranged at equal intervals, and the number of filter screen components is set to an even number. A water collection tank is installed below the movable filter device. The number of water inlet devices and sewage isolation and drainage devices is half the number of filter screen assemblies. The water inlet devices and sewage isolation and drainage devices are respectively located on the outside and inside of the filter screen assemblies. The water inlet devices and sewage isolation and drainage devices are set along the axial direction of the mobile filter device at intervals of one filter screen assembly. Half of the filter screen assembly is used for solid-liquid separation, and the other half of the filter screen assembly is used for backwashing. The two parts of the filter screen assembly are used alternately. Backwashing and unclogging are performed without stopping solid-liquid separation. The sewage after backwashing enters the sewage isolation and drainage device and is discharged separately. A screw conveyor is installed between the sewage inlet and the sewage outlet to squeeze and transport the sewage from the sewage inlet to the sewage outlet.

2. The integrated treatment system for livestock manure as described in claim 1, characterized in that, The first positioning cylinder, the second positioning cylinder, and the water inlet device are all supported and fixed by support legs, and side covers are fixedly installed on the opposite sides of the first positioning cylinder and the second positioning cylinder.

3. The integrated livestock manure treatment system according to claim 2, characterized in that, The spiral conveying device includes a positioning shaft rotatably connected to two side covers. Spiral blades are fixedly mounted on the positioning shaft, and a motor that drives the positioning shaft to rotate is fixedly mounted on one of the side covers.

4. The integrated treatment system for livestock manure according to claim 2, characterized in that, The mobile filtration device includes a first slide cylinder movably fitted inside a first positioning cylinder and a second slide cylinder movably fitted inside a second positioning cylinder. A filter screen assembly is fixedly disposed between the first slide cylinder and the second slide cylinder. A linkage block is fixedly installed on the outer side of the first slide cylinder. The linkage block is close to one end of the filter screen assembly and is fixedly connected to one end of the piston shaft of the servo cylinder. A slot for communicating with a sewage outlet is opened at one end of the bottom of the second slide cylinder.

5. The integrated livestock manure treatment system according to claim 4, characterized in that, The filter assembly includes a water filter screen. Both ends of the water filter screen are fixedly fitted with annular positioning components. Multiple reinforcing ribs are fixedly arranged between two adjacent annular positioning components, located on the outer side of the water filter screen. These reinforcing ribs are arranged in a circumferential array on the outer side of the water filter screen. Annular connecting components are fixedly fitted between two adjacent annular positioning components. The two outermost annular positioning components are fixedly connected to one side of the first slide cylinder and the second slide cylinder, respectively. Two linkage blocks are fixedly installed on the outer side of the first slide cylinder. The linkage blocks are located at the end of the first slide cylinder near the filter assembly, and the two linkage blocks are fixedly connected to one end of the piston shaft of each of the two servo cylinders.

6. The integrated livestock manure treatment system according to claim 5, characterized in that, The spacing between two adjacent water inlet devices is the same as the length of the filter screen, and the position of each sewage isolation and drainage device corresponds one-to-one with the position of each water inlet device.

7. The integrated livestock manure treatment system according to claim 5, characterized in that, The water inlet device includes two outer annular sleeves, which are movably fitted onto two adjacent annular connectors. An outer annular partition is fixedly connected to the outer side between the two outer annular sleeves. The outer annular sleeves and the outer annular partition are integrally formed. The inner side of the outer annular partition does not contact the outer side of the annular connector. Multiple positioning guides are fixedly fitted onto the side of the outer annular sleeve away from the outer annular partition. The number of positioning guides is not less than two, and the multiple positioning guides are arranged in a circumferential array on the outer annular sleeve. A water inlet groove is opened on the outer annular sleeve to connect the positioning guides and the inner cavity of the outer annular partition. The inner cavities of two adjacent outer annular partitions are connected through the water inlet groove. The outermost outer annular sleeve is connected to a water conveying device. The inner side of the outer annular sleeve is movably connected to the outer side of the annular connector in the filter assembly.

8. The integrated treatment system for livestock manure and wastewater according to claim 7, characterized in that, The water conveying device includes an L-shaped conduit that is fixedly sleeved with the outer annular sliding sleeve. The end of the L-shaped conduit away from the outer annular sliding sleeve is connected to a main water pipe. The main water pipe is movably sleeved on the outside of the first sliding cylinder, and the top end of the main water pipe is connected to a water conveying pipe.

9. The integrated treatment system for livestock manure according to claim 7, characterized in that, The sewage isolation and drainage device includes two inner annular sliding sleeves, the distance between the two inner annular sliding sleeves is the same as the distance between the two outer annular sliding sleeves, and the positions of the two inner annular sliding sleeves correspond to the positions of the two outer annular partitions. A water-guiding sliding sleeve is fixedly installed on the outer side between the two inner annular sliding sleeves, and the outer side of the water-guiding sliding sleeve is movably connected to the inner side of the annular connector. The water-guiding sliding sleeve has several circumferential and linear arrays of water-guiding grooves. An inner annular partition is fixedly installed on the inner side between the two inner annular sliding sleeves. A drain pipe is connected between the inner annular sliding sleeves of two adjacent sewage isolation and drainage devices. In the outermost sewage isolation and drainage device, the end of the drain pipe away from the inner annular sliding sleeve extends out of the outer side cover and is connected to a main drain pipe. A water outlet pipe is connected to the middle of the bottom end of the main drain pipe. Multiple positioning rods are fixedly connected between the inner annular sliding sleeves of two adjacent sewage isolation and drainage devices. The multiple positioning rods are circumferentially distributed on the inner annular sliding sleeves, and the positioning rods are staggered with the drain pipes. One end of the positioning rod in the outermost sewage isolation and drainage device is fixedly connected to the inner side of one of the side covers.

10. The integrated livestock manure treatment system according to claim 3, characterized in that, The second positioning cylinder has an annular limiting block fixedly installed inside, located between the spiral blade and the drain outlet. The inner diameter of the annular limiting block decreases uniformly from the end facing the motor to the end facing the drain outlet. The first positioning cylinder has an annular positioning block fixedly installed inside, with a through groove on the annular positioning block that connects to the drain outlet. The inner side of the annular positioning block is movably connected to the outer side of the spiral blade.

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