Livestock manure solid-liquid separation device and solid-liquid separation method

Abstract

The present invention discloses a solid-liquid separation device for livestock manure and a solid-liquid separation method, wherein the solid-liquid separation device for livestock manure comprises a separation cylinder and a lifting platform, wherein a rotating mounting assembly is rotatably provided on the lifting platform, an extrusion bucket is provided on the rotating mounting assembly, a spiral scraper is fixedly connected to the outer wall of the extrusion bucket, a mobile filling assembly is provided between the top of the separation cylinder, the extrusion bucket and the lifting platform, a water injection assembly is provided between the lifting platform and the extrusion bucket, and the water injection assembly is connected to the mobile filling assembly. The present invention provides a solid-liquid separation device for livestock manure and a solid-liquid separation method to solve the problem in the prior art that after the solid-liquid separation device completes the manure processing operation, the odor caused by the manure causes harm to the operator during the cleaning process of the solid-liquid separation device.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-liquid separation, and in particular to a solid-liquid separation device and a solid-liquid separation method for livestock manure. Background Art

[0002] As people's demand for livestock themselves and various animal by-products continues to increase, animal husbandry has also been continuously developed. During livestock breeding operations, livestock usually produce some manure containing components such as animal excrement and food residues in their daily diet. For farms where livestock are raised in a centralized manner, the amount of manure produced every day is relatively high, and because manure also has a high recycling value, for example, after the solid-liquid separation operation of manure, the solid matter separated from the manure is easier to transport, and the solid material in the manure can be processed into organic fertilizer in subsequent processing operations, and the liquid separated from the manure can be directly collected and transported to a biogas pool for the production of combustible gas. Therefore, some farms of a certain scale are generally equipped with devices for solid-liquid separation of manure;

[0003] The equipment used for solid-liquid separation of feces and sewage in the prior art is a rotary drum separator that adopts the working principle of a microfiltration machine. The main working principle is to transport feces and sewage into a rotary drum, and a filter plate is provided on the side wall of the rotary drum. The centrifugal force generated by driving the rotary drum to rotate makes the feces and sewage fully contact with the inner wall of the rotary drum, and then the feces and sewage are subjected to solid-liquid separation operation, and the separated liquid and solid matter are classified and transported to realize the solid-liquid separation operation of feces and sewage. However, there are still certain defects in using a rotary drum separator to complete the solid-liquid separation operation of feces and sewage. First, because the feces and sewage are The objects he needs to separate solids and liquids are different. Manure has a serious odor problem, and because there are more microorganisms and bacteria in manure, manure is also one of the objects that is most likely to ferment and produce odor. When the operator controls the equipment to perform solid-liquid separation on manure, the operator needs to clean the manure residues retained on the filter plate in the equipment after using the equipment to ensure that the equipment continues to perform solid-liquid separation on manure. However, the odor in the equipment can easily make the operator feel uncomfortable and affect the operator's health. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a solid-liquid separation device and a solid-liquid separation method for livestock manure, so as to solve the problem proposed in the background technology that after the solid-liquid separation device in the existing technology completes the treatment of manure, the odor brought by the manure during the cleaning process inside the solid-liquid separation device may cause harm to the operator.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A solid-liquid separation device for livestock manure, comprising a separation cylinder and:

[0007] A lifting platform, wherein a rotating mounting assembly is rotatably provided on the lifting platform, an extrusion bucket is provided on the rotating mounting assembly, a spiral scraper is fixedly connected to the outer wall of the extrusion bucket, a mobile filling assembly is connected between the top of the separation cylinder, the extrusion bucket and the lifting platform, a water injection assembly is connected between the lifting platform and the extrusion bucket, the water injection assembly is connected to the mobile filling assembly, a press equipment is provided on the top of the separation cylinder, and the output end of the press equipment is fixedly connected to the lifting platform;

[0008] A support and separation component is arranged on the inner bottom side of the separation cylinder, and the support and separation component is located directly below the extrusion bucket body. An elastic support cylinder is provided between the support and separation component and the extrusion bucket body. The bottom of the support and separation component is connected to a discharge channel, and a secondary separation mechanism is provided in the discharge channel.

[0009] In order to drive the extrusion bucket body to rotate, the rotating mounting assembly further includes a fixed rotating drum and a bucket-shaped rotating cylinder. The fixed rotating drum is connected to the lifting platform, and the bucket-shaped rotating cylinder is rotatably connected to the fixed rotating drum. A rotating assembly is provided between the bucket-shaped rotating cylinder and the fixed rotating drum, and the extrusion bucket body is fixedly connected to the outside of the bucket-shaped rotating cylinder.

[0010] In order to add feces or water into the filter cylinder, further, the mobile filling assembly includes a lifting cylinder and a filling pipeline, the lifting cylinder is slidably connected to the top of the separation cylinder, the lifting cylinder is arranged in the fixed rotating cylinder, the lifting cylinder is connected to the bottom of the extrusion bucket, a partition plate is fixedly connected to the lifting cylinder, the filling pipeline is arranged in the lifting cylinder, the filling pipeline passes through the partition plate, and a valve is provided on the filling pipeline.

[0011] In order to discharge the cleaning water from the upper side of the extrusion bucket body, the water injection assembly further includes an annular water injection cylinder, a water adding pipe and an annular water storage tank. The annular water injection cylinder is fixedly connected to the lifting platform, and the extrusion bucket body is rotatably arranged at the bottom of the annular water injection cylinder. The annular water injection cylinder and the filling pipeline are connected by the water adding pipe, and the valve is also provided on the water adding pipe. The top of the extrusion bucket body is provided with the annular water storage tank, and a plurality of drainage holes are provided between the bottom end of the annular water injection cylinder and the annular water storage tank.

[0012] In order to perform solid-liquid separation operations on feces and sewage, on the basis of this scheme, the support and separation assembly includes a support cylinder, a filter cylinder and a sloped discharge ring cylinder. The support cylinder is fixedly connected to the separation cylinder, the inner wall of the support cylinder is bowl-shaped, the filter cylinder is fixedly connected to the support cylinder, the elastic support cylinder is arranged between the top of the extrusion bucket and the top of the filter cylinder, a water filtration interlayer is arranged in the filter cylinder, and a filter layer is arranged on the inner arc surface of the filter cylinder. The sloped discharge ring cylinder is connected to the water filtration interlayer and the bottom of the support cylinder, and the bottom end of the sloped discharge ring cylinder is connected to a sewage pipe, and the sewage pipe passes through the separation cylinder.

[0013] In order to perform a secondary separation operation on the feces and sewage after the initial solid-liquid separation when discharging them, on the basis of this solution, the secondary separation mechanism further includes a transmission drum, a filter chuck, a conical closing seat, a flexible extrusion ring, a rotating extrusion assembly and a discharge ring. The top of the transmission drum is rotatably connected to a fixed ring, and the fixed ring is fixedly connected to the bottom of the discharge channel through a support rod. The bottom of the transmission drum is rotatably connected to a rotating support, and the bottom of the discharge channel is fixedly connected to the filter chuck. A water filter layer is provided on the side of the filter chuck close to the transmission drum, and a accommodating cavity is provided on the top of the transmission drum. A driving electric cylinder is provided, and the driving electric cylinder is located in the accommodating chamber. The conical closing seat is fixedly connected to the output end of the driving electric cylinder. A sealing ring is provided in the discharge channel. The upper side of the sealing ring is set as an annular slope. The bottom of the sealing ring is in contact with the top of the conical closing seat. The flexible extrusion ring tube is set between the conical closing seat and the rotating support. The area between the flexible extrusion ring tube and the water filter layer is set as a feces discharge area. The rotating extrusion assembly is set on the transmission drum. The discharge ring tube is connected to the bottom of the feces discharge area. The discharge ring tube is fixedly connected between the filter clamp and the rotating support.

[0014] In order to squeeze the feces and sewage during the falling process, based on the above-mentioned scheme, the rotating extrusion assembly includes a first drive motor, a fixed support and an elastic spiral scraper. The first drive motor is arranged at the bottom of the rotating support, and the output end of the first drive motor is fixedly connected to the transmission drum. A plurality of fixed supports are fixedly connected to the transmission drum, and a sliding sleeve is fixedly connected to one side of the fixed support. A sliding rod is slidably connected in the sliding sleeve. A spring damper is arranged between the sliding rod and the sliding sleeve, and the elastic spiral scraper is arranged between the plurality of sliding rods.

[0015] In order to improve the discharge effect of the filtered sewage, based on the above solution, the bottom of the filter cartridge is further configured to be sloped, and the bottom of the filter cartridge is connected to a discharge pipeline.

[0016] A method for solid-liquid separation of livestock manure, using the above-mentioned solid-liquid separation device for livestock manure, comprises the following steps:

[0017] Step 1: Close the discharge channel: Start the driving electric cylinder to drive the conical closing seat to rise, so that the conical closing seat contacts the bottom end of the sealing ring, so that the discharge channel remains closed:

[0018] Step 2: Filling manure and sewage: transporting manure and sewage into the filling pipeline, filling the manure and sewage onto the surface of the filter layer in the filter cylinder through the filling pipeline, and then closing the valve on the filling pipeline after filling the manure and sewage with a volume that matches the capacity of the filter cylinder;

[0019] Step 3: Solid-liquid separation: Start the press equipment to drive the lifting platform, the bucket-shaped rotating cylinder and the extrusion bucket to descend, so that the extrusion bucket moves toward the filter cylinder. The bottom of the extrusion bucket fits against the surface of the filter layer, generating downward pressure on the feces and sewage, so that the liquid feces in the feces pass through the filter layer and enter the water filter layer in the filter cylinder. Finally, the water will enter the sloped discharge ring cylinder and be discharged through the sewage pipe.

[0020] Step 4: Discharging solid feces and sewage: The bucket-shaped rotating cylinder is driven to rotate by the rotating assembly, so that the bucket-shaped rotating cylinder drives the extrusion bucket to rotate, and the spiral scraper of the extrusion bucket drives the solid feces and sewage retained on the filter layer to be transported downward, so that the solid feces and sewage enter the discharge channel, and the driving electric cylinder is activated to drive the conical closing seat to descend, so that the solid feces and sewage enter the discharge channel;

[0021] Step 5, secondary separation: After the solid feces enter the discharge channel, the solid feces will fall into the feces discharge area formed between the flexible extrusion ring and the water filter layer, and then the first drive motor drives the transmission drum to rotate, driving the multiple fixed supports and the multiple sliding sleeves to rotate along the center point of the transmission drum. Under the action of the spring damper, the sliding rod is pushed to slide in the sliding sleeve, and the elastic spiral scraper is deformed by the sliding rod, so that the elastic spiral scraper is in close contact with the inner wall of the flexible extrusion ring, so that the flexible extrusion ring is squeezed toward the water filter layer, and the liquid feces in the solid feces will pass through the water filter layer and enter the filter cartridge, and finally the liquid feces will be discharged through the discharge pipeline;

[0022] Step 6, cleaning the filter layer: close the valve on the filling pipeline and open the valve on the water filling pipe, so that the clean water flows into the filling pipeline and then enters the annular water filling cylinder through the water filling pipe, and finally the clean water flows into the annular water storage tank through the drainage hole at the bottom of the annular water filling cylinder, and then is discharged through the drainage hole at the top of the extrusion bucket body. The extrusion bucket body is driven to rotate by the bucket-shaped rotating cylinder, so that the spiral scraper cooperates with the clean water to clean the surface of the filter layer;

[0023] Step 7, cleaning the water filter layer: the clean water that has completed cleaning the filter layer will enter the discharge channel, and the clean water will continue to flow between the water filter layer and the flexible extrusion ring cylinder. By moving the flexible extrusion ring cylinder, the flexible extrusion ring cylinder and the water filter layer are in contact with the clean water, completing the cleaning operation between the water filter layer and the flexible extrusion ring cylinder.

[0024] Compared with the prior art, the present invention provides a solid-liquid separation device and solid-liquid separation method for livestock manure, which has the following beneficial effects:

[0025] 1. In the present invention, when solid-liquid separation of feces and sewage is required, in order to prevent the odor in the feces and sewage from escaping into the surrounding environment during the solid-liquid separation operation, when feces and sewage are added to the filter cylinder through the filling pipeline, the vertical area between the extrusion bucket body and the filter cylinder body is kept sealed by the elastic support cylinder, so that the odor of the feces and sewage will not spread in the separation cylinder body and the surrounding environment, and when the filter press operation is required, the press equipment is started to drive the lifting platform, the bucket-shaped rotating cylinder and the extrusion bucket body to descend together, so that the extrusion bucket body enters the filter cylinder body, squeezes the feces and sewage between the filter cylinder body and the extrusion bucket body, thereby squeezing the water in the feces and sewage into the water filtration interlayer in the filter cylinder body, and then the separated water is discharged through the sloped discharge ring cylinder, and the separated solid matter can be discharged through the discharge channel.

[0026] 2. In the present invention, after the solid-liquid separation operation is performed on the feces and sewage in the filter cylinder, in order to discharge the solid feces and sewage retained on the filter layer of the filter cylinder, the bucket-shaped rotating cylinder and the extrusion bucket are driven to rotate, so that the spiral scraper pushes the solid feces and sewage on the filter layer to move into the discharge channel, and clean water can be added to the annular water injection cylinder through the filling pipeline. After being discharged from the annular water storage tank, the clean water flows downward from the top area of ​​the extrusion bucket. Through the cooperation between the spiral scraper and the clean water, the filter layer of the filter cylinder can be cleaned, thereby avoiding the presence of solid feces and sewage residues in the filter cylinder.

[0027] 3. In the present invention, when the solid feces and sewage are transported into the discharge channel, some water will still remain in the solid feces and sewage because the solid feces and sewage have undergone preliminary separation operations. When the solid feces and sewage are transported downward through the feces and sewage discharge area formed between the flexible extrusion ring cylinder and the water filter layer, the flexible extrusion ring cylinder is pushed toward the water filter layer of the filter cartridge by rotating the extrusion assembly, so that the feces and sewage are closely attached to the water filter layer during the falling process, and the residual water in the feces and sewage is infiltrated into the filter cartridge and discharged. The solid feces and sewage after the secondary separation operation are then discharged through the discharge ring cylinder, and the solid-liquid separation operation of the feces and sewage is completely completed.

[0028] 4. Therefore, the livestock manure solid-liquid separation device can perform multiple solid-liquid separation operations on manure to ensure the effect of the solid-liquid separation operation on manure, and in the process of cleaning the inside of the equipment, effectively prevent the odor of manure from spreading into the air and causing damage to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the overall structure of this application;

[0030] Figure 2 This is a schematic diagram of the structure of a partial cross-section of this application;

[0031] Figure 3 This is a partial cross-sectional structural diagram of the extrusion bucket, elastic support cylinder, filter cylinder and secondary separation mechanism in this application;

[0032] Figure 4 This is a schematic diagram of a partial cross-section of the structure of the extrusion bucket, fixed rotating cylinder, bucket-shaped rotating cylinder, lifting cylinder, filling pipeline and annular water injection cylinder in this application;

[0033] Figure 5 This is a schematic diagram of the exploded structure of the rotating installation component, the mobile filling component and the water injection component in this application;

[0034] Figure 6 It is a schematic diagram of a partial cross-section of the structure of the rotating installation component, the movable filling component and the water injection component in this application;

[0035] Figure 7 It is a partial cross-sectional structural diagram of the support separation component and the secondary separation mechanism in this application;

[0036] Figure 8 This is a schematic diagram of a partial cross-section of the structure of the sloped discharge ring, the filter cartridge, the conical closure seat and the discharge ring in the present application;

[0037] Figure 9 This is a schematic diagram of a partial cross-section of the structure of the transmission drum, the flexible extrusion ring, the conical closing seat and the elastic spiral scraper in this application;

[0038] Figure 10 For this application Figure 9 Schematic diagram of the local enlarged structure at A in the middle;

[0039] Figure 11 Schematic diagram of the structure of the filter cartridge in this application.

[0040] In the figure: 100, rotating installation assembly; 200, mobile filling assembly; 300, water injection assembly; 400, support and separation assembly; 500, secondary separation mechanism;

[0041] 1. Separation cylinder; 2. Lifting platform; 3. Extrusion bucket; 4. Spiral scraper; 5. Press equipment; 6. Elastic support cylinder; 7. Discharge channel; 8. Fixed rotating cylinder; 9. Bucket-shaped rotating cylinder; 10. Lifting cylinder; 11. Filling pipeline; 12. Separation plate; 13. Annular water injection cylinder; 14. Water filling pipe; 15. Annular water storage tank; 16. Drainage hole; 17. Support cylinder; 18. Filter cylinder; 19. Water filter interlayer; 20. Filter layer; 21. Slope discharge ring cylinder; 22. Drain pipe; 23. Drive drum; 24. Fixed ring; 25. Support rod; 26. Rotating support; 27. Filter cartridge; 28. Filter layer; 29. ​​Conical closure seat; 30. Drive electric cylinder; 31. Sealing ring; 32. Flexible extrusion ring; 33. Discharge ring; 34. First drive motor; 35. Fixed support; 36. Sliding sleeve; 37. Sliding rod; 38. Spring damper; 39. Elastic spiral scraper; 40. Discharge pipeline; 41. Second drive motor; 42. Transmission gear. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] For example 1, please refer to Figures 1 to 11, a livestock manure solid-liquid separation device includes a separation cylinder 1, and also includes a lifting platform 2. A rotating mounting assembly 100 is rotatably provided on the lifting platform 2, and an extrusion bucket 3 is provided on the rotating mounting assembly 100. A spiral scraper plate 4 is fixedly connected to the outer wall of the extrusion bucket 3. The rotating mounting assembly 100 includes a fixed rotating drum 8 and a bucket-shaped rotating cylinder 9. The lifting platform 2 is connected to the fixed rotating drum 8, and the bucket-shaped rotating cylinder 9 is rotatably connected to the fixed rotating drum 8. A rotating assembly is provided between the bucket-shaped rotating cylinder 9 and the fixed rotating drum 8. The rotating assembly includes a second drive motor 41, which is provided on the fixed rotating drum 8. A transmission gear 42 is provided on the inner wall of the bucket-shaped rotating cylinder 9 and the output end of the second drive motor 41. The two transmission gears 42 are meshed, and the extrusion bucket 3 is fixedly connected to the outer wall of the bucket-shaped rotating cylinder 9. On the outside of the bucket-shaped rotating cylinder 9, after completing the filtration operation of the feces and sewage in the filter cylinder 18, it is necessary to discharge the solid feces and sewage after filtration from the filter cylinder 18 and clean the filter layer 20 of the filter cylinder 18. The second drive motor 41 is started, and the bucket-shaped rotating cylinder 9 is driven to rotate through the meshing relationship of the two transmission gears 42, so that the bucket-shaped rotating cylinder 9 drives the extrusion bucket 3 and the spiral scraper 4 to rotate. Due to the spiral shape of the spiral scraper 4 on the extrusion bucket 3, the spiral scraper 4 is in contact with the filter layer 20 of the filter cylinder 18. When the solid feces and sewage on the filter layer 20 are driven downward by the spiral scraper 4, the residual impurities retained on the filter layer 20 can also be cleaned and transported downward, completing the discharge operation of the separated solid feces and sewage and the cleaning operation of the filter layer 20.

[0044] See also Figures 1 to 6A mobile filling assembly 200 is provided between the top of the separation cylinder 1, the extrusion bucket 3 and the lifting platform 2. The mobile filling assembly 200 includes a lifting cylinder 10 and a filling pipeline 11. The lifting cylinder 10 is slidably connected to the top of the separation cylinder 1. The lifting cylinder 10 is arranged in the fixed rotating cylinder 8. The lifting cylinder 10 is connected to the bottom of the extrusion bucket 3. A partition plate 12 is fixedly connected to the lifting cylinder 10. The filling pipeline 11 is arranged in the lifting cylinder 10. The filling pipeline 11 passes through the partition plate 12. A valve is provided on the filling pipeline 11. When it is necessary to add feces and sewage to the filter cylinder 18, the pipeline connected to the external sewage pumping equipment is connected to the filling pipeline 11. Thereby, the feces and sewage that need to undergo solid-liquid separation operations are discharged to the surface of the filter layer 20 of the filter cylinder 18. In the process of driving the lifting platform 2, the bucket-shaped rotating cylinder 9 and the extrusion bucket 3 to descend, the lifting cylinder 10 and the filling pipeline 11 move together with the lifting platform 2. When the extrusion bucket 3 performs a filter pressing operation on the feces and sewage in the filter cylinder 18, in order to prevent the feces and sewage from flowing back into the filling pipeline 11, the valve and the partition plate 12 are closed to prevent the feces and sewage from flowing back into the filling pipeline 11. The valve provided on the filling pipeline 11 keeps the filling pipeline 11 closed, and the filling pipeline 11 can also be kept closed when clean water needs to be added to the annular water injection cylinder 13.

[0045] See also Figures 1 to 6 A water injection assembly 300 is provided between the lifting platform 2 and the extrusion bucket 3, and the water injection assembly 300 is connected to the mobile filling assembly 200. The water injection assembly 300 includes an annular water injection cylinder 13, a water adding pipe 14 and an annular water storage tank 15. The annular water injection cylinder 13 is fixedly connected to the lifting platform 2, and the extrusion bucket 3 is rotatably arranged at the bottom of the annular water injection cylinder 13. A water adding pipe 14 is connected between the annular water injection cylinder 13 and the filling pipeline 11. A valve is also provided on the water adding pipe 14. An annular water storage tank 15 is provided on the top of the extrusion bucket 3, and a plurality of drainage holes 16 are provided between the bottom end of the annular water injection cylinder 13 and the annular water storage tank 15. When needed When cleaning the surface of the filter layer 20 of the filter cylinder 18, close the valve on the filling pipe 11 and open the valve on the water filling pipe 14, so that the clean water flows into the filling pipe 11 and then enters the annular water injection cylinder 13 through the water filling pipe 14, and finally flows into the annular water storage tank 15 through the drainage hole 16 at the bottom of the annular water injection cylinder 13. Although the extrusion bucket 3 is in a rotating state, the clean water will still be discharged through the drainage hole 16 connected to the top of the extrusion bucket 3, so that the clean water flows downward to the top of the extrusion bucket 3, completing the flushing operation on the surface of the filter layer 20, and cooperating with the spiral scraper 4 to clean the surface of the filter layer 20.

[0046] See also Figures 1 to 3A press device 5 is provided on the top of the separation cylinder 1. The output end of the press device 5 is fixedly connected to the lifting platform 2. The press device 5 is a device in the prior art that drives the components to move longitudinally and applies a large downward pressure on the object to squeeze the extrusion bucket 3 downward, so that the feces and sewage are subjected to the squeezing force between the extrusion bucket 3 and the filter layer 20 to perform solid-liquid separation operations.

[0047] See also Figures 1 to 3 and Figure 7 , the support and separation component 400 is arranged on the inner bottom side of the separation cylinder 1, the support and separation component 400 is located directly below the extrusion bucket 3, an elastic support cylinder 6 is arranged between the support and separation component 400 and the extrusion bucket 3, and the bottom of the support and separation component 400 is connected with a discharge channel 7, the support and separation component 400 includes a support cylinder 17, a filter cylinder 18 and a sloped discharge ring cylinder 21, the support cylinder 17 is fixedly connected to the separation cylinder 1, the inner wall of the support cylinder 17 is bowl-shaped, the filter cylinder 18 is fixedly connected to the support cylinder 17, the elastic support cylinder 6 is arranged between the top of the extrusion bucket 3 and the top of the filter cylinder 18, a water filter interlayer 19 is provided in the filter cylinder 18, and a filter layer 20 is provided on the inner arc surface of the filter cylinder 18, the sloped discharge ring cylinder 21 is connected to the water filter interlayer 19 and the bottom of the support cylinder 17, and the bottom end of the sloped discharge ring cylinder 21 is connected to a sewage pipe 22, and the sewage is discharged. The pipe 22 passes through the separation cylinder 1. When it is necessary to perform solid-liquid separation on the feces and sewage and to ensure that the odor of the feces and sewage will not leak, after the filling pipeline 11 discharges the feces and sewage to the surface of the filter layer 20 of the filter cylinder 18, the press equipment 5 drives the extrusion bucket 3 to move toward the surface of the filter layer 20, so that the extrusion bucket 3 and the filter layer 20 cooperate to complete the solid-liquid separation of the feces and sewage. The material of the filter layer 20 is the common filter mesh material used in the prior art for solid-liquid separation of feces and sewage. After the water in the feces and sewage is separated, it will enter the water filtration interlayer 19, and finally the water will enter the sloped discharge ring cylinder 21. Because the bottom of the sloped discharge ring cylinder 21 is a sloped surface, the water will flow to the lowest point of the bottom of the sloped discharge ring cylinder 21, and the sewage pipe 22 is connected to the lowest point of the bottom of the sloped discharge ring cylinder 21, which is convenient for discharging the separated water.

[0048] See also Figures 1 to 3 and Figures 7 to 11, a secondary separation mechanism 500 is provided in the discharge channel 7, and the secondary separation mechanism 500 includes a transmission drum 23, a filter cartridge 27, a conical closing seat 29, a flexible extrusion ring cylinder 32, a rotating extrusion assembly and a discharge ring cylinder 33. The top of the transmission drum 23 is rotatably connected to a fixed ring 24, and the fixed ring 24 is fixedly connected to the bottom of the discharge channel 7 through a support rod 25. The bottom of the transmission drum 23 is rotatably connected to a rotating support 26, and the bottom of the discharge channel 7 is fixedly connected to a filter cartridge 27. A water filter layer 28 is provided on the side of the filter cartridge 27 close to the transmission drum 23. The bottom of the filter cartridge 27 is set to a slope type, and the bottom of the filter cartridge 27 is connected to a discharge pipeline 40. When the transmission drum 23 needs to be set directly below the discharge channel 7, the installation of the transmission drum 23 is completed through the fixed ring 24, and the support rod 25 will pass through the flexible extrusion ring cylinder 32, so that the support rod 25 is connected to the bottom of the discharge channel 7, and the water filter layer The material of 28 is also the common filter material used in the prior art for solid-liquid separation of feces and sewage. When the solid feces and sewage flow between the water filter layer 28 and the flexible extrusion ring 32, the flexible extrusion ring 32 is driven to move toward the water filter layer 28 to complete the secondary separation of the solid feces and sewage. The cooperation between the extrusion bucket 3 and the filter cylinder 18 completes the filtration operation of the feces and sewage. However, there may still be a certain amount of water in the separated solid feces and sewage. However, when the solid feces and sewage are driven to move into the discharge channel 7 by the spiral scraper 4, the solid feces and sewage will be broken up. At this time, the solid feces and sewage are squeezed toward the water filter layer 28 by the flexible extrusion ring 32, and the water in the solid feces and sewage can be completely squeezed into the filter cartridge 27, completing the secondary solid-liquid separation of the solid feces and sewage. The water in the filter cartridge 27 will be discharged through the discharge pipe 40, completing the classified transportation of the separated feces and sewage.

[0049] The top of the transmission drum 23 is provided with an accommodating chamber, and the fixing ring 24 is provided with a driving electric cylinder 30, which is fixedly arranged on the fixing ring 24. The driving electric cylinder 30 does not rotate with the transmission drum 23, and the driving electric cylinder 30 is located in the accommodating chamber. The conical closing seat 29 is fixedly connected to the output end of the driving electric cylinder 30, and a sealing ring 31 is provided in the discharge channel 7. The upper side of the sealing ring 31 is provided with an annular slope, and the bottom of the sealing ring 31 is in contact with the top of the conical closing seat 29, so that the feces and sewage are prevented from entering the discharge channel 7 when the extrusion bucket 3 and the filter cylinder 18 perform preliminary solid-liquid separation on the feces and sewage. In order to prevent the feces and sewage from entering the discharge channel 7, the driving electric cylinder 30 is started to drive the conical closing seat 29 to rise, so that the conical closing seat 29 is in contact with the bottom end of the sealing ring 31, so as to prevent the feces and sewage from flowing into the discharge channel 7. In the subsequent process of solid feces and sewage moving into the discharge channel 7, because the top of the sealing ring 31 is an annular slope, it does not affect the feces and sewage from moving into the discharge channel 7.

[0050] The flexible extrusion ring 32 is arranged between the conical closing seat 29 and the rotating support 26. The area between the flexible extrusion ring 32 and the filter layer 28 is set as a feces discharge area. The rotating extrusion assembly is arranged on the transmission drum 23. The discharge ring 33 is connected to the bottom of the feces discharge area. The discharge ring 33 is fixedly connected between the filter cartridge 27 and the rotating support 26. The rotating extrusion assembly includes a first drive motor 34, a fixed support 35 and an elastic spiral scraper 39. The first drive motor 34 is arranged at the bottom of the rotating support 26. The output end of the first drive motor 34 is fixedly connected to the transmission drum 23. A plurality of fixed supports 35 are fixedly connected to the transmission drum 23. A sliding sleeve 36 is fixedly connected to one side of the fixed support 35. A sliding rod 37 is slidably connected in the sliding sleeve 36. A spring damper 38 is provided between the moving rod 37 and the sliding sleeve 36, and an elastic spiral scraper 39 is provided between multiple sliding rods 37. When it is necessary to move the flexible extrusion ring tube 32 toward the water filtration layer 28, the first drive motor 34 is started to drive the transmission drum 23 to rotate, and drive multiple fixed supports 35 and multiple sliding sleeves 36 to rotate along the center point of the transmission drum 23. Under the action of the spring damper 38, the sliding rod 37 is pushed to slide in the sliding sleeve 36, and the elastic spiral scraper 39 is deformed by the sliding rod 37, so that the elastic spiral scraper 39 is in close contact with the inner wall of the flexible extrusion ring tube 32, so that the flexible extrusion ring tube 32 is squeezed toward the water filtration layer 28, completing the secondary solid-liquid separation operation of the solid feces between the flexible extrusion ring tube 32 and the water filtration layer 28.

[0051] The working principle or use process of the livestock manure solid-liquid separation device and solid-liquid separation method is as follows:

[0052] First, connect the pipeline connected to the external sewage extraction equipment with the filling pipeline 11, so that the feces and sewage that need to be separated into solid and liquid are discharged to the surface of the filter layer 20 of the filter cylinder 18. At this time, start the press equipment 5 to drive the lifting platform 2, the bucket-shaped rotating cylinder 9 and the extrusion bucket 3 to descend, so that the extrusion bucket 3 moves toward the filter cylinder 18. The bottom of the extrusion bucket 3 fits with the surface of the filter layer 20, generating downward pressure on the feces and sewage, so that the liquid feces in the feces and sewage pass through the filter layer 20 and enter the filter cylinder 18. In the water filtering interlayer 19, the water will eventually enter the sloped discharge ring cylinder 21 and be discharged through the sewage pipe 22, and then the second drive motor 41 is started, and the bucket-shaped rotating cylinder 9 is driven to rotate through the meshing relationship of the two transmission gears 42, so that the bucket-shaped rotating cylinder 9 drives the extrusion bucket 3 and the spiral scraper 4 to rotate, and the spiral scraper 4 contacts the filter layer 20 of the filter cylinder 18, and the solid feces and sewage on the filter layer 20 are driven by the spiral scraper 4 to be transported downward, so that the solid feces and sewage move towards the discharge channel 7;

[0053] The electric cylinder 30 is started to drive the conical closing seat 29 to descend, so that the solid feces and sewage can enter the discharge channel 7 and descend between the filter cartridge 27 and the flexible extrusion ring cylinder 32. At this time, the first drive motor 34 is started to drive the transmission drum 23 to rotate, driving multiple fixed supports 35 and multiple sliding sleeves 36 to rotate along the center point of the transmission drum 23. Under the action of the spring damper 38, the sliding rod 37 is pushed to slide in the sliding sleeve 36. The elastic spiral scraper 39 is deformed by the sliding rod 37, so that the elastic spiral scraper 39 is in close contact with the inner wall of the flexible extrusion ring cylinder 32, so that the flexible extrusion ring cylinder 32 is squeezed toward the water filter layer 28, completing the secondary solid-liquid separation operation of the solid feces and sewage between the flexible extrusion ring cylinder 32 and the water filter layer 28, and the liquid feces in the solid feces will enter the filter cartridge 27 and finally be discharged through the discharge pipe 40.

[0054] When it is necessary to clean the filter layer 20 in the filter cylinder 18 and the water filter layer 28 on the filter interlayer, the valve on the filling pipe 11 is closed and the valve on the water filling pipe 14 is opened, so that the clean water flows into the filling pipe 11 and then enters the annular water injection cylinder 13 through the water filling pipe 14, and finally flows into the annular water storage tank 15 through the drainage hole 16 at the bottom of the annular water injection cylinder 13. Although the extrusion bucket 3 is in a rotating state, the clean water will still be discharged through the drainage hole 16 connected to the top of the extrusion bucket 3, so that the clean water flows downward to the top of the extrusion bucket 3, completing the flushing operation of the surface of the filter layer 20, and cooperating with the spiral scraper 4 to clean the surface of the filter layer 20, and the clean water will continue to flow between the water filter layer 28 and the flexible extrusion ring cylinder 32, and both the flexible extrusion ring cylinder 32 and the water filter layer 28 are in contact with the clean water, completing the cleaning operation between the water filter layer 28 and the flexible extrusion ring cylinder 32.

[0055] Example 2: This example 2 is based on a solid-liquid separation device for livestock manure, and also proposes a solid-liquid separation method for livestock manure, including the following steps:

[0056] Step 1: Close the discharge channel 7: Start the electric cylinder 30 to drive the conical closing seat 29 to rise, so that the conical closing seat 29 contacts the bottom end of the sealing ring 31, so that the discharge channel 7 remains closed:

[0057] Step 2: Adding manure and sewage: The manure and sewage are transported to the filling pipe 11, and the manure and sewage are added to the surface of the filter layer 20 in the filter cylinder 18 through the filling pipe 11. After the manure and sewage are added to a volume that matches the filter cylinder 18, the valve on the filling pipe 11 is closed;

[0058] Step 3: Solid-liquid separation: Start the press equipment 5 to drive the lifting platform 2, the bucket-shaped rotating cylinder 9 and the extrusion bucket 3 to descend, so that the extrusion bucket 3 moves toward the filter cylinder 18. The bottom of the extrusion bucket 3 is in contact with the surface of the filter layer 20, which generates downward pressure on the feces and sewage, so that the liquid feces in the feces pass through the filter layer 20 and enter the water filter layer 19 in the filter cylinder 18. Finally, the water will enter the sloped discharge ring 21 and be discharged through the sewage pipe 22.

[0059] Step 4: Discharge of solid feces and sewage: The bucket-shaped rotating cylinder 9 is driven to rotate by the rotating assembly, so that the bucket-shaped rotating cylinder 9 drives the extrusion bucket 3 to rotate, and the spiral scraper 4 of the extrusion bucket 3 drives the solid feces and sewage retained on the filter layer 20 to be transported downward, so that the solid feces and sewage enter the discharge channel 7, and the electric cylinder 30 is started to drive the conical closing seat 29 to descend, so that the solid feces and sewage enter the discharge channel 7;

[0060] Step 5, secondary separation: After the solid feces enter the discharge channel 7, the solid feces will fall into the feces discharge area formed between the flexible extrusion ring cylinder 32 and the water filter layer 28. Then the first drive motor 34 drives the transmission drum 23 to rotate, driving multiple fixed supports 35 and multiple sliding sleeves 36 to rotate along the center point of the transmission drum 23. Under the action of the spring damper 38, the sliding rod 37 is pushed to slide in the sliding sleeve 36. The elastic spiral scraper 39 is deformed by the sliding rod 37, so that the elastic spiral scraper 39 is in close contact with the inner wall of the flexible extrusion ring cylinder 32, so that the flexible extrusion ring cylinder 32 is squeezed toward the water filter layer 28, and the liquid feces in the solid feces will pass through the water filter layer 28 and enter the filter cartridge 27, and finally be discharged through the discharge pipe 40.

[0061] Step 6: Clean the filter layer 20: Close the valve on the filling pipe 11 and open the valve on the water filling pipe 14, so that the clean water flows into the filling pipe 11 and then enters the annular water injection cylinder 13 through the water filling pipe 14. Finally, the clean water flows into the annular water storage tank 15 through the drainage hole 16 at the bottom of the annular water injection cylinder 13, and then is discharged through the drainage hole 16 at the top of the extrusion bucket 3. The extrusion bucket 3 is driven to rotate by the bucket-shaped rotating cylinder 9, so that the spiral scraper 4 cooperates with the clean water to clean the surface of the filter layer 20;

[0062] Step 7, cleaning the water filter layer 28: The clean water that has completed cleaning the filter layer 20 will enter the discharge channel 7, and the clean water will continue to flow between the water filter layer 28 and the flexible extrusion ring cylinder 32. By moving the flexible extrusion ring cylinder 32, the flexible extrusion ring cylinder 32 and the water filter layer 28 are both in contact with the clean water, completing the cleaning operation between the water filter layer 28 and the flexible extrusion ring cylinder 32.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device for livestock manure, comprising a separation cylinder (1), characterized in that: Also includes: A lifting platform (2), wherein a rotating mounting assembly (100) is rotatably provided on the lifting platform (2), an extrusion bucket (3) is provided on the rotating mounting assembly (100), a spiral scraper (4) is fixedly connected to the outer wall of the extrusion bucket (3), a mobile filling assembly (200) is provided at the top of the separation cylinder (1), the extrusion bucket (3) and the lifting platform (2), a water injection assembly (300) is provided between the lifting platform (2) and the extrusion bucket (3), the water injection assembly (300) is connected to the mobile filling assembly (200), a press device (5) is provided at the top of the separation cylinder (1), and the output end of the press device (5) is fixedly connected to the lifting platform (2); A support and separation assembly (400), the support and separation assembly (400) being arranged on the inner bottom side of the separation cylinder (1), the support and separation assembly (400) being located directly below the extrusion bucket (3), an elastic support cylinder (6) being arranged between the support and separation assembly (400) and the extrusion bucket (3), a discharge channel (7) being connected to the bottom of the support and separation assembly (400), and a secondary separation mechanism (500) being arranged in the discharge channel (7); The rotating installation assembly (100) comprises: a fixed rotating drum (8), the lifting platform (2) is connected to the fixed rotating drum (8); a bucket-shaped rotating cylinder (9), the bucket-shaped rotating cylinder (9) is rotatably connected to the fixed rotating drum (8), a rotating assembly is provided between the bucket-shaped rotating cylinder (9) and the fixed rotating drum (8), and the extrusion bucket (3) is fixedly connected to the outside of the bucket-shaped rotating cylinder (9); The support separation assembly (400) comprises: a support cylinder (17), the support cylinder (17) being fixedly connected to the separation cylinder (1), the inner wall of the support cylinder (17) being bowl-shaped; a filter cylinder (18), the filter cylinder (18) being fixedly connected to the support cylinder (17), the elastic support cylinder (6) being arranged between the top of the extrusion bucket (3) and the top of the filter cylinder (18), a water filter interlayer (19) being arranged in the filter cylinder (18), and a filter layer (20) being arranged on the inner arc surface of the filter cylinder (18); and a sloped discharge ring cylinder (21), the sloped discharge ring cylinder (21) being connected to the water filter interlayer (19) and the bottom of the support cylinder (17), the bottom end of the sloped discharge ring cylinder (21) being connected to a sewage pipe (22), and the sewage pipe (22) passing through the separation cylinder (1).

2. The solid-liquid separation device for livestock manure according to claim 1, characterized in that: The mobile filling assembly (200) comprises: A lifting cylinder (10), wherein the lifting cylinder (10) is slidably connected to the top of the separation cylinder (1), the lifting cylinder (10) is arranged in the fixed rotating cylinder (8), and the lifting cylinder (10) is connected to the bottom of the extrusion bucket (3); A filling pipeline (11) is fixedly connected to a partition plate (12) in the lifting cylinder (10), the filling pipeline (11) is arranged in the lifting cylinder (10), the filling pipeline (11) passes through the partition plate (12), and a valve is provided on the filling pipeline (11).

3. The solid-liquid separation device for livestock manure according to claim 2, characterized in that: The water injection assembly (300) comprises: An annular water injection cylinder (13), the annular water injection cylinder (13) is fixedly connected to the lifting platform (2), and the extrusion bucket (3) is rotatably arranged at the bottom of the annular water injection cylinder (13); A water filling pipe (14), wherein the annular water filling cylinder (13) and the filling pipeline (11) are connected to each other via the water filling pipe (14), and the valve is also provided on the water filling pipe (14); An annular water storage trough (15) is provided on the top of the extrusion bucket (3), and a plurality of drainage holes (16) are provided between the bottom end of the annular water injection cylinder (13) and the annular water storage trough (15).

4. The solid-liquid separation device for livestock manure according to claim 3, characterized in that: The secondary separation mechanism (500) comprises: A transmission drum (23), wherein the top of the transmission drum (23) is rotatably connected to a fixed ring (24), the fixed ring (24) is fixedly connected to the bottom of the discharge channel (7) via a support rod (25), and the bottom of the transmission drum (23) is rotatably connected to a rotating support (26); A filter cartridge (27), the bottom of the discharge channel (7) is fixedly connected to the filter cartridge (27), and a water filter layer (28) is provided on a side of the filter cartridge (27) close to the transmission drum (23); A conical closing seat (29), a receiving cavity is provided on the top of the transmission drum (23), a driving electric cylinder (30) is provided on the fixing ring (24), the driving electric cylinder (30) is located in the receiving cavity, the conical closing seat (29) is fixedly connected to the output end of the driving electric cylinder (30), a sealing ring (31) is provided in the discharge channel (7), the upper side of the sealing ring (31) is provided as an annular slope, and the bottom of the sealing ring (31) is in contact with the top of the conical closing seat (29); A flexible extrusion ring cylinder (32), wherein the flexible extrusion ring cylinder (32) is arranged between the conical closing seat (29) and the rotating support (26), and a feces discharge area is set between the flexible extrusion ring cylinder (32) and the water filter layer (28); A rotating extrusion assembly, the rotating extrusion assembly being arranged on the transmission drum (23); A discharge ring cylinder (33) is connected to the bottom of the manure discharge area, and the discharge ring cylinder (33) is fixedly connected between the filter cartridge (27) and the rotating support (26).

5. The solid-liquid separation device for livestock manure according to claim 4, characterized in that: The rotary extrusion assembly comprises: a first drive motor (34), the first drive motor (34) being arranged at the bottom of the rotating support (26), and an output end of the first drive motor (34) being fixedly connected to the transmission drum (23); A fixed support (35), wherein a plurality of the fixed supports (35) are fixedly connected to the transmission drum (23), a sliding sleeve (36) is fixedly connected to one side of the fixed support (35), a sliding rod (37) is slidably connected inside the sliding sleeve (36), and a spring damper (38) is provided between the sliding rod (37) and the sliding sleeve (36); An elastic spiral scraper (39) is provided between the plurality of sliding rods (37).

6. The solid-liquid separation device for livestock manure according to claim 5, characterized in that: The bottom of the filter cartridge (27) is configured to be sloped, and the bottom of the filter cartridge (27) is connected to a discharge pipeline (40).

7. A method for solid-liquid separation of livestock manure, using the solid-liquid separation device of livestock manure according to claim 6, characterized in that: The following steps are involved: Step 1: Closing the discharge channel (7): Activating the driving electric cylinder (30) to drive the conical closing seat (29) to rise, so that the conical closing seat (29) contacts the bottom end of the sealing ring (31), so that the discharge channel (7) remains closed: Step 2: Filling manure and sewage: transporting manure and sewage into the filling pipe (11), filling the manure and sewage onto the surface of the filter layer (20) in the filter cylinder (18) through the filling pipe (11), and then closing the valve on the filling pipe (11) after filling the manure and sewage in a volume that matches the filter cylinder (18); Step 3, solid-liquid separation: start the press equipment (5) to drive the lifting platform (2), the bucket-shaped rotating cylinder (9) and the extrusion bucket (3) to descend, so that the extrusion bucket (3) moves toward the filter cylinder (18), and the bottom of the extrusion bucket (3) is in contact with the surface of the filter layer (20), thereby generating downward pressure on the feces, so that the liquid feces in the feces pass through the filter layer (20) and enter the water filter interlayer (19) in the filter cylinder (18), and finally the water enters the sloped discharge ring cylinder (21) and is discharged through the sewage pipe (22); Step 4, discharging solid feces and sewage: the bucket-shaped rotating cylinder (9) is driven to rotate by the rotating assembly, so that the bucket-shaped rotating cylinder (9) drives the extrusion bucket (3) to rotate, and the spiral scraper (4) of the extrusion bucket (3) drives the solid feces and sewage retained on the filter layer (20) to be transported downward, so that the solid feces and sewage enter the discharge channel (7), and the driving electric cylinder (30) is started to drive the conical closing seat (29) to descend, so that the solid feces and sewage enter the discharge channel (7); Step 5, secondary separation: After the solid feces enter the discharge channel (7), the solid feces will fall in the feces discharge area formed between the flexible extrusion ring (32) and the water filter layer (28), and then the first drive motor (34) drives the transmission drum (23) to rotate, driving the plurality of fixed supports (35) and the plurality of sliding sleeves (36) to rotate along the center point of the transmission drum (23), and under the action of the spring damper (38), push the The sliding rod (37) slides in the sliding sleeve (36), and the elastic spiral scraper (39) is deformed by the sliding rod (37), so that the elastic spiral scraper (39) is in close contact with the inner wall of the flexible extrusion ring (32), so that the flexible extrusion ring (32) is squeezed toward the water filter layer (28), and the liquid feces in the solid feces will pass through the water filter layer (28) and enter the filter cartridge (27), and finally the liquid feces will be discharged through the discharge pipe (40); Step 6, cleaning the filter layer (20): close the valve on the filling pipe (11), and open the valve on the water filling pipe (14), so that the clean water flows into the filling pipe (11) and then enters the annular water filling cylinder (13) through the water filling pipe (14), and finally the clean water flows into the annular water storage tank (15) through the drainage hole (16) at the bottom of the annular water filling cylinder (13), and then is discharged through the drainage hole (16) at the top of the extrusion bucket (3), and the extrusion bucket (3) is driven to rotate by the bucket-shaped rotating cylinder (9), so that the spiral scraper (4) cooperates with the clean water to clean the surface of the filter layer (20); Step 7, cleaning the water filter layer (28): The clean water that has completed cleaning the filter layer (20) will enter the discharge channel (7), and the clean water will continue to flow between the water filter layer (28) and the flexible extrusion ring cylinder (32). By moving the flexible extrusion ring cylinder (32), the flexible extrusion ring cylinder (32) and the water filter layer (28) are both in contact with the clean water, completing the cleaning operation between the water filter layer (28) and the flexible extrusion ring cylinder (32).

Images