Rotary drum type solid-liquid separator

Abstract

The utility model relates to a rotary drum type solid-liquid separator which comprises a rack, a primary filtering assembly, a secondary filtering assembly and a rotary hopper are arranged on the rack, the rotary hopper is used for being communicated with the primary filtering assembly and the secondary filtering assembly, and after excrement is subjected to double filtering of the primary filtering assembly and the secondary filtering assembly, the excrement is filtered by the primary filtering assembly and the secondary filtering assembly. The content of residual unfiltered water in the solid excrement is reduced, so that the content of water capable of being recycled in the farm is increased, and the content of external water resources needing to be consumed is reduced. The device has the effect of reducing the loss of water resources.

Description

Technical Field

[0001] The present application relates to the technical field of solid-liquid separation, and in particular to a rotary drum solid-liquid separator. Background Art

[0002] With the continuous development of animal husbandry and other breeding industries, the scale of farms has continued to expand. While providing a large amount of meat, farms also produce a large amount of animal manure. Solid-liquid separation of animal manure is an important part of animal manure utilization. Solid cow dung after solid-liquid separation can be used as high-quality organic fertilizer for crop planting or flower cultivation. At the same time, the water after solid-liquid separation can also be used for internal recycling within the farm, such as washing the floor of the barn, railings and other facilities to reduce bacterial growth and odor. In addition, this water can also be used to irrigate pasture or green plants around the farm.

[0003] However, traditional solid-liquid separation equipment usually only performs a single filtration operation. Therefore, there will still be a lot of water that has not been fully filtered in the feces after solid-liquid separation, and the solid-liquid separation effect is poor, which reduces the water content that can be recycled in the farm. When cleaning or irrigating the farm, more external water resources are required, and the loss of water resources increases, which is obviously insufficient. Utility Model Content

[0004] In order to reduce the loss of water resources, the present application provides a rotary drum solid-liquid separator.

[0005] The present application provides a rotary drum solid-liquid separator adopting the following technical solution:

[0006] A rotary drum solid-liquid separator comprises a frame, on which a primary filter assembly, a secondary filter assembly and a rotary hopper are arranged, wherein the rotary hopper is used to connect the primary filter assembly and the secondary filter assembly;

[0007] A primary filter assembly, the primary filter assembly comprising a first shell provided on the frame, a first filter cartridge being rotatably connected therein, a feed pipe communicating with the first filter cartridge being provided on the first shell, a spiral feed plate being provided on the inner side wall of the first filter cartridge, a water receiving tank being provided on the frame along the length direction of the first filter cartridge, a primary drain port being provided on the water receiving tank, and a feed end of the rotary hopper being communicated with a discharge end of the first filter cartridge;

[0008] A secondary filter assembly includes a second shell arranged below the frame, the second shell is connected to the discharge end of the rotary hopper, a No. 2 filter cartridge is arranged in the second shell, a spiral feed shaft is rotatably connected in the No. 2 filter cartridge, a second motor for driving the spiral feed shaft to rotate is arranged on the frame, a secondary drain outlet and a discharge outlet are opened on the second shell, and a unloading assembly is arranged at the discharge outlet.

[0009] By adopting the above technical solution, feces enters the No. 1 filter cartridge through the feed pipe. During the rotation of the No. 1 filter cartridge, the spiral feed plate pushes the feces to move toward the feed hopper. During the movement of the feces along the length direction of the No. 1 filter cartridge, the moisture in the feces enters the water receiving tank through the filter holes of the No. 1 filter cartridge and is discharged from the primary drain port. The solid feces after preliminary filtration enters the rotary hopper and then enters the No. 2 filter cartridge from the discharge end of the rotary hopper. The rotating spiral feed shaft further squeezes and transports the solid feces, so that the residual moisture therein is discharged through the secondary drain port. The solid feces that has been filtered for the secondary time is discharged from the discharge port under the action of the unloading assembly. Compared with the single solid-liquid separation in traditional technology, after the feces is double filtered by the primary filter assembly and the secondary filter assembly, the residual unfiltered moisture content in the solid feces is reduced, thereby increasing the water content that can be recycled in the farm and reducing the content of external water resources that need to be consumed.

[0010] Optionally, a drive assembly is further included, wherein the drive assembly includes a first motor arranged on the frame, the output shaft of the first motor is coaxially fixedly connected to a first sprocket, a connecting shaft is provided on the No. 1 filter cartridge, a second sprocket is coaxially provided on the connecting shaft, a chain is commonly provided on the outer surfaces of the first sprocket and the second sprocket, and the diameter of the first sprocket is smaller than the diameter of the second sprocket.

[0011] By adopting the above technical solution, during solid-liquid separation, the first motor drives the first sprocket to rotate, the first sprocket drives the second sprocket to rotate through the chain, and the second sprocket drives the No. 1 filter cartridge to rotate around the axis of the connecting shaft through the connecting shaft, thereby realizing the transportation of solid feces in the No. 1 filter cartridge. At the same time, since the diameter of the first sprocket is smaller than the diameter of the second sprocket, the lever arm of the first sprocket is smaller than the lever arm of the second sprocket, so the power loss of the first motor is reduced, thereby reducing the loss of electric energy.

[0012] Optionally, support assemblies are provided at opposite ends of the frame along the length direction, and the support assemblies include support wheels provided on opposite sides of the width direction of the No. 1 filter cartridge, and the No. 1 filter cartridge abuts against the support wheels.

[0013] By adopting the above technical solution, when the first motor drives the No. 1 filter cartridge to rotate, the support assembly provides stable support for the rotation of the No. 1 filter cartridge, preventing the No. 1 filter cartridge from shaking or shifting during the rotation process, thereby ensuring the smooth progress of the primary filtration process and improving the filtration effect of the primary filtration assembly and the stability of the equipment operation.

[0014] Optionally, a water outlet pipe is provided on the inner top wall of the first shell, the length direction of the water outlet pipe is parallel to the length direction of the first filter cartridge, and a plurality of high-pressure nozzles are connected to the water outlet pipe, and the water outlet direction of the high-pressure nozzles is set toward the first filter cartridge.

[0015] By adopting the above technical solution, when the feces filtering work is completed, the worker connects the outlet pipe to the circulating water source, and the water flows along the outlet pipe to the high-pressure nozzle. The water eventually becomes a high-pressure water flow and is sprayed onto the surface of the rotating filter cartridge No. 1. When the high-pressure water flow contacts the filter cartridge No. 1, the impurities blocked in the filter holes of the filter cartridge No. 1 are flushed into the water receiving tank by the high-pressure water flow. This arrangement realizes the full coverage and cleaning of the filter cartridge No. 1 by the high-pressure water flow, ensuring the normal filtering work of the filter cartridge No. 1.

[0016] Optionally, the unloading assembly includes a baffle plate slidably connected to the spiral feeding shaft, a mounting bracket is provided on the spiral feeding shaft, a spring is sleeved on the outer surface of the spiral feeding shaft, one end of the spring is connected to the mounting bracket, and the other end is connected to the baffle plate. When the spring is in a natural state, the baffle plate blocks the discharge port.

[0017] By adopting the above technical solution, during the operation of the second filter component, solid feces gradually accumulates under the push of the spiral feeding shaft and generates a certain pressure on the baffle plate. When the pressure is greater than the elastic force of the spring, the feces pushes the baffle plate to gradually separate from the discharge port, and the opening degree of the discharge port gradually becomes larger. The feces that have undergone secondary filtration flows out from the discharge port to achieve unloading. As the feces are discharged, the pressure generated by the feces accumulated in the second shell on the baffle plate decreases, and the spring pushes the baffle plate to re-block the discharge port. The setting of the unloading component realizes the control of the material discharge timing, effectively preventing the occurrence of feces that have not been fully filtered from the discharge port in advance, and ensuring the filtering effect of the second filter component.

[0018] Optionally, convex strips are provided on opposite sides of the spiral feeding shaft, and guide grooves corresponding to the convex strips are opened on the baffle plate, and the convex strips are slidably connected in the guide grooves.

[0019] By adopting the above technical solution, when the spiral feeding shaft rotates at high speed and pushes the feces, the baffle plate will be subjected to uneven pressure and friction from the feces. The cooperation of the convex strips and the guide grooves effectively limits the movement direction of the baffle plate, so that the baffle plate always slides along the axial direction of the spiral feeding shaft, avoiding the baffle plate from being skewed due to uneven force, resulting in the inability to properly block the discharge port or the occurrence of poor unloading, thereby ensuring the normal operation of the unloading component.

[0020] Optionally, the connecting shaft is detachably connected to the first sprocket via a connecting flange.

[0021] By adopting the above technical solution, when the No. 1 filter cartridge needs to be disassembled and installed due to damage, workers can quickly assemble and disassemble the No. 1 filter cartridge and the first sprocket through the connecting flange. This arrangement does not require the overall disassembly of the drive assembly or other components, making it easier to carry out maintenance or replacement work.

[0022] Optionally, the bottom surface of the water receiving tank is tilted from top to bottom along the direction from the feed pipe to the primary drain outlet.

[0023] By adopting the above technical solution, when the feces moves along the No. 1 filter cartridge, the water in the feces enters the water receiving tank through the filter holes of the No. 1 filter cartridge. Under the action of gravity, the water will spontaneously flow toward the primary drain outlet. The inclined bottom surface can make the liquid quickly converge to the drain outlet for discharge, effectively preventing the liquid from remaining in the water receiving tank.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. This application provides a primary filtration component and a secondary filtration component. After the feces are double-filtered by the primary and secondary filtration components, the residual unfiltered moisture content in the solid feces is reduced, thereby increasing the water content that can be recycled in the farm and reducing the amount of external water resources required;

[0026] 2. This application sets up a discharge component; the setting of the discharge component realizes the control of the material discharge timing, effectively prevents the occurrence of insufficiently filtered feces being discharged from the discharge port prematurely, and ensures the filtering effect of the second filter component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of this application.

[0028] Figure 2 It is a cross-sectional view of the first shell in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view of filter cartridge No. 1 in the embodiment of the present application.

[0030] Figure 4 It is a structural diagram of the secondary filtration component in the embodiment of the present application.

[0031] Figure 5 It is a cross-sectional view of the No. 2 filter cartridge in the embodiment of the present application.

[0032] Explanation of the accompanying drawings: 1. Frame; 2. Primary filter assembly; 21. First shell; 22. Filter cartridge No. 1; 23. Feed pipe; 24. Spiral feed plate; 25. Water receiving tank; 251. Primary drain outlet; 3. Secondary filter assembly; 31. Second shell; 311. Secondary drain outlet; 312. Discharge outlet; 32. Filter cartridge No. 2; 33. Spiral feed shaft; 34. Second motor; 4. Rotating hopper; 5. Drive assembly; 51. First motor; 52. First sprocket; 53. Connecting shaft; 54. Second sprocket; 55. Chain; 6. Support assembly; 61. Support wheel; 7. Connecting flange; 8. Discharge assembly; 81. Baffle plate; 82. Mounting frame; 83. Spring; 9. Raised strip; 10. Guide groove; 11. Water outlet pipe; 12. High-pressure nozzle. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a rotary drum solid-liquid separator.

[0035] Reference Figure 1 A rotary drum solid-liquid separator includes a frame 1, on which a primary filter component 2 and a secondary filter component 3 are provided. A rotary hopper 4 is fixedly connected to one side of the frame 1, and the rotary hopper 4 is used to connect the primary filter component 2 and the secondary filter component 3.

[0036] Reference Figure 1 and Figure 2 The primary filter assembly 2 includes a first shell 21 fixedly connected to the upper surface of the frame 1, and a No. 1 filter cartridge 22 is arranged in the first shell 21. The length direction of the No. 1 filter cartridge 22 is parallel to the length direction of the first shell 21. The frame 1 is provided with a driving assembly 5 for driving the No. 1 filter cartridge 22 to rotate in the first shell 21. Support assemblies 6 are provided on both sides of the frame 1 opposite to each other along the length direction. The support assembly 6 is used to support the rotational movement of the No. 1 filter cartridge 22 inside the first shell 21.

[0037] Reference Figures 1 to 3The driving assembly 5 includes a first motor 51 fixedly mounted on the frame 1, and the output shaft of the first motor 51 is coaxially fixedly connected to a first sprocket 52. The side of the No. 1 filter cartridge 22 away from the rotary hopper 4 is coaxially fixedly connected to a connecting shaft 53. A second sprocket 54 is coaxially arranged on the connecting shaft 53. The second sprocket 54 and the connecting shaft 53 are detachably connected via a connecting flange 7. A chain 55 is meshed with the outer surfaces of the first sprocket 52 and the second sprocket 54. The diameter of the first sprocket 52 is smaller than that of the second sprocket 54.

[0038] During solid-liquid separation, the first motor 51 drives the first sprocket 52 to rotate, and the first sprocket 52 drives the second sprocket 54 to rotate through the chain 55. The second sprocket 54 drives the No. 1 filter cartridge 22 to rotate around the axis of the connecting shaft 53 through the connecting shaft 53, thereby realizing the transportation of solid feces in the No. 1 filter cartridge 22. At the same time, since the diameter of the first sprocket 52 is smaller than the diameter of the second sprocket 54, the lever arm of the first sprocket 52 is smaller than the lever arm of the second sprocket 54, so the power loss of the first motor 51 is reduced, reducing the loss of electric energy.

[0039] Reference Figures 1 to 3 The support assembly 6 includes support wheels 61 arranged on opposite sides of the width direction of the No. 1 filter cartridge 22. The support wheels 61 are rotatably connected to the frame 1, and the outer surface of the No. 1 filter cartridge 22 abuts against the support wheels 61. During the process of the first motor 51 driving the No. 1 filter cartridge 22 to rotate, the support assembly 6 provides stable support for the rotation of the No. 1 filter cartridge 22 to prevent the No. 1 filter cartridge 22 from shaking or deflecting during the rotation process, thereby ensuring the smooth progress of the primary filtration process and improving the filtration effect of the primary filter assembly 2 and the stability of the equipment operation.

[0040] Reference Figures 1 to 3 A feed pipe 23 is fixedly installed at one end of the first shell 21 away from the feed hopper, and the feed pipe 23 extends to the inside of the No. 1 filter cartridge 22. A spiral feed plate 24 is fixedly connected to the inner wall of the No. 1 filter cartridge 22, and the length direction of the spiral feed plate 24 is parallel to the length direction of the No. 1 filter cartridge 22. A water receiving tank 25 is fixedly connected to the bottom surface of the frame 1. The length of the water receiving tank 25 is greater than the length of the No. 1 filter cartridge 22 and is located directly below the No. 1 filter cartridge 22. A primary drain outlet 251 is provided on the end of the water receiving tank 25 away from the feed pipe 23. The bottom surface of the water receiving tank 25 is inclined from top to bottom along the direction from the feed pipe 23 to the primary drain outlet 251, and the discharge end of the No. 1 filter cartridge 22 is connected to the feed end of the rotary hopper 4.

[0041] Reference Figures 3 to 5The secondary filtration assembly 3 includes a second shell 31 fixedly connected to the frame 1, the feed end of the second shell 31 is connected to the discharge end of the rotary hopper 4, a No. 2 filter cartridge 32 is fixedly connected to the second shell 31, and a spiral feed shaft 33 is rotatably connected to the inside of the No. 2 filter cartridge 32. A second motor 34 is fixedly installed on the frame 1, and the output shaft of the second motor 34 is coaxially fixedly connected to the spiral feed shaft 33. A secondary drain outlet 311 and a discharge outlet 312 are provided on the second shell 31, and a discharge assembly 8 is provided at the discharge outlet 312.

[0042] Feces enters the No. 1 filter cartridge 22 through the feed pipe 23. When the drive assembly 5 drives the No. 1 filter cartridge 22 to rotate, the spiral feed plate 24 pushes the feces toward the feed hopper. As the feces moves along the length of the No. 1 filter cartridge 22, the water in the feces enters the water receiving tank 25 through the filter holes of the No. 1 filter cartridge 22. Under the action of gravity, the water will spontaneously flow toward the primary drain outlet 251 and be discharged. The inclined bottom surface can quickly gather the liquid to the drain outlet for discharge, effectively preventing liquid from remaining in the water receiving tank 25.

[0043] The solid feces after preliminary filtration enters the rotary hopper 4, and then enters the second filter cartridge 32 from the discharge end of the rotary hopper 4. At this time, the second motor 34 drives the spiral feed shaft 33 to rotate, and the spiral feed shaft 33 further squeezes and transports the solid feces. The residual moisture in the solid feces is finally discharged through the secondary drainage port 311. The solid feces that have undergone secondary filtration are discharged from the discharge port 312 under the action of the unloading component 8. Compared with the single solid-liquid separation in traditional technology, after the feces are double filtered by the primary filter component 2 and the secondary filter component 3, the residual unfiltered moisture content in the solid feces is reduced, thereby increasing the water content that can be recycled in the farm and reducing the content of external water resources that need to be consumed.

[0044] Reference Figure 4 and Figure 5 The unloading assembly 8 includes a baffle plate 81 arranged at the discharge port 312, and the size and shape of the baffle plate 81 are the same as the discharge port 312, and the baffle plate 81 is slidably connected to the spiral feeding shaft 33, and the opposite sides of the spiral feeding shaft 33 are fixedly connected with a convex strip 9, and the length direction of the convex strip 9 is parallel to the length direction of the spiral feeding shaft 33. The baffle plate 81 is provided with a guide groove 10 corresponding to the convex strip 9, and the convex strip 9 is slidably connected in the guide groove 10, and the spiral feeding shaft 33 is fixedly connected to the mounting bracket 82, and the mounting bracket 82 is sleeved on one end of the spiral feeding shaft 33 extending out of the discharge port 312. The outer surface of the spiral feeding shaft 33 is sleeved with a spring 83, one end of the spring 83 is fixedly connected to the inner surface of the mounting bracket 82 facing the discharge port 312, and the other end is fixedly connected to the baffle plate 81. When the spring 83 is in a natural state, the baffle plate 81 blocks the discharge port 312.

[0045] During the operation of the second filtering assembly, solid feces gradually accumulates at the discharge port 312 under the push of the spiral feeding shaft 33 and generates a certain pressure on the baffle plate 81. When the pressure is greater than the elastic force of the spring 83, the baffle plate 81 moves toward the mounting bracket 82 along the axial direction of the spiral feeding shaft 33 under the cooperation of the ridge 9 and the guide groove 10. At this time, the opening of the discharge port 312 gradually becomes larger, and the feces that have been filtered for the second time flow out of the discharge port 312 to achieve unloading;

[0046] As the feces are discharged, the pressure exerted by the feces accumulated in the second shell 31 on the baffle plate 81 decreases, and the spring 83 pushes the baffle plate 81 toward the discharge port 312 and re-blocks the discharge port 312. The setting of the unloading component 8 realizes the control of the material discharge timing, effectively preventing the occurrence of feces that have not been fully filtered from the discharge port 312 in advance, thereby ensuring the filtering effect of the second filter component.

[0047] Reference Figure 2 and Figure 3 A water outlet pipe 11 is fixedly connected to the inner top wall of the first shell 21, and the length direction of the water outlet pipe 11 is parallel to the length direction of the No. 1 filter cartridge 22. A plurality of high-pressure nozzles 12 are fixedly installed on the water outlet pipe 11, and the water outlet direction of the high-pressure nozzle 12 is set toward the No. 1 filter cartridge 22. When the feces filtering work is completed, the worker connects the water outlet pipe 11 to the circulating water source, and the water flows along the water outlet pipe 11 to the high-pressure nozzle 12. The water flow eventually becomes a high-pressure water flow sprayed onto the surface of the rotating No. 1 filter cartridge 22. When the high-pressure water flow contacts the No. 1 filter cartridge 22, the impurities blocked in the filter holes of the No. 1 filter cartridge 22 are flushed into the water receiving tank 25 by the high-pressure water flow. This arrangement realizes the comprehensive coverage and cleaning of the No. 1 filter cartridge 22 by the high-pressure water flow, ensuring the normal filtering work of the No. 1 filter cartridge 22.

[0048] The working principle of the rotary drum solid-liquid separator of the embodiment of the present application is as follows: feces enters the first filter cartridge 22 through the feed pipe 23. When the drive assembly 5 drives the first filter cartridge 22 to rotate, the spiral feed plate 24 pushes the feces to move toward the feed hopper. When the feces moves along the length direction of the first filter cartridge 22, the water in the feces enters the water receiving tank 25 through the filter holes of the first filter cartridge 22 and is finally discharged from the primary drain outlet 251.

[0049] The solid feces after preliminary filtration enters the rotary hopper 4, and then enters the second filter cartridge 32 from the discharge end of the rotary hopper 4. At this time, the second motor 34 drives the spiral feed shaft 33 to rotate, and the spiral feed shaft 33 further squeezes and transports the solid feces. The residual moisture in the solid feces is finally discharged through the secondary drainage port 311. The solid feces that have undergone secondary filtration are discharged from the discharge port 312 under the action of the unloading component 8. Compared with the single solid-liquid separation in traditional technology, after the feces are double filtered by the primary filter component 2 and the secondary filter component 3, the residual unfiltered moisture content in the solid feces is reduced, thereby increasing the water content that can be recycled in the farm and reducing the content of external water resources that need to be consumed.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A rotary drum solid-liquid separator, characterized in that: The invention comprises a frame (1), wherein a primary filter assembly (2), a secondary filter assembly (3) and a transfer hopper (4) are arranged on the frame (1), and the transfer hopper (4) is used to connect the primary filter assembly (2) and the secondary filter assembly (3); A primary filter assembly (2), the primary filter assembly (2) comprising a first shell (21) arranged on the frame (1), a first filter cartridge (22) being rotatably connected in the first shell (21), a feed pipe (23) communicating with the first filter cartridge (22) being provided on the first shell (21), a spiral feed plate (24) being provided on the inner side wall of the first filter cartridge (22), a water receiving box (25) being provided on the frame (1) along the length direction of the first filter cartridge (22), a primary drain port (251) being provided on the water receiving box (25), and a feed end of the rotary hopper (4) being communicated with a discharge end of the first filter cartridge (22); A secondary filter assembly (3), the secondary filter assembly (3) comprising a second shell (31) arranged below the frame (1), the second shell (31) being connected to the discharge end of the rotary hopper (4), a No. 2 filter cartridge (32) being arranged in the second shell (31), a screw feed shaft (33) being rotatably connected in the No. 2 filter cartridge (32), a second motor (34) for driving the screw feed shaft (33) to rotate being arranged on the frame (1), a secondary drain outlet (311) and a discharge outlet (312) being provided on the second shell (31), and a discharge assembly (8) being arranged at the discharge outlet (312).

2. A rotary drum solid-liquid separator according to claim 1, characterized in that: The invention also includes a driving assembly (5), wherein the driving assembly (5) includes a first motor (51) arranged on the frame (1), the output shaft of the first motor (51) is coaxially fixedly connected to a first sprocket (52), a connecting shaft (53) is arranged on the first filter cartridge (22), a second sprocket (54) is coaxially arranged on the connecting shaft (53), a chain (55) is commonly sleeved on the outer surfaces of the first sprocket (52) and the second sprocket (54), and the diameter of the first sprocket (52) is smaller than the diameter of the second sprocket (54).

3. A rotary drum solid-liquid separator according to claim 1, characterized in that: The frame (1) is provided with support assemblies (6) at both opposite ends along the length direction. The support assemblies (6) include support wheels (61) provided on opposite sides of the first filter cartridge (22) in the width direction. The first filter cartridge (22) abuts against the support wheels (61).

4. A rotary drum solid-liquid separator according to claim 1, characterized in that: A water outlet pipe (11) is provided on the inner top wall of the first shell (21), the length direction of the water outlet pipe (11) is parallel to the length direction of the first filter cartridge (22), and a plurality of high-pressure nozzles (12) are connected to the water outlet pipe (11), and the water outlet direction of the high-pressure nozzles (12) is arranged toward the first filter cartridge (22).

5. A rotary drum solid-liquid separator according to claim 1, characterized in that: The unloading assembly (8) includes a baffle plate (81) slidably connected to the spiral feeding shaft (33); a mounting bracket (82) is provided on the spiral feeding shaft (33); a spring (83) is sleeved on the outer surface of the spiral feeding shaft (33); one end of the spring (83) is connected to the mounting bracket (82), and the other end is connected to the baffle plate (81); when the spring (83) is in a natural state, the baffle plate (81) blocks the discharge port (312).

6. A rotary drum solid-liquid separator according to claim 5, characterized in that: The spiral feeding shaft (33) is provided with convex strips (9) on both opposite sides, and the baffle plate (81) is provided with guide grooves (10) corresponding to the convex strips (9) one by one, and the convex strips (9) are slidably connected in the guide grooves (10).

7. A rotary drum solid-liquid separator according to claim 2, characterized in that: The connecting shaft (53) is detachably connected to the first sprocket (52) via a connecting flange (7).

8. The rotary drum solid-liquid separator according to claim 1, characterized in that: The bottom surface of the water receiving tank (25) is arranged to be inclined from top to bottom along the direction from the feed pipe (23) to the primary drain outlet (251).

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