A solid waste interception and treatment system

Abstract

The present invention provides a solid waste interception and treatment system, which relates to the technical field of wastewater treatment, including: the solid waste interception and treatment system, the treatment device includes a treatment chamber, and a mixing motor is fixedly installed at the inner bottom end of the treatment chamber; a discharge pipe is fixedly connected to the right bottom of the treatment chamber; a mixing shaft is rotatably installed at the central position of the inner bottom end of the treatment chamber. The adopted structure links the work of regularly cleaning solid waste with the work of adding flocculant together. When regularly cleaning solid waste, the addition of flocculant is synchronously completed, directly omitting a regular work step, reducing the operation steps, and improving the convenience of use of the present invention. It solves the problem that the work of cleaning waste and adding flocculant in the treatment method and the corresponding treatment device are mostly carried out separately, and separate implementation will result in trivial operation steps and long operation time.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment in biogas digesters, and particularly to a solid waste interception and treatment system. Background Art

[0002] Taking the Comprehensive Wastewater Discharge Standard (GB8978-1996) as an example, the water quality after the treatment of biogas digester wastewater should meet the following indicators (or better):

[0003] Chemical Oxygen Demand (COD): ≤100 mg / L (primary discharge standard).

[0004] Biochemical Oxygen Demand (BOD5): ≤30 mg / L (primary discharge standard).

[0005] Suspended Solids (SS): ≤70 mg / L (primary discharge standard).

[0006] Ammonia Nitrogen (NH3-N): ≤15 mg / L (primary discharge standard).

[0007] Based on the above, after the biogas digester is used for a period of time, due to the large accumulation of slag waste, the gas production efficiency of the biogas digester is seriously affected. To reduce this impact, it is necessary to treat the slag in the biogas digester. Wastewater pretreatment is the first step in biogas digester wastewater treatment, which mainly includes two links: solid-liquid separation and precipitation.

[0008] Solid-liquid separation: Separate the solid substances from the liquid in the sewage through physical methods (such as filtration, centrifugation, etc.) to reduce impurities in the biogas fermentation process and improve the biogas production and quality.

[0009] Precipitation: Use the gravity to precipitate the suspended solids in the sewage to the bottom to further purify the water quality. This link can be achieved through equipment such as sedimentation tanks.

[0010] In the use process of the existing biogas digester waste treatment methods and corresponding treatment devices, to avoid blockage, the waste on the filter grille is cleaned regularly. At the same time, to ensure the treatment effect, chemical agents such as flocculants are also regularly put into the interior of the treatment device to treat the wastewater. However, the two tasks (cleaning waste and putting in flocculants) of the existing treatment methods and corresponding treatment devices are mostly carried out separately. Separately carrying out will cause the operation steps to be trivial and the operation time to be relatively long. Therefore, the present invention improves a treatment system that can synchronously clean the intercepted waste while putting in flocculants. Summary of the Invention

[0011] An embodiment of the present disclosure relates to a solid waste interception and treatment system, which intercepts solid waste in the wastewater discharged from the biogas digester through a grille assembly, so that the solid waste does not enter the interior of the treatment chamber along with the wastewater. The mixing shaft drives the mixing member to rotate, so that the mixing member accelerates the mixing of the wastewater and the flocculant through rotation, and the flocculant treats the non-solid waste in the wastewater.

[0012] In the first aspect of the present disclosure, a solid waste interception and treatment system is provided, which specifically includes: the solid waste interception and treatment system, the treatment device includes a treatment chamber, and a mixing motor is fixedly installed at the bottom end inside the treatment chamber; a discharge pipe is fixedly connected to the right bottom of the treatment chamber; a mixing shaft is rotatably installed at the center position of the bottom end inside the treatment chamber; the bottom end of the mixing shaft is connected to the output shaft of the mixing motor; a mixing member is fixedly installed on the circumferential outer wall of the mixing shaft; a feeding turntable is fixedly installed at the top end of the mixing shaft; feeding holes are arranged in a circumferential arrangement on the top of the feeding turntable; sealing seats are fixedly installed in a circumferential arrangement on the circumferential inner wall of the treatment chamber; the sealing seats are of a U-shaped structure, and connection holes are opened at the tops of the sealing seats; a transmission gear ring is rotatably installed on the sealing seats; a flocculant chamber is fixedly installed on the outer periphery of the top of the treatment chamber; a feeding pipe is fixedly installed at the bottom end of the flocculant chamber; the bottom end of the feeding pipe is inserted into the interior of the treatment chamber; the bottom end of the feeding pipe is also communicated with the connection hole; a travel groove is opened on the circumferential outer wall of the feeding pipe; a plug A is rotatably installed inside the feeding pipe; a travel plate is fixedly installed on the circumferential outer wall of the plug A.

[0013] In at least some embodiments, the travel plate is also slidably installed inside the travel groove; a semi-circular plug hole A is opened at the top end of the plug A; a follower gear ring is fixedly installed at the outer end of the travel plate; the follower gear ring is meshed with the transmission gear ring.

[0014] In at least some embodiments, a plug B is fixedly installed at the bottom end inside the feeding pipe; a semi-circular plug hole B is opened at the top of the plug B; a driving motor is fixedly installed on the outer wall of the treatment chamber; a filtering lower chamber is fixedly installed at the center position of the top of the treatment chamber.

[0015] In at least some embodiments, a collecting member is fixedly installed on the circumferential outer wall of the filtering lower chamber; a discharge port is opened at the front end of the collecting member; the bottom end inside the collecting member is of a front-low and rear-high structure; a driving lead screw is rotatably installed at the rear end of the collecting member.

[0016] In at least some embodiments, the bottom end of the driving lead screw is connected to the output shaft of the driving motor; a grille assembly is fixedly installed at the top end inside the filtering lower chamber; the grille assembly is composed of a plurality of rings with different diameters, and the plurality of rings are slidably connected from the inside to the outside in sequence from small to large.

[0017] In at least some embodiments, a connecting rod is fixedly connected to the top of the circular ring at the center of the grille assembly; a filtering upper cavity is arranged above the filtering lower cavity; the filtering upper cavity is connected to the top end of the connecting rod; and a connecting piece is fixedly installed on the outer wall of the filtering upper cavity.

[0018] In at least some embodiments, a telescopic pipe is fixedly connected to the top end of the filtering upper cavity; the telescopic pipe is connected to the biogas digester pipeline; a transmission pull plate is fixedly installed at the bottom of the connecting piece; and a transmission pull column is fixedly installed at the front end of the transmission pull plate.

[0019] In at least some embodiments, the front end of the transmission pull column is in a hemispherical structure; a transmission shaft is rotatably installed at the rear side of the bottom of the collecting member; a transmission column is fixedly installed on the circumferential outer wall of the transmission shaft; and a transmission groove is formed on the circumferential outer wall of the transmission column.

[0020] In at least some embodiments, the transmission groove is composed of a semi-spiral groove and a vertical groove; the hemispherical structure of the transmission pull column is also slidably installed inside the transmission groove; a transmission gear is fixedly installed at the bottom end of the transmission shaft; and the transmission gear is also meshed with a transmission toothed ring.

[0021] In at least some embodiments, the following steps are included:

[0022] I. Discharge the wastewater inside the biogas digester into the filtering cavity jointly composed of the filtering upper cavity and the filtering lower cavity through the telescopic pipe, so that the grille assembly inside the filtering cavity intercepts the solid waste in the wastewater, and enables the preliminarily filtered wastewater to enter the treatment cavity.

[0023] II. After the preliminarily filtered wastewater enters the treatment cavity, drive the mixing shaft and the mixing member to rotate through the mixing motor, so that the mixing member accelerates the mixing of the wastewater and the added flocculant through rotation.

[0024] III. Treat the intercepted solid waste. Drive the driving screw rod to rotate through the driving motor, so that the driving screw rod drives the top ends of the filtering upper cavity and the connecting rod to move upward under the action of the connecting piece, so that the bottom end of the connecting rod pulls upward the circular ring at the center of the grille assembly, and finally enables the multiple circular rings of the grille assembly to be sequentially stressed and rise to form a conical structure, so that the solid waste on the grille assembly slides into the collecting member by utilizing the conical structure and under the action of inertia.

[0025] IV. When the connecting piece moves upward, the connecting piece will also drive the transmission pull plate and the transmission pull column upward, causing the transmission pull column to drive the transmission shaft and the transmission gear to rotate by utilizing the semi - helical structure of the transmission groove, causing the transmission gear to drive the follower gear ring, the stroke plate and the plug A to rotate under the action of the transmission gear ring, connecting the plug hole A with the plug hole B, so that the flocculant inside the flocculant chamber is fed along the feeding pipe;

[0026] V. After the flocculant enters the interior of the connecting hole through the feeding pipe, the mixing shaft will drive the feeding turntable to rotate during the stirring process, causing the feeding holes on the feeding turntable to intermittently communicate with the connecting hole for replenishing materials, and spreading the replenished flocculant into the treatment chamber to add flocculant to the wastewater;

[0027] VI. Collect the solid waste that slides into the interior of the collection piece, and mix and turn over the collected solid waste with items such as straw sawdust, etc., to ferment the solid waste. The fermented solid waste is processed into organic fertilizer through processing;

[0028] VII. Discharge the treated - up wastewater.

[0029] The present invention provides a solid waste interception and treatment system, which has the following beneficial effects:

[0030] Since the grid assembly in the present invention is composed of multiple sliding rings, when the upper filtration chamber is opened, the multiple rings of the grid assembly will be pulled upward in sequence from the inside to the outside. Affected by the upward pull, the multiple rings form a conical structure. Thus, the solid waste on the grid assembly will utilize the grid assembly under the conical structure and slide into the interior of the collection piece under the action of inertia, thereby cleaning the solid waste on the grid assembly and preventing the continuous accumulation of waste from affecting the normal flow of wastewater.

[0031] When cleaning the solid waste on the grid assembly by opening the upper filtration chamber, the upward movement force of the upper filtration chamber will be converted into a rotational force by structures such as the conversion pull column and indirectly provided to the plug A, causing the plug A to rotate to connect the plug hole A and the plug hole B, so that the flocculant inside the flocculant chamber can enter the interior of the connecting hole through the feeding pipe, and then cooperate with the rotating mixing shaft and the feeding turntable to realize the delivery of the flocculant, facilitating the treatment of non - solid waste in the wastewater by the flocculant.

[0032] The present invention adopts a structure to link the work of regularly cleaning solid waste with the work of delivering flocculant together, enabling the present invention to complete the delivery of flocculant while regularly cleaning solid waste. In this way, a regular work step is directly omitted, the operation steps are reduced, and the usability of the present invention is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0034] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0035] In the accompanying drawings:

[0036] Figure 1 A schematic diagram of the closed state structure of the upper filtration chamber of the present application is shown;

[0037] Figure 2 A schematic diagram of the open state structure of the upper filtration chamber of the present application is shown;

[0038] Figure 3 A schematic diagram of the semi-sectional structure of the processing chamber of the present application is shown;

[0039] Figure 4 A schematic diagram of the structures of the upper filtration chamber and the lower filtration chamber of the present application is shown;

[0040] Figure 5 A schematic diagram of the structures of the flocculant chamber and the transmission gear ring of the present application is shown;

[0041] Figure 6 A schematic diagram of the semi-sectional structure of the blanking pipe of the present application is shown;

[0042] Figure 7 Shows the Figure 6 Schematic diagram of the enlarged structure of part A;

[0043] Figure 8 A schematic diagram of the method flow of the present application is shown;

[0044] List of reference numerals

[0045] 1. Processing chamber; 2. Mixing motor; 3. Mixing shaft; 4. Mixing member; 5. Blanking turntable; 6. Blanking hole; 7. Sealing seat; 8. Connecting hole; 9. Transmission gear ring; 10. Flocculant chamber;

[0046] 11. Blanking pipe; 12. Travel groove; 13. Plug A; 14. Travel plate; 15. Plug hole A; 16. Follow-up gear ring; 17. Plug B; 18. Plug hole B; 19. Driving motor; 20. Lower filtration chamber;

[0047] 21. Collection member; 22. Driving lead screw; 23. Grille assembly; 24. Connecting rod; 25. Upper filtration chamber; 26. Connecting member; 27. Telescopic pipe; 28. Transmission pull plate; 29. Transmission pull post; 30. Transmission shaft;

[0048] 31. Transmission post; 32. Transmission groove; 33. Transmission gear. Detailed Implementation Manner

[0049] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0050] Please refer to Figures 1 to 8 :[[]]END]]

[0051] Embodiment 1:

[0052] The present invention provides a solid waste interception and treatment system, including: a solid waste interception and treatment system, the treatment device includes a treatment chamber 1, and a mixing motor 2 is fixedly installed at the inner bottom end of the treatment chamber 1; a discharge pipe is fixedly connected to the right bottom of the treatment chamber 1; a mixing shaft 3 is rotatably installed at the central position of the inner bottom end of the treatment chamber 1; the bottom end of the mixing shaft 3 is connected to the output shaft of the mixing motor 2; mixing members 4 are fixedly installed on the circumferential outer wall of the mixing shaft 3; a blanking turntable 5 is fixedly installed at the top end of the mixing shaft 3; blanking holes 6 are arranged in a circumferential arrangement on the top of the blanking turntable 5; plugging seats 7 are fixedly installed on the circumferential inner wall of the treatment chamber 1 in a circumferential arrangement; the plugging seat 7 has a U-shaped structure, and a connection hole 8 is opened at the top of the plugging seat 7; a transmission gear ring 9 is rotatably installed on the plugging seat 7; a flocculant chamber 10 is fixedly installed on the outer periphery of the top of the treatment chamber 1; a blanking pipe 11 is fixedly installed at the bottom end of the flocculant chamber 10; the bottom end of the blanking pipe 11 is inserted into the interior of the treatment chamber 1; the bottom end of the blanking pipe 11 is also communicated with the connection hole 8; a travel groove 12 is opened on the circumferential outer wall of the blanking pipe 11; a plugging head A 13 is rotatably installed in the interior of the blanking pipe 11; a travel plate 14 is fixedly installed on the circumferential outer wall of the plugging head A 13.

[0053] By discharging the wastewater inside the biogas digester into the filter chamber jointly composed of the filter lower chamber 20 and the filter lower chamber 20 through the telescopic pipeline 27, the grille assembly 23 inside the filter chamber intercepts the solid waste in the wastewater, and the preliminarily filtered wastewater enters the inside of the treatment chamber 1. After the preliminarily filtered wastewater enters the inside of the treatment chamber 1, the mixing motor 2 drives the mixing shaft 3 and the mixing member 4 to rotate, so that the mixing member 4 accelerates the mixing of the wastewater and the added flocculant through rotation to treat the non-solid waste inside the wastewater. When it is necessary to clean the intercepted and discharged solid waste, the driving motor 19 is started to drive the driving screw rod 22 to rotate. Under the action of the connecting member 26, the driving screw rod 22 drives the filter upper chamber 25 and the top of the connecting rod 24 to move upward, so that the bottom end of the connecting rod 24 pulls upward the ring at the central part of the grille assembly 23. Finally, the multiple rings of the grille assembly 23 are forced to rise in sequence to form a conical structure, so that the solid waste on the grille assembly 23 slides into the inside of the collecting member 21 by using the conical structure and under the action of inertia.

[0054] Embodiment 2, on the basis of Embodiment 1, the travel plate 14 is also slidably installed inside the travel groove 12; a semicircular plug hole A15 is opened at the top end of the plug head A13; a follower gear ring 16 is fixedly installed at the outer end of the travel plate 14; the follower gear ring 16 is meshed and connected with the transmission gear ring 9; a plug head B17 is fixedly installed at the inner bottom end of the feed pipe 11; a semicircular plug hole B18 is opened at the top of the plug head B17; a driving motor 19 is fixedly installed on the outer wall of the treatment chamber 1; a filter lower chamber 20 is fixedly installed at the central position at the top of the treatment chamber 1; a collecting member 21 is fixedly installed on the circumferential outer wall of the filter lower chamber 20; a discharge port is opened at the front end of the collecting member 21; the inner bottom end of the collecting member 21 is of a structure that is lower at the front and higher at the rear; a driving screw rod 22 is rotatably installed at the rear end of the collecting member 21; the bottom end of the driving screw rod 22 is connected to the output shaft of the driving motor 19; a grille assembly 23 is fixedly installed at the inner top end of the filter lower chamber 20; the grille assembly 23 is composed of multiple rings with different diameters, and the multiple rings are slidably connected in sequence from small to large from the inside to the outside.

[0055] When the connecting member 26 moves upward, the connecting member 26 also drives the transmission pull plate 28 and the transmission pull column 29 to move upward, so that the transmission pull column 29 drives the transmission shaft 30 and the transmission gear 33 to rotate by using the semi-helical structure of the transmission groove 32, and the transmission gear 33 drives the follower gear ring 16, the stroke plate 14 and the plugging head A13 to rotate under the action of the transmission gear ring 9, so that the plugging hole A15 is communicated with the plugging hole B18, thereby enabling the flocculant inside the flocculant chamber 10 to enter the inside of the connecting hole 8 along the feed pipe 11. At this time, the mixing shaft 3 drives the feed turntable 5 to rotate during the stirring process, so that the feed holes 6 on the feed turntable 5 are intermittently communicated with the connecting hole 8 for feeding, and the added flocculant is sprinkled into the treatment chamber 1 to add flocculant to the wastewater. In this way, while the solid waste is cleaned up, the feeding of the flocculant is also completed.

[0056] Embodiment 3, on the basis of Embodiment 2, a connecting rod 24 is fixedly connected to the top of the ring at the center of the grille assembly 23; a filter upper chamber 25 is arranged above the filter lower chamber 20; the filter upper chamber 25 is connected to the top end of the connecting rod 24; a connecting member 26 is fixedly installed on the outer wall of the filter upper chamber 25; a telescopic pipe 27 is fixedly connected to the top end of the filter upper chamber 25; the telescopic pipe 27 is connected to the biogas digester pipeline; a transmission pull plate 28 is fixedly installed at the bottom of the connecting member 26; a transmission pull column 29 is fixedly installed at the front end of the transmission pull plate 28; the front end of the transmission pull column 29 is in a hemispherical structure; a transmission shaft 30 is rotatably installed at the rear side of the bottom of the collecting member 21; a transmission column 31 is fixedly installed on the circumferential outer wall of the transmission shaft 30; a transmission groove 32 is formed on the circumferential outer wall of the transmission column 31; the transmission groove 32 is composed of a semi-helical groove and a vertical groove; the hemispherical structure of the transmission pull column 29 is also slidably installed inside the transmission groove 32; a transmission gear 33 is fixedly installed at the bottom end of the transmission shaft 30; the transmission gear 33 is also meshed with the transmission gear ring 9.

[0057] By driving the filter upper chamber 25 to be restored and closed by the driving motor 19, at the same time, the feed pipe 11 will be in a closed state, so that the present invention returns to the normal treatment state to continue to treat the waste inside the wastewater, and then collect the solid waste that slides into the collecting member 21, and mix and turn over the collected solid waste with items such as straw sawdust to ferment the solid waste. After fermentation, the solid waste is processed into organic fertilizer, and after the wastewater treatment in the treatment chamber 1 is completed, the qualified wastewater can be discharged.

[0058] Among them, it includes the following steps:

[0059] 1. Drain the wastewater inside the biogas digester into the filter chamber jointly composed of the filter upper chamber 25 and the filter lower chamber 20 through the telescopic pipe 27, so that the grille assembly 23 inside the filter chamber intercepts the solid waste in the wastewater, and enables the preliminarily filtered wastewater to enter the inside of the treatment chamber 1;

[0060] II. After the preliminarily filtered wastewater enters the interior of the treatment chamber 1, the mixing motor 2 drives the mixing shaft 3 and the mixing member 4 to rotate, so that the mixing member 4 accelerates the mixing of the wastewater and the added flocculant through rotation;

[0061] III. For the treatment of the intercepted solid waste, the driving motor 19 drives the driving lead screw 22 to rotate, so that the driving lead screw 22 drives the upper filter chamber 25 and the top of the connecting rod 24 to move upward under the action of the connecting member 26, and the bottom end of the connecting rod 24 pulls upward the ring at the central part of the grille assembly 23, and finally the multiple rings of the grille assembly 23 are sequentially forced to rise to form a conical structure, so that the solid waste on the grille assembly 23 slides into the interior of the collecting member 21 by utilizing the conical structure and the inertia;

[0062] IV. When the connecting member 26 moves upward, the connecting member 26 also drives the transmission pull plate 28 and the transmission pull column 29 to move upward, so that the transmission pull column 29 drives the transmission shaft 30 and the transmission gear 33 to rotate by utilizing the semi-helical structure of the transmission groove 32, and the transmission gear 33 drives the follower gear ring 16, the stroke plate 14 and the plugging head A 13 to rotate under the action of the transmission gear ring 9, so that the plugging hole A 15 communicates with the plugging hole B 18, and thus the flocculant in the flocculant chamber 10 is discharged along the feeding pipe 11;

[0063] V. After the flocculant enters the interior of the connecting hole 8 through the feeding pipe 11, the mixing shaft 3 drives the feeding turntable 5 to rotate during the stirring process, so that the feeding holes 6 on the feeding turntable 5 intermittently communicate with the connecting hole 8 for supplementary feeding, and the supplemented flocculant is scattered into the treatment chamber 1 to add flocculant to the wastewater;

[0064] VI. Collect the solid waste that slides into the interior of the collecting member 21, and mix and turn over the collected solid waste with items such as straw sawdust, so that the solid waste ferments, and the fermented solid waste is processed into organic fertilizer;

[0065] VII. Discharge the treated and up-to-standard wastewater.

Claims

1. A solid waste interception and treatment system, comprising: An integrated processing device, characterized in that the processing device comprises: A processing chamber (1), at the inner bottom end of which a mixing motor (2) is installed; A discharge pipe is connected to the right bottom of the processing chamber (1); A mixing shaft (3) is rotatably installed at the central position of the inner bottom end of the processing chamber (1); The bottom end of the mixing shaft (3) is connected to the output shaft of the mixing motor (2); Mixing members (4) are fixedly installed on the circumferential outer wall of the mixing shaft (3); A blanking turntable (5) is fixedly installed at the top end of the mixing shaft (3); Blanking holes (6) are arranged in a circumferential arrangement on the top of the blanking turntable (5); Sealing seats (7) are fixedly installed in a circumferential arrangement on the circumferential inner wall of the processing chamber (1); The sealing seat (7) has a U-shaped structure, and a connection hole (8) is opened at the top of the sealing seat (7); A transmission gear ring (9) is rotatably installed on the sealing seat (7); A flocculant chamber (10) is fixedly installed on the outer periphery of the top of the processing chamber (1); A blanking pipe (11) is fixedly installed at the bottom end of the flocculant chamber (10); The bottom end of the blanking pipe (11) is inserted into the interior of the processing chamber (1); The bottom end of the blanking pipe (11) is also communicated with the connection hole (8); A travel groove (12) is opened on the circumferential outer wall of the blanking pipe (11); A plug A (13) is rotatably installed in the interior of the blanking pipe (11); A travel plate (14) is fixedly installed on the circumferential outer wall of the plug A (13); The travel plate (14) is also slidably installed inside the travel groove (12); a semicircular plug hole A (15) is formed at the top end of the plug head A (13); a follower gear ring (16) is fixedly installed at the outer end of the travel plate (14); the follower gear ring (16) is meshed and connected with the drive gear ring (9); a plug head B (17) is fixedly installed at the inner bottom end of the material discharge pipe (11); a semicircular plug hole B (18) is formed at the top of the plug head B (17); a drive motor (19) is fixedly installed on the outer wall of the treatment chamber (1); a filter lower chamber (20) is fixedly installed at the center of the top of the treatment chamber (1); a collection member (21) is fixedly installed on the circumferential outer wall of the filter lower chamber (20); a discharge port is formed at the front end of the collection member (21); the inner bottom end of the collection member (21) is of a structure with the front end lower and the rear end higher; a drive lead screw (22) is rotatably installed at the rear end of the collection member (21); the bottom end of the drive lead screw (22) is connected to the output shaft of the drive motor (19); a grid assembly (23) is fixedly installed at the inner top end of the filter lower chamber (20); the grid assembly (23) is composed of a plurality of rings with different diameters, and the plurality of rings are slidably connected to each other from inside to outside in sequence from small to large; a connecting rod (24) is fixedly connected to the top of the ring at the center of the grid assembly (23); a filter upper chamber (25) is arranged above the filter lower chamber (20); the filter upper chamber (25) is connected to the top end of the connecting rod (24); a connecting member (26) is fixedly installed on the outer wall of the filter upper chamber (25).

2. The solid waste interception and treatment system according to claim 1, characterized in that The top end of the filter upper chamber (25) is fixedly connected with a telescopic pipe (27); the telescopic pipe (27) is connected to the biogas digester pipeline; a transmission pull plate (28) is fixedly installed at the bottom of the connecting member (26); a transmission pull column (29) is fixedly installed at the front end of the transmission pull plate (28).

3. A solid waste interception and treatment system according to claim 2, characterized in that, The front end of the transmission pull column (29) is of a hemispherical structure; a transmission shaft (30) is rotatably installed at the rear side of the bottom of the collection member (21); a transmission column (31) is fixedly installed on the circumferential outer wall of the transmission shaft (30); a transmission groove (32) is formed on the circumferential outer wall of the transmission column (31).

4. The solid waste interception and treatment system according to claim 3, wherein The transmission groove (32) is composed of a semi-spiral groove and a vertical groove; the hemispherical structure of the transmission pull column (29) is also slidably installed inside the transmission groove (32); a transmission gear (33) is fixedly installed at the bottom end of the transmission shaft (30); the transmission gear (33) is also meshed and connected with the drive gear ring (9).

5. The operating method of a solid waste interception and treatment system according to claim 4, characterized in that, Including the following steps:

1. Drain the wastewater inside the biogas digester into the filter chamber jointly composed of the filter upper chamber (25) and the filter lower chamber (20) through the telescopic pipe (27), so that the grid assembly (23) inside the filter chamber intercepts the solid waste in the wastewater, and the preliminarily filtered wastewater enters the inside of the treatment chamber (1). II. After the initially filtered wastewater enters the interior of the treatment chamber (1), the mixing motor (2) drives the mixing shaft (3) and the mixing member (4) to rotate, causing the mixing member (4) to accelerate the mixing of the wastewater and the added flocculant through rotation; III. For the treatment of the intercepted solid waste, the driving motor (19) drives the driving lead screw (22) to rotate, causing the driving lead screw (22), under the action of the connecting member (26), to drive the top of the upper filtering chamber (25) and the connecting rod (24) to move upward, causing the bottom end of the connecting rod (24) to pull upward the ring at the central part of the grid assembly (23). Eventually, the multiple rings of the grid assembly (23) are sequentially forced to rise to form a conical structure, causing the solid waste on the grid assembly (23) to slide into the interior of the collection member (21) by utilizing the conical structure and the inertial force; IV. When the connecting member (26) moves upward, the connecting member (26) also drives the transmission pull plate (28) and the transmission pull column (29) to move upward, causing the transmission pull column (29) to drive the transmission shaft (30) and the transmission gear (33) to rotate by utilizing the semi-helical structure of the transmission groove (32), causing the transmission gear (33), under the action of the transmission tooth ring (9), to drive the follower tooth ring (16), the stroke plate (14), and the plug A (13) to rotate, causing the plug hole A (15) to communicate with the plug hole B (18), thereby enabling the flocculant in the flocculant chamber (10) to be discharged along the feed pipe (11); V. After the flocculant enters the interior of the connection hole (8) through the feed pipe (11), the mixing shaft (3) drives the feed turntable (5) to rotate during the stirring process, causing the feed holes (6) on the feed turntable (5) to intermittently communicate with the connection hole (8) for supplementary feeding, and scattering the supplemented flocculant into the treatment chamber (1) to add flocculant to the wastewater; VI. Collect the solid waste that has slid into the interior of the collection member (21), and mix and turn over the collected solid waste with straw sawdust items to ferment the solid waste. The fermented solid waste is processed into organic fertilizer; VII. Discharge the wastewater that has reached the standard for treatment.

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