Automatic dredging and loss preventing device for pipeline blockage of anaerobic ammonia oxidation reactor

Abstract

The invention relates to the technical field of sewage treatment, and particularly discloses an anaerobic ammonia oxidation reactor pipeline blockage automatic dredging and loss prevention device which comprises a reactor body, a liquid inlet pipe is arranged on the side face of the lower end of the reactor body, a three-phase separator is arranged at the upper end of the reactor body, and overflow holes are formed in the three-phase separator. An overflow hole is formed in the reactor body, the outer end of the overflow hole is connected with an overflow pipe, a pipeline switching mechanism is arranged below the overflow pipe, a pipeline dredging mechanism is arranged at the upper end of the pipeline switching mechanism, and a granular sludge returning mechanism communicated with the reactor body is arranged under the pipeline dredging mechanism; according to the invention, not only can the automatic dredging treatment be realized when the pipeline is blocked, but also the granular sludge flowing down in the dredging treatment process can be intercepted, falls down and is fed into the reactor again for use, so that the whole anaerobic ammonia oxidizer can stably operate in the whole process; moreover, the rapid proliferation of anaerobic ammonium oxidation bacteria in the reactor can be realized, and the reaction treatment efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and specifically discloses an automatic unblocking and anti-leakage device for pipe blockage in an anaerobic ammonia oxidation reactor. Background Technology

[0002] Anaerobic ammonia oxidation (AAO), as a novel biological nitrogen removal process, can save carbon sources and achieve efficient nitrogen removal in the treatment of domestic wastewater with low carbon-to-nitrogen ratios, especially in the treatment of wastewater with high ammonia nitrogen. It has been widely used in the treatment of high ammonia nitrogen wastewater. However, the sludge loss caused by the floating of granular sludge in AAO is a problem that urgently needs to be solved during the rapid start-up and proliferation of AAO sludge. The large amount of floating sludge not only makes the treatment effect unstable but also easily causes problems such as pipe blockage, bringing great trouble to operation.

[0003] Patent application number 2017104321772 discloses an anaerobic reactor for treating wastewater, comprising: a reaction vessel including an inlet for providing influent to be treated into the reaction vessel, wherein the reaction vessel is configured to treat the influent received from the inlet using anaerobic decomposition; and a three-phase separator disposed above and in fluid communication with the reaction vessel, wherein the separator is configured to receive effluent from the reaction vessel, wherein the effluent includes solids, liquids, and gases. While the three-phase separator at the top of this anaerobic reactor can, to some extent, separate anaerobic ammonia oxidizing bacteria granular sludge, wastewater, and waste gas, allowing most of the anaerobic ammonia oxidizing bacteria granular sludge to settle into the reactor, some anaerobic ammonia oxidizing bacteria granular sludge will still be discharged along with the wastewater from the outlet into the drainage pipe. This not only causes the loss of anaerobic ammonia oxidizing bacteria granular sludge but, in severe cases, can even lead to blockage of the drainage pipe, rendering the entire reactor unable to operate normally. In view of the technical problems of existing anaerobic ammonia oxidizers, such as serious loss of anaerobic ammonia oxidizing bacteria granular sludge caused by discharge with sewage, and the resulting pipe blockage, this application proposes an automatic unblocking and anti-loss device for anaerobic ammonia oxidizer pipes that can effectively solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic unblocking and anti-leakage device for anaerobic ammonia oxidation reactor pipeline blockage, in order to solve the technical problem of serious loss and pipeline blockage caused by the discharge of anaerobic ammonia oxidation bacteria granular sludge along with sewage in existing anaerobic ammonia oxidizers.

[0005] This invention is achieved through the following technical solution:

[0006] An automatic unblocking and leak prevention device for pipe blockage in an anaerobic ammonia oxidation reactor includes a reactor body. An inlet pipe is provided on the lower side of the reactor body, and a three-phase separator is provided on the upper end. An overflow hole is provided on the three-phase separator, and an overflow pipe is connected to the outer end of the overflow hole. A pipe switching mechanism is provided below the overflow pipe, and a pipe unblocking mechanism is provided above the pipe switching mechanism. A granular sludge return mechanism connected to the reactor body is provided directly below the pipe unblocking mechanism.

[0007] The pipeline switching mechanism includes an outer cylinder fixed to the side of the reactor body. Turntables are provided at both the upper and lower ends of the inner cavity of the outer cylinder. At least two vertical pipes are arranged in a circular array between the two turntables. A drive device for driving the turntables to rotate is provided at the upper end of the outer cylinder. An upper connecting pipe and a lower connecting pipe are fixed at the upper and lower ends of the outer cylinder, respectively. The upper connecting pipe and the lower connecting pipe are simultaneously sealed and connected to the upper and lower openings of one of the vertical pipes. The upper connecting pipe is connected to the end of the overflow pipe. The end of the lower connecting pipe is connected to the drain pipe. A filter plate is provided at the end of the lower connecting pipe that is connected to the vertical pipe.

[0008] The pipe clearing mechanism includes an outer cylindrical shell fixed to the upper surface of the outer cylinder. A collection and discharge hopper is connected to the lower surface of the outer cylinder directly below the outer cylindrical shell. The collection and discharge hopper is vertically aligned with the granular sludge return mechanism. A T-shaped pipe end is connected to the upper end of the outer cylindrical shell. One end of the T-shaped pipe end is connected to a water inlet pipe. The end of the water inlet pipe is connected to a liquid storage tank via a liquid pump. The other end of the T-shaped pipe end is connected to a telescopic pipe located in the outer cylindrical shell. The lower end of the telescopic pipe is connected to a jet shell. Multiple inclined downward jet holes are evenly opened on the outer side of the jet shell.

[0009] As a further feature of the above scheme, a scraping disc is connected to the lower end of the jet shell, and the diameter of the scraping disc is equal to the inner diameter of the vertical pipe. A conical head is connected to the lower end of the scraping disc.

[0010] As a further provision of the above scheme, the pipe dredging mechanism also includes a traction component for retrieving the telescopic pipe. The traction component includes a traction rope arranged along the central axis of the telescopic pipe. The lower end of the traction rope is connected to the bottom wall of the jet housing, and the upper end is arranged through the top of the T-shaped pipe end. A sealing element is provided at the position where the traction rope passes through the T-shaped pipe end. The outer end of the traction rope is connected to a winding component.

[0011] As a further provision of the above scheme, the collection assembly includes a winding motor disposed on top of the three-phase separator. The motor shaft of the winding motor is connected to a winding wheel via a one-way transmission component. The end of the traction rope is connected to the winding wheel. The top of the outer cylindrical shell is provided with a guide wheel that guides the traction rope to the winding wheel.

[0012] As a further provision of the above scheme, the granular sludge return mechanism includes a radial cylinder connected to the lower end of the reactor body. The upper surface of the outer end of the radial cylinder has a receiving hole located directly below the collection hopper. The lower surface of the inner end of the radial cylinder near the reactor body has a filter hole. A movable cylinder is slidably fitted inside the inner wall of the radial cylinder. Both ends of the movable cylinder are sealed. The outer end face of the radial cylinder is provided with a telescopic component for pushing the movable cylinder. The upper surface of the movable cylinder has a sludge discharge hole aligned with the receiving hole, and the lower surface has a return discharge hole aligned with the filter hole.

[0013] As a further feature of the above scheme, a liquid collection hopper is connected to the lower surface of the radial cylinder located at the filter hole position, and the liquid collection hopper is equipped with a flushing filtrate drain pipe.

[0014] As a further feature of the above scheme, there are 2-4 vertical pipes between the two turntables.

[0015] As a further feature of the above scheme, the upper and lower openings of each vertical pipe are flush with the surface of the turntable, and the opening surfaces of the upper and lower connecting pipes are provided with sealing rings that press against the surface of the turntable.

[0016] As a further feature of the above solution, the upper connecting pipe is equipped with a pipe blockage detection component, which is electrically connected to a control cabinet.

[0017] As a further provision of the above scheme, the pipeline blockage detection component includes a force sensor installed on the top of the upper connecting pipe. The working surface of the force sensor is connected to a slide rod arranged along the central axis of the upper connecting pipe. A buoyancy block is sleeved in the slide rod. A spring is connected between the buoyancy block and the force sensor. The force sensor is connected to the signal input terminal of the control cabinet. The drive device and the liquid pump are connected to the signal output terminal of the control cabinet.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipes disclosed in this invention, during normal operation, connects one vertical pipe of the pipe switching mechanism to the wastewater discharge pipeline system. When the vertical pipe becomes blocked, the pipe switching mechanism is activated to rotate the vertical pipe to align with the pipe unblocking mechanism, and another vertical pipe is connected to the pipeline system to maintain the normal operation of the entire reactor. Subsequently, the pipe unblocking mechanism is activated to unblock the vertical pipe. During the unblocking process, the liquid and biological sludge particles that fall down will enter the granular sludge return mechanism for separation. After separation, the biological sludge particles are sent back to the reactor for anaerobic ammonia oxidation reaction. The entire device can not only automatically unblock pipes when they are blocked, but also intercept the granular sludge that flows down during the unblocking process and send it back to the reactor for reuse. This allows the entire anaerobic ammonia oxidizer to operate stably throughout the process and enables the rapid proliferation of anaerobic ammonia oxidizing bacteria in the reactor, thereby improving the reaction efficiency.

[0020] 2. The pipe dredging mechanism in this invention adopts a novel structural design. During operation, a liquid pump and pipeline continuously inject flushing fluid into the telescopic pipe, ensuring that the inflow velocity of the liquid is greater than the outflow velocity. This forces the telescopic pipe downward under hydraulic pressure, and then the conical head and scraper plate forcefully push and brush the blocked parts in the vertical pipe to achieve the dredging effect. At the same time, due to the high hydraulic pressure, the flushing fluid is also discharged from the jet holes on the jet housing and flushes the inner wall of the vertical pipe, so that the vertical pipe can be effectively cleaned and dredged under the dual action. The entire pipe dredging mechanism has a novel structural design and excellent dredging effect on the blockage of biological sludge particles inside the pipe.

[0021] 3. The granular sludge return mechanism in this invention is designed with radial cylinder, moving cylinder, and telescopic components. During normal operation of the reactor, the moving cylinder can prevent the radial cylinder from being blocked, thus preventing the liquid inside the reactor from flowing out. During the pipeline dredging process, the moving cylinder can receive the mixed liquid that falls during the dredging process, and then after separation, the biological sludge particles are sent back into the reactor from the inner end of the radial cylinder. There is no outflow of liquid inside the reactor during the entire process. The entire granular sludge return mechanism has an ingenious structural design and a good sludge return effect.

[0022] 4. The present invention further includes a pipe blockage detection component, which uses the process of liquid level rise after pipe blockage to push buoyancy block to rise. Then, the buoyancy block will transmit the force to the force sensor through the spring, and the force sensor will feed the signal back to the control cabinet. The control cabinet can make subsequent processing actions in a timely manner according to the received signal, thereby realizing the automatic unblocking process of anaerobic ammonia oxidizer pipe blockage. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0025] Figure 2 This is a schematic diagram of the second-angle three-dimensional structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal planar structure of the reactor body, three-phase separator, etc. in this invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the granular sludge return mechanism in this invention;

[0028] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the pipeline switching mechanism in this invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the lower connecting pipe, drain pipe, and filter plate in this invention;

[0030] Figure 7 This is a three-dimensional structural diagram of the upper connecting pipe and pipeline blockage detection component in this invention;

[0031] Figure 8 This is a three-dimensional structural diagram of the pipe clearing mechanism in this invention;

[0032] Figure 9 This is a three-dimensional structural diagram of the interior of the outer cylindrical shell in this invention;

[0033] Figure 10 This is a schematic diagram of the internal planar structure of the telescopic tube, jet shell, and traction rope in this invention.

[0034] in:

[0035] 100 - Reactor body; 101 - Liquid inlet pipe;

[0036] 200-Three-phase separator, 201-Overflow hole, 202-Overflow pipe;

[0037] 300-Pipe switching mechanism, 301-Outer cylinder, 302-Turntable, 303-Vertical pipe, 304-Drive device, 305-Upper connecting pipe, 306-Lower connecting pipe, 3061-Sealing ring, 307-Drain pipe, 308-Filter plate, 309-Collection hopper;

[0038] 400-Pipe dredging mechanism, 401-Outer cylindrical shell, 402-T-shaped pipe end, 403-Water inlet pipe, 404-Liquid pump, 405-Storage tank, 406-Telescopic pipe, 407-Jet shell, 4071-Jet hole, 408-Scraper plate, 409-Conical head, 410-Traction rope, 411-Rewinding motor, 412-Rewinding wheel, 413-Guide wheel;

[0039] 500-Granular sludge return mechanism, 501-Radial cylinder, 502-Material receiving hole, 503-Filter hole, 504-Moving cylinder, 505-Telescopic component, 506-Sludge drop hole, 507-Return discharge hole, 508-Liquid collection hopper, 509-Flush filtrate discharge pipe.

[0040] 600-Pipe blockage detection assembly, 601-Force sensor, 602-Slide rod, 603-Buoyancy block, 604-Spring; 700-Control cabinet. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-10 This application will be described in detail with reference to the embodiments.

[0043] Example 1

[0044] Example 1 discloses an automatic unblocking and leak-prevention device for anaerobic ammonia oxidation reactor pipeline blockage, see attached document. Figure 1 Appendix Figure 2 and attached Figure 3 The reactor includes a reactor body 100, with an inlet pipe 101 on the lower side of the reactor body 100 and a three-phase separator 200 on the upper side. An overflow hole 201 is opened on the upper side of the three-phase separator 200, and an overflow pipe 202 is connected to the outer end of the overflow hole 201, so that the liquid inside the reactor body 100 can flow out from the overflow pipe 202.

[0045] A pipe switching mechanism 300 is provided below the overflow pipe 202, a pipe clearing mechanism 400 is provided at the upper end of the pipe switching mechanism 300, and a granular sludge return mechanism 500 connected to the reactor body 100 is provided directly below the pipe clearing mechanism 400.

[0046] Reference Appendix Figure 5 and attached Figure 6 The pipeline switching mechanism 300 includes an outer cylinder 301 disposed beside the reactor body 100, which is fixedly connected to the reactor body 100 via upper and lower connecting frames. Turntables 302 are disposed at both the upper and lower ends of the inner cavity of the outer cylinder 301, and at least two vertical pipes 303 are arranged in a circular array between the two turntables 302. Specifically, there are 2-4 vertical pipes 303 between the two turntables 302; in this figure, there are three vertical pipes 303. A drive device 304 for driving the turntables 302 to rotate is also disposed at the upper end of the outer cylinder 301. This drive device 304 consists of a motor and a reducer, so that under the action of the drive device 304, the upper and lower turntables 302 and the three vertical pipes 303 rotate at a fixed angle inside the outer cylinder 301, thereby switching the vertical pipe 303 into use.

[0047] An upper connecting pipe 305 and a lower connecting pipe 306 are fixed at the upper and lower ends of the outer cylinder 301, respectively. The upper connecting pipe 305 and the lower connecting pipe 306 are simultaneously sealed and connected to the upper and lower openings of one of the vertical pipes 303. The upper connecting pipe 305 is connected to the end of the overflow pipe 202, and the end of the lower connecting pipe 306 is connected to the drain pipe 307. A filter plate 308 is provided at the end of the lower connecting pipe 306 that is connected to the vertical pipe 303. In order to ensure the smooth switching of the vertical pipe 303 and the sealing of the entire pipeline system after switching, the upper and lower openings of each vertical pipe 303 are flush with the surface of the turntable 302. Then, the opening surfaces of the upper connecting pipe 305 and the lower connecting pipe 306 are provided with sealing rings 3061 that are pressed against the surface of the turntable 302. The design of the aforementioned pipeline switching mechanism 300 allows a vertical pipeline 303 to be connected to the upper connecting pipe 305 and the lower connecting pipe 306, forming a pipeline system. Liquid flowing down from the overflow pipe 202 can flow in this pipeline system and be discharged directionally by the drain pipe 307. At the same time, the design of the filter plate 308 can intercept the overflowing biological mud particles and prevent them from being lost.

[0048] Reference Appendix Figure 8 Appendix Figure 9 and attached Figure 10The pipe dredging mechanism 400 includes an outer cylindrical shell 401 fixed to the upper surface of the outer cylinder 301. The lower opening of the outer cylindrical shell 401 is connected to the outer cylinder 301. A collection hopper 309 is connected to the lower surface of the outer cylinder 301 directly below the outer cylindrical shell 401. The collection hopper 309 is vertically aligned with the granular sludge return mechanism 500. A T-shaped pipe end 402 is connected to the upper end of the outer cylindrical shell 401. One end of the T-shaped pipe end 402 is connected to a water inlet pipe 403. The end of the water inlet pipe 403 is connected to a liquid storage tank 405 via a liquid pump 404. The liquid storage tank 405 is filled with a low-oxygen flushing solution. Then, a telescopic pipe 406 located in the outer cylindrical shell 401 is connected to the other end of the T-shaped pipe end 402. A jet shell 407 is connected to the lower end of the telescopic pipe 406. The jet housing 407 is cylindrical in shape, and multiple downward-sloping jet holes 4071 are evenly distributed on the outer surface of the jet housing 407. Finally, a scraper disc 408 is connected to the lower end of the jet housing 407, and the diameter of the scraper disc 408 is equal to the inner diameter of the vertical pipe 303. A conical head 409 is connected to the lower end of the scraper disc 408.

[0049] Upon receiving a dredging signal, the aforementioned pipe dredging mechanism 400 will rotate the vertical pipe 303 in the previous pipeline system to directly below the outer cylindrical shell 401, while other vertical pipes 303 will replace the previous ones and be connected to the pipeline system for use. Subsequently, the liquid pump 404 will be activated to send the flushing liquid in the storage tank 405 through the water inlet pipe 403 into the T-shaped pipe end 402, and then from the T-shaped pipe end 402 into the telescopic pipe 406. At the same time, the flow rate of the liquid pumped by the liquid pump 404 is greater than the total loss from all the jet holes 4071 on the jet shell 407, thereby causing the telescopic pipe 406 to begin to extend downward under high hydraulic pressure. During its downward extension, the conical head 409 and the scraper plate 408 will forcefully push and brush the blocked parts in the vertical pipe 303, achieving the dredging effect. At the same time, due to the high hydraulic pressure, the flushing fluid in its telescopic pipe 406 will also be discharged from the jet hole 4071 and flush the inner wall of the vertical pipe 303, so that the vertical pipe 303 can be effectively cleaned and dredged under the dual action.

[0050] Reference Appendix Figure 3 and attached Figure 4The granular sludge return mechanism 500 includes a radial cylinder 501 connected to the lower end of the reactor body 100. A receiving hole 502, located directly below the collecting hopper 309, is provided on the upper surface of the outer end of the radial cylinder 501. A filter hole 503 is provided on the lower surface of the inner end of the radial cylinder 501 near the reactor body 100. A movable cylinder 504 is slidably fitted into the inner wall of the radial cylinder 501. Both ends of the movable cylinder 504 are sealed, allowing it to seal the radial cylinder 501 while moving within it. A telescopic member 505 is provided on the outer end face of the radial cylinder 501. This telescopic member 505 can be a hydraulic telescopic rod or an electric push rod, and its movable end is connected to the movable cylinder 504 to push the movable cylinder 504. A mud discharge hole 506 aligned with the receiving hole 502 is provided on the upper surface of the moving cylinder 504, and a return discharge hole 507 aligned with the filter hole 503 is provided on the lower surface. Finally, in this embodiment, a liquid collection hopper 508 is connected to the lower surface of the radial cylinder 501 at the location of the filter hole 503, and the liquid collection hopper 508 is provided with a flushing filtrate discharge pipe 509.

[0051] The aforementioned granular sludge return mechanism 500 is designed to receive the biological sludge particles and flushing liquid falling from the vertical pipe 303 during the operation of the pipe clearing mechanism 400. These particles are then fed into the moving cylinder 504 through the receiving hole 502 and the sludge discharge hole 506. The flushing liquid is then discharged through the return discharge hole 507 and the filter hole 503, while the biological sludge particles are retained in the moving cylinder 504. When the pipe clearing mechanism 400 stops operating, the telescopic component 505 is activated to push the moving cylinder 504 along the inner wall of the radial cylinder 501 into the reactor body 100. This ensures that the return discharge hole 507 at the lower end of the moving cylinder 504 is fully inserted into the reactor body 100. At this point, the sludge discharge hole 506 at the upper end of the moving cylinder 504 is sealed by the inner wall of the radial cylinder 501, and the biological sludge particles retained inside the moving cylinder 504 are reintroduced into the reactor body 100 through the return discharge hole 507, effectively preventing the loss of anaerobic ammonia-oxidizing bacteria biological sludge particles.

[0052] Example 2

[0053] Example 2 discloses an automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipes that is optimized based on the technical solution in Example 1. The similarities between Example 2 and Example 1 are not explained again.

[0054] Reference Appendix Figure 1 Appendix Figure 8 Appendix Figure 9 and attached Figure 10In this embodiment 2, the pipe clearing mechanism 400 also includes a traction assembly for retracting the telescopic pipe 406. This traction assembly includes a traction rope 410 arranged along the central axis of the telescopic pipe 406. The lower end of the traction rope 410 is connected to the bottom wall of the jet housing 407, and its upper end passes through the top of the T-shaped pipe end 402. A sealing element is also provided at the point where the traction rope 410 passes through the T-shaped pipe end 402 to seal the top of the T-shaped pipe end 402, preventing leakage when the hydraulic pressure is too high. A winding assembly is then connected to the outer end of the traction rope 410.

[0055] The specific collection components include a winding motor 411 located at the top of the three-phase separator 200. The motor shaft of the winding motor 411 is connected to a winding wheel 412 via a one-way transmission component. The end of the traction rope 410 is connected to the winding wheel 412. A guide wheel 413 is provided at the top of the outer cylindrical shell 401 to guide the traction rope 410 to the winding wheel 412.

[0056] In this embodiment 2, the above-mentioned design of the pipe dredging mechanism 400 has two aspects: First, when the telescopic pipe 406 is extended by hydraulic pressure, the winding wheel 412 can unwind normally, so that the traction rope 410 is unwound under the action of the telescopic pipe 406; second, when it is necessary to retract the telescopic pipe 406, the flushing fluid inside the telescopic pipe 406 is drained first, and then the winding motor 411 is directly started to wind up the traction rope 410. Then, under the action of the traction rope 410, the telescopic pipe 406 can be completely retracted into the outer column shell 401.

[0057] Reference Appendix Figure 2 and attached Figure 7 This embodiment 2 also includes a pipe blockage detection component 600 installed in the upper connecting pipe 305, and then the pipe blockage detection component 600 is electrically connected to the control cabinet 700. Specifically, the pipe blockage detection component 600 includes a force sensor 601 installed on the top of the upper connecting pipe 305. The working surface of the force sensor 601 is connected to a slide rod 602 arranged along the central axis of the upper connecting pipe 305. A buoyancy block 603 is sleeved in the slide rod 602, and a spring 604 connects the buoyancy block 603 and the force sensor 601. Finally, the force sensor 601 is connected to the signal input terminal of the control cabinet 700, and the drive device 304 and the liquid pump 404 are connected to the signal output terminal of the control cabinet 700.

[0058] When the aforementioned pipe blockage detection component 600 is blocked in the vertical pipe 303, the overflowing liquid cannot be discharged from the lower end of the vertical pipe 303, which causes the liquid level inside the vertical pipe 303 to rise. At this time, the buoyancy block 603 moves upward under the action of liquid buoyancy to compress the spring 604. Then the spring 604 feeds back the force to the force sensor 601. When the force sensor 601 receives the signal, it indicates that the vertical pipe 303 is blocked by biological mud particles and needs to be cleared in time. Finally, the control cabinet 700 controls the subsequent actions.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic unblocking and leak-prevention device for pipe blockage in an anaerobic ammonia oxidation reactor, comprising a reactor body (100), wherein an inlet pipe (101) is provided on the lower side of the reactor body (100), and a three-phase separator (200) is provided on the upper end, wherein an overflow hole (201) is provided on the three-phase separator (200), and an overflow pipe (202) is connected to the outer end of the overflow hole (201), characterized in that, A pipe switching mechanism (300) is provided below the overflow pipe (202), a pipe clearing mechanism (400) is provided at the upper end of the pipe switching mechanism (300), and a granular sludge return mechanism (500) connected to the reactor body (100) is provided directly below the pipe clearing mechanism (400). The pipeline switching mechanism (300) includes an outer cylinder (301) fixed to the side of the reactor body (100). Turntables (302) are provided at both the upper and lower ends of the inner cavity of the outer cylinder (301). At least two vertical pipes (303) are arranged in a circular array between the two turntables (302). A driving device (304) for driving the turntables (302) to rotate is provided at the upper end of the outer cylinder (301). The upper and lower ends of the outer cylinder (301) are... The upper connecting pipe (305) and the lower connecting pipe (306) are fixed at the ends respectively, and the upper connecting pipe (305) and the lower connecting pipe (306) are simultaneously sealed and connected to the upper and lower openings of one of the vertical pipes (303). The upper connecting pipe (305) is connected to the end of the overflow pipe (202), and the end of the lower connecting pipe (306) is connected to the drain pipe (307). A filter plate (308) is provided at the end of the lower connecting pipe (306) that is connected to the vertical pipe (303). The pipe clearing mechanism (400) includes an outer cylindrical shell (401) fixed to the upper surface of an outer cylinder (301). A collection hopper (309) is connected to the lower surface of the outer cylinder (301) directly below the outer cylindrical shell (401). The collection hopper (309) is vertically aligned with the granular sludge return mechanism (500). A T-shaped pipe end (402) is connected to the upper end of the outer cylindrical shell (401). The T-shaped pipe end (402) has... One end is connected to a water supply pipe (403), and the end of the water supply pipe (403) is connected to a liquid storage tank (405) via a liquid pump (404). The other end of the T-shaped pipe end (402) is connected to a telescopic pipe (406) located in the outer cylindrical shell (401). The lower end of the telescopic pipe (406) is connected to a jet shell (407), and multiple inclined downward jet holes (4071) are evenly opened on the outer side of the jet shell (407).

2. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 1, characterized in that, The lower end of the jet housing (407) is connected to a scraping disc (408), and the diameter of the scraping disc (408) is equal to the inner diameter of the vertical pipe (303). The lower end of the scraping disc (408) is connected to a conical head (409).

3. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 2, characterized in that, The pipe clearing mechanism (400) further includes a traction component for retracting the telescopic pipe (406). The traction component includes a traction rope (410) arranged along the central axis of the telescopic pipe (406). The lower end of the traction rope (410) is connected to the bottom wall of the jet housing (407), and the upper end is arranged through the top of the T-shaped pipe end (402). A sealing element is provided at the position where the traction rope (410) passes through the T-shaped pipe end (402). The outer end of the traction rope (410) is connected to a winding component.

4. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 3, characterized in that, The collection assembly includes a winding motor (411) mounted on top of the three-phase separator (200). The motor shaft of the winding motor (411) is connected to a winding wheel (412) via a one-way transmission component. The end of the traction rope (410) is connected to the winding wheel (412). The top of the outer cylindrical shell (401) is provided with a guide wheel (413) that guides the traction rope (410) to the winding wheel (412).

5. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 4, characterized in that, The granular sludge return mechanism (500) includes a radial cylinder (501) connected to the lower end of the reactor body (100). The upper surface of the outer end of the radial cylinder (501) is provided with a receiving hole (502) located directly below the collection hopper (309). The lower surface of the inner end of the radial cylinder (501) near the reactor body (100) is provided with a filter hole (503). A movable cylinder (504) is slidably disposed in the inner wall of the radial cylinder (501). Both ends of the movable cylinder (504) are sealed. The outer end face of the radial cylinder (501) is provided with a telescopic component (505) for pushing the movable cylinder (504). The upper surface of the movable cylinder (504) is provided with a sludge discharge hole (506) aligned with the receiving hole (502), and the lower surface is provided with a return discharge hole (507) aligned with the filter hole (503).

6. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 5, characterized in that, A liquid collecting hopper (508) is connected to the lower surface of the radial cylinder (501) located at the filter hole (503), and the liquid collecting hopper (508) is provided with a flushing filtrate drain pipe (509).

7. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 1, characterized in that, There are 2-4 vertical pipes (303) arranged between the two turntables (302).

8. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 1 or 7, characterized in that, The upper and lower openings of each vertical pipe (303) are flush with the surface of the turntable (302), and the opening surfaces of the upper connecting pipe (305) and the lower connecting pipe (306) are provided with sealing rings (3061) that are pressed against the surface of the turntable (302).

9. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 1, characterized in that, The upper connecting pipe (305) is equipped with a pipe blockage detection component (600), which is electrically connected to a control cabinet (700).

10. The automatic unblocking and anti-leakage device for anaerobic ammonia oxidizer pipeline blockage according to claim 9, characterized in that, The pipe blockage detection assembly (600) includes a force sensor (601) installed on the top of the upper connecting pipe (305). The working surface of the force sensor (601) is connected to a slide rod (602) arranged along the central axis of the upper connecting pipe (305). A buoyancy block (603) is sleeved in the slide rod (602). A spring (604) is connected between the buoyancy block (603) and the force sensor (601). The force sensor (601) is connected to the signal input terminal of the control cabinet (700). The drive device (304) and the liquid pump (404) are connected to the signal output terminal of the control cabinet (700).

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