An aerobic granular sludge reactor

Abstract

The present invention provides an aerobic granular sludge reactor, which relates to the field of sewage treatment. The present invention comprises a first container, which is provided with a first spiral groove to guide a mud-water mixture to perform spiral motion; a flushing mechanism, which is movably arranged in the first container, and is used to flush the first spiral groove; and a first driving component, which is used to drive the flushing mechanism to move relative to the first container, so that the flushing mechanism flushes various positions of the first spiral groove; wherein the first container is provided with a connecting hole, and the connecting hole is connected to the first spiral groove, so that the mud-water mixture in the first spiral groove can flow to the outside of the first spiral groove through the connecting hole. Compared with the prior art, the present invention has the advantage of being able to remove sludge deposited in the first spiral groove, thereby ensuring that the first spiral groove has enough space to guide the mud-water mixture to perform spiral motion, so as to improve the production efficiency of aerobic granular sludge.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an aerobic granular sludge reactor. Background Art

[0002] At present, aerobic granular sludge forms granular activated sludge through microbial self-agglomeration and has been widely used in sewage treatment. Compared with traditional activated sludge, aerobic granular sludge can improve the activity and biomass concentration of sludge in the reactor, reduce the discharge of excess sludge, and is not prone to sludge swelling, and has excellent sedimentation performance.

[0003] In the related art, a Chinese invention patent with application publication number CN102126786A discloses a cyclone-type aerobic granular sludge reactor. The reactor includes a reactor body and a cyclone aeration device. The reactor body consists of an inner cylinder and an outer cylinder, and is connected to a water inlet system, a drainage system, and a sludge discharge system. Cyclone plates are provided on the inner walls of the inner cylinder and the outer cylinder. Under the action of the cyclone aeration device and the cyclone plates, sewage and sludge can spiral up in the inner cylinder.

[0004] However, after a period of production, the spiral rising force of sewage and sludge will weaken, causing the sludge to fall back to the bottom of the inner tube after spirally rising for a certain distance, which is not conducive to the production of aerobic granular sludge. Summary of the invention

[0005] In order to solve the above problems, the present application provides an aerobic granular sludge reactor.

[0006] The present application provides an aerobic granular sludge reactor, which adopts the following technical solution:

[0007] An aerobic granular sludge reactor, comprising:

[0008] A first container, wherein the first container is provided with a first spiral groove to guide the mud-water mixture to perform a spiral motion;

[0009] a flushing mechanism, movably disposed on the first container, the flushing mechanism being used for flushing the first spiral groove; and

[0010] a first driving assembly, used for driving the flushing mechanism to move relative to the first container, so that the flushing mechanism flushes each position of the first spiral groove;

[0011] Wherein, the first container is provided with a communicating hole, and the communicating hole is communicated with the first spiral groove, so that the mud-water mixture in the first spiral groove can flow to the outside of the first spiral groove through the communicating hole.

[0012] Preferably, the cross-sectional area of ​​the communicating hole gradually increases from an end away from the bottom of the first container to an end close to the bottom of the first container;

[0013] And / or, the opening of one end of the communicating hole located in the first spiral groove is located at the bottom side of the first spiral groove;

[0014] And / or, the first container is provided with a spiral protrusion, the spiral protrusion extends in a spiral shape along the circumference of the first container, and the spiral protrusion and the first container form the first spiral groove; the connecting hole is opened in the spiral protrusion, one end opening of the connecting hole is located on the bottom side of the spiral protrusion away from the first container, and the other end opening is located on the bottom side of the spiral protrusion facing the first container.

[0015] Preferably, the first container is provided with a flushing hole, one end of the flushing hole is connected to the connecting hole, and the other end faces the central axis side of the first container.

[0016] Preferably, the outlet direction of the connection point between the flushing hole and the connecting hole is inclined toward the first spiral groove side.

[0017] Preferably, the flushing mechanism comprises:

[0018] A movable frame, movably disposed on the first container;

[0019] A first nozzle is movably disposed on the movable frame; and

[0020] a second driving assembly, disposed on the movable frame, and used for driving the first nozzle to move relative to the movable frame so that the first nozzle faces different positions of the first spiral groove;

[0021] The first driving assembly is used to drive the movable frame to move relative to the first container, so that the first nozzle covers various positions of the first spiral groove for flushing.

[0022] Preferably, the movable frame comprises a first movable portion and a second movable portion, and the first movable portion is movably disposed in the first container along a depth direction of the first container;

[0023] The second movable part is rotatably disposed on the first movable part with the spiral center line of the first spiral groove as the rotation center, and the first nozzle is movably disposed on the second movable part;

[0024] The first driving assembly is used to drive the first movable part to move along the depth direction of the first container, and to drive the second movable part to rotate relative to the first movable part.

[0025] Preferably, the first nozzle is rotatably disposed on the second movable portion along a first axis to adjust the spraying direction of the first nozzle, and the first axis intersects with the spraying direction of the first nozzle;

[0026] The second driving assembly includes a movable member, and the movable member is movably disposed on the second movable portion to drive the first nozzle to swing back and forth;

[0027] The first movable part is provided with a guiding surface, and the guiding surface is arranged in a ring shape with the rotation center of the second movable part as the center, and the guiding surface is periodically undulating. The movable part is slidably matched with the guiding surface. When the second movable part rotates relative to the first movable part, the guiding surface can guide the movable part to move back and forth, so as to drive the first nozzle to swing back and forth.

[0028] Preferably, it further comprises a second container, wherein the second container is provided with a second spiral groove;

[0029] The first container and / or the second container is movably provided with a movable frame and a third driving component, the movable frame is movably provided with a second nozzle, and the third driving component is used to drive the movable frame to move relative to the second container so that the second nozzle covers various positions of the second spiral groove for flushing.

[0030] Preferably, the movable frame comprises a first movable part and a second movable part, and the first movable part is movably disposed on the second container with the spiral center line of the second spiral groove as the rotation center;

[0031] The second moving part is movably disposed on the first moving part along the depth direction of the second container, and the second nozzle is movably disposed on the second moving part;

[0032] The third driving assembly is used to drive the second moving part to move along the depth direction of the second container, and to drive the first moving part to move with the spiral center line of the second spiral groove as the rotation center.

[0033] Preferably, the second nozzle is rotatably disposed on the second moving part along a second axis to adjust the spraying direction of the second nozzle, and the second axis intersects with the spraying direction of the second nozzle;

[0034] An elastic member is provided between the second nozzle and the second moving part, and a counterweight is connected to the elastic member;

[0035] When the second nozzle is working, the second nozzle can be swung under the action of the recoil force of the second nozzle; when the second nozzle is swung, the counterweight can be driven to swung, so that the swing amplitude of the second nozzle is increased.

[0036] The present invention has the following advantages and beneficial effects:

[0037] The production of aerobic granular sludge is stopped periodically, and after the mud-water mixture in the first container is emptied, the first spiral groove is flushed through the flushing mechanism to remove the sludge deposited in the first spiral groove, thereby ensuring that the first spiral groove has enough space to guide the mud-water mixture to move in a spiral, and avoiding the problem that the mud-water mixture cannot be effectively guided when there is a lot of sludge deposited in the first spiral groove, resulting in a significant loss of the spiral rising force of the mud-water mixture. This design solves the problem that after the equipment has been used for a period of time, the sludge rises a certain distance and then falls back to the bottom of the first container. At the same time, when cleaning the first spiral groove, the accumulated water in the first spiral groove can be discharged in time through the connecting hole, thereby improving the flushing efficiency.

[0038] In the process of producing aerobic granular sludge, oxygen generated by aeration can enter the bottom of the first spiral groove through the connecting hole, so that the sludge at the bottom of the first spiral groove can obtain sufficient oxygen, thereby improving the production efficiency of aerobic granular sludge. In addition, part of the muddy water can also enter the first spiral groove through the connecting hole to flush it, reduce the amount of sludge deposited at the bottom of the first spiral groove, thereby reducing the frequency of cleaning the first spiral groove through the flushing mechanism, and further reducing the number of times the production of aerobic granular sludge is stopped, so as to improve the production efficiency of aerobic granular sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0041] Figure 2 It is a partial enlarged view of an embodiment of the present application.

[0042] Figure 3 It is a first cross-sectional view of an embodiment of the present application.

[0043] Figure 4 yes Figure 3 Enlarged schematic diagram of part A in the middle.

[0044] Figure 5 Schematic diagram of the first structure of the connecting hole.

[0045] Figure 6 2 is a second structural schematic diagram of the connecting hole.

[0046] Figure 7 yes Figure 3 Enlarged schematic diagram of part B in the middle.

[0047] Figure 8 It is a second cross-sectional view of the embodiment of the present application.

[0048] Fig. 9 It is a structural diagram of the flushing mechanism.

[0049] Fig.10 It is a structural diagram of a mobile rack.

[0050] The markings in the figure are:

[0051] 100, first container; 110, first spiral groove; 120, communicating hole; 130, spiral protrusion; 140, flushing hole; 200, flushing mechanism; 210, movable frame; 211, first movable part; 211a, guide surface; 211b, boss; 212, second movable part; 212a, water collecting tank; 212b, water pump; 220, first nozzle; 230, second driving assembly; 231, movable part; 231a, through hole; 23 1b, rotating wheel; 300, first driving assembly; 310, first cylinder; 320, first motor; 400, second container; 410, movable frame; 411, second nozzle; 411a, elastic member; 411b, counterweight; 411c, hinge shaft; 412, first moving part; 413, second moving part; 420, third driving assembly; 421, second cylinder; 422, second motor; 430, second spiral groove; 440, track. DETAILED DESCRIPTION

[0052] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0053] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0054] In the process of producing aerobic granular sludge, the inventors found that as the mud-water mixture moves spirally upward along the first spiral groove, the sludge will be deposited in the first spiral groove. After a period of production, the sludge deposited in the first spiral groove will gradually increase. When the sludge in the first spiral groove increases to a certain amount, the first spiral groove will not be able to effectively guide the mud-water mixture to move in a spiral, resulting in a significant loss of lifting force for the spirally rising sludge during the ascent, causing the sludge to fall back to the bottom side of the first container after rising a certain distance due to the loss of lifting force, thereby reducing the production efficiency of aerobic granular sludge.

[0055] In order to solve this problem, the present application provides an aerobic granular sludge reactor, which has a connecting hole connected to the first spiral groove. When the mud-water mixture moves upward in a spiral under the guidance of the first spiral groove, part of the mud-water mixture will enter the first spiral groove through the connecting hole, so that the sludge deposited at the bottom of the first spiral groove can be flushed, and the speed of sludge deposition at the bottom of the first spiral groove can be reduced to a certain extent. At the same time, the mud-water mixture in the first container can be discharged regularly, and the first spiral groove can be cleaned, so that the sludge deposited in the first spiral groove can be cleaned, so that the first spiral groove can provide effective guidance for the mud-water mixture.

[0056] When cleaning the first spiral groove, the accumulated water in the first spiral groove can be discharged in time through the connecting hole, thereby avoiding the situation that when there is water accumulated in the first spiral groove, the liquid sprayed by the flushing mechanism cannot directly contact the sludge at the bottom of the first spiral groove. The liquid sprayed by the flushing mechanism can directly impact the sludge at the bottom of the first spiral groove, which can speed up the sludge cleaning efficiency.

[0057] The following is combined with Figures 1 to 10 , an aerobic granular sludge reactor provided in an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0058] Reference Figure 1 , Figure 2 The present application embodiment discloses an aerobic granular sludge reactor, including a first container 100, a second container 400, a cyclone aeration device, a water inlet system, a drainage system and a sludge discharge system. The first container 100 is located inside the second container 400, and there is a certain distance between the first container 100 and the second container 400, and the bottom of the first container 100 is connected to the second container 400 (combined with Figure 8As shown in the figure, the mud-water mixture can flow from the top of the first container 100 into the space between the first container 100 and the second container 400, then enter the bottom of the second container 400 from between the first container 100 and the second container 400, and then enter the first container 100 from the bottom of the second container 400. The cyclone aeration device is located in the first container 100, which can aerate the mud-water mixture in the first container 100 and make the mud-water mixture at the bottom of the first container 100 do cyclone motion, so that the mud-water mixture can spirally rise along the first spiral groove 110. The water inlet system, drainage system and mud discharge system are all connected to the reaction container. It can be understood that the cyclone aeration device, water inlet system, drainage system and mud discharge system on the aerobic granular sludge reactor are all prior art and will not be described in detail here.

[0059] Reference Figure 2 , Figure 3 The aerobic granular sludge reactor further includes a flushing mechanism 200 and a first driving assembly 300. The first container 100 is a container with an upper opening and an inner cavity. A first spiral groove 110 is provided on the inner wall of the first container 100 along the circumference of the first container 100. The first spiral groove 110 spirally extends from the bottom side of the first container 100 to the top opening side of the first container 100. The first spiral groove 110 is used to provide drainage for the mud-water mixture, so that the mud-water mixture moving in a spiral can move in a spiral along the first spiral groove 110. The first spiral groove 110 can provide a certain spiral rising force for the mud-water mixture moving in a spiral along the first spiral groove 110, so that the mud-water mixture at the bottom of the first container 100 can spirally rise to the top opening side of the first container 100. It can be understood that the first spiral groove 110 has a certain depth in the depth direction of the first container 100, so that the first spiral groove 110 can have a good guiding effect and lifting effect on the mud-water mixture. The first container 100 is provided with a connecting hole 120 (combined with Figure 5 As shown in FIG. 1 ), the communicating hole 120 is communicated with the first spiral groove 110, so that the mud-water mixture in the first spiral groove 110 can flow to the outside of the first spiral groove 110 through the communicating hole 120. In some embodiments, the first spiral groove 110 is located on the inner wall of the first container 100. In other embodiments, the first spiral groove 110 can be located on the outer wall of the first container 100 according to the use requirements. In this embodiment, the first spiral groove 110 is located on the inner wall of the first container 100 as an example for description.

[0060] Among them, the flushing mechanism 200 is used to flush the first spiral groove 110, so as to flush away the sludge deposited in the first spiral groove 110. Since the first spiral groove 110 has a certain length, the flushing mechanism 200 is movably arranged in the first container 100. When the flushing mechanism 200 moves relative to the first container 100, all positions of the first spiral groove 110 can be flushed away; the first driving assembly 300 is used to drive the flushing mechanism 200 to move relative to the first container 100, so that the flushing mechanism 200 flushes all positions of the first spiral groove 110.

[0061] Reference Figure 2 , Figure 3 When producing aerobic granular sludge, the cyclone aeration device will aerate the bottom of the first container 100 and drive the mud-water mixture at the bottom of the first container 100 to perform a cyclone motion. Under the joint action of the gas and the first spiral groove 110, the mud-water mixture will move in a spiral along the first spiral groove 110, so that part of the mud-water mixture at the bottom of the first container 100 can move in a spiral to the top side of the first container 100 through the first spiral groove 110, and then enter between the first container 100 and the second container 400 from the top of the first container 100. In this process, part of the gas in the mud-water mixture can enter the first spiral groove 110 through the connecting hole 120, thereby increasing the contact probability between the mud-water mixture in the first spiral groove 110 and the air, and improving the production efficiency of aerobic granular sludge. At the same time, when the mud-water mixture moves in a spiral along the first spiral groove 110, the mud-water mixture will move relative to the first container 100, so that part of the mud-water mixture will enter the first spiral groove 110 through the connecting hole 120, so as to form impacts in different directions on the mud-water mixture in the first spiral groove 110, thereby being able to form a certain impact effect on the sludge deposited at the bottom of the first spiral groove 110, slowing down the deposition speed of the sludge in the first spiral groove 110.

[0062] After a period of use, the muddy-water mixture in the first container 100 and the second container 400 needs to be discharged, and the first spiral groove 110 needs to be flushed through the flushing mechanism 200. During flushing, the flushing mechanism 200 is driven by the first driving assembly 300 to flush different parts of the first spiral groove 110, so that all parts of the first spiral groove 110 are flushed clean. In the process of flushing the first spiral groove 110, the liquid sprayed by the flushing mechanism 200 will impact the first spiral groove 110, so as to flush the first spiral groove 110. The liquid entering the first spiral groove 110 will flow in a spiral along the length direction of the first spiral groove 110 to the bottom of the first container 100. Since there will be sludge in the first spiral groove 110, part of the liquid will be blocked by the sludge and stay in the first spiral groove 110, while the liquid will flow out through the connecting hole 120 (combined with the connecting hole 120). Figure 5As shown in the figure, part of the retained liquid can be discharged to the outside of the first spiral groove 110 in time, thereby reducing the liquid retained in the first spiral groove 110. When the flushing mechanism 200 sprays flushing liquid into the first spiral groove 110, the flushing liquid sprayed by the flushing mechanism 200 can directly contact the sludge in the first spiral groove 110, thereby improving the cleaning effect of the first spiral groove 110.

[0063] According to an alternative embodiment, referring to Figure 3 , Figure 6 , the cross-sectional area of ​​the communicating hole 120 gradually increases from the end away from the bottom of the first container 100 to the end close to the bottom of the first container 100, that is, the inner hole size of the communicating hole 120 gradually increases from the end close to the first spiral groove 110 to the end away from the first spiral groove 110. In some embodiments, the communicating hole 120 is a circular hole, and the central axis of the communicating hole 120 is a straight line, so as to process the communicating hole 120. By setting the communicating hole 120 as a hole similar to the flared shape, it is convenient for gas to enter the communicating hole 120 through the larger end of the communicating hole 120, increase the amount of air entering the first spiral groove 110, and at the same time, the sludge entering the communicating hole 120 from the side of the first spiral groove 110 can be discharged in time to avoid the situation where the sludge blocks the communicating hole 120.

[0064] According to an alternative embodiment, referring to Figure 3 , Figure 4 , the opening of one end of the communicating hole 120 located in the first spiral groove 110 is located at the bottom side of the first spiral groove 110. That is, the communicating hole 120 is connected to the lowest point of the first spiral groove 110 so as to discharge all the liquid in the first spiral groove 110. It can be understood that, since the first spiral groove 110 is a groove extending spirally from the bottom side of the first container 100 to the top side of the first container 100, the bottom side of the first spiral groove 110 here refers to the bottom side of the first spiral groove 110 at the cross section of the position where it is connected to the communicating hole 120, and the lowest point of the first spiral groove 110 refers to the lowest point of the first spiral groove 110 at the cross section of the position where it is connected to the communicating hole 120 along the depth direction of the first spiral groove 110. It can be understood that the cross section here is a cross section perpendicular to the extension direction of the first spiral groove 110.

[0065] Reference Figure 3 , Figure 4According to an optional embodiment, the first container 100 is provided with a spiral protrusion 130, which extends in a spiral shape along the circumference of the first container 100, and the spiral protrusion 130 and the first container 100 form a first spiral groove 110; the connecting hole 120 is opened on the spiral protrusion 130, and one end of the connecting hole 120 is opened on the bottom side of the spiral protrusion 130 away from the first container 100, and the other end is opened on the bottom side of the spiral protrusion 130 facing the first container 100. The first container 100 is provided with a spiral protrusion 130, which means that the spiral protrusion 130 is provided on the surface of the first container 100. Compared with directly opening the first spiral groove 110 on the inner wall of the first container 100, by providing the spiral protrusion 130, the connecting hole 120 can be easily processed on the spiral protrusion 130, and the spiral protrusion 130 can be directly welded on the existing equipment, so as to quickly transform the existing equipment.

[0066] According to an alternative embodiment, referring to Figure 3 , Figure 4 , the first container 100 is provided with a flushing hole 140, one end of the flushing hole 140 is connected to the connecting hole 120, and the other end is toward the central axis side of the first container 100. When the first spiral groove 110 is flushed by the flushing mechanism 200, the liquid sprayed by the flushing mechanism 200 is not easy to directly enter the connecting hole 120, which may cause part of the sludge to stick in the connecting hole 120, which is not conducive to cleaning the inside of the connecting hole 120. By providing the flushing hole 140, part of the flushing liquid can be directly entered into the flushing hole 140 when the flushing mechanism 200 moves, so as to flush the connecting hole 120. In some embodiments, the cross-sectional area of ​​the flushing hole 140 gradually increases from the end of the connecting hole 120 to the end away from the connecting hole 120, that is, the flushing hole 140 is a hole similar to a flared hole. Since the flushing hole 140 is a flared hole, when flushing by the first nozzle 220, the flushing liquid can be guided to enter the flushing hole 140 more easily, which is beneficial to improve the flushing effect.

[0067] Reference Figure 3 , Figure 4According to an optional embodiment, the outlet direction of the flushing hole 140 and the connecting hole 120 is inclined toward the first spiral groove 110. The liquid entering the flushing hole 140 can be sprayed out obliquely toward the connecting hole 120 located on the first spiral groove 110, and the sludge blocked at the connecting hole 120 and the first spiral groove 110 can be washed clean. At the same time, when the gas generated by aeration enters the connecting hole 120, since the flushing hole 140 is inclined toward the first spiral groove 110, it is not easy for the air in the connecting hole 120 to enter the flushing hole 140, and the air can directly enter the first spiral groove 110 through the connecting hole 120. It can be understood that the connecting hole 120 and the flushing hole 140 are arranged one by one, and a plurality of the connecting holes 120 are arranged along the extension direction of the first spiral groove 110.

[0068] According to an alternative embodiment, referring to Figure 2 , Figure 7 The flushing mechanism 200 includes a movable frame 210, a first nozzle 220 and a second driving assembly 230, wherein the movable frame 210 is movably arranged on the first container 100, and the first nozzle 220 is movably arranged on the movable frame 210; the second driving assembly 230 is arranged on the movable frame 210 to drive the first nozzle 220 to move relative to the movable frame 210, so that the first nozzle 220 is directed to different positions of the first spiral groove 110; the first driving assembly 300 is used to drive the movable frame 210 to move relative to the first container 100, so that the first nozzle 220 covers various positions of the first spiral groove 110 for flushing. When in use, the position of the movable frame 210 in the first container 100 is changed by the first driving component 300, so that the first nozzle 220 can flush the first spiral groove 110 at different positions, and the first nozzle 220 can be driven to move relative to the movable frame 210 by the second driving component 230, so that the first nozzle 220 can flush within an area at the same position. Through the combined use of the first driving component 300 and the second driving component 230, the first spiral groove 110 can be flushed in all directions, so that the liquid sprayed by the first nozzle 220 can cover all positions of the first spiral groove 110.

[0069] According to an optional embodiment, the movable frame 210 includes a first movable portion 211 and a second movable portion 212. The first movable portion 211 extends along the depth direction (i.e., Figure 3The second movable portion 212 is rotatably disposed on the first movable portion 211 with the spiral center line of the first spiral groove 110 as the rotation center, and the first nozzle 220 is movably disposed on the second movable portion 212. The second driving assembly 230 is used to drive the first nozzle 220 to move relative to the second movable portion 212; the first driving assembly 300 is used to drive the first movable portion 211 to move along the depth direction of the first container 100, and drive the second movable portion 212 to rotate relative to the first movable portion 211.

[0070] During cleaning, the first movable part 211 is driven by the first driving component 300 to move along the depth direction of the first container 100. At this time, the first movable part 211 will drive the second movable part 212 to move along the depth direction of the first container 100. At the same time, the first driving component 300 can also simultaneously drive the second movable part 212 to rotate relative to the first movable part 211, so that the first nozzle 220 located on the second movable part 212 can scan the first spiral groove 110 along the circumference of the first container 100. While scanning along the circumference of the first container 100, the first nozzle 220 can also be gradually moved in the depth direction of the first container 100, so that the flushing liquid sprayed by the first nozzle 220 completely covers the first spiral groove 110.

[0071] In some embodiments, reference Figure 3 , Figure 7 The first driving assembly 300 includes a first cylinder 310 and a first motor 320. The first cylinder 310 is connected to the first container 100 or the second container 400. The piston rod of the first cylinder 310 is connected to the first movable part 211. When the piston rod of the first cylinder 310 is extended or retracted, the first movable part 211 can be driven to move in the depth direction of the first container 100. It can be understood that the first cylinder 310 is a multi-stage cylinder and can have a large stroke. In other embodiments, the first cylinder 310 can also be other driving structures, such as a screw structure. The first motor 320 is fixed to the first movable part 211, and the first motor 320 cooperates with the second movable part 212 to drive the second movable part 212 to rotate relative to the first movable part 211.

[0072] It is understandable that, referring to Figure 2 , Figure 7Since the first nozzle 220 will move relative to the first movable portion 211 along with the second movable portion 212 , if a pipeline is directly connected to the first nozzle 220 , the pipeline may become entangled or knotted, which is not conducive to flushing the first spiral groove 110 . Therefore, in some embodiments, a water collecting tank 212a is provided in the second movable part 212, and a water pump 212b is provided in the water collecting tank 212a. The water pump 212b is connected to the nozzle through a hose. An opening is provided at the upper end of the water collecting tank 212a, and the opening of the water collecting tank 212a is arranged in a ring shape with the rotation center of the second movable part 212 as the center. The external water supply pipe is fixed to the first movable part 211, and the water outlet of the external water supply pipe is located in the opening of the water collecting tank 212a. When the second movable part 212 rotates relative to the first movable part 211, the external water supply pipe will move relative to the opening of the water collecting tank 212a. Since the opening of the water collecting tank 212a is an annular opening with the rotation center of the second movable part 212 as the center, the water outlet of the external water supply pipe can always be located in the opening of the water collecting tank 212a, thereby ensuring that the external flushing liquid can be provided to the first nozzle 220. Specifically, the opening of the water collection tank 212a is arranged around the rotation axis of the second movable part 212. When the second movable part 212 rotates relative to the first movable part 211, the relative position relationship between the opening of the water collection tank 212a and the first movable part 211 can be ensured to remain unchanged, so that the external water supply pipe fixed to the first movable part 211 can always maintain a stable connection state with the opening of the water collection tank 212a. It can be understood that the external water supply pipe is a hose, and a certain length of the external water supply pipe is reserved. When the first movable part 211 moves relative to the first container 100, it can pull the external water supply pipe to move, thereby ensuring that when the first spiral groove 110 is cleaned, the external water supply pipe can always supply water to the first nozzle 220. In some embodiments, the first container 100 and / or the second container 400 are provided with a guide wheel, and the external water supply pipe cooperates with the guide wheel, and the external water supply pipe is guided by the guide wheel to avoid the external water supply pipe and the first container 100 and / or the second container 400 from wearing each other.

[0073] According to an alternative embodiment, referring to Figure 8 , Fig. 9The first nozzle 220 is rotatably arranged on the second movable part 212 along the first axis to adjust the spraying direction of the first nozzle 220, and the first axis intersects with the spraying direction of the first nozzle 220; the second driving assembly 230 includes a movable member 231, and the movable member 231 is movably arranged on the second movable part 212 to drive the first nozzle 220 to swing back and forth; the first movable part 211 is provided with a guide surface 211a, and the guide surface 211a is annularly arranged with the rotation center of the second movable part 212 as the center, and the guide surface 211a is periodically undulating, and the movable member 231 and the guide surface 211a are slidably matched, and when the second movable part 212 rotates relative to the first movable part 211, the guide surface 211a can guide the movable member 231 to move back and forth to drive the first nozzle 220 to swing back and forth. Specifically, the first axis can be an axis perpendicular to the spraying direction of the first nozzle 220.

[0074] In some embodiments, reference Figure 7 , Fig. 9 The movable part 231 is provided with a through hole 231a, at least a part of the first nozzle 220 is located in the through hole 231a, and a movable gap is provided between the through hole 231a and the first nozzle 220. When the movable part 231 moves, it can push the first nozzle 220 to rotate through the inner wall of the through hole 231a.

[0075] Specifically, the axis of rotation of the first nozzle head 220 relative to the second movable part 212 is in a horizontal plane. In this way, when the first nozzle head 220 rotates relative to the second movable part 212, the water spray port of the first nozzle head 220 can be swept in the depth direction of the first container 100, and the first spiral groove 110 can be swept and flushed in the depth direction of the first spiral groove 110, thereby improving the cleaning effect of the first spiral groove 110.

[0076] Reference Figure 7 , Fig. 9A boss 211b is provided on the first movable part 211, and the boss 211b is arranged around the rotation axis of the second movable part 212 relative to the first movable part 211. The guide surface 211a is arranged on the side of the boss 211b away from the bottom of the first container 100, and the guide surface 211a undulates along the depth direction of the first container 100, and the guide surface 211a is a smooth transition surface. A rotating wheel 231b is provided on the movable part 231, and the rotating wheel 231b is attached to the guide surface 211a. As the second movable part 212 rotates relative to the first movable part 211, the rotating wheel 231b will roll relative to the guiding surface 211a, and the movable part 231 will be pushed to reciprocate along the depth direction of the first container 100 through the guiding surface 211a, thereby driving the first nozzle 220 to rotate. Since a hose is connected to the first nozzle 220, the movable frame 210 can be pushed to move under the elasticity of the hose, so that the rotating wheel 231b is always attached to the guiding surface 211a. In some embodiments, a spring can also be provided between the movable part 231 and the second movable part 212, and the rotating wheel 231b is always attached to the guiding surface 211a through the spring.

[0077] According to an alternative embodiment, referring to Figure 3 , Fig.10 The second container 400 is provided with a second spiral groove 430, and the first container 100 and / or the second container 400 are movably provided with a moving frame 410 and a third driving assembly 420. The moving frame 410 is movably provided with a second nozzle 411, and the third driving assembly 420 is used to drive the moving frame 410 to move relative to the second container 400, so that the second nozzle 411 covers various positions of the second spiral groove 430 for flushing. The second nozzle 411 flushes the second spiral groove 430, and the third driving assembly 420 drives the moving frame 410 to move, so that the second nozzle 411 flushes various positions of the second spiral groove 430.

[0078] According to an alternative embodiment, referring to Figure 2 , Fig.10 The movable frame 410 includes a first movable part 412 and a second movable part 413. The first movable part 412 is movably arranged on the second container 400 with the spiral center line of the second spiral groove 430 as the rotation center; the second movable part 413 is movably arranged on the first movable part 412 along the depth direction of the second container 400, and the second nozzle 411 is movably arranged on the second movable part 413; the third driving component 420 is used to drive the second movable part 413 to move along the depth direction of the second container 400, and drive the first movable part 412 to move with the spiral center line of the second spiral groove 430 as the rotation center.

[0079] In some embodiments, the third driving assembly 420 includes a second cylinder 421 and a second motor 422. A track 440 is provided along the circumference of the second container 400. The first moving part 412 is slidably provided on the track 440. The track 440 is provided with teeth. The second motor 422 is fixed to the first moving part 412. The output shaft of the second motor 422 is connected with a gear. The gear cooperates with the teeth. When the second motor 422 rotates, it can drive the first moving part 412 to slide on the track 440, so that the first moving part 412 moves along the circumference of the second container 400. The second cylinder 421 is fixed to the first moving part 412. The piston rod of the second cylinder 421 is connected to the second moving part 413. The second moving part 413 can be driven to move along the depth direction of the second container 400 through the second cylinder 421. It can be understood that the second cylinder 421 is a multi-stage cylinder.

[0080] According to an alternative embodiment, referring to Fig.10 The second nozzle 411 is rotatably arranged on the second movable part 413 along the second axis to adjust the spraying direction of the second nozzle 411, and the second axis intersects with the spraying direction of the second nozzle 411; an elastic member 411a is arranged between the second nozzle 411 and the second movable part 413, and a counterweight 411b is connected to the elastic member 411a; specifically, a hinge shaft 411c is arranged on the second nozzle 411, and the second nozzle 411 is rotatably connected to the second movable part 413 via the hinge shaft 411c. When the second nozzle 411 is working, since the flushing liquid is sprayed from the second nozzle 411, the second nozzle 411 will be affected by a recoil force (specifically, when the liquid is sprayed from the second nozzle 411 at a certain speed, an outward thrust will be generated. According to Newton's third law, for every action force, there will be an equal and opposite reaction force. Therefore, when the liquid is sprayed, an outward force is applied, and the second nozzle 411 will be affected by an equal but opposite force, which is the recoil force.), under the action of the recoil force of the second nozzle 411 The second nozzle 411 is made to swing (because the water pressure in the second nozzle 411 is not balanced, the recoil force will change at any time, so that the second nozzle 411 can swing); when the second nozzle 411 swings, the elastic member 411a can be driven to move / shake, so that the counterweight 411b connected to the elastic member 411a can swing. Since the counterweight 411b is heavy, the inertia of the counterweight 411b is greater, so the elastic member 411a swings for a longer time under the action of the counterweight 411b, and the second nozzle 411 can swing continuously in this way. Specifically, the second axis is an axis perpendicular to the spraying direction of the second nozzle 411.

[0081] In some embodiments, such as Fig.10As shown, the central axis of the second nozzle 411 is X, the central axis X intersects and is coplanar with the central axis of the hinge shaft 411c, the plane where the central axis X and the central axis of the hinge shaft 411c are located is the central plane, and the liquid sprayed by the second nozzle 411 is directed to the upper area or the lower area of ​​the central plane. In some embodiments, the amount of liquid sprayed by the second nozzle 411 toward the upper area of ​​the central plane is greater than the amount of liquid sprayed from the second nozzle 411, or the amount of liquid sprayed by the second nozzle 411 toward the upper area of ​​the central plane is less than the amount of liquid sprayed from the second nozzle 411. It can be understood that the upper area and the lower area of ​​the central plane indicate that these areas are not in the central plane and are at a certain distance from the central plane. Fig.10 The figure shows the situation where the liquid sprayed by the second nozzle 411 is directed toward the lower area of ​​the center plane. In some embodiments, there are multiple second nozzles 411, and the directions of the liquids sprayed by the multiple second nozzles 411 can be the same; they can also be partially the same and partially different; or they can be completely different. Since the amount of liquid sprayed by the second nozzle 411 in the area above and below the center plane is different, a recoil force is formed at the position of the nozzle of the second nozzle 411, which is at an angle to the central axis X. Under the action of the recoil force, the second nozzle 411 will rotate, and under the joint action of the elastic member 411a and the counterweight 411b, the second nozzle 411 will swing to improve the flushing efficiency.

[0082] In some embodiments, the elastic member 411a is a spring, one end of which is connected to the second nozzle 411, and the other end is connected to the second moving part 413. Specifically, one end of the spring is connected to the side of the second nozzle 411 away from the injection port, and the second nozzle 411 can be fixed at a certain angle by the spring. When the second nozzle 411 is working, the second nozzle 411 will be subjected to the recoil force, which will cause the second nozzle 411 to rotate relative to the second moving part 413, so that the spring is pulled, and the counterweight 411b fixed on the spring will swing due to the movement of the spring, and the counterweight 411b can drive the spring to shake when swinging, and then the spring pulls the second nozzle 411 to rotate, so that the second nozzle 411 can produce a reciprocating swing effect when working, so that the second nozzle 411 can be swept within a certain range, increasing the cleaning range of the second nozzle 411.

[0083] In some embodiments, reference Figure 2 , Figure 3, the mobile frame 410, the third drive assembly 420 and the second nozzle 411 are provided in two groups, and the second container 400 can be divided into two areas along the circumference, that is, 0-180 degrees along the circumference of the second container 400 is the first area, and 180-360 degrees is the second area. One group of mobile frames 410, the third drive assembly 420 and the second nozzle 411 cleans the second spiral groove 430 in the first area, and the other group of mobile frames 410, the third drive assembly 420 and the second nozzle 411 cleans the second spiral groove 430 in the second area. In this way, it is possible to avoid the situation where the water supply pipe of the second nozzle 411 is entangled with the second container 400 when the mobile frame 410 moves axially along the second container 400. It can be understood that the water supply pipe is a hose. In other embodiments, the mobile frame 410, the third drive assembly 420 and the second nozzle 411 can also be provided in more than two groups.

[0084] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An aerobic granular sludge reactor, characterized in that: include: A first container (100), wherein the inner wall of the first container (100) is provided with a first spiral groove (110) along the circumference of the first container (100) so as to guide the mud-water mixture to perform a spiral motion; a flushing mechanism (200), movably disposed on the first container (100), the flushing mechanism (200) being used for flushing the first spiral groove (110); as well as, a first driving assembly (300) for driving the flushing mechanism (200) to move relative to the first container (100), so that the flushing mechanism (200) flushes various positions of the first spiral groove (110); The first spiral groove (110) spirally extends from the bottom side of the first container (100) to the top opening side of the first container (100), and the first spiral groove (110) has a certain depth in the depth direction of the first container (100); the first container (100) is provided with a spiral protrusion (130), and the spiral protrusion (130) extends in a spiral shape along the circumference of the first container (100), and the spiral protrusion (130) and the first container (100) enclose the first spiral groove (110); The first container (100) is provided with a connecting hole (120), and the connecting hole (120) is connected to the first spiral groove (110), so that the mud-water mixture in the first spiral groove (110) can flow to the outside of the first spiral groove (110) through the connecting hole (120); the connecting hole (120) is opened on the spiral protrusion (130), and one end opening of the connecting hole (120) is located on the bottom side of the spiral protrusion (130) away from the first container (100), and the other end opening is located on the bottom side of the spiral protrusion (130) facing the first container (100).

2. An aerobic granular sludge reactor according to claim 1, characterized in that: The cross-sectional area of ​​the communicating hole (120) gradually increases from an end away from the bottom of the first container (100) to an end close to the bottom of the first container (100); And / or, the opening of one end of the communicating hole (120) located in the first spiral groove (110) is located at the bottom side of the first spiral groove (110).

3. An aerobic granular sludge reactor according to claim 1 or 2, characterized in that: The first container (100) is provided with a flushing hole (140), one end of the flushing hole (140) is connected to the connecting hole (120), and the other end faces the central axis side of the first container (100).

4. An aerobic granular sludge reactor according to claim 3, characterized in that: The outlet direction of the flushing hole (140) at the point where it communicates with the communicating hole (120) is inclined toward the first spiral groove (110).

5. The aerobic granular sludge reactor according to claim 1, characterized in that: The flushing mechanism (200) comprises: A movable frame (210) movably disposed on the first container (100); a first nozzle (220) movably disposed on the movable frame (210); and a second driving assembly (230) disposed on the movable frame (210), the second driving assembly (230) being used to drive the first nozzle (220) to move relative to the movable frame (210) so that the first nozzle (220) is directed toward different positions of the first spiral groove (110); The first driving assembly (300) is used to drive the movable frame (210) to move relative to the first container (100), so that the first spray head (220) covers various positions of the first spiral groove (110) for flushing.

6. The aerobic granular sludge reactor according to claim 5, characterized in that: The movable frame (210) comprises a first movable portion (211) and a second movable portion (212); the first movable portion (211) is movably disposed on the first container (100) along a depth direction of the first container (100); The second movable part (212) is rotatably disposed on the first movable part (211) with the spiral center line of the first spiral groove (110) as the rotation center, and the first nozzle (220) is movably disposed on the second movable part (212); The first driving assembly (300) is used to drive the first movable part (211) to move along the depth direction of the first container (100), and to drive the second movable part (212) to rotate relative to the first movable part (211).

7. An aerobic granular sludge reactor according to claim 6, characterized in that: The first nozzle (220) is rotatably disposed on the second movable portion (212) along a first axis to adjust a spraying direction of the first nozzle (220), and the first axis intersects with the spraying direction of the first nozzle (220); The second driving assembly (230) comprises a movable member (231), and the movable member (231) is movably arranged on the second movable portion (212) to drive the first spray head (220) to swing back and forth; The first movable part (211) is provided with a guiding surface (211a), and the guiding surface (211a) is arranged in a ring shape with the rotation center of the second movable part (212) as the center, and the guiding surface (211a) is periodically undulating. The movable part (231) is slidably matched with the guiding surface (211a), and when the second movable part (212) rotates relative to the first movable part (211), the guiding surface (211a) can guide the movable part (231) to move back and forth, so as to drive the first nozzle (220) to swing back and forth.

8. The aerobic granular sludge reactor according to claim 1, characterized in that: The invention also comprises a second container (400), the inner wall of which is provided with a second spiral groove (430); the first container (100) is located inside the second container (400), a certain distance is provided between the first container (100) and the second container (400), and the bottom of the first container (100) is connected with the second container (400), so that the mud-water mixture can flow from the top of the first container (100) into the space between the first container (100) and the second container (400), then enter the bottom of the second container (400) from the space between the first container (100) and the second container (400), and then enter the first container (100) from the bottom of the second container (400); The first container (100) and / or the second container (400) are movably provided with a movable frame (410) and a third driving component (420), and the movable frame (410) is movably provided with a second nozzle (411), and the third driving component (420) is used to drive the movable frame (410) to move relative to the second container (400) so that the second nozzle (411) covers various positions of the second spiral groove (430) for flushing.

9. The aerobic granular sludge reactor according to claim 8, characterized in that: The movable frame (410) comprises a first movable part (412) and a second movable part (413), wherein the first movable part (412) is movably disposed on the second container (400) with the spiral center line of the second spiral groove (430) as the rotation center; The second moving part (413) is movably disposed on the first moving part (412) along the depth direction of the second container (400), and the second nozzle (411) is movably disposed on the second moving part (413); The third driving component (420) is used to drive the second moving part (413) to move along the depth direction of the second container (400), and to drive the first moving part (412) to move with the spiral center line of the second spiral groove (430) as the rotation center.

10. The aerobic granular sludge reactor according to claim 9, characterized in that: The second nozzle (411) is rotatably disposed on the second moving part (413) along a second axis to adjust the spraying direction of the second nozzle (411), and the second axis intersects with the spraying direction of the second nozzle (411); An elastic member (411a) is provided between the second nozzle (411) and the second moving part (413), and a counterweight (411b) is connected to the elastic member (411a); When the second nozzle (411) is in operation, the second nozzle (411) can be swung under the action of the recoil force of the second nozzle (411); when the second nozzle (411) is swung, the counterweight (411b) can be driven to swung, so that the swing amplitude of the second nozzle (411) is increased.

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