An aerobic granular sludge integrated sewage treatment equipment

Abstract

The present invention relates to the technical field of sewage treatment, and specifically to an aerobic granular sludge integrated sewage treatment equipment, the present invention comprises an aerobic tank, the aerobic tank comprises an outer tank body and an inner tank body; a turntable is rotatably mounted on the inner bottom surface of the inner tank body, and multiple groups of aeration mechanisms are fixedly mounted on the turntable; the aeration mechanism comprises an aeration component, a dredging component is arranged on the aeration component, and a pressing component used in conjunction with the dredging component is arranged on the inner wall of the inner tank body; a driving mechanism is fixedly mounted on the top surface of the inner tank body, and the driving mechanism is transmission-connected to the periphery of a hollow shaft; a transmission component is arranged on the periphery of the hollow shaft, and multiple groups of floating foam cleaning components are transmission-connected to the transmission component; the present invention can transfer the cleaning step of floating foam to the sedimentation zone during sewage treatment, and it is relatively easy to clean. The dredging component will be sequentially and periodically subjected to the downward pressure of the pressing component, thereby periodically and automatically dredging the aeration component.

Description

Technical Field

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

[0002] Wastewater treatment refers to the process of treating wastewater (including domestic sewage, industrial wastewater, etc.) with a variety of methods such as physical, chemical and biological methods to remove pollutants and convert them into water resources that can be safely discharged or reused. Among them, aerobic biological pools are a treatment method that uses aerobic microorganisms to degrade organic pollutants in sewage; they can effectively remove organic matter and nutrients such as nitrogen and phosphorus in sewage, and can treat various types of sewage, including domestic sewage and industrial sewage. In addition, they use microorganisms in nature for treatment, reducing the use of chemical agents and being more environmentally friendly.

[0003] Existing aerobic biological pools are usually equipped with drainage systems to facilitate the discharge of sediment and sludge. The pool is divided into a mixing zone and a sedimentation zone. An aeration device is set in the mixing zone to provide oxygen to the sewage and support the growth of aerobic microorganisms. Common ones include microporous aeration pipes and nozzles. The sewage passing through the mixing zone flows to the sedimentation zone, and the sewage in the sedimentation zone flows to the subsequent treatment steps or discharge ports after sedimentation. In order to improve the treatment effect, a sludge return pipeline is designed to return part of the precipitated activated sludge to the pool to mix with the new sewage to maintain a good activated sludge concentration.

[0004] However, the existing aerobic biological pools still have the following shortcomings during use:

[0005] 1. The water surface of the mixing zone will form foam due to aeration. Usually, additional cleaning devices are set up on the surface of the mixing zone to clean the foam. However, the water flow in the mixing zone is more intense, and the foam is constantly stirred, which may form new foam or destroy existing aggregates at any time, making the cleaning work more complicated. In addition, the foam in the mixing zone may contain more microorganisms and organic matter, which will increase the adhesion of the foam and make it more difficult to clean thoroughly.

[0006] 2. The aeration pipes in the mixing zone are usually fixedly installed at the bottom of the pool. The installation intervals between the aeration pipes make it impossible for the bubbles to be evenly distributed in the mixing zone. It is usually necessary to increase the arrangement density of the aeration pipes to improve the aeration effect, which increases the construction cost of the equipment. In addition, although the aeration holes of the aeration pipes will not be completely blocked in the long term, dirt and impurities may adhere to the hole walls, causing certain blockage problems, resulting in uneven airflow from different aeration holes, which is not conducive to mixing uniformity in the mixing zone and reduces the sewage treatment effect.

[0007] Aerobic granular sludge integrated sewage treatment equipment is a biological reaction device for wastewater treatment. It mainly degrades organic matter and pollutants in water through the metabolism of aerobic microorganisms. It is widely used in the treatment of urban sewage and industrial wastewater, and can effectively remove organic matter, nitrogen, phosphorus and other pollutants in water. The main body of the equipment is a tank structure. The bottom of the tank is cast with cement, and the tank body is assembled by arc-shaped stainless steel plates (the arc-shaped stainless steel plates are fastened with high-strength bolts and sealing structural adhesives); compared with the traditional civil engineering form and the on-site welding and assembly of steel plates, the present invention can shorten the construction period and extend the service life of the equipment through the above-mentioned construction method, and the main body of the equipment can be modularly disassembled in the later stage, which can be used for off-site reconstruction of the equipment or recycling of the tank body materials. Summary of the invention

[0008] The object of the present invention is to provide an aerobic granular sludge integrated sewage treatment equipment to solve the problems raised in the above background technology.

[0009] The purpose of the present invention can be achieved through the following technical solutions:

[0010] An aerobic granular sludge integrated sewage treatment equipment, comprising an aerobic tank and a water inlet assembly, the aerobic tank comprising a cement base 1 arranged on the ground, the cement base 1 being a circular structure, a cement base 2 coaxial with the cement base 1 being arranged at the center of the inner bottom surface of the cement base 1, a cylindrical outer tank body being fixedly installed on the upper part of the cement base 1, a water outlet pipe being fixedly installed through the outer periphery of the outer tank body at the middle and upper part, a filter screen being installed at one end of the water outlet pipe close to the outer tank body; an inner tank body coaxial with the outer tank body being fixedly installed on the upper part of the cement base 2, the height of the inner tank body being greater than the height of the outer tank body, a sedimentation zone being formed between the inner tank body and the outer tank body, a mixing zone being formed in the inner tank body, and the water inlet assembly being used to guide sewage into the inner tank body at the lower part of the inner tank body;

[0011] A turntable is rotatably mounted on the inner bottom surface of the inner pool body, the periphery of the turntable is in sliding contact with the inner wall of the inner pool body, a hollow disk is fixedly mounted at the center of the top surface of the turntable, and multiple groups of aeration mechanisms distributed in a circumferential array about the axis of the turntable are also fixedly mounted on the top surface of the turntable, one end of the aeration mechanism close to the hollow disk is fixedly connected to the hollow disk in a through-type, a hollow shaft is fixedly connected to the top surface of the hollow disk in a through-type, the top end of the hollow shaft extends to the top of the inner pool body, and is rotatably connected to an air guide component, a spiral stirring blade located at the upper position of the inner pool body is fixedly mounted on the periphery of the hollow shaft, and multiple through holes are evenly opened on the side of the spiral stirring blade;

[0012] The aeration mechanism comprises an aeration component, a dredging component is arranged on the aeration component, and a pressing component used in conjunction with the dredging component is arranged on the inner wall of the inner tank body;

[0013] A driving mechanism is fixedly mounted on the top surface of the inner tank body, and the driving mechanism is transmission-connected to the periphery of the hollow shaft;

[0014] A transmission assembly is disposed on the periphery of the hollow shaft, and the transmission assembly is transmission-connected to a plurality of groups of scum cleaning assemblies which are distributed in an array circumferentially about the axis of the inner pool body.

[0015] Furthermore, the aeration assembly includes an aeration pipe fixedly mounted on the top surface of the rotating disk, and one end of the aeration pipe close to the hollow disk is fixedly connected to the hollow disk in a through-type manner;

[0016] The aeration pipe is a rectangular pipe, and a plurality of aeration holes are arranged in an array along the midline of the length of the top surface of the aeration pipe.

[0017] Further, the dredging assembly includes two sliding columns respectively fixedly installed at the two ends of the top surface of the aeration pipe, a limit plate is fixedly installed on the top of the sliding column, a sliding sleeve is provided on the outer sliding sleeve of the sliding column, a strip plate is fixedly connected between the outer peripheries of the two sliding sleeves, and a spring sleeved on the outer periphery of the sliding column is fixedly connected between the bottom surface of the sliding sleeve and the top surface of the aeration pipe;

[0018] A plurality of dredging needles are installed in an array along the length direction of the bottom surface of the strip plate, the number of the plurality of dredging needles is equal to the number of the plurality of aeration holes, and they are coaxially aligned one by one;

[0019] The diameter of the dredging needle is the same as the diameter of the aeration hole, the bottom of the dredging needle is a conical structure, and the surface of the dredging needle is covered with a rubber layer.

[0020] Furthermore, the clamping assembly includes a connecting shaft, one end of which is fixedly connected to the inner wall of the inner tank body, and the other end of the connecting shaft is rotatably mounted with a pressing wheel, the axis of which intersects and is perpendicular to the axis of the inner tank body;

[0021] When the spring is in a normal supporting state for the sliding sleeve, the height position of the strip plate is aligned with the height of the middle and lower position of the pressing wheel.

[0022] Further, the driving mechanism includes a plurality of support rods 1 fixedly mounted on the top surface of the inner pool body, a mounting plate 1 located directly above the inner pool body is fixedly mounted on the tops of the plurality of support rods 1, a mounting plate 2 is arranged directly above the mounting plate 1, a plurality of support rods 2 are fixedly connected between the bottom surface of the mounting plate 2 and the top surface of the mounting plate 1, and the hollow shaft rotatably penetrates the mounting plate 1 and the mounting plate 2;

[0023] A driving assembly drivingly connected to the hollow shaft is fixedly mounted on the top surface of the first mounting plate;

[0024] The driving assembly includes a motor fixedly mounted on a top surface of the mounting plate and a driven pulley fixedly mounted on the periphery of the hollow shaft, a driving pulley is fixedly mounted on the output shaft end of the motor, and a belt is installed between the driving pulley and the driven pulley.

[0025] Further, the transmission assembly includes a driving gear fixedly mounted on the periphery of the hollow shaft, the driving gear is located above the second mounting plate, and also includes an internal gear and a driven gear rotatably mounted on the top surface of the second mounting plate;

[0026] The inner gear is coaxially sleeved on the periphery of the driving gear, and multiple groups of the foam cleaning components are fixedly connected to the periphery of the inner gear, and the multiple groups of the foam cleaning components are arranged in an array in a circumferential direction about the axis of the inner gear;

[0027] The driven gear is located between the driving gear and the internal gear, and the driven gear is meshed with the driving gear and the internal gear at the same time.

[0028] Furthermore, the foam cleaning assembly includes an L-shaped suspension rod, one end of the L-shaped suspension rod is fixedly connected to the periphery of the inner gear, and the other end of the L-shaped suspension rod is fixedly connected to a scraper 1;

[0029] The lower part of the scraper one extends into the sedimentation area, the upper part of the scraper one is located above the outer pool body, the two ends of the scraper one are in sliding contact with the inner wall of the outer pool body and the outer wall of the inner pool body respectively, the length direction of the scraper one is not perpendicular to the outer wall of the inner pool body and the inner wall of the outer pool body, and the angle between the length direction of the scraper one and the outer wall of the inner pool body is an acute angle.

[0030] Furthermore, a collecting assembly is fixedly installed on the periphery of the outer tank body near the top, and the collecting assembly includes a collecting tank fixedly installed on the periphery of the outer tank body, the collecting tank is located above the water outlet pipe, and a sewage pipe is fixedly connected to the periphery of the collecting tank in a through-type manner;

[0031] The collecting trough is provided with a plurality of scraper 2s, the number of which is equal to the number of the plurality of scraper 1s. The plurality of scraper 2s are respectively aligned with the plurality of scraper 1s. The two ends of the scraper 2 are in sliding contact with the two inner sides of the collecting trough. A connecting block is fixedly connected between the scraper 2 and the scraper 1 at the corresponding position.

[0032] Furthermore, the air guide assembly includes a Y-shaped support rod, the bottom end of the Y-shaped support rod is fixedly connected to the periphery of the collecting tank, and the two top ends of the Y-shaped support rod extend above the hollow shaft and are fixedly mounted with U-shaped limit seats;

[0033] An L-shaped air duct is installed on the top of the Y-shaped support rod through the two U-shaped limit seats, and a rotating tube connector is rotatably installed on one end of the L-shaped air duct close to the hollow shaft. The end of the L-shaped air duct close to the hollow shaft is rotatably connected to the top of the hollow shaft through the rotating tube connector, and the other end of the L-shaped air duct is fixedly connected to a conduit three, and the end of the conduit three away from the L-shaped air duct is connected to an external aeration air supply device.

[0034] Furthermore, the water inlet assembly includes a water pump arranged outside the inner tank body and an annular groove opened at the lower part of the outer periphery of the inner tank body, and a plurality of water outlet holes distributed in an array circumferentially about the axis of the inner tank body are opened on one side of the annular groove close to the inner side of the inner tank body, and the water outlet holes are inclined holes inclined upward;

[0035] The water outlet end of the water pump is fixedly connected with a conduit 1, and the end of the conduit 1 away from the water pump is fixedly penetrated through the inner tank body and is fixedly connected with the annular groove in a through-type manner;

[0036] The water inlet end of the water pump is fixedly connected with a second conduit, and an end of the second conduit away from the water pump extends to the position of the sewage to be treated.

[0037] Beneficial effects of the present invention:

[0038] 1. The present invention can transfer the cleaning step of the floating foam to the sedimentation area during the sewage treatment process through the coordinated arrangement of the water inlet assembly, the outer tank body, the inner tank body driving mechanism, the transmission assembly and the hollow shaft. Compared with the mixing area, the sedimentation area has a relatively slow water flow, the foam is easy to aggregate, and the particle size may be larger, so it is relatively easy to clean. In addition, there are more sedimentation materials in the sedimentation area, and the organic matter content in the floating foam is relatively low, which is easier to remove.

[0039] 2. In the driving mechanism, the driving component drives the hollow shaft to rotate, the hollow shaft drives the turntable to rotate, and the turntable drives multiple groups of aeration mechanisms to perform circumferential rotational dynamic aeration at the bottom of the inner tank body. Compared with the fixed aeration method, the dynamic aeration method can avoid the concentration of bubbles in a certain area, ensure the uniform oxygen concentration in the entire mixing area, make the contact between oxygen and sewage more sufficient, increase the dispersion of bubbles, thereby improving the dissolution efficiency of oxygen and improving the overall sewage treatment effect.

[0040] 3. During the circumferential rotation of the multiple aeration mechanisms of the present invention, each group of dredging components will be pressed down by the pressing components in sequence and periodically, thereby automatically dredging the aeration components periodically; thereby keeping the opening area of ​​the aeration holes consistent, thereby ensuring the uniformity of the aeration airflow, facilitating uniform mixing in the mixing zone, and improving the sewage treatment effect.

[0041] 4. Through the coordinated arrangement of the driving mechanism, the hollow shaft and the transmission assembly, the driving mechanism can simultaneously realize dynamic aeration action and drive the foam cleaning assembly to clean the foam in the sedimentation area: the centralized operation design can reduce mechanical failure points, improve system reliability, and reduce maintenance costs. By adjusting the speed and operation mode of the driving mechanism, it can adapt to different water quality and treatment requirements, achieve greater flexibility and adaptability, and optimize the treatment effect.

[0042] 5. The collection assembly can collect the cleaned foam and automatically transfer it to a designated treatment area, thus avoiding pollution to the external environment of the pool body and improving the environmental friendliness of the present invention.

[0043] 6. In the water inlet assembly, the water pump guides the sewage to be treated into the annular groove through the conduit 2 and the conduit 1. The sewage in the annular groove enters the inner tank body through multiple water outlet holes. The arrangement of the annular groove and multiple water outlet holes allows the sewage to enter the inner tank body uniformly in the circumferential direction, which is beneficial to the mixing efficiency of the sewage, thereby improving the treatment effect. The inclined arrangement of the water outlet holes can make the sewage flow in an oblique upward direction when entering the inner tank body, and the spiral stirring blade drives the sewage to flow downward, which can form turbulence, thereby further improving the mixing efficiency and uniformity of the mixing zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0046] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0047] Figure 3 yes Figure 2 A three-dimensional schematic diagram from another angle;

[0048] Figure 4 yes Figure 3 Enlarged view of part C;

[0049] Figure 5 yes Figure 2 A magnified view of part A;

[0050] Figure 6 yes Figure 1 AA section view;

[0051] Figure 7 yes Figure 6 A magnified view of part B;

[0052] Figure 8 It is a three-dimensional schematic diagram of the internal structure of the inner tank body in the present invention;

[0053] Fig. 9 yes Figure 8 A three-dimensional schematic diagram from another angle;

[0054] Fig.10 yes Figure 8 A magnified view of part D in the middle;

[0055] Fig.11 yes Figure 8 Enlarged view of part E in the middle;

[0056] Fig.12 yes Figure 8 Enlarged view of part F;

[0057] Fig.13 is a three-dimensional schematic diagram of the outer pool body and the inner pool body in Example 4 of the present invention;

[0058] The reference numerals are as follows:

[0059] 1- ground, 2- cement base 1, 3- outer pool body, 4- water inlet assembly, 5- collection assembly, 6- floating foam cleaning assembly, 7- inner pool body, 8- installation plate 1, 9- support rod 1, 10- driving assembly, 11- support rod 2, 12- installation plate 2, 13- transmission assembly, 14- air guide assembly, 15- outlet pipe, 16- collection tank, 17- sewage pipe, 18- catheter 1, 19- water pump, 20- catheter 2, 21- scraper 2, 22- connection block, 23- scraper 1, 24- L-shaped suspension rod, 25- Y-shaped support rod, 26- U-shaped limit seat, 27- L-shaped air guide pipe, 28- catheter 3 , 29-cement base two, 30-hollow shaft, 31-rotating pipe connector, 32-motor, 33-driving pulley, 34-driven pulley, 35-belt, 36-internal gear, 37-driving gear, 38-driven gear, 39-spiral stirring blade, 40-through hole, 41-turntable, 42-hollow disk, 43-annular groove, 44-water outlet, 45-connecting shaft, 46-pressure wheel, 47-aeration pipe, 48-aeration hole, 49-strip plate, 50-limiting plate, 51-sliding sleeve, 52-spring, 53-dredging needle, 54-arc prefabricated block one, 55-arc prefabricated block two, 56-sliding column. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] Embodiment 1:

[0062] See also Figures 1 to 9 , Fig.11 and Fig.12 In an embodiment of the present invention, an aerobic granular sludge integrated sewage treatment equipment includes an aerobic tank and a water inlet assembly 4. The aerobic tank includes a cement base 2 arranged on the ground 1. The cement base 2 is a circular structure. A cement base 29 coaxial with the cement base 2 is arranged at the center of the inner bottom surface of the cement base 2. A cylindrical outer tank body 3 is fixedly installed on the upper part of the cement base 2. An outlet pipe 15 is fixedly installed through the outer periphery of the outer tank body 3 at the middle and upper position. A filter screen is installed at one end of the outlet pipe 15 close to the outer tank body 3; an inner tank body 7 coaxial with the outer tank body 3 is fixedly installed on the upper part of the cement base 29. The height of the inner tank body 7 is greater than the height of the outer tank body 3. A sedimentation zone is formed between the inner tank body 7 and the outer tank body 3. A mixing zone is formed in the inner tank body 7. The water inlet assembly 4 is used to guide sewage into the inner tank body 7 at the lower position of the inner tank body 7;

[0063] A turntable 41 is rotatably mounted on the inner bottom surface of the inner pool body 7, and the periphery of the turntable 41 is in sliding contact with the inner wall of the inner pool body 7. A hollow disk 42 is fixedly mounted at the center of the top surface of the turntable 41. A plurality of aeration mechanisms distributed in a circumferential array about the axis of the turntable 41 are also fixedly mounted on the top surface of the turntable 41. One end of the aeration mechanism close to the hollow disk 42 is fixedly connected to the hollow disk 42 in a through-type manner. A hollow shaft 30 is fixedly connected to the top surface of the hollow disk 42 in a through-type manner. The top end of the hollow shaft 30 extends to the top of the inner pool body 7 and is rotatably connected to an air guide assembly 14. A spiral stirring blade 39 located at the upper position of the inner pool body 7 is fixedly mounted on the periphery of the hollow shaft 30, and a plurality of through holes 40 are evenly opened on the side of the spiral stirring blade 39.

[0064] The aeration mechanism includes an aeration component, a dredging component is arranged on the aeration component, and a pressing component used in conjunction with the dredging component is arranged on the inner wall of the inner tank body 7;

[0065] A driving mechanism is fixedly mounted on the top surface of the inner tank body 7, and the driving mechanism is transmission-connected to the periphery of the hollow shaft 30;

[0066] A transmission assembly 13 is disposed on the periphery of the hollow shaft 30 , and the transmission assembly 13 is transmission-connected to a plurality of groups of scum cleaning assemblies 6 that are distributed in an array in the circumferential direction about the axis of the inner pool body 7 .

[0067] The existing aerobic tank is generally a rectangular structure, while in the present invention, the aerobic tank is a circular structure with inner and outer coaxial structures by setting the cement base 1 2, the outer tank body 3, the inner tank body 7 and the cement base 2 29. The water flow in the circular tank body has a more uniform flow velocity distribution during the flow process, which helps to slow down the resuspension of sludge in the water flow, thereby improving the sedimentation effect. The inner tank body 7 is used for mixing, and the circular structure can usually promote better water flow rotation, thereby improving the mixing efficiency, which is conducive to improving the growth and metabolism of aerobic microorganisms. Due to the optimization of the flow pattern, oxygen can be more evenly distributed in the reaction zone, improving the activity and treatment efficiency of microorganisms. Therefore, the coaxial inner and outer tank body circular design has obvious advantages over the rectangular design in terms of sedimentation effect, ease of operation and treatment efficiency, which helps to improve the overall performance of sewage treatment. And compared with the rectangular tank body, the foundation support strength and design required for the circular tank body are relatively simple, so the cost of the foundation may be reduced under certain geological conditions.

[0068] In the present invention, the height of the inner tank body 7 is increased to increase the residence time of sewage in the inner tank body 7, thereby providing a longer contact time, allowing aerobic microorganisms to more effectively decompose pollutants and improve the sewage treatment effect.

[0069] The aeration assembly includes an aeration pipe 47 fixedly mounted on the top surface of the rotating disk 41, and one end of the aeration pipe 47 close to the hollow disk 42 is fixedly connected to the hollow disk 42 in a through-type manner;

[0070] The aeration pipe 47 is a rectangular pipe, and a plurality of aeration holes 48 are arranged in an array along the midline of the top surface of the aeration pipe 47 .

[0071] The dredging assembly includes two slide posts 56 respectively fixedly mounted at both ends of the top surface of the aeration pipe 47, a limit plate 50 is fixedly mounted on the top of the slide post 56, a slide sleeve 51 is provided on the outer sliding sleeve of the slide post 56, a strip plate 49 is fixedly connected between the outer peripheries of the two slide sleeves 51, and a spring 52 is fixedly connected between the bottom surface of the slide sleeve 51 and the top surface of the aeration pipe 47 and is sleeved on the outer periphery of the slide post 56;

[0072] A plurality of dredging needles 53 are installed in an array along the length direction of the strip plate 49 on the bottom surface thereof. The number of the plurality of dredging needles 53 is equal to the number of the plurality of aeration holes 48 and they are coaxially aligned one by one.

[0073] The diameter of the dredging needle 53 is the same as the diameter of the aeration hole 48 , the bottom of the dredging needle 53 is a conical structure, and the surface of the dredging needle 53 is covered with a rubber layer.

[0074] The clamping assembly includes a connecting shaft 45, one end of which is fixedly connected to the inner wall of the inner tank body 7, and the other end of the connecting shaft 45 is rotatably mounted with a pressing wheel 46, the axis of which intersects and is perpendicular to the axis of the inner tank body 7;

[0075] When the spring 52 is in a normal supporting state for the sliding sleeve 51 , the height position of the strip plate 49 is aligned with the height of the middle and lower position of the pressing wheel 46 .

[0076] The driving mechanism includes a plurality of support rods 9 fixedly mounted on the top surface of the inner pool body 7, a mounting plate 8 located directly above the inner pool body 7 is fixedly mounted on the top of the plurality of support rods 9, a mounting plate 2 12 is arranged directly above the mounting plate 1 8, a plurality of support rods 2 11 are fixedly connected between the bottom surface of the mounting plate 2 12 and the top surface of the mounting plate 1 8, and a hollow shaft 30 rotatably penetrates the mounting plate 1 8 and the mounting plate 2 12;

[0077] A driving assembly 10 which is transmission-connected to the hollow shaft 30 is fixedly mounted on the top surface of the mounting plate 8;

[0078] The driving assembly 10 includes a motor 32 fixedly mounted on the top surface of the mounting plate 8 and a driven pulley 34 fixedly mounted on the periphery of the hollow shaft 30. A driving pulley 33 is fixedly mounted on the output shaft end of the motor 32, and a belt 35 is installed between the driving pulley 33 and the driven pulley 34.

[0079] The transmission assembly 13 includes a driving gear 37 fixedly mounted on the outer periphery of the hollow shaft 30, the driving gear 37 is located above the second mounting plate 12, and also includes an internal gear 36 and a driven gear 38 rotatably mounted on the top surface of the second mounting plate 12;

[0080] The inner gear 36 is coaxially sleeved on the periphery of the driving gear 37. The periphery of the inner gear 36 is fixedly connected with a plurality of groups of floating foam cleaning components 6. The plurality of groups of floating foam cleaning components 6 are arranged in a circumferential array about the axis of the inner gear 36.

[0081] The driven gear 38 is located between the driving gear 37 and the internal gear 36 , and the driven gear 38 is meshed with both the driving gear 37 and the internal gear 36 .

[0082] In the driving assembly 10, the motor 32 drives the hollow shaft 30 to rotate through the driving pulley 33, the belt 35 and the driven pulley 34, and the rotation of the hollow shaft 30 drives the driving gear 37 to rotate, and the driving gear 37 drives the internal gear 36 to rotate through the driven gear 38. The transmission assembly 13 is equivalent to forming a variable speed transmission structure through the arrangement of the driving gear 37, the driven gear 38 and the internal gear 36, so that the rotation speed of the hollow shaft 30 is different from the rotation speed of the floating foam cleaning assembly 6. Usually, the rotation speed of the hollow shaft 30 is greater than the rotation speed of the floating foam cleaning assembly 6. Therefore, the transmission assembly 13 can change the transmission speed ratio by designing driving gears 37, driven gears 38 and spiral stirring blades 39 of different sizes to obtain a suitable differential speed. At the same time, the transmission assembly 13 can also use a reducer in the prior art, which can adjust the transmission speed ratio more flexibly.

[0083] The foam cleaning assembly 6 includes an L-shaped suspension rod 24, one end of the L-shaped suspension rod 24 is fixedly connected to the periphery of the inner gear 36, and the other end of the L-shaped suspension rod 24 is fixedly connected to a scraper 23;

[0084] The lower part of the scraper 23 extends into the sedimentation area, the upper part of the scraper 23 is located above the outer pool body 3, the two ends of the scraper 23 are in sliding contact with the inner wall of the outer pool body 3 and the outer wall of the inner pool body 7 respectively, the length direction of the scraper 23 is not perpendicular to the outer wall of the inner pool body 7 and the inner wall of the outer pool body 3, and the angle between the length direction of the scraper 23 and the outer wall of the inner pool body 7 is an acute angle.

[0085] In the foam cleaning assembly 6, the L-shaped suspension rod 24 rotates around the axis of the outer tank body 3 as the internal gear 36 rotates, and the L-shaped suspension rod 24 drives the scraper 23 to rotate adaptively on the water surface of the sedimentation area. Figure 6 As shown, the scraper 23 should rotate clockwise to allow the foam to gather along the side of the scraper 23 toward the inner wall of the outer pool body 3, so that it is continuously guided to the outside of the outer pool body 3, thereby achieving the purpose of automatic and continuous cleaning of the foam.

[0086] The air guide assembly 14 includes a Y-shaped support rod 25, the bottom end of the Y-shaped support rod 25 is fixedly connected to the periphery of the collection tank 16, and the two top ends of the Y-shaped support rod 25 extend above the hollow shaft 30 and are fixedly installed with a U-shaped limit seat 26;

[0087] An L-shaped air guide tube 27 is installed on the top of the Y-shaped support rod 25 through two U-shaped limit seats 26. A rotating tube connector 31 is rotatably installed on one end of the L-shaped air guide tube 27 close to the hollow shaft 30. The end of the L-shaped air guide tube 27 close to the hollow shaft 30 is rotatably connected to the top of the hollow shaft 30 through the rotating tube connector 31. The other end of the L-shaped air guide tube 27 is fixedly connected to a conduit three 28. The end of the conduit three 28 away from the L-shaped air guide tube 27 is connected to an external aeration air supply device.

[0088] The existing aerobic biological pool still has the following shortcomings during use:

[0089] 1. The water surface of the mixing zone will form foam due to aeration. Usually, additional cleaning devices are set up on the surface of the mixing zone to clean the foam. However, the water flow in the mixing zone is more intense, and the foam is constantly stirred, which may form new foam or destroy existing aggregates at any time, making the cleaning work more complicated. In addition, the foam in the mixing zone may contain more microorganisms and organic matter, which will increase the adhesion of the foam and make it more difficult to clean thoroughly.

[0090] 2. The aeration pipes in the mixing zone are usually fixedly installed at the bottom of the pool. The installation intervals between the aeration pipes make it impossible for the bubbles to be evenly distributed in the mixing zone. It is usually necessary to increase the arrangement density of the aeration pipes to improve the aeration effect, which increases the construction cost of the equipment. In addition, although the aeration holes of the aeration pipes will not be completely blocked in the long term, dirt and impurities may adhere to the hole walls, causing certain blockage problems, resulting in uneven airflow from different aeration holes, which is not conducive to mixing uniformity in the mixing zone and reduces the sewage treatment effect.

[0091] When the present invention is used:

[0092] The water inlet component 4 guides the sewage from the lower position of the inner tank body 7 to the mixing area in the inner tank body 7, and the aeration component in the inner tank body 7 aerates the sewage to promote microbial sewage treatment; with the continuous introduction of sewage in the inner tank body 7, the treated sewage will overflow at the top of the inner tank body 7 to the sedimentation area between the inner tank body 7 and the outer tank body 3, and the water in the sedimentation area will be discharged to the designated position through the outlet pipe 15 after sedimentation; it should be noted that, initially, the outlet pipe 15 is in a closed state, and when the water surface in the sedimentation area is almost level with the top surface of the outer tank body 3, the outlet pipe 15 is opened for drainage, and the water inlet component 4 is controlled so that the water supply speed of the water inlet component 4 and the drainage speed in the outlet pipe 15 should be consistent, so that the entire sewage treatment process can be continuous.

[0093] During the process, the foam formed by aeration in the inner tank body 7 will enter the sedimentation area with the flow of water. At this time, the driving component drives the hollow shaft 30 to rotate. The rotation of the hollow shaft 30 drives multiple groups of foam cleaning components 6 to scrape circumferentially on the surface of the sedimentation area through the transmission component 13, so as to continuously clean the foam on the water surface of the sedimentation area. Therefore, in the present invention, the foam cleaning step can be transferred to the sedimentation area during the sewage treatment process through the coordinated arrangement of the water inlet component 4, the outer tank body 3, the inner tank body 7 driving mechanism, the transmission component 13 and the hollow shaft 30. Compared with the mixing area, the sedimentation area is relatively easy to clean up because the water flow is relatively slow, the foam is easy to aggregate, the particle size may be larger. In addition, there are more sedimentation materials in the sedimentation area, and the organic matter content in the foam is relatively low, which is easier to remove. Moreover, in the mixing area, due to the need to maintain the stirring and oxygen supply of the water body, the use of traditional physical cleaning methods (such as skimming or mechanical cleaning) may interfere with the normal operation of the system, while cleaning the foam in the sedimentation area can avoid the possibility of interference.

[0094] During aeration, the external aeration gas supply device guides the gas into the hollow shaft 30 through the conduit 3 28 and the L-shaped air guide tube 27, and the gas enters the hollow disk 42 through the hollow shaft 30, and then enters the multiple aeration mechanisms, thereby achieving the purpose of aeration; in the driving mechanism, the driving component 10 drives the hollow shaft 30 to rotate, the hollow shaft 30 drives the turntable 41 to rotate, and the turntable 41 drives the multiple aeration mechanisms to perform circumferential rotational dynamic aeration at the bottom of the inner pool body 7. Compared with the fixed aeration method, the dynamic aeration method can avoid the concentration of bubbles in a certain area, ensure the uniform oxygen concentration in the entire mixing area, make the contact between oxygen and sewage more sufficient, increase the dispersion of bubbles, and thus improve the dissolution efficiency of oxygen; at the same time, the circumferentially moving aeration mechanism can induce a stronger water flow, thereby improving the mixing efficiency, ensuring the full mixing of sewage and oxygen and nutrients, and improving the activity of microorganisms; and the dynamic flow helps to reduce the formation of sediments at the bottom of the pool, maintain the activity of sewage during the entire treatment process, and improve the overall sewage treatment effect. Therefore, dynamic aeration in the mixing zone can significantly improve the aeration effect, which not only optimizes the transfer of oxygen and the mixing of water bodies, but also has a positive role in promoting the overall efficiency of sewage treatment.

[0095] During the circumferential rotation of the multiple aeration mechanisms, each group of dredging components will be sequentially and periodically subjected to the downward pressure of the pressing components, thereby periodically and automatically dredging the aeration components; specifically, in the dredging components, during the contact between the strip plate 49 and the pressure wheel 46, the pressure wheel 46 exerts a downward pressure on the strip plate 49, and the strip plate 49 moves downward under the force, driving the bottom ends of the multiple dredging needles 53 to insert into the multiple aeration holes 48. After the pressure wheel 46 is separated from the strip plate 49, the elastic force of the spring 52 drives the multiple dredging needles 53 to reset and rise and quickly separate from the multiple aeration holes 48; the action of inserting the dredging needles 53 into the aeration holes 48 can remove impurities attached to the hole walls of the aeration holes 48, so that the opening area of ​​the aeration holes 48 remains consistent, thereby ensuring the uniformity of the aeration airflow, which is beneficial to the mixing uniformity in the mixing area and improves the sewage treatment effect.

[0096] Through the coordinated arrangement of the driving mechanism, the hollow shaft 30 and the transmission assembly 13, the driving mechanism can simultaneously realize dynamic aeration action and drive the foam cleaning assembly 6 to clean the foam in the sedimentation area: the centralized operation design can reduce mechanical failure points, improve the reliability of the system, and reduce maintenance costs. By adjusting the speed and operation mode of the driving mechanism, it can adapt to different water qualities and treatment requirements, achieve greater flexibility and adaptability, and optimize the treatment effect. Therefore, this setting not only improves the aeration effect, but also automatically cleans the foam, improving the efficiency and flexibility of the equipment. It significantly improves the treatment performance, reduces energy consumption and maintenance difficulty, and can effectively meet the needs of modern environmental protection projects.

[0097] When the hollow shaft 30 rotates, it also drives the spiral stirring blades 39 to stir and rotate. The rotation of the spiral stirring blades 39 also has the function of guiding the sewage at the upper part to the lower part, thereby further improving the mixing efficiency of the sewage in the inner tank body 7. The setting of the through hole 40 on the spiral stirring blades 39 ensures that the sewage in the inner tank body 7 can overflow from the top of the inner tank body 7.

[0098] Embodiment 2:

[0099] See also Figure 1 to Figure 3 and Figure 5 to Figure 7 On the basis of Example 1, a collecting assembly 5 is fixedly installed on the periphery of the outer tank body 3 near the top, and the collecting assembly 5 includes a collecting tank 16 fixedly installed on the periphery of the outer tank body 3, and the collecting tank 16 is located above the water outlet pipe 15, and the periphery of the collecting tank 16 is fixedly connected with a sewage pipe 17 in a through-type manner;

[0100] A plurality of scraper blades 21 equal in number to the plurality of scraper blades 1 23 are provided in the collecting trough 16. The plurality of scraper blades 21 are aligned with the plurality of scraper blades 1 23 respectively. Both ends of the scraper blade 21 are in sliding contact with the two inner sides of the collecting trough 16. A connecting block 22 is fixedly connected between the scraper blade 21 and the scraper blade 1 23 at the corresponding position.

[0101] During the cleaning process of the floating foam, the scraper 23 in the floating foam cleaning assembly 6 continuously guides the floating foam toward the inner wall of the outer tank body 3, and the accumulated floating foam gradually covers the top surface of the outer tank body 3 and enters the collecting tank 16. The collecting tank 16 collects the floating foam in a centralized manner and then guides the floating foam to a designated location for treatment through the sewage pipe 17.

[0102] In addition, the scraper 1 23 will drive the scraper 2 21 to rotate in the collection tank 16 during the rotation process. Similar to the scraper 1 23, the scraper 2 21 will guide the floating foam in the collection tank 16 to the side away from the outer tank body 3, so that the floating foam can stably enter the entrance of the sewage pipe 17, avoiding the continuous accumulation of floating foam in the collection tank 16; therefore, through the setting of the collecting component 5, the cleaned floating foam can be centrally collected and automatically transmitted to the designated treatment area, avoiding pollution to the external environment of the outer tank body 3, thereby improving the environmental protection of the present invention.

[0103] Embodiment 3:

[0104] See also Figure 1 ,like Figure 2 and Figure 8 to Figure 10 On the basis of Example 1, the water inlet assembly 4 includes a water pump 19 arranged outside the inner tank body 7 and an annular groove 43 opened at the lower part of the outer periphery of the inner tank body 7, and a plurality of water outlet holes 44 are arranged in an array around the axis of the inner tank body 7 on one side of the annular groove 43 close to the inner side of the inner tank body 7, and the water outlet holes 44 are inclined holes inclined upward;

[0105] The water outlet of the water pump 19 is fixedly connected with a conduit 18, and the end of the conduit 18 away from the water pump 19 is fixedly passed through the inner tank body 7 and is fixedly connected with the annular groove 43 in a through-type manner;

[0106] The water inlet end of the water pump 19 is fixedly connected with a second conduit 20, and one end of the second conduit 20 away from the water pump 19 extends to the location of the sewage to be treated.

[0107] In the water inlet assembly 4, the water pump 19 guides the sewage to be treated into the annular groove 43 through the conduit 20 and the conduit 1 18. The sewage in the annular groove 43 enters the inner tank body 7 through multiple water outlet holes 44. The arrangement of the annular groove 43 and the multiple water outlet holes 44 allows the sewage to enter the inner tank body 7 evenly in the circumferential direction, which is beneficial to the mixing efficiency of the sewage, thereby improving the treatment effect. In addition, the inclined arrangement of the water outlet holes 44 enables the sewage to flow in an oblique upward direction when entering the inner tank body 7. The spiral stirring blades 39 drive the sewage to flow downward, which can form turbulence, thereby further improving the mixing efficiency and uniformity of the mixing zone.

[0108] Embodiment 4:

[0109] See also Fig.13On the basis of Example 1, the main structure of the outer tank body 3 in this embodiment is assembled from a plurality of arc-shaped prefabricated blocks 1 54, and the main structure of the inner tank body 7 is assembled from a plurality of arc-shaped prefabricated blocks 2 55;

[0110] The arc-shaped prefabricated block 1 54 and the arc-shaped prefabricated block 2 55 can be made of 304 or 316L high-performance stainless steel, and are large-scale structural assembly components prefabricated in factories to form an assembled aerobic biological pool body. Specifically, the arc-shaped prefabricated module is obtained by pressing and forming stainless steel, and bolted assembly holes are distributed around it and reinforced with profiles, and waterproof sealants are used to assemble it on site into a hydraulic structure (the assembly structure has extremely high requirements for module processing accuracy and deformation control. It is necessary to ensure that the bolting holes of each unit are aligned after arc pressing and forming. Three-dimensional software simulation and layout can be used to cooperate with CNC automated production equipment to carry out unit prefabrication work, which is efficient and has good product accuracy and quality).

[0111] Real-time testing is carried out during the assembly process. After assembly, anti-corrosion treatment is carried out and water testing is carried out for 24 hours. If the deformation degree does not exceed 5mm, it is qualified.

[0112] Compared with traditional civil engineering and on-site welding and assembly of steel plates, the advantages of bolted assembly are as follows:

[0113] 1. Short on-site construction period;

[0114] 2. Reduced carbon emissions;

[0115] 3. Prefabrication in the factory, on-site splicing, fixed and aligned bolt hole positions, small overall error;

[0116] 4. The service life of stainless steel can be longer than that of reinforced concrete structures;

[0117] 5. The module can be rebuilt in a different location after being disassembled.

[0118] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An aerobic granular sludge integrated sewage treatment equipment, comprising an aerobic tank and a water inlet component (4), characterized in that: The aerobic pool comprises a cement base (2) arranged on the ground (1), the cement base (2) being of a circular structure, a cement base (2) (2) being arranged at the center of the inner bottom surface of the cement base (2) and being coaxial with the cement base (2), a cylindrical outer pool body (3) being fixedly mounted on the upper part of the cement base (2), a water outlet pipe (15) being fixedly mounted through the periphery of the outer pool body (3) at the middle and upper part, a filter being mounted at one end of the water outlet pipe (15) close to the outer pool body (3); an inner pool body (7) being coaxial with the outer pool body (3) being fixedly mounted on the upper part of the cement base (2), the height of the inner pool body (7) being greater than the height of the outer pool body (3), a sedimentation zone being formed between the inner pool body (7) and the outer pool body (3), a mixing zone being formed in the inner pool body (7), and the water inlet assembly (4) being used to guide sewage into the inner pool body (7) at the lower part of the inner pool body (7); A turntable (41) is rotatably mounted on the inner bottom surface of the inner pool body (7), the periphery of the turntable (41) is in sliding contact with the inner wall of the inner pool body (7), a hollow disk (42) is fixedly mounted at the center of the top surface of the turntable (41), and a plurality of aeration mechanisms are also fixedly mounted on the top surface of the turntable (41) and are distributed in an array circumferentially about the axis of the turntable (41), one end of the aeration mechanism close to the hollow disk (42) is fixedly connected to the hollow disk (42) in a through-type manner, a hollow shaft (30) is fixedly connected to the top surface of the hollow disk (42), the top end of the hollow shaft (30) extends to the top of the inner pool body (7) and is rotatably connected to an air guide assembly (14), a spiral stirring blade (39) located at the upper position of the inner pool body (7) is fixedly mounted on the periphery of the hollow shaft (30), and a plurality of through holes (40) are evenly opened on the side surface of the spiral stirring blade (39); The aeration mechanism comprises an aeration component, a dredging component is arranged on the aeration component, and a pressing component used in conjunction with the dredging component is arranged on the inner wall of the inner tank body (7); A driving mechanism is fixedly mounted on the top surface of the inner tank body (7), and the driving mechanism is drivingly connected to the periphery of the hollow shaft (30); A transmission assembly (13) is disposed on the periphery of the hollow shaft (30), and the transmission assembly (13) is transmission-connected to a plurality of groups of scum cleaning assemblies (6) that are distributed in an array in the circumferential direction about the axis of the inner tank body (7); The aeration assembly comprises an aeration pipe (47) fixedly mounted on the top surface of the rotating disk (41), wherein one end of the aeration pipe (47) close to the hollow disk (42) is fixedly connected to the hollow disk (42) in a through-type manner; The aeration pipe (47) is a rectangular pipe, and a plurality of aeration holes (48) are arranged in an array along the midline of the length of the top surface of the aeration pipe (47); The dredging assembly comprises two sliding columns (56) respectively fixedly mounted at two ends of the top surface of the aeration pipe (47); a limit plate (50) is fixedly mounted on the top of the sliding column (56); a sliding sleeve (51) is provided on the outer sliding sleeve of the sliding column (56); a strip plate (49) is fixedly connected between the outer peripheries of the two sliding sleeves (51); and a spring (52) sleeved on the outer periphery of the sliding column (56) is fixedly connected between the bottom surface of the sliding sleeve (51) and the top surface of the aeration pipe (47); A plurality of dredging needles (53) are installed in an array along the length direction of the bottom surface of the strip plate (49), the number of the plurality of dredging needles (53) being equal to the number of the plurality of aeration holes (48), and being coaxially aligned one by one; The diameter of the dredging needle (53) is the same as the diameter of the aeration hole (48); the bottom of the dredging needle (53) is a conical structure, and the surface of the dredging needle (53) is covered with a rubber layer.

2. The aerobic granular sludge integrated sewage treatment equipment according to claim 1 is characterized in that: The clamping assembly comprises a connecting shaft (45), one end of the connecting shaft (45) is fixedly connected to the inner wall of the inner tank body (7), and the other end of the connecting shaft (45) is rotatably mounted with a pressing wheel (46), the axis of the pressing wheel (46) intersecting with and perpendicular to the axis of the inner tank body (7); When the spring (52) is in a normal supporting state for the sliding sleeve (51), the height position of the strip plate (49) is aligned with the height of the middle and lower position of the pressing wheel (46).

3. The aerobic granular sludge integrated sewage treatment equipment according to claim 1, characterized in that: The driving mechanism comprises a plurality of support rods (9) fixedly mounted on the top surface of the inner pool body (7); a mounting plate (8) located directly above the inner pool body (7) is fixedly mounted on the tops of the plurality of support rods (9); a mounting plate (12) is disposed directly above the mounting plate (8); a plurality of support rods (11) are fixedly connected between the bottom surface of the mounting plate (12) and the top surface of the mounting plate (8); and the hollow shaft (30) is rotatably connected to penetrate the mounting plate (8) and the mounting plate (12); A driving assembly (10) drivingly connected to the hollow shaft (30) is fixedly mounted on the top surface of the first mounting plate (8); The driving assembly (10) comprises a motor (32) fixedly mounted on the top surface of the mounting plate (8) and a driven pulley (34) fixedly mounted on the periphery of the hollow shaft (30), a driving pulley (33) fixedly mounted on the output shaft end of the motor (32), and a belt (35) installed between the driving pulley (33) and the driven pulley (34).

4. The aerobic granular sludge integrated sewage treatment equipment according to claim 3 is characterized in that: The transmission assembly (13) comprises a driving gear (37) fixedly mounted on the periphery of the hollow shaft (30), the driving gear (37) being located above the second mounting plate (12), and further comprises an internal gear (36) and a driven gear (38) rotatably mounted on the top surface of the second mounting plate (12); The inner gear (36) is coaxially sleeved on the periphery of the driving gear (37), and a plurality of groups of the foam cleaning components (6) are fixedly connected to the periphery of the inner gear (36), and the plurality of groups of the foam cleaning components (6) are arranged in an array in the circumferential direction about the axis of the inner gear (36); The driven gear (38) is located between the driving gear (37) and the internal gear (36), and the driven gear (38) is meshed with the driving gear (37) and the internal gear (36) at the same time.

5. The aerobic granular sludge integrated sewage treatment equipment according to claim 4, characterized in that: The foam cleaning assembly (6) comprises an L-shaped suspension rod (24), one end of the L-shaped suspension rod (24) is fixedly connected to the periphery of the internal gear (36), and the other end of the L-shaped suspension rod (24) is fixedly connected to a scraper blade 1 (23); The lower part of the scraper blade (23) extends into the sedimentation zone, the upper part of the scraper blade (23) is located above the outer tank body (3), the two ends of the scraper blade (23) are in sliding contact with the inner wall of the outer tank body (3) and the outer wall of the inner tank body (7), respectively, the length direction of the scraper blade (23) is not perpendicular to the outer wall of the inner tank body (7) and the inner wall of the outer tank body (3), and the angle between the length direction of the scraper blade (23) and the outer wall of the inner tank body (7) is an acute angle.

6. The aerobic granular sludge integrated sewage treatment equipment according to claim 5, characterized in that: A collecting assembly (5) is fixedly mounted on the periphery of the outer tank body (3) near the top, the collecting assembly (5) comprising a collecting trough (16) fixedly mounted on the periphery of the outer tank body (3), the collecting trough (16) being located above the water outlet pipe (15), and a sewage discharge pipe (17) is fixedly connected to the periphery of the collecting trough (16) in a through-type manner; The collecting trough (16) is provided with a plurality of scraper blades (21) equal in number to the plurality of scraper blades (23); the plurality of scraper blades (21) are aligned with the plurality of scraper blades (23) respectively; the two ends of the scraper blades (21) are in sliding contact with the two inner sides of the collecting trough (16); and a connecting block (22) is fixedly connected between the scraper blades (21) and the scraper blades (23) at corresponding positions.

7. The aerobic granular sludge integrated sewage treatment equipment according to claim 6, characterized in that: The air guide assembly (14) comprises a Y-shaped support rod (25), the bottom end of the Y-shaped support rod (25) being fixedly connected to the periphery of the collecting tank (16), and the two top ends of the Y-shaped support rod (25) extending above the hollow shaft (30) and both being fixedly mounted with a U-shaped limit seat (26); An L-shaped air guide tube (27) is mounted on the top end of the Y-shaped support rod (25) via two U-shaped limit seats (26); a rotating tube connector (31) is rotatably mounted on one end of the L-shaped air guide tube (27) close to the hollow shaft (30); an end of the L-shaped air guide tube (27) close to the hollow shaft (30) is rotatably connected to the top end of the hollow shaft (30) via the rotating tube connector (31); a guide tube three (28) is fixedly connected to the other end of the L-shaped air guide tube (27); and an end of the guide tube three (28) away from the L-shaped air guide tube (27) is connected to an external aeration and air supply device.

8. The aerobic granular sludge integrated sewage treatment equipment according to claim 1, characterized in that: The water inlet assembly (4) comprises a water pump (19) arranged outside the inner tank body (7) and an annular groove (43) provided at a lower position of the outer periphery of the inner tank body (7); a plurality of water outlet holes (44) arranged in an array circumferentially with respect to the axis of the inner tank body (7) are provided on one side of the annular groove (43) close to the inner periphery of the inner tank body (7); the water outlet holes (44) are inclined holes inclined upward; The water outlet end of the water pump (19) is fixedly connected to a conduit 1 (18); an end of the conduit 1 (18) away from the water pump (19) is fixedly passed through the inner tank body (7) and is fixedly connected to the annular groove (43); The water inlet end of the water pump (19) is fixedly connected to a second conduit (20), and an end of the second conduit (20) away from the water pump (19) extends to the location of the sewage to be treated.

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