A water distribution device for an anaerobic sewage reactor

Abstract

The present invention provides a water distribution device for a sewage anaerobic reactor, belonging to the technical field of sewage treatment equipment. The water distribution device for the sewage anaerobic reactor includes a reaction tower and a water distribution mechanism installed at the bottom inside the reaction tower. The water distribution mechanism is used to evenly distribute wastewater in the reaction tower. The water distribution mechanism includes a driving assembly, a partition plate, a water distribution plate, a rotating ring, and a fixed ring. The rotating ring and the fixed ring are coaxially arranged and the axis coincides with the axis of the reaction tower. The rotating ring is rotatably installed below the fixed ring. There are multiple partition plates and water distribution plates, and both are sector plates. The multiple partition plates are evenly distributed along the circumference of the fixed ring, and the multiple water distribution plates are evenly distributed along the circumference of the rotating ring and are arranged staggered with the multiple partition plates. The two sides of the top of the water distribution plate respectively abut against one side of the bottom of two adjacent partition plates. A water distribution groove is formed in the middle of the water distribution plate along its radial direction. It can change the water distribution position and water distribution direction of the water distribution groove, and achieve uniform distribution of wastewater in the reactor.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment equipment, and particularly relates to a water distribution device for a sewage anaerobic reactor. Background Art

[0002] The water distribution device of a sewage anaerobic reactor is an important component in the reactor. The water distribution device plays a role in distributing influent water, achieving hydraulic agitation, and ensuring uniform distribution of influent water in the sewage anaerobic reactor. At the same time, it promotes the rapid mixing of influent organic matter and sludge, thereby improving the treatment efficiency of the reactor.

[0003] A Chinese patent with the authorization announcement number CN113896321B discloses an anaerobic wastewater treatment device, which includes an anaerobic tower. A swirl water distributor is arranged at the inner bottom of the anaerobic tower. The swirl water distributor includes a cone and a connecting pipe. An inlet is opened at the top of the cone. The connecting pipe penetrates through the side wall of the anaerobic tower and is hermetically connected to the inlet. A water collection cavity is opened inside the cone, and multiple water distribution layers are arranged vertically inside the cone. It is used to solve the problems that it is difficult to adjust the effluent speed to the optimal state in the prior art, and the effluent sewage cannot be fully mixed with the sludge, resulting in a low sewage treatment efficiency of the reactor.

[0004] Most of the existing water distribution devices use a swirl water distributor to form a swirl water distribution at the particle sludge area at the bottom of the reactor at the water outlet of the water distribution port, so that the sewage can be mixed with the sludge and the treatment efficiency of the anaerobic reactor can be improved.

[0005] Due to the fixed position of the water distribution port of the existing water distribution device, the wastewater distribution in the reactor is uneven when the device distributes water. At the same time, impurities such as suspended solids and sludge in the wastewater are easily accumulated on the surface of the water distributor, gradually blocking the water distribution port and affecting the water distribution effect. Summary of the Invention

[0006] The purpose of the present invention is to provide a water distribution device for a sewage anaerobic reactor, aiming to solve the problem that the wastewater distribution in the reactor is uneven when the existing water distribution device distributes water due to the fixed position of the water distribution port.

[0007] To achieve the above object, the present invention provides the following technical solution: A water distribution device for an anaerobic sewage reactor, comprising a reaction tower and a water distribution mechanism installed at the bottom inside the reaction tower. The water distribution mechanism is used to evenly distribute wastewater in the reaction tower. The water distribution mechanism includes a driving component, a partition plate, a water distribution plate, a rotating ring and a fixed ring. The rotating ring and the fixed ring are coaxially arranged and their axes coincide with the axis of the reaction tower. The rotating ring is rotatably installed below the fixed ring. There are multiple partition plates and water distribution plates, and both are sector plates. The multiple partition plates are evenly distributed along the circumference of the fixed ring. The multiple water distribution plates are evenly distributed along the circumference of the rotating ring and are arranged staggered with the multiple partition plates. The two sides of the top of the water distribution plate respectively abut against one side of the bottom of two adjacent partition plates. A water distribution groove is provided in the middle of the water distribution plate along its radial direction. The driving component is arranged on the reaction tower and is used to drive the water distribution plate and the rotating ring to swing reciprocally along the circumference of the rotating ring.

[0008] The effect is that driving the fixed plate and the water distribution plate to swing reciprocally in the circumferential direction with the rotating ring as the axis can change the water distribution position and direction of the water distribution groove, realize the uniform distribution of wastewater in the reactor, and improve the pollutant degradation effect.

[0009] A fixed plate is provided on the water distribution groove. An outlet groove communicating with the water distribution groove is provided in the middle of the fixed plate. Two guide plates are arranged on the top of the fixed plate on both sides of the outlet groove. The bottom of the guide plate is hinged to the top of the fixed plate. A connecting member is hinged between the sides of the two guide plates away from the rotating ring. The driving component drives the guide plate to swing with the hinge point between the guide plate and the fixed plate as the axis through the connecting member.

[0010] A scraping member is provided on the top of the partition plate and is arranged parallel to its radial direction. Connecting strips are connected between the two ends of the scraping member and the fixed plate on one of the water distribution plates. The scraping member abuts against the top of the partition plate. The cross-sections of the partition plate and the water distribution plate are both arc-shaped with the middle lower and both sides higher.

[0011] The effect is that when the water distribution groove on the water distribution plate swings to the edge of the partition plate, the water sprayed out from the water distribution groove can disperse the sludge, so that the sludge is redistributed in the sewage again. Thus, the surface of the water distribution device can be cleaned and maintained during the operation of the anaerobic reactor, and the stable operation of the equipment can be maintained.

[0012] The driving component includes a motor installed on the outer wall of the reaction tower and a gear installed on the output shaft of the motor. An annular rotating groove is provided on the inner wall of the reaction tower. An annular rotating plate is rotatably installed in the annular rotating groove. A toothed ring is installed on the outer ring wall of the annular rotating plate. The gear rotates through the tower wall of the reaction tower and is meshed with the toothed ring. The connecting member is a T-shaped rod. The two ends of its horizontal rod are respectively hinged to the two guide plates, and its vertical rod is fixedly connected to the annular rotating plate.

[0013] The effect is that it can drive the water distribution device to complete the water distribution work.

[0014] One side of the bottom of the reaction tower is provided with a water inlet pipe for allowing sewage to enter the interior of the reaction tower. Inside the reaction tower, there is a reflux pipe coaxial with the rotating ring and the fixed ring. The fixed ring is fixedly sleeved on the outer wall of the reflux pipe, and the rotating ring is rotatably sleeved on the outer wall of the reflux pipe.

[0015] The effect is that by setting the reflux pipe, the sewage can flow back to the water distribution area for re - water distribution, improving the sewage treatment effect.

[0016] On one side of the top of the partition plate, there is a sludge collection plate for collecting the sludge scraped off by the scraping member. The sludge collection plate is provided with a sludge flushing groove.

[0017] The scraping member includes a connecting shaft and a scraper installed on the outer wall along the axis direction of the connecting shaft. The connecting bar is provided with a hinge hole for installing the connecting shaft. The inner wall of the hinge hole is provided with a limiting sliding groove. The two ends of the connecting shaft are respectively rotatably sleeved in the hinge holes on the two connecting bars, and a limiting sliding block fixedly installed on the end wall of the connecting shaft is slidably sleeved in the limiting sliding groove.

[0018] The effect is that the sludge on the partition plate can be scraped to one side of the partition plate, which is more conducive to re - dispersing the sludge so that it is distributed into the sewage.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] It can drive the fixed plate and the water distribution plate to perform circumferential reciprocating swings with the rotating ring as the axis, thereby changing the water distribution position and direction of the water distribution tank, realizing the uniform distribution of wastewater in the reactor, improving the pollutant degradation effect, and at the same time being able to disperse the sludge accumulated in the water distribution area so that the sludge is redistributed in the sewage, thus being able to clean and maintain the surface of the water distribution device during the operation of the anaerobic reactor and maintaining the stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0022] Figure 1 is a schematic structural diagram of the sewage anaerobic reactor in the present invention;

[0023] Figure 2 is a schematic diagram of the water distribution device in the present invention;

[0024] Figure 3 is a schematic structural diagram of the water distribution device in the present invention;

[0025] Figure 4 is for the present invention Figure 3 a magnified structural diagram of part A in;

[0026] Figure 5 Schematic installation structure diagram of the water distribution plate in the present invention;

[0027] Figure 6 In the present invention Figure 5 Enlarged structure diagram at position B in;

[0028] Figure 7 Schematic installation structure diagram of the partition plate in the present invention;

[0029] Figure 8 Bottom-up partial structure diagram of the drive assembly in the present invention;

[0030] Figure 9 Partial structure diagram of the partition plate in the present invention;

[0031] Figure 10 Schematic connection structure diagram of the scraping member in the present invention.

[0032] In the figure: 1, reaction tower; 11, water inlet pipe; 12, reflux pipe; 13, annular rotating groove; 2, water distribution mechanism; 21, drive assembly; 211, gear; 22, annular rotating plate; 211, gear; 221, gear ring; 23, partition plate; 24, water distribution plate; 241, water distribution tank; 242, fixing plate; 243, flow guiding plate; 245, connecting member; 246, water outlet tank; 247, connecting strip; 2471, hinge hole; 2472, limit sliding groove; 248, scraping member; 2481, connecting shaft; 2482, scraper; 2483, limit sliding block; 25, rotating ring; 26, fixed ring; 27, sludge collecting plate; 271, sludge flushing groove. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 - 10 , the present invention provides the following technical solutions: A water distribution device for a sewage anaerobic reactor, including a reaction tower 1 and a water distribution mechanism 2 installed at the inner bottom of the reaction tower 1, and the water distribution mechanism 2 is used to evenly distribute wastewater in the reaction tower 1.

[0035] Refer to Figures 3 - 6As shown in the figure, the water distribution mechanism 2 includes a driving component 21, a partition plate 23, a water distribution plate 24, a rotating ring 25 and a fixed ring 26. The rotating ring 25 and the fixed ring 26 are coaxially arranged and the axis thereof coincides with the axis of the reaction tower 1. The rotating ring 25 is rotatably installed below the fixed ring 26. There are multiple partition plates 23 and water distribution plates 24, and both are sector plates. The multiple partition plates 23 are evenly distributed along the circumference of the fixed ring 26, and the multiple water distribution plates 24 are evenly distributed along the circumference of the rotating ring 25 and are arranged staggeredly with the multiple partition plates 23. The two sides of the top of the water distribution plate 24 are respectively in contact with one side of the bottom of two adjacent partition plates 23. A water distribution groove 241 is formed in the middle of the water distribution plate 24 along its radial direction. The driving component 21 is arranged on the reaction tower 1 and is used to drive the water distribution plate 24 and the rotating ring 25 to swing reciprocally along the circumference of the rotating ring 25.

[0036] The sewage is sprayed out through the water distribution groove 241 on the water distribution plate 24. At the same time, the driving component 21 drives the guide plate 243 to rotate around the hinge joint of the guide plate 243 and the fixed plate 242 through the connecting piece 245. When the guide plate 243 rotates to the maximum extent, it drives the fixed plate 242 and the water distribution plate 24 to swing reciprocally in the circumferential direction around the rotating ring 25 under the action of the connecting piece 245, so as to change the water distribution position and direction of the water distribution groove 241, realize the uniform distribution of the wastewater in the reactor, and improve the pollutant degradation effect.

[0037] Reference Figure 4 and Figure 6 As shown in the figure, a fixed plate 242 is arranged on the water distribution groove 241. An outlet groove 246 communicating with the water distribution groove 241 is formed in the middle of the fixed plate 242. Two guide plates 243 located on both sides of the outlet groove 246 are arranged on the top of the fixed plate 242. The bottom of the guide plate 243 is hinged to the top of the fixed plate 242. A connecting piece 245 is hinged between the sides of the two guide plates 243 away from the rotating ring 25. The driving component 21 drives the guide plate 243 to swing around the hinge joint of the guide plate 243 and the fixed plate 242 through the connecting piece 245.

[0038] Reference Figure 3 and Figure 4 As shown in the figure, a scraping member 248 is arranged on the top of the partition plate 23 and is arranged parallel to its radial direction. Connecting bars 247 are connected between the two ends of the scraping member 248 and the fixed plate 242 on one of the water distribution plates 24. The scraping member 248 is in contact with the top of the partition plate 23.

[0039] The cross-sections of the partition plate 23 and the water distribution plate 24 are both arc-shaped with the middle lower and both sides higher.

[0040] As the water distribution plate 24 and the fixed plate 242 swing left and right in the circumferential direction of the rotating ring 25, at this time, the fixed plate 242 drives the scraping member 248 to reciprocally swing along the circumferential direction of the fixed ring 26 on the upper surface of the partition plate 23 through the connecting bar 247, scraping the sludge on the partition plate 23 to its edge. When the water distribution tank 241 on the water distribution plate 24 swings to the edge of the partition plate 23, the water sprayed from the water distribution tank 241 can disperse the sludge, enabling the sludge to be redistributed in the sewage again. Thus, during the operation of the anaerobic reactor, the surface of the water distribution device can be cleaned and maintained, and the stable operation of the equipment can be maintained.

[0041] Reference Figure 2 and Figure 8 As shown, the driving assembly 21 includes a motor installed on the outer wall of the reaction tower 1 and a gear 211 installed on the output shaft of the motor. An annular rotating groove 13 is formed in the inner wall of the reaction tower 1. An annular rotating plate 22 is rotatably installed in the annular rotating groove 13. A toothed ring 221 is installed on the outer ring wall of the annular rotating plate 22. The gear 211 rotates through the tower wall of the reaction tower 1 and is meshed with the toothed ring 221. The connecting member 245 is a T-shaped rod, and the two ends of its horizontal rod are respectively hinged to the two flow guiding plates 243, and its vertical rod is fixedly connected to the annular rotating plate 22.

[0042] Reference Figure 1 and Figure 2 As shown, a water inlet pipe 11 is provided on one side of the bottom of the reaction tower 1 for allowing sewage to enter the interior of the reaction tower 1. A return pipe 12 coaxial with the rotating ring 25 and the fixed ring 26 is provided inside the reaction tower 1. The fixed ring 26 is fixedly sleeved on the outer wall of the return pipe 12, and the rotating ring 25 is rotatably sleeved on the outer wall of the return pipe 12.

[0043] Reference Figure 9 and Figure 10 As shown, a sludge collecting plate 27 for collecting the sludge scraped off by the scraping member 248 is installed on one side of the top of the partition plate 23. A sludge flushing groove 271 through which the water sprayed from the water distribution tank 241 passes to flush the sludge at the sludge collecting plate 27 is formed on the sludge collecting plate 27.

[0044] The scraping member 248 includes a connecting shaft 2481 and a scraper 2482 installed on its outer wall along the axial direction of the connecting shaft 2481. A hinged hole 2471 for installing the connecting shaft 2481 is formed on the connecting bar 247. A limiting sliding groove 2472 is formed on the inner wall of the hinged hole 2471. The two ends of the connecting shaft 2481 are respectively rotatably sleeved in the hinged holes 2471 on the two connecting bars 247, and a limiting sliding block 2483 slidably sleeved in the limiting sliding groove 2472 is fixedly installed on the end wall of the connecting shaft 2481.

[0045] When the connecting bar 247 drives the scraping member 248 to move towards the mud collecting plate 27, at this time, under the action of its own gravity, the scraping blade 2482 is vertically downward and the limit slider 2483 is located at one end of the limit sliding groove 2472. When the scraping member 248 moves towards the mud collecting plate 27, the scraping blade 2482 cannot drive the connecting shaft 2481 to rotate, so that the scraping blade 2482 scrapes the sludge on the partition plate 23 towards the mud collecting plate 27. When the connecting bar 247 drives the scraping member 248 away from the mud collecting plate 27, at this time, the scraping blade 2482 drives the connecting shaft 2481 to rotate in the reverse direction, so that the limit slider 2483 slides towards the other end of the limit sliding groove 2472, so that when the scraping blade 2482 moves away from the mud collecting plate 27, it cannot scrape the sludge.

[0046] The implementation principle of the embodiment of the present invention is as follows: When the anaerobic reactor works, sewage is discharged from the water inlet pipe 11 into the bottom of the reaction tower 1 and sprayed out through the water distribution grooves 241 on the water distribution plate 24. At the same time, the driving assembly 21 is started, and it drives the annular rotating plate 22 to swing back and forth along the circumference of the annular rotating plate 22 through the meshing connection of the gear 211 and the gear ring 221. As the annular rotating plate 22 swings, it drives the guide plate 243 to rotate around the hinge joint of the guide plate 243 and the fixing plate 242 through the connecting member 245. When the guide plate 243 rotates to the maximum limit, it drives the fixing plate 242 and the water distribution plate 24 to swing circumferentially around the rotating ring 25 under the action of the connecting member 245, so as to be able to change the water distribution position and water distribution direction of the water distribution grooves 241, realize the uniform distribution of wastewater in the reactor, and improve the pollutant degradation effect.

[0047] At the same time, as the water distribution plate 24 and the fixing plate 242 swing left and right in the circumferential direction of the rotating ring 25, at this time, the fixing plate 242 drives the scraping member 248 to swing back and forth along the circumference of the fixing ring 26 on the upper surface of the partition plate 23 through the connecting bar 247, scraping the sludge on the partition plate 23 to its edge, so that when the water distribution grooves 241 on the water distribution plate 24 swing to the edge of the partition plate 23, the water sprayed out by the water distribution grooves 241 can disperse the sludge, so that the sludge is redistributed in the sewage again, so as to be able to clean and maintain the surface of the water distribution device during the operation of the anaerobic reactor and maintain the stable operation of the equipment.

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A water distribution device for a sewage anaerobic reactor, comprising a reaction tower (1) and a water distribution mechanism (2) installed at the bottom of the reaction tower (1), the water distribution mechanism (2) being used to evenly distribute wastewater in the reaction tower (1), characterized in that: The water distribution mechanism (2) comprises a driving assembly (21), a baffle (23), a water distribution plate (24), a rotating ring (25) and a fixed ring (26); the rotating ring (25) and the fixed ring (26) are coaxially arranged and their axes coincide with the axis of the reaction tower (1); the rotating ring (25) is rotatably mounted below the fixed ring (26); the baffle (23) and the water distribution plate (24) both have a plurality of fan-shaped plates; the plurality of baffles (23) are evenly distributed along the circumference of the fixed ring (26); and the plurality of baffles (23) are arranged in a circular manner. The water distribution plates (24) are evenly distributed along the circumference of the rotating ring (25) and are arranged in a staggered manner with the plurality of partitions (23); the top sides of the water distribution plates (24) respectively contact the bottom sides of two adjacent partitions (23); the middle of the water distribution plates (24) is provided with water distribution grooves (241) arranged along the radial direction thereof; the driving assembly (21) is arranged on the reaction tower (1) and is used to drive the water distribution plates (24) and the rotating ring (25) to reciprocate and swing along the circumference of the rotating ring (25); A fixed plate (242) is provided on the water distribution trough (241); a water outlet trough (246) in communication with the water distribution trough (241) is provided in the middle of the fixed plate (242); two guide plates (243) located on both sides of the water outlet trough (246) are provided on the top of the fixed plate (242); the bottom of the guide plate (243) is hinged to the top of the fixed plate (242); a connecting piece (245) is hinged between the two guide plates (243) at one side away from the rotating ring (25); and the driving component (21) drives the guide plate (243) to swing with the hinge between the guide plate (243) and the fixed plate (242) as the axis via the connecting piece (245); A scraper (248) is provided on the top of the partition (23) and is arranged radially parallel to the partition. Connecting strips (247) are connected between the two ends of the scraper (248) and a fixed plate (242) on one of the water distribution plates (24). The scraper (248) is in contact with the top of the partition (23). The driving assembly (21) comprises a motor mounted on the outer wall of the reaction tower (1) and a gear (211) mounted on the output shaft of the motor; the inner wall of the reaction tower (1) is provided with an annular rotating groove (13); an annular rotating plate (22) is rotatably mounted in the annular rotating groove (13); a gear ring (221) is mounted on the outer ring wall of the annular rotating plate (22); the gear (211) rotates through the tower wall of the reaction tower (1) and then meshes with the gear ring (221); the connecting member (245) is a T-shaped rod, the two ends of the horizontal rod of which are respectively hinged to the two guide plates (243), and the vertical rod of which is fixedly connected to the annular rotating plate (22); A mud collecting plate (27) for collecting mud scraped off by the scraping member (248) is installed on one side of the top of the partition plate (23), and a mud flushing groove (271) is provided on the mud collecting plate (27); The scraper (248) comprises a connecting shaft (2481) and a scraper (2482) mounted on the outer wall of the connecting shaft (2481) along the axial direction of the connecting shaft (2481); a hinge hole (2471) for mounting the connecting shaft (2481) is provided on the connecting bar (247); a limit slide groove (2472) is provided on the inner wall of the hinge hole (2471); two ends of the connecting shaft (2481) are rotatably sleeved in the hinge holes (2471) on the two connecting bars (247); and a limit slide block (2483) is fixedly mounted on the end wall of the connecting shaft (2481) and is slidably sleeved in the limit slide groove (2472); The mud collecting plate (27) is provided with a mud flushing groove (271) through which water sprayed from the water distribution groove (241) passes to flush the mud on the mud collecting plate (27).

2. The water distribution device of the sewage anaerobic reactor according to claim 1, characterized in that: The cross-sections of the partition plate (23) and the water distribution plate (24) are both arc-shaped with a lower middle and higher sides.

3. The water distribution device of the sewage anaerobic reactor according to claim 1, characterized in that: A water inlet pipe (11) is provided on one side of the bottom of the reaction tower (1) for allowing sewage to enter the interior of the reaction tower (1). A return pipe (12) coaxial with a rotating ring (25) and a fixed ring (26) is provided inside the reaction tower (1). The fixed ring (26) is fixedly sleeved on the outer wall of the return pipe (12), and the rotating ring (25) is rotatably sleeved on the outer wall of the return pipe (12).

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