Water distribution device of sewage anaerobic reactor

Abstract

The invention provides a water distribution device of a sewage anaerobic reactor, and belongs to the technical field of sewage treatment equipment.The water distribution device of the sewage anaerobic reactor comprises a reaction tower and a water distribution mechanism installed at the bottom in the reaction tower, and the water distribution mechanism is used for evenly distributing wastewater in the reaction tower; the water distribution mechanism comprises a driving assembly, partition plates, water distribution plates, a rotating ring and a fixed ring, the rotating ring and the fixed ring are coaxially arranged, the axis of the rotating ring and the axis of the fixed ring coincide with the axis of the reaction tower, the rotating ring is rotationally installed below the fixed ring, the partition plates and the water distribution plates are fan-shaped plates, and the partition plates are evenly distributed in the circumferential direction of the fixed ring; the water distribution plates are evenly distributed in the circumferential direction of the rotating ring and staggered with the partition plates, the two sides of the top of each water distribution plate abut against one side of the bottom of the corresponding two adjacent partition plates, and a water distribution groove is formed in the middle of each water distribution plate in the radial direction of the water distribution plate. The water distribution position and the water distribution direction of the water distribution tank can be changed, and uniform distribution of wastewater in the reactor is realized.

Description

Technical Field

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

[0002] The water distribution device of the sewage anaerobic reactor is an important component of the reactor. The water distribution device plays the role of distributing the incoming water, realizing hydraulic stirring and ensuring the uniform distribution of the incoming water in the sewage anaerobic reactor. At the same time, it promotes the rapid mixing of the incoming water 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, including an anaerobic tower, a cyclone water distributor is arranged at the inner bottom of the anaerobic tower, the cyclone water distributor includes a cone and a connecting pipe, a water inlet is provided at the top of the cone, the connecting pipe runs through the side wall of the anaerobic tower and is sealed and connected to the water inlet, a water collecting cavity is provided inside the cone, and multiple water distribution layers are arranged in the vertical direction inside the cone. It is used to solve the problem that it is difficult to adjust the water outlet speed to the optimal state, and the outflowing sewage and sludge cannot be fully mixed, resulting in low sewage treatment efficiency of the reactor.

[0004] Most of the existing water distribution devices use a cyclone water distributor to make the sewage flowing out of the water distribution port form a cyclone water distribution in the granular sludge area at the bottom of the reactor, so that the sewage can be mixed with the sludge, thereby improving the treatment efficiency of the anaerobic reactor.

[0005] The existing water distribution device has a fixed water distribution port, which makes the wastewater in the reactor unevenly distributed when the device distributes water. At the same time, impurities such as suspended matter 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 in the reactor is unevenly distributed when the device distributes water due to the fixed position of the water distribution port in the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water distribution device for a sewage anaerobic reactor, comprising a reaction tower and a water distribution mechanism installed at the bottom of the reaction tower, the water distribution mechanism is used to evenly distribute the wastewater in the reaction tower, the water distribution mechanism comprises a driving assembly, a partition, 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 partitions and water distribution plates and they are all fan-shaped plates, the multiple partitions 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 staggered with the multiple partitions, the top two sides of the water distribution plate are respectively in conflict with the bottom side of two adjacent partitions, the middle part of the water distribution plate is provided with a water distribution groove arranged along its radial direction, the driving assembly is arranged on the reaction tower, and is used to drive the water distribution plate and the rotating ring to swing back and forth along the circumference of the rotating ring.

[0008] The effect is that the fixed plate and the water distribution plate are driven to swing back and forth in the circumferential direction with the rotating ring as the axis, which can change the water distribution position and direction of the water distribution trough, achieve uniform distribution of wastewater in the reactor, and improve the pollutant degradation effect.

[0009] A fixed plate is provided on the water distribution trough, a water outlet trough connected to the water distribution trough is provided in the middle of the fixed plate, two guide plates located on both sides of the water outlet trough are provided on the top of the fixed plate, the bottom of the guide plate is hinged to the top of the fixed plate, a connecting piece is hinged between the two guide plates on the side away from the rotating ring, and the driving component drives the guide plate to swing with the hinge between the guide plate and the fixed plate as the axis through the connecting piece.

[0010] A scraper is provided on the top of the partition in parallel with the partition, and connecting strips are connected between the two ends of the scraper and the fixed plates on one of the water distribution plates. The scraper is in conflict with the top of the partition, and the cross-sections of the partition and the water distribution plate are both arc-shaped with a low middle and high sides.

[0011] The effect is that when the water distribution trough on the water distribution plate swings to the edge of the partition, the water sprayed from the water distribution trough can disperse the sludge, so that the sludge is redistributed in the sewage, thereby cleaning and maintaining the surface of the water distribution device during the operation of the anaerobic reactor to maintain the stability of the equipment operation.

[0012] The driving assembly 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 groove is opened on the inner wall of the reaction tower, and an annular rotating plate is rotatably installed in the annular groove. A gear 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 then meshes with the gear ring. The connecting piece is a T-shaped rod, and 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] A water inlet pipe is provided on one side of the bottom of the reaction tower for allowing sewage to enter the reaction tower. A reflux pipe coaxial with the rotating ring and the fixed ring is provided inside the reaction tower. 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 the return pipe is set up so that the sewage can flow back to the water distribution area for redistribution, thereby improving the sewage treatment effect.

[0016] A mud collecting plate for collecting the mud scraped off by the scraping member is installed on one side of the top of the partition, and a mud flushing groove is arranged on the mud collecting plate.

[0017] The scraper includes a connecting shaft and a scraper installed on the outer wall of the connecting shaft along the axial direction of the connecting shaft. A hinge hole for installing the connecting shaft is provided on the connecting strip, and a limiting slide groove is provided on the inner wall of the hinge hole. The two ends of the connecting shaft are respectively rotatably sleeved in the hinge holes on the two connecting strips, and a limiting slider is fixedly installed on the end wall of the connecting shaft and is slidably sleeved in the limiting slide groove.

[0018] The effect is that the sludge on the partition can be scraped off to one side of the partition, which is more conducive to flushing the sludge again and distributing it into the sewage.

[0019] Compared with the prior art, the present invention has the following beneficial effects: It can drive the fixed plate and the water distribution plate to swing back and forth in the circumferential direction with the rotating ring as the axis, thereby changing the water distribution position and direction of the water distribution trough, achieving uniform distribution of wastewater in the reactor, and improving the degradation effect of pollutants. At the same time, it can disperse the sludge accumulated in the water distribution area and make the sludge redistributed in the sewage, so that the surface of the water distribution device can be cleaned and maintained during the operation of the anaerobic reactor to maintain the stability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying 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 of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the structure of the sewage anaerobic reactor in the present invention; Figure 2 It is a schematic diagram of the water distribution device in the present invention; Figure 3 It is a structural schematic diagram of the water distribution device in the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 It is a schematic diagram of the installation structure of the water distribution plate in the present invention; Figure 6 For the present invention Figure 5A schematic diagram of the enlarged structure at B in the middle; Figure 7 It is a schematic diagram of the installation structure of the partition in the present invention; Figure 8 It is a schematic diagram of a top view of a local structure of a driving assembly in the present invention; Fig. 9 It is a schematic diagram of the local structure of the partition in the present invention; Fig.10 It is a schematic diagram of the connection structure of the scraping member in the present invention.

[0021] In the figure: 1, reaction tower; 11, water inlet pipe; 12, reflux pipe; 13, annular rotating groove; 2, water distribution mechanism; 21, driving assembly; 211, gear; 22, annular rotating plate; 211, gear; 221, gear ring; 23, partition; 24, water distribution plate; 241, water distribution trough; 242, fixed plate; 243, guide plate; 245, connecting piece; 246, water outlet trough; 247, connecting strip; 2471, hinge hole; 2472, limit slide groove; 248, scraper; 2481, connecting shaft; 2482, scraper; 2483, limit slider; 25, rotating ring; 26, fixed ring; 27, mud collecting plate; 271, mud flushing trough. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 10 The present invention provides the following technical solution: 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 is used to evenly distribute the wastewater in the reaction tower 1.

[0024] refer to Figure 3-Figure 6As shown, the water distribution mechanism 2 includes a driving assembly 21, a partition 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 coincides with the axis of the reaction tower 1. The rotating ring 25 is rotatably installed below the fixed ring 26. The partition 23 and the water distribution plate 24 both have multiple and all are fan-shaped plates. The multiple partitions 23 are evenly distributed along the circumference of the fixed ring 26. The multiple water distribution plates 24 are evenly distributed along the circumference of the rotating ring 25 and are staggered with the multiple partitions 23. The top two sides of the water distribution plate 24 respectively conflict with the bottom side of two adjacent partitions 23. The middle part of the water distribution plate 24 is provided with a water distribution groove 241 arranged along its radial direction. The driving assembly 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 back and forth along the circumference of the rotating ring 25.

[0025] The sewage is sprayed out through the water distribution trough 241 on the water distribution plate 24. At the same time, the driving component 21 drives the guide plate 243 to rotate with the hinge of the guide plate 243 and the fixed plate 242 as the axis through the connecting piece 245. When the guide plate 243 rotates to the maximum limit, the connecting piece 245 drives the fixed plate 242 and the water distribution plate 24 to perform circumferential reciprocating swings with the rotating ring 25 as the axis, thereby changing the water distribution position and direction of the water distribution trough 241, achieving uniform distribution of wastewater in the reactor, and improving the pollutant degradation effect.

[0026] refer to Figure 4 and Figure 6 As shown, a fixed plate 242 is provided on the water distribution trough 241, a water outlet trough 246 connected to the water distribution trough 241 is opened in the middle of the fixed plate 242, and 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, and a connecting piece 245 is hinged between the two guide plates 243 on the 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 through the connecting piece 245.

[0027] refer to Figure 3 and Figure 4 As shown, a scraper 248 is provided on the top of the partition 23 and is arranged radially parallel to the partition 23 . Connecting strips 247 are connected between the two ends of the scraper 248 and the fixed plates 242 on one of the water distribution plates 24 . The scraper 248 is in conflict with the top of the partition 23 .

[0028] 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.

[0029] As the water distribution plate 24 and the fixed plate 242 swing left and right in the circumferential direction of the rotating ring 25, the fixed plate 242 drives the scraper 248 to swing back and forth on the upper surface of the partition 23 along the circumference of the fixed ring 26 through the connecting strip 247, and scrapes the sludge on the partition 23 to its edge. When the water distribution trough 241 on the water distribution plate 24 swings to the edge of the partition 23, the water sprayed from the water distribution trough 241 can disperse the sludge and distribute the sludge in the sewage again, so that the surface of the water distribution device can be cleaned and maintained during the operation of the anaerobic reactor to maintain the stability of the equipment operation.

[0030] refer to 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. The inner wall of the reaction tower 1 is provided with an annular groove 13, and an annular rotating plate 22 is rotatably installed in the annular groove 13. A gear 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 then meshes with the gear 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 guide plates 243, and its vertical rod is fixedly connected to the annular rotating plate 22.

[0031] refer to 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 reflux 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 reflux pipe 12, and the rotating ring 25 is rotatably sleeved on the outer wall of the reflux pipe 12.

[0032] refer to Fig. 9 and Fig.10 As shown, a mud collecting plate 27 for collecting the mud scraped off by the scraper 248 is installed on one side of the top of the partition 23, and a mud flushing groove 271 is opened on the mud collecting plate 27 to allow water sprayed from the water distribution groove 241 to pass through and flush the mud on the mud collecting plate 27.

[0033] The scraper 248 includes a connecting shaft 2481 and a scraper 2482 installed on the outer wall of the connecting shaft 2481 along the axial direction of the connecting shaft 2481. A hinge hole 2471 for installing the connecting shaft 2481 is provided on the connecting strip 247. A limiting slide groove 2472 is provided on the inner wall of the hinge hole 2471. The two ends of the connecting shaft 2481 are respectively rotatably sleeved in the hinge holes 2471 on the two connecting strips 247. A limiting slider 2483 that is slidably sleeved in the limiting slide groove 2472 is fixedly installed on the end wall of the connecting shaft 2481.

[0034] When the connecting strip 247 drives the scraper 248 to move toward the mud collecting plate 27, the scraper 2482 moves vertically downward under the action of its own gravity and the limiting slider 2483 is located at one end of the limiting slide groove 2472, so that when the scraper 248 moves toward the mud collecting plate 27, the scraper 2482 cannot drive the connecting shaft 2481 to rotate, so that the scraper 2482 scrapes the sludge on the partition 23 toward the mud collecting plate 27. When the connecting strip 247 drives the scraper 248 away from the mud collecting plate 27, the scraper 2482 drives the connecting shaft 2481 to rotate in the opposite direction, so that the limiting slider 2483 slides to the other end of the limiting slide groove 2472, so that the scraper 2482 cannot scrape the sludge when it is away from the mud collecting plate 27.

[0035] The implementation principle of the embodiment of the present invention is: when the anaerobic reactor is working, the sewage is discharged into the bottom of the reaction tower 1 through the water inlet pipe 11, and sprayed out through the water distribution groove 241 on the water distribution plate 24, and at the same time, the driving component 21 is started, so that the meshing connection between the gear 211 and the ring gear 221 drives the annular rotating plate 22 to swing back and forth along the circumference of the annular rotating plate 22. As the annular rotating plate 22 swings, it drives the guide plate 243 to rotate around the hinge of the guide plate 243 and the fixed plate 242 through the connecting member 245. When the guide plate 243 rotates to the maximum limit, the connecting member 245 drives the fixed plate 242 and the water distribution plate 24 to swing back and forth around the rotating ring 25 as the axis, thereby changing the water distribution position and water distribution direction of the water distribution groove 241, achieving uniform distribution of wastewater in the reactor, and improving the pollutant degradation effect.

[0036] At the same time, as the water distribution plate 24 and the fixed plate 242 swing left and right in the circumferential direction of the rotating ring 25, the fixed plate 242 drives the scraper 248 to swing back and forth on the upper surface of the partition 23 along the circumference of the fixed ring 26 through the connecting strip 247, and scrapes the sludge on the partition 23 to its edge. When the water distribution trough 241 on the water distribution plate 24 swings to the edge of the partition 23, the water sprayed from the water distribution trough 241 can disperse the sludge and distribute the sludge in the sewage again, so that the surface of the water distribution device can be cleaned and maintained during the operation of the anaerobic reactor to maintain the stability of the equipment operation.

[0037] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary 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 an alternating 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; and the driving assembly (21) is arranged on the reaction tower (1) and is used for driving the water distribution plates (24) and the rotating ring (25) to reciprocate and swing along the circumference of the rotating ring (25).

2. The water distribution device of the sewage anaerobic reactor according to claim 1, characterized in that: The water distribution trough (241) is provided with a fixed plate (242), 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 assembly (21) drives the guide plate (243) to swing with the hinge between the guide plate (243) and the fixed plate (242) as the axis through the connecting piece (245).

3. The water distribution device of the sewage anaerobic reactor according to claim 2, characterized in that: 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).

4. The water distribution device of the sewage anaerobic reactor according to claim 3, 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.

5. The water distribution device of the sewage anaerobic reactor according to claim 1, characterized in that: 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; an annular rotating groove (13) is provided on the inner wall of the reaction tower (1); 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).

6. 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).

7. The water distribution device of the sewage anaerobic reactor according to claim 3, characterized in that: 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).

8. The water distribution device of the sewage anaerobic reactor according to claim 7, characterized in that: 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 limiting slide groove (2472) is provided on the inner wall of the hinge hole (2471); the two ends of the connecting shaft (2481) are rotatably sleeved in the hinge holes (2471) on the two connecting bars (247); and a limiting slide block (2483) is fixedly mounted on the end wall of the connecting shaft (2481) and is slidably sleeved in the limiting slide groove (2472).

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