Rotary disc filter sewage discharge structure in sewage treatment system

Abstract

The utility model relates to sewage treatment technical field, concretely is a sewage treatment system in disc filter pool blowdown structure, including treatment filter pool, disc filter mechanism, flush mechanism and mud scraping mechanism, the disc filter mechanism is provided in the treatment filter pool, be provided with flush mechanism on the treatment filter pool, the top baffle is evenly arranged in the top of treatment filter pool, the bottom of treatment filter pool is provided with mud scraping mechanism, this sewage treatment system in disc filter pool blowdown structure, through the support plate of rotation connection on the side water pipe to fixed adjustment electric cylinder and adjustment motor, simultaneously the side water pipe connection rotating shell and flush spray head constitutes the water spraying structure of double shaft operation, can adjust the flush angle of flush spray head, effectively removes the sticky mud and dirt, guarantees the blowdown effect, through the conical pool bottom of setting at the bottom of treatment filter pool forms the blowdown slope of bottom, cooperates mud scraping support and can avoid mud and dirt sticking, avoids mud and dirt accumulation in the bottom while high blowdown efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a rotary filter discharge structure in a wastewater treatment system. Background Technology

[0002] Rotary disc filters are a type of high-efficiency, compact mechanical filtration equipment widely used in the deep filtration stage of municipal sewage and industrial wastewater treatment. They are mainly used to remove suspended solids and some colloidal substances. The entire treatment process consists of multiple vertically installed fan-shaped filter plates, the surface of which is covered with a microporous filter screen. The filter discs are slowly rotated by a central rotating shaft, while sewage enters from the outside and the filtered clean water is discharged from the central collection pipe, thus achieving the filtration effect. Rotary disc filters used for wastewater treatment require frequent cleaning of the attached sludge. To address the wastewater discharge problem of rotary disc filters, Chinese patent publication number CN221155648U proposes a wastewater treatment rotary disc filter, including a water tank and a partition. The partition is installed on the inner wall of the water tank, and an overflow port is provided at the top of the partition. It also includes a drive device, a cleaning device, a hollow shaft, filter screens, an inclined plate, and an inlet pipe. The left end of the hollow shaft is rotatably installed on the outer wall of the partition, and the right end is rotatably installed on the inner wall of the water tank. The drive device is installed on the water tank to drive the hollow shaft to rotate. The cleaning device is installed on the side of the water tank and communicates with the hollow shaft. The cleaning device is used to clean multiple sets of filter screens. The inclined plate is installed in the water tank on the left side of the partition, and the inlet pipe is connected to the left end of the water tank. The aforementioned utility model uses the water pipes and branch pipes arranged above as the outer flushing structure of the filter screen box. It can only adjust the flushing position by coordinating with the rotation of the filter screen box, and the spray angle is difficult to adjust, making it difficult to effectively remove sticky mud and dirt, thus affecting the sewage discharge effect. At the same time, the mud and dirt after flushing will fall onto the guide plate, and it can only be discharged by relying on the inclined guide plate. This kind of drainage sewage discharge efficiency is low and it is easy to cause mud and dirt to accumulate at the bottom. Therefore, we propose a rotary disc filter sewage discharge structure in a sewage treatment system. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a rotary disc filter discharge structure in a wastewater treatment system, comprising a treatment filter, a rotary disc filtration mechanism, a flushing mechanism, a top baffle, and a sludge scraping mechanism. The treatment filter is equipped with a rotary disc filtration mechanism, the treatment filter is equipped with a flushing mechanism, the top baffle is evenly distributed on the top of the treatment filter, and the bottom of the treatment filter is equipped with a sludge scraping mechanism.

[0004] In some embodiments, the rotary filter mechanism consists of a central branch pipe and a filter box. The central branch pipe is rotatably connected to the treatment filter tank, and the filter boxes are evenly arranged on the central branch pipe. The central branch pipe and the filter boxes are in communication with each other.

[0005] In some embodiments, the flushing mechanism comprises an adjusting motor, a flushing water pipe, a side water pipe, a side slot, a rotating shell, a flushing nozzle, an adjusting plate, an arc-shaped slot, a support plate, and an adjusting electric cylinder. The flushing water pipe is fixed to the treatment filter tank by a support base.

[0006] In some embodiments, a side water pipe is fixedly connected to the bottom of the flushing water pipe, the side water pipe is sleeved in a through hole opened in the top partition, and the side water pipe is rotatably connected to the bottom of the support plate.

[0007] In some embodiments, an adjusting motor is fixedly installed on one side of the top of the support plate, the output end of the adjusting motor is connected to the side water pipe through a gear set, and an adjusting electric cylinder is fixedly connected to the top of the support plate.

[0008] In some embodiments, the output end of the regulating electric cylinder is fixedly connected to an regulating plate, the regulating plate is evenly provided with arc-shaped slots, a flushing nozzle is slidably connected in the arc-shaped slots, the flushing nozzle is rotatably connected to a rotating shell, the rotating shell is rotatably connected to a side water pipe, and the inner cavity of the rotating shell is connected to the side slots opened on the side water pipe.

[0009] In some embodiments, the sludge scraping mechanism consists of a conical tank bottom, a sludge outlet, a sludge scraping bracket, and a transmission ring. The conical tank bottom is located at the bottom of the treatment filter tank, and a sludge outlet is provided at the center of the bottom of the conical tank bottom. A sludge scraping bracket is rotatably connected to the conical tank bottom, and a transmission ring is fixedly connected to the sludge scraping bracket.

[0010] This utility model has at least the following beneficial effects: 1. This utility model uses a support plate rotatably connected to the side water pipe to fix the adjusting electric cylinder and the adjusting motor. The output end of the adjusting motor is connected to the side water pipe via a gear set. The rotation of the output end of the adjusting motor can drive the entire support plate to rotate around the axis of the side water pipe through the gear set. The side water pipe at the bottom of the flushing water pipe connects to the rotating shell and the flushing nozzle to form a dual-axis water spraying structure. The inner cavity of the side water pipe is connected to the flushing nozzle and is also connected to the flushing water pipe through a side slot. The flushing water enters the side water pipe from the flushing water pipe and passes through a uniformly distributed... The water enters the rotating housing through the side slot, and finally impacts the filter box through the flushing nozzles. In conjunction with the central branch pipe, the filter box rotates to clean the entire filter box mesh. Adjusting the motor's rotation can rotate the adjustment plate, which in turn limits the flushing nozzles through the arc-shaped slots, causing the entire flushing nozzle and rotating housing to rotate on the side water pipe. At the same time, the adjustment cylinder moves the adjustment plate up and down, which can drive the flushing nozzles to rotate on the rotating housing through the arc-shaped slots. Adjusting the flushing angle of the entire row of flushing nozzles can effectively remove sticky mud and dirt, ensuring the sewage discharge effect.

[0011] 2. This utility model forms a bottom discharge slope by setting a conical bottom at the bottom of the treatment filter. The sludge cleaned by the flushing mechanism falls onto the conical bottom under gravity and slides along the conical slope towards the sludge outlet by its own weight. At the same time, the transmission ring on the sludge scraper is connected to an additional drive structure, which can drive the sludge scraper to rotate on the discharge slope, preventing sludge from sticking and achieving high discharge efficiency while preventing sludge from accumulating at the bottom. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the assembly structure of this utility model; Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a schematic diagram of the exploded structure of this utility model; Figure 5 for Figure 4 A magnified view of a portion of region B in the middle; Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model; Figure 7 This is a schematic diagram of the exploded structure of Embodiment 2 of this utility model; Figure 8 This is a schematic diagram showing the direction of rotation of the arc-shaped oblique scraper following the central support during cleaning in Embodiment 2 of this utility model.

[0013] In the diagram: 1-treatment filter tank; 2-rotary disc filter mechanism; 3-flushing mechanism; 4-top baffle; 5-sludge scraping mechanism; 21-central branch pipe; 22-filter box; 30-adjusting motor; 31-flushing water pipe; 32-side water pipe; 33-side slot; 34-rotating shell; 35-flushing nozzle; 36-adjusting plate; 37-arc-shaped slot; 38-support plate; 39-adjusting electric cylinder; 51-conical tank bottom; 52-sludge outlet; 53-sludge scraper bracket; 54-transmission ring; 101-central support; 102-arc-shaped inclined scraper. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1: Please see Figure 1-5 This utility model provides a technical solution: a rotary disc filter discharge structure in a sewage treatment system, including a treatment filter 1, a rotary disc filtration mechanism 2, a flushing mechanism 3, a top baffle 4, and a sludge scraping mechanism 5. The treatment filter 1 is provided with a rotary disc filtration mechanism 2, the treatment filter 1 is provided with a flushing mechanism 3, the top baffle 4 is evenly provided on the top of the treatment filter 1, and the bottom of the treatment filter 1 is provided with a sludge scraping mechanism 5. The treatment filter 1 serves as the water storage structure for the entire sewage treatment process and can support the rotary disc filtration mechanism 2. The sewage inside passes through the rotary disc filtration mechanism 2 and is discharged from the treatment filter 1, which can remove suspended solids and some colloidal substances. The rotary filter mechanism 2 consists of a central branch pipe 21 and a filter box 22. The central branch pipe 21 is rotatably connected to the treatment filter tank 1. The filter boxes 22 are evenly arranged on the central branch pipe 21. The central branch pipe 21 and the filter boxes 22 are interconnected. The central branch pipe 21 is connected to the transmission structure and can rotate on the treatment filter tank 1. During the rotation, the filter boxes 22 are rotated. During the sewage treatment process, one end of the central branch pipe 21 provides negative pressure so that water passes through the mesh of the filter box 22 and enters the central branch pipe 21 to achieve water separation. The flushing mechanism 3 consists of an adjusting motor 30, a flushing water pipe 31, a side water pipe 32, a side slot 33, a rotating housing 34, a flushing nozzle 35, an adjusting plate 36, an arc-shaped slot 37, a support plate 38, and an adjusting electric cylinder 39. The flushing water pipe 31 is fixed to the treatment filter 1 by a support base. The bottom of the flushing water pipe 31 is fixedly connected to the side water pipe 32, which is sleeved in a through hole opened on the top partition 4. The side water pipe 32 is rotatably connected to the bottom of the support plate 38. The adjusting motor 30 is fixedly installed on one side of the top of the support plate 38. The output end of the adjusting motor 30 is connected to the gear... The wheel assembly is meshed with the side water pipe 32, and an adjusting electric cylinder 39 is fixedly connected to the top of the support plate 38. An adjusting plate 36 is fixedly connected to the output end of the adjusting electric cylinder 39. The adjusting plate 36 has evenly spaced arc-shaped slots 37, and a flushing nozzle 35 is slidably connected in the arc-shaped slots 37. The flushing nozzle 35 is rotatably connected to a rotating housing 34, and the rotating housing 34 is rotatably connected to the side water pipe 32. The inner cavity of the rotating housing 34 is connected to the side slots 33 on the side water pipe 32. The adjusting electric cylinder 39 and the adjusting electric cylinder are fixed by rotating the support plate 38 connected to the side water pipe 32. The output end of the regulating motor 30 is connected to the side water pipe 32 via a gear set. The rotation of the output end of the regulating motor 30 can drive the entire support plate 38 to rotate around the axis of the side water pipe 32 through the meshing of the gear set. The side water pipe 32 at the bottom of the flushing water pipe 31 is connected to the rotating shell 34 and the flushing nozzle 35 to form a dual-axis water spray structure. The inner cavity of the side water pipe 32 is connected to the flushing nozzle 35 and is connected to the flushing water pipe 31 through the side slot 33. The flushing water enters the side water pipe 32 from the flushing water pipe 31 and then passes through the evenly spaced side slots 33 to enter the rotating shell. In step 34, the final step involves the flushing nozzles 35 impacting the filter box 22, which, in conjunction with the central branch pipe 21, drives the rotation of the filter box 22 to clean the entire mesh of the filter box 22. The rotation of the adjusting motor 30 can cause the adjusting plate 36 to rotate, which in turn limits the flushing nozzles 35 through the arc-shaped slot 37, causing the entire flushing nozzles 35 and the rotating shell 34 to rotate on the side water pipe 32. At the same time, the adjusting electric cylinder 39 drives the adjusting plate 36 to move up and down, which can drive the flushing nozzles 35 to rotate on the rotating shell 34 through the arc-shaped slot 37, thus adjusting the flushing angle of the entire row of flushing nozzles 35. The sludge scraping mechanism 5 consists of a conical tank bottom 51, a sludge outlet 52, a sludge scraping bracket 53, and a transmission ring 54. The conical tank bottom 51 is located at the bottom of the treatment filter tank 1, and the sludge outlet 52 is located at the center of the bottom of the conical tank bottom 51. The sludge scraping bracket 53 is rotatably connected to the conical tank bottom 51, and the transmission ring 54 is fixedly connected to the sludge scraping bracket 53. The conical tank bottom 51, located at the bottom of the treatment filter tank 1, forms a bottom drainage slope. The sludge cleaned by the flushing mechanism 3 falls onto the conical tank bottom 51 under the action of gravity and slides along the conical slope towards the sludge outlet 52 under its own gravity. At the same time, the transmission ring 54 on the sludge scraping bracket 53, after being connected to an additional drive structure, can drive the sludge scraping bracket 53 to rotate on the drainage slope, preventing sludge from sticking together and achieving high drainage efficiency while preventing sludge from accumulating at the bottom.

[0016] Example 2: Please see Figure 6-8 This utility model provides a technical solution: a rotary disc filter discharge structure in a sewage treatment system, including a treatment filter 1, a rotary disc filtration mechanism 2, a flushing mechanism 3, a top partition 4, and a sludge scraping mechanism 5. The treatment filter 1 is equipped with the rotary disc filtration mechanism 2, the treatment filter 1 is equipped with the flushing mechanism 3, the top partition 4 is evenly distributed on the top of the treatment filter 1, and the bottom of the treatment filter 1 is equipped with the sludge scraping mechanism 5. The sludge scraping bracket 53 and transmission ring 54 in the sludge scraping mechanism 5 of Embodiment 1 are replaced with a central support 101 and an arc-shaped inclined scraper 102. The arc-shaped inclined scraper 102 is evenly fixed on the central support 101 and adheres to the inner wall of the conical bottom 51. The sludge generated during sewage treatment adheres to the mesh opening of the filter box 22 and is then removed. After being cleaned by the flushing mechanism 3, the sludge falls into the conical bottom 51 at the bottom. Under the action of gravity, some of the sludge slides down the inclined side wall of the conical bottom 51 and finally slides out from the sludge outlet 52. The central support 101 and the arc-shaped inclined scraper 102 are connected to form a ring-shaped cleaning structure. The central support 101 is used to connect to the external power input. During the rotation of the central support 101, the arc-shaped inclined scraper 102 will rotate around the conical inner wall of the conical bottom 51. At the same time, the shape of the entire arc-shaped inclined scraper 102 is tilted in the direction of rotation of the entire cleaning. During the rotation, stress is generated on the sludge in the direction of the sludge outlet 52. Combined with its own rotation, it can promote the sludge attached to the conical bottom 51 to slide into the sludge outlet 52, which can better promote the sludge discharge of the entire structure.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary disc filter discharge structure in a wastewater treatment system, comprising a treatment filter (1), a rotary disc filtration mechanism (2), a flushing mechanism (3), a top baffle (4), and a sludge scraping mechanism (5), characterized in that: The treatment filter (1) is provided with a rotary filter mechanism (2), the treatment filter (1) is provided with a flushing mechanism (3), the top of the treatment filter (1) is uniformly provided with a top partition (4), and the bottom of the treatment filter (1) is provided with a sludge scraping mechanism (5).

2. The rotary disc filter discharge structure in the wastewater treatment system according to claim 1, characterized in that: The rotary filter mechanism (2) consists of a central branch pipe (21) and a filter box (22). The central branch pipe (21) is rotatably connected to the treatment filter (1). The filter box (22) is evenly arranged on the central branch pipe (21). The central branch pipe (21) and the filter box (22) are interconnected.

3. The rotary disc filter sludge discharge structure in the wastewater treatment system according to claim 1, characterized in that: The flushing mechanism (3) consists of an adjusting motor (30), a flushing water pipe (31), a side water pipe (32), a side slot (33), a rotating shell (34), a flushing nozzle (35), an adjusting plate (36), an arc-shaped slot (37), a support plate (38), and an adjusting electric cylinder (39). The flushing water pipe (31) is fixed on the treatment filter (1) by a support base.

4. The rotary disc filter sludge discharge structure in the wastewater treatment system according to claim 3, characterized in that: The bottom of the flushing water pipe (31) is fixedly connected to a side water pipe (32), which is sleeved in a through hole opened on the top partition (4) and is rotatably connected to the bottom of the support plate (38).

5. The rotary disc filter sludge discharge structure in the wastewater treatment system according to claim 4, characterized in that: An adjusting motor (30) is fixedly installed on one side of the top of the support plate (38). The output end of the adjusting motor (30) is connected to the side water pipe (32) through a gear set. An adjusting electric cylinder (39) is fixedly connected to the top of the support plate (38).

6. The rotary disc filter sludge discharge structure in the wastewater treatment system according to claim 5, characterized in that: An adjusting plate (36) is fixedly connected to the output end of the adjusting electric cylinder (39). An arc-shaped groove (37) is evenly opened on the adjusting plate (36). A flushing nozzle (35) is slidably connected in the arc-shaped groove (37). The flushing nozzle (35) is rotatably connected to the rotating shell (34). The rotating shell (34) is rotatably connected to the side water pipe (32). The inner cavity of the rotating shell (34) is connected to the side groove (33) opened on the side water pipe (32).

7. The rotary disc filter sludge discharge structure in the wastewater treatment system according to claim 1, characterized in that: The sludge scraping mechanism (5) consists of a conical bottom (51), a sludge outlet (52), a sludge scraping bracket (53), and a transmission ring (54). The conical bottom (51) is located at the bottom of the treatment filter (1). The sludge outlet (52) is located at the center of the bottom of the conical bottom (51). The sludge scraping bracket (53) is rotatably connected to the conical bottom (51). The transmission ring (54) is fixedly connected to the sludge scraping bracket (53).

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