High-efficiency sludge dewatering device for sewage treatment

Abstract

The utility model discloses a sludge dewatering device for sewage treatment with high efficiency, which comprises a dewatering barrel, the bottom surface of the inner cavity of the dewatering barrel is rotatably connected with a filter barrel, the middle part of the bottom surface of the filter barrel is fixedly connected with a driving rod, the inner side of the driving rod is rotatably sleeved with a stirring rod, and the stirring rod is fixedly connected with the inner cavity of the dewatering barrel. The top end of the stirring rod penetrates through the filtering barrel and extends into the filtering barrel, a plurality of stirring strips are fixedly connected to the surface of the stirring rod, and a first bevel gear is fixedly connected to the outer surface of the driving rod. According to the structure, the dewatering barrel, the filtering barrel and the stirring strip are arranged, so that the driving bevel gear drives the first bevel gear and the second bevel gear to rotate reversely, and the filtering barrel and the stirring strip are driven to synchronously rotate reversely while the first bevel gear and the second bevel gear rotate reversely; the filtering barrel is in continuous contact with different types of sludge through the stirring strips while performing centrifugal filtration on the sludge, so that the filtering effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering technology, specifically to a high-efficiency sludge dewatering device for wastewater treatment. Background Technology

[0002] With the acceleration of urbanization and industrialization, the number of sewage treatment plants is constantly increasing, and the amount of sludge produced is also increasing. This sludge contains harmful substances such as bacteria, as well as a high content of organic matter. If not properly treated, it will cause serious pollution to the soil, water sources and air. Therefore, it is crucial to dewater the sludge.

[0003] Current high-efficiency sludge dewatering devices for wastewater treatment typically work by placing sludge into a filter cloth and then pressurizing the sludge and filter cloth to filter out the water from the sludge. However, since the amount of contact between the sludge and the filter cloth is fixed, this results in a long filtration time and low filtration efficiency. Utility Model Content

[0004] This invention provides a highly efficient sludge dewatering device for wastewater treatment, which can agitate the sludge by setting agitating bars, thereby increasing the contact between the sludge and the filter barrel and improving the filtration effect.

[0005] To achieve the above objectives, a high-efficiency sludge dewatering device for wastewater treatment is provided, comprising a dewatering tank, a filter tank rotatably connected to the bottom surface of the inner cavity of the dewatering tank, a drive rod fixedly connected to the center of the bottom surface of the filter tank, a stirring rod rotatably sleeved on the inner side of the drive rod, the top end of the stirring rod penetrating through the filter tank and extending into the interior of the filter tank, a plurality of stirring strips fixedly connected to the surface of the stirring rod, a first bevel gear fixedly connected to the outer surface of the drive rod, the first bevel gear meshing with a drive bevel gear, a second bevel gear meshing with the side of the drive bevel gear away from the first bevel gear, the bottom end of the stirring rod passing through the second bevel gear, and the second bevel gear fixedly connected to the outer surface of the stirring rod. Sludge is placed into the filter tank from above, and the drive bevel gear is rotated, thereby driving the first and second bevel gears to rotate in opposite directions. This causes the filter tank to rotate, filtering the sludge, while the stirring strips rotate in the opposite direction to agitate the sludge, increasing the contact area between the sludge and the filter tank and improving the filtration effect.

[0006] According to the aforementioned high-efficiency sludge dewatering device for wastewater treatment, a circular groove is formed on the bottom surface of the dewatering tank, and a limiting plate is fixedly connected to the bottom surface of the filter tank. The inner surface of the circular groove is rotatably connected to the surface of the limiting plate. Holes are formed on the surfaces of the filter tank and the limiting plate, and a valve is fixedly installed on the side of the limiting plate near the hole, with the hole communicating with the valve. By setting the limiting plate to contact the circular groove, the filter tank is limited, preventing it from deviating from its position during sludge filtration.

[0007] According to the aforementioned high-efficiency sludge dewatering device for wastewater treatment, a mounting shell is rotatably connected to the bottom surface of the limiting plate, a mounting block is fixedly connected to the inner bottom surface of the mounting shell, a motor is fixedly mounted on the upper surface of the mounting block, and the output end of the motor is fixedly connected to a drive bevel gear. The drive bevel gear is protected by the mounting shell.

[0008] According to the aforementioned high-efficiency sludge dewatering device for wastewater treatment, a fixed column is fixedly connected to the bottom surface of the mounting shell, and a base plate is fixedly connected to the bottom end of the fixed column. A limiting ring is fixedly connected to the bottom surface inside the mounting shell, and the inner side of the limiting ring contacts the lower surface of the agitator rod. By setting the limiting ring, the agitator rod is limited, making the agitator rod more stable during rotation.

[0009] According to the aforementioned high-efficiency sludge dewatering device for wastewater treatment, a mounting plate is fixedly sleeved on the outer surface of the dewatering tank, and a plurality of support columns are fixedly connected to the lower surface of the mounting plate. The bottom ends of the support columns are fixedly connected to the base plate. By setting up support columns, the support area for the dewatering tank is increased, resulting in more stable support.

[0010] According to the aforementioned high-efficiency sludge dewatering device for wastewater treatment, the bottom surface of the dewatering tank is provided with several evenly distributed drain outlets. By providing drain outlets, the filtered wastewater is prevented from accumulating inside the dewatering tank.

[0011] According to the aforementioned high-efficiency sludge dewatering device for wastewater treatment, a cross plate is fixedly connected to the surface of the stirring rod, and several cross plates are provided. Four scrapers are evenly distributed inside the filter barrel, and one end of each cross plate near the filter barrel is fixedly connected to a scraper. The scraper contacts the inner surface of the filter barrel. By using scrapers, the filter barrel is prevented from becoming clogged due to prolonged adhesion of impurities during filtration.

[0012] According to the aforementioned high-efficiency sludge dewatering device for wastewater treatment, a cover plate is hinged to the top of the dewatering tank, and the diameter of the dewatering tank and the cover plate are the same. By making the diameter of the cover plate the same as that of the dewatering tank, the cover plate can fit more snugly when closing the dewatering tank.

[0013] The beneficial effects of this utility model are as follows: by setting up a dewatering tank, a filter tank, and an agitator, the drive bevel gear drives the first bevel gear and the second bevel gear to rotate in opposite directions. At the same time as the first bevel gear and the second bevel gear rotate in opposite directions, the filter tank and the agitator also rotate in opposite directions synchronously. This allows the filter tank to continuously contact different types of sludge while centrifugally filtering the sludge through the agitator, thereby improving the filtration effect.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency sludge dewatering device for sewage treatment according to the present invention.

[0017] Figure 2 This is a schematic diagram of the internal cross-sectional structure of a high-efficiency sludge dewatering device for sewage treatment according to the present invention;

[0018] Figure 3 This is a schematic diagram of the relationship between the outlet and the dewatering tank of a high-efficiency sludge dewatering device for sewage treatment according to this utility model.

[0019] Figure 4 This is a schematic diagram of the overall structure of the filter barrel of a high-efficiency sludge dewatering device for sewage treatment according to this utility model;

[0020] Figure 5 This is a schematic diagram of the overall structure of the mounting plate of a high-efficiency sludge dewatering device for sewage treatment according to this utility model.

[0021] Legend:

[0022] 1. Dehydration tank; 2. Filter tank; 3. Limiting plate; 4. Mounting shell; 5. Drive rod; 6. Agitator rod; 7. First bevel gear; 8. Second bevel gear; 9. Drive bevel gear; 10. Limiting ring; 11. Agitator bar; 12. Cross plate; 13. Scraper; 14. Drain outlet; 15. Valve; 16. Cover plate; 17. Mounting plate; 18. Mounting block; 19. Support column; 20. Base plate; 21. Fixing column. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figures 1 to 5 This utility model discloses a high-efficiency sludge dewatering device for sewage treatment, comprising a dewatering tank 1, a filter tank 2 rotatably connected to the bottom surface of the inner cavity of the dewatering tank 1, a drive rod 5 fixedly connected to the middle of the bottom surface of the filter tank 2, an agitator 6 rotatably sleeved on the inner side of the drive rod 5, the top end of the agitator 6 penetrating through the filter tank 2 and extending into the interior of the filter tank 2, a plurality of agitator strips 11 fixedly connected to the surface of the agitator 6, a first bevel gear 7 fixedly connected to the outer surface of the drive rod 5, a drive bevel gear 9 meshing with the first bevel gear 7, a second bevel gear 8 meshing with the side of the drive bevel gear 9 away from the first bevel gear 7, the bottom end of the agitator 6 passing through the second bevel gear 8, and the second bevel gear 8 fixedly connected to the outer surface of the agitator 6.

[0025] The bottom surface of the dehydration tank 1 has a circular groove. The bottom surface of the filter tank 2 is fixedly connected to the limiting plate 3. The inner surface of the circular groove is rotatably connected to the surface of the limiting plate 3. The surfaces of the filter tank 2 and the limiting plate 3 have holes. A valve 15 is fixedly installed on the side of the limiting plate 3 near the hole. The hole is connected to the valve 15. The contact surface between the limiting plate 3 and the circular groove is made smooth. The top of the dehydration tank 1 is hinged to a cover plate 16. The diameter of the dehydration tank 1 and the cover plate 16 are the same. The bottom surface of the dehydration tank 1 has a drain outlet 14. The drain outlet 14 is set in several and evenly distributed.

[0026] The bottom surface of the limiting plate 3 is rotatably connected to the mounting shell 4, the inner bottom surface of the mounting shell 4 is fixedly connected to the mounting block 18, the upper surface of the mounting block 18 is fixedly mounted with a motor, the output end of the motor is fixedly connected to the drive bevel gear 9, and the first bevel gear 7 and the second bevel gear 8 are both located inside the mounting shell 4.

[0027] A fixing post 21 is fixedly connected to the bottom surface of the mounting shell 4, and a base plate 20 is fixedly connected to the bottom end of the fixing post 21. A limiting ring 10 is fixedly connected to the bottom surface inside the mounting shell 4. The inner side of the limiting ring 10 is in contact with the lower surface of the stirring rod 6, and the contact surface between the limiting ring 10 and the stirring rod 6 is set to be smooth.

[0028] A mounting plate 17 is fixedly fitted onto the outer surface of the dehydration tank 1. Several support columns 19 are fixedly connected to the lower surface of the mounting plate 17. The bottom ends of the support columns 19 are fixedly connected to the bottom plate 20.

[0029] A cross plate 12 is fixedly connected to the surface of the stirring rod 6. Several cross plates 12 are provided. A scraper 13 is provided on the inner side of the filter barrel 2. Four scrapers 13 are provided and evenly distributed. The end of the cross plate 12 near the filter barrel 2 is fixedly connected to the scraper 13. The scraper 13 is in contact with the inner surface of the filter barrel 2.

[0030] Working principle: In use, first turn valve 15 in the forward direction, then close valve 15, and then open cover plate 16. Place the sludge into the filter bucket 2. After placement, close cover plate 16. Then turn on the motor to make the drive bevel gear 9 rotate. While the drive bevel gear 9 is rotating, it drives the first bevel gear 7 and the second bevel gear 8 to rotate in the opposite direction. At the same time, the rotation drives the filter bucket 2 and the agitator 6 through the drive rod 5 and the agitator 6 respectively. This allows the filter bucket 2 to centrifuge and filter the sludge while the agitator 6 drives the filter bucket 2 to centrifuge and filter the sludge. The stirring bar 11 agitates the sludge, increasing the contact area of ​​the filter barrel 2 and enhancing the filtration effect. While the stirring bar 11 agitates the sludge, the cross plate 12 drives the scraper 13 to scrape the inside of the filter barrel 2, preventing the sludge from sticking for a long time and clogging the filter holes of the filter barrel 2, thus reducing the filtration effect. The filtered wastewater will be thrown out of the filter barrel 2 into the dewatering barrel 1 and then discharged through the drain port 14. After filtration is completed, the valve 15 is turned in reverse to open the valve 15 and discharge the filtered sludge, thus completing the filtration.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sludge dewatering device for sewage treatment with high efficiency, characterized by, Including dehydration bucket (1), the inner chamber bottom surface of dehydration bucket (1) is rotatably connected with filter bucket (2), the bottom surface middle part of filter bucket (2) is fixedly connected with drive rod (5), the inside of drive rod (5) is rotatably sleeved with agitating rod (6), the top end of agitating rod (6) penetrates filter bucket (2) and extends to the inside of filter bucket (2), the surface of agitating rod (6) is fixedly connected with several agitating bars (11), the outer surface of drive rod (5) is fixedly connected with first bevel gear (7), first bevel gear (7) is meshingly connected with drive bevel gear (9), the side away from first bevel gear (7) of drive bevel gear (9) is meshingly connected with second bevel gear (8), the bottom end of agitating rod (6) penetrates second bevel gear (8), the outer surface of second bevel gear (8) is fixedly connected with agitating rod (6).

2. The sludge dewatering device for high efficiency sewage treatment according to claim 1, characterized by The bottom surface of the dehydration bucket (1) is provided with a circular groove, the bottom surface of the filter bucket (2) is fixedly connected with a limiting disc (3), the inner surface of the circular groove is rotatably connected with the surface of the limiting disc (3), the surface of the filter bucket (2) and the limiting disc (3) is provided with a hole, the side close to the hole of the limiting disc (3) is fixedly installed with a valve (15), the hole is in communication with the valve (15).

3. The sludge dewatering device for high efficiency sewage treatment according to claim 2, characterized by The bottom surface of the limiting disc (3) is rotatably connected with a mounting shell (4), the inner bottom surface of the mounting shell (4) is fixedly connected with a mounting block (18), the upper surface of the mounting block (18) is fixedly installed with a motor, the output end of the motor is fixedly connected with the drive bevel gear (9).

4. The sludge dewatering device for high efficiency sewage treatment according to claim 3, characterized by The bottom surface of the mounting shell (4) is fixedly connected with a fixed column (21), the bottom end of the fixed column (21) is fixedly connected with a bottom plate (20), the inner bottom surface of the mounting shell (4) is fixedly connected with a limiting ring (10), the inner side of the limiting ring (10) is in contact with the lower surface of the agitating rod (6).

5. The sludge dewatering device for high efficiency sewage treatment according to claim 4, characterized by The outer surface of the dehydration bucket (1) is fixedly sleeved with a placing plate (17), the lower surface of the placing plate (17) is fixedly connected with a plurality of supporting columns (19), the bottom end of the supporting column (19) is fixedly connected with the bottom plate (20).

6. The sludge dewatering device for high efficiency sewage treatment according to claim 1, characterized by The bottom surface of the dehydration bucket (1) is provided with a water outlet (14), the water outlet (14) is provided with a plurality of and is evenly distributed.

7. The sludge dewatering device for high efficiency sewage treatment according to claim 1, characterized by The surface of the agitating rod (6) is fixedly connected with a cross plate (12), the cross plate (12) is provided with a plurality of, the inner side of the filter bucket (2) is provided with a scraper (13), the scraper (13) is provided with four and is evenly distributed, the end close to the filter bucket (2) of the cross plate (12) is fixedly connected with the scraper (13), the scraper (13) is in contact with the inner surface of the filter bucket (2).

8. The sludge dewatering device for high efficiency sewage treatment according to claim 1, characterized by The top of the dehydration bucket (1) is hingedly connected with a cover plate (16), the caliber size of the dehydration bucket (1) and the cover plate (16) is consistent.

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