Cement separation device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a cement separation device for sewage treatment, which comprises a sedimentation tank, a filter roller component is fixedly mounted at the top of the sedimentation tank through a mounting frame, and the filter roller component comprises a tapered roller and a filter screen which are obliquely arranged. The two ends of the conical roller are connected with the mounting frame through a first mounting plate and a second mounting plate correspondingly, the large end of the conical roller is sleeved with an annular gear, the first mounting plate is rotationally connected with a first gear meshed with the annular gear, a sludge groove is formed in the conical roller, and a sludge scraping plate making contact with the inner side of the filter screen is arranged on one side of the sludge groove. According to the cement separation device for sewage treatment, through the inclined conical roller structure, after sewage enters from the large head end, the liquid part is filtered out through the filter screen to the sedimentation tank, and solid sludge is lifted along the inclined inner wall along with rotation of the roller and is automatically discharged through the sludge conveying rod and the sewage discharging pipe, so that efficient collection and automatic conveying of the sludge are realized; the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a cement separation device for wastewater treatment. Background Technology

[0002] In the field of wastewater treatment, a combination of sedimentation tanks and filtration devices is commonly used. Sedimentation tanks are used to settle sludge in wastewater. However, when the sludge content of the wastewater is high, a large-volume sedimentation tank is required to meet the sludge settling requirements. Furthermore, the sludge deposition rate is too fast, which leads to an increased cleaning frequency, resulting in a large equipment footprint and a heavy burden of manual maintenance. The filtration components that accompany sedimentation tanks are mostly fixed screens or flat plate filters. Sludge particles easily clog the filter screen pores, reducing filtration efficiency and requiring frequent shutdowns for cleaning.

[0003] Therefore, a cement separation device for wastewater treatment is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cement separation device for wastewater treatment, which can solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a sedimentation tank, on the top of which a filter roller assembly is fixedly mounted via a mounting frame. The filter roller assembly includes an inclined conical roller and a filter screen. Both ends of the roller are connected to the mounting frame via a first mounting plate and a second mounting plate, respectively. A ring gear is fitted onto the outer side of the large end of the conical roller. A first gear meshing with the ring gear is rotatably connected to the first mounting plate. A first motor driving the first gear is located on the outer side of the first mounting plate. A sludge trough is provided inside the conical roller. A scraper plate that contacts the inner side of the filter screen is located on one side of the sludge trough. A sludge conveying rod penetrating the first mounting plate is located inside the sludge trough. A cleaning pipe connecting multiple nozzles is located on the outer side of the conical roller.

[0006] Preferably, the first mounting plate and the second mounting plate are rotatably connected to both ends of the conical roller via annular bearings, and the sewage inlet pipe passes through the first mounting plate and is inserted into the conical roller.

[0007] Preferably, the two ends of the sludge tank are fixedly connected to the first mounting plate and the second mounting plate, respectively, and a gap is formed between the side of the sludge tank away from the scraper and the filter screen for sludge to pass through.

[0008] Preferably, one end of the sludge conveying rod is connected to a second motor, and the other end extends into the sludge tank. The second mounting plate is fixedly connected to a drain pipe inserted into the sludge tank.

[0009] Preferably, the scraper is an elastic rubber plate, the scraper is arranged along the generatrix of the conical roller, and the distance between the scraper and the inner side of the filter screen is less than 2mm.

[0010] Preferably, the cleaning pipe is connected to a water pump via a pipeline, and the water pump is connected to the inside of the sedimentation tank via a pipeline.

[0011] Preferably, a sunshade is provided on the top of the sedimentation tank and above the filter roller assembly, and protective nets are provided on both sides of the sedimentation tank.

[0012] Compared with the prior art, the present invention provides a cement separation device for sewage treatment, which has the following beneficial effects:

[0013] 1. The filtration structure consists of an inclined conical roller and a surface filter screen. Wastewater enters from the larger end, and the liquid portion is filtered out through the filter screen to the sedimentation tank. The solid sludge is lifted along the inclined inner wall as the roller rotates, preventing the sludge from accumulating in the sedimentation tank and reducing the required volume. With the sludge trough inside the conical roller and the scraper blades close to the inner side of the filter screen, the lifted sludge enters the collection area through the gaps in the trough and is continuously scraped down into the sludge trough by the scraper blades. It is then automatically discharged through the sludge conveying rod and the sewage pipe, achieving efficient collection and automated transportation of sludge. Frequent manual cleaning is not required, significantly reducing maintenance costs.

[0014] 2. The cleaning pipe on the outside of the conical roller uses a water pump to draw water from the sedimentation tank to circulate and rinse the filter screen. The water flows through the filter screen pores to clean both the inside and outside, preventing sludge particles from clogging the filter screen pores. This ensures filtration efficiency while building a water resource recycling system and avoiding the waste of external water sources. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the conical roller of this utility model;

[0018] Figure 4 This is a schematic diagram of the sludge tank structure of this utility model.

[0019] In the diagram: 1. Sedimentation tank; 2. Mounting frame; 3. Filter roller assembly; 4. Conical roller; 5. Filter screen; 6. Mounting plate No. 1; 7. Mounting plate No. 2; 8. Ring gear; 9. Gear No. 1; 10. Motor No. 1; 11. Ring bearing; 12. Sewage inlet pipe; 13. Sludge tank; 14. Sludge scraper; 15. Sludge conveying rod; 16. Motor No. 2; 17. Sewage discharge pipe; 18. Cleaning pipe; 19. Sprayer head; 20. Water pump; 21. Sunshade; 22. Protective net. Detailed Implementation

[0020] 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. Example

[0021] Please see Figure 1 - Figure 4 A cement separation device for sewage treatment in this embodiment includes a sedimentation tank 1. A filter roller assembly 3 is fixedly installed on the top of the sedimentation tank 1 by a mounting frame 2. The filter roller assembly 3 includes an inclined conical roller 4 and a filter screen 5. Its two ends are connected to the mounting frame 2 by a first mounting plate 6 and a second mounting plate 7, respectively. A ring gear 8 is sleeved on the outer side of the large end of the conical roller 4. A first gear 9 that meshes with the ring gear 8 is rotatably connected to the first mounting plate 6.

[0022] The No. 1 motor 10 on the outside of the No. 1 mounting plate 6 drives the No. 1 gear 9 to rotate, thereby driving the ring gear 8 and the conical roller 4 to rotate. Sewage enters from the large end of the conical roller 4 through the sewage inlet pipe 12 that penetrates the No. 1 mounting plate 6 and is inserted into the interior. The liquid part is filtered out through the filter screen 5 and sent to the sedimentation tank 1. The solid sludge is lifted along the inner wall as the inclined conical roller 4 rotates, which avoids the sludge from accumulating in the sedimentation tank 1 and reduces the volume requirement of the sedimentation tank 1.

[0023] The two ends of the sludge trough 13 inside the conical roller 4 are fixedly connected to the first mounting plate 6 and the second mounting plate 7. A gap is formed between the side away from the scraper 14 and the filter screen 5 for sludge to pass through. The scraper 14, which is close to the inner side of the filter screen 5, is an elastic rubber plate, which is set along the generatrix of the conical roller 4 and the distance between it and the inner side of the filter screen 5 is less than 2mm.

[0024] The lifted sludge enters the collection area through gaps and is continuously scraped down into the sludge tank 13 by the scraper 14. One end of the sludge conveying rod 15 is connected to the second motor 16, and the other end extends into the sludge tank 13. The second motor 16 drives the sludge conveying rod 15 to rotate, and the sludge is automatically discharged from the sludge tank 13 through the drain pipe 17 inserted into the second mounting plate 7. This achieves efficient collection and automated conveying of sludge, eliminating the need for frequent manual cleaning and reducing maintenance costs.

[0025] The cleaning pipe 18 on the outside of the conical roller 4 is connected to the water pump 20. The water pump 20 is connected to the inside of the sedimentation tank 1 through a pipe. The water pump 20 draws water from the sedimentation tank 1 and circulates it to the cleaning pipe 18. The water is then rinsed through multiple nozzles 19. The water flows through the pores of the filter screen 5 to clean both the inside and outside sides, preventing sludge particles from clogging the pores of the filter screen, ensuring filtration efficiency, and building a water resource recycling system to avoid wasting external water sources.

[0026] Furthermore, mounting plate 6 and mounting plate 7 are rotatably connected to both ends of tapered roller 4 via ring bearing 11 to ensure stable rotation of tapered roller 4. Sewage inlet pipe 12 passes through mounting plate 6 and is inserted into tapered roller 4 to achieve stable sewage input.

[0027] The elastic rubber material of the scraper 14 and the spacing between it and the filter screen 5 allow it to fit tightly against the inner side of the filter screen 5, effectively scraping off the attached sludge. The cleaning pipe 18 is connected to the inside of the sedimentation tank 1 through the water pump 20, forming a closed-loop water circulation flushing system to continuously clean the filter screen 5. The sunshade 21 on the top of the sedimentation tank 1 and above the filter roller assembly 3 can block sunlight and reduce the changes in impurities in the sewage caused by light. The protective nets 22 on both sides of the sedimentation tank 1 play a safety protection role to prevent personnel from accidentally contacting the equipment.

[0028] The working principle of the above embodiment is as follows: After the sewage enters the conical roller, the liquid part is filtered out through the filter screen to the sedimentation tank, and the solid sludge is lifted along the inclined filter screen surface as the roller rotates, enters the collection area through the gap of the sludge tank, is scraped off into the tank by the scraper, and is then discharged through the screw conveyor. The water pump draws out the settled clear water to rinse the filter screen at regular intervals to maintain the filtration efficiency. The sunshade and protective net provide protection for the equipment.

[0029] The installation method, connection method, or setting method disclosed in this embodiment are all common mechanical connections.

[0030] Any connection method that can achieve its beneficial effect can be implemented, so the specific structural composition and working principle will not be described in detail in this embodiment.

[0031] 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 cement separation device for wastewater treatment, characterized in that: The system includes a sedimentation tank (1), on which a filter roller assembly (3) is fixedly installed on the top via a mounting frame (2). The filter roller assembly (3) includes an inclined conical roller (4) and a filter screen (5). Both ends of the roller are connected to the mounting frame (2) via a first mounting plate (6) and a second mounting plate (7), respectively. A ring gear (8) is fitted on the outer side of the large end of the conical roller (4). A first gear (9) meshing with the ring gear (8) is rotatably connected to the first mounting plate (6). A first motor (10) driving the first gear (9) is provided on the outer side of the first mounting plate (6). A sludge trough (13) is provided inside the conical roller (4). A scraper (14) that contacts the inner side of the filter screen (5) is provided on one side of the sludge trough (13). A sludge conveying rod (15) that penetrates the first mounting plate (6) is provided inside the sludge trough. A cleaning pipe (18) connecting multiple nozzles (19) is provided on the outer side of the conical roller (4).

2. The cement separation device for wastewater treatment according to claim 1, characterized in that: The first mounting plate (6) and the second mounting plate (7) are rotatably connected to both ends of the conical roller (4) through the ring bearing (11), and the sewage inlet pipe (12) passes through the first mounting plate (6) and is inserted into the conical roller (4).

3. The cement separation device for wastewater treatment according to claim 1, characterized in that: The two ends of the sludge trough (13) are fixedly connected to the first mounting plate (6) and the second mounting plate (7) respectively. A gap is formed between the side of the sludge trough (13) away from the scraper (14) and the filter screen (5) for sludge to pass through.

4. A cement separation device for wastewater treatment according to claim 1, characterized in that: One end of the sludge conveying rod (15) is connected to a second motor (16), and the other end extends into the sludge tank (13). The second mounting plate (7) is fixedly connected to a drain pipe (17) inserted into the sludge tank (13).

5. A cement separation device for wastewater treatment according to claim 1, characterized in that: The scraper (14) is an elastic rubber plate. The scraper (14) is arranged along the generatrix of the conical roller (4). The distance between the scraper (14) and the inner side of the filter screen (5) is less than 2 mm.

6. A cement separation device for wastewater treatment according to claim 1, characterized in that: The cleaning pipe (18) is connected to a water pump (20) via a pipe, and the water pump (20) is connected to the inside of the sedimentation tank (1) via a pipe.

7. A cement separation device for wastewater treatment according to claim 1, characterized in that: A sunshade (21) is provided on the top of the sedimentation tank (1) and above the filter roller assembly (3), and a protective net (22) is provided on both sides of the sedimentation tank (1).

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