A sewage treatment anti-blocking rotary grid

Abstract

The utility model discloses a kind of anti-blocking rotary grating for sewage treatment, specifically related to sewage treatment field, including shell, the inside of the shell is provided with grating net, the outer end of the shell is fixedly provided with water pump, the output end of the water pump is connected and fixedly set on the water tray of the inside wall of shell, one end of the water tray is communicated with water jet pipe by pipeline, a plurality of high-pressure nozzles are evenly provided on the water jet pipe, the inside of the shell is rotatably arranged in rotating shaft, a plurality of cams are evenly provided on the rotating shaft, limit piece is fixedly arranged at both ends of each cam on the rotating shaft, torsion spring is arranged between the limit piece and cam, bristle is fixedly arranged below the grating net, the bottom end of the shell is provided with collection hopper. The utility model is cleaned to grating net using multiple ways, cleaning effect is better, facilitate the use of grating net.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically an anti-clogging rotary bar for wastewater treatment. Background Technology

[0002] Pollutants in wastewater generally exist in three forms: suspended (including floating), colloids, and dissolved. The main targets of physical wastewater treatment are suspended solids and some colloids that may clog pump impellers and pipe valves, and increase the load on subsequent treatment units. Therefore, physical wastewater treatment is generally also called solid-liquid separation treatment. In principle, solid-liquid separation of wastewater is mainly divided into two categories: one where the wastewater is restricted, and suspended solids are removed as they flow through the water; the other where suspended solids are restricted, and the wastewater flows while discarding them. Bar screens belong to the latter category. Bar screens are the most important auxiliary equipment in wastewater pumping stations. A bar screen generally consists of a set of parallel bars, placed obliquely at the inlet of the pumping station's collection tank.

[0003] Existing wastewater treatment screens lack the ability to automatically remove pollutants from wastewater. During use, manual cleaning of the screen surface is required, increasing the workload for staff. Some rotary screens have cleaning brushes along their movement path, but these brushes typically have soft bristles, making them ineffective at cleaning the screen. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging rotary bar for wastewater treatment to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A clogging-resistant rotary screen for wastewater treatment includes a housing, an inner side of which is provided with a screen mesh, a water pump fixedly mounted at the outer end of the housing, the output end of which is connected to a water tray fixedly mounted on the inner wall of the housing, one end of which is connected to a spray pipe via a pipe, and a plurality of high-pressure nozzles are evenly spaced on the spray pipe, a rotating shaft is rotatably mounted inside the housing, a plurality of cams are evenly spaced on the rotating shaft, a limit member is fixedly mounted at both ends of each cam on the rotating shaft, a torsion spring is provided between the limit member and the cam, bristles are fixedly mounted below the screen mesh, and a collection hopper is provided at the bottom end of the housing.

[0007] In a preferred embodiment, a drive motor is fixedly mounted on the housing, a drive shaft is fixedly connected to the output shaft of the drive motor, and a driven shaft is rotatably disposed on the inner side wall of the housing. Both the drive shaft and the driven shaft are disposed inside the grid mesh. The drive motor drives the drive shaft to rotate, and the rotation of the drive shaft enables the grid mesh to be transmitted.

[0008] In a preferred embodiment, a drive shaft is rotatably mounted on the center of the water pan via a bearing. One end of the drive shaft passes through the water pan, and a drive sprocket is fixedly mounted on the side of the drive shaft at the outer end of the water pan. The drive sprocket is connected to a driven sprocket via a chain drive, and the driven sprocket is fixedly mounted on a rotating shaft. A plurality of sealing plates are evenly spaced at the end of the drive shaft inside the water pan, and rubber sealing gaskets are provided on the outer walls of the sealing plates. When water flows inside the water pan, it drives the drive shaft to rotate. When the drive shaft rotates, it drives the rotating shaft to rotate via the drive sprocket, chain, and driven sprocket. When the rotating shaft rotates, it causes the cam to rotate.

[0009] In a preferred embodiment, the high-pressure nozzle is tilted upwards, the input end of the water pump is inserted into the sewage body through a pumping pipe, and the end of the pumping pipe is equipped with a filter screen. The water pump can draw water from inside the sewage body and spray it out into the high-pressure nozzle, which can wash away impurities on the screen.

[0010] In a preferred embodiment, the torsion spring is sleeved on the rotating shaft, the cam is rotatably mounted on the rotating shaft, and the two ends of the torsion spring are respectively mounted on the limiting member and the outer wall of the cam. The torsion spring enables the cam to make close contact with the grid mesh.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by setting up a high-pressure nozzle, cam, torsion spring, brush bristles and other structures, first uses the high-pressure nozzle to flush the grid mesh for preliminary treatment, then uses the cam to continuously impact the grid mesh, causing the grid mesh to vibrate and shake off some impurities, and finally uses the brush bristles to clean the grid mesh. This utility model uses multiple methods to clean the grid mesh, resulting in better cleaning effect and convenient use of the grid mesh;

[0013] 2. This utility model, by setting up a water pan, drive shaft, sealing plate, driving sprocket, chain and driven sprocket, etc., uses the water pump to transport water to drive the rotation of the cam. It does not require an additional drive source, which can effectively reduce the use of electrical energy resources. Moreover, the water pan, sprocket, chain and other structures are made of corrosion-resistant materials, which has a long service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the structure of the water tray of this utility model.

[0018] The following are the labels in the diagram: 1. Shell; 2. Grille; 3. Water pump; 4. Water pan; 5. Pipe; 6. Spray pipe; 7. High-pressure nozzle; 8. Rotating shaft; 9. Cam; 10. Limiting element; 11. Torsion spring; 12. Drive motor; 13. Drive shaft; 14. Driven shaft; 15. Drive shaft; 16. Drive sprocket; 17. Chain; 18. Driven sprocket; 19. Sealing plate; 20. Brush bristles; 21. Collection hopper. Detailed Implementation

[0019] 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.

[0020] Example: Please refer to Figures 1-4 This utility model provides an anti-clogging rotary bar for sewage treatment, the technical solution of which is as follows:

[0021] A clogging-resistant rotary bar for wastewater treatment includes a housing 1, a bar screen 2 disposed on the inner side of the housing 1, a water pump 3 fixedly disposed at the outer end of the housing 1, the output end of the water pump 3 being connected to a water tray 4 fixedly disposed on the inner wall of the housing 1, one end of the water tray 4 being connected to a spray pipe 6 via a pipe 5, a plurality of high-pressure nozzles 7 being evenly spaced on the spray pipe 6, a rotating shaft 8 being rotatably disposed inside the housing 1, a plurality of cams 9 being evenly spaced on the rotating shaft 8, a limiting element 10 being fixedly disposed at both ends of each cam 9 on the rotating shaft 8, a torsion spring 11 being disposed between the limiting element 10 and the cam 9, bristles 20 being fixedly disposed below the bar screen 2, and a collection hopper 21 being disposed at the bottom end of the housing 1.

[0022] In a preferred embodiment, a drive motor 12 is fixedly mounted on the housing 1, and a drive shaft 13 is fixedly connected to the output shaft of the drive motor 12. A driven shaft 14 is rotatably arranged on the inner side wall of the housing 1. Both the drive shaft 13 and the driven shaft 14 are arranged inside the grid mesh 2. When the drive motor 12 is running, it can drive the drive shaft 13 to rotate, and the grid mesh 2 is driven by the drive shaft 13 and the driven shaft 14.

[0023] In a preferred embodiment, a drive shaft 15 is rotatably mounted on the middle position of the water tray 4 via a bearing. One end of the drive shaft 15 passes through the water tray 4, and a drive sprocket 16 is fixedly mounted on one side of the drive shaft 15 at the outer end of the water tray 4. The drive sprocket 16 is connected to a driven sprocket 18 via a chain 17, and the driven sprocket 18 is fixedly mounted on a rotating shaft 8. A plurality of sealing plates 19 are evenly spaced at one end of the drive shaft 15 inside the water tray 4, and rubber sealing gaskets are provided on the outer side walls of the sealing plates 19.

[0024] In practical use, when the water pump 3 draws flushing water through the water pan 4, the drive shaft 15 inside the water pan 4 rotates under the action of the sealing plate 19, and the water in the water pan 4 enters the spray pipe 6. The high-pressure nozzle 7 sprays the water onto the grid screen 2, which can wash away the debris adhering to the grid screen 2. When the drive shaft 15 rotates, it can drive the drive sprocket 16 to rotate. When the drive sprocket 16 rotates, it can drive the driven sprocket 18 to rotate through the chain 17. When the driven sprocket 18 rotates, it can cause the cam 9 to hit the grid screen 2, causing the debris on the grid screen 2 to fall off.

[0025] In a preferred embodiment, the high-pressure nozzle 7 is inclined upwards, the input end of the water pump 3 is inserted into the sewage body through a pumping pipe, and the end of the pumping pipe is equipped with a filter screen, so as to use sewage to wash the grid screen 2 and save water resources.

[0026] In a preferred embodiment, the torsion spring 11 is sleeved on the rotating shaft 8, and the cam 9 is rotatably mounted on the rotating shaft 8. The two ends of the torsion spring 11 are respectively mounted on the limiting member 10 and the outer wall of the cam 9. The torsion spring 11 enables the cam 9 to reset after contacting the grid mesh 2, resulting in a better processing effect on the grid mesh 2.

[0027] The working principle of this utility model:

[0028] In operation, the drive motor 12 drives the drive shaft 13 to rotate, causing the bar screen 2 to process the sewage. After entering the housing 1, the bar screen 2 first passes through the high-pressure nozzle 7. The water pump 3 is then turned on, pumping flushing water into the water pan 4. After flowing out of the water pan 4, the water enters the spray pipe 6, where the high-pressure nozzle 7 sprays water onto the bar screen 2. As the water passes through the water pan 4, it pushes the sealing plate 19 to move, thereby causing the drive shaft 15 to rotate. When the drive shaft 15 rotates... The drive sprocket 16 rotates, and the drive sprocket 16 drives the driven sprocket 18 to rotate via the chain 17. The driven sprocket 18 drives the rotating shaft 8 to rotate, which in turn drives the cam 9 to rotate. When the cam 9 approaches the grid 2, it can impact the grid 2 and shake off the debris on the grid 2. After the cam 9 separates from the grid 2, it resets under the action of the torsion spring 11. Then, the brush bristles 20 clean the grid 2. The cleaned debris falls into the collection hopper 21. The collection hopper 21 can be cleaned periodically.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A clogging-resistant rotary bar for wastewater treatment, comprising a housing (1), wherein a bar screen (2) is provided on the inner side of the housing (1), characterized in that: A water pump (3) is fixedly installed at the outer end of the housing (1). The output end of the water pump (3) is connected to a water tray (4) fixedly installed on the inner side wall of the housing (1). One end of the water tray (4) is connected to a water spray pipe (6) through a pipe (5). Several high-pressure nozzles (7) are evenly spaced on the water spray pipe (6). A rotating shaft (8) is rotatably installed inside the housing (1). Several cams (9) are evenly spaced on the rotating shaft (8). Limiting elements (10) are fixedly installed at both ends of each cam (9) on the rotating shaft (8). A torsion spring (11) is installed between the limiting element (10) and the cam (9). Brush bristles (20) are fixedly installed below the grid (2). A collection hopper (21) is installed at the bottom end of the housing (1).

2. The anti-clogging rotary bar for wastewater treatment according to claim 1, characterized in that: A drive motor (12) is fixedly installed on the housing (1). A drive shaft (13) is fixedly connected to the output shaft of the drive motor (12). A driven shaft (14) is rotatably arranged on the inner side wall of the housing (1). Both the drive shaft (13) and the driven shaft (14) are arranged inside the grid (2).

3. The anti-clogging rotary bar for wastewater treatment according to claim 1, characterized in that: A drive shaft (15) is rotatably mounted on the middle position of the water pan (4) via a bearing. One end of the drive shaft (15) passes through the water pan (4), and a drive sprocket (16) is fixedly mounted on one side of the outer end of the drive shaft (15). The drive sprocket (16) is connected to a driven sprocket (18) via a chain (17). The driven sprocket (18) is fixedly mounted on the rotating shaft (8).

4. The anti-clogging rotary bar for wastewater treatment according to claim 3, characterized in that: The drive shaft (15) is located inside the water pan (4) and a number of sealing plates (19) are evenly spaced at one end. The outer side wall of the sealing plate (19) is provided with a rubber sealing gasket.

5. The anti-clogging rotary bar for wastewater treatment according to claim 1, characterized in that: The high-pressure nozzle (7) is tilted upwards, and the input end of the water pump (3) is inserted into the sewage body through a pumping pipe, and a filter screen is provided at the end of the pumping pipe.

6. The anti-clogging rotary bar for wastewater treatment according to claim 1, characterized in that: The torsion spring (11) is sleeved on the rotating shaft (8), and the cam (9) is rotatably mounted on the rotating shaft (8). The two ends of the torsion spring (11) are respectively mounted on the limiting member (10) and the outer wall of the cam (9).

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