An integrated device for sludge thickening in raw water treatment

Abstract

This utility model belongs to the field of wastewater treatment technology, specifically an integrated device for sludge thickening in raw water treatment. It includes a sludge thickening tank, with a traveling beam fixedly connected to its upper surface and a conical discharge tank fixedly connected to its lower surface. An internal stirring and adjusting mechanism, including a sludge scraper, is installed inside the sludge thickening tank. The scraper, rotating circumferentially, scrapes sludge from the inner walls of the sludge thickening tank and the conical discharge tank. This integrated device, through the cooperation of the tilting beam and adjusting hydraulic rod, allows the sludge scraper to automatically adjust its angle according to the curvature of the tank wall, perfectly fitting the transition area from the vertical tank wall to the inclined conical wall, ensuring more thorough sludge removal without leaving any dead corners. A rotating motor drives a drive bevel gear, enabling linear adjustment of the scraper's height to adapt to changes in sludge height after discharge, making operation more flexible and convenient.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an integrated device for thickening sludge from raw water treatment. Background Technology

[0002] The sludge produced during wastewater treatment has a high water content, resulting in a large volume and making its treatment, utilization, and transportation difficult. Sludge thickening reduces the water content and volume of the sludge by thickening it, thereby reducing subsequent treatment costs.

[0003] Chinese patent CN217651101U discloses an integrated device for sludge thickening in raw water treatment, including a sludge thickening tank, a central pipe, and a filter box. The output of a motor drives a rotating rod to rotate, which scrapes away the sludge at the bottom. When the rotating rod rotates, it drives the stirring teeth to rotate, allowing the stirring teeth to fully contact the sludge and enabling the sludge to rotate efficiently, thus increasing working efficiency. A scraper fixedly installed at the lower end of the rotating rod scrapes the inner wall of the sludge thickening tank to prevent impurities from adhering to the inner wall of the sludge thickening tank.

[0004] However, in the above technical solutions, the angle and height of the scraper are fixed, and it can only rotate and scrape the wall of a designated area of ​​the sludge tank. However, as the sludge is discharged, the sludge on the uppermost side of the tank wall remains because the scraper cannot reach it. Therefore, the present invention solves the shortcomings of the above technical problems. Utility Model Content

[0005] Based on the aforementioned technical problems, this utility model proposes an integrated device for thickening sludge from raw water treatment.

[0006] This utility model proposes an integrated device for sludge thickening in raw water treatment, including a sludge thickening tank. A traveling beam is fixedly connected to the upper surface of the sludge thickening tank, and a conical discharge tank is fixedly connected to the lower surface of the sludge thickening tank. A discharge hole is opened on one side of the bottom end of the conical discharge tank. A stirring and adjusting mechanism is provided inside the sludge thickening tank. The stirring and adjusting mechanism includes a sludge scraper. When the sludge scraper rotates circumferentially, it scrapes the sludge on the inner wall of the sludge thickening tank and the conical discharge tank.

[0007] Preferably, the stirring and adjusting mechanism further includes two tilting beams, and a plurality of sludge scrapers are inclinedly distributed and fixedly connected to the lower surfaces of the two tilting beams, with connecting blocks hinged to the side surfaces of the two tilting beams that are close to each other.

[0008] The above technical solution involves installing the sludge scraper using two tilting beams, with one end of each beam hinged to one side of the connecting block, forming a flexible linkage system. During circumferential rotation, the angle of the sludge scraper is automatically and finely adjusted to perfectly fit the curvature transition zone from the vertical tank wall to the inclined conical wall. The tilted sludge scrapers form an angle similar to a propeller, reducing resistance compared to vertical sludge scrapers. The sludge scrapers are at an angle to the horizontal plane, utilizing the sludge's own weight for automatic sliding.

[0009] Preferably, a rotating beam is fixedly inserted into the middle surface of the connecting block, and adjusting hydraulic rods are symmetrically distributed and hinged on the upper two sides of the rotating beam. The piston rod surface of the adjusting hydraulic rod is hinged to the upper surface of the free end of the flipping beam.

[0010] Through the above technical solution, in order to achieve the sludge scraper adhering to the tank wall, the hinged adjusting hydraulic rod can adjust the angle of the free end of the tilting beam, thereby providing continuous and stable wall-adhering pressure, thoroughly removing the residual adhesive layer on the tank wall, and the rotating beam can realize the rotation of the tilting beam to drive the sludge scraper for cleaning.

[0011] Preferably, a buffer telescopic rod is hinged to the upper surface of one end of the flipping beam near the rotating beam, a buffer spring is fixedly sleeved on the outer surface of the buffer telescopic rod, and the free end of the buffer telescopic rod is hinged to the outer surface of the rotating beam.

[0012] Through the above technical solutions, the newly added buffer telescopic rod and buffer spring structure have built a two-stage buffer protection mechanism on the basis of the hydraulic adjustment system, which has enabled the equipment to achieve a breakthrough improvement in reliability and lifespan under extreme working conditions.

[0013] Preferably, the stirring adjustment mechanism further includes an adjustment screw rotatably connected to the upper surface of the rotating beam via a rotating connecting flange, a bevel gear disk rotatably connected to the upper outer surface of the rotating beam via a bearing, a drive motor fixedly connected to the upper outer surface of the rotating beam via a mounting block, and a drive bevel gear fixedly connected to the outer surface of the output shaft of the drive motor via a coupling, the drive bevel gear meshing with the bevel gear disk.

[0014] In order to achieve the rotation adjustment of the sludge scraper through the above technical solution, the drive motor controls the rotation of the drive bevel gear, so that the drive bevel gear rotates on the outer surface of the bevel gear disk, thereby causing the sludge scraper to rotate and scrape the tank wall.

[0015] Preferably, the stirring adjustment mechanism further includes a threaded sleeve rotatably connected to the lower surface of the traveling beam via a bearing. The threaded sleeve is threaded onto the outer surface of the adjusting screw. A driven bevel gear is fixedly sleeved on the outer surface of the threaded sleeve. A rotating motor is fixedly connected to the lower surface of the traveling beam. A driving bevel gear is fixedly connected to the outer surface of the output shaft of the rotating motor via a coupling. The driving bevel gear meshes with the driven bevel gear.

[0016] Through the above technical solution, in order to achieve height adjustment of the sludge scraper and make the sludge scraper perfectly fit the curvature transition zone from the vertical tank wall to the inclined conical wall, while adapting to the height of the sludge after it is discharged for rotation and scraping, when the rotating motor drives the active bevel gear to rotate, the meshing driven bevel gear can drive the threaded sleeve to rotate, thereby enabling linear height adjustment of the adjusting screw, which in turn drives the rotating beam to lift, thus achieving height adjustment of the sludge scraper.

[0017] Preferably, a guide sleeve is fixedly connected to the middle surface of the traveling beam, guide rods are fixedly connected to the inner surface of the guide sleeve in a symmetrical manner, guide grooves are symmetrically distributed on the outer surface of the adjusting screw, the outer surface of the guide rod is slidably inserted into the inner wall of the guide groove, a steel cable is fixedly connected to the frame surface of the traveling beam, a stabilizing sleeve is fixedly connected to the free end of the steel cable, and the stabilizing sleeve is movably sleeved on the outer surface of the adjusting screw.

[0018] In order to support and guide the linear movement of the adjusting screw and stabilize its upper end, the above technical solution uses a guide rod that slides on the inner wall of the guide groove to achieve guidance, while a stabilizing sleeve connected by a steel cable provides limit protection for the upper end of the adjusting screw.

[0019] The beneficial effects of this utility model are as follows:

[0020] By setting up a stirring and adjusting mechanism, the height and folding angle of the sludge scraper can be adjusted to adapt to the curvature of the pool wall. During the adjustment process, through the cooperation of the tilting beam and the adjusting hydraulic rod, the sludge scraper can automatically adjust its angle according to the curvature of the pool wall, perfectly fitting the transition area from the vertical pool wall to the inclined conical wall, ensuring more thorough sludge removal without leaving any dead corners. By rotating the motor to drive the active bevel gear, the height of the sludge scraper can be linearly adjusted to adapt to the height changes after the sludge is discharged, making the operation more flexible and convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an integrated device for thickening sludge in raw water treatment proposed in this utility model;

[0022] Figure 2This is a three-dimensional view of the discharge hole structure of an integrated device for thickening sludge in raw water treatment proposed in this utility model;

[0023] Figure 3 This is a three-dimensional view of the tilting beam structure of an integrated device for thickening sludge in raw water treatment proposed in this utility model;

[0024] Figure 4 This is a three-dimensional view of the bevel gear disk structure of the integrated device for thickening sludge in raw water treatment proposed in this utility model;

[0025] Figure 5 This is a three-dimensional view of the sludge scraper structure of an integrated sludge thickening device for raw water treatment proposed in this utility model.

[0026] Figure 6 This is a three-dimensional view of the regulating screw structure of an integrated device for thickening sludge in raw water treatment proposed in this utility model;

[0027] Figure 7 This is a three-dimensional view of the guide trough structure of an integrated device for thickening sludge in raw water treatment proposed in this utility model.

[0028] In the diagram: 1. Sludge thickening tank; 2. Traveling beam; 3. Conical discharge tank; 4. Discharge hole; 5. Sludge scraper; 6. Tilting beam; 7. Connecting block; 8. Rotating beam; 9. Adjusting hydraulic rod; 10. Buffer telescopic rod; 11. Buffer spring; 12. Adjusting screw; 13. Bevel gear disc; 14. Drive motor; 15. Drive bevel gear; 16. Threaded sleeve; 17. Driven bevel gear; 18. Rotating motor; 19. Driving bevel gear; 20. Guide sleeve; 21. Guide rod; 22. Guide groove; 23. Steel cable; 24. Stabilizing sleeve. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figures 1-7 An integrated device for sludge thickening in raw water treatment includes a sludge thickening tank 1, a traveling beam 2 fixedly connected to the upper surface of the sludge thickening tank 1, a conical discharge tank 3 fixedly connected to the lower surface of the sludge thickening tank 1, a discharge hole 4 opened on one side of the bottom end of the conical discharge tank 3, and a stirring and adjusting mechanism provided inside the sludge thickening tank 1, which includes a sludge scraper 5. When the sludge scraper 5 rotates in the circumferential direction, it scrapes the sludge on the inner wall of the sludge thickening tank 1 and the conical discharge tank 3.

[0031] To install the sludge scraper 5, the stirring and adjusting mechanism also includes two tilting beams 6. Multiple sludge scrapers 5 are inclinedly distributed and fixedly connected to the lower surfaces of the two tilting beams 6. Connecting blocks 7 are hinged to the surfaces of the two tilting beams 6 that are close to each other. The sludge scrapers 5 are installed through the two tilting beams 6, and one end of the two tilting beams 6 is hinged to one side of the connecting block 7, thus forming a flexible linkage system. When rotating in the circumferential direction, the angle of the sludge scraper 5 is automatically finely adjusted to perfectly fit the curvature transition zone from the vertical pool wall to the inclined conical wall. The inclined sludge scrapers 5 form an angle similar to a propeller, which reduces resistance compared to the vertical sludge scraper 5. The sludge scraper 5 is inclined to the horizontal plane and uses the weight of the sludge to achieve automatic sliding.

[0032] To ensure that the sludge scraper 5 adheres to the tank wall, a rotating beam 8 is fixedly inserted into the middle surface of the connecting block 7. Adjustable hydraulic rods 9 are symmetrically distributed and hinged on both sides of the upper end of the rotating beam 8. The piston rod surface of the adjustable hydraulic rod 9 is hinged to the upper surface of the free end of the tilting beam 6. The hinged adjustable hydraulic rod 9 can adjust the angle of the free end of the tilting beam 6, thereby providing a continuous and stable wall-adhering pressure to thoroughly remove the residual adhesive layer on the tank wall. The rotating beam 8 can also enable the tilting beam 6 to drive the sludge scraper 5 to rotate and remove the sludge.

[0033] A buffer telescopic rod 10 is hinged to the upper surface of the end of the tilting beam 6 near the rotating beam 8. A buffer spring 11 is fixedly sleeved on the outer surface of the buffer telescopic rod 10. The free end of the buffer telescopic rod 10 is hinged to the outer surface of the rotating beam 8. The newly added buffer telescopic rod 10 and buffer spring 11 structure builds a two-stage buffer protection mechanism on the basis of the hydraulic adjustment system, which enables the reliability and life of the equipment to be improved by a breakthrough under extreme working conditions.

[0034] To achieve the rotation adjustment of the sludge scraper 5, the stirring adjustment mechanism also includes an adjustment screw 12 rotatably connected to the upper surface of the rotating beam 8 via a rotatable connecting flange. A bevel gear disk 13 is rotatably connected to the upper outer surface of the rotating beam 8 via a bearing. A drive motor 14 is fixedly connected to the upper outer surface of the rotating beam 8 via a mounting block. A drive bevel gear 15 is fixedly connected to the outer surface of the output shaft of the drive motor 14 via a coupling. The drive bevel gear 15 meshes with the bevel gear disk 13. The drive motor 14 controls the rotation of the drive bevel gear 15, thereby causing the drive bevel gear 15 to rotate on the outer surface of the bevel gear disk 13, which in turn causes the sludge scraper 5 to rotate and scrape the tank wall.

[0035] To achieve height adjustment of the sludge scraper 5 and ensure it perfectly conforms to the curvature transition zone from the vertical tank wall to the inclined conical wall, while also adapting to the height of the discharged sludge for rotational scraping, the stirring and adjusting mechanism further includes a threaded sleeve 16 rotatably connected to the lower surface of the traveling beam 2 via bearings. The threaded sleeve 16 is threaded onto the outer surface of the adjusting screw 12, and a driven bevel gear 17 is fixedly fitted onto the outer surface of the threaded sleeve 16. A rotating motor 18 is fixedly connected to the lower surface of the traveling beam 2, and a driving bevel gear 19 is fixedly connected to the outer surface of the output shaft of the rotating motor 18 via a coupling. The driving bevel gear 19 meshes with the driven bevel gear 17. When the rotating motor 18 drives the driving bevel gear 19 to rotate, the meshing driven bevel gear 17 drives the threaded sleeve 16 to rotate, thereby enabling linear height adjustment of the adjusting screw 12. This causes the adjusting screw 12 to lift the rotating beam 8, further achieving height adjustment of the sludge scraper 5.

[0036] To support and guide the linear movement of the adjusting screw 12 and stabilize its upper end, a guide sleeve 20 is fixedly connected to the middle surface of the traveling beam 2. Guide rods 21 are symmetrically distributed and fixedly connected to the inner surface of the guide sleeve 20. Guide grooves 22 are symmetrically distributed on the outer surface of the adjusting screw 12. The outer surface of the guide rods 21 slides into the inner wall of the guide grooves 22. A steel cable 23 is fixedly connected to the frame surface of the traveling beam 2. A stabilizing sleeve 24 is fixedly connected to the free end of the steel cable 23. The stabilizing sleeve 24 is movably sleeved on the outer surface of the adjusting screw 12. The guiding is achieved by the guide rods 21 sliding on the inner wall of the guide grooves 22. The stabilizing sleeve 24 connected by the steel cable 23 provides limit protection for the upper end of the adjusting screw 12.

[0037] By setting up a stirring and adjusting mechanism, the height and folding angle of the sludge scraper 5 can be adjusted to adapt to the curvature of the current pool wall. During the adjustment process, through the cooperation of the flipping beam 6 and the adjusting hydraulic rod 9, the sludge scraper 5 can automatically adjust its angle according to the curvature change of the pool wall, perfectly fitting the transition area from the vertical pool wall to the inclined conical wall, ensuring more thorough sludge removal without leaving any dead corners. By rotating the motor 18 to drive the active bevel gear 19, the height of the sludge scraper 5 can be linearly adjusted to adapt to the height change after the sludge is discharged, making the operation more flexible and convenient.

[0038] Working principle: In a specific embodiment of this utility model, the sludge flocs settled at the bottom of the sludge thickening tank 1 and the conical discharge tank 3 can be discharged from the discharge hole 4. During the discharge process, the drive motor 14 controls the drive bevel gear 15 to rotate, thereby causing the drive bevel gear 15 to rotate on the outer surface of the bevel gear disk 13, which in turn causes the sludge scraper 5 to rotate and scrape the tank wall.

[0039] During the sludge discharge process, the height of the sludge continuously decreases. At this time, the sludge scraper 5 is controlled to descend. When the drive bevel gear 19 is driven to rotate by the rotating motor 18, the driven bevel gear 17 can be engaged to drive the threaded sleeve 16 to rotate, thereby making the adjusting screw 12 linearly adjust the height. This makes the adjusting screw 12 drive the rotating beam 8 to rise, thus further realizing the height adjustment of the sludge scraper 5.

[0040] After the height of the sludge scraper 5 is adjusted, the hinged adjusting hydraulic rod 9 can adjust the angle of the free end of the tilting beam 6, and the tilting beam 6 is supported by the buffer spring 11 and the buffer telescopic rod 10, so that the sludge scraper 5 can still stick to the pool wall to scrape after the height is adjusted.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated device for thickening sludge from raw water treatment, comprising a sludge thickening tank (1), characterized in that: The upper surface of the sludge thickening tank (1) is fixedly connected to a traveling beam (2), and the lower surface of the sludge thickening tank (1) is fixedly connected to a conical discharge tank (3). A discharge hole (4) is opened on one side of the bottom end of the conical discharge tank (3). The sludge thickening tank (1) is equipped with a stirring and adjusting mechanism, which includes a sludge scraper (5). When the sludge scraper (5) rotates in the circumferential direction, it scrapes the sludge on the inner wall of the sludge thickening tank (1) and the conical discharge tank (3).

2. The integrated device for thickening sludge from raw water treatment according to claim 1, characterized in that: The stirring and adjusting mechanism also includes two tilting beams (6), and multiple sludge scrapers (5) are inclinedly distributed and fixedly connected to the lower surfaces of the two tilting beams (6). Connecting blocks (7) are hinged to the side surfaces of the two tilting beams (6) that are close to each other.

3. The integrated device for thickening sludge from raw water treatment according to claim 2, characterized in that: A rotating beam (8) is fixedly inserted into the middle surface of the connecting block (7). Adjusting hydraulic rods (9) are symmetrically distributed on both sides of the upper end of the rotating beam (8). The piston rod surface of the adjusting hydraulic rod (9) is hinged to the upper surface of the free end of the flip beam (6).

4. The integrated device for thickening sludge from raw water treatment according to claim 3, characterized in that: A buffer telescopic rod (10) is hinged to the upper surface of one end of the flip beam (6) near the rotating beam (8). A buffer spring (11) is fixedly sleeved on the outer surface of the buffer telescopic rod (10). The free end of the buffer telescopic rod (10) is hinged to the outer surface of the rotating beam (8).

5. The integrated device for thickening sludge from raw water treatment according to claim 4, characterized in that: The stirring adjustment mechanism also includes an adjustment screw (12) rotatably connected to the upper surface of the rotating beam (8) via a rotating connecting flange. A bevel gear disk (13) is rotatably connected to the upper outer surface of the rotating beam (8) via a bearing. A drive motor (14) is fixedly connected to the upper outer surface of the rotating beam (8) via a mounting block. A drive bevel gear (15) is fixedly connected to the outer surface of the output shaft of the drive motor (14) via a coupling. The drive bevel gear (15) meshes with the bevel gear disk (13).

6. The integrated device for thickening sludge from raw water treatment according to claim 5, characterized in that: The stirring adjustment mechanism also includes a threaded sleeve (16) rotatably connected to the lower surface of the walking beam (2) via a bearing. The threaded sleeve (16) is threaded onto the outer surface of the adjusting screw (12). A driven bevel gear (17) is fixedly sleeved on the outer surface of the threaded sleeve (16). A rotating motor (18) is fixedly connected to the lower surface of the walking beam (2). A driving bevel gear (19) is fixedly connected to the outer surface of the output shaft of the rotating motor (18) via a coupling. The driving bevel gear (19) meshes with the driven bevel gear (17).

7. The integrated device for thickening raw water treatment sludge according to claim 6, characterized in that: A guide sleeve (20) is fixedly connected to the middle surface of the walking beam (2). Guide rods (21) are fixedly connected to the inner surface of the guide sleeve (20) in a symmetrical manner. Guide grooves (22) are symmetrically distributed on the outer surface of the adjusting screw (12). The outer surface of the guide rod (21) is slidably inserted into the inner wall of the guide groove (22). A steel cable (23) is fixedly connected to the frame surface of the walking beam (2). A stabilizing sleeve (24) is fixedly connected to the free end of the steel cable (23). The stabilizing sleeve (24) is movably sleeved on the outer surface of the adjusting screw (12).

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