A device for removing scum from the surface of a sedimentation basin

Abstract

The utility model embodiment provides a kind of sedimentation tank water surface defoaming device, it is related to sewage purification technical field.The sedimentation tank water surface defoaming device, including sedimentation tank body, the surface of the left side of the sedimentation tank body is provided with cleaning assembly, the cleaning assembly includes first water pump, the water outlet of the first water pump is communicated with transmission pipeline, the right end of the transmission pipeline is penetrated to the inner chamber of sedimentation tank body, the bottom of the inner chamber of the sedimentation tank body is equipped with a plurality of rotary shower, by setting cleaning assembly, not only can effectively scatter and remove water surface foam, also can further optimize the processing effect of foam by vibrating water surface in operating process, while dispersing foam, cleaning assembly carries out sustained vibration to water surface.This vibration not only can prevent newly formed foam from re-aggregation, also can guide the foam that has been scattered to specified direction moves, ensure that processing effect is more thorough.

Description

Technical Field

[0001] This utility model relates to the field of wastewater purification technology, and in particular to a defoaming device for sedimentation tanks. Background Technology

[0002] A sedimentation tank surface demister is a device used to remove foam and other scum from the water surface. It is widely used in wastewater treatment, industrial wastewater treatment, and drinking water purification. Its main function is to remove foam and scum from the water surface through physical or mechanical means, thereby improving water quality and ensuring the effectiveness of subsequent treatment processes. Sedimentation tank surface demisters play a crucial role in wastewater treatment, not only effectively removing foam and scum but also improving overall treatment efficiency and water quality. By rationally selecting and configuring appropriate demisters, wastewater treatment performance can be significantly improved, meeting environmental standards and production requirements.

[0003] During wastewater treatment, the addition of coagulants such as polyaluminum chloride often produces a large amount of yellowish-green foam on the surface of flocculation tanks and horizontal sedimentation tanks. This is especially true during the peak algae bloom season in spring and summer, when large amounts of algae are carried to the surface by the coagulated flocs, further increasing the quantity and persistence of this foam. While coagulants like polyaluminum chloride promote the aggregation of suspended solids and colloidal particles into larger flocs, this process generates a large number of air bubbles, forming yellowish-green foam that is difficult to dissipate naturally. In spring and summer, with vigorous algae growth, these algae easily combine with the flocs generated by the coagulants, forming even larger scum. This phenomenon is particularly pronounced during peak algae blooms, leading to a significant increase in foam volume, further exacerbating surface pollution and visual unappealing conditions, and hindering the use of the treatment process. Utility Model Content

[0004] The purpose of this invention is to provide a defoaming device for sedimentation tanks, which can prevent the generation of a large amount of yellow-green foam on the surface of flocculation tanks and horizontal sedimentation tanks during the sewage treatment process when coagulants such as polyaluminum chloride are added. This is especially problematic during the spring and summer when algae blooms are high, as the algae and flocs generated by the coagulants combine and float to the surface, further increasing the amount and persistence of foam.

[0005] This utility model provides a defoaming device for a sedimentation tank, including a sedimentation tank body. A cleaning component is provided on the left side surface of the sedimentation tank body. The cleaning component includes a first water pump. The outlet end of the first water pump is connected to a transmission pipe. The right end of the transmission pipe extends into the inner cavity of the sedimentation tank body. Several rotating nozzles are installed at the bottom of the inner cavity of the sedimentation tank body, and the surface of the rotating nozzles is connected to the surface of the transmission pipe. Mounting boxes are fixedly connected to both the front and rear sides of the sedimentation tank body.

[0006] In one specific implementation, protective boxes are fixedly connected to the front and rear sides of the bottom of the sedimentation tank body, and a rotating rod is rotatably connected to the inner cavity of the protective box.

[0007] In one specific implementation, the inner cavity of the mounting box is rotatably connected to several operating rods, with one end of each operating rod penetrating into the inner cavity of the protective box.

[0008] In one specific implementation, the surface of the rotating rod and one end of the running rod are respectively connected to two bevel gears, and the two bevel gears mesh with each other.

[0009] In one specific implementation, the top of the rotating rod extends to the outside of the top of the protective box and is fixedly connected to a rotating disk, the surface of which is fixedly connected with several push plates.

[0010] In one specific implementation, a long rod is rotatably connected to the right side of the inner cavity of the mounting box, and a first motor is installed in the inner cavity of the mounting box, with the output shaft of the first motor connected to the front end of the long rod.

[0011] In one specific implementation, the surfaces of the long rod and the running rod are respectively fitted with a plurality of first pulleys, and the plurality of first pulleys are connected by belt drive.

[0012] In one specific implementation, positioning plates are fixedly connected to both the left and right sides of the sedimentation tank body, and a connecting rod is rotatably connected to the surface of the positioning plate, with one end of the connecting rod extending through to the outside of the positioning plate.

[0013] In one specific implementation, storage boxes are fixedly connected to both the front and rear sides of the mounting box. A second motor is installed inside the storage box. The output shaft connecting rod of the second motor is connected to a second pulley, and the two second pulleys are connected by belt drive.

[0014] In one specific implementation, the inner cavity of the connecting rod is connected to a flexible hose, and the surface of the flexible hose is connected to several spray heads. Storage tanks are fixedly connected to the front and left surfaces of the sedimentation tank body. A second water pump is installed in the inner cavity of the storage tank. The outlet of the second water pump is connected to one end of the flexible hose, and the inlet of the second water pump is connected to the surface of the transmission pipeline.

[0015] The beneficial effects of this application are as follows: By incorporating a cleaning component, not only can surface foam be effectively dispersed and removed, but the foam treatment effect can also be further optimized during operation by vibrating the water surface. While dispersing the foam, the cleaning component continuously vibrates the water surface. This vibration not only prevents newly formed foam from re-aggregating but also guides the dispersed foam to move in a designated direction. With the continuous vibration of the water surface, the foam is gradually pushed towards the area near the rotating nozzle. The rotating nozzle plays a crucial role in this process, further concentrating and removing the foam through water jets, ensuring a more thorough treatment effect. The cleaning component not only effectively disperses and removes surface foam but also makes foam treatment more concentrated and efficient, ensuring the sensory effects and treatment quality of the water. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a top view of the overall structure of an embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the disassembled installation box structure according to an embodiment of the present utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the long rod structure according to an embodiment of the present utility model;

[0021] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged structural diagram at point A in the middle;

[0022] Figure 6 This is a three-dimensional schematic diagram of the rotating rod structure according to an embodiment of the present utility model;

[0023] Figure 7 This is a three-dimensional schematic diagram of the connecting rod structure according to an embodiment of the present utility model;

[0024] Figure 8 This is a three-dimensional side view of the connecting rod structure according to an embodiment of the present utility model.

[0025] Icons: 1. Sedimentation tank body; 2. Cleaning components; 21. First water pump; 22. Transmission pipeline; 23. Rotary nozzle; 24. Mounting box; 25. Protective box; 26. Rotating rod; 27. Running rod; 28. Bevel gear; 29. ​​Rotary disc; 210. Push plate; 211. Long rod; 212. First motor; 213. First pulley; 214. Positioning plate; 215. Connecting rod; 216. Storage box; 217. Second motor; 218. Second pulley; 219. Hose; 220. Spray head; 221. Storage box; 222. Second water pump. Detailed Implementation

[0026] In wastewater treatment, the addition of coagulants such as polyaluminum chloride generates a large amount of yellowish-green foam on the surface of the flocculation tank and the horizontal sedimentation tank. This is especially problematic during the peak algae bloom season in spring and summer, when algae combine with flocs formed by the coagulants and float to the surface, further increasing the quantity and persistence of the foam. Therefore, the inventors have developed a defoaming device for sedimentation tanks. By incorporating cleaning components, this device not only effectively disperses and removes surface foam but also prevents the accumulation of new foam through continuous surface vibration and guides the dispersed foam towards the vicinity of a rotating nozzle for concentrated treatment. The rotating nozzle further disperses and removes the foam using jets of water, ensuring thorough treatment, improving the sensory quality and overall treatment quality of the water, thereby addressing the aforementioned shortcomings.

[0027] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] Please refer to Figures 1 to 8This utility model provides a defoaming device for a sedimentation tank, including a sedimentation tank body 1. A cleaning component 2 is provided on the left side surface of the sedimentation tank body 1. The cleaning component 2 includes a first water pump 21. The inlet of the first water pump 21 can be connected to an external water pipe to facilitate the introduction of a cleaning liquid for foam removal. The outlet of the first water pump 21 is connected to a transmission pipe 22. The right end of the transmission pipe 22 penetrates into the inner cavity of the sedimentation tank body 1 and is rotatably connected to the right side of the inner cavity of the sedimentation tank body 1. The area of ​​the transmission pipe 22 in contact with the sedimentation tank body 1 is sealed. Several rotating nozzles 23 are installed at the bottom of the inner cavity of the sedimentation tank body 1, and the surface of the rotating nozzles 23 is in communication with the surface of the transmission pipe 22. Mounting boxes 24 are fixedly connected to both the front and rear sides of the sedimentation tank body 1. Protective boxes 25 are fixedly connected to the front and rear sides of the bottom of the sedimentation tank body 1. A rotating rod 26 is rotatably connected to the inner cavity of the protective box 25. Several operating rods 27 are rotatably connected to the inner cavity of the mounting box 24. One end of the several operating rods 27 passes through the inner cavity of the protective box 25. The area of ​​the operating rod 27 in contact with the protective box 25 is sealed. Two bevel teeth 28 are respectively connected to the surface of the rotating rod 26 and one end of the operating rod 27, and the two bevel teeth 28 mesh with each other. The top of the rotating rod 26 passes through to the outside of the top of the protective box 25 and is fixedly connected to a rotating disk 29. The area of ​​the rotating rod 26 in contact with the protective box 25 is sealed. Several push plates 210 are fixedly connected to the surface of the rotating disk 29. The push plates 210 are provided with inclined surfaces to facilitate the pushing of foam or impurities on the water surface for easy cleaning.

[0029] Please refer to Figures 2 to 8A long rod 211 is rotatably connected to the right side of the inner cavity of the mounting box 24. A first motor 212 is installed inside the mounting box 24. The output shaft of the first motor 212 is connected to the front end of the long rod 211. Several first pulleys 213 are respectively sleeved on the surfaces of the long rod 211 and the running rod 27, and the several first pulleys 213 are connected by belt drive. Positioning plates 214 are fixedly connected to both the left and right sides of the sedimentation tank body 1. A connecting rod 215 is rotatably connected to the surface of the positioning plate 214, and one end of the connecting rod 215 extends through to the outside of the positioning plate 214. Storage boxes 216 are fixedly connected to both the front and rear sides of the mounting box 24. A second motor 217 is installed in the inner cavity of 216. The output shaft connecting rod 215 of the second motor 217 is connected to a second pulley 218, and the two second pulleys 218 are connected by belt drive. A hose 219 is connected in the inner cavity of the connecting rod 215. Several spray heads 220 are connected to the surface of the hose 219. A storage tank 221 is fixedly connected to the front surface and the left surface of the sedimentation tank body 1. A second water pump 222 is installed in the inner cavity of the storage tank 221. The outlet end of the second water pump 222 is connected to one end of the hose 219, and the inlet end of the second water pump 222 is connected to the surface of the transmission pipe 22.

[0030] Specifically, when edge foam needs to be treated, the first motor 212 is activated first. This motor drives the long rod 211 to rotate, which in turn drives the first pulley 213 to rotate. The rotational power of the first pulley 213 is transmitted to the bevel gear 28 through several operating rods 27, causing the bevel gear 28 to mesh and rotate. This process ultimately causes the rotating rod 26 and the rotating disk 29 on it to rotate. The push plate 210 installed on the rotating disk 29 rotates accordingly, vibrating the water surface and pushing the foam into the spray range of the rotating nozzle 23 to eliminate the foam. For foam on the left and right edges of the sedimentation tank body 1, the second motor 217 is activated. This motor drives the second pulley 218 to rotate, and transmits the rotational force to the hose 219 through the connecting rod 215, causing it to rotate. The rotation of the hose 219 causes the spray head 220 to rotate and oscillate within a certain range. During this process, the second water pump 222 draws cleaning liquid from the transmission pipe 22 and delivers it through the hose 219 to the spray head 220 for spraying, thereby breaking up and removing the foam that flows back to the edge to ensure cleaning effect.

[0031] In summary, the working principle of the sedimentation tank surface defoaming device of this utility model embodiment is as follows: When foam on the surface of the sedimentation tank body 1 is to be removed, the first water pump 21 is used to connect external cleaning liquid into the transmission pipe 22, and then the transmission pipe 22 transmits it to the rotating nozzle 23. The rotating nozzle 23 sprays the cleaning liquid evenly on the surface of the sedimentation tank body 1. Then, for the edge foam, the cleaning component 2 is activated. The cleaning component 2 sprays and disperses the foam in other areas of the water surface to remove it, making it easy to use.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A defoaming device for a sedimentation tank surface, comprising a sedimentation tank body (1), characterized in that, A cleaning component (2) is provided on the left side surface of the sedimentation tank body (1). The cleaning component (2) includes a first water pump (21). The outlet end of the first water pump (21) is connected to a transmission pipe (22). The right end of the transmission pipe (22) extends into the inner cavity of the sedimentation tank body (1). Several rotating nozzles (23) are installed at the bottom of the inner cavity of the sedimentation tank body (1), and the surface of the rotating nozzles (23) is connected to the surface of the transmission pipe (22). Installation boxes (24) are fixedly connected to both the front and rear sides of the sedimentation tank body (1).

2. The defoaming device for a sedimentation tank surface according to claim 1, characterized in that, Protective boxes (25) are fixedly connected to the front and rear sides of the bottom of the inner cavity of the sedimentation tank body (1), and a rotating rod (26) is rotatably connected to the inner cavity of the protective box (25).

3. The defoaming device for a sedimentation tank surface according to claim 2, characterized in that, The inner cavity of the mounting box (24) is rotatably connected to several operating rods (27), and one end of each operating rod (27) extends into the inner cavity of the protective box (25).

4. The defoaming device for a sedimentation tank according to claim 3, characterized in that, The surface of the rotating rod (26) and one end of the running rod (27) are respectively connected to two bevel gears (28), and the two bevel gears (28) mesh with each other.

5. The defoaming device for a sedimentation tank according to claim 4, characterized in that, The top end of the rotating rod (26) extends to the outside of the top of the protective box (25) and is fixedly connected to a rotating disk (29). Several push plates (210) are fixedly connected to the surface of the rotating disk (29).

6. The defoaming device for a sedimentation tank according to claim 5, characterized in that, A long rod (211) is rotatably connected to the right side of the inner cavity of the mounting box (24). A first motor (212) is installed in the inner cavity of the mounting box (24). The output shaft of the first motor (212) is connected to the front end of the long rod (211).

7. A defoaming device for a sedimentation tank surface according to claim 6, characterized in that, The surfaces of the long rod (211) and the running rod (27) are respectively fitted with a number of first pulleys (213), and the number of first pulleys (213) are connected by belt drive.

8. The defoaming device for a sedimentation tank according to claim 7, characterized in that, The sedimentation tank body (1) is fixedly connected to both the left and right sides with positioning plates (214). A connecting rod (215) is rotatably connected to the surface of the positioning plate (214), and one end of the connecting rod (215) extends through to the outside of the positioning plate (214).

9. A defoaming device for a sedimentation tank according to claim 8, characterized in that, Storage boxes (216) are fixedly connected to both the front and rear sides of the mounting box (24). A second motor (217) is installed in the inner cavity of the storage box (216). The output shaft connecting rod (215) of the second motor (217) is connected to a second pulley (218) respectively, and the two second pulleys (218) are connected by belt drive.

10. A defoaming device for a sedimentation tank according to claim 9, characterized in that, The inner cavity of the connecting rod (215) is connected to a hose (219), and the surface of the hose (219) is connected to several spray heads (220). The front and left surfaces of the sedimentation tank body (1) are fixedly connected to a storage tank (221). The inner cavity of the storage tank (221) is equipped with a second water pump (222). The outlet of the second water pump (222) is connected to one end of the hose (219), and the inlet of the second water pump (222) is connected to the surface of the transmission pipe (22).

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