An oil removal bellows for a grit chamber

Abstract

The application relates to an oil removal telescopic pipe for a sand trap, relates to the technical field of sewage oil removal, and comprises an oil outlet pipe, the oil outlet pipe is installed in the sand trap, a sliding pipe is arranged on the oil outlet pipe, one end of the sliding pipe penetrates into the oil outlet pipe, and the other end of the sliding pipe is formed with an oil outlet; a cover plate covers the sliding pipe close to the oil outlet, the cover plate is used for blocking sewage from flowing into the sliding pipe through the oil outlet; a lifting assembly is installed on the oil outlet pipe, the lifting assembly is used for driving the sliding pipe to lift on the oil outlet pipe; and an opening and closing assembly is installed on one side of the oil outlet pipe, the opening and closing assembly is used for driving the cover plate to open or close on the sliding pipe. The telescopic pipe can adapt to water level change and reduce floating oil on the sand trap.

Description

Technical Field

[0001] This application relates to the field of wastewater oil removal technology, and in particular to an oil removal telescopic pipe for grit chambers. Background Technology

[0002] Currently, grit chambers are pretreatment facilities in wastewater treatment, primarily used to remove inorganic particles (such as sand and slag) from wastewater to prevent them from damaging equipment, clogging pipes, or affecting subsequent processes. Common types include horizontal flow (relying on gravity settling), aerated flow (using cyclone separation of organic matter), and cyclone flow (centrifugal settling), ensuring efficient grit removal by controlling flow rate and residence time. Their function is to protect subsequent treatment units and reduce sludge impurities. They are widely used in urban sewage, industrial wastewater, and rainwater treatment systems, complementing bar screens (intercepting large debris) and primary sedimentation tanks (removing suspended organic matter).

[0003] Grit chambers, as pretreatment units, are mainly used to remove inorganic particles from wastewater. However, in actual operation, oily wastewater (such as wastewater from catering and food processing industries) often causes oil to accumulate on the surface of the chamber. Excessive oil may interfere with sedimentation or clog the equipment. Traditional grit chambers lack efficient methods for removing floating oil.

[0004] Therefore, there is an urgent need to provide an oil removal device for sedimentation tanks that can adapt to changes in water level and remove floating oil. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an oil removal telescopic pipe for a sedimentation tank, which solves the technical problems that traditional sedimentation tanks do not have an oil removal function and that manual oil removal is inefficient.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An oil removal telescopic pipe for a grit chamber includes: an oil outlet pipe installed inside the grit chamber, a sliding pipe provided on the oil outlet pipe, one end of the sliding pipe extending into the oil outlet pipe, and the other end of the sliding pipe forming an oil discharge port; a cover plate covering the sliding pipe near the oil discharge port, the cover plate being used to prevent sewage from flowing into the sliding pipe through the oil discharge port; a lifting assembly installed on the oil outlet pipe, the lifting assembly being used to drive the sliding pipe to move up and down on the oil outlet pipe; and an opening and closing assembly installed on one side of the oil outlet pipe, the opening and closing assembly being used to drive the cover plate to open or close on the sliding pipe.

[0008] Furthermore, an adjusting plate is formed on the slide tube, and the lifting assembly includes a lifting screw. One end of the lifting screw is rotatably mounted on the oil outlet pipe, and the other end passes through the adjusting plate. The lifting screw is threadedly connected to the adjusting plate. A drive motor is provided on the oil outlet pipe, and a drive gear is mounted on the drive motor. A driven gear is mounted on the lifting screw, and the drive gear meshes with the driven gear.

[0009] Furthermore, a guide rod is provided on the oil outlet pipe, one end of which is connected to the oil outlet pipe and the other end passes through the adjusting plate, and the adjusting plate slides in cooperation with the guide rod.

[0010] Furthermore, the opening and closing assembly includes an adjusting seat, on which a rotating wheel is rotatably mounted, and an adjusting screw is rotatably mounted on the adjusting seat. One end of the adjusting screw passes through the rotating wheel and is threadedly connected to the rotating wheel, while the other end of the adjusting screw extends toward the side closer to the cover plate.

[0011] Furthermore, an adjusting rod is provided at one end of the adjusting screw, and a connecting rod is provided on the cover plate. One end of the connecting rod is connected to the cover plate, and the other end passes through the adjusting rod. A support spring is provided between the connecting rod and the adjusting rod, and the support spring abuts against the adjusting rod and the connecting rod.

[0012] Furthermore, a guide slope is formed on the side of the slide tube near the oil outlet, and the guide slope is inclined to the inside of the slide tube.

[0013] Furthermore, a sealing ring is provided between the cover plate and the slide tube, and the sealing ring abuts against the cover plate and the slide tube.

[0014] In summary, this application includes at least one of the following beneficial technical effects of the oil removal expansion pipe for grit chambers:

[0015] 1. When in use, the lifting component lowers one end of the sliding tube below the oil layer, and then the opening and closing component opens the cover plate from the oil drain port of the sliding tube. Then, the oil sludge suspended on the water surface flows through the oil drain port on the sliding tube into the oil outlet pipe. Finally, the oil sludge is discharged through the oil outlet pipe. The telescopic tube can adapt to changes in water level and reduce the floating oil on the sedimentation tank.

[0016] 2. The lifting screw is driven by a drive motor to rotate, and the lifting screw is threadedly connected to the adjusting plate on the slide tube. The guide rod also improves the stability of the slide tube sliding on the oil outlet pipe.

[0017] 3. By adjusting the rod and connecting rod on the adjusting seat, as well as adjusting the screw and rotating wheel, the ease of opening and closing the cover plate on the slide tube is improved. Attached Figure Description

[0018] Figure 1 This application mainly provides a schematic diagram of the overall structure of an oil removal telescopic pipe for a grit chamber;

[0019] Figure 2 This is a schematic diagram of the main oil outlet pipe structure provided in this application;

[0020] Figure 3 This is a schematic diagram of the sliding tube structure mainly provided in this application;

[0021] Figure 4 This is a schematic diagram of the main adjustment seat structure provided in this application.

[0022] Reference numerals: 1. Oil outlet pipe; 2. Slide pipe; 21. Oil drain port; 22. Cover plate; 23. Adjusting plate; 24. Guide slope; 25. Sealing ring; 3. Lifting assembly; 31. Lifting screw; 32. Drive motor; 33. Drive gear; 34. Driven gear; 35. Guide rod; 4. Opening and closing assembly; 41. Adjusting seat; 411. Slide groove; 42. Rotating wheel; 43. Adjusting screw; 431. Sliding block; 44. Adjusting rod; 45. Connecting rod; 46. Support spring. Detailed Implementation

[0023] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0025] This application discloses an oil removal telescopic pipe for a sedimentation tank.

[0026] Reference Figures 1-2 An oil removal telescopic pipe for a sedimentation tank includes an oil outlet pipe 1 installed inside the sedimentation tank. A sliding tube 2 is slidably mounted on the oil outlet pipe 1, with an oil discharge port 21 formed at one end. A lifting assembly 3 is provided on the oil outlet pipe 1, driving the sliding tube 2 to rise and fall on the oil outlet pipe 1. A cover plate 22 is provided on the side of the sliding tube 2 near the oil discharge port 21, and an opening and closing assembly 4 is provided on one side of the oil outlet pipe 1. In use, the opening and closing assembly 4 controls the opening or closing of the cover plate 22 on the sliding tube 2.

[0027] Reference Figure 3An oil outlet pipe 1 is installed inside the sedimentation tank, with one end connected to the outlet of the sedimentation tank. One end of a sliding pipe 2 is inserted into the oil outlet pipe 1, and the sliding pipe 2 is slidably mounted on the oil outlet pipe 1. To improve the ease of sliding the sliding pipe 2 on the oil outlet pipe 1, an adjusting plate 23 is installed on the sliding pipe 2. The adjusting plate 23 is circular in shape, and its axis is coaxial with the axis of the sliding pipe 2. In use, the adjusting plate 23 is welded to the sliding pipe 2. The lifting assembly 3 includes a lifting screw 31, one end of which is rotatably mounted on the oil outlet pipe 1, and the other end passes through the adjusting plate 23. The lifting screw 31 is threadedly connected to the adjusting plate 23. As the lifting screw 31 rotates, the sliding pipe 2 slides along the axial direction of the oil outlet pipe 1.

[0028] To improve the ease of rotation of the lifting screw 31, a drive motor 32 is installed on the oil outlet pipe 1. The drive motor 32 is horizontally mounted outside the oil outlet pipe 1. During use, a waterproof cover is installed on the oil outlet pipe 1, and the drive motor 32 is installed inside the waterproof cover, thereby reducing the impact of sewage in the sedimentation tank on the operation of the drive motor 32. Furthermore, one end of the output shaft of the drive motor 32 passes into the oil outlet pipe 1, and a drive gear 33 is installed on one end of the output shaft of the drive motor 32. A driven gear 34 is installed on the lifting screw 31, and the drive gear 33 meshes with the driven gear 34. During use, the drive motor 32 drives the lifting screw 31 to rotate through the drive gear 33 and the driven gear 34.

[0029] A guide rod 35 is provided on the oil outlet pipe 1. One end of the guide rod 35 is connected to the oil outlet pipe 1, and the other end passes through the adjusting plate 23. The adjusting plate 23 and the guide rod 35 slide in cooperation. When the slide tube 2 slides on the oil outlet pipe 1, the guide rod 35 guides the slide tube 2, thereby improving the stability of the slide tube 2 sliding in the oil outlet pipe 1.

[0030] Reference Figure 4 When the grit chamber is in use, the liquid level is usually higher than the oil outlet pipe 1. To reduce the discharge of wastewater from the oil outlet pipe 1 during oil discharge, a cover plate 22 is installed on the oil outlet 21 of the slide pipe 2. Furthermore, the opening and closing assembly 4 includes an adjusting seat 41, which is installed on the side of the grit chamber near the oil outlet pipe 1. A rotating wheel 42 is rotatably mounted on the adjusting seat 41, and an adjusting screw 43 is also provided on the adjusting seat 41. One end of the adjusting screw 43 passes through the rotating wheel 42 and is threadedly connected to it. The other end extends towards the side near the cover plate 22. In addition, a groove 411 is formed along the axis of the adjusting screw 43 on the adjusting seat 41. A slider 431 is provided on the side of the adjusting screw 43 near the cover plate 22. One end of the slider 431 is connected to the adjusting screw 43, and the other end slides and engages with the slider 431.

[0031] Furthermore, an adjusting rod 44 is provided at one end of the adjusting screw 43 near the cover plate 22. The axis of the adjusting rod 44 is coaxial with that of the adjusting screw 43, and one end of the adjusting rod 44 is connected to the adjusting screw 43, while the other end extends towards the cover plate 22. A connecting rod 45 is provided on the cover plate 22. One end of the connecting rod 45 is connected to the cover plate 22, and the other end passes through the connecting rod 45, with the connecting rod 45 and the adjusting rod 44 slidingly engaged. In addition, a support spring 46 is provided between the adjusting rod 44 and the connecting rod 45, with both ends of the support spring 46 connected to the adjusting rod 44 and the connecting rod 45, respectively.

[0032] In use, the oil outlet pipe 1 and the sliding pipe 2 are immersed in the sedimentation tank. When needed, the drive motor 32 drives the sliding pipe 2 to rise, moving it out from the top of the sedimentation tank. As the sliding pipe 2 rises, the support spring 46 is compressed. After the sliding pipe 2 rises from the sedimentation tank, the operator observes the oil stains on the cover plate 22 to determine the thickness of the oil stains. Then, the operator drives the sliding roller to descend again, moving the top of the sliding pipe 2 below the oil stain layer. After the sliding pipe 2 moves, the operator manually adjusts the rotating wheel 42. As the rotating wheel 42 rotates, the adjusting screw 43 lifts the cover plate 22, thereby opening the oil outlet 21 of the sliding pipe 2, allowing the oil stains at the top of the sedimentation tank to flow into the sliding pipe 2.

[0033] To improve the oil removal efficiency of the slide pipe 2, a guide slope 24 is formed at the end of the slide pipe 2 away from the oil outlet pipe 1. The guide slope 24 is inclined towards the inside of the slide pipe 2. During use, as the guide slope 24 guides the oil, the efficiency of the oil flowing into the slide pipe 2 is improved. Furthermore, after the oil at the top of the sedimentation tank is discharged, the rotating wheel 42 and the adjusting screw 43 drive the cover plate 22 to press against the oil outlet 21 of the slide pipe 2.

[0034] To improve the sealing between the cover plate 22 and the slide pipe 2, a sealing ring 25 is provided on the cover plate 22, and the sealing ring 25 is pressed tightly between the cover plate 22 and the oil outlet pipe 1. This reduces the amount of treated water in the sedimentation tank that is discharged from the oil outlet 21 of the slide pipe 2.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An oil removal telescopic pipe for a grit chamber, characterized in that, include: An oil outlet pipe (1) is installed in a sedimentation tank. A sliding pipe (2) is provided on the oil outlet pipe (1). One end of the sliding pipe (2) is inserted into the oil outlet pipe (1), and the other end of the sliding pipe (2) forms an oil outlet (21). A cover plate (22) covers the slide pipe (2) near the oil outlet (21) and is used to prevent sewage from flowing into the slide pipe (2) through the oil outlet (21); A lifting assembly (3) is installed on the oil outlet pipe (1) and is used to drive the slide pipe (2) to move up and down on the oil outlet pipe (1). An opening and closing assembly (4) is installed on one side of the oil outlet pipe (1) and is used to drive the cover plate (22) to open or close on the slide pipe (2).

2. The oil removal telescopic pipe for a grit chamber according to claim 1, characterized in that, An adjusting plate (23) is formed on the slide tube (2). The lifting assembly (3) includes a lifting screw (31). One end of the lifting screw (31) is rotatably mounted on the oil outlet pipe (1), and the other end passes through the adjusting plate (23). The lifting screw (31) is threadedly connected to the adjusting plate (23). A drive motor (32) is provided on the oil outlet pipe (1). A drive gear (33) is installed on the drive motor (32). A driven gear (34) is installed on the lifting screw (31). The drive gear (33) meshes with the driven gear (34).

3. The oil removal telescopic pipe for a grit chamber according to claim 2, characterized in that, A guide rod (35) is provided on the oil outlet pipe (1). One end of the guide rod (35) is connected to the oil outlet pipe (1), and the other end passes through the adjusting plate (23). The adjusting plate (23) and the guide rod (35) slide together.

4. The oil removal telescopic pipe for a grit chamber according to claim 1, characterized in that, The opening and closing assembly (4) includes an adjusting seat (41), on which a rotating wheel (42) is rotatably mounted, and an adjusting screw (43) is rotatably mounted on the adjusting seat (41). One end of the adjusting screw (43) passes through the rotating wheel (42) and is threadedly connected to the rotating wheel (42). The other end of the adjusting screw (43) extends toward the side closer to the cover plate (22).

5. The oil removal telescopic pipe for a grit chamber according to claim 4, characterized in that, An adjusting rod (44) is provided at one end of the adjusting screw (43), and a connecting rod (45) is provided on the cover plate (22). One end of the connecting rod (45) is connected to the cover plate (22), and the other end is inserted into the adjusting rod (44). A support spring (46) is provided between the connecting rod (45) and the adjusting rod (44), and the support spring (46) abuts against the adjusting rod (44) and the connecting rod (45).

6. The oil removal telescopic pipe for a grit chamber according to claim 1, characterized in that, The slide tube (2) has a guide slope (24) formed on the side near the oil outlet (21), and the guide slope (24) is inclined to the inside of the slide tube (2).

7. The oil removal telescopic pipe for a grit chamber according to claim 6, characterized in that, A sealing ring (25) is provided between the cover plate (22) and the slide tube (2), and the sealing ring (25) abuts against the cover plate (22) and the slide tube (2).

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