A sampling device for a wastewater plant using the cast process

Abstract

This utility model belongs to the field of sampling technology for CAST process wastewater treatment plants, specifically a sampling device for CAST process wastewater treatment plants. It includes a base with a support column rotatably mounted on the top, and a first rack slidably mounted on the top of the support column. It also includes a collection mechanism for sampling wastewater. The collection mechanism includes a threaded rod threadedly mounted on the top of the first rack. A top plate is rotatably connected to the top of the threaded rod, and a sliding rod is fixedly connected to the bottom of the top plate. The sliding rod is slidably connected to the first rack. A third motor output shaft drives a pulley to rotate. After belt transmission, the pulley threaded to the threaded rod, in conjunction with the sliding rod, limits the movement of the threaded rod, causing the threaded rod to move downwards with the collection box. After the collection box contacts the water surface, the wastewater pushes up the rubber baffle, and the wastewater enters the inner cavity of the collection box through the sampling hole. After the inner cavity of the collection box is filled with wastewater, the collection box is moved upwards to complete the wastewater sampling.

Description

Technical Field

[0001] This utility model belongs to the field of sampling technology for wastewater treatment plants using the CAST process, specifically a sampling device for wastewater treatment plants using the CAST process. Background Technology

[0002] The CAST (Circulating Activated Sludge) process is an improved SBR (Sequencing Batch Reactor) technology widely used in wastewater treatment plants. Its core feature is the integration of biological reaction, sedimentation, and drainage functions into a single reaction tank. Through periodic circulation (a typical cycle is 4 hours, including influent-aeration, sedimentation, drainage, and idle periods), it achieves highly efficient nitrogen and phosphorus removal. For water quality monitoring of this process, dedicated sampling devices must meet the requirements of periodic, multi-point, and stratified sampling, while also adapting to changes in water level and sludge concentration.

[0003] A search revealed that patent document CN223154565U discloses a sampling device for removing impurities from urban sewage samples. The device includes a sampling bucket with a cover plate fixedly connected to the top. A gear assembly is provided in the lower middle part of the cover plate. An exhaust hole is fixedly connected to the left end of the cover plate. Water inlet pipes are fixedly connected to both the front and rear sides of the sampling bucket. A sphere is fixedly connected to the opposite end of each water inlet pipe. Multiple water inlet holes are provided on the outer side of each sphere. A baffle is fixedly connected to the upper part of the inner wall of the sampling bucket at the position corresponding to the water inlet pipe.

[0004] In the above design, the scraper is driven to rotate by the cooperation of the second bevel gear and the first bevel gear, and the sphere is used for cleaning to prevent impurities from clogging the water inlet and affecting the collection of sewage. The telescopic rod can be extended and retracted to drive the sampling bucket to facilitate the collection of sewage from a distance. The sphere can collect sewage and block impurities from the outside.

[0005] In practical use, when it is necessary to sample sewage at different depths, the above design is difficult to distinguish and collect.

[0006] Therefore, a sampling device for wastewater treatment plants using the CAST process is proposed to address the above problems. Utility Model Content

[0007] To overcome the shortcomings of existing technologies and solve existing problems, we propose a sampling device for wastewater treatment plants using the CAST process.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a sampling device for wastewater treatment plant using CAST process according to this utility model includes a base, a support column rotatably installed on the top of the base, and a first rack slidably installed on the top of the support column; It also includes collection facilities for taking samples of wastewater; The collection mechanism includes a threaded rod, which is threadedly installed on the top of a first rack. A top plate is rotatably connected to the top of the threaded rod, and a sliding rod is fixedly connected to the bottom of the top plate. The sliding rod is slidably connected to the first rack. A collection box is fixedly connected to the bottom of the threaded rod. Several sampling holes are slidably installed at the bottom of the collection box. A sliding column is slidably installed at the bottom of the collection box, and a rubber baffle is fixedly connected to the top of the sliding column.

[0009] Preferably, a first motor is fixedly installed in the inner cavity of the base, the output shaft of the first motor is fixedly connected to the support column, and a first groove is formed on the outer surface of the support column.

[0010] Preferably, a slip ring is slidably installed in the inner cavity of the first groove, a support rod is rotatably connected to one side of the slip ring, an installation frame is fixedly installed on the top of the support column, and two second grooves are opened in the inner cavity of the installation frame, with rollers rotatably installed on the inner surface of the second grooves.

[0011] Preferably, a second motor is fixedly installed on one side of the mounting frame, and a first gear is fixedly connected to the output shaft of the second motor. The first gear meshes with a first rack. Limit frames are fixedly installed on both sides of the mounting frame, and the first rack is slidably installed in the inner cavity of the limit frame.

[0012] Preferably, a second gear is fixedly connected to one side of the first gear, a connecting block is fixedly connected to one side of the slip ring, and a second rack is slidably installed in the inner cavity of the connecting block, with the second rack meshing with the second gear.

[0013] Preferably, one end of the support rod is rotatably mounted on the bottom of the first rack, and two pulleys are rotatably mounted on the top of the first rack. The two pulleys are driven by a belt, and a third motor is fixedly connected to the top of one of the pulleys. The third motor is fixedly mounted on the top of the first rack.

[0014] The beneficial effects of this utility model are: 1. This utility model provides a sampling device for a wastewater treatment plant using the CAST process. The output shaft of the second motor drives the first gear and the second gear to rotate. The first gear drives the first rack to slide in the inner cavity of the mounting frame and the limiting frame. The second gear drives the second rack to slide in the inner cavity of the connecting block. At the same time, the second rack, along with the slip ring, slides along the inner surface of the first groove. This allows the support rod to rotate so that the support rod can continuously support the first rack, increasing the load-bearing capacity of the extended first rack.

[0015] 2. This utility model provides a sampling device for wastewater treatment plants using the CAST process. The output shaft of a third motor drives a pulley to rotate. After belt transmission, the pulley, which is threadedly connected to the threaded rod, works with a sliding rod to limit the threaded rod, allowing the threaded rod to move the collection box downwards. After the collection box contacts the water surface, the wastewater will push up the rubber baffle. The wastewater enters the inner cavity of the collection box through the sampling hole. After the inner cavity of the collection box is filled with wastewater, the collection box is moved upwards to complete the wastewater sampling. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the slip ring mounting structure of this utility model; Figure 3 This is a schematic diagram of the mounting frame structure of this utility model; Figure 4 This is a schematic diagram of the second rack connection structure of this utility model; Figure 5 This is a schematic diagram of the threaded rod installation structure of this utility model; Figure 6 This is a schematic diagram of the collection box structure of this utility model.

[0017] Legend: 1. Base; 2. Support column; 21. First motor; 22. First groove; 23. Slip ring; 24. Support rod; 25. Mounting frame; 251. Second groove; 252. Roller; 26. Limiting frame; 261. First rack; 27. Second motor; 28. First gear; 29. ​​Second gear; 3. Connecting block; 31. Second rack; 4. Pulley; 41. Belt; 42. Third motor; 43. Threaded rod; 44. Sliding rod; 45. Top plate; 46. Collection box; 47. Sampling hole; 48. Sliding column; 49. Rubber baffle. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] Please see Figures 1 to 6 This utility model provides a sampling device for a CAST process wastewater treatment plant, including a base 1, a support column 2 rotatably mounted on the top of the base 1, and a first rack 261 slidably mounted on the top of the support column 2; it also includes a collection mechanism for sampling wastewater; the collection mechanism includes a threaded rod 43, which is threadedly mounted on the top of the first rack 261, a top plate 45 rotatably connected to the top of the threaded rod 43, a sliding rod 44 fixedly connected to the bottom of the top plate 45, the sliding rod 44 being slidably connected to the first rack 261, a collection box 46 fixedly connected to the bottom of the threaded rod 43, a plurality of sampling holes 47 slidably mounted on the bottom of the collection box 46, a sliding column 48 slidably mounted on the bottom of the collection box 46, and a rubber baffle 49 fixedly connected to the top of the sliding column 48.

[0021] Existing wastewater sampling devices have difficulty sampling and testing wastewater at different depths, making it difficult for staff to understand the treatment status of wastewater at different depths.

[0022] In use, the first rack 261 slides on the top of the support column 2, allowing it to move the threaded rod 43 to different positions. After the threaded rod 43 is moved to a predetermined position, it can be rotated to move up and down. During wastewater sampling, the threaded rod 43 moves the collection box 46 downwards. After the bottom of the collection box 46 contacts the water surface, the wastewater passing through the sampling hole 47 pushes up the rubber baffle 49, allowing the wastewater to enter the inner cavity of the collection box 46 through the sampling hole 47. After sampling, the threaded rod 43 moves the collection box 46 upwards. At this time, the water in the inner cavity of the collection box 46 has inertia and will press the rubber baffle 49 downwards, causing the rubber baffle 49 to adhere tightly to the bottom wall of the collection box 46. This prevents wastewater from flowing out through the sampling hole 47. Several ventilation holes are provided on the top of the collection box 46. During the upward movement of the collection box 46, since the inner cavity of the collection box 46 is already filled with wastewater, no more wastewater will enter the inner cavity of the collection box 46.

[0023] Furthermore, such as Figure 2 As shown, a first motor 21 is fixedly installed in the inner cavity of the base 1. The output shaft of the first motor 21 is fixedly connected to the support column 2. A first groove 22 is provided on the outer surface of the support column 2.

[0024] When using this utility model, since it is necessary to sample sewage from different locations, the horizontal position of the collection box 46 needs to be adjusted. During use, the output shaft of the first motor 21 drives the support column 2 to rotate, and the support column 2 further drives the first rack 261 to move, thereby achieving the purpose of adjusting the position of the collection box 46.

[0025] Furthermore, such as Figures 2 to 4 As shown, a slip ring 23 is slidably installed in the inner cavity of the first groove 22. A support rod 24 is rotatably connected to one side of the slip ring 23. An installation frame 25 is fixedly installed on the top of the support column 2. Two second grooves 251 are opened in the inner cavity of the installation frame 25. Rollers 252 are rotatably installed on the inner surface of the second grooves 251. A second motor 27 is fixedly installed on one side of the mounting frame 25. A first gear 28 is fixedly connected to the output shaft of the second motor 27. The first gear 28 meshes with the first rack 261. Limit frames 26 are fixedly installed on both sides of the mounting frame 25. The first rack 261 is slidably installed in the inner cavity of the limit frame 26. A second gear 29 is fixedly connected to one side of the first gear 28, and a connecting block 3 is fixedly connected to one side of the slip ring 23. A second rack 31 is slidably installed in the inner cavity of the connecting block 3, and the second rack 31 meshes with the second gear 29.

[0026] In use, to further adjust the horizontal position of the collection box 46, the output shaft of the second motor 27 drives the first gear 28 to rotate, and the first gear 28 also drives the second gear 29 to rotate. The first gear 28 can drive the first rack 261 to slide in the inner cavity of the mounting frame 25 and the limiting frame 26. The limiting frame 26 can make the first rack 261 slide more smoothly, and the bottom of the first rack 261 contacts the roller 252 and drives the roller 252 to rotate. The second gear 29 can drive the second rack 31 to slide in the inner cavity of the connecting block 3. The connecting block 3 further drives the slip ring 23 to slide along the inner surface of the first groove 22. In use, the slip ring 23 and the first rack 261 are connected to the support rod 24, and the support rod 24 is used to support the first rack 261, so that the first rack 261 can have a greater load-bearing capacity.

[0027] Furthermore, such as Figure 5 As shown, one end of the support rod 24 is rotatably mounted on the bottom of the first rack 261, and two pulleys 4 are rotatably mounted on the top of the first rack 261. The two pulleys 4 are driven by a belt 41, and a third motor 42 is fixedly connected to the top of one of the pulleys 4. The third motor 42 is fixedly mounted on the top of the first rack 261.

[0028] In use, the output shaft of the third motor 42 drives the pulley 4 to rotate, and the two pulleys 4 start to rotate through the belt 41. The threaded rod 43 passes through the pulley 4 and is threadedly connected to the pulley 4. This allows the vertical position of the threaded rod 43 to be adjusted, thereby achieving the purpose of sewage sampling.

[0029] Working principle: When the position of the collection box 46 needs to be adjusted, the output shaft of the second motor 27 drives the first gear 28 and the second gear 29 to rotate. The first gear 28 drives the first rack 261 to slide in the inner cavity of the mounting frame 25 and the limiting frame 26. The second gear 29 drives the second rack 31 to slide in the inner cavity of the connecting block 3. At the same time, the second rack 31, along with the slip ring 23, slides along the inner surface of the first groove 22. This allows the support rod 24 to rotate so that the support rod 24 can continuously support the first rack 261, increasing the load-bearing capacity of the extended first rack 261.

[0030] In use, the output shaft of the third motor 42 drives the pulley 4 to rotate. After being driven by the belt 41, the pulley 4, which is threadedly connected to the threaded rod 43, cooperates with the slide rod 44 to limit the threaded rod 43, which can cause the threaded rod 43 to move the collection box 46 downward. After the collection box 46 contacts the water surface, the sewage will push up the rubber baffle 49. The sewage enters the inner cavity of the collection box 46 through the sampling hole 47. After the inner cavity of the collection box 46 is filled with sewage, the collection box 46 is moved upward to complete the sewage sampling.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sampling device for a CAST process wastewater treatment plant, comprising a base (1), a support column (2) rotatably mounted on the top of the base (1), and a first rack (261) slidably mounted on the top of the support column (2). It also includes collection facilities for taking samples of wastewater; Its features are: The collection mechanism includes a threaded rod (43), which is threadedly installed on the top of a first rack (261). A top plate (45) is rotatably connected to the top of the threaded rod (43). A sliding rod (44) is fixedly connected to the bottom of the top plate (45). The sliding rod (44) is slidably connected to the first rack (261). A collection box (46) is fixedly connected to the bottom of the threaded rod (43). Several sampling holes (47) are slidably installed at the bottom of the collection box (46). A sliding column (48) is slidably installed at the bottom of the collection box (46). A rubber baffle (49) is fixedly connected to the top of the sliding column (48).

2. The sampling device for a CAST process wastewater treatment plant according to claim 1, characterized in that: The base (1) has a first motor (21) fixedly installed in its inner cavity. The output shaft of the first motor (21) is fixedly connected to the support column (2). The outer surface of the support column (2) has a first groove (22).

3. The sampling device for a CAST process wastewater treatment plant according to claim 2, characterized in that: A slip ring (23) is slidably installed in the inner cavity of the first groove (22). A support rod (24) is rotatably connected to one side of the slip ring (23). An installation frame (25) is fixedly installed on the top of the support column (2). Two second grooves (251) are opened in the inner cavity of the installation frame (25). A roller (252) is rotatably installed on the inner surface of the second groove (251).

4. The sampling device for a CAST process wastewater treatment plant according to claim 3, characterized in that: A second motor (27) is fixedly installed on one side of the mounting frame (25). The output shaft of the second motor (27) is fixedly connected to a first gear (28). The first gear (28) meshes with the first rack (261). Limit frames (26) are fixedly installed on both sides of the mounting frame (25). The first rack (261) is slidably installed in the inner cavity of the limit frame (26).

5. A sampling device for a CAST process wastewater treatment plant according to claim 4, characterized in that: The first gear (28) is fixedly connected to a second gear (29) on one side, and the slip ring (23) is fixedly connected to a connecting block (3) on one side. The connecting block (3) has a second rack (31) slidably installed in its inner cavity, and the second rack (31) meshes with the second gear (29).

6. A sampling device for a CAST process wastewater treatment plant according to claim 5, characterized in that: One end of the support rod (24) is rotatably mounted on the bottom of the first rack (261), and two pulleys (4) are rotatably mounted on the top of the first rack (261). The two pulleys (4) are driven by a belt (41), and a third motor (42) is fixedly connected to the top of one of the pulleys (4). The third motor (42) is fixedly mounted on the top of the first rack (261).

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