A sewage treatment grating machine

Abstract

The utility model relates to sewage treatment technical field discloses a sewage treatment grille machine, including support frame, be provided with intercepting unit on the support frame for intercepting sundries in sewage, still be provided with cleaning unit on the support frame, be located the top of intercepting unit, the cleaning unit includes reciprocating assembly, install base on the reciprocating assembly, the base is rotatably connected with no. The high -speed rotation of brush of synchronous drive no. In the process that intercepting unit continuously conveys sundries, rotates transmission assembly synchronous drive no. The first time can peel off the sundries such as hair, cloth strip, sticky class such as silt agglomerate that stick in harrow tooth gap, grille board surface fiber class, avoids sundries secondary drop back sewage pool, reduces the sundries content of subsequent filtration, sedimentation link.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater treatment bar screen. Background Technology

[0002] With the continued acceleration of urbanization and the expansion of industrial production in my country, the total amount of wastewater treated nationwide has been increasing rapidly year by year. According to relevant industry statistics, the total amount of urban wastewater treated nationwide exceeded 70 billion cubic meters in 2024, of which industrial wastewater accounted for more than 40% of the total wastewater treatment volume.

[0003] However, the core design focus of most mainstream bar screens on the market is still on optimizing the "interception" function, with insufficient attention paid to the cleaning and treatment of debris after interception. Existing bar screens have relatively simple cleaning structures, mostly using unidirectional scrapers or fixed-position spray devices. While these structures can remove some debris from the bar screen surface to a certain extent, they cannot achieve real-time synchronous cleaning with the interception unit, making it difficult to fundamentally solve the problem of residual fibrous and sticky debris. This leads to frequent "debris backflow" during operation. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a sewage treatment bar screen to solve the above-mentioned shortcomings in the prior art.

[0005] Technical solution: A sewage treatment bar screen includes a support frame, on which an interception unit is provided for intercepting debris in sewage, and a cleaning unit is also provided on the support frame above the interception unit; The cleaning unit includes a reciprocating assembly, a base is mounted on the reciprocating assembly, a first rotating shaft is rotatably connected to the base, and a number of brushes are equidistantly arranged on the first rotating shaft; The cleaning unit also includes a rotation transmission assembly for driving the No. 1 rotating shaft to rotate.

[0006] As a further description of the above technical solution: the support frame is also provided with a crushing unit located below the interception unit. The crushing unit includes a connecting seat, and two No. 3 rotating shafts are provided on the inner side of the connecting seat. Each of the two No. 3 rotating shafts is provided with a gear at its end, and the two gears are meshed and connected. Each of the three rotating shafts is also equipped with a shredding blade; Furthermore, a drive source is provided at the end of one of the gears to drive the third rotating shaft to rotate, preferably a servo motor.

[0007] As a further description of the above technical solution: the rotational transmission assembly includes a connecting shell disposed at the end of the base, and a first sprocket and a second sprocket are rotatably connected inside the connecting shell. The first sprocket and the second sprocket are connected by a chain drive, and the first sprocket is fixedly connected to a first rotating shaft, while the second sprocket is slidably connected to the second rotating shaft. Furthermore, a limit bar is provided on the second rotating shaft, and the limit bar is slidably connected to the second sprocket.

[0008] As a further description of the above technical solution: the reciprocating component is rotatably connected to the second rotating shaft on the support frame, and the end of the second rotating shaft is provided with a driving component for driving the second rotating shaft to rotate, preferably a geared motor; A reciprocating lead screw is provided at the middle position of the second rotating shaft, and a threaded sleeve for use with the reciprocating lead screw is provided on the base.

[0009] As a further description of the above technical solution: the cleaning unit also includes a sliding shaft and a sliding sleeve. The sliding shaft is fixedly connected to the support frame, the sliding sleeve is disposed on the base, and the sliding shaft and the sliding sleeve are slidably connected.

[0010] As a further description of the above technical solution: the interception unit includes two rollers mounted on a support frame, and a grid plate is provided between the two rollers; The grid plate has several rake teeth arranged at equal intervals; The support frame is also equipped with a servo motor, the output of which is connected to one of the roller shafts via a drive.

[0011] As a further description of the above technical solution: the top position of the grating plate is arranged in close contact with the brush.

[0012] Beneficial effects: During the continuous conveying of debris by the interception unit, the rotating transmission component synchronously drives the No. 1 rotating shaft and brush to rotate at high speed, which can immediately remove fibrous debris (such as hair and cloth strips) and sticky debris (such as sludge clumps) adhering to the gaps between the rake teeth and the surface of the grid plate. This prevents the debris from falling back into the sewage tank and reduces the amount of debris in subsequent filtration and sedimentation stages. In addition, the reciprocating component drives the base and brush to move back and forth along the surface of the interception unit. Combined with the rotation of the brush, a "spiral cleaning trajectory" is formed, which effectively covers blind spots such as the ends of the rake teeth and the edges of the grid plate that cannot be reached by traditional fixed-position cleaning. In particular, it can thoroughly clean up the entangled debris (such as plastic ropes and branches) and avoid the impact of local debris accumulation on the efficiency of sewage flow. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a wastewater treatment bar screen proposed in this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the interception unit of this utility model; Figure 3 This is a three-dimensional structural diagram of the cleaning unit of this utility model; Figure 4 This is a three-dimensional structural diagram of the crushing unit of this utility model.

[0014] Legend: 1. Support frame; 2. Interception unit; 21. Roller shaft; 22. Grating plate; 23. Rake teeth; 3. Cleaning unit; 31. Base; 32. No. 1 rotating shaft; 33. Brush; 34. No. 1 sprocket; 35. Chain; 36. Connecting shell; 37. Drive assembly; 38. No. 2 rotating shaft; 39. Limiting strip; 310. No. 2 sprocket; 311. Reciprocating screw; 312. Threaded sleeve; 313. Sliding shaft; 314. Sliding sleeve; 4. Crushing unit; 41. Connecting seat; 42. No. 3 rotating shaft; 43. Crushing blade; 44. Gear. Detailed Implementation

[0015] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Reference Figures 1-4 A wastewater treatment bar screen includes a support frame 1. It should be noted that the support frame 1 is installed in a flowing wastewater treatment tank, preferably fixed to the bottom of the tank by bolts, but not limited to bolts. The support frame 1 is provided with an interception unit 2 for intercepting debris in the wastewater. The support frame 1 is also provided with a cleaning unit 3 located above the interception unit 2. The cleaning unit 3 includes a reciprocating assembly, on which a base 31 is mounted, and a first rotating shaft 32 is rotatably connected to the base 31. Several brushes 33 are arranged at equal intervals on the first rotating shaft 32. Furthermore, the cleaning unit 3 also includes a rotation transmission assembly for driving the first rotating shaft 32 to rotate.

[0017] Specifically, during the operation of the interception unit 2, the rotation transmission component drives the first rotating shaft 32 to rotate, which in turn drives the brush 33 on it to rotate. This allows the debris stuck to the interception unit 2 to be cleaned up in time, preventing it from being carried back into the water and adding to the cleaning workload. At the same time, the reciprocating component drives the base 31 to move left and right continuously, which in turn drives the first rotating shaft 32 and the brush 33 on it to move left and right, allowing for left and right washing on the interception unit 2 and improving the cleaning effect on the debris on the interception unit 2.

[0018] Furthermore, the support frame 1 is also provided with a crushing unit 4, located below the interception unit 2. The crushing unit 4 includes a connecting seat 41, and two No. 3 rotating shafts 42 are provided on the inner side of the connecting seat 41. Each of the two No. 3 rotating shafts 42 is provided with a gear 44 at its end, and the two gears 44 are meshed and connected. Each of the three rotating shafts 42 is also provided with a crushing blade 43; Furthermore, a drive source is provided at the end of one of the gears 44 to drive the third rotating shaft 42 to rotate, preferably a servo motor.

[0019] Specifically, the servo motor drives the three-shaft 42 connected to it to rotate, and the gear 44 drives the two three-shaft 42 to rotate at the same speed and in opposite directions. This allows the interception unit 2 to transport debris from the sewage out of the water, and when the debris falls from above the interception unit 2 into the crushing unit 4 area, it can be crushed into smaller pieces by the crushing blade 43. This reduces the space occupied by the debris when it is collected and processed in a centralized manner.

[0020] Furthermore, the rotational transmission assembly includes a connecting shell 36 disposed at the end of the base 31. It should be noted that the purpose of the connecting shell 36 is to provide an installation environment for the second sprocket 310 and the first sprocket 34, and to isolate the first sprocket 34, the chain 35, and the second sprocket 310 inside the connecting shell 36 for protection. The first sprocket 34 and the second sprocket 310 are rotatably connected inside the connecting shell 36. The first sprocket 34 and the second sprocket 310 are connected by a chain 35, and the first sprocket 34 is fixedly connected to the first rotating shaft 32. The second sprocket 310 is slidably connected to the second rotating shaft 38. Furthermore, a limiting strip 39 is provided on the second rotating shaft 38, and the limiting strip 39 is slidably connected to the second sprocket 310. On the one hand, the second sprocket 310 can rotate together with the second rotating shaft 38 under the action of the limiting strip 39, and on the other hand, the second sprocket 310 can slide on the second rotating shaft 38.

[0021] When the second rotating shaft 38 in the reciprocating assembly is driven to rotate, it can drive the second sprocket 310 to rotate under the action of the limit bar 39. It can also drive the chain 35 and the first sprocket 34 to rotate through the action of the limit bar 39, which in turn drives the first rotating shaft 32 to rotate. The first rotating shaft 32 drives the multiple brushes 33 on it to rotate.

[0022] Furthermore, the reciprocating assembly is rotatably connected to the second rotating shaft 38 on the support frame 1, and the end of the second rotating shaft 38 is provided with a drive assembly 37 for driving the second rotating shaft 38 to rotate, preferably a geared motor; A reciprocating lead screw 311 is provided at the middle position of the second rotating shaft 38, and a threaded sleeve 312 for use with the reciprocating lead screw 311 is provided on the base 31. It should be noted that the reciprocating lead screw 311 and the threaded sleeve 312 are mature products available on the market. By opening a corresponding guide groove on the reciprocating lead screw 311, the threaded sleeve 312 can move back and forth on the reciprocating lead screw 311. Therefore, it will not be described in detail. This drives the base 31 to move back and forth.

[0023] Specifically, by driving the second rotating shaft 38 to rotate, the second rotating shaft 38 drives the reciprocating screw 311 to rotate, and then the base 31 follows the threaded sleeve 312 to move back and forth. The base 31 drives the first rotating shaft 32 and the brush 33 on it to move back and forth.

[0024] Furthermore, the cleaning unit 3 also includes a sliding shaft 313 and a sliding sleeve 314. The sliding shaft 313 is fixedly connected to the support frame 1, and the sliding sleeve 314 is disposed on the base 31. The sliding shaft 313 and the sliding sleeve 314 are slidably connected to each other, which serves as a limiting and guiding function.

[0025] Furthermore, the interception unit 2 includes two rollers 21 arranged on the support frame 1, and a grid plate 22 is arranged between the two rollers 21. It should be noted that the grid plate 22 is an existing product that allows sewage to pass through, while larger debris is intercepted by the grid plate 22. The grating plate 22 is provided with a number of rake teeth 23 at equal intervals. These are also existing mature products that are used in conjunction with the grating plate 22 to intercept debris in sewage. The support frame 1 is also equipped with a servo motor, and the output of the servo motor is connected to one of the roller shafts 21 for transmission.

[0026] Furthermore, the top position of the grille plate 22 is arranged in close contact with the brush 33.

[0027] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wastewater treatment bar screen, comprising a support frame (1), characterized in that, The support frame (1) is provided with an interception unit (2) for intercepting debris in the sewage. The support frame (1) is also provided with a cleaning unit (3) located above the interception unit (2). The cleaning unit (3) includes a reciprocating assembly, on which a base (31) is mounted, and a first rotating shaft (32) is rotatably connected to the base (31), and a number of brushes (33) are arranged at equal intervals on the first rotating shaft (32). The cleaning unit (3) also includes a rotation transmission assembly for driving the first rotating shaft (32) to rotate.

2. The wastewater treatment bar screen according to claim 1, characterized in that, The support frame (1) is also provided with a crushing unit (4), located below the interception unit (2). The crushing unit (4) includes a connecting seat (41). The inner side of the connecting seat (41) is provided with two No. 3 rotating shafts (42), and the ends of the two No. 3 rotating shafts (42) are each provided with a gear (44), and the two gears (44) are meshed and connected. Each of the three rotating shafts (42) is also provided with a crushing blade (43); Furthermore, a drive source is provided at the end of one of the gears (44) for driving the third rotating shaft (42) to rotate, preferably a servo motor.

3. A wastewater treatment bar screen according to claim 1, characterized in that, The rotational transmission assembly includes a connecting shell (36) disposed at the end of the base (31). A first sprocket (34) and a second sprocket (310) are rotatably connected inside the connecting shell (36). The first sprocket (34) and the second sprocket (310) are connected by a chain (35). The first sprocket (34) is fixedly connected to a first rotating shaft (32), and the second sprocket (310) is slidably connected to the second rotating shaft (38). Furthermore, a limit bar (39) is provided on the second rotating shaft (38), and the limit bar (39) is slidably connected to the second sprocket (310).

4. A wastewater treatment bar screen according to claim 1, characterized in that, The reciprocating assembly is rotatably connected to the second rotating shaft (38) on the support frame (1), and the end of the second rotating shaft (38) is provided with a drive assembly (37) for driving the second rotating shaft (38) to rotate, preferably a geared motor; A reciprocating screw (311) is provided at the middle position of the second rotating shaft (38), and a threaded sleeve (312) for use with the reciprocating screw (311) is provided on the base (31).

5. A wastewater treatment bar screen according to claim 1, characterized in that, The cleaning unit (3) further includes a sliding shaft (313) and a sliding sleeve (314). The sliding shaft (313) is fixedly connected to the support frame (1), and the sliding sleeve (314) is set on the base (31). The sliding shaft (313) and the sliding sleeve (314) are slidably connected.

6. A wastewater treatment bar screen according to claim 1, characterized in that, The interception unit (2) includes two rollers (21) arranged on the support frame (1), and a grid plate (22) is arranged between the two rollers (21). The grid plate (22) has a number of rake teeth (23) arranged at equal intervals. The support frame (1) is also equipped with a servo motor, the output of which is connected to one of the rollers (21) via a transmission.

7. A wastewater treatment bar screen according to claim 6, characterized in that, The top of the grating plate (22) is arranged in close contact with the brush (33).

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