A grid type dirt removal device

Abstract

This utility model provides a bar screen cleaning device, including a water tank and an arc-shaped bar screen. The arc-shaped bar screen is disposed in the water tank. A frame is provided on the top surface of the water tank. A rotating shaft is rotatably mounted in the middle of the frame, with one end of the shaft driving a first motor. A rotating cylinder is fitted on the rotating shaft. Multiple scrapers are provided on the outer side of the rotating cylinder. The scraper ends are provided with serrations that abut against the arc-shaped bar screen. A moving mechanism is slidably mounted on the top surface of the water tank. A U-shaped frame is rotatably mounted on the side of the moving mechanism. A second rotating shaft is rotatably mounted in the middle of the U-shaped frame. One end of the second rotating shaft is rotatably connected to the U-shaped frame, and the other end passes through the U-shaped frame and drives a second motor. The second motor is located on the side of the U-shaped frame. A cylinder is provided on the second rotating shaft. A hook is provided on the side of the cylinder, with the end of the hook abutting against the outer side of the rotating cylinder. This utility model uses a cylinder. The rotation of the cylinder drives the hook, which can clean fibrous debris on the scrapers from both longitudinal and transverse directions, improving the cleaning effect and preventing the arc-shaped bar screen from clogging.

Description

Technical Field

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

[0002] With the acceleration of industrialization and urbanization, wastewater discharge has increased dramatically, posing a serious threat to natural water bodies and the ecological environment. Wastewater refers to polluted water discharged from domestic and industrial processes, mainly including domestic sewage, industrial wastewater, commercial wastewater, and initial rainwater. This wastewater contains large amounts of organic matter, inorganic salts, heavy metals, pathogens, pollutants, and plant nutrients, among other harmful substances. If discharged directly without effective treatment, it will lead to eutrophication, water quality deterioration, and even waterborne infectious diseases, seriously endangering human health and ecological environment safety.

[0003] A typical wastewater treatment process includes multiple stages such as pretreatment, primary treatment, biological treatment, secondary treatment, advanced treatment, and sludge treatment. The pretreatment stage uses equipment such as screens and grit chambers to remove large floating debris and sand particles from the wastewater to protect subsequent treatment equipment. However, wastewater treatment plants often encounter fibrous impurities during operation, such as hair, ropes, and weeds, which can easily become entangled and clog the screens. If not addressed promptly, this will significantly reduce wastewater treatment efficiency. Utility Model Content

[0004] In view of this, the present invention proposes a grid-type dirt removal device to solve the problems mentioned above.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A bar screen cleaning device includes a water tank and an arc-shaped bar screen. An inlet pipe and an outlet pipe are respectively provided on both sides of the water tank. The arc-shaped bar screen is located inside the water tank, with its convex surface facing the outlet pipe. A frame is provided on the top surface of the water tank. A rotating shaft is rotatably mounted in the middle of the frame, with one end rotatably mounted on the frame and the other end passing through the frame and driving a first motor. The first motor is located on the side of the frame. A rotating cylinder is fitted onto the rotating shaft, and multiple scrapers are provided on the outer side of the rotating cylinder. The scraper ends are provided with serrations, which abut against the arc-shaped bar screen. A sliding mechanism is provided on the top surface of the water tank. A U-shaped frame is rotatably mounted on the side of the sliding mechanism. A second rotating shaft is rotatably mounted in the middle of the U-shaped frame, with one end rotatably connected to the U-shaped frame and the other end passing through the U-shaped frame and driving a second motor. The second motor is located on the side of the U-shaped frame. A cylinder is provided on the second rotating shaft, and a hook is provided on the side of the cylinder, with the end of the hook abutting against the outer side of the rotating cylinder.

[0007] Preferably, the moving mechanism includes a second frame, a lead screw, a third motor, and a moving block. The second frame is U-shaped, with its bottom two ends located on the top surface of the water tank. The lead screw is rotatably located in the middle of the second frame, with one end rotatably connected to the second frame and the other end passing through the second frame and driving the third motor. The third motor is located on the side of the second frame.

[0008] Preferably, a fourth motor is also included, which is located on the side of the moving block and has its output shaft passing through the moving block and driving the U-shaped frame.

[0009] Preferably, the outer circumferential surface of the rotating cylinder is provided with multiple openings, which are evenly distributed around the axis of the rotating cylinder and are interconnected through the inner cavity of the cylinder.

[0010] Preferably, the system also includes a slider, with a groove provided on the top surface of the water tank, the slider being slidably disposed in the groove, and the bottom of the second frame being connected to the top of the slider.

[0011] Preferably, the system also includes a collection box and a support plate. The collection box is located on the side of the water tank, and its side wall has a recess. The support plate is located inside the recess.

[0012] Preferably, the bottom of the collection box is equipped with a filter screen and is connected to the drain pipe through a connecting pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model is equipped with an arc-shaped screen, which can block debris in the sewage in the concave part. The second motor drives the cylinder to rotate, and the rotation of the cylinder drives the hook, which can clean the fibrous debris on the scraper from both longitudinal and transverse directions, thereby improving the removal effect of fibrous debris and avoiding clogging of the arc-shaped screen.

[0015] 2. Set up a collection box to place fibrous debris and other impurities on the hook into the collection box for convenient centralized processing later;

[0016] 3. The support plate is set at an inclination. When the drum rotates, the scraper can scrape up the blocky floating objects and sand and other debris on the concave surface of the arc-shaped grid. The debris moves from the concave surface of the arc-shaped grid to the top of the support plate, and then slides into the collection box along the inclination direction under the action of gravity, which improves the decontamination effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a grid-type dirt removal device according to the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of a grid-type dirt removal device according to the present invention;

[0020] Figure 3 for Figure 2 Cross-sectional view at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the moving mechanism of a grid-type cleaning device according to the present invention;

[0022] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0023] Reference numerals: 1. Water tank; 2. Inlet pipe; 3. Outlet pipe; 4. Frame 1; 5. Rotary drum; 6. Opening; 7. Scraper; 8. Frame 2; 9. First motor; 10. Support plate; 11. Collection box; 12. Filter screen; 13. Connecting pipe; 14. Second motor; 15. Third motor; 16. Fourth motor; 17. Lead screw; 18. Moving block; 19. Rotating shaft 1; 20. Arc-shaped grille; 21. Notch; 22. U-shaped frame; 23. Rotating shaft 2; 24. Cylinder; 25. Hook; 26. Slide groove; 27. Slider. Detailed Implementation

[0024] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0025] See Figures 1 to 5This utility model provides a bar screen cleaning device, including a water tank 1 and an arc-shaped bar screen 20. The water tank 1 has an inlet pipe 2 and an outlet pipe 3 on both sides. The arc-shaped bar screen 20 is located inside the water tank 1, with its convex surface facing the outlet pipe 3. A frame 4 is provided on the top surface of the water tank 1. A rotating shaft 19 is rotatably mounted in the middle of the frame, with one end rotatably mounted on the frame 4 and the other end passing through the frame 4 and driving a first motor 9. The first motor 9 is located on the side of the frame. A rotating cylinder 5 is sleeved on the rotating shaft 19, and multiple... The scraper 7 has serrations at its end, which abut against the arc-shaped grid 20. The top surface of the water tank 1 is slidably provided with a moving mechanism. The moving mechanism is rotatably provided with a U-shaped frame 22 on its side. The U-shaped frame 22 is rotatably provided with a second rotating shaft 23 in the middle. One end of the shaft is rotatably connected to the U-shaped frame 22, and the other end passes through the U-shaped frame 22 and is driven by a second motor 14. The second motor 14 is provided on the side of the U-shaped frame 22. The rotating shaft 23 is provided with a cylinder 24. The side of the cylinder 24 is provided with a hook 25. The end of the hook 25 abuts against the outer side of the rotating cylinder 5.

[0026] When the sewage removal device is working, sewage is first discharged from the inlet pipe 2 into the water tank 1 and then discharged from the drain pipe. The arc-shaped screen 20 blocks the debris in the sewage on its concave surface. Then, the first motor 9 is started. The rotation of the first motor 9 drives the rotating shaft 19 to rotate, which in turn drives the rotating drum 5 to rotate. The axes of the rotating drum 5 and the arc-shaped screen 20 are coincident. The scraper 7 scrapes the debris on the concave surface of the arc-shaped screen 20 from the bottom of the water tank 1 upwards along the concave surface. The scraper 7 can scrape up blocky floating objects and gravel and other debris on the concave surface of the arc-shaped screen 20. The debris moves from the concave surface of the arc-shaped screen 20 to the top of the support plate 10, and then slides down into the collection box 11 under the action of gravity, improving the sewage removal effect. When there are many fibrous debris in the sewage, the fibrous debris will be wrapped around the serrations at the end of the scraper 7. When the scraper 7 is above the support plate 10 and in a horizontal state, the first motor 9 is stopped, and then the moving mechanism is started. The moving mechanism drives U The U-shaped frame 22 moves to the end of the scraper 7, and the second motor 14 is started. The rotation of the second motor 14 drives the second rotating shaft 23 to rotate, which in turn drives the cylinder 24 to rotate. Then, the U-shaped frame 22 is rotated so that the rotation axis of the cylinder 24 is aligned with the scraper 7. The frame 28 is slowly moved closer to the scraper 7 so that the hooks 25 on the cylinder 24 rotate longitudinally to catch the debris on the scraper 7 and make it fall onto the support plate 10. Then, the moving mechanism is started to clean from one end of the scraper 7 to the other end. When the other end is reached, the U-shaped frame 22 is rotated 90° so that the rotation axis of the cylinder 24 is perpendicular to the scraper 7. This causes the hooks 25 on the cylinder 24 to rotate laterally to catch the debris on the scraper 7. Then, the moving mechanism is started to return from one end of the scraper 7 to the initial position. The hooks 25 can clean the fibrous debris on the scraper 7 from both longitudinal and transverse directions, improving the removal effect of fibrous debris and preventing the arc-shaped grid 20 from clogging. In addition, by adjusting the angle of the U-shaped frame 22, the rotation direction of the hook 25 can be adjusted, allowing for multi-angle cleaning of fibrous debris on the scraper 7, improving the removal effect of fibrous debris and preventing the arc-shaped grid 20 from becoming clogged.

[0027] Preferably, the moving mechanism includes a second frame 8, a lead screw 17, a third motor 15, and a moving block 18. The second frame 8 is U-shaped, with its bottom two ends located on the top surface of the water tank 1. The lead screw 17 is rotatably located in the middle of the second frame 8, with one end rotatably connected to the second frame 8 and the other end passing through the second frame 8 and driving the third motor 15. The third motor 15 is located on the side of the second frame 8.

[0028] The moving mechanism is used to drive the U-shaped frame 22 to move laterally. When the moving mechanism is working, the third motor 15 is started first. The rotation of the third motor 15 drives the lead screw 17 to rotate. The rotation of the lead screw 17 drives the moving block 18 to move along the axis of the lead screw 17, thereby driving the U-shaped frame 22 to move laterally.

[0029] Preferably, a fourth motor 16 is also included. The fourth motor 16 is located on the side of the moving block 18, and its output shaft passes through the moving block 18 and is driven by the U-shaped frame 22. The fourth motor 16 is a stepper motor.

[0030] The fourth motor 16 is used to drive the U-shaped frame 22 to rotate at a preset angle. The fourth motor 16 is located on the side of the moving block 18, and its output shaft passes through the moving block 18 and is connected to the U-shaped frame 22 to ensure precise control and positioning of the angle of the U-shaped frame 22.

[0031] Preferably, the outer circumferential surface of the rotating cylinder 5 is provided with a plurality of openings 6, which are evenly distributed around the axis of the rotating cylinder 5 and are interconnected through the inner cavity of the cylinder 24.

[0032] When the sewage removal device is working, sewage flows from the inlet pipe 2 to the outlet pipe 3. When the rotating drum 5 is rotating or stopped, the sewage can flow through the openings 6 on both sides and the inner cavity of the rotating drum 5, reducing the obstruction of the rotating drum 5 on the sewage.

[0033] Preferably, the system also includes a slider 27, with a groove 26 provided opposite to the top surface of the water tank 1, the slider 27 being slidably disposed in the groove 26, and the bottom of the frame 2 8 being connected to the top of the slider 27.

[0034] A slide groove 26 is provided at a relative position on the top surface of the water tank 1. The shape and size of the slide groove 26 are adapted to the slider 27. The slider 27 is slidably disposed in the slide groove 26 and can slide smoothly along the length of the slide groove 26, providing stable support and guidance for the frame 2 8 and the entire moving mechanism, ensuring that the moving mechanism will not shake or deviate during operation, and ensuring the stability of the device operation.

[0035] Preferably, the system also includes a collection box 11 and a support plate 10. The collection box 11 is located on the side of the water tank 1, and its side wall is provided with a notch 21. The support plate 10 is located in the notch 21.

[0036] Fibrous debris on hook 25 can be placed in collection box 11 for convenient centralized processing later.

[0037] Preferably, the bottom of the collection box 11 is provided with a filter screen 12 and is connected to the drain pipe through a connecting pipe 13.

[0038] When debris is placed in the collection box 11, the filter screen 12 can filter out water from it, and excess water is discharged into the drain pipe through the connecting pipe 13, reducing the weight of the debris and facilitating its transfer.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grid-type decontamination device, characterized by, The device includes a water tank and an arc-shaped grille. The water tank has an inlet pipe and an outlet pipe on each side. The arc-shaped grille is located inside the water tank, with its convex surface facing the outlet pipe. A frame is mounted on the top surface of the water tank. A rotating shaft is rotatably mounted in the middle of the frame, with one end rotatably mounted on the frame and the other end passing through the frame and connected to a first motor. The first motor is located on the side of the frame. A rotating cylinder is fitted onto the rotating shaft, and multiple scrapers are provided on the outer side of the rotating cylinder. The scraper ends have serrations that abut against the arc-shaped grille. A sliding mechanism is slidably mounted on the top surface of the water tank. A U-shaped frame is rotatably mounted on the side of the sliding mechanism. A second rotating shaft is rotatably mounted in the middle of the U-shaped frame, with one end rotatably connected to the U-shaped frame and the other end passing through the U-shaped frame and connected to a second motor. The second motor is located on the side of the U-shaped frame. A cylinder is mounted on the second rotating shaft, and a hook is provided on the side of the cylinder, with the end of the hook abutting against the outer side of the rotating cylinder.

2. The bar screen cleaning device according to claim 1, characterized in that, The moving mechanism includes a second frame, a lead screw, a third motor, and a moving block. The second frame is U-shaped, with its bottom two ends located on the top surface of the water tank. The lead screw is rotatably located in the middle of the second frame, with one end rotatably connected to the second frame and the other end passing through the second frame and driving the third motor. The third motor is located on the side of the second frame.

3. A bar-type sewage treatment device according to claim 2, characterized in that, It also includes a fourth motor, which is located on the side of the moving block and whose output shaft passes through the moving block and is driven by the U-shaped frame.

4. A bar-type cleaning device according to claim 1, characterized in that, The outer circumferential surface of the rotating cylinder has multiple openings, which are evenly distributed around the axis of the rotating cylinder and are interconnected through the inner cavity of the cylinder.

5. A bar-type sewage treatment device according to claim 2, characterized in that, It also includes a slider, with a groove provided on the top surface of the water tank, the slider being slidably disposed in the groove, and the bottom of the second frame being connected to the top of the slider.

6. A bar-type sewage treatment device according to claim 1, characterized in that, It also includes a collection box and a support plate. The collection box is located on the side of the water tank and has a notch in its side wall. The support plate is located in the notch.

7. A bar-type sewage treatment device according to claim 6, characterized in that, The bottom of the collection box is equipped with a filter screen and is connected to the drain pipe through a connecting pipe.

Images