An efficient grid cleaning device with automatic slag removal

Abstract

The utility model discloses an automatic high -efficient grating cleaning device of deslagging, including two device side plates and the grating conveyer belt of setting between two device side plates, the grating conveyer belt outer wall equidistance is provided with multiple groups of cleaning rake teeth, two device side plate top fixedly connected with the discharge protective cover, the discharge protective cover is close to rear end bottom and is provided with the blowdown hopper, through the new adjustable discharging guide device of increasing in front of blowdown hopper, this device is connected with the rotation of U type rotating frame and discharge protective cover, and the rotation of connecting screw rod, adjusting support cooperation, can easily adjust the angle of rectangular guide baffle, and the operator loosens the adjusting locking nut, pushes the connecting screw rod and moves along the sliding slot, through the cooperation of U type connecting angle cover and metal rotating block, drives the baffle rotation, if the baffle is rotated more than thirty degrees, the lower half is inclined to the blowdown hopper discharge port, can guide the dirt to the more back collection area, and the collection container is shifted, and the blowdown is carried out in multiple area batch, and the device working condition adaptability is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of water pollution prevention and control equipment, specifically relating to a high-efficiency bar screen cleaning device with automatic sludge removal. Background Technology

[0002] High-efficiency automatic bar screens are key equipment in wastewater treatment, river management, and industrial wastewater pretreatment. Their core function is to actively capture suspended solids and solid residues in the water through the synergistic action of the bar screen conveyor belt and cleaning rake teeth, transporting the solids to the top for centralized discharge, thereby purifying the water and protecting pipelines and subsequent treatment equipment. Compared to traditional manual cleaning or passive interception bar screens, this device, with its advantages of automated operation, high cleaning efficiency, and low maintenance costs, has been widely used in municipal wastewater treatment plants, industrial parks, and water conservancy projects, becoming a crucial link in ensuring smooth water treatment processes.

[0003] However, traditional bar screen cleaning devices often employ a fixed design for their material feeding guide structure. This means that only a guide plate with a single, fixed direction is installed below the hopper or at the discharge end, making it impossible to adjust the feeding path according to the actual sewage discharge scenario. For example, when the position of the waste collection container below the hopper needs to be temporarily adjusted, or when waste needs to be guided to different collection areas in batches, the fixed guide structure cannot meet this requirement. This causes waste to easily deviate from the collection container and scatter around the device, causing environmental pollution and requiring secondary manual cleaning, increasing operation and maintenance costs. At the same time, for waste with different moisture content and size, the fixed guide angle cannot optimize the feeding speed. This can easily lead to problems such as waste with high moisture content remaining on the guide plate surface, clumping and clogging, or large waste getting stuck between the hopper and the guide plate due to improper guide angle. Utility Model Content

[0004] The purpose of this utility model is to provide an efficient bar screen cleaning device with automatic slag removal, in order to solve the problem mentioned in the background art that the traditional bar screen cleaning device has a fixed structure for material feeding guidance, only a single direction guide plate, and cannot adjust the material feeding path according to the scene. When the collection container is moved or sewage needs to be discharged in different areas, the sewage is easy to scatter, which increases the pollution and manual cleaning costs. In addition, it is difficult to adapt to different sewages and is prone to problems such as high water content sewage retention and blockage, and large volume sewage jamming.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an efficient bar screen cleaning device with automatic slag removal, comprising two device side plates and a bar screen conveyor belt disposed between the two device side plates. The outer wall of the bar screen conveyor belt is provided with multiple sets of cleaning rake teeth at equal intervals. The top of the two device side plates is fixedly connected to a discharge protection cover. A discharge hopper is disposed near the bottom of the discharge protection cover at the rear end. An adjustable discharge guide device is disposed in front of the discharge hopper.

[0006] Preferably, the adjustable feeding guide device includes a protective baffle, a rectangular guide baffle, and a U-shaped rotating frame. The U-shaped rotating frame is sleeved on the outer walls of the left and right ends of the rear side of the center of the discharge protective cover with the opening facing upward, and the U-shaped rotating frame is located in front of the sewage hopper. The bottom end of the U-shaped rotating frame is welded and fixed with a rectangular guide baffle, and the left and right ends of the rectangular guide baffle and the outer wall of the rear end are both welded with protective baffles.

[0007] Preferably, both ends of the U-shaped rotating frame opening are rotatably connected to the discharge protection cover via metal shafts. The U-shaped rotating frame can drive the rectangular guide baffle at the bottom to rotate clockwise and counterclockwise in the front-back direction. When the rectangular guide baffle is in a downward vertical state, it is located in front of the discharge port of the sewage hopper.

[0008] Preferably, the adjustable feeding guide device further includes an adjusting bracket, a top fixing frame, and a screw movable slide groove. A top fixing frame is welded to the center of the outer wall of the top rear end of the discharge protective cover. An adjusting bracket is vertically welded to the bottom of the rear end of the top fixing frame. A screw movable slide groove is provided inside the lower half of the adjusting bracket. The adjusting bracket is located in a downward vertical position behind the sewage hopper.

[0009] Preferably, the adjustable feeding guide device further includes a connecting screw, a metal rotating block, and a U-shaped connecting corner sleeve. A U-shaped connecting corner sleeve is fixed to the lower side of the center of the outer wall at the rear end of the rectangular guide baffle. A metal rotating block is provided in the U-shaped connecting corner sleeve, and a connecting screw is welded to the rear end of the metal rotating block.

[0010] Preferably, the rear end of the connecting screw passes through the screw movable slide groove, and the U-shaped connecting corner sleeve and the metal rotating block are rotatably connected by a metal shaft. The rearward movement of the connecting screw can drive the rectangular guide baffle to rotate backward through the interconnected U-shaped connecting corner sleeve and the metal rotating block, thereby changing the angle of the rectangular guide baffle. When the rectangular guide baffle rotates backward to an angle greater than 30 degrees, the lower half of the rectangular guide baffle is inclined and located below the discharge port of the sewage hopper.

[0011] Preferably, the adjustable feeding guide device further includes two adjusting locking nuts, both of which are threaded onto the outside of the connecting screw, and the two adjusting locking nuts are located at the front and rear ends of the adjusting bracket respectively. When the two adjusting locking nuts are adjusted and clamped at the front and rear ends of the adjusting bracket respectively, the connecting screw can be prevented from moving back and forth, so as to lock the operating angle of the rectangular guide baffle.

[0012] Preferably, the front ends of both device side plates are provided with metal baffles, and the rear outer walls of both device side plates are provided with multiple metal fixing blocks at equal intervals, and the two metal fixing blocks that are symmetrical on the left and right are fixedly connected with side plate connecting frames.

[0013] Preferably, a main drive roller is provided inside the top end of the grid conveyor belt, a driven drive roller is provided inside the bottom end of the grid conveyor belt, a drive motor is fixed on the outer wall of the top end of the discharge protective cover, a transmission protective cover is provided outside the right end of the drive motor, the motor shaft of the drive motor and the right end of the roller shaft of the main drive roller are both located inside the transmission protective cover, and the motor shaft of the drive motor and the roller shaft of the main drive roller are connected to the drive belt through a pulley.

[0014] Compared with the prior art, this utility model provides a high-efficiency bar screen cleaning device with automatic slag removal, which has the following beneficial effects:

[0015] This invention adds a novel adjustable feeding guide device to the front of the sewage hopper of the bar screen cleaning device. The adjustable feeding guide device, through the rotating connection structure of the U-shaped rotating frame and the discharge protective cover, as well as the synergistic effect of the connecting screw and the adjusting bracket, can easily adjust the angle of the rectangular guide baffle. When the feeding direction needs to be adjusted, the operator only needs to loosen the adjusting locking nut and push the connecting screw to move back and forth along the screw's movable slide groove. The U-shaped connecting corner sleeve and the rotating metal block will then rotate the rectangular guide baffle clockwise and counterclockwise around the metal axis of the U-shaped rotating frame, changing the guiding angle. For example, when the rectangular guide baffle rotates backward to an angle greater than 30 degrees, its lower half is tilted below the sewage hopper's discharge port, guiding the waste to a more rearward collection area. This adapts to special needs such as adjusting the position of the collection container below the sewage hopper and batch sewage discharge in multiple areas. This flexible adjustment capability allows the device to be flexibly adjusted according to the actual sewage discharge scenario and the layout of the collection equipment, significantly improving the device's adaptability under different working conditions.

[0016] The rectangular guide baffle and protective baffle in this device form a complete guiding and protective structure. The rectangular guide baffle plays a major role in receiving and guiding the sludge conveyed by the bar screen conveyor belt, preventing the sludge from deviating from the discharge path due to gravity, airflow interference, or other factors during its descent. The protective baffles at both ends of the rectangular guide baffle effectively prevent sludge from scattering to the sides and from accumulating in the gap between the device's side plate and the discharge protective cover. At the same time, by precisely adjusting the angle of the rectangular guide baffle, it can be ensured that the sludge always falls stably into the target collection area along the preset path. This not only reduces the workload of subsequent manual cleaning of residual sludge, but also avoids the secondary pollution caused by the decay and odor spread of residual sludge due to long-term accumulation, or by secondary pollution caused by the water flowing back into the treated water body. This ensures the cleanliness of the environment around the bar screen cleaning device and the quality of the treated water. Attached Figure Description

[0017] Figure 1 This is a right-side perspective three-dimensional structural diagram of an automatic slag removal and high-efficiency bar screen cleaning device according to the present invention.

[0018] Figure 2 This is a right-side plan view of a high-efficiency bar screen cleaning device with automatic slag removal according to the present invention.

[0019] Figure 3 This is a front plan view of a high-efficiency bar screen cleaning device with automatic slag removal according to the present invention.

[0020] Figure 4 This is a right-side plan view of the adjustable feeding guide device of this utility model.

[0021] Figure 5 This is a rear-view three-dimensional structural diagram of the adjustable feeding guide device of this utility model.

[0022] In the diagram: 1. Side plate of the device; 2. Metal baffle; 3. Grating conveyor belt; 4. Cleaning rake teeth; 5. Metal fixing block; 6. Side plate connecting frame; 7. Adjustable material feeding guide device; 8. Sewage hopper; 9. Transmission protective cover; 10. Transmission motor; 11. Discharge protective cover; 12. Protective baffle; 13. Rectangular guide baffle; 14. Adjusting bracket; 15. Adjusting locking nut; 16. Connecting screw; 17. Top fixing frame; 18. U-shaped rotating frame; 19. Screw movable slide; 20. Metal rotating block; 21. U-shaped connecting corner sleeve. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-5The diagram illustrates a high-efficiency automatic bar screen cleaning device. The main body of the device consists of a support frame formed by two parallel and opposing side plates 1, providing a stable installation reference for the core components and effectively preventing structural deformation due to unilateral stress, thus extending the overall service life of the device. Between the two side plates 1, a horizontal bar screen conveyor belt 3 is installed. This conveyor belt serves as the core carrier for transporting waste, and its outer wall is equidistantly equipped with multiple sets of cleaning rake teeth 4. Through the principle of the rake teeth embedding waste and circulating with the conveyor belt, suspended waste and solid residue in the water can be firmly grasped and transported upwards. Compared to the passive interception method of traditional bar screens, this active grasping structure significantly improves waste removal efficiency, and the equidistant distribution design ensures no waste is missed, preventing localized waste accumulation. At the top of plate 1, a discharge protection cover 11 is fixedly connected by welding. This cover has a semi-enclosed structure, which has the advantages of preventing dirt from splashing due to vibration or airflow during the conveying of dirt by the grid conveyor belt 3, and also blocking external dust and impurities from falling into the device, ensuring a clean conveying environment. Near the bottom of the rear end of the discharge protection cover 11, a sewage hopper 8 is integrated. The sewage hopper 8 adopts a funnel-shaped structure design and uses the principle of gravity guidance to quickly gather and discharge the dirt conveyed to the top, avoiding the dirt from accumulating at the discharge end. At the same time, to adapt to different sewage discharge scenarios, an adjustable discharge guide device 7 is specially configured in front of the sewage hopper 8. Through the angle adjustment function of this device, the falling path of dirt can be further optimized, solving the problem of poor adaptability of traditional fixed sewage discharge structures.

[0025] like Figure 1 , Figure 2 and Figure 3As shown, both device side plates 1 have metal baffles 2 at their front ends. These baffles are made of high-strength steel and their advantage is that they prevent large impurities in the water flow from directly impacting the bar screen conveyor belt 3 during operation, providing cushioning and protection and reducing wear on the conveyor belt and cleaning rake teeth 4. At the rear end of both device side plates 1, multiple metal fixing blocks 5 are equidistantly arranged on their outer walls. Side plate connecting frames 6 are fixedly connected between two symmetrically arranged metal fixing blocks 5. This combination of fixing blocks and connecting frames firmly connects the two device side plates 1 into a single unit, enhancing the frame's resistance to deformation. Especially under long-term vibration conditions, this effectively prevents side plate misalignment and ensures the operational stability of the internal bar screen conveyor belt 3 and transmission components. The bar screen conveyor belt 3 has a main drive roller at its top and a driven drive roller at its bottom, forming a linkage structure. The main drive roller provides power, while the driven drive roller assists in tensioning. This main-driven and driven roller layout ensures that the bar screen conveyor belt 3 remains flat during operation. To prevent slippage and misalignment caused by a loose conveyor belt, a drive motor 10 is fixed to the outer wall of the top of the discharge protection cover 11 to drive the main drive roller. The drive motor 10 adopts a variable frequency speed control design, which has the advantage of flexibly adjusting the speed according to the amount of dirt. When the amount of dirt is large, the speed is increased to speed up the cleaning, and when the amount of dirt is small, the speed is reduced to save energy. At the same time, a transmission protection cover 9 is set on the right side of the drive motor 10. This protection cover completely encloses the transmission components, which can prevent operators from accidentally touching the rotating parts and causing safety accidents, and also prevent rainwater and dirt from corroding the transmission structure, thus extending the service life of the transmission system. The motor shaft of the drive motor 10 and the right end of the roller shaft of the main drive roller are both located inside the transmission protection cover 9, and the two are connected to the transmission belt through pulleys. The advantages of this belt drive method are smooth transmission, low noise, and when the device is overloaded, the belt will slip, which plays an overload protection role and prevents the motor from burning out due to excessive instantaneous load. Compared with gear transmission, belt transmission has lower maintenance costs, and subsequent belt replacement does not require disassembly of complex structures, which greatly reduces the difficulty of operation and maintenance.

[0026] like Figure 1 , Figure 4 and Figure 5As shown, an adjustable discharge guide device 7 is provided in front of the sewage hopper 8. The adjustable discharge guide device 7 includes a protective baffle 12, a rectangular guide baffle 13, and a U-shaped rotating frame 18. The U-shaped rotating frame 18 is sleeved on the outer walls of the left and right ends of the rear side of the center of the discharge protective cover 11 with its opening facing upward. The U-shaped rotating frame 18 is precisely positioned in front of the sewage hopper 8. This positional layout ensures that the guide baffle can directly act on the discharge path of the sewage hopper 8. The bottom end of the U-shaped rotating frame 18 is fixed with the rectangular guide baffle 13 by welding. The advantage of the welded connection is that the structure is strong and can withstand the impact of sewage without easily falling off. At the same time, the rectangular guide baffle 13 is fixed on the left and right ends of the rectangular guide baffle 13 and on the outer wall of the rear end. A protective baffle 12 is welded on, which can form a shield on the left and right sides to prevent dirt from scattering to the sides and improve the accuracy of material feeding. Both ends of the opening of the U-shaped rotating frame 18 are rotatably connected to the discharge protection cover 11 through metal shafts. This rotating structure provides a basis for angle adjustment, so that the U-shaped rotating frame 18 can drive the rectangular guide baffle 13 at the bottom to rotate clockwise and counterclockwise in the front-back direction. When the rectangular guide baffle 13 is in a downward vertical state, it is exactly in front of the sewage outlet of the sewage hopper 8. At this time, the dirt can be directly guided into the sewage hopper 8, which is suitable for conventional centralized sewage discharge. When it is necessary to change the feeding direction, the angle can be switched through the subsequent adjustment structure.

[0027] like Figure 1 , Figure 4 and Figure 5As shown, the adjustable feeding guide device 7 also includes an adjusting bracket 14, a top fixing frame 17, and a screw movable slide 19. The top fixing frame 17 is welded to the center of the outer wall of the rear end of the top of the discharge protective cover 11, and its function is to provide stable support for the adjusting bracket 14. The adjusting bracket 14 is vertically welded to the bottom of the rear end of the top fixing frame 17. The adjusting bracket 14 is in a downward vertical state and is located behind the sewage hopper 8. This position design can avoid the adjustment component from conflicting with the feeding path of the sewage hopper 8. The lower half of the adjusting bracket 14 is provided with a screw movable slide 19. The slide provides a trajectory for the movement of the connecting screw 16, ensuring that the adjustment process is stable and controllable. In order to achieve precise adjustment and locking of the guide baffle, the device is also equipped with a connecting screw 16, a metal rotating block 20, and a U-shaped connecting corner sleeve 21. On the lower side, a U-shaped connecting corner sleeve 21 is fixed, and a metal rotating block 20 is movably disposed in the U-shaped connecting corner sleeve 21. The two are rotatably connected by a metal shaft. This rotatable fit ensures that the rectangular guide baffle 13 can rotate flexibly without jamming when the connecting screw 16 is pushed. The connecting screw 16 is welded to the rear end of the metal rotating block 20. The rear end of the connecting screw 16 passes through the screw movable slide groove 19. The operator only needs to push the connecting screw 16 to move back and forth along the slide groove. The U-shaped connecting corner sleeve 21 and the metal rotating block 20 are connected to each other, which drives the rectangular guide baffle 13 to rotate backward, thereby changing the guiding angle. When the rectangular guide baffle 13 rotates backward to an angle greater than 30 degrees, its lower half is tilted below the discharge port of the sewage hopper 8. At this time, the sewage can be guided to the collection area behind the sewage hopper 8, which can meet the needs of adjusting the position of the collection container.

[0028] like Figure 1 , Figure 4 and Figure 5 As shown, the adjustable feeding guide device 7 also includes two adjusting locking nuts 15. Both adjusting locking nuts 15 are threaded onto the outside of the connecting screw 16 and are located at the front and rear ends of the adjusting bracket 14, respectively. The locking principle is to adjust the two nuts so that they are clamped at the front and rear ends of the adjusting bracket 14, and use the friction between the nuts and the bracket to prevent the connecting screw 16 from moving back and forth, thereby locking the operating angle of the rectangular guide baffle 13. The advantage of this locking method is that it is easy to operate, does not require complicated tools, and can be completed by manual tightening. It also has strong locking stability, and can effectively prevent the guide baffle angle from shifting even under device vibration conditions, thus ensuring the stability of the feeding path.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 high-efficiency bar screen cleaning device with automatic slag removal, comprising two device side plates (1) and a bar screen conveyor belt (3) disposed between the two device side plates (1), wherein the outer wall of the bar screen conveyor belt (3) is provided with multiple sets of cleaning rake teeth (4) at equal intervals, and a discharge protection cover (11) is fixedly connected to the top of the two device side plates (1), and a discharge hopper (8) is provided near the bottom of the rear end of the discharge protection cover (11), characterized in that: An adjustable feeding guide device (7) is provided in front of the sewage hopper (8); The adjustable feeding guide device (7) includes a protective baffle (12), a rectangular guide baffle (13), and a U-shaped rotating frame (18). The U-shaped rotating frame (18) is sleeved on the outer walls of the left and right ends of the center of the discharge protective cover (11) with its opening facing upward. The U-shaped rotating frame (18) is located in front of the sewage hopper (8). The rectangular guide baffle (13) is welded and fixed to the bottom end of the U-shaped rotating frame (18). The rectangular guide baffle (12) is welded to the left and right ends of the rectangular guide baffle (13) and to the outer wall of the rear end.

2. The high-efficiency bar screen cleaning device with automatic slag removal according to claim 1, characterized in that: Both ends of the opening of the U-shaped rotating frame (18) are rotatably connected to the discharge protection cover (11) through metal shafts. The U-shaped rotating frame (18) can drive the rectangular guide baffle (13) at the bottom to rotate clockwise and counterclockwise in the front-back direction. When the rectangular guide baffle (13) is in a downward vertical state, it is located in front of the discharge port of the sewage hopper (8).

3. The high-efficiency bar screen cleaning device with automatic slag removal according to claim 2, characterized in that: The adjustable feeding guide device (7) also includes an adjusting bracket (14), a top fixing bracket (17), and a screw movable slide (19). The top fixing bracket (17) is welded to the center of the outer wall of the top rear end of the discharge protective cover (11). The adjusting bracket (14) is vertically welded to the bottom of the rear end of the top fixing bracket (17). The lower half of the adjusting bracket (14) is provided with a screw movable slide (19). The adjusting bracket (14) is located in a downward vertical state behind the sewage hopper (8).

4. The high-efficiency bar screen cleaning device with automatic slag removal according to claim 3, characterized in that: The adjustable feeding guide device (7) also includes a connecting screw (16), a metal rotating block (20) and a U-shaped connecting corner sleeve (21). A U-shaped connecting corner sleeve (21) is fixed on the lower side of the center of the outer wall of the rear end of the rectangular guide baffle (13). A metal rotating block (20) is provided in the U-shaped connecting corner sleeve (21). A connecting screw (16) is welded to the rear end of the metal rotating block (20).

5. The high-efficiency bar screen cleaning device with automatic slag removal according to claim 4, characterized in that: The rear end of the connecting screw (16) passes through the screw movable slide groove (19). The U-shaped connecting corner sleeve (21) and the metal rotating block (20) are rotatably connected by a metal shaft. The rearward movement of the connecting screw (16) can drive the rectangular guide baffle (13) to rotate backward through the interconnected U-shaped connecting corner sleeve (21) and the metal rotating block (20) to change the angle of the rectangular guide baffle (13). When the rectangular guide baffle (13) rotates backward to an angle greater than 30 degrees, the lower half of the rectangular guide baffle (13) is tilted and located below the discharge port of the sewage hopper (8).

6. The high-efficiency bar screen cleaning device with automatic slag removal according to claim 5, characterized in that: The adjustable feeding guide device (7) also includes two adjusting locking nuts (15). The two adjusting locking nuts (15) are threaded onto the outside of the connecting screw (16), and the two adjusting locking nuts (15) are located at the front and rear ends of the adjusting bracket (14) respectively. When the two adjusting locking nuts (15) are adjusted and clamped at the front and rear ends of the adjusting bracket (14) respectively, the connecting screw (16) can be prevented from moving back and forth, so as to lock the use angle of the rectangular guide baffle (13).

7. The high-efficiency bar screen cleaning device with automatic slag removal according to claim 1, characterized in that: Metal baffles (2) are provided at the front end of both device side plates (1), and multiple metal fixing blocks (5) are provided at equal intervals on the outer wall of the rear end of both device side plates (1), and side plate connecting frames (6) are fixedly connected between the two symmetrical metal fixing blocks (5).

8. The high-efficiency bar screen cleaning device with automatic slag removal according to claim 7, characterized in that: The grid conveyor belt (3) is equipped with a main drive roller at the top and a driven drive roller at the bottom. The discharge protection cover (11) is fixed with a drive motor (10) on the outer wall at the top. The right end of the drive motor (10) is equipped with a transmission protection cover (9). The motor shaft of the drive motor (10) and the right end of the roller shaft of the main drive roller are both located inside the transmission protection cover (9). The motor shaft of the drive motor (10) and the roller shaft of the main drive roller are connected to the drive belt through a pulley.

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