Grid rake and grid machine

Abstract

The present application provides a kind of grid rake slag removal device, it is related to sewage treatment field, including scraping slag device and driving device, scraping slag device includes scraping slag shaft and multiple scraping slag components, scraping slag shaft is connected with the output end of driving device, and driving device can drive scraping slag shaft rotates along the axis of scraping slag shaft, each scraping slag component is set outside scraping slag shaft and is detachably fixedly connected with scraping slag shaft, multiple scraping slag components are arranged along the axial direction of scraping slag shaft, and each scraping slag component can be fixedly connected at different positions in the axial direction of scraping slag shaft, there is gap between adjacent two scraping slag components for the rake of grid device to extend, and each scraping slag component can extend to the gap between adjacent rake.The grid machine provided by the present application includes rack, grid device and the above-mentioned grid rake slag removal device, the grid device is connected to the rack, and the scraping slag shaft and the driving device are used for fixed connection with the rack.The grid rake slag removal device and the grid machine provided by the present application are simple in structure and flexible in application.

Description

Bar screen tooth cleaning device and bar screen machine Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a bar screen rake tooth cleaning device and a bar screen machine. Background Technology

[0002] A bar screen is a solid-liquid separation device that continuously removes impurities from fluids. It is an indispensable specialized piece of equipment in production processes in industries such as urban wastewater treatment, waterworks, power plant intakes, textiles, food processing, papermaking, and leather. The bar screen uses rake teeth to block various particles and suspended solids in wastewater, preventing them from entering subsequent processes and affecting the treatment effect. However, particles and suspended solids filtered by the rake teeth easily adhere to the bar screen, causing it to become clogged.

[0003] Currently, particles and suspended solids on a screen can be cleaned by setting up a screen rake tooth cleaning device. Specifically, the scraping component of the screen rake tooth cleaning device extends between adjacent rake teeth and approaches the screen. The scraping component is driven to rotate, scraping away particles and suspended solids between adjacent rake teeth, thus cleaning the screen rake tooth cleaning device. For example, Chinese Patent CN201821327052.X provides a circular arc-shaped screen cleaning device for sewage treatment. The scraping teeth on the scraper plate cooperate with the rake teeth on the rake plate. When the motor drives the rotating rake arm to rotate, the rake teeth on the rake plate pick up the debris accumulated on the circular arc-shaped screen, and the debris hanging on the rake teeth is scraped off onto the slide. However, the distance between the scraping components (scraping teeth) in the screen rake tooth cleaning device of this patent cannot be adjusted. Since the spacing between the rake teeth of different models of screens is often different, scraping components (scraping teeth) of corresponding sizes need to be manufactured according to the spacing between the rake teeth of each model, which is inconvenient for application. Summary of the Invention

[0004] The purpose of this invention is to provide a bar screen cleaning device and bar screen machine to solve the problems existing in the prior art. It has a simple structure and flexible application.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a grid rake tooth cleaning device, including a scraping device and a driving device. The scraping device includes a scraping shaft and multiple scraping components. The scraping shaft is connected to the output end of the driving device, and the driving device can drive the scraping shaft to rotate along the axis of the scraping shaft. Each scraping component is sleeved on the scraping shaft and detachably fixedly connected to the scraping shaft. The multiple scraping components are arranged along the axial direction of the scraping shaft, and each scraping component can be fixedly connected at different positions along the axial direction of the scraping shaft. A gap is left between two adjacent scraping components for the rake teeth of the grid device to extend into, and each scraping component can extend into the gap between adjacent rake teeth.

[0007] Preferably, it further includes a plurality of first limiting components, each of the first limiting components being sleeved outside the scraper shaft and detachably fixedly connected to the scraper shaft, and at least one first limiting component being provided between two adjacent scraper components.

[0008] Preferably, it further includes two second limiting components, each of which is sleeved on the outside of the scraper shaft and detachably fixedly connected to the scraper shaft. The plurality of scraper components and the plurality of first limiting components are disposed between the two second limiting components, and the two second limiting components can clamp the plurality of scraper components and the plurality of first limiting components to achieve a fixed connection between each scraper component and each first limiting component and the scraper shaft.

[0009] Preferably, it further includes a support device, which includes a support assembly and a first adjusting rod. One end of the first adjusting rod in the length direction is provided with a plurality of first mounting holes. The support assembly is used to be fixedly connected to the bar screen, and the support assembly can be detachably fixedly connected to any one of the plurality of first mounting holes of the first adjusting rod. The scraper shaft is fixedly connected to the other end of the first adjusting rod. The support assembly can adjust the distance between the scraper shaft and the rake teeth by connecting to the first mounting holes at different positions.

[0010] Preferably, the scraper shaft is arranged along the width direction of the frame of the bar screen, and the center line of the first adjusting rod is perpendicular to the axis of the scraper shaft.

[0011] Preferably, the support assembly includes a second adjusting rod and a fixing rod. One end of the second adjusting rod along its length is provided with a plurality of second mounting holes. One end of the fixing rod is used to be fixedly connected to the bar screen machine. The other end of the fixing rod can be detachably fixedly connected to any one of the plurality of second mounting holes on the second adjusting rod. The other end of the second adjusting rod can be detachably fixedly connected to any one of the plurality of first mounting holes on the first adjusting rod.

[0012] Preferably, the centerline of the second adjusting rod is parallel to the direction of movement of the rake teeth.

[0013] Preferably, the fixing rod can be rotatably connected to the second adjusting rod and locked in position, and the second adjusting rod can be rotatably connected to the first adjusting rod and locked in position.

[0014] Preferably, it also includes a waste residue collection device, which is located below the scraping device, and the waste residue scraped off by the scraping component can fall into the waste residue collection device under the action of gravity.

[0015] The present invention also provides a bar screen, including a frame, a bar screen assembly, and the aforementioned bar screen rake tooth cleaning device, wherein the bar screen assembly is connected to the frame, and the scraper shaft and the drive device are both used for fixed connection with the frame.

[0016] The present invention achieves the following technical effects compared to the prior art:

[0017] The bar screen cleaning device and bar screen machine provided by the present invention have each scraping component sleeved outside the scraping shaft and detachably fixedly connected to the scraping shaft. Multiple scraping components are arranged along the axial direction of the scraping shaft, and each scraping component can be fixedly connected to different positions along the axial direction of the scraping shaft. Therefore, the position of the scraping component can be flexibly adjusted according to the spacing between adjacent rake teeth in the bar screen machine, so that the spacing between adjacent scraping components matches the spacing between adjacent rake teeth, ensuring that the scraping component can extend into the space between adjacent rake teeth for cleaning work, thus improving the flexibility of application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of the grid rake tooth cleaning device in Example 1;

[0020] Figure 2 shows the positional relationship between the scraper component and the target teeth when the scraper component in Example 1 is not inserted into the gap between the rake teeth.

[0021] Figure 3 shows the positional relationship between the scraper component and the target teeth when the scraper component extends into the gap between the rake teeth in Example 1.

[0022] Figure 4 is a schematic diagram of the grid rake tooth cleaning device in Example 2;

[0023] Figure 5 is a schematic diagram of the connector in Embodiment 1.

[0024] In the diagram: 100, slag removal device; 200, bar screen machine; 1, slag scraping device; 101, slag scraping shaft; 102, slag scraping component; 2, drive device; 201, motor; 202, drive wheel; 203, conveyor belt; 204, driven wheel; 3, rake teeth; 4, first limiting component; 5, second limiting component; 6, support device; 601, first adjusting rod; 602, second adjusting rod; 603, fixing rod; 7, frame; 8, waste collection device; 9, connecting piece; 901, bolt; 902, clamping nut; 903, washer. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] The purpose of this invention is to provide a bar screen cleaning device and bar screen machine to solve the problems existing in the prior art. It has a simple structure and flexible application.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] As shown in Figures 1-3, this embodiment provides a grid rake tooth cleaning device 100, including a scraping device 1 and a driving device 2. The scraping device 1 includes a scraping shaft 101 and a plurality of scraping components 102. The scraping shaft 101 is connected to the output end of the driving device 2, and the driving device 2 can drive the scraping shaft 101 to rotate along the axis of the scraping shaft 101. Each scraping component 102 is sleeved on the outside of the scraping shaft 101 and is detachably fixedly connected to the scraping shaft 101. The plurality of scraping components 102 are arranged along the axial direction of the scraping shaft 101, and each scraping component 102 can be fixedly connected at different positions along the axial direction of the scraping shaft 101. A gap is left between two adjacent scraping components 102 for the rake teeth 3 of the grid device to extend into, and each scraping component 102 can extend into the gap between adjacent rake teeth 3. The bar screen rake tooth cleaning device 100 in this embodiment can flexibly adjust the position of the scraping component 102 according to the spacing between adjacent rake teeth 3 in the bar screen machine 200, so that the spacing between adjacent scraping components 102 matches the spacing between adjacent rake teeth 3, ensuring that the scraping component 102 can extend into the space between adjacent rake teeth 3 for cleaning, thus improving the flexibility of application. It should be noted that the scraping component 102 in this embodiment can be a scraping wheel or scraping teeth, as long as it can extend into the space between adjacent rake teeth 3 for scraping. The bar screen rake tooth cleaning device 100 is located on the back of the scraper machine 200, and there is at least one bar screen rake tooth cleaning device 100. In a preferred embodiment, the rotation direction of the scraper shaft 101 is opposite to the movement direction of the rake teeth 3, that is, one is clockwise and the other is counterclockwise. When the rake teeth 3 move to the position of the scraper component 102, the scraper component 102 can extend into the space between the adjacent rake teeth 3 and use its own rotation to transfer the residue between the rake teeth 3 to the surface of the scraper component 102 and be thrown out by the scraper component 102.

[0030] In a preferred embodiment, the drive device 2 includes a motor 201, a drive wheel 202, a conveyor belt 203, and a driven wheel 204. The motor 201 is fixedly connected to the frame 7 of the bar screen 200. The drive wheel 202 is fixedly connected to the output shaft of the motor 201. The drive wheel 202 and the driven wheel 204 are connected through the conveyor belt 203. One end of the scraper shaft 101 is fixedly connected to the driven wheel 204. When the motor 201 rotates, it drives the drive wheel 202 to rotate. The drive wheel 202 drives the conveyor belt 203 to rotate. The conveyor belt 203 drives the driven wheel 204 to rotate. The driven wheel 204 drives the scraper shaft 101 to rotate.

[0031] In a preferred embodiment, the grid rake tooth cleaning device 100 of this embodiment further includes a plurality of first limiting components 4. Each first limiting component 4 is sleeved on the outside of the scraper shaft 101 and detachably fixedly connected to the scraper shaft 101. At least one first limiting component 4 is provided between two adjacent scraper components 102. In a preferred embodiment, the first limiting component 4 is a limiting bearing. The first limiting component 4 of a corresponding length can be selected according to the thickness of the rake teeth 3 and the distance between two adjacent rake teeth 3 to ensure that at least one scraper component 102 extends between adjacent rake teeth 3 during installation.

[0032] In a preferred embodiment, the grid rake tooth cleaning device 100 of this embodiment further includes two second limiting components 5. Each second limiting component 5 is sleeved on the outside of the scraper shaft 101 and is detachably fixedly connected to the scraper shaft 101. Multiple scraper components 102 and multiple first limiting components 4 are disposed between the two second limiting components 5, and the two second limiting components 5 can clamp the multiple scraper components 102 and multiple first limiting components 4 to achieve a fixed connection between each scraper component 102 and each first limiting component 4 and the scraper shaft 101. When adjusting the spacing between the scraper components 102, only one or two second limiting components 5 need to be removed. Since the scraper components 102 and the first limiting components 4 are not fixed to the scraper shaft 101 using bolts 901 or similar means, the scraper components 102 and the first limiting components 4 can be quickly removed from the scraper shaft 101. Then, the first limiting components 4 of different lengths can be replaced and reassembled onto the scraper shaft 101. Finally, the second limiting components 5 are fixed to the scraper shaft 101 to clamp the multiple scraper components 102 and the multiple first limiting components 4. This facilitates disassembly, assembly, and adjustment, thus improving work efficiency.

[0033] The slag removal device 100 of this embodiment also includes a support device 6. The support device 6 includes a support assembly and a first adjusting rod 601. One end of the first adjusting rod 601 in the length direction is provided with a plurality of first mounting holes. The support assembly is used to be fixedly connected to the frame 7 of the bar screen 200, and the support assembly can be detachably fixedly connected to any one of the plurality of first mounting holes of the first adjusting rod 601. As a preferred embodiment, the support assembly also has mounting holes. The support assembly and the first adjusting rod 601 are detachably fixedly connected through a connector 9. As a more preferred embodiment, as shown in FIG5, the connector 9 includes a bolt 901, a clamping nut 902 and a washer 903. The bolt 901 passes through the washer 903, the support assembly, the first adjusting rod 601 and the washer 903 in sequence and is threadedly connected to the clamping nut 902. The scraper shaft 101 is fixedly connected to the other end of the first adjusting rod 601. The support assembly can adjust the distance between the scraper shaft 101 and the rake teeth 3 by connecting to the first mounting holes at different positions. On the one hand, it can adjust the depth of multiple scraping components 102 extending into the gap between adjacent rake teeth 3; on the other hand, it can adapt to various types of scrapers, so that the scraping components 102 can extend into the gap between adjacent rake teeth 3.

[0034] In a preferred embodiment, the scraper shaft 101 is arranged along the width direction of the frame 7 of the bar screen 200, the width direction of the frame 7 is perpendicular to the movement direction of the rake teeth 3, and the center line of the first adjusting rod 601 is perpendicular to the axis of the scraper shaft 101.

[0035] In a preferred embodiment, the support device 6 is in two sets, with a support device 6 provided at each end of the scraper shaft 101. That is, both ends of the scraper shaft 101 are connected to a first adjusting rod 601, so that both ends of the scraper shaft 101 are supported, thereby improving the stability of the slag cleaning device operation.

[0036] The grid rake tooth cleaning device 100 of this embodiment also includes a waste collection device 8, which is located below the scraper device 1, and the waste scraped off by the scraper component 102 can fall into the waste collection device 8 under the action of gravity.

[0037] In a preferred embodiment, the bar screen cleaning device 100 further includes a worktable, which is located below the scraper device 1, and a waste collection device 8 is placed above the worktable. The waste collection device 8 is preferably a screw conveyor.

[0038] Example 2

[0039] The difference between this embodiment and the grid rake tooth cleaning device 100 in Embodiment 1 is that:

[0040] As shown in Figure 4, the support assembly includes a second adjusting rod 602 and a fixing rod 603. One end of the second adjusting rod 602 along its length has multiple second mounting holes. One end of the fixing rod 603 is fixedly connected to the frame 7 of the bar screen machine 200. The other end of the fixing rod 603 can be detachably fixedly connected to any one of the multiple second mounting holes on the second adjusting rod 602. The other end of the second adjusting rod 602 can be detachably fixedly connected to any one of the multiple first mounting holes on the first adjusting rod 601. In a preferred embodiment, the end of the fixing rod 603 near the second adjusting rod 602 and the end of the second adjusting rod 602 near the first adjusting rod 601 also have mounting holes. The fixing rod 603 and the second adjusting rod 602 are detachably fixedly connected via a connector 9, and the second adjusting rod 602 and the first adjusting rod 601 are detachably fixedly connected via a connector 9.

[0041] In a preferred embodiment, the centerline of the second adjusting rod 602 is parallel to the direction of movement of the rake teeth 3. Since the second adjusting rod 602 extends along the direction of movement of the rake teeth 3, the fixing rod 603 is installed through a different second mounting hole than the second adjusting rod 602, which allows the height of the scraper shaft 101 to be adjusted, thereby changing the installation position of the scraper shaft 101 and improving the ease of installation.

[0042] All other structures in this embodiment are the same as those in Embodiment 1.

[0043] Example 3

[0044] The difference between this embodiment and the grid rake tooth cleaning device 100 in Embodiment 2 is that:

[0045] The fixed rod 603 can be rotatably connected to and locked in position with the second adjusting rod 602, and the second adjusting rod 602 can be rotatably connected to and locked in position with the first adjusting rod 601. In a preferred embodiment, the mounting holes at the end of the fixed rod 603 near the second adjusting rod 602, the end of the second adjusting rod 602 near the first adjusting rod 601, the first mounting hole, and the second mounting hole are all cylindrical holes. Before fixing the fixed rod 603 and the second adjusting rod 602 to each other using the connector 9, the angle between them can be adjusted according to installation requirements. Then, the fixing and locking of the fixed rod 603 and the second adjusting rod 602 is achieved through the connector 9, thereby adjusting the angle between them. Similarly, the angle between the second adjusting rod 602 and the first adjusting rod 601 can be adjusted, ensuring that the scraper wheel can be installed to the appropriate position quickly and easily, reducing the workload of installation and adjustment, and improving work efficiency.

[0046] All other structures in this embodiment are the same as those in Embodiment 1.

[0047] Example 4

[0048] As shown in Figure 4, this embodiment provides a bar screen 200, including a frame 7, a bar screen assembly, and the bar screen rake tooth cleaning device 100 from Embodiment 1. The bar screen assembly is connected to the frame 7, and the scraper shaft 101 and the drive device 2 are both fixedly connected to the frame 7. It should be noted that the main body of the bar screen 200 (such as the frame 7, the bar screen, the bar screen drive device 2, etc.) are all existing technologies. This embodiment adds the bar screen rake tooth cleaning device 100 to the main body of the bar screen 200 to achieve the self-cleaning function of the bar screen 200.

[0049] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A screen rake tooth cleaning device, characterized in that: The device includes a slag scraping device and a driving device. The slag scraping device includes a slag scraping shaft and multiple slag scraping components. The slag scraping shaft is connected to the output end of the driving device, and the driving device can drive the slag scraping shaft to rotate along the axis of the slag scraping shaft. Each of the slag scraping components is sleeved on the slag scraping shaft and is detachably fixedly connected to the slag scraping shaft. The multiple slag scraping components are arranged along the axial direction of the slag scraping shaft, and each slag scraping component can be fixedly connected at different positions along the axial direction of the slag scraping shaft. A gap is left between two adjacent slag scraping components for the rake teeth of the grid device to extend into, and each slag scraping component can extend into the gap between adjacent rake teeth.

2. The screen rake tooth cleaning device according to claim 1, characterized in that: It also includes a plurality of first limiting components, each of which is sleeved on the outside of the scraper shaft and detachably fixedly connected to the scraper shaft, and at least one first limiting component is provided between two adjacent scraper components.

3. The screen rake tooth cleaning device according to claim 2, characterized in that: It also includes two second limiting components, each of which is sleeved on the outside of the scraper shaft and detachably fixedly connected to the scraper shaft. Multiple scraper components and multiple first limiting components are disposed between the two second limiting components, and the two second limiting components can clamp the multiple scraper components and multiple first limiting components to achieve a fixed connection between each scraper component and each first limiting component and the scraper shaft.

4. The screen rake tooth cleaning device according to claim 1, characterized in that: It also includes a support device, which includes a support assembly and a first adjusting rod. One end of the first adjusting rod in the length direction is provided with a plurality of first mounting holes. The support assembly is used to be fixedly connected to the bar screen machine, and the support assembly can be detachably fixedly connected to any one of the plurality of first mounting holes of the first adjusting rod. The scraper shaft is fixedly connected to the other end of the first adjusting rod. The support assembly can adjust the distance between the scraper shaft and the rake teeth by connecting to the first mounting holes at different positions.

5. The screen rake tooth cleaning device according to claim 4, characterized in that: The scraper shaft is arranged along the width direction of the frame of the bar screen, and the center line of the first adjusting rod is perpendicular to the axis of the scraper shaft.

6. The screen rake tooth cleaning device according to claim 5, characterized in that: The support assembly includes a second adjusting rod and a fixing rod. One end of the second adjusting rod along its length is provided with a plurality of second mounting holes. One end of the fixing rod is used to be fixedly connected to the bar screen machine. The other end of the fixing rod can be detachably fixedly connected to any one of the plurality of second mounting holes on the second adjusting rod. The other end of the second adjusting rod can be detachably fixedly connected to any one of the plurality of first mounting holes on the first adjusting rod.

7. The screen rake tooth cleaning device according to claim 6, characterized in that: The centerline of the second adjusting rod is parallel to the direction of movement of the rake teeth.

8. The screen rake tooth cleaning device according to claim 6, characterized in that: The fixed rod can be rotatably connected to the second adjusting rod and locked in position, and the second adjusting rod can be rotatably connected to the first adjusting rod and locked in position.

9. The screen rake tooth cleaning device according to claim 1, characterized in that: It also includes a waste collection device, which is located below the scraping device, and the waste scraped off by the scraping component can fall into the waste collection device under the action of gravity.

10. A bar screen machine, characterized in that: The device includes a frame, a screen assembly, and a screen rake tooth cleaning device as described in any one of claims 1-9, wherein the screen assembly is connected to the frame, and the scraper shaft and the drive device are both fixedly connected to the frame.

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