Centrifugal machine mud outlet knife gate valve with flushing function

Abstract

The utility model discloses a centrifugal machine mud outlet knife gate valve with a flushing function, which comprises a knife gate valve arranged at a centrifugal machine mud outlet, the knife gate valve comprises a valve body, the valve body is provided with a feed port and a discharge port which are communicated with each other, and a valve plate positioned in the valve body is arranged on a path where the feed port is communicated with the discharge port. The valve plate is used for conveying materials of the feeding port to the discharging port, a driving assembly for driving the valve plate to be connected or disconnected with a path between the feeding port and the discharging port is arranged on the side wall of the valve body, and an angle-adjustable cleaning assembly used for cleaning the valve plate is further arranged in the valve body. According to the utility model, the cleaning assembly is arranged in the knife gate valve, so that sludge adhered to the valve plate can be cleaned in the process that the centrifugal machine is washed, and the normal operation of the centrifugal machine in the cleaning process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of knife gate valves, in particular to a centrifuge mud discharge knife gate valve with a flushing function. Background Art

[0002] The centrifuge equipment used for sludge treatment in sewage treatment operates on the principle of separating dry mud and sewage through high-speed centrifugation. During normal operation, the mud outlet outputs dry sludge. The centrifuge needs to be flushed before debugging and stopping the equipment. A centrifuge mud outlet knife gate valve is set. During the normal mud discharge process, the knife gate valve is opened and the sludge passes through the knife gate valve normally and vertically into the bottom hopper. During the flushing process, the knife gate valve is closed and the centrifuge discharges the mixture of cleaned sewage and sludge. During the flushing process of the centrifuge, the mixture of sewage and mud will adhere to the valve plate, causing the valve to be blocked, resulting in the obstruction of the cleaning process of the centrifuge. Utility Model Content

[0003] The utility model aims to provide a centrifuge mud discharge knife gate valve with a flushing function. A cleaning component is arranged in the knife gate valve, which can clean the sludge adhered to the valve plate during the centrifuge being flushed, thereby ensuring that the centrifuge cleaning process can operate normally.

[0004] In order to solve the above technical problems, the present invention adopts the following solutions:

[0005] A centrifuge mud discharge knife gate valve with a flushing function comprises a knife gate valve installed at the mud discharge port of the centrifuge, the knife gate valve comprising a valve body, the valve body being provided with a feed port and a discharge port connected to each other, a valve plate located in the valve body being provided on the path connecting the feed port and the discharge port, the valve plate being used to transport the material from the feed port to the discharge port, a driving component for driving the valve plate to connect or close the path between the feed port and the discharge port being provided on the side wall of the valve body, and a cleaning component with an adjustable angle for cleaning the valve plate being further provided in the valve body.

[0006] In this solution, the valve body is installed on the mud outlet of the centrifuge. The valve body serves as the main part of the entire knife gate valve. The valve body is provided with a feed port and a discharge port that are connected to each other. These two ports are the main channels for material flow. The valve plate is located on the path connecting the feed port and the discharge port in the valve body. The main function of the valve plate is to smoothly transport the material from the feed port to the discharge port to ensure the continuity of material flow. The drive assembly is installed on the side wall of the valve body to drive the valve plate to connect or close the path between the feed port and the discharge port. In this way, the flow of materials can be flexibly controlled according to actual needs. The cleaning assembly is also located in the valve body. The cleaning assembly can adjust the angle to better clean the residue on the valve plate to prevent blockage and accumulation.

[0007] When it is necessary to convey materials, the drive assembly will start and push the valve plate to the appropriate position to form a smooth channel between the feed port and the discharge port. The material will flow from the feed port along this channel, pass through the valve plate, and finally flow out from the discharge port. During the cleaning process of the centrifuge, sludge will adhere to the valve plate, resulting in poor flow or blockage. At this time, the angle of the cleaning assembly can be adjusted to flush the sludge on the valve plate. The opening and closing of the valve plate can be flexibly controlled by the drive assembly to meet different material conveying requirements. The cleaning assembly with adjustable angle can effectively clean the sludge on the valve plate, avoid clogging of the knife gate valve, reduce maintenance costs, and ensure the normal operation of the centrifuge cleaning process.

[0008] Optionally, the valve plate is inclined and movably arranged in the valve body, the end of the valve plate adjacent to the feed port is the head end, and the end adjacent to the discharge port is the lower end, the head end is higher than the lower end, the driving component drives the valve plate to move along the surface where its inclined direction is located and connects or closes the path between the feed port and the discharge port, and the cleaning component is arranged on one side of the head end of the valve plate.

[0009] Optionally, the cleaning assembly includes a cleaning pipe and a nozzle. The cleaning pipe passes through the valve body and is movably connected to the valve body. One end of the cleaning pipe is closed and the other end is connected to an external water source. The nozzles are distributed at intervals along the length of the cleaning pipe. The nozzles are located inside the valve body, above the valve plate, and below the feed port, and the spray direction of the nozzles is toward the surface of the valve plate.

[0010] Optionally, a solenoid valve is provided on the pipeline connecting the cleaning pipe to the external water source, and a booster pump is provided on the pipeline connecting the solenoid valve to the external water source.

[0011] Optionally, a driven gear is fixed on the cleaning pipe, the driven gear is located at the closed end of the cleaning pipe, a rotating motor is fixed on the side wall of the valve body, and a driving gear meshing with the driven gear is fixed on the output shaft of the rotating motor.

[0012] Optionally, the rotation angle of the cleaning pipe is 0°-90°.

[0013] Optionally, the drive assembly includes a drive motor, a drive gear, and a rack. The drive motor is arranged on one side of the valve body. The output shaft of the drive motor passes through the valve body and is movably connected to the valve body. A drive gear located in the valve body is fixed on the output shaft. The rack is connected to the bottom surface of the valve plate, and the rack is engaged with the drive gear.

[0014] Optionally, a guide rail in contact with the bottom surface of the valve plate is provided on the inner wall of the valve body, the guide rail is parallel to the inclination direction of the valve plate, and the guide rail is located on the side of the driving gear.

[0015] Optionally, a sealing strip is provided above the guide rail, the sealing strip is connected to the inner wall of the valve body, and both ends of the valve plate are located between the sealing strip and the guide rail.

[0016] Optionally, an inspection door is further provided on the valve body, and an electric control box for controlling the cleaning component and the driving component is provided on the side of the valve body.

[0017] The utility model has the beneficial effects:

[0018] 1. In the utility model, during the cleaning process of the centrifuge, the angle of the cleaning component can be adjusted so that it is aimed at the sludge on the valve plate for flushing. The cleaning component with adjustable angle can effectively clean the sludge on the valve plate, avoid clogging of the knife gate valve, reduce maintenance costs, and ensure the normal operation of the centrifuge cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of this utility;

[0022] Figure 4 This is the structural diagram of the assembly of the knife gate valve and the centrifuge mud outlet.

[0023] Figure numerals: 1-cleaning pipe, 2-nozzle, 3-valve body, 4-rack, 5-drive gear, 6-inspection door, 7-electric control box, 8-centrifuge, 9-solenoid valve, 10-drive motor, 11-valve plate, 12-sealing strip, 13-guide rail, 14-feed port, 15-discharge port, 16-rotating motor, 17-driving gear, 18-driven gear, 19-knife gate valve, 20-mud outlet. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "opened," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] Example

[0028] A centrifuge mud discharge knife gate valve with a flushing function includes a knife gate valve 19 installed at the mud outlet 20 of the centrifuge 8, the knife gate valve 19 includes a valve body 3, the valve body 3 is provided with a feed port 14 and a discharge port 15 connected to each other, a valve plate 11 located in the valve body 3 is provided on the path connecting the feed port 14 and the discharge port 15, the valve plate 11 is used to transport the material from the feed port 14 to the discharge port 15, a driving component for driving the valve plate 11 to connect or close the path between the feed port 14 and the discharge port 15 is provided on the side wall of the valve body 3, and a cleaning component with an adjustable angle for cleaning the valve plate 11 is also provided in the valve body 3.

[0029] In this embodiment, Figure 4 As shown, the valve body 3 is installed on the mud outlet 20 of the centrifuge 8. The centrifuge 8 is an existing equipment. The valve body 3 serves as the main part of the entire knife gate valve 19. The valve body 3 is provided with a feed port 14 and a discharge port 15 that are connected to each other. These two ports are the main channels for material flow. The valve plate 11 is located on the path where the feed port 14 and the discharge port 15 are connected in the valve body 3. The main function of the valve plate 11 is to smoothly transport the material from the feed port 14 to the discharge port 15 to ensure the continuity of the material flow. The drive assembly is installed on the side wall of the valve body 3, and is used to drive the valve plate 11 to connect or close the path between the feed port 14 and the discharge port 15. In this way, the flow of materials can be flexibly controlled according to actual needs. The cleaning assembly is also located in the valve body 3. The cleaning assembly can adjust the angle to better clean the residue on the valve plate 11 to prevent blockage and accumulation.

[0030] like Figure 1-Figure 3As shown, when it is necessary to convey materials, the drive component will start and push the valve plate 11 to the appropriate position, so that a smooth channel is formed between the feed port 14 and the discharge port 15. The material will flow into the feed port 14 along this channel, pass through the valve plate 11, and finally flow out from the discharge port 15. During the cleaning process of the centrifuge 8, sludge will adhere to the valve plate 11, resulting in poor flow or blockage. At this time, the angle of the cleaning component can be adjusted to align it with the sludge on the valve plate 11 for flushing. The opening and closing of the valve plate 11 can be flexibly controlled by the drive component to meet different material conveying requirements. The cleaning component with adjustable angle can effectively clean the sludge on the valve plate 11, avoid blockage of the knife gate valve 19, reduce maintenance costs, and ensure the normal operation of the cleaning process of the centrifuge 8.

[0031] Furthermore, the valve plate 11 is inclined and movably arranged in the valve body 3, the end of the valve plate 11 adjacent to the feed port 14 is the head end, and the end adjacent to the discharge port 15 is the lower end, the head end is higher than the lower end, and the driving component drives the valve plate 11 to move along the surface where its inclined direction is located and connects or closes the path between the feed port 14 and the discharge port 15, and the cleaning component is arranged on the side of the head end of the valve plate 11.

[0032] Furthermore, the cleaning assembly includes a cleaning pipe 1 and a nozzle 2. The cleaning pipe 1 passes through the valve body 3 and is movably connected to the valve body 3. One end of the cleaning pipe 1 is closed and the other end is connected to an external water source. The nozzles 2 are distributed at intervals along the length of the cleaning pipe 1. The nozzles 2 are located inside the valve body 3, above the valve plate 11, and below the feed port 14, and the spraying direction of the nozzle 2 is toward the surface of the valve plate 11.

[0033] Furthermore, a solenoid valve 9 is provided on the pipeline connecting the cleaning pipe 1 to the external water source, and a booster pump is provided on the pipeline connecting the solenoid valve 9 to the external water source.

[0034] Furthermore, a driven gear 18 is fixed on the cleaning pipe 1, and the driven gear 18 is located at the closed end of the cleaning pipe 1. A rotating motor 16 is fixed on the side wall of the valve body 3, and a driving gear 17 meshing with the driven gear 18 is fixed on the output shaft of the rotating motor 16.

[0035] Furthermore, the rotation angle of the cleaning pipe 1 is 0°-90°.

[0036] Specifically, such as Figure 1As shown, the valve plate 11 is tilted in the valve body 3, with the head end higher than the lower end, that is, the right end higher than the left end. This design helps the material to flow naturally under the action of gravity and reduces the risk of blockage. The valve plate 11 can move along its tilted direction, and the drive component controls the valve plate 11 to open or close the path between the feed port 14 and the discharge port 15. The cleaning pipe 1 passes through the valve body 3 and is movably connected to the valve body 3. One end is closed and the other end is connected to an external water source. The external water source can be a tap water pipe or a water tank. The nozzles 2 are spaced apart along the length of the cleaning pipe 1 and are located in the valve body 3, above the valve plate 11, and below the feed port 14. This layout ensures that the cleaning liquid can evenly cover the surface of the valve plate 11 and effectively remove the sludge output by the centrifuge 8. The spray direction of the nozzle 2 is toward the surface of the valve plate 11, ensuring that the cleaning liquid can directly impact the residue on the valve plate 11, thereby improving the cleaning effect. The pipeline connecting the cleaning pipe 1 to the external water source is provided with a solenoid valve 9 and a booster pump. The solenoid valve 9 is used to control the cleaning. The booster pump provides sufficient pressure to ensure that the cleaning liquid can penetrate and remove stubborn adhesive sludge. A driven gear 18 is fixed to the cleaning pipe 1, and a rotating motor 16 is fixed to the side wall of the valve body 3. A driving gear 17 that meshes with the driven gear 18 is fixed to the output shaft of the rotating motor 16. This design allows the cleaning pipe 1 to rotate under the drive of the rotating motor 16, thereby adjusting the spray angle of the nozzle 2 to ensure that the cleaning liquid can cover all areas on the valve plate 11. The rotation angle of the cleaning pipe 1 is 0°-90°, which means that the nozzle 2 can be adjusted between vertical and horizontal directions to adapt to different cleaning needs. In order to adapt to the rotation of the cleaning pipe 1, a rotary joint can be set between the cleaning pipe 1 and the solenoid valve 9.

[0037] Furthermore, the driving assembly includes a driving motor 10, a driving gear 5, and a rack 4. The driving motor 10 is arranged on one side of the valve body 3. The output shaft of the driving motor 10 passes through the valve body 3 and is movably connected to the valve body 3. The output shaft is fixed with a driving gear 5 located in the valve body 3. The rack 4 is connected to the bottom surface of the valve plate 11, and the rack 4 is engaged with the driving gear 5.

[0038] Furthermore, a guide rail 13 in contact with the bottom surface of the valve plate 11 is provided on the inner wall of the valve body 3 . The guide rail 13 is parallel to the tilt direction of the valve plate 11 , and is located on the side of the driving gear 5 .

[0039] Specifically, such as Figure 3As shown, the drive motor 10 is arranged on one side of the valve body 3 to provide power for the entire drive assembly. By controlling the forward and reverse rotation of the drive motor 10, the valve plate 11 can be opened and closed. The output shaft of the drive motor 10 passes through the valve body 3 and is movably connected to the valve body 3. A drive gear 5 located in the valve body 3 is fixed on the output shaft. Two drive gears 5 are arranged at intervals on the output shaft. The rack 4 is connected to the bottom surface of the valve plate 11. Two racks 4 are provided on the bottom surface of the valve plate 11. The rack 4 is engaged with the drive gear 5. When the drive motor 10 rotates, the drive The gear 5 will drive the rack 4 to move along its tooth surface, thereby pushing the valve plate 11 to move along its tilted direction. A guide rail 13 in contact with the bottom surface of the valve plate 11 is provided on the inner wall of the valve body 3. The guide rail 13 is parallel to the tilted direction of the valve plate 11. This guide rail 13 guides and supports the valve plate 11, ensuring that the valve plate 11 remains stable during movement. The guide rail 13 is located on the side of the driving gear 5, forming a certain spatial interval with the rack 4. This layout avoids interference between the guide rail 13 and the rack 4, ensuring the smooth operation of the drive assembly.

[0040] Furthermore, a sealing strip 12 is provided above the guide rail 13 , the sealing strip 12 is connected to the inner wall of the valve body 3 , and both ends of the valve plate 11 are located between the sealing strip 12 and the guide rail 13 .

[0041] Further, such as Figure 2 As shown, the valve body 3 is further provided with an inspection door 6, and an electric control box 7 for controlling the cleaning component and the drive component is provided on the side of the valve body 3. Specifically, the inspection door 6 can be opened to facilitate staff to inspect the interior of the valve body 3. The electric control box 7 can automatically control the start and stop of the solenoid valve 9 and the drive motor 10, as well as the rotation direction and angle range of the output shaft of the rotary motor 16, so as to better control the spray angle of the nozzle 2 and improve the cleaning coverage.

[0042] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Based on the technical essence of the present invention and within the spirit and principles of the present invention, any simple modification, equivalent replacement and improvement of the above embodiment shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A centrifuge mud outlet knife gate valve with flushing function, comprising a knife gate valve (19) installed at a mud outlet (20) of a centrifuge (8), characterized in that: The knife gate valve (19) includes a valve body (3), the valve body (3) is provided with a feed port (14) and a discharge port (15) that are connected to each other, a valve plate (11) located in the valve body (3) is provided on the path connecting the feed port (14) and the discharge port (15), the valve plate (11) is used to transport the material from the feed port (14) to the discharge port (15), a driving component for driving the valve plate (11) to connect or close the path between the feed port (14) and the discharge port (15) is provided on the side wall of the valve body (3), and a cleaning component with an adjustable angle for cleaning the valve plate (11) is also provided in the valve body (3).

2. A centrifuge mud discharge knife gate valve with flushing function according to claim 1, characterized in that: The valve plate (11) is tilted and movably arranged in the valve body (3), the end of the valve plate (11) adjacent to the feed port (14) is the head end, and the end adjacent to the discharge port (15) is the lower end, and the head end is higher than the lower end. The driving component drives the valve plate (11) to move along the surface where the valve plate is tilted and connects or closes the path between the feed port (14) and the discharge port (15), and the cleaning component is arranged on one side of the head end of the valve plate (11).

3. The centrifuge mud discharge knife gate valve with flushing function according to claim 2, characterized in that: The cleaning assembly comprises a cleaning pipe (1) and a nozzle (2). The cleaning pipe (1) passes through the valve body (3) and is movably connected to the valve body (3). One end of the cleaning pipe (1) is closed, and the other end is connected to an external water source. The nozzles (2) are spaced apart along the length of the cleaning pipe (1). The nozzles (2) are located inside the valve body (3), above the valve plate (11), and below the feed port (14), and the spraying direction of the nozzles (2) is toward the surface of the valve plate (11).

4. The centrifuge mud discharge knife gate valve with flushing function according to claim 3, characterized in that: A solenoid valve (9) is provided on the pipeline connecting the cleaning pipe (1) to the external water source, and a booster pump is provided on the pipeline connecting the solenoid valve (9) to the external water source.

5. The centrifuge mud discharge knife gate valve with flushing function according to claim 4, characterized in that: A driven gear (18) is fixed on the cleaning pipe (1), and the driven gear (18) is located at the closed end of the cleaning pipe (1). A rotating motor (16) is fixed on the side wall of the valve body (3), and a driving gear (17) meshing with the driven gear (18) is fixed on the output shaft of the rotating motor (16).

6. The centrifuge mud discharge knife gate valve with flushing function according to claim 5, characterized in that: The rotation angle of the cleaning pipe (1) is 0°-90°.

7. The centrifuge mud discharge knife gate valve with flushing function according to claim 2, characterized in that: The driving assembly comprises a driving motor (10), a driving gear (5), and a rack (4). The driving motor (10) is arranged on one side of the valve body (3). The output shaft of the driving motor (10) passes through the valve body (3) and is movably connected to the valve body (3). The output shaft is fixed with a driving gear (5) located in the valve body (3). The rack (4) is connected to the bottom surface of the valve plate (11), and the rack (4) is meshed with the driving gear (5).

8. The centrifuge mud discharge knife gate valve with flushing function according to claim 7, characterized in that: A guide rail (13) in contact with the bottom surface of the valve plate (11) is provided on the inner wall of the valve body (3). The guide rail (13) is parallel to the inclination direction of the valve plate (11). The guide rail (13) is located on the side of the driving gear (5).

9. The centrifuge mud discharge knife gate valve with flushing function according to claim 8, characterized in that: A sealing strip (12) is provided above the guide rail (13), the sealing strip (12) is connected to the inner wall of the valve body (3), and both ends of the valve plate (11) are located between the sealing strip (12) and the guide rail (13).

10. The centrifuge mud discharge knife gate valve with flushing function according to claim 1, characterized in that: The valve body (3) is also provided with an inspection door (6), and an electric control box (7) for controlling the cleaning component and the driving component is provided on the side of the valve body (3).

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