A semi-bridge type squeegee suction dredger equipped with a centrifugal blower

Abstract

The utility model discloses a half bridge type scrape suction mud machine equipped with centrifugal blower, this scrape suction mud machine includes the center support, and the center support top is provided with the bridge frame of horizontal, and the bridge frame end is provided with the drive mechanism, and sets up the rest grid strip combination under the bridge frame, and is provided with a plurality of suction mechanism on the rest grid strip combination, and a plurality of suction mechanism are arranged along the length direction of bridge frame and are connected on the mud discharge pipe, and the mud discharge pipe is connected with the suction device, and the scrape suction mud machine still includes centrifugal blower, and centrifugal blower sends high pressure gas into the suction port place of each suction mechanism through the air pipe, and the bottom of suction mechanism is provided with the inclined bracket plate, and the bracket plate pushes the sludge to the center support direction movement, and the suction port place of the sludge of closer center support, and the more compressed air of inhaled, and the high pressure air is inhaled through centrifugal blower at the suction port of scrape suction mud machine, makes it spouts the sludge, improves the mud water separation effect, and is convenient for scrape suction mud machine suction.

Description

Technical Field

[0001] This utility model belongs to the technical field of sludge scraper and suction machine, and more specifically, it relates to a half-bridge sludge scraper and suction machine equipped with a centrifugal blower. Background Technology

[0002] Sludge suction machines are used in sewage treatment plants and waterworks in horizontal flow sedimentation tanks. They scrape the sludge that has settled on the bottom of the tank to the sludge suction port of the pump, and then pump it out of the tank while the machine is moving.

[0003] In wastewater treatment facilities, working tanks are divided into multiple sections according to different processes. Generally, the sludge in the secondary sedimentation tank is larger and more viscous than the sludge in the coagulation sedimentation tank, making it difficult to pass through a standard scraper / suction machine. Therefore, to ensure cleaning effectiveness, further optimization of the facility is needed. For example, Chinese utility model patent CN204637676U utilizes a structure where an air pipe is inserted inside the corresponding suction pipe to ensure the stability of airflow within the air pipe of the airlift suction device, significantly improving the airlift effect. This can meet the sludge discharge requirements of large quantities of highly viscous sludge in coagulation sedimentation tanks in wastewater treatment, exhibiting good operational performance and improving sludge-water separation, ensuring that the water quality meets discharge standards while significantly increasing efficiency compared to traditional scraper / suction machines. However, the structure where the air pipe directly acts on the inside of the suction pipe still suffers from the problem of highly viscous sludge at the suction port, which still affects the suction effect. Therefore, further improvements are needed to further enhance the suction effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a semi-bridge type scraper-suction sludge machine equipped with a centrifugal blower. High-pressure air is introduced through the centrifugal blower at the sludge suction port of the scraper-suction sludge, causing it to be sprayed and agitated, improving the sludge-water separation effect and facilitating suction by the scraper-suction sludge machine. This solves the technical problem in existing technologies where the sludge in the secondary sedimentation tank is highly viscous, making it difficult to suck it up at the suction port of the scraper-suction sludge machine.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a semi-bridge type scraper and suction sludge machine equipped with a centrifugal blower, including a central support, a transverse bridge frame at the top of the central support, a drive mechanism at the end of the bridge frame, a set of residual grid bars below the bridge frame, and multiple suction mechanisms on the residual grid bar set. The multiple suction mechanisms are arranged along the length of the bridge frame and connected to a sludge discharge pipe, and a suction device is connected to the sludge discharge pipe. The key feature is that it also includes a centrifugal blower, which sends high-pressure gas to the suction port of each suction mechanism through an air pipe. An inclined scraper is provided at the bottom of the suction mechanism, and the scraper pushes the sludge towards the central support. The closer to the suction port of the central support, the more compressed air is introduced.

[0006] Optionally, the air pipe path between the sludge suction port and the centrifugal blower is shorter the closer the sludge suction port is to the central support.

[0007] Optionally, a control valve is provided on the air pipe corresponding to each of the suction ports to control the amount of air introduced into the suction ports.

[0008] Optionally, in the air pipe path between the sludge suction port and the centrifugal blower, the path is shorter for the sludge suction port that is closer to the central support, and a control valve is provided on the air pipe corresponding to each sludge suction port to control the amount of air introduced into the sludge suction port.

[0009] Optionally, the sludge suction mechanism includes a flat-mouthed cover, one side of which is the scraper plate and the other side has a notch, which is the sludge suction port. A sludge suction pipe is connected to the cover and the sludge discharge pipe is connected to the sludge discharge pipe.

[0010] Optionally, the end of the air pipe is provided with a strip-shaped nozzle, which is arranged parallel to and directly above the sludge suction port.

[0011] Optionally, the spray direction of the nozzle in the strip-shaped shower head forms an angle with the ground.

[0012] Optionally, the suction pipe is provided with a fixed support lug, and the air pipe is installed on the support lug.

[0013] Optionally, the centrifugal blower is located on the bridge.

[0014] Optionally, the drive mechanism includes a mounting base, in which rollers are provided, and the rollers are connected to a control motor via a transmission assembly.

[0015] This utility model provides a semi-bridge type scraper and suction sludge machine equipped with a centrifugal blower, which has the following beneficial effects:

[0016] 1. By using a centrifugal blower to introduce high-pressure air at the suction port of the sludge scraper, the sludge is sprayed and agitated, improving the sludge-water separation effect and facilitating the suction of the sludge scraper.

[0017] 2. When sucking sludge at the suction port, the scraper scrapes away the excess sludge that has not been absorbed, allowing it to be transferred step by step. This causes the sludge to move towards the center of the circular sedimentation tank. The closer the suction port is to the central support, the more compressed air is introduced. This ensures that the suction mechanism has a better suction effect in areas with more sludge, thus improving its overall performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the semi-bridge scraper-suction sludge machine provided in this embodiment;

[0019] Figure 2 This is a structural schematic diagram of the application scenario of the semi-bridge scraper and suction sludge machine provided in this embodiment;

[0020] Figure 3 This is a schematic diagram of the sludge suction mechanism and its mounting components provided in this embodiment;

[0021] Figure 4 This is a schematic diagram of the side structure of the mud suction mechanism and its mounting components provided in this embodiment;

[0022] Figure 5 This is a schematic diagram of the drive mechanism provided in this embodiment.

[0023] In the diagram: 1. Central support; 2. Cable tray; 3. Drive mechanism; 31. Mounting base; 32. Roller; 33. Control motor; 34. Transmission assembly; 4. Residual grid bar assembly; 5. Sludge suction mechanism; 51. Sludge suction port; 52. Squeegee; 53. Cover; 54. Sludge suction pipe; 55. Support lug; 6. Centrifugal blower; 61. Air pipe; 62. Control valve; 63. Strip-shaped nozzle; 64. Spray nozzle; 7. Sludge discharge pipe; 8. Circular sedimentation tank; 81. Upper edge of sedimentation tank. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] This utility model provides the following technical solution:

[0026] Example 1:

[0027] A semi-bridge scraper-suction sludge machine equipped with a centrifugal blower, such as Figure 1 Figure 2As shown, the semi-bridge sludge scraper structure includes a central support 1, which is erected at the center of the circular sedimentation tank 8. A transverse bridge 2 is provided at the top of the central support 1, extending to the upper edge 81 of the sedimentation tank. A drive mechanism 3 is provided at the end of the bridge 2, which also supports the bridge 2. The drive mechanism 3 rests on the upper edge 81 of the sedimentation tank, using the upper edge 81 of the sedimentation tank as the track for the drive mechanism 3 to move.

[0028] A set of residual bar assembly 4 is set below the cable tray 2. Multiple sludge suction mechanisms 5 are set on the residual bar assembly 4. The multiple sludge suction mechanisms 5 are arranged along the length of the cable tray 2 and connected to the sludge discharge pipe 7. The sludge suction mechanism 5 is vertically downward and its bottom contacts the bottom of the circular sedimentation tank 8. A suction device is connected to the sludge discharge pipe 7. The suction device is used in conjunction with the multiple sludge suction mechanisms 5 to suck up the sludge in the circular sedimentation tank 8.

[0029] In addition, the semi-bridge type scraper and suction sludge machine structure also includes a centrifugal blower 6, which is located on the bridge frame 2. The centrifugal blower 6 mainly consists of a motor, a working wheel (impeller), a diffuser, a volute, and other components. The motor drives the working wheel to rotate, generating centrifugal force to compress air and form a high-pressure, high-speed airflow. The centrifugal blower 6 delivers the high-pressure gas to the suction port 51 of each sludge suction mechanism 5 through the air pipe 61.

[0030] The advantages of introducing high-pressure, high-speed airflow are: ensuring the stability of airflow within the sludge suction mechanism 5, significantly improving the airlift effect, and meeting the sludge discharge requirements of large quantities of highly viscous sludge in coagulation and sedimentation tanks in wastewater treatment. In addition, this method has excellent operational performance and improves sludge-water separation, ensuring that water quality meets discharge standards while significantly increasing efficiency compared to traditional scraper-suction sludge machines.

[0031] The advantages of using centrifugal blower 6 are: it provides stronger airflow, effectively improving the sludge suction efficiency of the semi-bridge sludge scraper, ensuring timely sludge discharge, and enhancing wastewater treatment. Compared to traditional blowers, centrifugal blower 6 has higher operating efficiency and lower energy consumption, helping to reduce the overall operating cost of the semi-bridge sludge scraper. Furthermore, centrifugal blower 6 uses non-contact, oil-free magnetic bearings, resulting in low maintenance costs and extended equipment lifespan.

[0032] To further improve the sludge removal effect, an inclined scraper 52 is provided at the bottom of the sludge suction mechanism 5. The scraper 52 pushes the sludge towards the central support 1. The closer to the sludge suction port 51 of the central support 1, the more compressed air is introduced. This achieves the goal of better sludge suction effect of the sludge suction mechanism 5 in areas with more sludge, thus making it more effective.

[0033] To ensure that more compressed air is introduced closer to the suction port 51 of the central support 1, this embodiment employs the following method: the path of the air pipe 61 between the suction port 51 and the centrifugal blower 6 is shorter the closer it is to the suction port 51 of the central support 1. This can be understood as the various branch air pipes connecting to the main pipe forming a tree-like pipe structure. The reason for the greater airflow due to the shorter of this tree-like pipe is mainly as follows:

[0034] Relationship between pressure difference and flow rate:

[0035] In a tree-like pipe system, gas flows from high-pressure areas to low-pressure areas. The shorter the pipe, the smaller the frictional and local losses along the way, and the larger the pressure difference, which leads to an increase in flow velocity.

[0036] Inertia effect:

[0037] In shorter pipes, the inertial effect of airflow is relatively more significant. When airflow enters a shorter pipe, due to the sudden contraction of the pipe, the inertia of the airflow causes it to maintain a higher velocity, thus creating a larger flow velocity within the pipe.

[0038] Energy dissipation:

[0039] The longer the pipe, the more energy is dissipated. In shorter pipes, less energy is dissipated, and more energy is used to propel the airflow, thereby increasing its speed.

[0040] The remaining components will be described in detail below:

[0041] Sludge suction mechanism 5: such as Figure 4 Figure 5 As shown, the mechanism includes a flat-mouthed cover 53. One side of the cover 53 is a baffle plate 52, and the other side has a notch for suction 51. A suction pipe 54 is connected to the cover 53, and the suction pipe 54 is connected to the discharge pipe 7. To ensure the reliability of the installation of each air pipe 61, a fixing lug 55 is provided on the suction pipe 54, and the air pipe 61 is installed on the lug 55. Figure 1 As shown, during operation, the sludge suction port 51 on the cover 53 sucks up the sludge, while the excess sludge that is not absorbed is scraped by the scraper plate 52 and transferred step by step, causing the sludge to move towards the center of the circular sedimentation tank 8.

[0042] To further improve the sludge removal effect, such as Figure 3 As shown, a strip-shaped nozzle 63 is provided at the end of the air pipe 61. The strip-shaped nozzle 63 is arranged parallel to the sludge suction port 51 directly above it, so that air is sprayed out evenly. The spray direction of the nozzle 64 in the strip-shaped nozzle 63 forms an angle with the ground. In this way, while air is introduced, the airflow can also be used to effectively separate the sticky sludge from the bottom of the pool.

[0043] Drive mechanism 3: such as Figure 5As shown, the mechanism includes a mounting base 31, in which a roller 32 is provided. The roller 32 is connected to a control motor 33 via a transmission assembly 34. The roller 32 moves on the upper edge 81 of the sedimentation tank and is driven by the control motor 33.

[0044] In this embodiment, the motor 33 drives the roller 32 to move along the upper edge 81 of the sedimentation tank, causing the bridge frame 2 to rotate and move in a circle. During this process, the sludge suction mechanism 5 rotates accordingly, and the sludge suction port 51 on the cover 53 sucks up the sludge. When suctioning the sludge, the centrifugal blower 6 starts, and compressed air is introduced through the air pipe 61. The strip nozzle 63 sprays high-speed airflow to flush the sludge, and the separated sludge and air are absorbed by the sludge suction port 51. The absorbed mixture is discharged through the suction device in sequence through the cover 53, the sludge suction pipe 54, and the sludge discharge pipe 7.

[0045] Example 2: Figure 4 Figure 5 As shown, this embodiment differs from Embodiment 1 in that the method used to achieve the goal of introducing more compressed air closer to the central support 1 at the suction port 51 is different. In this embodiment, a control valve 62 is installed on each air pipe 61 corresponding to each suction port 51. The control valve 62 controls the amount of air introduced into the suction port 51. By controlling the airflow magnitude through the control valve 62, different airflows are achieved in each air pipe 61. The control valve 62 can be a mechanical valve for manual control or a solenoid valve for remote control.

[0046] Example 3: This example differs from Examples 1 and 2 in that it employs a different approach to achieve the goal of increasing the amount of compressed air supplied to the suction port 51 closer to the central support 1. This example combines the approaches of the previous two examples. In the air pipe 61 path between the suction port 51 and the centrifugal blower 6, the path is shorter closer to the central support 1. Furthermore, a control valve 62 is installed on each air pipe 61 corresponding to the suction port 51 to control the amount of air supplied. This combination of methods achieves the goal of controlling the airflow in each air pipe 61.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0048] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A semi-bridge type squeegee-suction dredger equipped with a centrifugal blower, comprising a central support (1) provided at the top end with a transverse bridge (2) provided at the end with a driving mechanism (3), below which a combination of bars (4) is arranged, on which a plurality of suction mechanisms (5) are arranged, which are arranged along the length of the bridge (2) and are connected to a discharge pipe (7), to which a suction device is connected, characterized in that: It also includes a centrifugal blower (6), which sends high-pressure gas into the suction port (51) of each sludge suction mechanism (5) through an air pipe (61). The bottom of the sludge suction mechanism (5) is provided with an inclined scraper (52), which pushes the sludge towards the central support (1). The closer the sludge is to the suction port (51) of the central support (1), the more compressed air is introduced.

2. A semi-strap drag-scraper equipped with a centrifugal blower according to claim 1, characterized in that: The path of the air pipe (61) between the suction port (51) and the centrifugal blower (6) is shorter the closer the suction port (51) is to the central support (1).

3. A semi-strap drag-scraper equipped with a centrifugal blower according to claim 1, characterized in that: A control valve (62) is provided on each of the air pipes (61) corresponding to each of the suction ports (51), and the amount of air introduced into the suction port (51) is controlled by the control valve (62).

4. The semi-bridge scraper-suction sludge machine equipped with a centrifugal blower according to claim 1, characterized in that: In the path of the air pipe (61) between the suction port (51) and the centrifugal blower (6), the path of the suction port (51) closer to the central support (1) is shorter, and a control valve (62) is provided on the air pipe (61) corresponding to each suction port (51) to control the amount of air introduced into the suction port (51).

5. The semi-bridge scraper / suction sludge machine equipped with a centrifugal blower according to any one of claims 1-4, characterized in that: The sludge suction mechanism (5) includes a flat-mouthed cover (53), one side of which is the scraper plate (52) and the other side has a notch, which is the sludge suction port (51). A sludge suction pipe (54) is connected to the cover (53), and the sludge suction pipe (54) is connected to the sludge discharge pipe (7).

6. The semi-bridge scraper-suction sludge machine equipped with a centrifugal blower according to claim 5, characterized in that: The air pipe (61) is provided with a strip-shaped nozzle (63) at the end, and the strip-shaped nozzle (63) is arranged parallel to the mud suction port (51) directly above it.

7. The semi-bridge scraper-suction sludge machine equipped with a centrifugal blower according to claim 6, characterized in that: The spray direction of the nozzle (64) in the strip-shaped shower head (63) forms an angle with the ground.

8. The semi-bridge scraper-suction sludge machine equipped with a centrifugal blower according to claim 5, characterized in that: The suction pipe (54) is provided with a fixed support (55), and the air pipe (61) is installed on the support (55).

9. The semi-bridge scraper-suction sludge machine equipped with a centrifugal blower according to claim 1, characterized in that: The centrifugal blower (6) is located on the bridge frame (2).

10. The semi-bridge scraper-suction sludge machine equipped with a centrifugal blower according to claim 1, characterized in that: The drive mechanism (3) includes a mounting base (31), in which a roller (32) is provided, and the roller (32) is connected to the control motor (33) through a transmission assembly (34).

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