A cleaning device for precipitate scum in a settling tank

Abstract

A kind of cleaning device for precipitating tank scum, including triangular frame, collection tray and sewage pump;Three corners of triangular frame are all equipped with float;Collection tray is fixedly installed in the inside of triangular frame, and opening is arranged in the middle of collection tray;Sewage pump is fixedly installed on collection tray, and suction inlet is arranged on the opening of collection tray;Discharge outlet of sewage pump is equipped with drain pipe;The bottom end of three sides of triangular frame is fixedly installed with underwater thruster;The utility model does not need to additionally equip thruster angle adjusting assembly, greatly simplifies the overall structure of equipment, and three sides fixed underwater thruster can realize flexible steering, straight line marching and other multi-posture movements in square precipitating tank by differentiation start-stop and speed regulation, and combined with the structural characteristics of triangular frame, it can accurately approach the four-corner area of square precipitating tank, effectively avoid the cleaning blind area formed by poor adaptability of existing circular frame equipment, and ensure that there is no dead angle coverage in precipitating tank.

Description

Technical Field

[0001] This utility model relates to the technical field of scum cleaning devices, and in particular to a cleaning device for scum in sedimentation tanks. Background Technology

[0002] In water treatment, sewage treatment, and various industrial wastewater treatment processes, sedimentation tanks serve as crucial solid-liquid separation equipment, and their operational efficiency directly impacts the effectiveness of subsequent treatment processes and the stability of the overall treatment system. During long-term use, suspended particulate matter, grease, fibers, and other impurities in the sewage easily form scum on the water surface, making efficient scum removal one of the core requirements for sedimentation tank operation and maintenance. Existing floating cleaning equipment suffers from multiple design flaws, making it difficult to meet the cleaning needs of square sedimentation tanks. On the one hand, in terms of propulsion mechanism design, most adopt a single propeller or a swingable propulsion mechanism, requiring adjustment of the propeller angle for directional control. The swingable structure requires additional angle adjustment components, which not only leads to complex equipment structure and high failure rate but also significantly increases manufacturing costs. On the other hand, in terms of frame structure design, most equipment uses a circular frame, which has poor compatibility with the rectangular walls of square sedimentation tanks. When the equipment approaches the four corners of the tank, the curved edges of the circular frame cannot fit the right-angle areas, forming obvious cleaning blind spots. This results in long-term accumulation of scum at the four corners, making thorough cleaning difficult. Utility Model Content

[0003] To address the above problems, this utility model proposes a cleaning device for scum in sedimentation tanks, and the technical solution used is as follows: A device for cleaning scum in a sedimentation tank includes a triangular frame, a collection tray, and a submersible pump. Floats are installed at the three corners of the triangular frame. The collection tray is fixedly installed inside the triangular frame, with an opening in the center. The submersible pump is fixedly installed on the collection tray, with its suction inlet located at the opening in the collection tray. A discharge pipe is installed on the discharge outlet of the submersible pump. Underwater thrusters are fixedly installed at the bottom of the three sides of the triangular frame.

[0004] Furthermore, a cover is fixedly installed on the triangular frame, and a controller is installed inside the cover. The controller is connected to various electrical components and is used to control the operation of the entire cleaning device.

[0005] Furthermore, the hood is equipped with three sets of cameras to monitor image information from three directions.

[0006] Furthermore, limit rods are fixedly installed on three sides of the triangular frame, and protective covers that intermittently cover the underwater thruster are slidably installed on the limit rods.

[0007] Furthermore, the triangular frame is equipped with a push rod, and the output end of the push rod is fixedly connected to the protective cover.

[0008] Furthermore, filter screens are fixedly installed on three sides of the triangular frame, and the filter screens are located above the underwater thruster and inside the protective cover.

[0009] Furthermore, the protective cover is provided with through holes.

[0010] Furthermore, the overall shape of the triangular frame is an equilateral triangle.

[0011] Furthermore, the collection tray is funnel-shaped overall.

[0012] Furthermore, the submersible pump has a cutting function, with a cutting blade or tearing mechanism integrated at its inlet.

[0013] Because this utility model adopts the above-mentioned technical solution, it has the following advantages compared with the prior art: 1. This utility model adopts a triangular frame and a three-sided fixed underwater thruster design. Compared with the swingable propulsion mechanism of existing floating cleaning equipment, it does not require additional thruster angle adjustment components, which greatly simplifies the overall structure of the equipment, reduces the manufacturing cost and assembly difficulty of the equipment, avoids equipment downtime caused by angle adjustment component failure, and significantly improves the stability of equipment operation.

[0014] 2. The three-sided fixed underwater propeller of this utility model can achieve flexible turning, straight-line movement and other posture movements in a square sedimentation tank through differentiated start / stop and speed adjustment. Combined with the structural characteristics of the triangular frame, it can accurately approach the four corner areas of the square sedimentation tank, effectively avoiding the cleaning blind spots caused by the poor adaptability of existing circular frame equipment, ensuring that there are no dead corners in the sedimentation tank, thoroughly cleaning the long-term accumulated scum in the four corners of the tank, and improving the thoroughness of scum cleaning.

[0015] 3. This utility model is equipped with a sliding protective cover, which can effectively protect the underwater thruster when it is closed; the triangular frame is equipped with a filter screen, which can intercept scum that the submersible pump cannot handle, and the large scum attached to the filter screen can be pushed out simultaneously during the rising of the protective cover, so as to avoid affecting the stability of subsequent filtration operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a side-view diagram of the structure of this utility model with the sewage pipe removed.

[0018] Figure 3This is a side-view schematic diagram of the structure of this utility model with the sewage pipe removed.

[0019] Figure 4 This is a schematic diagram of the structure of this utility model after removing the drain pipe, filter screen, push rod, protective cover and limit rod.

[0020] Figure 5 This is a schematic diagram of the assembly structure of the triangular frame, cover, collection tray and submersible pump of this utility model.

[0021] Figure 6 This is a schematic diagram of the assembly structure of the underwater thruster, filter screen, push rod, protective cover and limiting rod of this utility model.

[0022] Figure 7 This is a schematic diagram of the assembly structure of the push rod, protective cover and limiting rod of this utility model.

[0023] Icon labels: 1-Triangular frame; 2-Main cover; 3-Collection tray; 4-Submersible pump; 5-Drain pipe; 6-Underwater thruster; 7-Float; 8-Filter screen; 9-Push rod; 10-Protective cover; 11-Limit rod; 12-Camera. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They 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. Therefore, they should not be construed as limitations on this utility model. Example:

[0026] A device for cleaning scum in sedimentation tanks, such as Figures 1-5As shown, the device includes a triangular frame 1, a collection tray 3, and a submersible pump 4. Floats 7 are installed at each of the three corners of the triangular frame 1. The collection tray 3 is fixedly installed inside the triangular frame 1, and is funnel-shaped with an opening in the center. The submersible pump 4 is fixedly installed on the collection tray 3, with its suction inlet located at the opening of the collection tray 3, and a discharge pipe 5 installed at its outlet. Underwater thrusters 6 are fixedly installed at the bottom of each of the three sides of the triangular frame 1. A housing 2 is fixedly installed on the triangular frame 1, and three sets of cameras 12 are installed on the housing 2 to monitor image information in the three directions. A controller is installed inside the housing 2, connected to various electrical components, to control the operation of the entire cleaning device.

[0027] like Figures 6-7 As shown, filter screens 8 are fixedly installed on three sides of the triangular frame 1, and the filter screens 8 are located above the underwater thruster 6; limit rods 11 are fixedly installed on three sides of the triangular frame 1, and protective covers 10 are slidably installed on the limit rods 11. When the protective cover 10 moves down, it can cover the underwater thruster 6, and when the protective cover 10 moves up, the underwater thruster 6 is exposed; the protective cover 10 is driven to move by a push rod 9, which can be an electric push rod and is set on the triangular frame 1, with its output end fixedly connected to the protective cover 10; the protective cover 10 is provided with through holes, which balance the water pressure inside and outside the cover during the lifting and lowering process, making the protective cover 10 slide more smoothly; in the closed state, the holes can also reduce water flow resistance and not affect the overall floating stability.

[0028] As a specific implementation of this embodiment, the submersible sewage pump 4 has a cutting function, and its inlet integrates a cutting blade or tearing mechanism, which is a conventional technical means in the field. Its specific structure, connection method and working principle are known to those skilled in the art, so they will not be described in detail here.

[0029] As a specific implementation of this embodiment, the overall shape of the triangular frame 1 is an equilateral triangle.

[0030] The working principle of this embodiment is as follows.

[0031] The cleaning device is placed on the surface of the sedimentation tank, and the float 7 causes the triangular frame 1 to float up.

[0032] When traveling in a straight line, if the target direction is approximately perpendicular to a certain side, the underwater thruster 6 on that side is activated, and the thrusters on the other two sides are deactivated, or the underwater thrusters 6 on the other two sides are activated to generate opposing forces that cancel each other out, leaving only the resultant force in the target direction. If the target direction is oblique, the underwater thrusters 6 on the adjacent sides are activated, and their speeds are adjusted according to the triangle's side-angle relationship so that the combined thrust is along the target direction. The underwater thruster 6 on the third side is deactivated or cancels out the excess force in the opposite direction.

[0033] When turning, the three underwater thrusters 6 are activated, so that the thrust of each underwater thruster 6 generates a torque around the center of rotation, and the torque is in the same direction, so that the whole rotates clockwise or counterclockwise. The turning speed can be controlled by adjusting the speed of the underwater thrusters 6.

[0034] During lateral movement, the two sets of underwater thrusters 6 on the adjacent side are activated, and their rotation speed is adjusted to make the lateral force superimposed. This, combined with the underwater thruster 6 on the third side, cancels out the steering force, thus achieving pure lateral movement.

[0035] Through the aforementioned driving method, the triangular frame 1 can move in multiple postures within the sedimentation tank. The sharp corners of the triangular frame 1 can precisely approach the four corners of the square sedimentation tank to clean up the long-term accumulated scum in the four corners, ensuring that there are no dead corners in the sedimentation tank.

[0036] During operation, the camera 12 monitors the movement of the cleaning device and the water surface conditions in real time. When the underwater thruster 6 is turned on, the protective cover 10 on the corresponding side moves upward under the action of the push rod 9. When the underwater thruster 6 is turned off, the protective cover 10 on the corresponding side moves downward to prevent debris such as aquatic plants, fishing nets, and rocks from getting entangled or hitting the underwater thruster 6.

[0037] During cleaning, the protective cover 10 moves down to expose the filter screen 8, and the submersible pump 4 is started. The scum enters the collection tray 3 inside the triangular frame 1 from the outside through the filter screen 8. The submersible pump 4 sucks the scum into the drain pipe 5. The filter screen 8 blocks larger scum that the submersible pump 4 cannot handle, preventing such scum from clogging the submersible pump 4. Since the filter screen 8 is located inside the protective cover 10, the protective cover 10 can be moved up to push out the large scum attached to the filter screen 8, preventing the large scum from affecting the subsequent filtration work.

Claims

1. A device for cleaning scum in sedimentation tanks, characterized in that, It includes a triangular frame (1), a collection tray (3), and a submersible pump (4); floats (7) are installed on the three corners of the triangular frame (1); the collection tray (3) is fixedly installed inside the triangular frame (1), and an opening is provided in the middle of the collection tray (3); the submersible pump (4) is fixedly installed on the collection tray (3), and the suction port is located on the opening of the collection tray (3); a sewage pipe (5) is installed on the discharge port of the submersible pump (4); underwater thrusters (6) are fixedly installed at the bottom of the three sides of the triangular frame (1).

2. The cleaning device for scum in a sedimentation tank according to claim 1, characterized in that, A cover (2) is fixedly installed on the triangular frame (1). A controller is provided inside the cover (2). The controller is connected to various electrical components and is used to control the operation of the entire cleaning device.

3. The cleaning device for scum in a sedimentation tank according to claim 2, characterized in that, The shroud (2) is equipped with three sets of cameras (12) to monitor image information in three directions.

4. The cleaning device for scum in a sedimentation tank according to claim 1, characterized in that, Limiting rods (11) are fixedly installed on three sides of the triangular frame (1), and a protective cover (10) that intermittently covers the underwater thruster (6) is slidably installed on the limiting rods (11).

5. The cleaning device for scum in a sedimentation tank according to claim 4, characterized in that, The triangular frame (1) is provided with a push rod (9), and the output end of the push rod (9) is fixedly connected to the protective cover (10).

6. The cleaning device for scum in a sedimentation tank according to claim 4, characterized in that, The three sides of the triangular frame (1) are fixedly equipped with filter screens (8), which are located above the underwater thruster (6) and inside the protective cover (10).

7. The cleaning device for scum in a sedimentation tank according to claim 4, characterized in that, The protective cover (10) has through holes.

8. The cleaning device for scum in a sedimentation tank according to claim 1, characterized in that, The overall shape of the triangular frame (1) is an equilateral triangle.

9. The cleaning device for scum in a sedimentation tank according to claim 1, characterized in that, The collection tray (3) is funnel-shaped.

10. The cleaning device for scum in a sedimentation tank according to claim 1, characterized in that, The submersible pump (4) has a cutting function, and its inlet is integrated with a cutting blade or tearing mechanism.

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