Intelligent speed-adjustable siphon type suction dredger

Abstract

The application discloses a kind of intelligent speed-adjusting siphon suction dredger, specifically relates to the technical field of travelling suction dredger, including horizontal flow sedimentation tank, the top of both sides of horizontal flow sedimentation tank is laid with steel rail respectively, steel rail supports the end beam of walking wheel and steel rail adaptation together, end beam supports work bridge, and work bridge bottom is installed with a row of mud scraping support, each mud scraping support is equipped with suction pipe, and the top of each suction pipe is communicated with mud pipe, and the connecting portion of all suction pipes and mud pipes is communicated with vacuum pipe upwardly with branch pipe, submersible pump is installed below work bridge, and the top branch pipe of drain pipe of submersible pump is communicated with vacuum pipe, each mud pipe is provided with electric ball valve with adjustable opening, mud pipe is introduced into mud discharge groove of horizontal flow sedimentation tank, motor is connected with the speed reduction mechanism of driving end beam walking wheel, and work bridge is installed with the control cabinet of frequency conversion driving motor, and the application is finely adjusted to the running speed of suction dredger by frequency converter, and the running energy consumption of equipment is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of traveling sludge suction machine, specifically relating to an intelligent speed-regulating siphon sludge suction machine. Background Technology

[0002] Truss-type sludge suction machines are widely used for removing settled sludge from horizontal flow sedimentation tanks in water treatment plants. Their main components include a trolley, drive unit, vacuum system, and sludge suction system. The equipment starts at the inlet of the sedimentation tank. Upon startup, a submersible pump generates a vacuum, which drives the sludge suction machine forward along the rails to discharge sludge (towards the outlet). When the trolley reaches the other end of the sedimentation tank and triggers the return limit switch, the motor reverses direction, and the sludge suction machine begins its reverse sludge discharge. When it returns to the initial position and triggers the limit switch again, the motor stops, and the solenoid valve opens, allowing air to enter the siphon system, breaking the vacuum and stopping the sludge discharge. This completes one sludge discharge cycle, and the machine awaits the next command.

[0003] However, current truss-type sludge suction machines generally operate at a fixed speed (typically 0.6-1.2 m / min). The amount of sludge accumulated before and after a horizontal flow sedimentation tank varies significantly, with the first part of the tank typically containing over 70% of the total sludge. Traditional operating modes result in uneven sludge concentration during suction, with incomplete suction in areas with high sludge accumulation and sludge with higher moisture content in areas with low sludge accumulation. Optimizing the operating mode through the control system can increase the stroke by 1 / 3 within a single operating cycle; that is, after starting, the sludge suction machine performs a 1 / 3 stroke back and forth to discharge sludge, then returns to the starting point for a full stroke. However, this operating mode relies on a timer in the PLC to position the sludge suction machine, and the uniform speed also increases water waste. Furthermore, the increased stroke also increases power consumption.

[0004] Therefore, a new type of intelligent speed-regulating siphon suction sludge machine is needed. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses an intelligent speed-regulating siphon-type sludge suction machine.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A smart speed-regulating siphon-type sludge suction machine includes a horizontal flow sedimentation tank. Steel rails are laid on the top of both sides of the sedimentation tank, supporting end beams that are compatible with the traveling wheels. The end beams support a working bridge. A row of sludge scraping supports is installed at the bottom of the working bridge. Each scraping support is equipped with a sludge suction pipe, and each suction pipe is connected to a sludge discharge pipe at its top. All connections between the suction and discharge pipes are connected to a vacuum pipe via upward branch pipes. A submersible pump is installed below the working bridge, and the top branch pipe of the pump's drain pipe is connected to the vacuum pipe. Each discharge pipe is equipped with an adjustable-opening electric ball valve. The discharge pipes lead into the discharge trough of the horizontal flow sedimentation tank. A motor is installed on the end beams, connected to a reduction mechanism that drives the end beam's traveling wheels. A control cabinet for a variable frequency drive motor is installed on the working bridge. A laser rangefinder sensor, pointing parallel to the working bridge's direction of movement, is fixedly installed on the working bridge. A reflector compatible with the laser rangefinder sensor is installed at one end of the horizontal flow sedimentation tank.

[0008] As a preferred embodiment of this utility model, each of the steel rails is provided with a stop at both ends.

[0009] As a preferred embodiment of this utility model, the vacuum tube is equipped with a vacuum pressure gauge and a solenoid valve for controlling the connection between its inner cavity and the outside world.

[0010] As a preferred embodiment of this utility model, a water seal box is fitted at the end outlet of the sludge discharge pipe that extends into the sludge discharge trough.

[0011] As a preferred embodiment of this utility model, the side wall of the horizontal sedimentation tank is equipped with a sliding contact mechanism for supplying power to the moving components.

[0012] As a preferred embodiment of this utility model, the scraper plate at the bottom of the scraper bracket is adapted to the suction port of the suction pipe.

[0013] The beneficial effects of this utility model are as follows:

[0014] I. This application not only ensures the effective removal of sludge at the bottom of the pool, but also effectively avoids excessive discharge of clean water by precisely controlling the amount of sludge discharged, thereby significantly reducing the waste of water resources;

[0015] Second, this application utilizes a frequency converter to precisely adjust the operating speed of the sludge suction machine, thereby optimizing and shortening the equipment's operating time. This process not only reduces electrical energy consumption and equipment operating energy consumption, but also reduces the wear and tear on mechanical parts, thus comprehensively improving the operational stability and reliability of the entire system and ensuring the long-term efficient operation of the equipment. Attached Figure Description

[0016] Figure 1This is a front structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a partial sectional view of a side view of an embodiment of the present utility model.

[0018] List of identifiers in attached diagrams:

[0019] 1. Horizontal flow sedimentation tank; 101. Sludge discharge trough;

[0020] 2. Steel rails; 201. Vehicle stop;

[0021] 3. End beam; 4. Working bridge; 5. Sludge scraper bracket; 6. Sludge scraper; 7. Suction pipe; 8. Electric ball valve; 9. Sludge discharge pipe; 10. Solenoid valve; 11. Vacuum pressure gauge; 12. Water seal box; 13. Laser rangefinder sensor; 14. Reflector; 15. Control cabinet; 16. Sliding contact mechanism;

[0022] 17. Submersible pump; 171. Drain pipe;

[0023] 18. Motor; 19. Gear reduction mechanism; 20. Vacuum tube. Detailed Implementation

[0024] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0025] Please see Figure 1-2 A smart speed-regulating siphon-type sludge suction machine includes a horizontal flow sedimentation tank 1, with steel rails 2 laid on the top of both sides of the horizontal flow sedimentation tank 1. The steel rails 2 together support the end beams 3 that are adapted to the traveling wheels, and the end beams 3 support the working bridge 4. A row of sludge scraper brackets 5 are installed at the bottom of the working bridge 4, and each sludge scraper bracket 5 is equipped with a sludge suction pipe 7, and the sludge scraper 6 at the bottom of the sludge scraper bracket 5 is adapted to the sludge suction port of the sludge suction pipe 7. Each sludge suction pipe 7 is connected to a sludge discharge pipe 9, and the connection points of all sludge suction pipes 7 and sludge discharge pipes 9 are connected to a vacuum pipe 20 via upward branch pipes. A submersible pump 17 is installed below the working bridge 4, and the top branch pipe of the drain pipe 171 of the submersible pump 17 is connected to the vacuum pipe 20. Each sludge discharge pipe 9 is equipped with an electric ball valve 8 with adjustable opening. The sludge discharge pipe 9 leads to the sludge discharge trough 101 of the horizontal flow sedimentation tank 1. A motor 18 is installed on the end beam 3, and the motor 18 is connected to a reduction mechanism 19 that drives the wheels of the end beam 3. A control cabinet 15 for the variable frequency drive motor 18 is installed on the working bridge 4. A laser rangefinder 13, pointing parallel to the direction of movement of the working bridge 4, is fixedly installed on the working bridge 4, and a reflector 14 adapted to the laser rangefinder 13 is installed at one end of the horizontal flow sedimentation tank 1. The reflector 14 measures distance by reflecting the laser emitted by the laser rangefinder 13 back to the laser rangefinder 13 for reception.

[0026] The main body of the sludge suction machine consists of end beam 3, working bridge 4, sludge scraper bracket 5, sludge scraper 6, sludge suction pipe 7, sludge discharge pipe 9, water seal box 12, submersible pump 17, and vacuum tube 20.

[0027] Each rail 2 is equipped with a stop 201 at both ends. The stop 201 is a mechanical limiter used to restrict the movement range of the sludge suction machine and prevent it from detaching from the rail 2.

[0028] The motor 18 drives the end beam 3 to rotate slowly through the reduction mechanism 19, so as to enable the sludge suction machine to move at low speed and suck up the sludge at the bottom of the horizontal sedimentation tank 1.

[0029] The vacuum tube 20 is equipped with a vacuum pressure gauge 11 and a solenoid valve 10 that controls the connection between its internal cavity and the outside. When it is necessary to break the vacuum, the solenoid valve 10 can be opened quickly, allowing air to enter the sludge discharge pipe 9, thereby interrupting the siphon process and stopping the sludge discharge. The vacuum pressure gauge 11 is used to monitor the vacuum pressure in the sludge discharge pipe 9 and simultaneously control the start and stop of the submersible pump 17. Typically, the system sets a target vacuum pressure value. When the vacuum pressure reaches this target value, the submersible pump 17 can stop working because the siphon effect has been established, and the sludge suction process can continue relying on the siphon effect.

[0030] A water seal box 12 is fitted at the end outlet of the mud discharge pipe 9 that extends into the mud discharge trough 101 to prevent air from entering the mud discharge pipe 9, maintain a stable vacuum state, stabilize the mud discharge process, and reduce pressure fluctuations and mud splashing.

[0031] The side wall of the horizontal flow sedimentation tank 1 is equipped with a sliding contact mechanism 16 for supplying power to the sludge suction machine. When the sludge suction machine moves along the guide rail, the brushes on the current collector remain in contact with the sliding contact line to ensure a continuous supply of power. With the sliding contact power supply method, the sludge suction machine can move freely within the entire length of the horizontal flow sedimentation tank 1 without worrying about the limitations of the power cord.

[0032] The main function of the submersible pump 17 is to create a vacuum by pumping water. When the sludge suction machine starts running, the control system activates the submersible pump 17. The submersible pump 17 reduces the pressure in the vacuum pipe 20 and the sludge discharge pipe 9 by pumping water, thus creating a vacuum. When the vacuum pressure displayed on the vacuum pressure gauge 11 reaches the set value, the control system stops the submersible pump 17. At this point, the siphon effect has been established, the sludge suction pipe 7 draws in sludge, and the sludge discharge pipe 9 discharges the sludge into the sludge discharge trough 101. The sludge suction process can continue by relying on the siphon effect.

[0033] Working principle:

[0034] During operation, motor 18 drives the sludge suction machine to move at low speed. Laser range sensor 13 and reflector 14 work together to accurately locate the moving sludge suction machine in real time. In terms of drive control, control cabinet 15 is equipped with frequency converter to drive sludge suction machine motor 18. Given the gradient distribution characteristics of the sludge at the bottom of the horizontal flow sedimentation tank 1 along the water flow direction, the system dynamically adjusts the output frequency of the frequency converter based on laser range data. Specifically, as the sludge suction machine moves towards the outlet, the frequency converter increases the output frequency to speed up the movement of the sludge suction machine (as the sludge gradually decreases), achieving precise adaptive sludge discharge for areas with different sludge thicknesses and significantly reducing ineffective hydraulic losses.

[0035] Furthermore, an adjustable electric ball valve 8 is added to the sludge discharge pipe 9. The sludge discharge flow rate is dynamically adjusted by precisely controlling the opening of the electric ball valve 8. That is, as the sludge suction machine moves towards the water outlet, the sludge content decreases, the valve opening is reduced, and the sludge discharge flow rate is reduced. Combined with the variable frequency speed control system, the sludge suction machine can optimize the sludge discharge flow rate and travel speed in coordination based on the laser ranging data, and build a closed-loop intelligent sludge discharge control system to comprehensively improve the operating efficiency of the sedimentation process in the water purification plant.

[0036] When the sludge suction machine moves, the sludge scraped up by the scraper blades 6 is sucked into the suction port of the suction pipe 7. Because a row of scraper blades 6 is installed, the sludge at the bottom of the horizontal sedimentation tank 1 is sucked away in a row. The sludge sucked away by the suction pipe 7 is discharged into the sludge discharge trough 101 through the sludge discharge pipe 9.

[0037] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. An intelligent speed-regulating siphon sludge suction machine, comprising a horizontal flow sedimentation tank (1), characterized in that, The top of both sides of the horizontal sedimentation tank (1) is covered with steel rails (2), which together support the end beams (3) that are adapted to the traveling wheels and the steel rails (2). The end beams (3) support the working bridge (4). A row of sludge scraper brackets (5) is installed at the bottom of the working bridge (4). Each sludge scraper bracket (5) is equipped with a sludge suction pipe (7). The top of each sludge suction pipe (7) is connected to a sludge discharge pipe (9). All the connection points of the sludge suction pipes (7) and the sludge discharge pipes (9) are connected to a vacuum pipe (20) by an upward branch pipe. A submersible pump (17) is installed below the working bridge (4), and the top branch pipe of the drain pipe (171) of the submersible pump (17) is connected to a vacuum pipe (20). The empty pipe (20) is connected, and each of the sludge discharge pipes (9) is equipped with an electric ball valve (8) with an adjustable opening. The sludge discharge pipe (9) is connected to the sludge discharge trough (101) of the horizontal sedimentation tank (1). The end beam (3) is equipped with a motor (18). The motor (18) is connected to a reduction mechanism (19) that drives the wheels of the end beam (3). The working bridge (4) is equipped with a control cabinet (15) for the variable frequency drive motor (18). The working bridge (4) is fixedly equipped with a laser range sensor (13) that points parallel to the moving direction of the working bridge (4). One end of the horizontal sedimentation tank (1) is equipped with a reflector (14) that is compatible with the laser range sensor (13).

2. The intelligent speed-regulating siphon sludge suction machine according to claim 1, characterized in that, Each of the rails (2) is equipped with a stop (201) at both ends.

3. The intelligent speed-regulating siphon sludge suction machine according to claim 1, characterized in that, The vacuum tube (20) is equipped with a vacuum pressure gauge (11) and a solenoid valve (10) for controlling the connection between its inner cavity and the outside.

4. The intelligent speed-regulating siphon sludge suction machine according to claim 1, characterized in that, The end outlet of the sludge discharge pipe (9) that extends into the sludge discharge trough (101) is fitted with a water seal box (12).

5. The intelligent speed-regulating siphon sludge suction machine according to claim 1, characterized in that, The side wall of the horizontal sedimentation tank (1) is equipped with a sliding contact mechanism (16) for powering the moving components.

6. The intelligent speed-regulating siphon sludge suction machine according to claim 1, characterized in that, The scraper plate (6) at the bottom of the scraper bracket (5) is adapted to the suction port of the suction pipe (7).

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