Filtering device

Abstract

The present application relates to the technical field of filtering apparatuses. Disclosed is a filtering device, which mainly aims to remove sand grains on the surfaces of filter screens in a timely manner, thereby prolonging the life cycle of filtering apparatuses. The main technical solution of the present application is: the filtering device, comprising: a pretreatment pool, a filtering pool, a water storage pool and a wastewater drainage pool which are successively arranged; a filter screen pipe is provided in the filtering pool, one end of the filter screen pipe being communicated with the pretreatment pool via a first connection hose, the other end of the filter screen pipe being connected to one end of a wastewater drainage pipe via a second connection hose, and the other end of the wastewater drainage pipe successively passing through opposite side walls of the water storage pool and being used for communicating the filter screen pipe with the wastewater drainage pool; a through hole is formed in the side wall of the water storage pool above the wastewater drainage pipe, and is used for communicating the water storage pool with the filtering pool; a reciprocating mechanism comprises a double-shaft extension motor, two output shafts of the double-shaft extension motor being respectively and fixedly connected to the center of a disk, the edge of each disk being hinged to one end of a rocker lever, and the other end of the rocker lever being hinged to the pipe wall of the filter screen pipe.

Description

Filtration device Technical Field

[0001] This application relates to the field of filtration equipment technology, and more particularly to a filtration device. Background Technology

[0002] To ensure my country's water security, ecological security, and food security, it is essential to alleviate the imbalance between water supply and demand and to adhere to the strictest national water resource management requirements. With groundwater having reached its limit of exploitation potential, surface water will become the primary source for micro-irrigation projects. However, most surface water originates from mountain streams and rivers, characterized by high sediment content, making it unsuitable for direct use in micro-irrigation systems. Therefore, reducing the cost of treating surface water and sediment has become a key factor in promoting efficient water-saving technologies.

[0003] In existing technologies, a sedimentation tank and a filtration tank are typically included, with a pipe installed between the sedimentation tank and the filtration tank. A filter screen is installed inside the filtration tank to filter the water entering the filtration tank. However, sand particles in the water can easily clog the filter screen, preventing clean water from smoothly entering the filtration tank. Summary of the Invention

[0004] In view of this, the present application provides a filtration device, the main purpose of which is to clean the sand particles on the surface of the filter screen in a timely manner and extend the service life of the filtration device.

[0005] To achieve the above objectives, this application mainly provides the following technical solutions:

[0006] This application provides a filtration device, which includes: a main body, a filter screen, and a reciprocating mechanism;

[0007] The main body includes a pre-treatment tank, a filtration tank, a water storage tank, and a sewage discharge tank arranged in sequence;

[0008] The filter screen is installed inside the filter tank. One end of the filter screen is connected to the pre-treatment tank through a first flexible connecting pipe, and the other end of the filter screen is connected to one end of the drain pipe through a second flexible connecting pipe. The other end of the drain pipe passes through the opposite side walls of the water storage tank in sequence to connect the filter screen and the drain tank. The side wall of the water storage tank above the drain pipe is provided with a through hole to connect the water storage tank and the filter tank.

[0009] The reciprocating mechanism includes a dual-shaft extension motor, the two output shafts of which are fixedly connected to the center of the disk. The edge of the disk is hinged to one end of a rocker arm, and the other end of the rocker arm is hinged to the wall of the filter screen tube.

[0010] The purpose of this application and the technical problems to be solved can also be further achieved by the following technical measures.

[0011] Optionally, a liquid level feedback mechanism is also included. The liquid level feedback mechanism includes a guide rod and a float. The guide rod is vertically disposed in the filter tank. The float is slidably connected to the guide rod. The upper end of the float is fixedly connected to a Hall element. The lower end of the guide rod is fixedly connected to a magnet to make the magnet and the Hall element correspond to each other. The Hall element is electrically connected to the input terminal of the controller. The output terminal of the controller is electrically connected to the terminal of the dual-shaft extension motor.

[0012] Optionally, the float has a radial channel at its center, and the guide rod is slidably connected to the radial channel.

[0013] Optionally, a support frame is also included, which is fixedly connected to the upper end of the filter tank, and the dual-shaft extension motor is fixedly installed on the support frame.

[0014] Optionally, a stop block is also included, which is fixedly connected to the lower end of the guide rod.

[0015] Optionally, it also includes an overflow plate, which is disposed in the pre-treatment tank to divide the pre-treatment tank into a sedimentation tank and a pressure tank. The sedimentation tank, the pressure tank and the filtration tank are arranged in sequence, and one end of the filter screen is connected to the pressure tank through the first flexible connecting pipe.

[0016] Optionally, a pre-filter is also included, which is connected to the upper side of the overflow plate.

[0017] Optionally, a gate valve mechanism is also included, which includes a lead screw, a gate plate, and a mounting block. The mounting block is fixedly connected to the inner wall of the pre-treatment tank, the lead screw is threaded to the mounting block, and the lower end of the lead screw is hinged to the upper side of the gate plate, for driving the gate plate to move up and down along the side wall of the pre-treatment tank to open or close the end face of the first flexible connecting pipe.

[0018] Optionally, it also includes a water pump, which is installed above the water storage tank and whose inlet pipe extends to the bottom of the water storage tank.

[0019] Optionally, it also includes a drain pipe connected to the lower end of the sewage tank, and the drain pipe is equipped with a drain valve.

[0020] By employing the above technical solution, this application has at least the following advantages:

[0021] The external pipeline network transports sewage to the pre-treatment tank. The sewage flows through the first flexible connecting pipe, the filter screen pipe, the second flexible connecting pipe and the sewage discharge pipe in sequence. As the sewage level in the pre-treatment tank rises, sand particles in the water are intercepted in the filter screen pipe. Clean water passes through the filter holes of the filter screen pipe and enters the filtration tank, and then enters the storage tank through the through hole.

[0022] As the filtration operation continues, the filter pores of the filter screen become increasingly clogged, slowing down the rate at which clean water passes through the pores. The rate at which the clean water level rises in the filtration tank and the storage tank cannot keep pace with the rate at which the level rises in the pre-treatment tank. When the sewage delivery to the pre-treatment tank is suspended, the operator can start the dual-shaft extension motor to rotate the disc. The disc drives the rocker arm to swing back and forth, and the rocker arm drives the filter screen to vibrate back and forth. During the above process, the first and second flexible connecting pipes deform adaptively.

[0023] Because the through hole is located above the sewage pipe, the part below the through hole in the filter tank always maintains a certain liquid level. During the reciprocating shaking of the filter screen tube, the clean water in the filter tank washes the outer surface of the filter screen tube, and the clean water impacts the filter holes of the filter screen tube in the opposite direction, thereby causing sand particles to leave the filter holes of the filter screen tube. In this way, the filter screen tube restores its filtration capacity. Attached Figure Description

[0024] Figure 1 is a schematic diagram of a filtration device provided in an embodiment of this application;

[0025] Figure 2 is a view of point AA in Figure 1;

[0026] Figure 3 is an enlarged view of part B in Figure 1.

[0027] The reference numerals in the accompanying drawings of this instruction manual include: 1. Pre-filter; 2. Filter tank; 3. Storage tank; 4. Sewage tank; 5. Filter screen pipe; 6. First flexible connection pipe; 7. Second flexible connection pipe; 8. Sewage pipe; 9. Through hole; 10. Dual-shaft extension motor; 11. Disc; 12. Rocker arm; 13. Through pipe; 14. Guide rod; 15. Float; 16. Hall element; 17. Magnet; 18. Radial channel; 19. Support frame; 20. Stop block; 21. Overflow plate; 22. External pipe network; 23. Pre-filter screen; 24. Lead screw; 25. Gate plate; 26. Mounting block; 27. Water pump; 28. Drain pipe; 29. ​​Drain valve. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this application to achieve the intended inventive purpose, the specific implementation methods, structures, features, and effects according to this application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0029] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] As shown in Figures 1 and 2, an embodiment of this application provides a filtration device, which includes: a main body, a filter screen 5, and a reciprocating mechanism;

[0031] The main body includes a pre-treatment tank 1, a filtration tank 2, a water storage tank 3, and a sewage discharge tank 4 arranged in sequence;

[0032] The filter screen tube 5 is installed in the filter tank 2. One end of the filter screen tube 5 is connected to the pre-treatment tank 1 through the first flexible connecting pipe 6. The other end of the filter screen tube 5 is connected to one end of the sewage pipe 8 through the second flexible connecting pipe 7. The other end of the sewage pipe 8 passes through the opposite side walls of the water storage tank 3 in sequence to connect the filter screen tube 5 and the sewage tank 4. The side wall of the water storage tank 3 above the sewage pipe 8 is provided with a through hole 9 to connect the water storage tank 3 and the filter tank 2.

[0033] The reciprocating mechanism includes a dual-shaft extension motor 10. The two output shafts of the dual-shaft extension motor 10 are fixedly connected to the center of the disk 11. The edge of the disk 11 is hinged to one end of the rocker arm 12, and the other end of the rocker arm 12 is hinged to the wall of the filter screen tube 5.

[0034] The working process of the filtration device is as follows:

[0035] External pipeline 22 transports sewage to pre-treatment tank 1. The sewage flows sequentially through the first flexible connecting pipe 6, filter screen pipe 5, second flexible connecting pipe 7 and sewage discharge pipe 8. As the sewage level in pre-treatment tank 1 rises, sand particles in the water are intercepted in the filter screen pipe 5. Clean water passes through the filter holes of the filter screen pipe 5 and enters the filter tank 2, and then enters the water storage tank 3 through the through hole 9.

[0036] As the filtration operation continues, the filter holes of the filter screen tube 5 become increasingly clogged, and the rate at which clean water passes through the filter holes slows down. The rate at which the clean water level rises in the filter tank 2 and the water storage tank 3 cannot be synchronized with the rate at which the level rises in the pre-treatment tank 1. The sewage delivery to the pre-treatment tank 1 is then suspended, and the operator can start the dual-shaft extension motor 10 to drive the disc 11 to rotate. The disc 11 drives the rocker arm 12 to swing back and forth, and the rocker arm 12 drives the filter screen tube 5 to shake back and forth. During the above process, the first flexible connecting tube 6 and the second flexible connecting tube 7 deform adaptively.

[0037] Because the through hole 9 is located above the drain pipe 8, the part below the through hole 9 in the filter tank 2 always maintains a certain liquid level. During the reciprocating shaking of the filter screen tube 5, the clean water in the filter tank 2 washes the outer surface of the filter screen tube 5, and the clean water impacts the filter holes of the filter screen tube 5 in the opposite direction, thereby causing the sand particles to leave the filter holes of the filter screen tube 5. In this way, the filter screen tube 5 restores its filtration capacity.

[0038] In the technical solution of this application, the device extends the service life of the device by shaking the filter screen tube 5 to clear the filter holes of the filter screen tube 5.

[0039] Specifically, the first flexible connecting pipe 6 and the second flexible connecting pipe 7 are made of plastic corrugated pipe material.

[0040] Specifically, the manufacturing process of filter tube 5 is as follows: steel bars are welded into a tubular frame, and then wire mesh is wrapped and tied to the tubular frame to form filter tube 5.

[0041] Specifically, there are two disks 11 and two rockers 12, with the other ends of the two rockers 12 respectively hinged to the tubular skeleton of the filter screen tube 5.

[0042] Specifically, the first flexible connecting pipe 6 and the second flexible connecting pipe 7 are respectively connected to the opposite ends of the filter screen pipe 5 by clamps.

[0043] Specifically, it also includes a through pipe 13, which penetrates the tank wall between the pre-filter tank 1 and the filter tank 2, and the first flexible connecting pipe 6 is connected to the through pipe 13 by a clamp.

[0044] As shown in Figures 1 and 3, in a specific embodiment, a liquid level feedback mechanism is also included. The liquid level feedback mechanism includes a guide rod 14 and a float 15. The guide rod 14 is vertically arranged in the filter tank 2. The float 15 is slidably connected to the guide rod 14. The upper end of the float 15 is fixedly connected to the Hall element 16. The lower end of the guide rod 14 is fixedly connected to the magnet 17, so that the magnet 17 and the Hall element 16 correspond to each other. The Hall element 16 is electrically connected to the input terminal of the controller, and the output terminal of the controller is electrically connected to the terminal of the dual-shaft extension motor 10.

[0045] In this embodiment, specifically, as the filter holes of the filter tube 5 become clogged, clean water cannot smoothly enter the filter tank 2, the liquid level of the filter tank 2 drops, and the float 15 also drops with the liquid level. When the Hall element 16 corresponds to the magnet 17, the Hall element 16 sends an electrical signal to the controller, the controller sends an electrical signal to the dual-axis extension motor 10, the dual-axis extension motor 10 starts, the dual-axis extension motor 10 drives the disc 11 to rotate, the disc 11 drives the filter tube 5 to shake through the rocker arm 12. When the filter holes of the filter tube 5 are cleared, the liquid level of the filter tank 2 rises again, the Hall element 16 and the magnet 17 no longer correspond, the controller sends a stop command to the dual-axis extension motor 10, and the filter tube 5 stops shaking.

[0046] Specifically, the Hall element 16 is fixedly connected to the upper end of the float 15, and the Hall element 16 is always above the liquid surface to prevent the Hall element 16 from being soaked in water.

[0047] As shown in Figure 3, in a specific embodiment, the float 15 has a radial channel 18 at its center, and the guide rod 14 is slidably connected to the radial channel 18.

[0048] In this embodiment, specifically, the float 15 adopts a hollow plastic structure, the radial channel 18 extends along the diameter direction of the float 15, the radial section of the guide rod 14 is a first rectangle, the radial section of the radial channel 18 is a second rectangle, and the outline of the second rectangle is slightly larger than the outline of the first rectangle, thereby preventing the float 15 from rotating relative to the guide rod 14.

[0049] As shown in Figure 1, in a specific embodiment, a support frame 19 is also included. The support frame 19 is fixedly connected to the upper end of the filter tank 2, and the dual-shaft extension motor 10 is fixedly installed on the support frame 19.

[0050] In this embodiment, specifically, the support frame 19 is fixedly connected to the upper opening edge of the filter tank 2, and the dual-shaft extension motor 10 is installed on the support frame 19 by anchor bolts to ensure the stability of the dual-shaft extension motor 10 and prevent the dual-shaft extension motor 10 from being eroded by water.

[0051] As shown in Figure 3, in a specific embodiment, a stop block 20 is also included, which is fixedly connected to the lower end of the guide rod 14.

[0052] In this embodiment, specifically, the stop block 20 is fixedly connected to the lower end of the guide rod 14 to prevent the float 15 from moving downward and disengaging from the guide rod 14.

[0053] As shown in Figure 1, in a specific embodiment, an overflow plate 21 is also included. The overflow plate 21 is disposed in the pre-treatment tank 1 and is used to divide the pre-treatment tank 1 into a sedimentation tank and a pressure tank. The sedimentation tank, pressure tank and filter tank 2 are arranged in sequence. One end of the filter screen 5 is connected to the pressure tank through the first flexible connecting pipe 6.

[0054] In this embodiment, specifically, the external pipeline 22 first transports the sewage to the sedimentation tank. The supernatant after sedimentation overflows the overflow plate 21 and enters the pressure tank, and then flows through the filter pipe 5. The overflow plate 21 is set in the pre-treatment tank 1 so that most of the sand particles settle first, which can reduce the workload of the filter pipe 5.

[0055] As shown in Figure 1, in a specific embodiment, a pre-filter 23 is also included, which is connected to the upper side of the overflow plate 21.

[0056] In this embodiment, specifically, as the device continues to operate, more and more silt accumulates in the sedimentation tank. The pre-filter 23 can intercept the silt in the water flow. At the same time, if the operator observes that a lot of silt is attached to the surface of the pre-filter 23, it can be determined that the silt in the sedimentation tank needs to be cleaned.

[0057] As shown in Figure 1, in a specific embodiment, a gate valve mechanism is also included. The gate valve mechanism includes a lead screw 24, a gate plate 25, and a mounting block 26. The mounting block 26 is fixedly connected to the inner side wall of the pre-treatment tank 1. The lead screw 24 is threadedly connected to the mounting block 26. The lower end of the lead screw 24 is hinged to the upper side of the gate plate 25, which is used to drive the gate plate 25 to move up and down along the side wall of the pre-treatment tank 1 to open or close the end face of the first flexible connecting pipe 6 (through pipe 13).

[0058] In this embodiment, specifically, when the pre-treatment tank 1 needs cleaning, or when the filter screen 5, the first flexible connecting pipe 6, and the second flexible connecting pipe 7 need to be replaced or repaired, the operator holds the handwheel at the upper end of the screw 24 and rotates the screw 24 in the forward direction, driving the screw 24 to move downward relative to the mounting block 26. The screw 24 drives the gate plate 25 to move downward, blocking the end face of the first flexible connecting pipe 6 (through pipe 13), preventing water in the pre-treatment tank 1 from entering the filter tank 2, and improving the safety factor of maintenance operations;

[0059] After the debris in the pre-treatment tank 1 has been cleaned, or after the filter screen 5, the first flexible connecting pipe 6 and the second flexible connecting pipe 7 have been replaced or repaired, the operator rotates the screw 24 in the opposite direction to move the gate 25 upward and open the end face of the first flexible connecting pipe 6 (through pipe 13).

[0060] As shown in Figure 1, in a specific embodiment, a water pump 27 is also included. The water pump 27 is installed above the water storage tank 3, and the inlet pipe of the water pump 27 extends to the bottom of the water storage tank 3.

[0061] In this embodiment, specifically, the inlet pipe of the water pump 27 extends to the bottom of the water storage tank 3, which facilitates the extraction of clean water from the water storage tank 3 to the farmland irrigation system. This keeps the water storage tank 3 at a low liquid level, which facilitates the formation of a liquid level difference between the filter tank 2 and the water storage tank 3, allowing clean water to automatically flow into the water storage tank 3.

[0062] As shown in Figure 1, in a specific embodiment, a drain pipe 28 is also included. The drain pipe 28 is connected to the lower end of the sewage tank 4, and a drain valve 29 is installed on the drain pipe 28.

[0063] In this embodiment, a sewage pump can be added. The inlet of the sewage pump is connected to the drain pipe 28, and the outlet pipe of the sewage pump extends to the upper inlet of the pre-treatment tank 1, so that the sewage in the sewage tank 4 can be filtered again.

[0064] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A filtration device, characterized in that, include: The main body includes a pre-treatment tank, a filtration tank, a water storage tank, and a sewage discharge tank arranged in sequence. A filter screen is installed inside the filter tank. One end of the filter screen is connected to the pre-filter tank via a first flexible connecting pipe, and the other end of the filter screen is connected to one end of a drain pipe via a second flexible connecting pipe. The other end of the drain pipe passes through the opposite side walls of the water storage tank in sequence to connect the filter screen and the drain tank. A through hole is provided on the side wall of the water storage tank above the drain pipe to connect the water storage tank and the filter tank. The reciprocating mechanism includes a dual-shaft extension motor, the two output shafts of which are respectively fixedly connected to the center of a disc, the edge of which is hinged to one end of a rocker arm, and the other end of which is hinged to the wall of the filter screen tube.

2. The filtration device according to claim 1, characterized in that, It also includes a liquid level feedback mechanism, which includes a guide rod and a float. The guide rod is vertically arranged in the filter tank, and the float is slidably connected to the guide rod. The upper end of the float is fixedly connected to a Hall element, and the lower end of the guide rod is fixedly connected to a magnet to make the magnet and the Hall element correspond to each other. The Hall element is electrically connected to the input terminal of the controller, and the output terminal of the controller is electrically connected to the terminal of the dual-shaft extension motor.

3. The filtration device according to claim 2, characterized in that, The float has a radial channel at its center, and the guide rod is slidably connected to the radial channel.

4. The filtration device according to claim 1, characterized in that, It also includes a support frame, which is fixedly connected to the upper end of the filter tank, and the dual-shaft extension motor is fixedly installed on the support frame.

5. The filtration device according to claim 2 or 3, characterized in that, It also includes a stop block, which is fixedly connected to the lower end of the guide rod.

6. The filtration device according to any one of claims 1 to 4, characterized in that, It also includes an overflow plate, which is disposed in the pre-treatment tank to divide the pre-treatment tank into a sedimentation tank and a pressure tank. The sedimentation tank, the pressure tank and the filtration tank are arranged in sequence, and one end of the filter screen is connected to the pressure tank through the first flexible connecting pipe.

7. The filtration device according to claim 6, characterized in that, It also includes a pre-filter, which is connected to the upper side of the overflow plate.

8. The filtration device according to any one of claims 1 to 4, characterized in that, It also includes a gate valve mechanism, which includes a lead screw, a gate plate, and a mounting block. The mounting block is fixedly connected to the inner wall of the pre-treatment tank, the lead screw is threaded to the mounting block, and the lower end of the lead screw is hinged to the upper side of the gate plate, which is used to drive the gate plate to move up and down along the side wall of the pre-treatment tank to open or close the end face of the first flexible connecting pipe.

9. The filtration device according to any one of claims 1 to 4, characterized in that, It also includes a water pump, which is installed above the water storage tank and whose inlet pipe extends to the bottom of the water storage tank.

10. The filtration device according to any one of claims 1 to 4, characterized in that, It also includes a drain pipe connected to the lower end of the sewage tank, and the drain pipe is equipped with a drain valve.

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