A backwash sewage filtering device

Abstract

The utility model discloses a backflushing sewage filtering equipment relates to sewage filtering technical field, including the installation frame of inclination arrangement, be equipped with the filter drum on the installation frame top, and the both ends of filter drum are equipped with the rolling part, the position of installation frame is located rolling part both sides all installs the supporting wheel for supporting rolling part, one side of installation frame is equipped with the backflushing subassembly for carrying out backflushing to filter drum, and the position of installation frame is close to filter drum short end and is fixedly connected with U -shaped frame, and U -shaped frame is rotatably connected with drive shaft, the utility model discloses a supporting wheel to the supporting of rolling part, simultaneously, drive shaft and central frame adopt detachable transmission structure, and then can be convenient for to filter drum taking out and changes, so that can change the filter drum of corresponding mesh number according to actual use condition, to satisfy the diversified sewage treatment scene.

Description

Technical Field

[0001] This utility model relates to the field of wastewater filtration technology, specifically a backwashing wastewater filtration device. Background Technology

[0002] Wastewater filtration equipment is the core device for achieving solid-liquid separation and removing suspended impurities. Its operational stability directly determines the wastewater purification efficiency and discharge compliance rate. To solve the problem of increased filtration resistance and decreased processing capacity caused by impurities clogging the filter cartridge pores during the filtration process, the industry generally adopts backwashing technology. This involves introducing water or air in reverse to use the impact force of the water or air flow to peel off the impurities attached to the surface of the filter media and discharge them from the equipment, thereby restoring the filtration performance of the filter media.

[0003] For example, the wastewater treatment microfilter proposed in authorization announcement number CN222131197U uses a combination of a reduction motor, a rotating rod, gears, a hollow rod, a toothed ring, and a filter screen cylinder to fully filter fine impurities in wastewater through the continuous rotation of the filter screen cylinder.

[0004] However, the aforementioned equipment still has certain shortcomings in application. In wastewater filtration operations, different filtration conditions require different filtration precision. It is necessary to select filter cartridges with the appropriate mesh size according to actual needs to ensure filtration effectiveness. However, the filter cartridges in the aforementioned equipment are fixedly installed inside the control box, lacking a convenient disassembly and assembly structure. This makes it difficult to quickly disassemble and replace the filter cartridges, hindering the selection of the appropriate mesh size based on actual filtration requirements. This significantly limits its application and fails to meet the diverse needs of wastewater treatment scenarios. Therefore, we provide a backwashing wastewater filtration device to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a backwashing wastewater filtration device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A backwashing wastewater filtration device includes an inclined mounting frame. A filter cylinder is mounted on top of the mounting frame, with rolling parts at both ends of the filter cylinder. Support wheels for supporting the rolling parts are installed on both sides of the mounting frame. A backwashing assembly for backwashing the filter cylinder is provided on one side of the mounting frame. A U-shaped frame is fixedly connected to the mounting frame near the lower end of the filter cylinder. A drive shaft is rotatably connected inside the U-shaped frame. A central frame is fixedly connected to one end of the filter cylinder near the U-shaped frame. Two insertion holes are opened on the disc in the middle of the central frame. Two pins are fixedly connected to one end of the drive shaft near the central frame. The pins are inserted into the insertion holes. A drive assembly for driving the drive shaft to rotate is also provided on the mounting frame.

[0007] As a further embodiment of this utility model: the backflush assembly includes an H-shaped frame, which is fixedly connected to one side of the mounting frame. A tilting frame is rotatably connected to the upper end of the H-shaped frame. An air jet pipe is fixedly connected to one end of the tilting frame near the filter cartridge. Several air jet heads are installed on the air jet pipe. The H-shaped frame is provided with a tilting assembly for tilting the tilting frame to lift the air jet pipe. The mounting frame is also provided with an air supply assembly for supplying air into the air jet pipe.

[0008] As a further embodiment of this utility model: the pitching assembly includes a cylinder, which is rotatably connected to the crossbar of the H-shaped frame, and the output end of the cylinder is rotatably connected to the crossbar at the end of the tilting frame away from the jet pipe.

[0009] As a further embodiment of this utility model: the air supply component includes an air compressor, which is installed at one end of the mounting frame near the U-shaped frame. The output end of the air compressor is connected to an air supply hose, and the end of the air supply hose away from the air compressor is connected to the jet pipe.

[0010] As a further improvement of this utility model: a water collection hopper is fixedly connected to the mounting frame below the filter cylinder, and a drain outlet is provided at the lower end of the water collection hopper.

[0011] As a further improvement of this utility model, a slag discharge hopper is fixedly connected to the mounting frame located below the short end of the filter cylinder.

[0012] As a further embodiment of this utility model: the drive assembly includes a reducer, the reducer is installed on the mounting frame near the U-shaped frame, the output shaft of the reducer is connected to the drive shaft, and a drive motor is installed on the mounting frame near the reducer, the output shaft of the drive motor is connected to the input shaft of the reducer.

[0013] As a further improvement of this utility model, each of the four feet of the mounting frame is fixedly connected with a support leg.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model supports the rolling part with a support wheel, and the drive shaft and the central frame adopt a detachable transmission structure, which makes it easy to remove and replace the filter cartridge. This allows the filter cartridge of the appropriate mesh size to be replaced according to the actual working conditions to meet diverse sewage treatment scenarios. At the same time, the backwash component can backwash the filter cartridge during use, thereby blowing out the impurities that are blocked in the filter holes of the filter cartridge, and avoiding the impact of the blockage impurities on the filtration efficiency. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of one side of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the plug rod when it is separated from the insertion hole in this utility model.

[0018] Figure 4 This is a partial structural diagram of the jet pipe in this utility model.

[0019] The components include: 1. Mounting frame; 2. Supporting rollers; 3. Rolling part; 4. Filter cartridge; 5. Tilting frame; 6. Center frame; 7. U-shaped frame; 8. Air compressor; 9. Drive motor; 10. Reducer; 11. Drive shaft; 12. Water collection hopper; 13. Slag discharge hopper; 14. H-shaped frame; 15. Cylinder; 16. Insertion hole; 17. Insertion pin; 18. Air jet pipe; 19. Air jet head; 20. Air supply hose. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 and Figure 2 In this embodiment of the present invention, a backwashing wastewater filtration device includes an inclined mounting frame 1. Support legs are fixedly connected to all four feet of the mounting frame 1. A filter cylinder 4 is mounted above the mounting frame 1, with rolling portions 3 at both ends. Supporting wheels 2 are installed on both sides of the rolling portions 3 on the mounting frame 1. A water collection hopper 12 is fixedly connected to the mounting frame 1 below the filter cylinder 4, with a drain outlet at the lower end of the water collection hopper 12. A slag discharge hopper 13 is fixedly connected to the mounting frame 1 below the lower end of the filter cylinder 4. The supporting wheels 2 support the rolling portions 3, allowing the filter cylinder 4 to rotate between the supporting wheels 2. The water collection hopper 12 collects the filtered liquid phase and discharges it from the drain outlet. The slag discharge hopper 13 receives the separated solid impurities and guides them to be discharged from one side of the mounting frame 1.

[0022] Please see Figure 1 , Figure 2 and Figure 4The mounting frame 1 has a backwashing assembly for backwashing the filter cartridge 4 on one side. The backwashing assembly includes an H-shaped frame 14, which is fixedly connected to one side of the mounting frame 1. A tilting frame 5 is rotatably connected to the upper end of the H-shaped frame 14. An air jet pipe 18 is fixedly connected to the end of the tilting frame 5 near the filter cartridge 4. Several air jet heads 19 are installed on the air jet pipe 18. The H-shaped frame 14 has a tilting assembly for tilting the tilting frame 5 to lift the air jet pipe 18. The tilting assembly includes a cylinder 15. Cylinder 15 is rotatably connected to the crossbar of H-shaped frame 14. The output end of cylinder 15 is rotatably connected to the crossbar of the flipping frame 5 away from the jet pipe 18. During operation, the air supply assembly provides high-pressure gas to the jet pipe 18. The high-pressure gas is blown out through the jet head 19 to backflush the filter cartridge 4, blowing off the impurities attached to the filter holes of the filter cartridge 4, so as to avoid the impurities from clogging the filter and affecting the filtration efficiency. At the same time, when the filter cartridge 4 needs to be replaced, the output end of cylinder 15 can be retracted to drive the flipping frame 5 to flip, so that the jet pipe 18 is raised, which makes it easier to replace the filter cartridge 4.

[0023] Please see Figure 1 and Figure 2 The mounting frame 1 is also equipped with an air supply assembly for supplying air to the jet pipe 18. The air supply assembly includes an air compressor 8, which is installed at one end of the mounting frame 1 near the U-shaped frame 7. The output end of the air compressor 8 is connected to an air supply hose 20, and the end of the air supply hose 20 away from the air compressor 8 is connected to the jet pipe 18. The air compressor 8 is used to supply high-pressure compressed gas to the jet pipe 18. The air supply hose 20 is fixed to the H-shaped frame 14, the flipping frame 5, and the mounting frame 1 with a hose clamp to avoid interference between the loose air pipe and the rotation of the filter cartridge 4. At the same time, the air supply hose 20 is reserved with sufficient length at the crossing point between the H-shaped frame 14 and the flipping frame 5 to ensure that the flipping action of the flipping frame 5 can be carried out normally and to prevent excessive pulling on the air supply hose 20.

[0024] Please see Figure 3A U-shaped frame 7 is fixedly connected to the mounting frame 1 near the lower end of the filter cartridge 4. A drive shaft 11 is rotatably connected inside the U-shaped frame 7. A central frame 6 is fixedly connected to one end of the filter cartridge 4 near the U-shaped frame 7. Two insertion holes 16 are opened on the disc in the middle of the central frame 6. Two pins 17 are fixedly connected to one end of the drive shaft 11 near the central frame 6. The pins 17 are inserted into the insertion holes 16. The pins 17 can be inserted into the insertion holes 16. After the pins 17 are inserted into the insertion holes 16, they can transmit the power of the drive shaft 11 to the central frame 6, causing the filter cartridge 4 to rotate. At the same time, since the filter cartridge 4 is inclined, the central frame 6 will keep the pins 17 stably inserted into the insertion holes 16 under the action of gravity and will not disengage. The pins 17 are directly inserted into the insertion holes 16. When replacing the filter cartridge 4, the filter cartridge 4 can be pulled directly to separate the insertion holes 16 from the pins 17. The separation is convenient and quick.

[0025] Please see Figure 1 The mounting frame 1 is also equipped with a drive assembly for driving the drive shaft 11 to rotate. The drive assembly includes a reducer 10, which is installed on the mounting frame 1 near the U-shaped frame 7. The output shaft of the reducer 10 is connected to the drive shaft 11. A drive motor 9 is installed on the mounting frame 1 near the reducer 10, and the output shaft of the drive motor 9 is connected to the input shaft of the reducer 10. During operation, the drive motor 9 starts, driving the input shaft of the reducer 10 to rotate. The internal transmission components of the reducer 10 operate, reducing and increasing the torque of the power output by the drive motor 9 and transmitting it to the drive shaft 11, causing the drive shaft 11 to rotate at low speed.

[0026] The working principle of this utility model is as follows: When working, the drive motor 9 starts, and the power is transmitted to the drive shaft 11 after being reduced and increased in torque by the reducer 10. The drive shaft 11 is engaged with the insertion hole 16 on the central frame 6 of the filter cylinder 4 through the pin rod 17 at the end, which drives the filter cylinder 4 to rotate. Wastewater can be input through the pipe from the port 6 of the filter cylinder 4 away from the central frame. When flowing through the rotating filter cylinder 4, the liquid phase is collected by the water collection hopper 12 below through the filter cylinder pores and discharged from the drain port. Solid impurities are trapped on the surface of the filter cylinder 4 and then gradually move towards the slag discharge hopper 13 under the action of the inclined filter cylinder 4 and finally discharged from the lower end of the filter cylinder 4 into the slag discharge hopper 13 and discharged from the slag discharge hopper 13.

[0027] When backflushing is required to clear blockages, the air compressor 8 starts and delivers high-pressure gas to the jet pipe 18 through the air supply hose 20. The gas is ejected through the jet head 19 on the jet pipe 18 and blows off the impurities attached to the filter holes of the filter cylinder 4 in the reverse direction. The impurities fall into the slag discharge hopper 13 under the action of gravity and the rotation of the filter cylinder 4.

[0028] When the filter cartridge 4 needs to be replaced, the output end of the cylinder 15 retracts, causing the flipping frame 5 to flip on the H-shaped frame 14, raising the jet pipe 18, and then pulling the filter cartridge 4 to separate the insertion hole 16 of the center frame 6 from the pin rod 17 of the drive shaft 11, so that the filter cartridge 4 can be removed. Then, replace the filter cartridge 4 with the required mesh size, and reverse the operation to re-insert the pin rod 17 into the insertion hole 16. Then, the cylinder 15 resets and drives the jet pipe 18 back to its position, completing the replacement.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A backwashing wastewater filtration device, comprising an inclined mounting frame (1), characterized in that, The mounting frame (1) is provided with a filter cylinder (4) on top. Both ends of the filter cylinder (4) are provided with rolling parts (3). The mounting frame (1) is provided with support wheels (2) on both sides of the rolling parts (3) for supporting the rolling parts (3). One side of the mounting frame (1) is provided with a backwashing assembly for backwashing the filter cylinder (4). A U-shaped frame (7) is fixedly connected to the mounting frame (1) near the low end of the filter cylinder (4). A drive shaft (11) is rotatably connected inside the U-shaped frame (7). A center frame (6) is fixedly connected to one end of the filter cylinder (4) near the U-shaped frame (7). Two insertion holes (16) are opened on the disc in the middle of the center frame (6). Two pin rods (17) are fixedly connected to one end of the drive shaft (11) near the center frame (6). The pin rods (17) are inserted into the insertion holes (16). The mounting frame (1) is also provided with a drive assembly for driving the drive shaft (11) to rotate.

2. The backwashing wastewater filtration device according to claim 1, characterized in that, The backflush assembly includes an H-shaped frame (14), which is fixedly connected to one side of the mounting frame (1). A tilting frame (5) is rotatably connected to the upper end of the H-shaped frame (14). An air jet pipe (18) is fixedly connected to one end of the tilting frame (5) near the filter cartridge (4). Several air jet heads (19) are installed on the air jet pipe (18). The H-shaped frame (14) is provided with a tilting assembly for driving the tilting frame (5) to tilt and lift the air jet pipe (18). The mounting frame (1) is also provided with an air supply assembly for supplying air into the air jet pipe (18).

3. The backwashing wastewater filtration device according to claim 2, characterized in that, The pitch assembly includes a cylinder (15) which is rotatably connected to the crossbar of the H-shaped frame (14). The output end of the cylinder (15) is rotatably connected to the crossbar of the tilting frame (5) away from the jet pipe (18).

4. The backwashing wastewater filtration device according to claim 3, characterized in that, The air supply assembly includes an air compressor (8), which is installed on the mounting frame (1) at one end near the U-shaped frame (7). The output end of the air compressor (8) is connected to an air supply hose (20), and the end of the air supply hose (20) away from the air compressor (8) is connected to the jet pipe (18).

5. The backwashing wastewater filtration device according to claim 1, characterized in that, The mounting frame (1) is fixedly connected to a water collection hopper (12) located below the filter cylinder (4), and the lower end of the water collection hopper (12) is provided with a drain outlet.

6. The backwashing wastewater filtration device according to claim 1, characterized in that, The mounting frame (1) is fixedly connected to the slag discharge hopper (13) at the position below the short end of the filter cylinder (4).

7. The backwashing wastewater filtration device according to claim 1, characterized in that, The drive assembly includes a reducer (10), which is installed on the mounting frame (1) near the U-shaped frame (7). The output shaft of the reducer (10) is connected to the drive shaft (11). A drive motor (9) is installed on the mounting frame (1) near the reducer (10), and the output shaft of the drive motor (9) is connected to the input shaft of the reducer (10).

8. A backwashing wastewater filtration device according to claim 1, characterized in that, The mounting frame (1) has four fixed support legs at each of its four feet.

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