High-speed filter for sewage treatment

Abstract

The invention relates to the technical field of filters, and discloses a high-speed filter for sewage treatment, the high-speed filter comprises a tank body and a filter cartridge, the bottom of a motor is fixedly connected with a first gear, one end of the first gear is in meshed connection with a second gear, and the middle of the second gear is fixedly connected with a hollow pipe; a plurality of connecting columns and brushes are fixed outside the plurality of hollow pipes, a plurality of branch pipes and water spraying pipes are fixedly connected outside the hollow pipes, a motor is started to drive a first gear, a second gear and the hollow pipes to rotate, the hollow pipes drive the connecting columns and the brushes to rotate, and the brushes brush along the interior of the filter cartridge; meanwhile, a hollow pipe drives a branch pipe and a water spraying pipe to rotate, water is conveyed into the hollow pipe by connecting a water pipe and the water pipe and then reaches the interior of the water spraying pipe through the branch pipe, water is rotationally sprayed to the inner wall of the filter cartridge through the water spraying pipe, and therefore synchronous rotary scrubbing can be achieved when water is sprayed to the inner wall of the filter cartridge, and the efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, in particular to a high-speed filter for sewage treatment. Background Art

[0002] In the field of sewage treatment, high-speed filters, as core treatment equipment, undertake the key task of quickly removing impurities such as suspended solids, colloids, and organic matter in sewage. Their performance is directly related to sewage treatment efficiency and effluent water quality. For example, in industrial wastewater treatment, high-speed filters need to reduce the COD concentration from 500mg / L to below 100mg / L within 1 hour to reduce the load on subsequent biochemical treatment units; in the deep treatment stage of municipal sewage treatment plants, high-speed filters must control the effluent turbidity within 1NTU through precise filtration to meet the standards for reclaimed water reuse.

[0003] Traditional high-speed filters for sewage treatment have exposed many problems in actual applications, especially the deficiencies in filtration efficiency and stability, which bring great operational risks to the sewage treatment system. Some high-speed filters adopt a fixed filtration rate and a single filter material design. When treating sewage of different properties, the purification effect varies significantly. When treating high-turbidity industrial wastewater, such as when the suspended solids concentration exceeds 300 mg / L, the filter cartridge is prone to clogging, resulting in a sudden drop in filtration speed. Impurities that are not intercepted will penetrate the filter layer, causing the effluent water quality to exceed the standard. Moreover, after working for a long time, a large amount of solid particles will adhere to the filter cartridge of the existing high-speed filter, causing clogging of the filter holes, affecting the filtering effect and speed. When it is necessary to stop the machine for disassembly and cleaning, the operation is more troublesome, and the cost and maintenance workload are increased.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the existing high-speed filter. Summary of the Invention

[0005] In order to solve the technical problem that a large amount of solid particles will adhere to the existing filter cartridge with a high-speed filter after long-term operation, causing clogging of the filter holes, affecting the filtering effect and speed, and the operation is relatively troublesome when the machine needs to be shut down, disassembled and cleaned, the present invention provides a high-speed filter for sewage treatment.

[0006] The present invention is implemented by the following technical scheme: a high-speed filter for sewage treatment, comprising a tank body and a filter cartridge, the filter cartridge being located inside the tank body, one end of the top of the tank body being fixedly connected to a water inlet, the bottom center of the tank body being fixedly connected to a slag discharge port, a water outlet being provided on one side of the slag discharge port, the top of the water outlet being fixedly connected to the bottom of the tank body, a motor being provided on the top of the tank body, the bottom of the motor being fixedly connected to a first gear, one end of the first gear being meshingly connected to a second gear, the middle part of the second gear being fixedly connected to a hollow tube, the outside of the hollow tube being fixedly provided with a plurality of connecting columns, one end of the plurality of connecting columns being fixedly connected to a plurality of brushes, the brushes being contact-connected to the inner wall of the filter cartridge, the outside of the hollow tube being fixedly provided with a plurality of branch pipes, one end of the plurality of branch pipes being fixedly connected to a plurality of water spray pipes.

[0007] Preferably, the top of the tank body is fixedly connected to a gear box, and the first gear and the second gear are rotatably connected inside the gear box.

[0008] Preferably, the top of the gear box is fixedly connected to a fixing frame, the interior of the fixing frame is fixedly connected to a water pipe, and the bottom of the water pipe is movably connected to the top of the hollow tube.

[0009] Preferably, valves are provided on one side of the top of the water outlet and the slag discharge port.

[0010] Preferably, a bottom plate is provided at the bottom of the filter cartridge, a sleeve is fixedly connected to the top of the bottom plate, a threaded column is provided at the bottom of the hollow tube, and the bottom of the threaded column is threadedly connected to the inside of the sleeve.

[0011] Preferably, two limiting rods are fixedly connected to both ends of the bottom of the filter cartridge, the bottom of the limiting rods is fixedly connected to the bottom of the inner wall of the tank body, and two connecting blocks are fixedly connected to both ends of the bottom plate, and the connecting blocks are movably connected to the outside of the limiting rods.

[0012] Preferably, the bottom end of the limiting rod is fixedly connected to the limiting ring, and the connecting block is movably connected above the limiting ring.

[0013] Preferably, an electric push rod is provided inside the threaded column, the top of the electric push rod is fixedly connected to a telescopic rod, the top of the telescopic rod is fixedly connected to a prism block, the bottom of the hollow tube is processed with a prism groove, and the prism block is plug-connected inside the prism groove.

[0014] Preferably, a groove is machined inside the threaded column, and the electric push rod is located inside the groove.

[0015] Preferably, a movable groove is processed on the top of the groove, and the prism block is movably connected inside the movable groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When the present invention is in use, by starting the motor, the motor will drive the first gear and the second gear to rotate, the second gear will drive the hollow tube to rotate, the hollow tube will drive the connecting column and the brush to rotate, the brush will scrub along the inside of the filter cartridge, and at the same time the hollow tube will drive the branch pipe and the water spray pipe to rotate. By connecting the water pipe, the water pipe transports water into the interior of the hollow tube, and then reaches the interior of the water spray pipe through the branch pipe. The water spray pipe rotates and sprays water on the inner wall of the filter cartridge, thereby facilitating the cleaning of the filter cartridge. By providing the brush and the water spray pipe, the inner wall of the filter cartridge can be rotationally sprayed with water and rotated to scrub at the same time, which is more efficient and has a better cleaning effect.

[0017] When the present invention is in use, by starting the electric push rod, the electric push rod will drive the telescopic rod and the prism block to move downward, so that the prism block is separated from the inside of the prism groove, thereby releasing the limit of the threaded column, so that the position of the threaded column and the sleeve remains unchanged during the rotation of the hollow tube, so that the bottom plate is suspended at the bottom of the filter cartridge, which facilitates the discharge of solid particle impurities generated by cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the tank body and the filter cartridge of the present invention; Figure 3 This is a schematic diagram of the internal structure of the filter cartridge of the present invention; Figure 4 This is a schematic diagram of the connection structure of the hollow tube and the threaded column of the present invention; Figure 5 It is a schematic diagram of the connection structure between the filter cartridge and the base plate of the present invention.

[0019] In the figure: 1. Tank body; 2. Filter cartridge; 3. Water inlet; 4. Water outlet; 5. Slag discharge port; 6. Gear box; 7. Fixed frame; 8. Motor; 9. First gear; 10. Second gear; 11. Hollow tube; 12. Water pipe; 13. Connecting column; 14. Brush; 15. Branch pipe; 16. Water spray pipe; 17. Threaded column; 18. Sleeve; 19. Bottom plate; 20. Connecting block; 21. Limit rod; 22. Limit ring; 23. Electric push rod; 24. Telescopic rod; 25. Prism block; 26. Prism groove; 27. Movable groove; 28. Groove. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] Example 1: Please refer to Figure 1 - Figure 5 , a high-speed filter for sewage treatment in this embodiment includes a tank body 1 and a filter cartridge 2, the filter cartridge 2 is located inside the tank body 1, one end of the top of the tank body 1 is fixedly connected to a water inlet 3, the bottom center of the tank body 1 is fixedly connected to a slag discharge port 5, one side of the slag discharge port 5 is provided with a water outlet 4, the top of the water outlet 4 is fixedly connected to the bottom of the tank body 1, a motor 8 is provided on the top of the tank body 1, the bottom of the motor 8 is fixedly connected to a first gear 9, one end of the first gear 9 is meshingly connected to a second gear 10, the middle part of the second gear 10 is fixedly connected to a hollow tube 11, the outside of the multiple hollow tubes 11 is fixed with a multiple connecting column 13, one end of the multiple connecting columns 13 is fixedly connected to a multiple brushes 14, the brushes 14 are contact-connected to the inner wall of the filter cartridge 2, the outside of the hollow tube 11 is fixedly connected to a multiple branch pipe 15, one end of the multiple branch pipes 15 is fixedly connected to a multiple water spray pipe 16; When the tank body 1 is working on sewage treatment, the water inlet 3 is connected, so that the sewage enters the interior of the filter cartridge 2 through the water inlet 3. After being filtered by the filter cartridge 2, solid particles remain in the interior of the filter cartridge 2. The filtered sewage reaches the bottom of the tank body 1, and the water outlet 4 is opened, so that the filtered sewage is discharged through the water outlet 4. Secondly, when the inner wall of the filter cartridge 2 accumulates a large amount of impurities and dirt due to long-term filtering operations, resulting in a decrease in filtering efficiency or a risk of clogging, it needs to be thoroughly cleaned. At this time, there is no need to disassemble the filter cartridge. Just start the motor 8 to start the automated cleaning process. After starting, the motor 8 quickly outputs torque, driving the first gear 9 coaxially connected thereto to rotate at high speed. The first gear 9 precisely drives the second gear 10 to rotate synchronously through a tooth meshing structure. Since the transmission ratio of the two gears has been optimized, the speed of the motor can be converted into a power output suitable for cleaning operations. The second gear 10 is fixed to the hollow tube 11 by a key connection, so it will drive the hollow tube 11 to rotate smoothly under the support of the bearing. The lower end of the hollow tube 11 is rigidly connected to the connecting column 13 through a flange structure, and the connecting column 13 rotates synchronously therewith, thereby driving the brush 14 installed on its outside to rotate at high speed. These brushes 14 are made of wear-resistant nylon, and the length of the bristles perfectly matches the inner wall spacing of the filter cylinder 2. During the rotation process, they can fit closely to the cylinder wall and perform all-round brushing along the inside of the filter cylinder 2, effectively removing attached stubborn dirt and fine impurities. At the same time, the hollow tube 11 rotates, driving the branch tube 15 welded to its side to rotate together, and the water spray pipe 16 connected to the end of the branch tube 15 performs a circular motion accordingly. A plurality of high-pressure water spray holes are evenly distributed on the wall of the water spray pipe 16, and the water spray direction is calibrated to accurately point to the inner wall of the filter cartridge 2. The top of the hollow tube 11 is connected to the water pipe 12 through a rotary joint. Clean water is transported to the interior of the hollow tube 11 through the water pipe 12, and then diverted to each branch tube 15 through the internal channel, and finally enters the water spray pipe 16 and is sprayed out from the water spray hole at high speed, forming an annular water curtain to wash the cartridge wall; The coordinated design of the brush 14 and the water spray pipe 16 realizes the simultaneous operation of spraying water and brushing at the same time: the water flow can soften stubborn dirt in time, reduce the cleaning resistance of the brush, and quickly flush the impurities brushed away from the cylinder wall; the brush can deeply clean the gaps and dead corners that are difficult to be flushed by the water flow. The cooperation between the two greatly improves the cleaning efficiency. Compared with the single water spraying or brushing method, this combination can not only complete the cleaning in a shorter time, but also ensure that there is no residual dirt on the inner wall of the filter cylinder 2, significantly improve the cleaning effect, and ensure the subsequent filtration accuracy and service life of the filter cylinder. The entire cleaning process does not require manual intervention, the operation is convenient and safe, and the labor intensity and potential risks of manual cleaning are effectively reduced; Furthermore, the top of the tank body 1 is fixedly connected to a gear box 6, and the first gear 9 and the second gear 10 are rotatably connected to the inside of the gear box 6. By providing the gear box 6, the gear box 6 will protect the first gear 9 and the second gear 10; Furthermore, the top of the gear box 6 is fixedly connected to a fixing frame 7, the interior of the fixing frame 7 is fixedly connected to a water pipe 12, and the bottom of the water pipe 12 is movably connected to the top of the hollow tube 11. By providing the fixing frame 7, the fixing frame 7 will fix and limit the water pipe 12, and good sealing is achieved between the hollow tube 11 and the water pipe 12; Furthermore, valves are provided on one side of the top of the water outlet 4 and the slag discharge port 5, so as to facilitate the control of the water outlet 4 and the slag discharge port 5 for drainage. When the sewage is treated and filtered, the water outlet 4 is opened and the slag discharge port 5 is closed, so that the filtered water is discharged through the water outlet 4. When the inner wall of the filter cylinder 2 is cleaned, the slag discharge port 5 is opened and the water outlet 4 is closed, so that the sewage solid mixture is discharged through the slag discharge port 5. Furthermore, a bottom plate 19 is provided at the bottom of the filter cartridge 2, a sleeve 18 is fixedly connected to the top of the bottom plate 19, a threaded column 17 is provided at the bottom of the hollow tube 11, and the bottom of the threaded column 17 is threadedly connected to the inside of the sleeve 18; In the process of the brush 14 and the water spray pipe 16 simultaneously cleaning the inner wall of the filter cartridge 2, the solid particle impurities generated by the cleaning will gradually settle to the bottom of the filter cartridge 2 along with the water flow. To ensure that these impurities can be completely discharged, the equipment is designed with a linked impurity discharge structure: when the hollow tube 11 is continuously rotated by the motor 8, the threaded column 17 coaxially connected to its lower end through the coupling also rotates synchronously; The outer surface of the threaded column 17 is machined with a precision thread, which forms a threaded connection with the sleeve 18 sleeved on the outside. When the threaded column 17 rotates, the sleeve 18 moves smoothly downward along the axis of the column under the action of the threaded transmission. This transmission method can not only accurately control the movement distance of the sleeve 18, but also provide sufficient thrust to overcome the resistance of the sealing structure. The bottom of the sleeve 18 is rigidly fixed to the bottom plate 19 by bolts, so it will drive the bottom plate 19 to move downward synchronously, gradually breaking away from the sealed fit with the bottom of the filter cartridge 2. As the bottom plate 19 moves downward, the preset impurity discharge port at the bottom of the filter cartridge 2 is fully opened, and the solid particulate impurities deposited at the bottom are quickly discharged under the dual effects of gravity and residual water flow. These impurities fall into the collection device below through the impurity discharge port, avoiding secondary contamination. The entire opening process is seamlessly connected with the cleaning operation, and impurity discharge can be completed without additional operation, which not only ensures the thoroughness of cleaning but also simplifies the operation process. Compared with the traditional manual disassembly and impurity discharge method, this linkage design not only saves labor costs, but also ensures that the opening size of the impurity discharge port can be controlled through the stability of the threaded transmission, effectively avoiding the problem of impurities blocking the impurity discharge channel, and further improving the automation level and operating efficiency of the equipment; Furthermore, two limiting rods 21 are fixedly connected to both ends of the bottom of the filter cartridge 2, and the bottom of the limiting rod 21 is fixedly connected to the bottom of the inner wall of the tank body 1. Two connecting blocks 20 are fixedly connected to both ends of the bottom plate 19, and the connecting blocks 20 are movably connected to the outside of the limiting rods 21. When the sleeve 18 drives the bottom plate 19 to move downward, the bottom plate 19 will drive the two connecting blocks 20 to move downward, and the connecting blocks 20 will move downward along the outside of the limiting rods 21. The limiting rods 21 will limit the movement of the connecting blocks 20, so that the bottom plate 19 remains stable during movement. Furthermore, the bottom end of the limiting rod 21 is fixedly connected to the limiting ring 22, and the connecting block 20 is movably connected above the limiting ring 22. By setting the limiting ring 22, the limiting ring 22 will limit the bottom plate 19; Furthermore, an electric push rod 23 is provided inside the threaded column 17, and a telescopic rod 24 is fixedly connected to the top of the electric push rod 23, and a prismatic block 25 is fixedly connected to the top of the telescopic rod 24. A prismatic groove 26 is processed at the bottom of the hollow tube 11, and the prismatic block 25 is plugged into the inside of the prismatic groove 26. When the bottom plate 19 and the connecting block 20 move downward and contact the limiting ring 22, the electric push rod 23 is started, and the electric push rod 23 will drive the telescopic rod 24 to move downward, and the telescopic rod 24 will drive the prismatic block 25 to move downward, so that the prismatic block 25 is separated from the inside of the prismatic groove 26, thereby releasing the limit of the threaded column 17, so that the threaded column 17 and the sleeve 18 remain in the same position during the rotation of the hollow tube 11, so that the bottom plate 19 is suspended at the bottom of the filter cartridge 2, which is convenient for discharging solid particle impurities produced by cleaning; Furthermore, a groove 28 is processed inside the threaded column 17, the electric push rod 23 is located inside the groove 28, and a movable groove 27 is processed on the top of the groove 28. The prism block 25 is movably connected to the inside of the movable groove 27. By providing the movable groove 27, the prism block 25 will move along the inside of the movable groove 27. When the prism block 25 completely enters the inside of the movable groove 27, the movable groove 27 will disengage from the inside of the prism groove 26.

[0022] Working principle: By starting the motor 8, the motor 8 will drive the first gear 9 and the second gear 10 to rotate, the second gear 10 will drive the hollow tube 11 to rotate, the hollow tube 11 will drive the connecting column 13 and the brush 14 to rotate, the brush 14 will scrub along the inside of the filter cartridge 2, and at the same time the hollow tube 11 will drive the branch pipe 15 and the water spray pipe 16 to rotate. By connecting the water pipe 12, the water pipe 12 will transport water into the inside of the hollow tube 11, and then pass through the branch pipe 15 to reach the inside of the water spray pipe 16. The water spray pipe 16 will rotate and spray water on the inner wall of the filter cartridge 2, thereby facilitating the cleaning of the filter cartridge 2. By providing the brush 14 and the water spray pipe 16, the inner wall of the filter cartridge 2 can be scrubbed synchronously with the rotational spray of water, which is more efficient and has a better cleaning effect.

[0023] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A high-speed filter for sewage treatment, comprising a tank body (1) and a filter cartridge (2), characterized in that: The filter cartridge (2) is located inside the tank body (1), one end of the top of the tank body (1) is fixedly connected to a water inlet (3), the center of the bottom of the tank body (1) is fixedly connected to a slag discharge port (5), one side of the slag discharge port (5) is provided with a water outlet (4), the top of the water outlet (4) is fixedly connected to the bottom of the tank body (1), a motor (8) is provided on the top of the tank body (1), the bottom of the motor (8) is fixedly connected to a first gear (9), one end of the first gear (9) is meshingly connected to the first gear (9). A second gear (10) is connected, the middle of the second gear (10) is fixedly connected to a hollow tube (11), the outside of the hollow tube (11) is fixedly connected to a plurality of connecting columns (13), one end of the plurality of connecting columns (13) is fixedly connected to a plurality of brushes (14), the brushes (14) are contact-connected to the inner wall of the filter cartridge (2), the outside of the hollow tube (11) is fixedly connected to a plurality of branch pipes (15), one end of the plurality of branch pipes (15) is fixedly connected to a plurality of water spray pipes (16).

2. A high-speed filter for sewage treatment according to claim 1, characterized in that: The top of the tank body (1) is fixedly connected to a gear box (6), and the first gear (9) and the second gear (10) are rotatably connected inside the gear box (6).

3. A high-speed filter for sewage treatment according to claim 2, characterized in that: The top of the gear box (6) is fixedly connected to a fixing frame (7), the interior of the fixing frame (7) is fixedly connected to a water pipe (12), and the bottom of the water pipe (12) is movably connected to the top of the hollow pipe (11).

4. A high-speed filter for sewage treatment according to claim 1, characterized in that: Valves are provided on one side of the top of the water outlet (4) and the slag discharge outlet (5).

5. A high-speed filter for sewage treatment according to claim 1, characterized in that: A bottom plate (19) is provided at the bottom of the filter cartridge (2), the top of the bottom plate (19) is fixedly connected to a sleeve (18), and a threaded column (17) is provided at the bottom of the hollow tube (11), the bottom of the threaded column (17) is threadedly connected to the inside of the sleeve (18).

6. A high-speed filter for sewage treatment according to claim 5, characterized in that: Two limiting rods (21) are fixedly connected at both ends of the bottom of the filter cartridge (2), and the bottom of the limiting rod (21) is fixedly connected to the bottom of the inner wall of the tank body (1). Two connecting blocks (20) are fixedly connected at both ends of the bottom plate (19), and the connecting blocks (20) are movably connected to the outside of the limiting rod (21).

7. A high-speed filter for sewage treatment according to claim 6, characterized in that: The bottom end of the limiting rod (21) is fixedly connected to the limiting ring (22), and the connecting block (20) is movably connected above the limiting ring (22).

8. A high-speed filter for sewage treatment according to claim 5, characterized in that: An electric push rod (23) is provided inside the threaded column (17), a telescopic rod (24) is fixedly connected to the top of the electric push rod (23), a prism block (25) is fixedly connected to the top of the telescopic rod (24), a prism groove (26) is machined on the bottom of the hollow tube (11), and the prism block (25) is plug-connected inside the prism groove (26).

9. A high-speed filter for sewage treatment according to claim 8, characterized in that: A groove (28) is machined inside the threaded column (17), and the electric push rod (23) is located inside the groove (28).

10. A high-speed filter for sewage treatment according to claim 9, characterized in that: A movable groove (27) is machined on the top of the groove (28), and the prism block (25) is movably connected inside the movable groove (27).

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