A multi-stage filtration sewage treatment device

Abstract

The application relates to the technical field of sewage treatment, in particular to a multi-stage filtration sewage treatment equipment which comprises a treatment tower and further comprises: a water inlet pipe used for inputting sewage needing treatment to the bottom of the treatment tower; a water outlet pipe which is installed at the bottom of a drainage tank; the height of the drainage tank is adjusted according to the water level in the treatment tower; a surge assembly used for treating the sewage input into the treatment tower; a timing sealing assembly used for carrying out settlement isolation in the treatment tower at a specified time after the sewage is input; and a cleaning assembly used for separating and discharging flocculent sludge and supernatant after the settlement is completed. The device buffers the input pressure of the sewage through the setting of the surge assembly, so that the water flow is gently transported into the treatment tower, thereby being favorable for avoiding the case that the input pressure of the sewage is too large to cause the breakage of the aerobic granular sludge in the treatment tower, and the case that the breakage of the aerobic granular sludge affects the sewage treatment effect.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and more particularly to a multi-stage filtration wastewater treatment device. Background Technology

[0002] Aerobic granular sludge (AGS) technology is commonly used in wastewater treatment. Aerobic granular sludge is granular activated sludge formed by microorganisms through self-aggregation under aerobic conditions. Its particle size is usually greater than 0.2 mm, and it has a unique layered structure: the outer layer is the aerobic zone, and the inner layers are successively the anoxic zone and the anaerobic zone. This structure allows AGS to simultaneously achieve COD removal and nitrogen and phosphorus removal in a single reactor. This process integrates all biological reactions and sedimentation processes into a single reactor, eliminating the need for secondary sedimentation tanks and separate anaerobic / anoxic zones, which can significantly save land and reduce energy consumption.

[0003] In existing technologies, when using aerobic granular sludge processes, the incoming wastewater needs to be treated to prevent damage to the aerobic granular sludge upon entry. Furthermore, the sludge needs to be isolated during the treatment process to separate the aerobic granular sludge process from the flocculent sludge, thus preventing the flocculent sludge from mixing with the aerobic granular sludge and interfering with the treatment effect of the aerobic granular sludge. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-stage filtration wastewater treatment device.

[0005] This invention provides a multi-stage filtration wastewater treatment device, including a treatment tower, and further comprising:

[0006] An inlet pipe is connected to the bottom of the treatment tower and is used to input the wastewater to be treated into the bottom of the treatment tower;

[0007] The outlet pipe is installed at the top of the treatment tower and at the bottom of the drain tank. The drain tank is height-adjustable according to the water level inside the treatment tower and is used to discharge the treated upper clear liquid inside the treatment tower.

[0008] The surging component, installed between the inlet pipe and the treatment tower, is used to treat the sewage entering the treatment tower and reduce the input pressure of the sewage to avoid damage to the aerobic granular sludge caused by high pressure.

[0009] A timed sealing component is installed in the middle of the treatment tower to isolate the sedimentation inside the treatment tower within a specified time after the sewage is input, so as to separate the rapidly settling aerobic granular sludge from the slowly settling flocculent sludge.

[0010] A cleaning component, installed in the middle of the treatment tower, is used to discharge the flocculent sludge after settling and to drive the outlet pipe to adjust and discharge the supernatant.

[0011] During operation, staff deliver the wastewater to be treated into the treatment tower through the inlet pipe. When the wastewater is delivered into the treatment tower, the pressure of the wastewater input is buffered by the surging component, which allows the water to flow gently into the treatment tower. This helps to prevent the aerobic granular sludge inside the treatment tower from being damaged due to excessive input pressure, which would affect the wastewater treatment effect.

[0012] After wastewater is fed into the treatment tower, sludge gradually settles. Since the settling speed of aerobic granular sludge is much greater than that of flocculent sludge, a timed sealing component is activated after the wastewater has settled for a set time. This component isolates the interior of the treatment tower, allowing subsequent flocculent sludge to settle above the sealing component. New aerobic granular sludge gradually forms below the sealing component. After the flocculent sludge settles, the supernatant and flocculent sludge are cleaned separately to achieve preliminary wastewater treatment. Furthermore, the formation of aerobic granular sludge during the treatment process enhances the rapid settling effect of the wastewater, thereby improving and maintaining treatment efficiency.

[0013] Preferably, the surging component includes:

[0014] A water inlet tank is fixed to the outer wall of the treatment tower, and the outer wall is connected to the water inlet pipe;

[0015] Multiple connecting pipes are arranged in a circular array inside the treatment tower, with one end connected to the water inlet tank;

[0016] Multiple water inlet balls are fixed to the other end of each of the aforementioned connecting pipes;

[0017] Multiple sets of inner balls, with multiple concentrically arranged inner balls forming a group, and a group of inner balls fixed inside a water inlet ball, with the end of the connecting pipe only connected to the innermost inner ball;

[0018] Several sets of circular holes, with multiple circular holes forming a group, and a group of circular holes being formed on the outer wall of the water inlet ball or the inner ball, and the circular holes on adjacent inner balls and adjacent inner balls and the water inlet ball being staggered;

[0019] The external sewage is connected to the inlet pipe, which transports the sewage to the inlet tank. The sewage inside the inlet tank flows along the connecting pipe to each connected inner ball, and then flows outward through the round hole of the inner ball. During the outward flow, it is blocked by the outer inner ball and the inlet ball to block the impact of the water flow, thereby helping to reduce the impact force of the water flow when the sewage is input into the treatment tower.

[0020] It should be noted that the wastewater entering the treatment tower needs to undergo preliminary treatment to remove impurities in order to avoid clogging of the surging components and internal filters.

[0021] Preferably, the surging component further includes:

[0022] Several buffer balls are rotatably installed inside each of the circular holes via a rotating shaft. Each buffer ball is divided into an upper hemisphere and a lower hemisphere, with the lower hemisphere having a higher density than the upper hemisphere. A friction layer is provided at the position where the outer wall of the rotating shaft of the buffer ball is rotatably connected to the water inlet ball or the inner ball.

[0023] The buffer spheres are designed so that when wastewater passes through the circular holes, the flow of water causes the buffer spheres to rotate, thereby converting kinetic energy to buffer the impact of the wastewater. The upper and lower hemispheres of the buffer spheres further enhance the buffering effect, ensuring that when wastewater is transported to the interior of the treatment tower, it does not directly impact the aerobic granular sludge inside the tower, but instead flows gently into the tower.

[0024] Preferably, the timed sealing component includes:

[0025] Both partitions are vertically slidably installed inside the processing tower;

[0026] Multiple water inlets are arranged in a linear array through the top of the partition, and the water inlets on two partitions are aligned.

[0027] Multiple flip-up plates are respectively flipped and installed inside each of the water inlets;

[0028] Multiple sets of ropes, each end of which is fixed between the flip plates inside two relatively aligned water inlets;

[0029] Two sets of first mounting boxes are fixed to the edges of the two partitions in a circular array. The two sets of first mounting boxes are aligned, and a sliding sealing box is slidably inserted between the two aligned first mounting boxes.

[0030] Multiple cylinders are located inside each of the sliding sealing boxes, with the fixed end of the cylinder fixed to the lower first mounting box and the telescopic end of the cylinder fixed to the upper first mounting box.

[0031] Preferably, the cleaning component includes:

[0032] The sludge discharge box is fixedly connected to the side wall of the treatment tower and located above the partition. Its bottom is attached to the partition and is externally connected to an externally installed sludge recovery box.

[0033] A rinsing tank is fixedly connected to the side wall of the treatment tower and is positioned opposite to the sludge discharge tank. The rinsing tank is equipped with a high-pressure nozzle, which is connected to an external water source.

[0034] Preferably, it further includes:

[0035] The timed sealing component is provided in two sets. The cleaning component is located above the lower timed sealing component. The flip plate of the upper timed sealing component is a filter plate, and the flip plate of the lower timed sealing component is a sealing plate.

[0036] Multiple second mounting boxes are respectively installed on the side walls of each of the partitions;

[0037] Multiple sets of straight pipes are arranged in a circular array and fixed inside each of the second mounting boxes;

[0038] Multiple electrically operated telescopic rods are fixed inside each of the straight tubes;

[0039] Multiple arc-shaped pieces are respectively installed at the ends of the telescopic rods of each of the electric telescopic rods;

[0040] Multiple guide pins are respectively fixed to the side wall of each of the arc-shaped pieces;

[0041] A threaded rod is rotatably installed inside the processing tower and passes through the partition plate; the guide pin is threadedly adapted to the threaded rod.

[0042] The first motor is fixed inside the processing tower and drives the threaded rod to rotate through the output shaft.

[0043] Preferably, it further includes:

[0044] Multiple elastic rods are respectively fixed between the telescopic rod end of each of the electric telescopic rods and the corresponding arc-shaped plate.

[0045] Preferably, it further includes:

[0046] A filter cover is fixed inside the processing tower and covers the center of the bottom of the processing tower.

[0047] Preferably, it further includes:

[0048] A collection box is fixed to the bottom of the processing tower;

[0049] The filter screen is fixed at the center of the inside of the collection box;

[0050] The second motor is fixed to the bottom of the collection box;

[0051] A take-up roller is rotatably mounted inside the bottom of the collection box, and the second motor drives the take-up roller to rotate through its output shaft;

[0052] An opening is formed at the bottom of the processing tower;

[0053] An elastic plate is disposed inside the opening, and its edge is connected to the inner wall of the opening through a circumferential array of fixing points;

[0054] Multiple guide tubes, arranged in a circumferential array, are fixed to the bottom of the inner wall of the collection box;

[0055] A guide cable is inserted inside the guide tube, with one end wrapped and fixed to the outside of the take-up roller, and the other end fixedly connected to the edge of the elastic plate, with the fixing points staggered.

[0056] A cleaning opening is provided on the side wall of the collection box, and a control valve is provided inside the cleaning opening.

[0057] Preferably, the guide cable specifically includes:

[0058] The winding end is flexible and faces the take-up roller, with the end wound and fixed to the outside of the take-up roller.

[0059] The support end is rigidly configured, facing the edge of the elastic plate, and is fixedly connected to the edge of the elastic plate.

[0060] Compared with the prior art, the present invention has the following beneficial effects:

[0061] The surging component buffers the pressure of the incoming sewage, allowing the water to flow gently into the treatment tower. This helps prevent excessive sewage input pressure from damaging the aerobic granular sludge inside the treatment tower, which would otherwise affect the sewage treatment effect. Attached Figure Description

[0062] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0063] Figure 2 This is a schematic diagram of the overall cross-section of the present invention. Figure 1 .

[0064] Figure 3 For the present invention Figure 2 A magnified structural diagram of point A in the middle.

[0065] Figure 4 For the present invention Figure 2 A magnified structural diagram at point B in the middle.

[0066] Figure 5 This is a schematic diagram of the overall cross-section of the present invention. Figure 2 .

[0067] Figure 6 For the present invention Figure 5 A magnified structural diagram at point C.

[0068] Figure 7 For the present invention Figure 5 A magnified structural diagram at point D.

[0069] In the diagram: 1. Treatment tower; 101. Inlet pipe; 102. Outlet pipe; 103. Drainage tank; 2. Inlet ball; 201. Inner ball; 202. Circular hole; 203. Connecting pipe; 204. Inlet tank; 3. Buffer ball; 4. Baffle plate; 401. Water inlet; 402. Tilting plate; 403. Rope; 404. First mounting box; 405. Cylinder; 406. Sliding sealing box; 5. Sludge discharge box; 501. Flushing... 6. Washing box; 7. Second mounting box; 8. Arc-shaped plate; 9. Guide pin; 10. Straight tube; 11. Electric telescopic rod; 12. Threaded rod; 13. First motor; 14. Elastic rod; 15. Filter cover; 16. Elastic plate; 17. Opening; 18. Collection box; 19. Filter screen; 10. Guide tube; 11. Guide rope; 12. Take-up roller; 13. Second motor; 14. Cleaning opening. Detailed Implementation

[0070] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0071] like Figures 1 to 7 The wastewater treatment equipment shown includes a treatment tower 1, and further includes:

[0072] The inlet pipe 101 is connected to the bottom of the treatment tower 1 and is used to input the wastewater to be treated into the bottom of the treatment tower 1.

[0073] The outlet pipe 102 is installed at the top of the treatment tower 1 and at the bottom of the drain tank 103. The drain tank 103 is height-adjusted according to the water level inside the treatment tower 1 and is used to discharge the treated upper clear liquid inside the treatment tower 1.

[0074] The surging component is installed between the inlet pipe 101 and the treatment tower 1 to treat the sewage entering the treatment tower 1 and reduce the input pressure of the sewage to avoid damage to the aerobic granular sludge caused by high pressure.

[0075] A timed sealing component is installed in the middle of treatment tower 1 to isolate the sedimentation inside treatment tower 1 within a specified time after the sewage is input, so as to separate the rapidly settling aerobic granular sludge from the slowly settling flocculent sludge.

[0076] The cleaning component, installed in the middle of the treatment tower 1, is used to discharge the flocculent sludge after settling and to drive the outlet pipe 102 to adjust and discharge the supernatant.

[0077] In the existing technology, when using the aerobic granular sludge process, the incoming wastewater needs to be treated to avoid damage to the aerobic granular sludge when the wastewater enters. In addition, the sludge needs to be isolated during the treatment process to separate the aerobic granular sludge process from the flocculent sludge, so as to avoid the flocculent sludge from mixing with the aerobic granular sludge and interfering with the treatment effect of the aerobic granular sludge.

[0078] This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: During operation, the staff will transport the sewage to be treated into the interior of the treatment tower 1 through the inlet pipe 101. When the sewage is transported into the interior of the treatment tower 1, the pressure of the sewage input is buffered by the buffering effect of the surging component during the input process, so that the water flow is gently transported into the interior of the treatment tower 1. This helps to avoid the situation where the aerobic granular sludge inside the treatment tower 1 is damaged due to excessive sewage input pressure, which would affect the sewage treatment effect.

[0079] After the wastewater is fed into the treatment tower 1, the sludge gradually settles. Since the settling speed of aerobic granular sludge is much greater than that of flocculent sludge, after the wastewater has finished settling, a timed sealing component is activated after a set settling time. The timed sealing component divides the interior of the treatment tower 1, thus isolating the aerobic granular sludge after settling. This allows subsequent flocculent sludge to settle above the timed sealing component, while new aerobic granular sludge gradually forms below it. After the flocculent sludge above has settled, the supernatant and flocculent sludge are cleaned separately to achieve preliminary treatment of the wastewater. During the treatment process, aerobic granular sludge is formed to improve the rapid settling effect of the wastewater, thereby improving and maintaining the wastewater treatment efficiency.

[0080] As an optional embodiment, the surge component includes:

[0081] The water inlet tank 204 is fixed to the outer wall of the treatment tower 1, and the outer wall is connected to the water inlet pipe 101.

[0082] Multiple connecting pipes 203 are arranged in a circular array inside the processing tower 1, with one end connected to the water inlet tank 204;

[0083] Multiple water inlet balls 2 are fixed to the other end of each connecting pipe 203;

[0084] Multiple sets of inner balls 201, multiple concentric inner balls 201 form a group, a group of inner balls 201 are fixed inside a water inlet ball 2, and the end of the connecting pipe 203 is only connected to the innermost inner ball 201;

[0085] Several sets of circular holes 202, multiple circular holes 202 form a set, a set of circular holes 202 is opened on the outer wall of the water inlet ball 2 or the inner ball 201, and the circular holes 202 on adjacent inner balls 201 and adjacent inner balls 201 and the water inlet ball 2 are staggered.

[0086] The external sewage is connected to the inlet pipe 101, which transports the sewage to the inlet tank 204. The sewage inside the inlet tank 204 flows along the connecting pipe 203 to each connected inner ball 201, and then flows outward along the round hole 202 of the inner ball 201. During the outward flow, it is blocked by the outer inner ball 201 and the inlet ball 2, which blocks the impact of the water flow, thereby helping to reduce the impact force of the water flow when the sewage is input into the treatment tower 1.

[0087] It should be noted that the wastewater entering the treatment tower 1 needs to undergo preliminary treatment to remove impurities in order to avoid clogging of the surging components and internal filters.

[0088] As an optional embodiment, the surge component further includes:

[0089] Several buffer balls 3 are rotatably installed inside each circular hole 202 via a rotating shaft. The buffer balls 3 are divided into an upper hemisphere and a lower hemisphere, with the lower hemisphere having a higher density than the upper hemisphere. A friction layer is provided at the position where the outer wall of the rotating shaft of the buffer ball 3 is rotatably connected to the water inlet ball 2 or the inner ball 201.

[0090] The buffer ball 3 is designed so that when the sewage passes through the circular hole 202, the flow of water will cause the buffer ball 3 to rotate, thereby buffering the impact of the sewage through the conversion of kinetic energy. Furthermore, the upper and lower hemispheres of the buffer ball 3 are designed to enhance the buffering effect, so that when the sewage is transported to the interior of the treatment tower 1, it will not directly impact the aerobic granular sludge inside the treatment tower 1, but will instead surge into the interior of the treatment tower 1, causing the sewage to flow in gently.

[0091] As an optional embodiment, the timed shut-off component includes:

[0092] Both partitions 4 are vertically slidably installed inside the processing tower 1;

[0093] Multiple water inlets 401 are arranged in a linear array through the top of the partition 4, and the water inlets 401 on the two partitions 4 are aligned.

[0094] Multiple flip plates 402 are flipped and installed inside each water inlet 401;

[0095] Multiple sets of ropes 403 are fixed at both ends between the flip plates 402 inside two relatively aligned water inlets 401;

[0096] Two sets of first mounting boxes 404 are fixed in a circular array on the edges of two partitions 4. The two sets of first mounting boxes 404 are aligned, and a sliding sealing box 406 is slidably inserted between the two aligned first mounting boxes 404.

[0097] Multiple cylinders 405 are located inside each sliding sealing box 406. The fixed end of the cylinder 405 is fixed inside the lower first mounting box 404, and the telescopic end of the cylinder 405 is fixed to the upper first mounting box 404.

[0098] During the sewage input process, the two baffles 4 are in a separated state. At this time, the water inlets 401 inside the two baffles 4 are in an open state, allowing sewage to pass through smoothly. After the sewage has settled, the start cylinder 405 is controlled. The cylinder 405 drives the two first mounting boxes 404 to move in opposite directions. The first mounting boxes 404 drive the two baffles 4 to move in opposite directions. After the baffles 4 move in opposite directions, they pull the aligned flipping plates 402, causing the flipping plates 402 to flip under the pull of the rope 403. This causes the flipping plates 402 to flip and block the water inlets 401, thereby achieving the sealing and isolation of sludge.

[0099] As an optional embodiment, the cleaning component includes:

[0100] The sludge discharge box 5 is fixedly connected to the side wall of the treatment tower 1 and located above the partition 4. Its bottom is attached to the partition 4 and externally connected to the sludge recovery box.

[0101] The flushing box 501 is fixedly connected to the side wall of the treatment tower 1 and is set opposite to the sludge discharge box 5. The flushing box 501 is equipped with a high-pressure nozzle, which is connected to an external water source.

[0102] After the sewage has settled and the supernatant has been discharged, the high-pressure nozzle connected inside the flushing tank 501 can flush the top of the partition 4 with high-pressure water. The high-pressure water sprayed from the high-pressure nozzle contains a large amount of airflow and a small amount of waterflow. The impact force of the airflow cleans the flocculent sludge, while the small amount of waterflow cleans the residual sludge. This helps to reduce water waste during the cleaning process. At the same time, the small amount of waterflow can improve the cleaning effect of the sludge. The flushed sludge is discharged along the sludge discharge tank 5, thereby collecting and treating the sludge.

[0103] As an optional embodiment, it also includes:

[0104] There are two sets of timed sealing components. The cleaning component is located above the lower timed sealing component. The flip plate 402 of the upper timed sealing component is a filter plate, and the flip plate 402 of the lower timed sealing component is a sealing plate.

[0105] Multiple second mounting boxes 6 are respectively installed on the side walls of each partition 4;

[0106] Multiple sets of straight tubes 603 are arranged in a circular array and are fixed inside each of the second mounting boxes 6;

[0107] Multiple electric telescopic rods 604 are fixed inside each straight tube 603;

[0108] Multiple arc-shaped pieces 601 are respectively installed at the ends of the telescopic rods of each electric telescopic rod 604;

[0109] Multiple guide pins 602 are respectively fixed to the side wall of each arc-shaped piece 601;

[0110] The threaded rod 605 is rotatably installed inside the processing tower 1 and passes through the partition plate 4. The guide pin 602 is threadedly guided and adapted to the threaded rod 605.

[0111] The first motor 606 is fixed inside the processing tower 1 and drives the threaded rod 605 to rotate through the output shaft;

[0112] The flip plate 402 of the upper-layer timed sealing component is a filter screen plate. This prevents sludge from being re-mixed in when the supernatant is discharged after the sludge has settled and separated. At this time, the first motor 606 and the electric telescopic rod 604 are activated. The first motor 606 drives the threaded rod 605 to rotate through the output shaft. The electric telescopic rod 604 drives the arc-shaped piece 601 to move, so that the arc-shaped pieces 601 inside the same second mounting box 6 merge to form a complete cylinder. The guide pin 602 inside the cylinder enters the thread of the threaded rod 605 to form a fit. When the threaded rod 605 rotates, it is guided and driven by the guide pin 602, thereby achieving vertical drive of the second mounting box 6 and the partition 4 to achieve height adjustment of the partition 4. And through the adjustment of the arc-shaped piece 601, the individual adjustment of a partition 4 can be achieved to adjust the position of the sealing isolation as needed. The upper timed sealing component can also adjust its height as the supernatant is discharged to keep it always below the liquid surface.

[0113] As an optional embodiment, it also includes:

[0114] Multiple elastic rods 7 are respectively fixed between the telescopic rod end of each electric telescopic rod 604 and the corresponding arc-shaped piece 601;

[0115] The elastic rod 7 is designed to cushion the arc-shaped piece 601 during merging, thereby allowing the guide pin 602 to make way for the threaded rod 605 when it is not aligned, thus preventing damage to the components.

[0116] As an optional embodiment, it also includes:

[0117] The filter cover 8 is fixed inside the processing tower 1 and covers the center of the bottom of the processing tower 1;

[0118] The filter cover 8 is designed so that when aerobic granular sludge is damaged after long-term use, it can pass through the filter cover 8 for filtration. This allows the damaged aerobic granular sludge to be located inside the filter cover 8, which is beneficial for separating the damaged aerobic granular sludge and maintaining the treatment effect of wastewater.

[0119] As an optional embodiment, it also includes:

[0120] Collection box 902 is fixed to the bottom of processing tower 1;

[0121] The filter screen 903 is fixed at the center of the inside of the collection box 902;

[0122] The second motor 907 is fixed to the bottom of the collection box 902;

[0123] The take-up roller 906 is rotatably mounted inside the bottom of the collection box 902, and the second motor 907 drives the take-up roller 906 to rotate through the output shaft;

[0124] Opening 901 is located at the bottom of processing tower 1;

[0125] An elastic plate 9 is disposed inside the opening 901, and its edge is connected to the inner wall of the opening 901 through a fixed point arranged in a circumferential array;

[0126] Multiple guide tubes 904 are arranged in a circular array and fixed to the bottom of the inner wall of the collection box 902;

[0127] The guide cable 905 is inserted inside the guide tube 904, with one end wrapped and fixed to the outside of the take-up roller 906, and the other end fixedly connected to the edge of the elastic plate 9, with the fixing points staggered.

[0128] A cleaning opening 908 is provided on the side wall of the collection box 902, and a control valve is provided inside the cleaning opening 908;

[0129] After the second motor 907 starts, it drives the take-up roller 906 to rotate through the output shaft. After the take-up roller 906 rotates, it can pull the guide cable 905. The guide cable 905 moves along the guide tube 904, thereby pulling the edge of the elastic plate 9, so that the edge of the elastic plate 9 is pulled to a downward tilt, forming an inclined guide groove between the edge of the opening 901 and the edge of the opening. This guides the sludge screened by the filter cover 8 to flow downward, so that the broken aerobic granular sludge can be separated and collected downward. The filter screen 903 can separate the sludge from the water flow after separation, and then clean them separately through the cleaning opening 908. When the take-up roller 906 resets, the guide cable 905 is pulled back to its original position by the elastic force of the elastic plate 9, and the opening 901 is resealed at the same time.

[0130] As an optional embodiment, the guide cable 905 specifically includes:

[0131] The winding end is flexibly set and is positioned toward the take-up roller 906, with the end wound and fixed to the outside of the take-up roller 906;

[0132] The support end is rigidly set, facing the edge of the elastic plate 9, and is fixedly connected to the edge of the elastic plate 9.

[0133] The winding end facilitates the pulling and winding of the guide cable 905, and the support end has a certain degree of rigidity, which can support the position of the elastic plate 9, thereby helping to avoid the pulling caused by the impact of water flow during cleaning.

[0134] Working principle of the invention: During operation, the wastewater to be treated is transported into the treatment tower 1 through the inlet pipe 101. When the wastewater is transported into the treatment tower 1, the pressure of the wastewater input is buffered by the buffering effect of the surging component, so that the water flow is transported into the treatment tower 1 gently. This helps to avoid the situation where the aerobic granular sludge inside the treatment tower 1 is damaged due to excessive input pressure of the wastewater, which would affect the wastewater treatment effect.

[0135] After the wastewater is fed into the treatment tower 1, the sludge gradually settles. Since the settling speed of aerobic granular sludge is much greater than that of flocculent sludge, after the wastewater has finished settling, a timed sealing component is activated after a set settling time. The timed sealing component divides the interior of the treatment tower 1, thus isolating the aerobic granular sludge after settling. This allows subsequent flocculent sludge to settle above the timed sealing component, while new aerobic granular sludge gradually forms below it. After the flocculent sludge above has settled, the supernatant and flocculent sludge are cleaned separately to achieve preliminary treatment of the wastewater. During the treatment process, aerobic granular sludge is formed to improve the rapid settling effect of the wastewater, thereby improving and maintaining the wastewater treatment efficiency.

[0136] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A multi-stage filtration wastewater treatment device, comprising a treatment tower (1), characterized in that, Also includes: The inlet pipe (101) is connected to the bottom of the treatment tower (1) and is used to input the sewage to be treated into the bottom of the treatment tower (1); The outlet pipe (102) is installed at the top of the treatment tower (1) and at the bottom of the drain tank (103). The drain tank (103) is height-adjusted according to the water level inside the treatment tower (1) to discharge the upper clear liquid after treatment inside the treatment tower (1). The surging component is installed between the inlet pipe (101) and the treatment tower (1) to treat the sewage entering the treatment tower (1) and reduce the input pressure of the sewage to avoid damage to the aerobic granular sludge caused by high pressure. A timed sealing component is installed in the middle of the treatment tower (1) to perform sedimentation isolation inside the treatment tower (1) within a specified time after the sewage is input, so as to separate the rapidly settling aerobic granular sludge from the slowly settling flocculent sludge. The cleaning component is installed in the middle of the treatment tower (1) to discharge the flocculent sludge after sedimentation and to drive the outlet pipe (102) to adjust and discharge the supernatant.

2. The multi-stage filtration wastewater treatment equipment according to claim 1, characterized in that, The surging component includes: The water inlet tank (204) is fixed on the outer wall of the treatment tower (1), and the outer wall is connected to the water inlet pipe (101). Multiple connecting pipes (203) are arranged in a circular array inside the processing tower (1), with one end connected to the water inlet tank (204). Multiple water inlet balls (2) are respectively fixed to the other end of each of the connecting pipes (203); Multiple sets of inner balls (201), multiple concentric inner balls (201) form a group, a group of inner balls (201) is fixed inside a water inlet ball (2), and the end of the connecting pipe (203) is only connected to the innermost inner ball (201). Several sets of circular holes (202) are provided, and multiple sets of circular holes (202) are provided as a set. A set of circular holes (202) is provided on the outer wall of the water inlet ball (2) or the inner ball (201), and the circular holes (202) on adjacent inner balls (201) and adjacent inner balls (201) and the water inlet ball (2) are staggered.

3. The multi-stage filtration wastewater treatment equipment according to claim 2, characterized in that, The surging component also includes: Several buffer balls (3) are rotatably installed inside each of the circular holes (202) via a rotating shaft. The buffer balls (3) are divided into an upper hemisphere and a lower hemisphere. The lower hemisphere has a higher density than the upper hemisphere. A friction layer is provided at the position where the outer wall of the rotating shaft of the buffer ball (3) is rotatably connected to the water inlet ball (2) or the inner ball (201).

4. The multi-stage filtration wastewater treatment equipment according to claim 1, characterized in that, The timed sealing component includes: Both partitions (4) are vertically slidably installed inside the processing tower (1); Multiple water inlets (401) are arranged in a linear array through the top of the partition (4), and the water inlets (401) on two partitions (4) are aligned. Multiple flip plates (402) are flipped and installed inside each of the water inlets (401); Multiple sets of ropes (403) are fixed at both ends between the flip plates (402) inside the two relatively aligned water inlets (401); Two sets of first mounting boxes (404) are fixed in a circular array on the edges of the two partitions (4). The two sets of first mounting boxes (404) are aligned, and a sliding sealing box (406) is slidably inserted between the two aligned first mounting boxes (404). Multiple cylinders (405) are located inside each of the sliding sealing boxes (406), and the fixed end of the cylinder (405) is fixed to the first mounting box (404) below, while the telescopic end of the cylinder (405) is fixed to the first mounting box (404) above.

5. The multi-stage filtration wastewater treatment equipment according to claim 4, characterized in that, The cleaning component includes: The sludge discharge box (5) is fixedly connected to the side wall of the treatment tower (1) and located above the partition (4). Its bottom is attached to the partition (4) and externally connected to the sludge recovery box. The flushing tank (501) is fixedly connected to the side wall of the treatment tower (1) and is arranged opposite to the sludge discharge tank (5). The flushing tank (501) is equipped with a high-pressure nozzle, which is connected to an external water source.

6. The multi-stage filtration wastewater treatment equipment according to claim 4, characterized in that, Also includes: The timed sealing component is provided in two sets. The cleaning component is located above the lower timed sealing component. The flip plate (402) of the upper timed sealing component is a filter plate, and the flip plate (402) of the lower timed sealing component is a sealing plate. Multiple second mounting boxes (6) are respectively installed on the side walls of each of the partitions (4); Multiple sets of straight pipes (603) are arranged in a circular array and are fixed inside each of the second mounting boxes (6); Multiple electric telescopic rods (604) are respectively fixed inside each of the straight tubes (603); Multiple arc-shaped pieces (601) are respectively installed at the telescopic rod ends of each of the electric telescopic rods (604); Multiple guide pins (602) are respectively fixed to the side wall of each of the arc-shaped pieces (601); A threaded rod (605) is rotatably installed inside the processing tower (1) and passes through the partition plate (4). The guide pin (602) is threadedly adapted to the threaded rod (605). The first motor (606) is fixed inside the processing tower (1) and drives the threaded rod (605) to rotate through the output shaft.

7. The multi-stage filtration wastewater treatment equipment according to claim 6, characterized in that, Also includes: Multiple elastic rods (7) are respectively fixed between the telescopic rod ends of each of the electric telescopic rods (604) and the corresponding arc-shaped pieces (601).

8. A multi-stage filtration wastewater treatment device according to claim 7, characterized in that, Also includes: A filter cover (8) is fixed inside the processing tower (1) and covers the center of the bottom of the processing tower (1).

9. A multi-stage filtration wastewater treatment device according to claim 8, characterized in that, Also includes: A collection box (902) is fixed to the bottom of the processing tower (1); A filter screen (903) is fixed at the center of the inside of the collection box (902); The second motor (907) is fixed to the bottom of the collection box (902); A take-up roller (906) is rotatably mounted inside the bottom of the collection box (902), and the second motor (907) drives the take-up roller (906) to rotate through the output shaft; An opening (901) is formed at the bottom of the processing tower (1); An elastic plate (9) is disposed inside the opening (901), and its edge is connected to the inner wall of the opening (901) through a fixed point arranged in a circumferential array; Multiple guide tubes (904) are arranged in a circumferential array and fixed to the bottom of the inner wall of the collection box (902); The guide cable (905) is inserted inside the guide tube (904), with one end wrapped and fixed to the outside of the take-up roller (906), and the other end fixedly connected to the edge of the elastic plate (9), with the fixing points staggered. A cleaning opening (908) is provided on the side wall of the collection box (902), and a control valve is provided inside the cleaning opening (908).

10. A multi-stage filtration wastewater treatment device according to claim 9, characterized in that, The guide cable (905) specifically includes: The winding end is flexibly configured and is positioned toward the take-up roller (906), with the end wound and fixed to the outside of the take-up roller (906); The support end is rigidly set and is set toward the edge of the elastic plate (9), and is fixedly connected to the edge of the elastic plate (9).

Images