An energy-saving and environmentally friendly integrated wastewater purification and recycling equipment and its working method

Abstract

This invention relates to the field of wastewater purification technology, and particularly to an energy-saving and environmentally friendly integrated wastewater purification and recycling device and its working method. It includes a base, with a pretreatment mechanism, a circulating aeration mechanism, and a sedimentation mechanism located on the top of the base. This invention controls the rotation of an aeration tank around a support column. During the rotation of the aeration tank, the inner sludge guide tube rotates and drives several sets of stirring rods to rotate through the outer air guide tube, disturbing the wastewater. Simultaneously, a first spiral pusher rotates in the opposite direction to the inner sludge guide tube, causing the activated sludge accumulated at the bottom of the aeration tank to be pushed upwards by the first spiral pusher and discharged through the sludge guide chamber from several sets of sludge discharge holes to the surface of the stirring rods. At the same time, air enters the sludge guide chamber through the outer air guide tube, the air guide chamber, and several sets of exhaust holes, precisely combining with the activated sludge. This not only avoids the problem of activated sludge accumulation and improves the wastewater purification effect, but also enhances the oxygen supply effect for microorganisms.

Description

Technical Field

[0001] This invention belongs to the field of wastewater purification technology, and specifically relates to an energy-saving and environmentally friendly integrated wastewater purification and recycling device and its working method. Background Technology

[0002] The activated sludge process is an aerobic biological treatment method for wastewater. It can remove dissolved and colloidal biodegradable organic matter, as well as suspended solids and other substances that can be adsorbed by activated sludge from wastewater. It can also remove some phosphorus and nitrogen.

[0003] A search revealed that Chinese Patent Publication No. CN119349763A, published on January 24, 2025, discloses a wastewater treatment device and method for cosmetic processing. The device includes a treatment tank with a stirring assembly inside, an aeration assembly at the top, and a deodorization assembly at the top. The aeration assembly comprises an aeration pipe, a compression assembly, and a drive assembly. The drive assembly drives the compression assembly to compress air into the aeration pipe and simultaneously drives the aeration pipe to perform axial lifting and radial horizontal reciprocating motion. The deodorization assembly includes a deodorization cylinder and an activated carbon filter element, as well as an air extraction component and an air outlet component located within the deodorization cylinder. This invention, through the arrangement of the treatment tank and the stirring assembly, allows wastewater and activated sludge to be added to the treatment tank and pre-mixed under the action of the stirring assembly. The pre-mixed wastewater is then passed into an aerobic tank for biodegradation treatment, resulting in better subsequent wastewater treatment.

[0004] However, the device still has the following drawbacks:

[0005] When using the activated sludge process to purify wastewater, even with agitation, some activated sludge will still accumulate at the bottom of the aeration tank, thus reducing the purification effect. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides an energy-saving and environmentally friendly integrated wastewater purification and recycling device, comprising a base, a support column at the top of the base, a rotating collar sleeved on the outer wall of the support column, and a plurality of transmission collars connected to the outer wall of the rotating collar; a pretreatment mechanism, a circulating aeration mechanism, and a sedimentation mechanism are provided at the top of the base; the pretreatment mechanism, the circulating aeration mechanism, and the sedimentation mechanism are respectively sleeved within the corresponding plurality of transmission collars;

[0007] The circulating aeration mechanism includes an aeration tank that can rotate around a support column; a sludge guide inner tube is rotatably connected to the center of the bottom inner wall of the aeration tank; an air guide outer tube is sleeved on the outer wall of the sludge guide inner tube; and several sets of stirring rods are evenly distributed on the outer wall of the air guide outer tube.

[0008] Each set of stirring rods is provided with a mud guiding chamber and a gas guiding chamber; the mud guiding chamber is connected to the mud guiding inner tube; the mud guiding chamber is located above the gas guiding chamber, and several sets of mud discharge holes are opened at equal intervals on the top; several sets of exhaust holes are opened at equal intervals on the top of the gas guiding chamber; a first spiral push rod that rotates in the opposite direction to the mud guiding inner tube is provided inside the mud guiding inner tube.

[0009] Furthermore, the top of the base is provided with a guide groove; the top view of the guide groove is annular, and an external gear ring is provided inside; a lifting collar is movably sleeved on the top outer wall of the base; a guide ring is drivenly connected to the outer wall of the lifting collar; a sliding groove is provided on the outer wall of the support column; a drive motor is provided at the top of the support column; and an aerator is provided at the top of the guide ring.

[0010] Furthermore, the bottom of the guide ring is provided with an internal gear ring; the support column is provided with a lifting rod; the lifting rod is slidably connected in the slide groove and is drivenly connected to the lifting collar; the output end of the drive motor extends into the support column and is drivenly connected to a first lead screw; the first lead screw is threadedly connected to the lifting rod.

[0011] Furthermore, the pretreatment mechanism includes a pretreatment tank; a sewage inlet is provided on the outer wall of the pretreatment tank; a second lead screw is rotatably connected to the center of the bottom inner wall of the pretreatment tank; a filter frame is slidably connected in the vertical direction inside the pretreatment tank; the filter frame is threadedly connected to the second lead screw; a filter screen is provided inside the filter frame; and several sets of elastic blocks are provided at the bottom edge of the filter frame.

[0012] Furthermore, a rotating block is rotatably connected to the bottom center of the filter frame; the rotating block is threadedly connected to the second lead screw; several sets of scrapers are arranged in a ring array on the outer wall of the rotating block; each set of scrapers moves against the bottom of the filter screen; the bottom outer wall of the second lead screw has a threadless section, and a first gear is provided at one end extending to the bottom of the pretreatment tank; the first gear is meshed with an external gear ring.

[0013] Furthermore, the bottom of the inner sludge guide tube extends to the bottom of the aeration tank and is connected to a second gear; the second gear meshes with the outer gear ring; the air guide cavity communicates with the gap between the inner wall of the outer air guide tube and the inner sludge guide tube; an air guide ring is movably sleeved on the top outer wall of the outer air guide tube.

[0014] Furthermore, the air guide ring communicates with the gap between the inner wall of the outer air guide tube and the inner mud guide tube; the air guide ring is connected to the output end of the aerator; the top of the first spiral push rod extends to the top of the inner mud guide tube and is connected to a third gear; the third gear meshes with the inner gear ring.

[0015] Furthermore, the sedimentation mechanism includes a sedimentation tank; the bottom of the sedimentation tank is provided with a sludge recovery component.

[0016] Furthermore, the sludge recovery assembly includes a sludge recovery pipe; the sludge recovery pipe is provided with a sludge chamber and a power chamber; the sludge chamber is connected to a circulating aeration mechanism; a recovery channel is opened at the top of the sludge chamber; a second spiral push rod is provided in the sludge chamber; an arc-shaped sealing plate is provided at the bottom of the sludge chamber; a recovery motor is provided in the power chamber; and the output end of the recovery motor is connected to the second spiral push rod via a transmission.

[0017] A method for operating an energy-saving and environmentally friendly integrated wastewater purification and recycling device, the method comprising:

[0018] The wastewater is introduced into the pretreatment unit;

[0019] The rotating collar controls the pretreatment mechanism, the circulating aeration mechanism, and the sedimentation mechanism to rotate.

[0020] The pretreatment unit filters suspended pollutants in the wastewater and then introduces the filtered wastewater into the circulating aeration unit;

[0021] The inner tube of the circulating aeration mechanism rotates and drives several sets of stirring rods to disturb the wastewater through the outer air tube.

[0022] The first spiral pusher rotates in the opposite direction to the inner tube of the sludge guide, pushing the sludge accumulated at the bottom of the aeration tank out through the sludge guide chamber and sludge discharge hole on the stirring rod.

[0023] Air is precisely combined with the activated sludge in the sludge guiding chamber through the outer air guide pipe, the air guide chamber and several sets of exhaust holes;

[0024] After aeration is completed, the mixture is introduced into the sedimentation unit and allowed to stand.

[0025] The sedimentation unit recycles and recovers the settled activated sludge;

[0026] Complete the wastewater purification and recycling work.

[0027] The beneficial effects of this invention are:

[0028] 1. By controlling the aeration tank to rotate around the support column, during the rotation of the aeration tank, the inner sludge guide pipe rotates and drives several sets of stirring rods to rotate through the outer air guide pipe, disturbing the wastewater. The first spiral pusher rotates in the opposite direction to the inner sludge guide pipe, so that the activated sludge accumulated at the bottom of the aeration tank is pushed upward by the first spiral pusher and discharged through the sludge guide chamber from several sets of sludge discharge holes to the surface of the stirring rods. At the same time, air enters the sludge guide chamber through the outer air guide pipe, the air guide chamber and several sets of exhaust holes, and precisely combines with the activated sludge. This not only avoids the problem of activated sludge accumulation and improves the wastewater purification effect, but also improves the oxygen supply effect of microorganisms.

[0029] 2. By controlling the rotation of the second lead screw, the filter frame moves downwards due to the threaded connection between the second lead screw and the filter frame. The filter screen directly presses the suspended pollutants in the wastewater to the bottom of the pretreatment tank, facilitating the subsequent introduction of wastewater into the circulating aeration mechanism from the top of the filter frame. Furthermore, the rotating block connected to the bottom of the filter frame is threaded to the second lead screw, causing the rotating block to drive several sets of scrapers to clean the bottom of the filter frame, preventing suspended pollutants from adhering and clogging the filter screen, thus improving the wastewater pretreatment effect of the integrated wastewater purification and recycling equipment.

[0030] 3. After the wastewater purification process is completed, the mixed liquor is transferred from the circulating aeration mechanism to the sedimentation tank. After settling, the activated sludge accumulates at the bottom of the sedimentation tank and enters the sludge chamber through the recycling channel. Then, the second spiral pusher is controlled to rotate and push the activated sludge into the circulating aeration mechanism. When the activated sludge in the circulating aeration mechanism reaches the corresponding volume, the arc-shaped sealing plate opens and discharges the activated sludge to the outside of the equipment, which improves the activated sludge recycling effect and recycling efficiency of the integrated wastewater purification and recycling equipment.

[0031] 4. Existing activated sludge processes typically involve separate primary sedimentation tanks, aeration tanks, and secondary sedimentation tanks that work together to treat wastewater. In contrast, the integrated device of this invention combines pretreatment, aeration, and sedimentation into a single unit. By driving a rotating collar, several sets of transmission collars rotate, which in turn drive the pretreatment mechanism, circulating aeration mechanism, and sedimentation mechanism to rotate synchronously. During this rotation, the internal structure performs corresponding wastewater treatment operations, making it not only more energy-efficient and environmentally friendly but also improving the convenience of wastewater purification and recycling.

[0032] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the structure of an integrated device according to an embodiment of the present invention is shown;

[0035] Figure 2A partial cross-sectional schematic diagram of an integrated device according to an embodiment of the present invention is shown;

[0036] Figure 3 A schematic diagram of the pretreatment mechanism according to an embodiment of the present invention is shown;

[0037] Figure 4 A cross-sectional schematic diagram of a pretreatment mechanism according to an embodiment of the present invention is shown;

[0038] Figure 5 A schematic diagram of the structure of the circulating aeration mechanism according to an embodiment of the present invention is shown;

[0039] Figure 6 A cross-sectional schematic diagram of a circulating aeration mechanism according to an embodiment of the present invention is shown;

[0040] Figure 7 An embodiment of the present invention is shown. Figure 6 An enlarged view of point A;

[0041] Figure 8 A schematic diagram of the precipitation mechanism according to an embodiment of the present invention is shown;

[0042] Figure 9 A cross-sectional schematic diagram of a sludge recycling assembly according to an embodiment of the present invention is shown.

[0043] In the diagram: 1. Base; 2. Support column; 3. Rotating collar; 4. Transmission collar; 5. Pretreatment mechanism; 6. Circulating aeration mechanism; 7. Sedimentation mechanism; 8. Guide groove; 9. External gear ring; 10. Lifting collar; 11. Guide ring; 12. Slide groove; 13. Drive motor; 14. Aerator; 15. Internal gear ring; 16. Lifting rod; 17. First lead screw; 501. Pretreatment tank; 502. Wastewater inlet; 503. Second lead screw; 504. Filter frame; 505. Filter screen; 506. Elastic block; 507. Rotating block; 508. Scraper; 509. First Gear; 601, Aeration tank; 602, Sludge guide inner pipe; 603, Second gear; 604, Air guide outer pipe; 605, Stirring rod; 606, Air guide ring; 607, First spiral pusher; 608, Third gear; 609, Sludge guide chamber; 610, Air guide chamber; 611, Sludge discharge hole; 612, Exhaust hole; 701, Sedimentation tank; 702, Sludge recovery assembly; 7021, Sludge recovery pipe; 7022, Sludge chamber; 7023, Power chamber; 7024, Recovery channel; 7025, Second spiral pusher; 7026, Arc-shaped sealing plate; 7027, Recovery motor. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] This invention provides an energy-saving and environmentally friendly integrated wastewater purification and recycling device, including a base 1. For example, as shown... Figure 1 and Figure 2 As shown, the top of the base 1 is provided with a support column 2; a rotating collar 3 is sleeved on the outer wall of the support column 2; several sets of transmission collars 4 are connected to the outer wall of the rotating collar 3; the top of the base 1 is provided with a pretreatment mechanism 5, a circulating aeration mechanism 6, and a sedimentation mechanism 7; the pretreatment mechanism 5, the circulating aeration mechanism 6, and the sedimentation mechanism 7 are respectively sleeved in the corresponding sets of transmission collars 4; a guide groove 8 is opened on the top of the base 1; the top view of the guide groove 8 is annular, and an external gear ring 9 is provided inside; a lifting collar 1 is movably sleeved on the outer wall of the top of the base 1. 0; A guide ring 11 is driven to the outer wall of the lifting collar 10; A sliding groove 12 is provided on the outer wall of the support column 2; A drive motor 13 is provided at the top of the support column 2; An aerator 14 is provided at the top of the guide ring 11; An internal gear ring 15 is provided at the bottom of the guide ring 11; A lifting rod 16 is provided inside the support column 2; The lifting rod 16 is slidably connected in the sliding groove 12 and driven to the lifting collar 10; The output end of the drive motor 13 extends into the support column 2 and is driven to the first lead screw 17; The first lead screw 17 is threadedly connected to the lifting rod 16.

[0046] In wastewater purification and recycling, wastewater is first introduced into the pretreatment unit 5, where suspended pollutants are filtered. The wastewater is then introduced into the circulating aeration unit 6, where microorganisms in the activated sludge adsorb and oxidize organic pollutants, converting them into carbon dioxide, water, and new microbial cytoplasm. The aerated mixture then flows into the sedimentation unit 7, where gravity sedimentation achieves solid-liquid separation. The activated sludge flocs settle to the bottom, and the supernatant becomes clarified treated water for recycling. Existing activated sludge processes typically use separate primary sedimentation tanks, aeration tanks, and secondary sedimentation tanks for wastewater treatment. This invention's integrated device combines pretreatment, aeration, and sedimentation into a single unit. A driving rotating collar 3 drives several sets of transmission collars 4, which in turn drive the pretreatment unit 5, circulating aeration unit 6, and sedimentation unit 7 to rotate synchronously. During this rotation, the internal structures perform corresponding wastewater treatment, making it more energy-efficient and environmentally friendly, and improving the convenience of wastewater purification and recycling.

[0047] For example, such as Figure 3 and Figure 4 As shown, the pretreatment mechanism 5 includes a pretreatment tank 501; a sewage inlet 502 is provided on the outer wall of the pretreatment tank 501; a second lead screw 503 is rotatably connected to the center of the bottom inner wall of the pretreatment tank 501; a filter frame 504 is slidably connected in the vertical direction inside the pretreatment tank 501; the filter frame 504 is threadedly connected to the second lead screw 503; a filter screen 505 is provided inside the filter frame 504; and several sets of elastic blocks 506 are provided at the bottom edge of the filter frame 504. A rotating block 507 is rotatably connected to the bottom center of the filter frame 504; the rotating block 507 is threadedly connected to the second lead screw 503; several sets of scrapers 508 are arranged in a ring array on the outer wall of the rotating block 507; each set of scrapers 508 moves against the bottom of the filter screen 505; the bottom outer wall of the second lead screw 503 is provided with a threadless section, and a first gear 509 is provided at one end extending to the bottom of the pretreatment tank 501; the first gear 509 is meshed with the outer gear ring 9.

[0048] During wastewater pretreatment, wastewater is first introduced into the pretreatment tank 501 through the wastewater inlet 502. Then, the transmission sleeve 4 is controlled to rotate the pretreatment tank 501. During the rotation of the pretreatment tank 501, the meshing connection between the first gear 509 and the external gear ring 9 causes the first gear 509 to drive the second lead screw 503 to rotate. The threaded connection between the second lead screw 503 and the filter frame 504 causes the filter frame 504 to move downwards. The filter screen 505 directly presses the suspended pollutants in the wastewater to the bottom of the pretreatment tank 501, facilitating the subsequent introduction of wastewater into the circulating aeration mechanism 6 from the top of the filter frame 504. Furthermore, the rotating block 507, which is rotatably connected to the bottom of the filter frame 504, is threadedly connected to the second lead screw 503. This causes the rotating block 507 to drive several sets of scrapers 508 to clean the bottom of the filter frame 504, preventing suspended pollutants from adhering and clogging the filter screen 505, thus improving the wastewater pretreatment effect of the integrated wastewater purification and recycling equipment.

[0049] For example, such as Figure 5 , Figure 6 and Figure 7 As shown, the circulating aeration mechanism 6 includes an aeration tank 601; a sludge guide inner tube 602 is rotatably connected to the center of the bottom inner wall of the aeration tank 601; the bottom of the sludge guide inner tube 602 extends to the bottom of the aeration tank 601 and is connected to a second gear 603; the second gear 603 meshes with an outer gear ring 9; an air guide outer tube 604 is sleeved on the outer wall of the sludge guide inner tube 602; several sets of stirring rods 605 are evenly distributed on the outer wall of the air guide outer tube 604; each set of stirring rods 605 has a set of sludge guide chambers 609 and air guide chambers 610; the sludge guide chambers 609 communicate with the sludge guide inner tube 602; the air guide chambers 610 are connected to the inner wall of the air guide outer tube 604 and the sludge guide inner tube 602. The gaps are connected; the mud guiding chamber 609 is located above the air guiding chamber 610, and a number of mud discharge holes 611 are equally spaced at the top; a number of exhaust holes 612 are equally spaced at the top of the air guiding chamber 610; an air guiding ring 606 is movably sleeved on the top outer wall of the air guiding outer pipe 604; the gap between the air guiding ring 606 and the inner wall of the air guiding outer pipe 604 and the mud guiding inner pipe 602 is connected; the air guiding ring 606 is connected to the output end of the aerator 14; a first spiral push rod 607 is provided inside the mud guiding inner pipe 602; the top of the first spiral push rod 607 extends to the top of the mud guiding inner pipe 602 and is connected to a third gear 608; the third gear 608 is meshed with the inner gear ring 15.

[0050] During wastewater aeration, the wastewater is transferred from the pretreatment tank 501 to the aeration tank 601. Then, the transmission sleeve 4 drives the aeration tank 601 to rotate. During this rotation, the second gear 603 meshes with the outer gear ring 9, and the third gear 608 meshes with the inner gear ring 15. This causes the sludge guide pipe 602 to drive several sets of stirring rods 605 to rotate through the air guide pipe 604, agitating the wastewater. Simultaneously, the first spiral push rod 607 rotates in the opposite direction to the sludge guide pipe 602, and the bottom outer wall of the sludge guide pipe... The aeration tank 601 has a channel for the entry of activated sludge, which allows the activated sludge accumulated at the bottom of the aeration tank 601 to be pushed upward by the first spiral pusher 607 and discharged through the sludge guide chamber 609 from several sets of sludge discharge holes 611 to the surface of the stirring rod 605. At the same time, the aerator 14 accurately introduces air into the sludge guide chamber 609 through the air guide ring 606, the air guide outer pipe 604, the air guide chamber 610 and several sets of exhaust holes 612 to combine with the activated sludge. This not only avoids the problem of activated sludge accumulation and improves the wastewater purification effect, but also improves the oxygen supply effect of microorganisms.

[0051] For example, such as Figure 8 and Figure 9 As shown, the sedimentation mechanism 7 includes a sedimentation tank 701; the bottom of the sedimentation tank 701 is provided with a sludge recovery component 702.

[0052] The sludge recovery assembly 702 includes a sludge recovery pipe 7021; the sludge recovery pipe 7021 is provided with a sludge chamber 7022 and a power chamber 7023; the sludge chamber 7022 is connected to the circulating aeration mechanism 6; a recovery channel 7024 is opened at the top of the sludge chamber 7022; a second spiral push rod 7025 is provided in the sludge chamber 7022; an arc-shaped sealing plate 7026 is provided at the bottom of the sludge chamber 7022; a recovery motor 7027 is provided in the power chamber 7023; the output end of the recovery motor 7027 is connected to the second spiral push rod 7025.

[0053] After the wastewater purification process is completed, the mixed liquor is transferred from the circulating aeration mechanism 6 to the sedimentation tank 701. After settling, the activated sludge accumulates at the bottom of the sedimentation tank 701 and enters the sludge chamber 7022 through the recycling channel 7024. Then, the second spiral push rod 7025 is controlled to rotate to push the activated sludge into the circulating aeration mechanism 6. When the activated sludge in the circulating aeration mechanism 6 reaches the corresponding volume, the arc-shaped sealing plate 7026 opens, discharging the activated sludge to the outside of the equipment, thus improving the activated sludge recycling effect and recovery efficiency of the integrated wastewater purification and recycling equipment.

[0054] By controlling the aeration tank 601 to rotate around the support column 2, during the rotation of the aeration tank 601, the inner sludge guide pipe 602 rotates and drives several sets of stirring rods 605 to rotate through the outer air guide pipe 604, disturbing the wastewater. The first spiral push rod 607 rotates in the opposite direction to the inner sludge guide pipe 602, so that the activated sludge accumulated at the bottom of the aeration tank 601 is pushed upward by the first spiral push rod 607 and discharged through the sludge guide cavity 609 from several sets of sludge discharge holes 611 to the surface of the stirring rods 605. At the same time, air enters the sludge guide cavity 609 through the air guide ring 606, the outer air guide pipe 604, the air guide cavity 610 and several sets of exhaust holes 612 and precisely combines with the activated sludge. This not only avoids the problem of activated sludge accumulation and improves the wastewater purification effect, but also improves the oxygen supply effect of microorganisms.

[0055] By controlling the rotation of the second lead screw 503, and through the threaded connection between the second lead screw 503 and the filter frame 504, the filter frame 504 moves downward. The filter screen 505 directly presses the suspended pollutants in the wastewater to the bottom of the pretreatment tank 501, facilitating the subsequent introduction of wastewater into the circulating aeration mechanism 6 from above the filter frame 504. Furthermore, the rotating block 507, which is rotatably connected to the bottom of the filter frame 504, is threadedly connected to the second lead screw 503. This causes the rotating block 507 to drive several sets of scrapers 508 to clean the bottom of the filter frame 504, preventing suspended pollutants from adhering to and clogging the filter screen 505, thereby improving the wastewater pretreatment effect of the integrated wastewater purification and recycling equipment.

[0056] After the wastewater purification process is completed, the mixed liquor is transferred from the circulating aeration mechanism 6 to the sedimentation tank 701. After settling, the activated sludge accumulates at the bottom of the sedimentation tank 701 and enters the sludge chamber 7022 through the recycling channel 7024. Then, the second spiral push rod 7025 is controlled to rotate to push the activated sludge into the circulating aeration mechanism 6. When the activated sludge in the circulating aeration mechanism 6 reaches the corresponding volume, the arc-shaped sealing plate 7026 opens, discharging the activated sludge to the outside of the equipment, thus improving the activated sludge recycling effect and recovery efficiency of the integrated wastewater purification and recycling equipment.

[0057] Existing activated sludge processes typically involve separate primary sedimentation tanks, aeration tanks, and secondary sedimentation tanks that work together to treat wastewater. In contrast, the integrated device of this invention combines pretreatment, aeration, and sedimentation into a single unit. By driving a rotating collar 3, several sets of transmission collars 4 rotate, which in turn drive the pretreatment mechanism 5, the circulating aeration mechanism 6, and the sedimentation mechanism 7 to rotate synchronously. During this rotation, the internal structures are also driven to perform corresponding wastewater treatment operations. This not only makes the process more energy-efficient and environmentally friendly but also improves the convenience of wastewater purification and recycling.

[0058] Based on the aforementioned energy-saving and environmentally friendly integrated wastewater purification and recycling equipment, this invention also proposes a working method for the integrated wastewater purification and recycling equipment. For example, the working method includes:

[0059] The wastewater is introduced into the pretreatment unit;

[0060] The rotating collar controls the pretreatment mechanism, the circulating aeration mechanism, and the sedimentation mechanism to rotate.

[0061] The pretreatment unit filters suspended pollutants in the wastewater and then introduces the filtered wastewater into the circulating aeration unit;

[0062] The inner tube of the circulating aeration mechanism rotates and drives several sets of stirring rods to disturb the wastewater through the outer air tube.

[0063] The first spiral pusher rotates in the opposite direction to the inner tube of the sludge guide, pushing the sludge accumulated at the bottom of the aeration tank out through the sludge guide chamber and sludge discharge hole on the stirring rod.

[0064] Air is precisely combined with the activated sludge in the sludge guiding chamber through the outer air guide pipe, the air guide chamber and several sets of exhaust holes;

[0065] After aeration is completed, the mixture is introduced into the sedimentation unit and allowed to stand.

[0066] The sedimentation unit recycles and recovers the settled activated sludge;

[0067] Complete the wastewater purification and recycling work.

[0068] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy-saving and environmentally friendly integrated wastewater purification and recycling device, comprising a base, characterized in that: The base is provided with a support column at its top; a rotating collar is fitted on the outer wall of the support column; several sets of transmission collars are connected to the outer wall of the rotating collar; the base is provided with a pretreatment mechanism, a circulating aeration mechanism and a sedimentation mechanism at its top; the pretreatment mechanism, the circulating aeration mechanism and the sedimentation mechanism are respectively fitted into the corresponding transmission collars; The circulating aeration mechanism includes an aeration tank that can rotate around a support column; a sludge guide inner tube is rotatably connected to the center of the bottom inner wall of the aeration tank; an air guide outer tube is sleeved on the outer wall of the sludge guide inner tube; and several sets of stirring rods are evenly distributed on the outer wall of the air guide outer tube. Each set of stirring rods is provided with a mud guiding chamber and a gas guiding chamber; the mud guiding chamber is connected to the inner mud guiding tube; the mud guiding chamber is located above the gas guiding chamber, and several sets of mud discharge holes are opened at equal intervals on the top; several sets of exhaust holes are opened at equal intervals on the top of the gas guiding chamber; a first spiral push rod that rotates in the opposite direction to the inner mud guiding tube is provided inside the inner mud guiding tube; the gap between the gas guiding chamber and the inner wall of the outer gas guiding tube and the inner mud guiding tube is connected; a gas guiding ring is movably sleeved on the top outer wall of the outer gas guiding tube.

2. The energy-saving and environmentally friendly integrated wastewater purification and recycling equipment according to claim 1, characterized in that: The base has a guide groove at its top; the guide groove has an annular cross-section and an external gear ring inside; the support column has a sliding groove on its outer wall; the support column has a lifting rod inside; the lifting rod is slidably connected to the sliding groove and is driven by a lifting collar; the support column has a drive motor at its top; the output end of the drive motor extends into the support column and is driven by a first lead screw; the first lead screw is threadedly connected to the lifting rod; the lifting collar has a guide ring driven by a guide ring on its outer wall; the guide ring has an aerator at its top; and the guide ring has an internal gear ring at its bottom.

3. The energy-saving and environmentally friendly integrated wastewater purification and recycling equipment according to claim 1, characterized in that: The pretreatment mechanism includes a pretreatment tank; a sewage inlet is provided on the outer wall of the pretreatment tank; a second lead screw is rotatably connected to the center of the bottom inner wall of the pretreatment tank; a filter frame is slidably connected in the vertical direction inside the pretreatment tank; the filter frame is threadedly connected to the second lead screw; a filter screen is provided inside the filter frame; and several sets of elastic blocks are provided at the bottom edge of the filter frame.

4. The energy-saving and environmentally friendly integrated wastewater purification and recycling equipment according to claim 3, characterized in that: A rotating block is rotatably connected to the bottom center of the filter frame; the rotating block is threadedly connected to the second lead screw; several sets of scrapers are arranged in a ring array on the outer wall of the rotating block; each set of scrapers moves against the bottom of the filter screen; the bottom outer wall of the second lead screw has a threadless section, and a first gear is provided at one end extending to the bottom of the pretreatment tank; the first gear is meshed with an external gear ring.

5. The energy-saving and environmentally friendly integrated wastewater purification and recycling equipment according to claim 2, characterized in that: The bottom of the mud guide tube extends to the bottom of the aeration tank and is connected to a second gear; the second gear meshes with the outer gear ring.

6. The energy-saving and environmentally friendly integrated wastewater purification and recycling equipment according to claim 5, characterized in that: The air guide ring is connected to the gap between the inner wall of the outer air guide tube and the inner mud guide tube; the air guide ring is connected to the output end of the aerator; the top of the first spiral push rod extends to the top of the inner mud guide tube and is connected to a third gear; the third gear is meshed with the inner gear ring.

7. The energy-saving and environmentally friendly integrated wastewater purification and recycling equipment according to claim 2, characterized in that: The sedimentation mechanism includes a sedimentation tank; the bottom of the sedimentation tank is equipped with a sludge recovery component.

8. The energy-saving and environmentally friendly integrated wastewater purification and recycling equipment according to claim 7, characterized in that: The sludge recovery assembly includes a sludge recovery pipe; the sludge recovery pipe has a sludge chamber and a power chamber; the sludge chamber is connected to a circulating aeration mechanism; a recovery channel is opened at the top of the sludge chamber; a second spiral push rod is provided in the sludge chamber; an arc-shaped sealing plate is provided at the bottom of the sludge chamber; a recovery motor is provided in the power chamber; the output end of the recovery motor is connected to the second spiral push rod for transmission.

9. A method for operating an integrated wastewater purification and recycling device based on any one of claims 1-8, characterized in that: The working method includes: The wastewater is introduced into the pretreatment unit; The rotating collar controls the pretreatment mechanism, the circulating aeration mechanism, and the sedimentation mechanism to rotate; The pretreatment unit filters suspended pollutants in the wastewater and then introduces the filtered wastewater into the circulating aeration unit; The inner tube of the circulating aeration mechanism rotates and drives several sets of stirring rods to disturb the wastewater through the outer air tube. The first spiral pusher rotates in the opposite direction to the inner sludge guide tube, pushing the sludge accumulated at the bottom of the aeration tank through the sludge guide chamber and sludge discharge hole on the stirring rod. Air is precisely combined with the activated sludge in the sludge guiding chamber through the outer air guide pipe, the air guide chamber and several sets of exhaust holes; After aeration is completed, the mixture is introduced into the sedimentation unit and allowed to stand. The sedimentation unit recycles and recovers the settled activated sludge; Complete the wastewater purification and recycling work.

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