An aeration device for sewage treatment

Abstract

The present invention belongs to the technical field of sewage treatment, and in particular, to an aeration device for sewage treatment. Aiming at the problem that the existing aeration device for sewage treatment cannot adjust the aeration strategy according to the amount of sewage in the aeration tank, the following solution is proposed. It includes a tank body. Four symmetric support seats are fixedly connected to the upper side of the tank body, and a moving seat is arranged on the tank body. Two symmetric through holes are formed in the moving seat. A circular notch is formed in the moving seat, and the circular notch is located between the two through holes. A full-range moving module is arranged outside the moving seat, and an adaptive aeration module is arranged below the moving seat. The adaptive aeration module is located inside the tank body. The disclosed aeration device for sewage treatment can enable the aeration device to automatically adjust the aeration degree of the device for the sewage according to the actual amount of sewage in the tank body, so as to perform adaptive aeration on the sewage. While ensuring the effect of aeration treatment of the sewage, the energy-saving effect of the device is also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to an aeration device for sewage treatment. Background Art

[0002] The principle of aeration is to dissolve oxygen in the air into the water, or to expel unnecessary gases and volatile substances in the water into the air. The function of aeration is to stir and mix, so that the activated sludge is in a suspended state in the aeration tank, fully contact with the wastewater, and increase the dissolved oxygen concentration in the wastewater to facilitate the degradation of organic matter.

[0003] The existing aeration devices for sewage treatment usually operate at a fixed power and cannot adaptively control the device according to the amount of sewage in the aeration tank. When the sewage in the tank is less, they still operate at a high power, resulting in poor energy-saving effect. Summary of the Invention

[0004] The present invention discloses an aeration device for sewage treatment, aiming to solve the technical problem that the existing aeration devices for sewage treatment in the background art cannot adjust the aeration strategy according to the amount of sewage in the aeration tank.

[0005] An aeration device for sewage treatment proposed by the present invention includes a pool body. Four symmetric support seats are fixedly connected to the upper side of the pool body, and a moving seat is arranged on the pool body. Two symmetric through holes are formed in the moving seat, and a circular groove opening is formed in the moving seat. The circular groove opening is located between the two through holes. An all-range moving module is arranged outside the moving seat, and an adaptive aeration module is arranged below the moving seat. The adaptive aeration module is located inside the pool body;

[0006] The adaptive aeration module includes a movable cylinder. An air bag is arranged outside the movable cylinder, and three built-in paddle blades are arranged below the movable cylinder at equal circumferential intervals. Extension paddle blades are slidably connected to the outside of the built-in paddle blades;

[0007] The all-range moving module includes two symmetric long rods, and moving platforms are slidably connected to both long rods.

[0008] By providing the pool body, support seats, moving seat, adaptive aeration module, all-range moving module, circular groove opening and through holes, the device can use the adaptive aeration module to enable the aeration device to automatically adjust the aeration degree of the device for the sewage according to the actual amount of sewage in the pool body, so as to perform adaptive aeration on the sewage. While ensuring the effect of aeration treatment of the sewage, the energy-saving effect of the device is also improved.

[0009] In a preferred embodiment, a separation frame is fixedly connected to the bottom of the movable seat. A first motor is fixedly connected to the inner wall of the separation frame. The output end of the first motor is connected to a threaded rod through a coupling. A circular opening is formed in the upper side of the movable cylinder. The inner wall of the circular opening is rotationally connected to the outside of the threaded rod through an external thread. A columnar groove is formed in the upper side of the movable cylinder. A guiding rod is slidably connected in the columnar groove. The upper side of the guiding rod is fixedly connected to the bottom of the separation frame; the outside of the movable cylinder is slidably connected to a movable ring. The outside of the movable ring is movably connected to the outside of the airbag. Three reserved grooves are formed in the movable ring at equal circumferential intervals. Connecting rods are slidably connected in the reserved grooves respectively. A water isolation frame is fixedly connected to the bottom of the movable cylinder. A second motor is fixedly connected to the inner wall of the top of the water isolation frame. The output end of the second motor is connected to a rotating shaft through a coupling; a connecting seat is fixedly connected to the bottom of the rotating shaft. Three fixing platforms are fixedly connected to the outside of the connecting seat at equal circumferential intervals. The side of the fixing platform on the same side is fixedly connected to the opposite side of the built-in paddle. Grooves are formed in the sides of the built-in paddles away from the fixing platforms. Springs are fixedly connected to the inner walls of the sides of the grooves close to the fixing platforms. The ends of the springs away from the fixing platforms are fixedly connected to the inner walls of the extended paddles on the same side; the outside of the three connecting rods is slidably connected to the same rotating ring one. The inner wall of the rotating ring one is movably connected to the outside of the movable cylinder. Three convex platforms are fixedly connected to the outside of the rotating ring one at equal circumferential intervals. Guide rollers one are movably connected to the convex platforms respectively. The bottoms of the three connecting rods are fixedly connected to the upper side of the connecting seat; the outside of the three connecting rods is slidably connected to the same rotating ring two. The rotating ring two is located below the rotating ring one. Three support rods are fixedly connected to the outside of the rotating ring two at equal circumferential intervals. One pulling rope is arranged outside the guide roller one and the guide roller two on the same side. One ends of the three pulling ropes are fixedly connected to the outside of the extended paddle on the same side respectively, and the other ends are fixedly connected to the bottom of the movable ring.

[0010] By providing an adaptive aeration module, the adaptive aeration module uses the airbag and the pulling rope to enable the device to automatically control the paddle area formed by the built-in paddle and the extended paddle according to the height of the sewage liquid level in the pool, so as to complete the aeration treatment of the sewage in a timely and effective manner, greatly improving the aeration efficiency of the sewage, reducing the workload of personnel, realizing automation, and improving the applicability of the equipment.

[0011] In a preferred embodiment, circular openings are formed in all four of the support seats. The inner walls of the two circular openings on the same side are fixedly connected to the outer part of the long rod on the same side. Moreover, the same lead screw is movably connected to the opposite sides of the two moving platforms. Two symmetrical guide rods are arranged on the outer part of the lead screw. The two guide rods are fixedly connected to the opposite sides of the two moving platforms respectively. The outer part of the lead screw is rotationally connected to the inner wall of the circular groove opening through external threads. The inner walls of the two through holes are slidably connected to the outer parts of the two guide rods respectively. And an external gear ring is fixedly connected to the outer part of the lead screw. On the upper side of the moving platform on the same side as the external gear ring, a motor four is connected by bolts. The output end of the motor four is connected to a gear two through a coupling. The gear two meshes with the external gear ring. And a motor three is fixedly connected to the moving platform far away from the motor four. A narrow groove is formed in the moving platform on the same side as the motor three. A gear one is arranged in the narrow groove. The output end of the motor three is connected to the gear one through a coupling. A cutting groove is formed in the outer part of the long rod on the same side as the gear one. A rack is fixedly connected in the cutting groove. And the rack meshes with the gear one.

[0012] By providing a full-range moving module, the full-range moving module uses the long rod and the lead screw to enable the moving seat to achieve full-range movement on the pool body. Thus, the moving seat can drive the adaptive aeration module to perform uniform aeration treatment on the sewage in the pool body, improving the aeration coverage rate, shortening the aeration time, and enhancing the aeration effect.

[0013] As can be seen from the above, an aeration device for sewage treatment provided by the present invention can enable the aeration device to automatically adjust the aeration degree of the sewage according to the actual amount of sewage in the pool body, thereby achieving adaptive aeration for the sewage. While ensuring the effect of aeration treatment for the sewage, it also improves the energy-saving effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of an aeration device for sewage treatment proposed by the present invention;

[0015] Figure 2 is a schematic sectional view of an aeration device for sewage treatment proposed by the present invention;

[0016] Figure 3 is a schematic diagram of the structure of the adaptive aeration module of an aeration device for sewage treatment proposed by the present invention;

[0017] Figure 4 is a schematic diagram of the structure of the movable cylinder of an aeration device for sewage treatment proposed by the present invention;

[0018] Figure 5 is a schematic diagram of the structure of the water isolation frame of an aeration device for sewage treatment proposed by the present invention;

[0019] Figure 6Schematic diagram of the built-in paddle structure of an aeration device for sewage treatment proposed by the present invention;

[0020] Figure 7 Schematic diagram of the full-range movement module structure of an aeration device for sewage treatment proposed by the present invention;

[0021] Figure 8 Schematic diagram of the mobile platform structure of an aeration device for sewage treatment proposed by the present invention.

[0022] In the figure: 1, pool body; 2, support base; 3, moving base; 4, adaptive aeration module; 401, isolation frame; 402, threaded rod; 403, movable cylinder; 404, motor 1; 405, columnar groove; 406, guiding rod; 407, movable ring; 408, airbag; 409, reserved groove; 410, water isolation frame; 411, connecting rod; 412, rotating ring 1; 413, guiding roller 1; 414, rotating ring 2; 415, support rod; 416, guiding roller 2; 417, pulling rope; 418, motor 2; 419, rotating shaft; 420, connecting seat; 421, fixed platform; 422, built-in paddle; 423, extended paddle; 424, groove; 425, spring; 5, full-range movement module; 501, long rod; 502, mobile platform; 503, lead screw; 504, guiding rod; 505, narrow groove; 506, rack; 507, gear 1; 508, motor 3; 509, motor 4; 510, gear 2; 511, external toothed ring; 6, circular notch; 7, through hole. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0024] An aeration device for sewage treatment disclosed by the present invention is mainly applied to scenarios where the existing aeration devices for sewage treatment cannot adjust the aeration strategy according to the amount of sewage in the aeration tank.

[0025] Refer to Figure 1-8 , an aeration device for sewage treatment, including a pool body 1, four symmetric support bases 2 are bolted to the upper side of the pool body 1, and a moving base 3 is arranged on the pool body 1. Two symmetric through holes 7 are opened on the moving base 3, a circular notch 6 is opened on the moving base 3, the circular notch 6 is located between the two through holes 7, a full-range movement module 5 is arranged outside the moving base 3, and an adaptive aeration module 4 is arranged below the moving base 3. The adaptive aeration module 4 is located inside the pool body 1;

[0026] The adaptive aeration module 4 includes a movable cylinder 403. An airbag 408 is arranged outside the movable cylinder 403, and three built-in blades 422 evenly distributed at equal intervals in the circumferential direction are arranged below the movable cylinder 403. An extended blade 423 is slidably connected to the outside of each of the built-in blades 422;

[0027] The full-range movement module 5 includes two symmetric long rods 501, and a moving platform 502 is slidably connected to each of the two long rods 501.

[0028] Specifically, during the process of aeration treatment of sewage in the pool body 1, the adaptive aeration module 4 is used to insert the movable cylinder 403 into the sewage. Under the action of the buoyancy of the sewage, the airbag 408 drives the extended blade 423 to unfold on the built-in blade 422, so that the extended blade 423 and the built-in blade 422 can stir the sewage within a certain range and the activated sludge at the bottom of the pool body 1. While the adaptive aeration module 4 is aerating, the full-range movement module 5 is used to drive the moving seat 3 to move, so that the moving seat 3 can drive the adaptive aeration module 4 to aerate the sewage at different positions in the pool body 1; the device uses the adaptive aeration module 4 to enable the aeration equipment to automatically adjust the aeration degree of the equipment for the sewage according to the actual amount of sewage in the pool body 1, so as to perform adaptive aeration on the sewage. While ensuring the effect of aeration treatment of the sewage, the energy-saving effect of the equipment is also improved.

[0029] Refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6, in a preferred embodiment, a separation frame 401 is connected to the bottom of the moving seat 3 by bolts. A first motor 404 is connected to the inner wall of the separation frame 401 by bolts. The output end of the first motor 404 is connected to a threaded rod 402 by a coupling. A circular opening is formed in the upper side of the movable cylinder 403, and the inner wall of the circular opening is rotationally connected to the outside of the threaded rod 402 through an external thread. A columnar groove 405 is formed in the upper side of the movable cylinder 403, and a guiding rod 406 is slidably connected in the columnar groove 405. The upper side of the guiding rod 406 is connected to the bottom of the separation frame 401 by bolts; an activity ring 407 is slidably connected to the outside of the movable cylinder 403. The outside of the activity ring 407 is rotationally connected to the outside of the airbag 408 through a bearing. Three circumferentially equally spaced reserved grooves 409 are formed in the activity ring 407, and connecting rods 411 are slidably connected in the reserved grooves 409. A water isolation frame 410 is connected to the bottom of the movable cylinder 403 by bolts. A second motor 418 is connected to the top inner wall of the water isolation frame 410 by bolts. The output end of the second motor 418 is connected to a rotating shaft 419 by a coupling; a connecting seat 420 is connected to the bottom of the rotating shaft 419 by bolts. Three circumferentially equally spaced fixed platforms 421 are connected to the outside of the connecting seat 420 by bolts. The side of the fixed platform 421 on the same side is connected to the opposite side of the built-in paddle 422 by bolts. Grooves 424 are formed in the sides of the built-in paddle 422 away from the fixed platforms 421. Springs 425 are connected to the inner walls of the sides of the grooves 424 close to the fixed platforms 421 by bolts. The ends of the springs 425 away from the fixed platforms 421 are connected to the inner walls of the extended paddles 423 on the same side by bolts; a first rotating ring 412 is slidably connected to the outside of the three connecting rods 411. The inner wall of the first rotating ring 412 is rotationally connected to the outside of the movable cylinder 403 through a bearing. Three circumferentially equally spaced convex platforms are connected to the outside of the first rotating ring 412 by bolts. Guide rollers 413 are rotationally connected to the convex platforms through bearings. The bottoms of the three connecting rods 411 are connected to the upper side of the connecting seat 420 by bolts; a second rotating ring 414 is slidably connected to the outside of the three connecting rods 411. The second rotating ring 414 is located below the first rotating ring 412. Three circumferentially equally spaced support rods 415 are connected to the outside of the second rotating ring 414 by bolts. A same pulling rope 417 is arranged outside the guide roller 413 and the guide roller 416 on the same side. One ends of the three pulling ropes 417 are connected to the outside of the extended paddles 423 on the same side by bolts, and the other ends are connected to the bottom of the activity ring 407 by bolts.

[0030] Specifically, during the aeration treatment, the first motor 404 is started. The first motor 404 drives the threaded rod 402 to rotate, so that the movable cylinder 403 descends and enters the sewage. After the airbag 408 contacts the sewage, under the buoyancy of the sewage, the airbag 408 always floats on the water surface while the movable cylinder 403 continues to descend. As a result, the movable ring 407 connected to the airbag 408 pulls the pulling rope 417, causing the pulling rope 417 guided by the first guide roller 413 and the second guide roller 416 to drag the extension blade 423 to slide away from the built-in blade 422 against the elastic force of the spring 425 on the built-in blade 422, thereby increasing the overall length formed by the built-in blade 422 and the extension blade 423. Then, the second motor 418 is started. The second motor 418 drives the connecting seat 420 to rotate, so that the built-in blade 422 and the extension blade 423 stir the sewage during rotation and roll up the activated sludge deposited at the bottom of the pool body 1 from the bottom and mix it with the sewage.

[0031] In a specific application scenario, the adaptive aeration module 4 is mainly applicable to the adaptive aeration link in the adaptive aeration process. That is, the adaptive aeration module 4 uses the airbag 408 and the pulling rope 417 to enable the device to automatically control the blade area formed by the built-in blade 422 and the extension blade 423 through the sewage liquid level height in the pool body 1, so as to complete the aeration treatment of the sewage in a timely and effective manner, greatly improving the aeration efficiency of the sewage, reducing the workload of personnel, realizing automation, and improving the applicability of the equipment.

[0032] Refer to Figure 7 and Figure 8, in a preferred embodiment, circular openings are formed in all four supporting seats 2. The inner walls of the two circular openings on the same side are respectively connected to the outer sides of the long rods 501 on the same side through bolts. The opposite sides of the two moving platforms 502 are rotatably connected to the same lead screw 503 through bearings. Two symmetrical guide rods 504 are arranged on the outer side of the lead screw 503. The opposite sides of the two guide rods 504 and the two moving platforms 502 are respectively connected through bolts. The outer side of the lead screw 503 is rotationally connected to the inner wall of the circular groove opening 6 through external threads. The inner walls of the two through holes 7 are respectively slidably connected to the outer sides of the two guide rods 504. An external toothed ring 511 is connected to the outer side of the lead screw 503 through bolts. On the upper side of the moving platform 502 on the same side as the external toothed ring 511, a fourth motor 509 is connected through bolts. The output end of the fourth motor 509 is connected to a second gear 510 through a coupling. The second gear 510 meshes with the external toothed ring 511. A third motor 508 is connected through bolts to the moving platform 502 far from the fourth motor 509. A narrow groove 505 is formed in the moving platform 502 on the same side as the third motor 508. A first gear 507 is arranged in the narrow groove 505. The output end of the third motor 508 is connected to the first gear 507 through a coupling. A cutting groove is formed in the outer side of the long rod 501 on the same side as the first gear 507. A rack 506 is connected to the cutting groove through bolts. The rack 506 meshes with the first gear 507.

[0033] Specifically, while the adaptive aeration module 4 is performing aeration treatment, the third motor 508 is started. The third motor 508 drives the first gear 507 meshing with the rack 506 to rotate, so that the moving platform 502 can drive the moving seat 3 to move in the long axis direction on the pool body 1. The fourth motor 509 is started. The fourth motor 509 drives the external toothed ring 511 meshing with the second gear 510 to rotate, so that the lead screw 503 drives the moving seat 3 to move on the short axis of the pool body 1, so that the adaptive aeration module 4 on the moving seat 3 can move to various positions of the sewage in the pool body 1.

[0034] In a specific application scenario, the full-range moving module 5 is mainly applicable to the full-range moving link in the full-range moving process, that is, the full-range moving module 5 uses the long rod 501 and the lead screw 503 to enable the moving seat 3 to achieve full-range movement on the pool body 1, so that the moving seat 3 can drive the adaptive aeration module 4 to perform uniform aeration treatment on the sewage in the pool body 1, improving the aeration coverage rate, shortening the aeration time, and improving the aeration effect.

[0035] Working principle: When carrying out aeration treatment, start the first motor 404. The first motor 404 drives the threaded rod 402 to rotate, so that the movable cylinder 403 descends and enters the sewage. After the airbag 408 contacts the sewage, under the buoyancy of the sewage, the airbag 408 always floats on the water surface while the movable cylinder 403 continues to descend. As a result, the movable ring 407 connected to the airbag 408 pulls the pulling rope 417, causing the pulling rope 417 guided by the first guide roller 413 and the second guide roller 416 to drag the extended blade 423 to slide away from the built-in blade 422 on the built-in blade 422 against the elastic force of the spring 425, thereby increasing the overall length formed by the built-in blade 422 and the extended blade 423. Start the second motor 418. The second motor 418 drives the connecting seat 420 to rotate, so that the built-in blade 422 and the extended blade 423 stir the sewage during rotation and roll up the activated sludge deposited at the bottom of the pool body 1 from the bottom and mix it with the sewage. While the adaptive aeration module 4 is carrying out aeration treatment, start the third motor 508. The third motor 508 drives the first gear 507 engaged with the rack 506 to rotate, so that the moving platform 502 can drive the moving seat 3 to move in the long-axis direction of the pool body 1. Start the fourth motor 509. The fourth motor 509 drives the outer tooth ring 511 engaged with the second gear 510 to rotate, so that the lead screw 503 drives the moving seat 3 to move on the short axis of the pool body 1, so that the adaptive aeration module 4 on the moving seat 3 can move to various positions of the sewage in the pool body 1.

[0036] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An aeration device for sewage treatment, comprising a pool body. Four symmetric support seats are fixedly connected to the upper side of the pool body. A moving seat is arranged on the pool body. Two symmetric through holes are formed in the moving seat. A circular notch is formed in the moving seat, and the circular notch is located between the two through holes. A full-range moving module is arranged outside the moving seat, and an adaptive aeration module located inside the pool body is arranged below the moving seat; The adaptive aeration module includes a movable cylinder. An air bag is arranged outside the movable cylinder, and three built-in blades evenly distributed in a circumferential manner are arranged below the movable cylinder. Extended blades are all slidably connected to the outside of the built-in blades; The full-range moving module includes two symmetric long rods. Moving platforms are slidably connected to both of the two long rods; A partition frame is fixedly connected to the bottom of the moving seat. A motor I is fixedly connected to the inner wall of the partition frame. The output end of the motor I is connected to a threaded rod through a coupling. A circular opening is formed in the upper side of the movable cylinder, and the inner wall of the circular opening is rotationally connected to the outside of the threaded rod through an external thread. A columnar groove is formed in the upper side of the movable cylinder, and a guiding rod is slidably connected in the columnar groove. The upper side of the guiding rod is fixedly connected to the bottom of the partition frame; A movable ring is slidably connected to the outside of the movable cylinder. The outside of the movable ring is movably connected to the outside of the air bag. Three reserved grooves evenly distributed in a circumferential manner are formed in the movable ring. Connecting rods are all slidably connected in the reserved grooves. A water isolation frame is fixedly connected to the bottom of the movable cylinder. A motor II is fixedly connected to the inner wall of the top of the water isolation frame. The output end of the motor II is connected to a rotating shaft through a coupling; A connecting seat is fixedly connected to the bottom of the rotating shaft. Three fixed platforms evenly distributed in a circumferential manner are fixedly connected to the outside of the connecting seat. The side of the fixed platform on the same side is fixedly connected to the side of the built-in blade opposite to it, and grooves are formed in the sides of the built-in blades away from the fixed platforms. Springs are fixedly connected to the inner walls of the sides of the grooves close to the fixed platforms. The ends of the springs away from the fixed platforms are all fixedly connected to the inner walls of the extended blades on the same side; A rotating ring I is slidably connected to the outside of the three connecting rods. The inner wall of the rotating ring I is movably connected to the outside of the movable cylinder. Three convex platforms evenly distributed in a circumferential manner are fixedly connected to the outside of the rotating ring I. Guide rollers I are all movably connected to the convex platforms. The bottoms of the three connecting rods are all fixedly connected to the upper side of the connecting seat; A rotating ring II is slidably connected to the outside of the three connecting rods. The rotating ring II is located below the rotating ring I. Three support rods evenly distributed in a circumferential manner are fixedly connected to the outside of the rotating ring II. Guide rollers II are arranged on the outside of the support rods, and a same pulling rope is arranged on the outside of the guide roller I and the guide roller II on the same side. One ends of the three pulling ropes are all fixedly connected to the outside of the extended blades on the same side, and the other ends are all fixedly connected to the bottom of the movable ring.

2. The aeration device for sewage treatment according to claim 1, wherein, Circular openings are formed in all of the four support seats. The inner walls of the two circular openings on the same side are all fixedly connected to the outside of the long rod on the same side. A same lead screw is movably connected to the opposite sides of the two moving platforms. Two symmetric guide rods are arranged on the outside of the lead screw.

3. The aeration device for sewage treatment according to claim 2, wherein, Both sides of the two guiding rods opposite to the two moving platforms are fixedly connected. The outer part of the lead screw is rotationally connected to the inner wall of the circular notch through external threads. The inner walls of the two through holes are respectively slidably connected to the outer parts of the two guiding rods. An external gear ring is fixedly connected to the outer part of the lead screw.

4. The aeration device for sewage treatment according to claim 3, wherein On the upper side of the moving platform on the same side as the external gear ring, a fourth motor is connected by bolts. The output end of the fourth motor is connected to a second gear through a coupling. The second gear meshes with the external gear ring, and a third motor is fixedly connected to the moving platform far from the fourth motor.

5. The aeration device for sewage treatment according to claim 2, wherein A narrow groove is formed in the moving platform on the same side as the third motor. A first gear is arranged in the narrow groove. The output end of the third motor is connected to the first gear through a coupling. A cutting groove is formed in the outer part of the long rod on the same side as the first gear. A rack is fixedly connected in the cutting groove, and the rack meshes with the first gear.

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