Sludge double-reflux reaction device

Abstract

The utility model discloses a sludge double-reflux reaction device, which relates to the technical field of sewage treatment and comprises an anaerobic tank and an auxiliary component, an anoxic tank is arranged on the right side of the anaerobic tank, the bottom of an aerobic tank is connected with a secondary sedimentation tank through a pipeline I, and the auxiliary component is arranged above the right side of a concentration tank. The output end of the servo motor is connected with a two-way lead screw, the exterior of the first bevel gear is connected with a second bevel gear, the exterior of the two-way lead screw is connected with a lead screw nut, a spring is arranged at the top end of the interior of the supporting seat, and a supporting plate is arranged at the bottom of the sliding rod. According to the sludge double-reflux reaction device, sludge enters the anaerobic tank from the concentration tank through the pipeline V and the delivery pump, sewage and sludge in the anaerobic tank are fully mixed through the stirrer, and then the mixed sludge enters the anoxic tank to provide an internal carbon source for denitrification reaction of the anoxic tank, so that the device realizes stable deep denitrification under the condition of no external carbon source; the operation cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely is a sludge double reflux reaction device. BACKGROUND

[0002] Sludge double reflux is a technical means in sewage treatment, and its purpose is to solve the contradiction between denitrification efficiency and carbon source demand, and to optimize various reaction processes in the sewage treatment process through special sludge reflux mode. In some processes, the sludge double reflux technology can improve the water treatment efficiency by 50% on average. It can make various substances in sewage contact more fully with microbial reaction substances through reasonable sludge reflux, thereby improving the treatment effect.

[0003] The existing device is easy to accumulate a large amount of sludge in the sedimentation tank when in use, and the sludge hardening will affect the smoothness of sludge reflux, resulting in excessive discharge of sewage and affecting the full use of organic matter resources in sludge.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a sludge double reflux reaction device is provided. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a sludge double reflux reaction device to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a sludge double reflux reaction device, comprising an anaerobic tank and an auxiliary assembly, the right side of the anaerobic tank is provided with an anoxic tank, and the right side of the anoxic tank is provided with an aerobic tank, the bottom of the aerobic tank is connected with a secondary sedimentation tank through a pipeline one, and the bottom of the secondary sedimentation tank is connected with a concentration tank through a pipeline two, the auxiliary assembly is arranged above the right side of the concentration tank, and the auxiliary assembly comprises a servo motor, a bidirectional screw rod, a bevel gear one, a bevel gear two, a stirring paddle, a screw rod nut, a support seat, a spring, a sliding rod, a support plate, a transmission shaft, a roller and a breaking cone, the output end of the servo motor is connected with the bidirectional screw rod, and the outside of the bidirectional screw rod is provided with the bevel gear one, the outside of the bevel gear one is connected with the bevel gear two, and the middle part of the bevel gear one is provided with the stirring paddle, the outside of the bidirectional screw rod is connected with the screw rod nut, and the bottom of the screw rod nut is provided with the support seat, the inside top of the support seat is provided with the spring, and the bottom of the spring is provided with the sliding rod, the bottom of the sliding rod is provided with the support plate, and the transmission shaft is arranged below the support plate, and the outside of the transmission shaft is provided with the roller and the breaking cone.

[0007] Further, the bottom of the anoxic tank is connected with the aerobic tank through a pipeline three, and the inside of the anoxic tank is provided with an aeration pipe, and the input end of the aeration pipe is provided with an aeration device.

[0008] Further, the left side of the anaerobic tank is connected with two sedimentation tanks through pipelines four, and the left side of the anaerobic tank is also connected with a concentration tank through a pipeline five.

[0009] Further, the pipeline two, the pipeline three, the pipeline four and the pipeline five are all installed with conveying pumps, and the anaerobic tank, the anoxic tank and the two sedimentation tanks are all provided with agitators.

[0010] Further, the double-way screw rod is rotationally connected with the concentration tank at the end far away from the servo motor, and the double-way screw rod and the stirring paddle are perpendicular to each other.

[0011] Further, the screw rod nut and the support seat are both provided with two, and the support seat is elastically connected with the sliding rod through a spring.

[0012] Further, the sliding rod is arranged at the sliding groove in the inner side of the support seat, and the sliding rod and the support plate are in an integrated structure.

[0013] Further, the transmission shaft, the roller and the breaking cone are coaxially arranged, and the setting number ratio of the roller and the breaking cone is 2:1.

[0014] The utility model provides a kind of sludge double reflux reaction device, with the following beneficial effects:

[0015] 1, the utility model servo motor is double-way screw rod, bevel gear one provides rotation force, so that bevel gear one, bevel gear two intermeshing transmission power, realize the breaking cone of horizontal opposite displacement to sludge loosening while stirring paddle is stirred to sludge, to increase the flowability of sludge, make sludge reflux smooth.

[0016] 2, the utility model sludge is by concentration tank into anaerobic tank with conveying pump by pipeline five, the sewage in anaerobic tank is fully mixed with sludge by agitator, then mixed sludge enters anoxic tank, provides internal carbon source for denitrification reaction of anoxic tank, so that device realizes stable depth denitrification in the case where no additional carbon source, saves operating cost. DRAWINGS

[0017] Fig. 1 It is the whole cross section structure schematic view of the utility model a kind of sludge double reflux reaction device;

[0018] Fig. 2 It is the concentration tank cross section structure schematic view of the utility model a kind of sludge double reflux reaction device;

[0019] Fig. 3 It is the support seat side view cross section structure schematic view of the utility model a kind of sludge double reflux reaction device.

[0020] In the figure: 1. Anaerobic tank; 2. Anoxic tank; 3. Aerobic tank; 4. Pipeline 1; 5. Secondary sedimentation tank; 6. Pipeline 2; 7. Concentration tank; 8. Pipeline 3; 9. Pipeline 4; 10. Pipeline 5; 11. Delivery pump; 12. Aeration device; 13. Aeration pipe; 14. Agitator; 15. Auxiliary components; 1501. Servo motor; 1502. Bidirectional screw; 1503. Bevel gear 1; 1504. Bevel gear 2; 1505. Stirring paddle; 1506. Screw nut; 1507. Support seat; 1508. Spring; 1509. Sliding rod; 1510. Support plate; 1511. Drive shaft; 1512. Roller; 1513. Destroying cone. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figs. 1-3 As shown, a sludge double-return reaction device includes an anaerobic tank 1 and an auxiliary component 15. The auxiliary component 15 is arranged above the right side of the thickening tank 7, and the auxiliary component 15 includes a servo motor 1501, a bidirectional screw 1502, a bevel gear 1503, a bevel gear 2 1504, a stirring paddle 1505, a screw nut 1506, a support seat 1507, a spring 1508, a slide bar 1509, a support plate 1510, a transmission shaft 1511, a roller 1512 and Destroy cone 1513, the output end of servo motor 1501 is connected to bidirectional screw 1502, and the outer sleeve of bidirectional screw 1502 is provided with bevel gear 1503, the outer portion of bevel gear 1503 is connected to bevel gear 2 1504, and the middle portion of bevel gear 1503 is penetrated by stirring paddle 1505, the outer portion of bidirectional screw 1502 is connected to screw nut 1506, and the bottom of screw nut 1506 is provided with support seat 1507, support seat 1507 The top of the inner part is provided with a spring 1508, and the bottom of the spring 1508 is provided with a slide bar 1509, the bottom of the slide bar 1509 is provided with a support plate 1510, and a transmission shaft 1511 is passed through the bottom of the support plate 1510, and the outer sleeve of the transmission shaft 1511 is provided with a roller 1512 and a breaking cone 1513, and the end of the bidirectional screw rod 1502 away from the servo motor 1501 is rotatably connected to the concentration tank 7, and the bidirectional screw rod 1502 and the stirring paddle 1505 are mutually Vertically, there are two screw nuts 1506 and two support seats 1507, and the support seat 1507 is elastically connected to the slide rod 1509 through a spring 1508. The slide rod 1509 is provided at the slide groove on the inner side of the support seat 1507, and the slide rod 1509 and the support plate 1510 are an integrated structure. The transmission shaft 1511, the roller 1512 and the destroying cone 1513 are coaxially arranged, and the ratio of the number of the roller 1512 and the destroying cone 1513 is 2:1.

[0023] The specific operation is as follows: the servo motor 1501 provides rotating force for the bidirectional screw rod 1502 and the bevel gear one 1503, so that the bevel gear one 1503 and the bevel gear two 1504 are meshed to transmit power, the destruction cone 1513 for horizontal opposite displacement is used to loosen sludge, and the stirring paddle 1505 is used to stir sludge, so that the flowability of sludge is increased, and sludge backflow is smooth.

[0024] As shown in Fig. 1 Fig. 1, the right side of the anaerobic tank 1 is provided with the anoxic tank 2, the right side of the anoxic tank 2 is provided with the aerobic tank 3, the bottom of the aerobic tank 3 is connected with the secondary sedimentation tank 5 through the pipeline one 4, the bottom of the secondary sedimentation tank 5 is connected with the thickening tank 7 through the pipeline two 6, the bottom of the anoxic tank 2 is connected with the aerobic tank 3 through the pipeline three 8, the inside of the anoxic tank 2 is provided with the aeration pipe 13, the input end of the aeration pipe 13 is provided with the aeration device 12, the left side of the anaerobic tank 1 is connected with the secondary sedimentation tank 5 through the pipeline four 9, and the left side of the anaerobic tank 1 is also connected with the thickening tank 7 through the pipeline five 10, the pipeline two 6, the pipeline three 8, the pipeline four 9 and the pipeline five 10 are all installed with the conveying pump 11, and the anaerobic tank 1, the anoxic tank 2 and the secondary sedimentation tank 5 are all provided with the stirrer 14.

[0025] The specific operation is as follows: sludge enters the anaerobic tank 1 from the thickening tank 7 through the pipeline five 10 and the conveying pump 11, the sewage and the sludge in the anaerobic tank 1 are fully mixed through the stirrer 14, then the mixed sludge enters the anoxic tank 2, and the internal carbon source is provided for the denitrification reaction of the anoxic tank 2, so that stable deep denitrification is realized in the device without external carbon source, and the operation cost is saved.

[0026] In summary, the sludge double backflow reaction device is used, first, the anaerobic tank 1, the anoxic tank 2, the aerobic tank 3, the secondary sedimentation tank 5 and the thickening tank 7 are sequentially communicated, the first stage sludge backflow is from the sludge backflow of the secondary sedimentation tank 5, that is, the sludge enters the anaerobic tank 1 from the secondary sedimentation tank 5 through the pipeline four 9 and the conveying pump 11, and the second stage sludge backflow is from the sludge backflow of the thickening tank 7, that is, the sludge enters the anaerobic tank 1 from the thickening tank 7 through the pipeline five 10 and the conveying pump 11.

[0027] The sewage to be treated enters the anaerobic tank 1 and is mixed with the activated sludge backflowing into the anaerobic tank 1 under the action of the stirrer 14 to perform the phosphorus release reaction, then the mixed sludge enters the aerobic tank 3, the nitrifying bacteria in the sludge perform the nitrification reaction through the dissolved oxygen provided by the aeration device 12 and the aeration pipe 13, finally the effluent of the anaerobic tank 1 and the nitrified liquid in the aerobic tank 3 enter the anoxic tank 2 to perform the denitrification denitrification reaction by using the carbon source in the water, so that stable deep denitrification is realized in the device without external carbon source, and the operation cost is saved.

[0028] When the sludge in the concentration tank 7 is concentrated and hardened, the servo motor 1501 is opened, the bidirectional screw rod 1502 is driven to rotate by the servo motor 1501, the power is transmitted by the meshing of the bevel gear one 1503 and the bevel gear two 1504 to make the bidirectional screw rod 1502 and the stirring paddle 1505 rotate synchronously, the support seat 1507 is displaced horizontally along the bidirectional screw rod 1502 outside along the screw nut 1506 in the opposite direction or the same direction, the roller 1512 can roll along the bottom of the concentration tank 7 due to the elastic force of the spring 1508, the rotating force is provided for the transmission shaft 1511 to make the breaking cone 1513 have a poking effect on the hardened sludge, the middle sludge is stirred by the stirring paddle 1505, the flowability of the sludge is increased, and the sludge backflow is smooth.

[0029] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A sludge double reflux reactor device comprising an anaerobic tank (1) and an auxiliary assembly (15), characterized in that, The right side of the anaerobic tank (1) is provided with an anoxic tank (2), and the right side of the anoxic tank (2) is provided with an aerobic tank (3), the bottom of the aerobic tank (3) is connected with a secondary sedimentation tank (5) through pipeline one (4), and the bottom of the secondary sedimentation tank (5) is connected with a concentration tank (7) through pipeline two (6), the auxiliary assembly (15) is arranged above the right side of the concentration tank (7), and the auxiliary assembly (15) comprises a servo motor (1501), a bidirectional screw rod (1502), a bevel gear one (1503), a bevel gear two (1504), a stirring paddle (1505), a screw rod nut (1506), a support seat (1507), a spring (1508), a sliding rod (1509), a support plate (1510), a transmission shaft (1511), a roller (1512) and a destruction cone (1513), the output end of the servo motor (1501) is connected with the bidirectional screw rod (1502), and the outside of the bidirectional screw rod (1502) is provided with the bevel gear one (1503), the outside of the bevel gear one (1503) is connected with the bevel gear two (1504), and the middle part of the bevel gear one (1503) is provided with the stirring paddle (1505), the outside of the bidirectional screw rod (1502) is connected with the screw rod nut (1506), and the bottom of the screw rod nut (1506) is provided with the support seat (1507), the inside top of the support seat (1507) is provided with the spring (1508), and the bottom of the spring (1508) is provided with the sliding rod (1509), the bottom of the sliding rod (1509) is provided with the support plate (1510), and the transmission shaft (1511) is arranged below the support plate (1510), the outside of the transmission shaft (1511) is provided with the roller (1512) and the destruction cone (1513).

2. The sludge double reflux reaction device according to claim 1, characterized in that, The bottom of the anoxic tank (2) is connected with the aerobic tank (3) through pipeline three (8), and the inside of the anoxic tank (2) is provided with an aeration pipe (13), and the input end of the aeration pipe (13) is provided with an aeration device (12).

3. The sludge double reflux reaction device according to claim 2, characterized in that, The bottom left side of the anaerobic tank (1) is connected with the secondary sedimentation tank (5) through pipeline four (9), and the bottom left side of the anaerobic tank (1) is also connected with the concentration tank (7) through pipeline five (10).

4. The sludge double reflux reaction device according to claim 3, characterized in that, The pipeline two (6), the pipeline three (8), the pipeline four (9) and the pipeline five (10) are all provided with a conveying pump (11), and the anaerobic tank (1), the anoxic tank (2) and the secondary sedimentation tank (5) are provided with a stirrer (14).

5. The sludge double reflux reaction device according to claim 1, characterized in that, The end of the bidirectional screw rod (1502) away from the servo motor (1501) is rotatably connected with the concentration tank (7), and the bidirectional screw rod (1502) and the stirring paddle (1505) are perpendicular to each other.

6. The sludge double reflux reaction device according to claim 1, characterized in that, The screw rod nut (1506) and the support seat (1507) are provided with two respectively, and the support seat (1507) is elastically connected with the sliding rod (1509) through the spring (1508).

7. The sludge double reflux reaction device according to claim 1, characterized in that, The sliding groove of the inside of the support seat (1507) is provided with the sliding rod (1509), and the sliding rod (1509) and the support plate (1510) are in an integrated structure.

8. The sludge double reflux reaction device according to claim 1, characterized in that, The transmission shaft (1511), the roller (1512) and the breaking cone (1513) are coaxially arranged, and the number ratio of the roller (1512) and the breaking cone (1513) is 2:1.

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