Industrial wastewater denitrification and phosphorus removal reaction stirring device

Abstract

The utility model discloses industrial wastewater denitrification and phosphorus removal reaction stirring device belongs to industrial wastewater treatment equipment technical field, including rear fixed frame, main motor, secondary motor, stirring mechanism and anti -blocking mechanism, and stirring mechanism includes the universal stirring rod of the drive of main motor through lower transmission, side transmission and outer rotation wheel, and the rotating shaft of the drive of secondary motor, and then drive bottom agitating piece, bottom agitating ring and another group of universal stirring rod rotation, and anti -blocking mechanism includes the main connecting rod and outer filter screen of fixed in front connecting frame, and the inner filter screen of through vice connecting rod and lower connecting frame connection and follow lower rotation. The utility model discloses multiple stirring structure of double motor drive, eliminates the stirring dead angle and has protected biological flora, through the double -layer filter screen of dynamic static combination, effectively prevents the impurity block, guarantees the stability of equipment operation.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial wastewater treatment equipment, and in particular to a reaction stirring device for denitrification and phosphorus removal of industrial wastewater. Background Technology

[0002] In the field of industrial wastewater treatment, nitrogen and phosphorus are the main pollutants that cause eutrophication of water bodies and must be strictly removed. Biological nitrogen and phosphorus removal processes are one of the most effective methods currently in use. This process relies on the metabolic activities of specific microorganisms under different environments. In these biological reactors, especially in square and rectangular reactors, it is crucial to install a stirring device to ensure that the microorganisms are in full contact with the pollutants in the wastewater, prevent the sedimentation of activated sludge, and maintain the uniform mixing state required for the reaction.

[0003] However, existing mixing devices still have shortcomings in practical applications. On the one hand, many traditional agitators, such as side-entry and top-entry propeller agitators, create dead zones in the corners and edges of square reaction tanks, leading to sludge deposition and uneven wastewater mixing. This directly reduces the efficiency of the biochemical reaction for nitrogen and phosphorus removal. On the other hand, some agitators use high-speed rotation to overcome the problem of uneven mixing, but this generates excessive shear force, which can damage the floc structure of activated sludge bacteria flocs that play a key role in biological nitrogen and phosphorus removal, affecting the activity of microorganisms and their subsequent settling performance. In addition, industrial wastewater contains solid sediments, suspended solids, and fibrous impurities. During the mixing process, these impurities can entangle and block the rotating shaft and transmission components of the agitator, increasing the operating load of the equipment and forcing frequent shutdowns for cleaning and maintenance, thus affecting the continuity and stability of the entire wastewater treatment system.

[0004] Therefore, this utility model proposes an industrial wastewater denitrification and phosphorus removal reaction stirring device to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems existing in the existing industrial wastewater denitrification and phosphorus removal reaction stirring device, such as the easy formation of dead stirring corners in square reaction tanks, low stirring efficiency, easy disruption of biological community balance by high-speed stirring, and easy clogging of rotating parts by solid sediments in wastewater, this utility model aims to provide an industrial wastewater denitrification and phosphorus removal reaction stirring device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides an industrial wastewater denitrification and phosphorus removal reaction stirring device, including: a rear fixed frame, a stirring mechanism, an anti-clogging mechanism, a main motor, and a secondary motor; as well as a rotating shaft, a bottom stirring plate, a lower connecting frame, a universal stirring rod, a lower transmission wheel, a side transmission wheel, an outer rotating wheel, a universal stirring rod, a front connecting frame, a main connecting rod, an outer filter screen, an inner filter screen, and a secondary connecting rod.

[0007] The stirring mechanism and the anti-blocking mechanism form a composite structure that works in synergy.

[0008] Furthermore, the main motor and the secondary motor are mounted on the rear fixed frame, the front connecting frame is fixedly connected to the rear fixed frame, the main connecting rod is fixedly connected to the bottom of the front connecting frame, the outer filter screen is fixed to the main connecting rod to form a static filter section, the inner filter screen is fixedly connected to the bottom of the lower connecting frame through the secondary connecting rod and rotates together with the lower connecting frame to form a dynamic filter section, the lower connecting frame is fixed to the rotating shaft, the rotating shaft is driven by the secondary motor, the lower transmission wheel is driven by the main motor and drives the universal stirring rod through the side transmission wheel and the outer rotating wheel, and the combination is achieved by dual motors driving multiple sets of stirring components and a dynamic and static double-layer filter screen.

[0009] Preferably, the stirring mechanism further includes a bottom stirring ring, which is fixed to the rotating shaft and located below the bottom stirring plate.

[0010] Preferably, the stirring mechanism further includes a lower connecting frame, a lower connecting column, and a lower connecting plate. The lower connecting frame is connected to the output end of the main motor, the lower connecting column is connected to the lower connecting frame, and the lower connecting plate is connected to the lower connecting column. The lower connecting plate is used to drive the lower transmission wheel to rotate.

[0011] Preferably, the inner wall of the lower drive wheel is connected to the outer wall of the rotating shaft using a bearing, and the lower drive wheel is disposed on the upper side of the lower connecting frame but is not fixedly connected to the lower connecting frame.

[0012] Preferably, the bottom stirring plate has a strip-shaped, encircling design.

[0013] Preferably, the anti-blocking mechanism further includes a connecting frame reinforcing rib, which is connected between the rear fixing frame and the front connecting frame for reinforcement.

[0014] Preferably, the anti-clogging mechanism further includes a front connecting block, an inner connecting section, and a rotating shaft filter. The front connecting block is fixedly connected to the front side of the front connecting frame, the inner connecting section is fixedly connected to the inner side of the front connecting block, and the rotating shaft filter is fixedly connected to the bottom of the inner connecting section. The rotating shaft filter is located below the lower transmission wheel and is used to protect the transmission mechanism.

[0015] Preferably, the secondary motor is located at the bottom of the main motor.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by setting up multiple stirring components driven by a main motor and a secondary motor respectively, including a bottom stirring plate, a bottom stirring ring and multiple sets of universal stirring rods, realizes multi-dimensional, low-shear composite stirring. It solves the problems of stirring dead corners, uneven stirring and easy disruption of the biological community balance required for denitrification and phosphorus removal in existing stirring devices in square reaction tanks by high-speed stirring. It achieves the technical effects of increasing stirring amplitude, eliminating stirring dead corners, improving stirring efficiency, protecting the activity of biological community and improving the denitrification and phosphorus removal reaction effect.

[0018] 2. This utility model, by setting an anti-clogging mechanism, including a rotating shaft filter screen on the upper side for protecting the transmission components, and a dynamic and static combined double-layer filtration structure on the lower side consisting of a fixed outer filter screen and an inner filter screen that rotates with the stirring mechanism, solves the problem in the prior art where solid sediments and impurities in wastewater accumulate and clog the rotating shaft and transmission gears of the stirring device, leading to equipment failure. It achieves the technical effect of effectively preventing impurities from entering the transmission system, and using the rotating inner filter screen to achieve self-cleaning and prevent clogging, thus ensuring the stable operation of the device. Attached Figure Description

[0019] Figure 1 This is a perspective view of the industrial wastewater denitrification and phosphorus removal reaction stirring device proposed in this utility model;

[0020] Figure 2 This is a right view of the industrial wastewater denitrification and phosphorus removal reaction stirring device proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the stirring mechanism in the industrial wastewater denitrification and phosphorus removal reaction stirring device proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the anti-clogging mechanism in the industrial wastewater denitrification and phosphorus removal reaction stirring device proposed in this utility model.

[0023] Legend:

[0024] 1. Main motor; 2. Rear fixed frame; 3. Stirring mechanism; 31. Lower connecting frame; 32. Lower connecting column; 33. Lower connecting plate; 34. Lower transmission wheel; 35. Side transmission wheel; 36. Outer rotating wheel; 37. Universal stirring rod; 38. Secondary motor; 39. Rotating shaft; 310. Bottom stirring plate; 311. Bottom stirring ring; 312. Lower connecting frame; 313. Auxiliary stirring rod; 4. Anti-clogging mechanism; 41. Front connecting frame; 42. Connecting frame reinforcing rib; 43. Front connecting block; 44. Inner connecting frame; 45. Rotating shaft filter screen; 46. Main connecting rod; 47. Outer filter screen; 48. Inner filter screen; 49. Secondary connecting rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Example:

[0027] Please refer to Figure 1 and Figure 2 The industrial wastewater denitrification and phosphorus removal reaction stirring device includes a rear fixed frame 2, which serves as a mounting base to support the stirring mechanism 3, the anti-clogging mechanism 4, the main motor 1, and the secondary motor 38. The main motor 1 is mounted on the rear fixed frame 2, and the secondary motor 38 is mounted on the rear fixed frame 2 and located at the bottom of the main motor 1. The stirring mechanism 3 is used for efficient stirring of industrial wastewater, and the anti-clogging mechanism 4 is used to prevent solid sediments in the wastewater from accumulating in the rotating parts. The anti-clogging mechanism 4 includes a front connecting frame 41, which is fixedly connected to the rear fixed frame 3. On the front side of the fixing frame 2, the anti-blocking mechanism 4 also includes a connecting frame reinforcing rib 42. The connecting frame reinforcing rib 42 is connected between the rear fixing frame 2 and the front connecting frame 41 to reinforce the rear fixing frame 2 and the front connecting frame 41, ensuring the support and connection strength of the stirring mechanism 3. The stirring mechanism 3 includes a rotating shaft 39, which is driven to rotate by a secondary motor 38. The stirring mechanism 3 also includes a bottom stirring plate 310, which is fixed to the lower part of the rotating shaft 39. The stirring mechanism 3 also includes a lower connecting frame 312. 12 is fixed to the rotating shaft 39 and rotates with the rotating shaft 39. The stirring mechanism 3 also includes an auxiliary stirring rod 313, which is connected to the lower connecting frame 312. The stirring mechanism 3 also includes a lower transmission wheel 34, which is driven to rotate by the main motor 1. The stirring mechanism 3 also includes a side transmission wheel 35, which meshes with the lower transmission wheel 34 and rotates. The stirring mechanism 3 also includes an outer rotating wheel 36, which is driven to rotate by the side transmission wheel 35. The stirring mechanism 3 also includes a universal stirring rod 37. The stirring rod 37 is connected to the outer rotating wheel 36. The anti-clogging mechanism 4 also includes a main connecting rod 46, which is fixedly connected to the bottom of the front connecting frame 41. The anti-clogging mechanism 4 also includes an outer filter screen 47, which is fixed to the main connecting rod 46. The anti-clogging mechanism 4 also includes an inner filter screen 48, which is disposed inside the outer filter screen 47. The anti-clogging mechanism 4 also includes a secondary connecting rod 49, which is fixedly connected to the bottom of the lower connecting frame 312 through the secondary connecting rod 49 and rotates together with the lower connecting frame 312.

[0028] like Figure 3As shown, the output end of the main motor 1 is fixedly connected to the lower connecting frame 31. The lower connecting frame 31 drives the lower connecting column 32 to rotate, the lower connecting column 32 drives the lower connecting piece 33 to rotate, and the lower connecting piece 33 in turn drives the lower transmission wheel 34 to rotate. The inner wall of the lower transmission wheel 34 is rotatably connected to the outer wall of the rotating shaft 39 by bearings. The lower transmission wheel 34 is located on the upper side of the lower connecting frame 312, but the lower transmission wheel 34 is not fixedly connected to the lower connecting frame 312. The lower transmission wheel 34 meshes with the outer side of the side transmission wheel 35 and rotates. The side transmission wheel 35 drives the outer rotating wheel 36 to rotate, and the outer rotating wheel 36 drives the universal stirring rod 37 to stir the industrial wastewater.

[0029] Meanwhile, the secondary motor 38 is located at the bottom of the main motor 1. The output shaft of the secondary motor 38 is the rotating shaft 39. The secondary motor 38 drives the rotating shaft 39 to rotate, and the rotating shaft 39 drives the bottom stirring plate 310 on the lower side to rotate. The bottom stirring plate 310 has a strip-shaped wrapping shape. The rotating shaft 39 also drives the bottom stirring ring 311 to rotate. The bottom stirring ring 311 is fixed to the rotating shaft 39 and located below the bottom stirring plate 310. The rotation of the rotating shaft 39 also drives the fixedly connected lower connecting frame 312 to rotate, and the lower connecting frame 312 drives the auxiliary stirring rod 313 to rotate.

[0030] like Figure 4 As shown, the anti-clogging mechanism 4 also includes a front connecting block 43, which is fixedly connected to the front side of the front connecting frame 41. An inner connecting section 44 is fixedly connected to the inner side of the front connecting block 43, and a rotating shaft filter 45 is fixedly connected to the bottom of the inner connecting section 44. The rotating shaft filter 45 is located below the lower drive wheel 34 and is used to prevent deposits from clogging the rotation of the lower drive wheel 34.

[0031] As a preferred embodiment, please refer to Figure 3 The drive structure of the main motor 1 includes a lower connecting frame 31, which is fixedly connected to the output end of the main motor 1. The lower connecting frame 31 is also connected to a lower connecting column 32, which is connected to a lower connecting piece 33. The lower connecting piece 33 is used to drive the lower transmission wheel 34 to rotate, which is the first transmission path. At the same time, the secondary motor 38 is preferably located at the bottom of the main motor 1. The secondary motor 38 is used to drive the rotating shaft 39, which is the second transmission path. The lower transmission wheel 34 is sleeved on the outside of the rotating shaft 39. The inner wall of the lower transmission wheel 34 is rotatably connected to the outer wall of the rotating shaft 39 by bearings, ensuring that the lower transmission wheel 34 and the rotating shaft 39 can rotate independently and differentially. The lower transmission wheel 34 is located on the upper side of the lower connecting frame 312 and is not fixedly connected to the lower connecting frame 312 to avoid motion interference.

[0032] As another preferred embodiment, please refer to Figure 3The bottom stirring structure is further strengthened. In the lower part of the rotating shaft 39, in addition to the bottom stirring plate 310, a bottom stirring ring 311 is also included. The bottom stirring ring 311 is fixed to the rotating shaft 39 and located below the bottom stirring plate 310. The bottom stirring plate 310 is preferably in the shape of a strip. This combination structure rotates together with the rotating shaft 39.

[0033] As another preferred embodiment, please refer to Figure 2 and Figure 4 The overall structure of the anti-clogging mechanism 4 is reinforced and refined. The anti-clogging mechanism 4 also includes a connecting frame reinforcing rib 42, which is fixedly connected between the rear fixed frame 2 and the front connecting frame 41. The anti-clogging mechanism 4 also includes an upper filter assembly, which includes a front connecting block 43, which is fixedly connected to the front side of the front connecting frame 41. An inner connecting strip 44 is fixedly connected to the inner side of the front connecting block 43, and a rotating shaft filter screen 45 is fixedly connected to the bottom of the inner connecting strip 44. The rotating shaft filter screen 45 is specifically located below the lower drive wheel 34.

[0034] Working principle:

[0035] The stirring mechanism 3 is used for efficient stirring of industrial wastewater, improving the denitrification and phosphorus removal efficiency in the square reaction tank. The main motor 1 serves as the power motor, and its output end is fixedly connected to the lower connecting frame 31, driving the rotation of the lower connecting column 32, which in turn drives the rotation of the lower connecting plate 33 and the lower transmission wheel 34. The inner wall of the lower transmission wheel 34 is connected to the outer wall of the rotating shaft 39 by a bearing. The lower transmission wheel 34 is located on the upper side of the lower connecting frame 312 but is not fixedly connected to the lower connecting frame 312. The lower transmission wheel 34 can mesh with the outer side of the side transmission wheel 35 and rotate, driving the rotation of the outer rotating wheel 36, which in turn drives the universal stirring rod. 37. For stirring industrial wastewater, a secondary motor 38 is installed at the bottom of the main motor 1, which can drive the rotation of the rotating shaft 39, and further drive the rotation of the lower bottom stirring plate 310 and the bottom stirring ring 311. The strip-shaped design of the bottom stirring plate 310 can increase the stirring amplitude of the industrial wastewater, so that there will not be too many stirring dead corners even in a square reaction tank. The lower connecting frame 312 rotates with the rotation of the rotating shaft 39, driving the rotation of the auxiliary stirring rod 313 to achieve higher stirring efficiency for industrial wastewater, without disrupting the balance of the biological community used for reaction in the wastewater due to the propeller rotation.

[0036] The anti-clogging mechanism 4 is used to prevent solid sediments in the wastewater from accumulating in the rotating shaft 39. The front connecting frame 41 is fixedly connected to the front side of the rear fixed frame 2. The rear fixed frame 2 and the front connecting frame 41 are reinforced by the connecting frame reinforcing rib 42 to ensure the support and connection strength of the stirring mechanism 3. The front connecting block 43 is fixedly connected to the front side of the front connecting frame 41. The inner connecting strip 44 is fixedly connected to the inner side of the front connecting block 43. The bottom of the inner connecting strip 44 is fixedly connected to the rotating shaft filter screen 45 to prevent sediments in industrial wastewater with excessively high water levels from clogging the rotation of the lower drive wheel 34. The bottom of the front connecting frame 41 is also fixedly connected to the main connecting rod 46. The main connecting rod 46 is used to fixally connect the outer filter screen 47. The inner filter screen 48 is provided inside the outer filter screen 47. The inner filter screen 48 is fixedly connected to the bottom of the lower connecting frame 312 by means of the auxiliary connecting rod 49 at its top, and drives the inner filter screen 48 and the lower connecting frame 312 to rotate together, cooperating with the outer filter screen 47 to prevent clogging.

Claims

1. An industrial wastewater denitrification and phosphorus removal reaction stirring device, comprising: Rear fixing frame (2), stirring mechanism (3) and anti-blocking mechanism (4); And the main motor (1), which is mounted on the rear fixed frame (2); The secondary motor (38) is mounted on the rear fixed frame (2) and below the main motor (1); Its features are, The stirring mechanism (3) includes: a rotating shaft (39), a bottom stirring plate (310), a lower connecting frame (312), an auxiliary stirring rod (313), a lower transmission wheel (34), a side transmission wheel (35), an outer rotating wheel (36), and a universal stirring rod (37). The rotating shaft (39) is driven to rotate by the secondary motor (38). The bottom stirring plate (310) is fixed to the lower part of the rotating shaft (39). The lower connecting frame (312) is fixed to the rotating shaft (39) and rotates with the rotating shaft (39). The auxiliary stirring rod (313) is connected to the lower connecting frame (312). The lower transmission wheel (34) is driven to rotate by the main motor (1). The side transmission wheel (35) meshes with the lower transmission wheel (34) and rotates. The outer rotating wheel (36) is driven to rotate by the side transmission wheel (35). The universal stirring rod (37) is connected to the outer rotating wheel (36). The anti-clogging mechanism (4) includes: a front connecting frame (41), a main connecting rod (46), an outer filter (47), an inner filter (48), and a secondary connecting rod (49). The front connecting frame (41) is fixedly connected to the rear fixed frame (2), the main connecting rod (46) is fixedly connected to the bottom of the front connecting frame (41), the outer filter (47) is fixed to the main connecting rod (46), the inner filter (48) is disposed inside the outer filter (47), and the inner filter (48) is fixedly connected to the bottom of the lower connecting frame (312) through the secondary connecting rod (49) and rotates together with the lower connecting frame (312).

2. The industrial wastewater denitrification and phosphorus removal reaction stirring device according to claim 1, characterized in that, The stirring mechanism (3) further includes a bottom stirring ring (311), which is fixed to the rotating shaft (39) and located below the bottom stirring plate (310).

3. The industrial wastewater denitrification and phosphorus removal reaction stirring device according to claim 1, characterized in that, The stirring mechanism (3) further includes: The lower connecting frame (31) is connected to the output end of the main motor (1); The lower connecting column (32) is connected to the lower connecting frame (31); The lower connecting piece (33) is connected to the lower connecting post (32), and the lower connecting piece (33) is used to drive the lower transmission wheel (34) to rotate.

4. The industrial wastewater denitrification and phosphorus removal reaction stirring device according to claim 1, characterized in that, The inner wall of the lower drive wheel (34) is connected to the outer wall of the rotating shaft (39) by bearings, and the lower drive wheel (34) is located on the upper side of the lower connecting frame (312) but is not fixedly connected to the lower connecting frame (312).

5. The industrial wastewater denitrification and phosphorus removal reaction stirring device according to claim 1, characterized in that, The bottom stirring plate (310) has a strip-shaped, encircling design.

6. The industrial wastewater denitrification and phosphorus removal reaction stirring device according to claim 1, characterized in that, The anti-blocking mechanism (4) also includes a connecting frame reinforcing rib (42), which is connected between the rear fixing frame (2) and the front connecting frame (41).

7. The industrial wastewater denitrification and phosphorus removal reaction stirring device according to claim 1, characterized in that, The anti-blocking mechanism (4) also includes: The front connecting block (43) is fixedly connected to the front side of the front connecting frame (41); The inner connecting piece (44) is fixedly connected to the inner side of the front connecting block (43); A rotating shaft filter (45) is fixedly connected to the bottom of the inner connecting piece (44), and the rotating shaft filter (45) is located below the lower drive wheel (34).

8. The industrial wastewater denitrification and phosphorus removal reaction stirring device according to claim 1, characterized in that, The secondary motor (38) is located at the bottom of the main motor (1).

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