MBBR anaerobic stirring system

Abstract

The utility model discloses an MBBR (Moving Bed Biofilm Reactor) anaerobic stirring system, which solves the problem in the prior art that when a stirring device is used for stirring, stirring blades are easy to collide with filler, so that the filler is damaged. The device comprises a reaction tank and an aeration device, and further comprises a stirring bracket arranged in the reaction tank, a double-curved-surface stirring impeller which is rotationally arranged on the stirring bracket and is used for stirring sewage and suspended filler in the reaction tank, and a driving device which is arranged on the stirring bracket and is used for driving the double-curved-surface stirring impeller to operate, the fixing mechanism is arranged at the bottom of the reaction tank and is used for fixing the stirring bracket. The driving device drives the double-curved-surface stirring impeller to stir in the reaction tank, and the stirring bracket is fixed at the bottom of the reaction tank through the fixing mechanism, so that the double-curved-surface stirring impeller is prevented from generating larger vibration during stirring, and the double-curved-surface stirring impeller can prevent suspended filler from colliding with the double-curved-surface stirring impeller; the microorganisms on the suspended filler are prevented from falling off after collision.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment, and in particular relates to an MBBR anaerobic stirring system. Background Art

[0002] At present, the MBBR process has been developed to a mature level, and the sewage treatment effect is stable. However, during use, a stirring device is generally installed in the anaerobic tank to stir the sewage, thereby improving the fluidization effect of the sewage in the anaerobic tank. When the sewage is stirred by the traditional submersible push-flow mixer, the stirring device is directly placed in the anaerobic tank. When started, the stirring device will produce a large amount of shaking in the sewage. During stirring, if the stirring blade rotates too fast, the stirring blade will collide with the suspended filler in the sewage, which is easy to damage the suspended filler, thereby causing the microorganisms on the filler to fall off, affecting the sewage treatment effect. If the stirring blade of the stirring device rotates too slowly, the shear force formed by the stirring blade in the sewage will be too small, thereby affecting the fluidization effect of the sewage in the anaerobic tank. Utility Model Content

[0003] The utility model provides an MBBR anaerobic stirring system to at least solve some of the above technical problems.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] The MBBR anaerobic stirring system includes a reaction tank and an aeration device, and also includes a stirring bracket arranged in the reaction tank, a hyperbolic stirring impeller rotatably arranged on the stirring bracket for stirring sewage and suspended fillers in the reaction tank, a driving device arranged on the stirring bracket for driving the hyperbolic stirring impeller to operate, and a fixing mechanism arranged at the bottom of the reaction tank for fixing the stirring bracket.

[0006] Furthermore, the driving device includes a waterproof motor arranged on the stirring bracket, and a speed reduction mechanism connected from the driving end of the waterproof motor; and a transmission mechanism connected from the speed reduction mechanism is connected to the hyperbolic stirring impeller.

[0007] Furthermore, the speed reduction mechanism includes a speed reducer connected to the driving end of the waterproof motor, a driving shaft connected to the output end of the speed reducer, and a driving bevel gear installed on the driving shaft; the transmission mechanism is connected to the driving bevel gear.

[0008] Furthermore, the transmission mechanism includes a transmission shaft, and a bevel gear is provided at both ends of the transmission shaft. One end of the transmission shaft is meshed with the reduction mechanism through the bevel gear, and the other end is meshed with the hyperbolic stirring impeller through the bevel gear.

[0009] Furthermore, the hyperbolic stirring impeller comprises a curved impeller connected to a driving device, and the curved surface of the outer wall of the curved impeller is evenly distributed with guide vanes in a spiral distribution.

[0010] Furthermore, the inner wall curved surface of the curved impeller is evenly distributed with spirally distributed shear ribs.

[0011] Furthermore, the curved impeller is provided with a plurality of pressure relief holes which are evenly distributed around the upper portion of the curved impeller.

[0012] Furthermore, the curved impeller is connected to a stirring shaft, and the stirring shaft is provided with a stirring shaft bevel gear connected to the driving device.

[0013] Furthermore, there are multiple hyperbolic stirring impellers, which are evenly distributed around the driving device in the circumferential direction.

[0014] Furthermore, the stirring support includes a mounting box provided in the reaction tank for mounting the driving device, and a stirring blade mounting box provided in the reaction tank for supporting the operation of the hyperbolic stirring impeller, and a sleeve communicating with each other is provided between the mounting box and the stirring blade mounting box;

[0015] A fixing plate is provided between the installation box and the stirring blade installation box, a plurality of supporting ribs are provided between the fixing plate and the sleeve, and a fixing mechanism is provided at the bottom of the reaction tank and connected to the fixing plate;

[0016] The fixing mechanism comprises an embedded stud arranged at the bottom of the reaction tank, and a through hole opened on the fixing plate and adapted to the embedded stud. A fastening nut for fixing is arranged on the top of the embedded stud, and the fastening nut is threadedly connected to the embedded stud.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model has a simple structure, a scientific and reasonable design, and is easy to use. The driving device of the utility model drives the hyperbolic stirring impeller on the stirring bracket to stir the sewage and suspended filler in the reaction tank 1, and the stirring bracket is fixed to the bottom of the reaction tank by a fixing mechanism, thereby preventing the hyperbolic stirring impeller from generating large vibrations during stirring. At the same time, the hyperbolic stirring impeller can prevent the suspended filler from colliding with the hyperbolic stirring impeller, thereby preventing the microorganisms on the suspended filler from falling off after the collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model.

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 It is a schematic diagram of the driving device of the utility model.

[0022] Figure 4 It is a schematic diagram of the hyperbolic stirring impeller of the utility model.

[0023] Figure 5 It is a schematic diagram of the fixing plate of the utility model.

[0024] Figure 6 It is a schematic diagram of the curved impeller of the utility model.

[0025] The names corresponding to the reference numerals are:

[0026] 1. Reaction tank; 2. Aeration device; 3. Fixing mechanism; 4. Stirring bracket; 5. Suspended filler; 6. Hyperbolic stirring impeller; 7. Driving device; 8. Installation box; 9. Casing; 10. Stirring blade installation box; 11. Waterproof motor; 12. Transmission shaft; 13. Active bevel gear; 14. Bevel gear; 15. Stirring shaft; 16. Stirring shaft bevel gear; 18. Fixing plate; 19. Support rib; 24. Guide vane; 25. Pressure relief hole; 26. Shear rib; 27. Curved impeller; 28. Reducer; 29. ​​Active shaft; 30. Embedded stud; 31. Through hole; 32. Fastening nut. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore they cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1.

[0031] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0032] The driving device 7 of the utility model drives the hyperbolic stirring impeller 6 on the stirring bracket 4 to stir the sewage and the suspended filler 5 in the reaction tank 1, and the stirring bracket 4 is fixed to the bottom of the reaction tank 1 by the fixing mechanism 3, so as to avoid the hyperbolic stirring impeller 6 from generating large vibrations during stirring. At the same time, the hyperbolic stirring impeller 6 can avoid the suspended filler 5 from colliding with the hyperbolic stirring impeller 6, so as to avoid the microorganisms on the suspended filler 5 from falling off after the collision.

[0033] Example 2.

[0034] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0035] The driving device 7 includes a waterproof motor 11 arranged on the stirring bracket 4, and a speed reduction mechanism connected from the driving end of the waterproof motor 11; the hyperbolic stirring impeller 6 is connected to a transmission mechanism connected from the speed reduction mechanism.

[0036] Based on Example 1, this Example 2 provides a more preferred structure of the driving device 7, specifically: the driving device 7 includes a waterproof motor 11 arranged on the stirring bracket 4, and a reduction mechanism connected from the driving end of the waterproof motor 11; the hyperbolic stirring impeller 6 is connected to a transmission mechanism connected from the reduction mechanism.

[0037] The waterproof motor 11 of the utility model is installed on the stirring bracket 4, and the reduction mechanism is connected to the output end of the waterproof motor 11, and the hyperbolic stirring impeller 6 is connected to the transmission mechanism connected from the reduction mechanism. Specifically, when the waterproof motor 11 rotates, the hyperbolic stirring impeller 6 is driven to operate through the reduction mechanism and the transmission mechanism, thereby stirring the sewage and the suspended filler 5 in the reaction tank 1, so that the suspended filler 5 is evenly mixed in the sewage, so that the microorganisms on the suspended filler 5 can treat the sewage.

[0038] Example 3.

[0039] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0040] The driving device 7 includes a waterproof motor 11 arranged on the stirring bracket 4, and a speed reduction mechanism connected from the driving end of the waterproof motor 11; the hyperbolic stirring impeller 6 is connected to a transmission mechanism connected from the speed reduction mechanism.

[0041] The speed reduction mechanism includes a speed reducer 28 connected to the driving end of the waterproof motor 11 , a driving shaft 29 connected to the output end of the speed reducer 28 , and a driving bevel gear 13 mounted on the driving shaft 29 ; the transmission mechanism is connected to the driving bevel gear 13 .

[0042] Based on Example 2, this Example 3 provides a more preferred structure of the reduction mechanism, specifically: the reduction mechanism includes a reducer 28 connected to the driving end of the waterproof motor 11, a driving shaft 29 connected to the output end of the reducer 28, and a driving bevel gear 13 installed on the driving shaft 29; the transmission mechanism is connected to the driving bevel gear 13.

[0043] The reducer 28 of the utility model is connected to the driving end of the waterproof motor 11, and the output end of the reducer 28 is connected to the driving shaft 29. The waterproof motor 11 drives the driving shaft 29 and the driving bevel gear 13 to rotate through the reducer 28, and drives the transmission mechanism through the driving bevel gear 13 to drive the hyperbolic stirring impeller 6 to rotate, so as to facilitate the stirring of the sewage and the suspended filler 5 in the reaction tank 1.

[0044] Example 4.

[0045] like Figure 1-6As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0046] The driving device 7 includes a waterproof motor 11 arranged on the stirring bracket 4, and a speed reduction mechanism connected from the driving end of the waterproof motor 11; the hyperbolic stirring impeller 6 is connected to a transmission mechanism connected from the speed reduction mechanism.

[0047] The transmission mechanism includes a transmission shaft 12 , and a bevel gear 14 is provided at both ends of the transmission shaft 12 . One end of the transmission shaft 12 is meshed with the reduction mechanism through the bevel gear 14 , and the other end of the transmission shaft 12 is meshed with the hyperbolic stirring impeller 6 through the bevel gear 14 .

[0048] This embodiment 4 provides a more preferred structure of the transmission mechanism based on the embodiment 2, specifically: the transmission mechanism includes a transmission shaft 12, and a bevel gear 14 is provided at each end of the transmission shaft 12. One end of the transmission shaft 12 is meshed with the reduction mechanism through the bevel gear 14, and the other end is meshed with the hyperbolic stirring impeller 6 through the bevel gear 14.

[0049] The utility model has a transmission shaft 12 rotatably arranged on the stirring bracket 4, and a bevel gear 14 is respectively provided at both ends of the transmission shaft 12, one bevel gear 14 of the transmission shaft 12 is meshed with the active bevel gear 13, and the other bevel gear 14 is meshed with the hyperbolic stirring impeller 6. Specifically, the reducer 28 can adjust the speed of the waterproof motor 11, and through the meshing of the bevel gear 14 and the active bevel gear 13, it is convenient to drive the hyperbolic stirring impeller 6 to operate, so as to facilitate the stirring of the sewage and the suspended filler 5 in the reaction tank 1.

[0050] The active bevel gear 13 of the utility model is meshed with the corresponding bevel gear 14 , and one active bevel gear 13 is meshed with a plurality of bevel gears 14 .

[0051] Example 5.

[0052] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0053] The MBBR anaerobic stirring system is characterized in that the hyperbolic stirring impeller 6 includes a curved impeller 27 connected to the driving device 7, and the outer wall curved surface of the curved impeller 27 is evenly distributed with spirally distributed guide vanes 24.

[0054] Based on Example 1, this Example 5 provides a more preferred structure of the hyperbolic stirring impeller 6, specifically: the hyperbolic stirring impeller 6 includes a curved impeller 27 connected to the driving device 7, and the outer wall curved surface of the curved impeller 27 is evenly distributed with spirally distributed guide vanes 24.

[0055] The curved impeller 27 of the utility model is meshed with the bevel gear 14, so that the waterproof motor 11 drives the curved impeller 27 to rotate. At the same time, the outer wall curved surface of the curved impeller 27 is evenly distributed with spirally distributed guide vanes 24. The guide vanes 24 can facilitate the curved impeller 27 to stir the sewage when rotating, so that the suspended filler 5 in the sewage can be evenly distributed in the sewage. The curved impeller 27 of the utility model includes a large diameter end and a small diameter end, and the large diameter end and the small diameter end are connected by a smooth curved surface. The outer diameter of the stirring shaft 15 is larger than the inner diameter of the small diameter end of the curved impeller 27. The stirring shaft 15 is inserted into the small diameter end of the curved impeller 27, and the stirring shaft 15 and the small diameter end of the curved impeller 27 are interference fit.

[0056] Example 6.

[0057] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0058] The hyperbolic stirring impeller 6 comprises a curved impeller 27 connected to the driving device 7 , and the outer wall curved surface of the curved impeller 27 is evenly distributed with guide vanes 24 in a spiral distribution.

[0059] The inner wall curved surface of the curved impeller 27 is evenly distributed with spirally distributed shear ribs 26 .

[0060] This embodiment 6 provides a more preferred structure of the curved impeller 27 based on the embodiment 5, specifically: the inner wall curved surface of the curved impeller 27 is evenly distributed with spirally distributed shear ribs 26.

[0061] When the curved impeller 27 of the utility model is in operation, the bubbles generated by the aeration device 2 will enter the curved impeller 27 during the rising process. Since the shear ribs 26 are provided on the inner wall of the curved impeller 27, the curved impeller 27 can beat the larger bubbles in the curved impeller 27 during the rotation process, thereby separating the bubbles into smaller bubbles, so that the microorganisms on the suspended filler 5 can fully react with the bubbles.

[0062] The spiral direction of the guide vane 24 of the present invention is opposite to the spiral direction of the shear rib 26 .

[0063] Example 7.

[0064] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0065] The hyperbolic stirring impeller 6 comprises a curved impeller 27 connected to the driving device 7 , and the outer wall curved surface of the curved impeller 27 is evenly distributed with guide vanes 24 in a spiral distribution.

[0066] The curved impeller 27 is provided with a plurality of pressure relief holes 25 , which are evenly distributed around the upper portion of the curved impeller 27 .

[0067] Based on Example 5, this Example 7 provides a more preferred structure of the curved impeller 27, specifically: the curved impeller 27 is provided with a pressure relief hole 25, and there are multiple pressure relief holes 25, which are evenly distributed around the upper part of the curved impeller 27.

[0068] The curved impeller 27 of the utility model rotates under the drive of the driving device 7. When the curved impeller 27 rotates, the sewage will enter the curved impeller 27 along the inner wall of the curved impeller 27. The pressure relief hole 25 opened on the curved impeller 27 can effectively guide the sewage in the curved impeller 27, so that when the curved impeller 27 rotates, the sewage in the curved impeller 27 can flow out of the curved impeller 27 through the pressure relief hole 25, thereby effectively reducing the greater resistance generated by the curved impeller 27 when stirring the sewage, thereby reducing the energy consumption of the curved impeller 27 when stirring the sewage.

[0069] The structure of the curved impeller 27 of the utility model is as follows Figure 6 As shown, Figure 6 The structures of the guide vane 24, the pressure relief holes 25 and the shear ribs 26 are not shown.

[0070] Example 8.

[0071] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0072] The hyperbolic stirring impeller 6 comprises a curved impeller 27 connected to the driving device 7 , and the outer wall curved surface of the curved impeller 27 is evenly distributed with guide vanes 24 in a spiral distribution.

[0073] The curved impeller 27 is connected to a stirring shaft 15 , and the stirring shaft 15 is provided with a stirring shaft bevel gear 16 connected to the driving device 7 .

[0074] Based on Example 5, this Example 8 provides a more preferred structure of the curved impeller 27, specifically: the curved impeller 27 is connected to the stirring shaft 15, and the stirring shaft 15 is provided with a stirring shaft bevel gear 16 connected to the driving device 7.

[0075] The bevel gear 16 of the stirring shaft 15 of the utility model is meshed with the bevel gear 14, thereby driving the curved impeller 27 to rotate. Specifically, the waterproof motor 11 drives the driving shaft 29 to rotate through the reducer 28, and the driving bevel gear 13 installed on the driving shaft 29 is meshed with the bevel gear 14 at one end of the transmission shaft 12, thereby driving the transmission shaft 12 to rotate, and the bevel gear 14 at the other end of the transmission shaft 12 is meshed with the stirring shaft bevel gear 16, thereby driving the stirring shaft 15 to rotate through the mixing shaft bevel gear 16, and the stirring shaft 15 drives the dynamic curved impeller 27 to rotate, thereby stirring the sewage and suspended filler 5 in the reaction tank 1.

[0076] Example 9.

[0077] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0078] There are multiple hyperbolic stirring impellers 6, which are evenly distributed around the driving device 7 in the circumferential direction.

[0079] Based on Example 1, this Example 9 provides a more preferred structure of the hyperbolic stirring impeller 6, specifically: there are multiple hyperbolic stirring impellers 6, which are evenly distributed around the driving device 7 in the circumferential direction.

[0080] The utility model preferably has four hyperbolic stirring impellers 6, which are distributed around the driving device 7, and each hyperbolic stirring impeller 6 corresponds to a transmission mechanism, so that the four hyperbolic stirring impellers 6 can be driven to rotate simultaneously by a waterproof motor 11, thereby facilitating the hyperbolic stirring impellers 6 to stir the sewage and suspended filler 5 in the reaction tank 1, and can effectively improve the stirring efficiency of the hyperbolic stirring impellers 6 on the sewage and suspended filler 5 in the reaction tank 1.

[0081] Example 10.

[0082] like Figure 1-6 As shown, the utility model provides an MBBR anaerobic stirring system, including a reaction tank 1 and an aeration device 2, and also includes a stirring bracket 4 arranged in the reaction tank 1, a hyperbolic stirring impeller 6 rotatably arranged on the stirring bracket 4 for stirring sewage and suspended filler 5 in the reaction tank 1, a driving device 7 arranged on the stirring bracket 4 for driving the hyperbolic stirring impeller 6 to operate, and a fixing mechanism 3 arranged at the bottom of the reaction tank 1 for fixing the stirring bracket 4.

[0083] The stirring support 4 includes an installation box 8 provided in the reaction tank 1 for installing the driving device 7, and a stirring blade installation box 10 provided in the reaction tank 1 for supporting the operation of the hyperbolic stirring impeller 6; a sleeve 9 is provided between the installation box 8 and the stirring blade installation box 10, which are connected to each other;

[0084] A fixing plate 18 is provided between the installation box 8 and the stirring blade installation box 10, a plurality of supporting ribs 19 are provided between the fixing plate 18 and the sleeve 9, and the fixing mechanism 3 is provided at the bottom of the reaction tank 1 and connected to the fixing plate 18;

[0085] The fixing mechanism 3 includes an embedded stud 30 arranged at the bottom of the reaction tank 1, and a through hole 31 opened on the fixing plate 18 and adapted to the embedded stud 30. A fastening nut 32 for fixing is provided on the top of the embedded stud 30, and the fastening nut 32 and the embedded stud 30 are threadedly connected.

[0086] This embodiment 10 provides a more preferred structure of the stirring support 4 on the basis of the embodiment 1, specifically: the stirring support 4 includes an installation box 8 arranged in the reaction tank 1 for installing the driving device 7, and a stirring blade installation box 10 arranged in the reaction tank 1 for supporting the operation of the hyperbolic stirring impeller 6; a sleeve 9 is provided between the installation box 8 and the stirring blade installation box 10, which are connected to each other;

[0087] A fixing plate 18 is provided between the installation box 8 and the stirring blade installation box 10, a plurality of supporting ribs 19 are provided between the fixing plate 18 and the sleeve 9, and the fixing mechanism 3 is provided at the bottom of the reaction tank 1 and connected to the fixing plate 18;

[0088] The fixing mechanism 3 includes an embedded stud 30 arranged at the bottom of the reaction tank 1, and a through hole 31 opened on the fixing plate 18 and adapted to the embedded stud 30. A fastening nut 32 for fixing is provided on the top of the embedded stud 30, and the fastening nut 32 and the embedded stud 30 are threadedly connected.

[0089] The installation box 8 of the utility model is installed in the reaction tank 1, and the waterproof motor 11 is installed on the installation box 8. The reducer 28 is arranged in the installation box 8. The driving shaft 29 is rotatably arranged in the installation box 8 and connected to the output end of the reducer 28. The driving end of the waterproof motor 11 passes through the installation box 8 and is connected to the reducer 28. The installation box 8 can facilitate the installation of the waterproof motor 11 and can prevent the reducer 28 and the driving shaft 29 from being corroded by sewage.

[0090] The stirring shaft 15 of the utility model is rotatably installed on the stirring blade installation box 10, and the stirring shaft bevel gear 16 is located in the stirring blade installation box 10 and meshes with a bevel gear 14 on the transmission shaft 12. The stirring blade installation box 10 can prevent the stirring shaft bevel gear 16 and the bevel gear 14 from being corroded by sewage.

[0091] A sleeve 9 is provided between the stirring blade installation box 10 and the installation box 8 of the utility model, and a transmission shaft 12 is rotatably installed in the sleeve 9, and a bevel gear 14 on the transmission shaft 12 is located in the stirring blade installation box 10, and the other bevel gear 14 is located in the installation box 8, the bevel gear 14 in the installation box 8 is meshed with the active bevel gear 13, and the bevel gear 14 in the stirring blade installation box 10 is connected with the stirring shaft bevel gear 16, so that the stirring shaft 15 can be driven to rotate through the stirring shaft bevel gear 16, and the stirring shaft 15 drives the curved impeller 27 to rotate, so that it is convenient to stir the sewage and suspended filler 5 in the reaction tank 1, and at the same time, the stirring blade installation box 10 can facilitate the support of the hyperbolic stirring impeller 6, and the number of the stirring blade installation boxes 10 and the sleeve 9 of the utility model is consistent with the number of the hyperbolic stirring impeller 6.

[0092] The fixing plate 18 of the utility model can facilitate the fixing of the installation box 8 and the stirring blade installation box 10, and at the same time can improve the rigidity of the sleeve 9 through the fixing plate 18. A supporting rib 19 is provided at the bottom of the fixing plate 18. The supporting rib 19 can prevent the fixing plate 18 from interfering with the aeration device 2 when the fixing plate 18 is installed, and the fixing plate 18 can be fixed to the bottom of the reaction tank 1 through the fixing mechanism 3, thereby preventing the stirring bracket 4 from shaking.

[0093] The embedded stud 30 of the utility model passes through the through hole 31 on the fixing plate 18 and is fastened by the fastening nut 32, so as to fix the fixing plate 18, thereby preventing the stirring bracket 4 from shaking greatly when the hyperbolic stirring impeller 6 is stirring, and fastening by the fastening nut 32 can facilitate the fixing of the stirring bracket 4.

[0094] The aeration device 2, suspended filler 5, waterproof motor 11, active bevel gear 13, bevel gear 14, stirring shaft bevel gear 16, and reducer 28 used in the utility model are all prior art and can be directly purchased and used on the market. Therefore, the structure, circuit and control principle of the aeration device 2, suspended filler 5, waterproof motor 11, active bevel gear 13, bevel gear 14, stirring shaft bevel gear 16, and reducer 28 are not described in detail here.

[0095] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, rather than limiting it, and certainly not limiting the patent scope of the present invention; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention; that is to say, any changes or embellishments made to the main design concept and spirit of the present invention that have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention; in addition, the direct or indirect application of the technical solution of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. The MBBR anaerobic stirring system comprises a reaction tank (1) and an aeration device (2), characterized in that: The invention also comprises a stirring support (4) arranged in the reaction tank (1), a hyperbolic stirring impeller (6) rotatably arranged on the stirring support (4) for stirring sewage and suspended filler (5) in the reaction tank (1), a driving device (7) arranged on the stirring support (4) for driving the hyperbolic stirring impeller (6) to operate, and a fixing mechanism (3) arranged at the bottom of the reaction tank (1) for fixing the stirring support (4).

2. The MBBR anaerobic stirring system according to claim 1, characterized in that: The driving device (7) comprises a waterproof motor (11) arranged on the stirring bracket (4), and a speed reduction mechanism connected from the driving end of the waterproof motor (11); and a transmission mechanism connected from the speed reduction mechanism is connected to the hyperbolic stirring impeller (6).

3. The MBBR anaerobic stirring system according to claim 2, characterized in that: The speed reduction mechanism comprises a speed reducer (28) connected to the driving end of the waterproof motor (11), a driving shaft (29) connected to the output end of the speed reducer (28), and a driving bevel gear (13) mounted on the driving shaft (29); the transmission mechanism is connected to the driving bevel gear (13).

4. The MBBR anaerobic stirring system according to claim 2, characterized in that: The transmission mechanism comprises a transmission shaft (12), and a bevel gear (14) is respectively provided at both ends of the transmission shaft (12). One end of the transmission shaft (12) is meshed with the reduction mechanism through the bevel gear (14), and the other end of the transmission shaft (12) is meshed with the hyperbolic stirring impeller (6) through the bevel gear (14).

5. The MBBR anaerobic stirring system according to claim 1, characterized in that: The hyperbolic stirring impeller (6) comprises a curved impeller (27) connected to a driving device (7), and guide vanes (24) distributed in a spiral pattern are evenly distributed on the curved surface of the outer wall of the curved impeller (27).

6. The MBBR anaerobic stirring system according to claim 5, characterized in that: The inner wall curved surface of the curved impeller (27) is evenly distributed with spirally distributed shear ribs (26).

7. The MBBR anaerobic stirring system according to claim 5, characterized in that: The curved impeller (27) is provided with a pressure relief hole (25), and there are a plurality of pressure relief holes (25) which are evenly distributed around the upper part of the curved impeller (27).

8. The MBBR anaerobic stirring system according to claim 5, characterized in that: The curved impeller (27) is connected to a stirring shaft (15), and the stirring shaft (15) is provided with a stirring shaft bevel gear (16) connected to the driving device (7).

9. The MBBR anaerobic stirring system according to claim 1, characterized in that: There are a plurality of hyperbolic stirring impellers (6), which are evenly distributed around the driving device (7) in the circumferential direction.

10. The MBBR anaerobic stirring system according to claim 1, characterized in that: The stirring support (4) comprises a mounting box (8) arranged in the reaction tank (1) for mounting a driving device (7), and a stirring blade mounting box (10) arranged in the reaction tank (1) for supporting the operation of a hyperbolic stirring impeller (6), wherein a sleeve (9) which is in communication with each other is arranged between the mounting box (8) and the stirring blade mounting box (10); A fixing plate (18) is provided between the installation box (8) and the stirring blade installation box (10), a plurality of supporting ribs (19) are provided between the fixing plate (18) and the sleeve (9), and a fixing mechanism (3) is provided at the bottom of the reaction tank (1) and connected to the fixing plate (18); The fixing mechanism (3) comprises a pre-embedded stud (30) arranged at the bottom of the reaction tank (1), and a through hole (31) opened on the fixing plate (18) and adapted to the pre-embedded stud (30). A fastening nut (32) for fixing is arranged at the top of the pre-embedded stud (30), and the fastening nut (32) and the pre-embedded stud (30) are threadedly connected.

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