Microbial fermentation device for wastewater treatment

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a microbial fermentation device for wastewater treatment, which comprises a stirring shell and a water inlet pipeline at the upper end of the stirring shell, a stirring shaft is rotatably arranged in the stirring shell, an inflow hole is formed in the upper end of the stirring shaft, the water inlet pipeline is communicated with the inflow hole, and a stirring plate is arranged on the stirring shaft. A shaft body of the stirring shaft is provided with an outflow hole for liquid to flow into the stirring shell, the bottom of the stirring shell is provided with a driving assembly for driving the stirring shaft to rotate, a mixing barrel is rotationally arranged in the stirring shell, a linkage assembly for driving the mixing barrel to rotate is arranged between the mixing barrel and the stirring shell, and the bottom of the stirring shell is communicated with a discharging device. The stirring shaft is driven by the driving assembly to rotate, then wastewater and microorganisms are added into the stirring shaft together through the water inlet pipeline and then flow into the stirring shell along with the outflow holes, so that the interior of the stirring shell is stirred by the stirring plates, and the stirring plates in the middle and the external mixing barrel rotate at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater treatment, and in particular to a microbial fermentation device for wastewater treatment. Background Art

[0002] Wastewater treatment is the use of physical, chemical and biological methods to treat wastewater, purify wastewater, reduce pollution, and even achieve the purpose of wastewater recovery and reuse, and make full use of water resources. Microbial fermentation refers to the process of using microorganisms to convert raw materials into products needed by humans through specific metabolic pathways under suitable conditions. The existing industrial wastewater and urban wastewater often contain rich organic matter, as well as various heavy metals, pathogens, parasite eggs and other impurities. If not properly handled, it will inevitably cause secondary pollution and seriously affect the surrounding ecological environment. Most of the existing wastewater treatment uses microbial fermentation to remove specific impurities contained in the wastewater.

[0003] When microorganisms remove impurities in wastewater, in order to improve the contact effect after the wastewater and microorganisms come into contact, they are usually stirred to promote the fermentation effect. However, the stirring method in the prior art is simply to use a stirring plate to allow the wastewater and microorganisms to contact, and the mixing effect is general, resulting in the need to extend the subsequent fermentation time. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a microbial fermentation device for wastewater treatment to solve the above technical problems.

[0005] The above-mentioned purpose of the present application is achieved through the following technical scheme: a microbial fermentation device for wastewater treatment, comprising a stirring shell and a water inlet pipe at the upper end of the stirring shell, a stirring shaft is rotatably arranged in the stirring shell, an inlet hole is provided at the upper end of the stirring shaft, the water inlet pipe and the inlet hole are connected, a stirring plate is provided on the stirring shaft, an outflow hole is provided on the shaft body of the stirring shaft for liquid to flow into the stirring shell, a driving component for driving the stirring shaft to rotate is provided at the bottom of the stirring shell, a mixing drum is rotatably arranged inside the stirring shell, a linkage component for driving the mixing drum to rotate is provided between the mixing drum and the stirring shell, and a discharge device is connected to the bottom of the stirring shell.

[0006] By adopting the above technical solution, the driving component drives the stirring shaft to rotate, and then wastewater and microorganisms are added to the stirring shaft through the water inlet pipe, and then flow into the stirring shell through the outflow hole, so that the stirring plate stirs the inside of the stirring shell. At the same time, the internal stirring shell is driven to rotate together through the linkage component, and the stirring plate in the middle and the external mixing cylinder are rotated simultaneously, thereby improving the mixing of wastewater and microorganisms, thereby shortening the subsequent fermentation time of microorganisms and impurities in water.

[0007] Furthermore, the linkage assembly includes a driving gear fixedly connected to the stirring shaft, a stirring shell extends from the upper end of the mixing barrel, a circle of driven gear ring is fixedly provided on the upper end of the mixing barrel, and a linkage gear meshing with the driving gear is rotatably provided on the upper end of the stirring shell, and the linkage gear is simultaneously meshed with the driven gear ring.

[0008] By adopting the above technical solution, when the driving device drives the stirring shaft to rotate, it will drive the stirring driving gear to rotate together, thereby driving the linkage gear on the stirring shell to rotate, so that it drives the meshing driven meshing ring, and the mixing barrel rotates together, realizing simultaneous internal and external rotation and mixing. At the same time, through the gear between the driving gear and the driven meshing ring, the stirring shaft and the mixing barrel will rotate in opposite directions, thereby further improving the mixing effect of microorganisms and impurities in water.

[0009] Furthermore, an inclined ring is fixedly arranged inside the mixing barrel, the inclined ring is provided with an inclined surface, a plurality of groups of step plates are fixedly arranged on the inclined surface of the inclined ring, the upper ends of the step plates are provided with wave grooves, and the inflow hole on the stirring shaft is inclinedly opened on the stirring shaft.

[0010] By adopting the above technical solution, when wastewater flows into the interior of the stirring shell from the downwardly inclined inflow hole on the stirring shaft, the outflow distance will become longer due to the slope, and it will flow to the inclined ring. Since the stirring shaft and the mixing drum are rotating and rotating in opposite directions at the same time, the outflowing wastewater will hit the step plate on the inclined ring while rotating, and the wastewater will be continuously separated and dispersed by the step plate, and then mixed inside the mixing drum.

[0011] Furthermore, the stirring plate is tilted and fixedly connected to the stirring shaft, the outflow holes are provided in multiple groups and are evenly distributed on the stirring shaft, and the inclined rings are provided in multiple groups and are evenly distributed inside the mixing barrel.

[0012] By adopting the above technical solution, when the wastewater flows into the mixing barrel through the multiple sets of inflow holes on the stirring shaft, it will flow to the step plates on different inclined rings respectively, and then be mixed and stirred. At the same time, the inclined setting of the stirring plate can further make the stirred wastewater more chaotic and sufficient.

[0013] Furthermore, a sealing ring is rotatably provided on the upper end of the stirring shaft, and the water inlet pipe is fixedly connected to the sealing ring.

[0014] By adopting the above technical solution, the sealing ring can be arranged so that the water inlet pipe will not be affected when the stirring shaft rotates.

[0015] Furthermore, the stirring plate is provided with a plurality of water holes, and the hole walls of the water holes are provided with flow line grooves opened on the stirring plate.

[0016] By adopting the above technical solution, the setting of the water holes allows wastewater and microorganisms to pass through the through holes when the stirring plate and the mixing plate stir each other, thereby breaking them up and further mixing them. At the same time, the setting of the streamline groove can further accelerate the water flow rate inside the stirring shell.

[0017] Furthermore, the discharge device comprises a discharge pipe fixedly connected to the bottom of the stirring shell, and a stop valve is fixedly installed on the discharge pipe.

[0018] By adopting the above technical solution, when mixing and stirring, the stop valve is closed first, and the mixed wastewater and microorganisms are discharged through the discharge pipe after opening the stop valve for subsequent fermentation and other processes.

[0019] Furthermore, the driving assembly includes a driving motor fixedly connected to the bottom of the stirring shell, and the output end of the driving motor is fixedly connected to the bottom of the stirring shaft.

[0020] By adopting the above technical solution, the stirring shaft is driven to rotate by the driving motor, thereby driving the stirring plate to stir and mix the wastewater and microorganisms inside.

[0021] Furthermore, a sealing cover installed on the upper end of the mixing barrel is provided on the upper end of the driving gear, a sealing ring is fixedly provided on the bottom of the sealing cover, the sealing cover is plugged into the mixing barrel on all sides, and the middle part of the sealing cover is rotatably connected to the stirring shaft.

[0022] By adopting the above technical solution and setting a sealing cover, the linkage device can be sealed to prevent excessive dust from entering therein, which would cause the linkage device to be unable to be used normally.

[0023] Furthermore, a rotating column is rotatably arranged on the side wall of the sealing cover, and a fixing is fixed on the rotating column. Locking columns are fixedly arranged on both sides of the rotating rod. A first sliding groove is provided on the sealing cover, and a second sliding groove is provided on the mixing barrel. The first sliding groove and the second sliding groove are spliced ​​into a circular groove. The locking column is slidably connected in the first sliding groove and the second sliding groove. Fixed magnets are fixedly arranged in the middle of the first sliding groove and the second sliding groove. The locking column is made of metal material.

[0024] By adopting the above technical solution, after the sealing cover is installed on the mixing barrel, the first sliding groove and the second sliding groove are connected to form a circular groove, and the rotating rod is adjusted to allow the two locking columns to move in the first sliding groove and the second sliding groove. When the two locking columns are respectively in the fixed magnet positions in the first sliding groove and the second sliding groove, they will be adsorbed by the columns, thereby fixing the mixing barrel and the sealing cover.

[0025] In summary, the present application includes the following beneficial technical effects: by driving the stirring shaft to rotate through the driving assembly, wastewater and microorganisms can be quickly and evenly mixed. The design of the stirring plate on the stirring shaft and the outflow hole opened on the shaft body ensures that the liquid can be evenly distributed inside the stirring shell. At the same time, the linkage assembly drives the mixing barrel to rotate synchronously with the stirring shaft, forming an inner and outer double-layer stirring effect, further improving the mixing efficiency. This design enables the wastewater and microorganisms to be fully mixed in a shorter time, providing favorable conditions for the subsequent fermentation process. Since the wastewater and microorganisms can be mixed quickly and evenly, the microorganisms can contact the impurities in the wastewater more quickly, thereby accelerating the fermentation process. The improvement in mixing efficiency means that the microorganisms can more effectively decompose the organic matter in the wastewater, reduce the processing time, and improve the efficiency of wastewater treatment. The efficient mixing and fermentation process helps the microorganisms to better play a degradation role, thereby improving the quality of wastewater treatment. By optimizing the stirring and mixing mechanism, the device can more effectively remove harmful substances in the wastewater, making the treated water clearer and harmless. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure in the embodiment;

[0027] Figure 2 yes Figure 1 Middle section view along AA;

[0028] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0029] Figure 4 is a schematic diagram of the structure in which the sealing cover is removed in the embodiment;

[0030] Figure 5 Schematic diagram of the internal structure of the stirring shell in the embodiment.

[0031] Figure numerals: 1. stirring shell; 11. mixing cylinder; 12. stirring shaft; 13. outflow hole; 14. stirring plate; 15. water hole; 16. tilting ring; 17. step plate; 18. wave groove; 2. sealing cover; 21. rotating column; 22. rotating rod; 23. locking column; 24. first sliding groove; 25. second sliding groove; 3. water inlet pipe; 31. sealing ring; 32. water outlet pipe; 33. stop valve; 34. driving motor; 35. driving gear; 36. linkage gear; 37. driven meshing ring. DETAILED DESCRIPTION

[0032] The present application is further described in detail below with reference to the accompanying drawings.

[0033] Example, see Figure 1 - Figure 5A microbial fermentation device for wastewater treatment comprises a stirring shell 1 and a water inlet pipe 3 at the upper end of the stirring shell 1, a stirring shaft 12 is rotatably arranged in the stirring shell 1, an inlet hole is arranged at the upper end of the stirring shaft 12, the water inlet pipe 3 is connected to the inlet hole, a stirring plate 14 is arranged on the stirring shaft 12, an outflow hole 13 for liquid to flow into the stirring shell 1 is arranged on the shaft body of the stirring shaft 12, a driving component for driving the stirring shaft 12 to rotate is arranged at the bottom of the stirring shell 1, a mixing drum 11 is rotatably arranged inside the stirring shell 1, a linkage component for driving the mixing drum 11 to rotate is arranged between the mixing drum 11 and the stirring shell 1, and a discharge device is connected to the bottom of the stirring shell 1. The stirring shaft 12 is driven to rotate by the driving component, and then the wastewater and microorganisms are added to the stirring shaft 12 through the water inlet pipe 3, and then flow into the stirring shell 1 through the outflow hole 13, so that the stirring plate 14 stirs the inside of the stirring shell 1. At the same time, the internal stirring shell 1 is driven to rotate together by the linkage component, and the stirring plate 14 in the middle and the external mixing cylinder 11 are rotated simultaneously, thereby improving the mixing of the wastewater and microorganisms, thereby shortening the subsequent fermentation time of the microorganisms and impurities in the water.

[0034] In this embodiment, the linkage assembly includes a driving gear 35 fixedly connected to the stirring shaft 12, a stirring shell 1 extends from the upper end of the mixing barrel 11, a circle of driven meshing ring 37 is fixedly provided on the upper end of the mixing barrel 11, and a linkage gear 36 meshing with the driving gear 35 is rotatably provided on the upper end of the stirring shell 1, and the linkage gear 36 is simultaneously meshed with the driven meshing ring 37. When the driving device drives the stirring shaft 12 to rotate, it will drive the stirring driving gear 35 to rotate together, thereby driving the linkage gear 36 on the stirring shell 1 to rotate, so that it drives the meshing driven meshing ring 37, so that the mixing barrel 11 rotates together, and realizes simultaneous rotation and mixing of the inside and outside. At the same time, through the gear between the driving gear 35 and the driven meshing ring 37, the stirring shaft 12 and the mixing barrel 11 will rotate in opposite directions, thereby further improving the mixing effect of microorganisms and impurities in water.

[0035] In this embodiment, a tilted ring 16 is fixedly arranged inside the mixing drum 11, and a tilted surface is provided on the tilted ring 16. A plurality of stepped plates 17 are fixedly arranged on the tilted surface of the tilted ring 16, and a wave groove 18 is provided on the upper end of the stepped plates 17. The inflow hole on the stirring shaft 12 is tilted and provided on the stirring shaft 12. When the wastewater flows into the stirring shell 1 from the tilted downward inflow hole on the stirring shaft 12, the outflow distance will become longer due to the slope, and the wastewater will flow to the tilted ring 16. Since the stirring shaft 12 and the mixing drum 11 are rotating and rotating in opposite directions at the same time, the wastewater flowing out will hit the stepped plates 17 on the tilted ring 16 while rotating, and the wastewater will be continuously separated and stirred by the stepped plates 17, and then mixed inside the mixing drum 11.

[0036] In this embodiment, the stirring plate 14 is fixedly connected to the stirring shaft 12 with an inclination, multiple groups of outflow holes are provided and evenly distributed on the stirring shaft 12, and multiple groups of inclined rings 16 are provided and evenly distributed inside the mixing barrel 11. When the wastewater flows into the mixing barrel 11 through the multiple groups of inflow holes on the stirring shaft 12, it will flow to the stepped plates 17 on different inclined rings 16 respectively, and then be mixed and stirred. At the same time, the inclined setting of the stirring plate 14 can further make the wastewater being stirred more chaotic and sufficient.

[0037] In this embodiment, a sealing ring 31 is rotatably provided on the upper end of the stirring shaft 12, and the water inlet pipe 3 is fixedly connected to the sealing ring 31. The sealing ring 31 is provided so that the water inlet pipe 3 will not be affected when the stirring shaft 12 rotates.

[0038] In this embodiment, a plurality of water holes 15 are provided on the stirring plate 14, and a streamline groove is provided on the hole wall of the water hole 15. The provision of the water holes 15 allows wastewater and microorganisms to pass through the through holes when the stirring plate 14 and the mixing plate are stirred with each other, thereby breaking them up and further mixing them, and the provision of the streamline groove can further accelerate the water flow rate inside the stirring shell 1.

[0039] In this embodiment, the discharge device includes a discharge pipe fixedly connected to the bottom of the stirring shell 1, and a stop valve 33 is fixedly installed on the discharge pipe. When mixing and stirring, the stop valve 33 is closed first, and the mixed wastewater and microorganisms are discharged through the discharge pipe after opening the stop valve 33, and then the subsequent fermentation process is carried out.

[0040] In this embodiment, the driving assembly includes a driving motor 34 fixedly connected to the bottom of the stirring shell 1, and the output end of the driving motor 34 is fixedly connected to the bottom of the stirring shaft 12. The driving motor 34 drives the stirring shaft 12 to rotate, thereby driving the stirring plate 14 to stir and mix the wastewater and microorganisms inside.

[0041] In this embodiment, a sealing cover 2 mounted on the upper end of the mixing barrel 11 is provided at the upper end of the driving gear 35, and a sealing ring is fixedly provided at the bottom of the sealing cover 2. The sealing cover 2 is plugged into the mixing barrel 11, and the middle of the sealing cover 2 is rotatably connected to the stirring shaft 12. By setting the sealing cover 2, the linkage device can be sealed to prevent excessive dust from entering therein, resulting in failure of normal linkage.

[0042] In this embodiment, a rotating column 21 is rotatably provided on the side wall of the sealing cover 2, a rotating rod 22 is fixedly provided on the rotating column 21, locking columns 23 are fixedly provided on both sides of the rotating rod 22, a first sliding groove 24 is provided on the sealing cover 2, and a second sliding groove 25 is provided on the mixing barrel 11, the first sliding groove 24 and the second sliding groove 25 are spliced ​​into a circular groove, the locking column 23 is slidably connected in the first sliding groove 24 and the second sliding groove 25, and a fixed magnet is fixedly provided in the middle of the first sliding groove 24 and the second sliding groove 25, and the locking column 23 is made of metal material. When the sealing cover 2 is installed on the mixing barrel 11, the first sliding groove 24 and the second sliding groove 25 are docked into a circular groove, and the rotating rod 22 is adjusted to allow the two locking columns 23 to move in the first sliding groove 24 and the second sliding groove 25. When the two locking columns 23 are respectively at the fixed magnet positions in the first sliding groove 24 and the second sliding groove 25, they will be adsorbed by the columns, thereby fixing the mixing barrel 11 and the sealing cover 2.

[0043] Specific implementation process: In the present application, a stirring shell 1 and a water inlet pipe 3 at the upper end of the stirring shell 1 are provided, a stirring shaft 12 is rotatably arranged in the stirring shell 1, an inlet hole is provided at the upper end of the stirring shaft 12 and is connected to the water inlet pipe 3, a stirring plate 14 is provided on the stirring shaft 12, an outflow hole 13 is provided on the shaft body to allow liquid to flow into the stirring shell 1, a driving component for driving the stirring shaft 12 to rotate is provided at the bottom of the stirring shell 1, a mixing drum 11 is rotatably arranged inside the stirring shell 1, a linkage component for driving the mixing drum 11 to rotate is provided between the mixing drum 11 and the stirring shell 1, and a discharge device is connected to the bottom of the stirring shell 1. The linkage component includes a driving gear 35 fixedly connected to the stirring shaft 12, the upper end of the mixing drum 11 extends out of the stirring shell 1 and is fixedly provided with a circle of driven meshing ring 37, and a linkage gear 36 meshing with the driving gear 35 is rotatably provided at the upper end of the stirring shell 1, and is meshed with the driven meshing ring 37 at the same time. An inclined ring 16 is fixedly arranged inside the stirring shell 1, on which an inclined surface is provided and a plurality of groups of step plates 17 are fixedly arranged. The upper ends of the step plates 17 are provided with wave grooves 18, and the inlet holes on the stirring shaft 12 are inclined. The stirring plate 14 is obliquely fixedly connected to the stirring shaft 12, and a plurality of groups of outflow holes are provided and evenly distributed. The inclined ring 16 is provided in a plurality of groups and evenly distributed inside the mixing barrel 11. A sealing ring 31 is rotatably arranged on the upper end of the stirring shaft 12, and the water inlet pipe 3 is fixedly connected to the sealing ring 31. A plurality of groups of water holes 15 are provided on the stirring plate 14, and streamline grooves provided on the stirring plate 14 are provided on the hole wall. The discharge device includes a discharge pipe fixedly connected to the bottom of the stirring shell 1, and a stop valve 33 is fixedly installed on it. The drive assembly includes a drive motor 34 fixedly connected to the bottom of the stirring shell 1, and the output end is fixedly connected to the bottom of the stirring shaft 12. A sealing cover 2 installed on the upper end of the mixing drum 11 is provided at the upper end of the driving gear 35, and sealing rings are fixedly provided at the bottom around it. It is plugged into the mixing drum 11 around it, and is rotatably connected to the stirring shaft 12 in the middle. A rotating rod 22 is rotatably provided on the side wall, and locking columns 23 are fixedly provided on both sides. A first sliding groove 24 is provided on the sealing cover 2, and a second sliding groove 25 is provided on the mixing drum 11. They are spliced ​​into an annular groove, and the locking column 23 is slidably connected therein. A fixed magnet is fixedly provided in the middle, and the locking column 23 is made of metal material.During use, wastewater flows into the stirring shell 1 from the inclined inflow hole on the stirring shaft 12. Due to the inclination, the outflow distance becomes longer and flows to the inclined ring 16. The stirring shaft 12 and the mixing drum 11 rotate in opposite directions. The wastewater hits the step plate 17 while rotating, and the wastewater is continuously stirred by the step plate 17. Then, as it is mixed inside the mixing drum 11, it flows to different inclined rings 16 through multiple groups of inflow holes, and then mixed and stirred. The inclined setting of the stirring plate 14 makes the wastewater more chaotic and sufficient. The sealing ring 31 ensures that the water inlet pipe 3 is not affected when the stirring shaft 12 rotates. The water hole 15 and the streamline groove accelerate the water flow rate and further mix. The mixed wastewater and microorganisms are discharged after opening the stop valve 33, and subsequent fermentation and other processes are carried out. The driving motor 34 drives the stirring shaft 12 to rotate, and the linkage device seals to prevent dust from entering. The sealing cover 2 is fixed to the mixing drum 11 by the locking column 23 and the fixed magnet.

[0044] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A microbial fermentation device for wastewater treatment, characterized in that: The invention comprises a stirring shell (1) and a water inlet pipe (3) at the upper end of the stirring shell (1); a stirring shaft (12) is rotatably arranged in the stirring shell (1); an inlet hole is provided at the upper end of the stirring shaft (12); the water inlet pipe (3) and the inlet hole are connected; stirring plates (14) are arranged around the stirring shaft (12); an outlet hole (13) is provided on the shaft body of the stirring shaft (12) for liquid to flow into the stirring shell (1); a driving component for driving the stirring shaft (12) to rotate is arranged at the bottom of the stirring shell (1); a mixing drum (11) is rotatably arranged inside the stirring shell (1); a linkage component for driving the mixing drum (11) to rotate is arranged between the mixing drum (11) and the stirring shell (1); and a discharge device is connected at the bottom of the stirring shell (1).

2. A wastewater treatment microbial fermentation device according to claim 1, characterized in that: The linkage assembly comprises a driving gear (35) fixedly connected to the stirring shaft (12); a stirring shell (1) extends from the upper end of the mixing cylinder (11); a circle of driven meshing ring (37) is fixedly arranged on the upper end of the mixing cylinder (11); a linkage gear (36) meshing with the driving gear (35) is rotatably arranged on the upper end of the stirring shell (1); and the linkage gear (36) is simultaneously meshed with the driven meshing ring (37).

3. A wastewater treatment microbial fermentation device according to claim 2, characterized in that: An inclined ring (16) is fixedly arranged inside the mixing cylinder (11), and an inclined surface is provided on the inclined ring (16). A plurality of groups of step plates (17) are fixedly arranged on the inclined surface of the inclined ring (16), and a wave groove (18) is provided on the upper end of each of the step plates (17). The inflow hole on the stirring shaft (12) is obliquely provided on the stirring shaft (12).

4. A wastewater treatment microbial fermentation device according to claim 3, characterized in that: The stirring plate (14) is connected to the stirring shaft (12) in an inclined and fixed manner, the outflow holes are provided in multiple groups and are evenly distributed on the stirring shaft (12), and the inclined rings (16) are provided in multiple groups and are evenly distributed inside the mixing barrel (11).

5. A wastewater treatment microbial fermentation device according to claim 4, characterized in that: A sealing ring (31) is rotatably provided on the upper end of the stirring shaft (12), and the water inlet pipe (3) is fixedly connected to the sealing ring (31).

6. A wastewater treatment microbial fermentation device according to claim 1, characterized in that: The stirring plate (14) is provided with a plurality of water holes (15), and the hole walls of the water holes (15) are provided with flow line grooves opened on the stirring plate (14).

7. A wastewater treatment microbial fermentation device according to claim 1, characterized in that: The discharge device comprises a discharge pipe fixedly connected to the bottom of the stirring shell (1), and a stop valve (33) is fixedly installed on the discharge pipe.

8. The microbial fermentation device for wastewater treatment according to claim 1, characterized in that: The driving assembly comprises a driving motor (34) fixedly connected to the bottom of the stirring shell (1), and the output end of the driving motor (34) is fixedly connected to the bottom of the stirring shaft (12).

9. A wastewater treatment microbial fermentation device according to claim 2, characterized in that: The upper end of the driving gear (35) is provided with a sealing cover (2) mounted on the upper end of the mixing barrel (11), and sealing rings are fixedly provided on the bottom of the surrounding areas of the sealing cover (2). The surrounding areas of the sealing cover (2) are plugged into the mixing barrel (11), and the middle part of the sealing cover (2) is rotatably connected to the stirring shaft (12).

10. A wastewater treatment microbial fermentation device according to claim 9, characterized in that: A rotating column (21) is rotatably arranged on the side wall of the sealing cover (2), and a locking column (23) is fixedly arranged on the rotating column (21). The two sides of the rotating rod (22) are fixedly arranged. The sealing cover (2) is provided with a first sliding groove (24), and the mixing barrel (11) is provided with a second sliding groove (25). The first sliding groove (24) and the second sliding groove (25) are spliced ​​into a circular groove. The locking column (23) is slidably connected in the first sliding groove (24) and the second sliding groove (25). The middle parts of the first sliding groove (24) and the second sliding groove (25) are fixedly provided with fixed magnets, and the locking column (23) is made of metal material.

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