Anaerobic reaction device for sewage treatment

Abstract

The utility model discloses an anaerobic reaction device for sewage treatment, which comprises a shell, an inner hollow shaft is rotatably mounted in the shell through a bearing, a first fixing plate is fixed on the outer wall of the inner hollow shaft close to the top in the shell, an inner hollow rod is fixed on the outer wall of the inner hollow shaft close to the bottom in the shell, and a second fixing plate is fixed on the outer wall of the inner hollow shaft close to the bottom in the shell. According to the anaerobic reaction device for sewage treatment, by starting a motor, a first stirring rod and a second stirring rod can rotate around the central axis of an inner hollow shaft, and the first stirring rod and the second stirring rod can also rotate around the central axis of a first solid shaft in opposite directions, so that the stirring diversity is improved; the activated sludge and the sewage can be fully mixed together, the sewage treatment efficiency is improved, the activated sludge at the bottom in the shell can be pumped to the top in the shell by starting the sludge pump, and full mixing of the activated sludge and the sewage is further facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an anaerobic reaction device for sewage treatment. Background Art

[0002] Anaerobic biological treatment of wastewater is a common sewage treatment method. Anaerobic organisms transform various complex organic matter in the wastewater to obtain degradable substances, thereby achieving the effect of decontamination. The anaerobic biological treatment of wastewater needs to be carried out under oxygen-free conditions.

[0003] However, existing anaerobic reactors for sewage treatment are equipped with a stirring mechanism to mix sewage with activated sludge (activated sludge is a general term for microbial communities and the organic and inorganic substances they are attached to), thereby increasing the contact area between the activated sludge and sewage and enabling the activated sludge to accelerate the efficiency of sewage treatment. However, the stirring mechanism inside the anaerobic reactor only stirs in one direction, which is not conducive to the full mixing of the activated sludge and sewage, thus affecting the sewage treatment efficiency.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original anaerobic reaction device for sewage treatment. Utility Model Content

[0005] The purpose of the utility model is to provide an anaerobic reaction device for sewage treatment to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anaerobic reaction device for sewage treatment, comprising a shell, an inner hollow shaft is rotatably installed inside the shell through a bearing, a first fixed plate is fixed to the outer wall of the inner hollow shaft near the top inside the shell, an inner hollow rod is fixed to the outer wall of the inner hollow shaft near the bottom inside the shell, a second fixed plate is fixed to the outer wall of the inner hollow shaft near the middle part inside the shell, a first solid shaft is rotatably installed between the first fixed plate and the second fixed plate through a bearing, a first stirring rod is fixed to the outer wall of the first solid shaft, the lower end of the first solid shaft is located inside the second fixed plate and a first bevel gear is fixed thereto, the upper end of the first solid shaft is located above the first fixed plate and a first full gear is fixed thereto, a gear ring is fixed to the top inside the shell, the inner side of the gear ring is aligned with the first full gear The side of the wheel is meshed with each other, and a second solid shaft is rotatably installed between the second fixed plate and the inner hollow rod through a bearing, and a second stirring rod is fixed to the outer wall of the second solid shaft, and the upper end of the second solid shaft is located at the inside of the second fixed plate and a second bevel gear is fixed thereto, and the inner side of the second fixed plate is rotatably installed with a third solid shaft through a bearing, and the end of the third solid shaft is fixed with a third bevel gear, and the top of one side of the third bevel gear is meshed with one side of the bottom of the first bevel gear, and the bottom of one side of the third bevel gear is meshed with one side of the top of the second bevel gear. A motor is fixed on the top of the housing, and a second full gear is fixed on the output end of the top of the motor, and one side of the second full gear is meshed with one side of the third full gear, and the inner wall of the third full gear is fixedly connected to the outer wall of the inner hollow shaft.

[0007] Preferably, through holes are provided at equal intervals at the bottom of the inner hollow rod, a sludge pump is fixed on the top of the shell, a first pipe is provided at the feed end of the top of the sludge pump, the inner side of the end of the first pipe is rotatably connected to the outer side of the upper end of the inner hollow shaft through a sealed bearing, and a second pipe is provided at the discharge end of the bottom of the sludge pump, and the lower end of the second pipe passes through the top of the shell.

[0008] Preferably, a vacuum pump is fixed on the outside of the shell, a third pipe is provided at the air inlet end of the vacuum pump, the end of the third pipe passes through the top of one side of the shell, a fourth pipe is provided at the air outlet end of the vacuum pump, and an electromagnetic valve is installed on the third pipe.

[0009] Preferably, a sewage pipe is provided at the bottom of one side of the shell, and an electromagnetic valve is installed on the sewage pipe.

[0010] Preferably, an exhaust pipe is provided on the top of one side of the shell, and an electromagnetic valve is installed on the exhaust pipe.

[0011] Preferably, a liquid inlet pipe is provided at the top of one side of the shell and is located below the exhaust pipe, and an electromagnetic valve is installed on the liquid inlet pipe.

[0012] Preferably, an activated sludge injection pipe is provided on one side of the top of the shell, and an electromagnetic valve is installed on the activated sludge injection pipe.

[0013] Preferably, the first stirring rod and the second stirring rod are both designed as sinusoidal image structures.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the anaerobic reaction device for sewage treatment can rotate the first stirring rod and the second stirring rod around the central axis of the inner hollow shaft by starting the motor, and can also rotate the first stirring rod and the second stirring rod around the central axis of the first solid shaft in opposite directions, thereby improving the diversity of stirring, so that the activated sludge and sewage can be fully mixed together, and the efficiency of sewage treatment is improved. By starting the sludge pump, the activated sludge at the bottom of the shell can be pumped to the top of the shell, which is further conducive to the full mixing between the activated sludge and sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0017] Figure 3 This is a schematic diagram of the first all-gear installation structure viewed from above in the present utility model;

[0018] Figure 4 This is a schematic diagram of the second full gear installation structure viewed from above in the present invention;

[0019] Figure 5 This is a schematic diagram of the top-down cross-sectional installation structure of the first pipeline of the present invention.

[0020] In the figure: 1. Shell; 2. Inner hollow shaft; 3. First fixed plate; 4. Second fixed plate; 5. Inner hollow rod; 6. First solid shaft; 7. First stirring rod; 8. First bevel gear; 9. First full gear; 10. Gear ring; 11. Second solid shaft; 12. Second stirring rod; 13. Second bevel gear; 14. Third solid shaft; 15. Third bevel gear; 16. Motor; 17. Second full gear; 18. Third full gear; 19. Through hole; 20. First pipeline; 21. Sludge pump; 22. Second pipeline; 23. Vacuum pump; 24. Third pipeline; 25. Fourth pipeline; 26. Drain pipe; 27. Exhaust pipe; 28. Liquid inlet pipe; 29. ​​Activated sludge injection pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5 The utility model provides a technical solution: an anaerobic reaction device for sewage treatment, comprising a shell 1, an inner hollow shaft 2 is rotatably mounted inside the shell 1 through a bearing, a first fixing plate 3 is fixed to the outer wall of the inner hollow shaft 2 near the top of the shell 1, an inner hollow rod 5 is fixed to the outer wall of the inner hollow shaft 2 near the bottom of the shell 1, a second fixing plate 4 is fixed to the outer wall of the inner hollow shaft 2 near the middle of the shell 1, a first solid shaft 6 is rotatably mounted between the first fixing plate 3 and the second fixing plate 4 through a bearing, and the outer wall of the first solid shaft 6 is fixed to the outer wall of the inner hollow shaft 2 near the middle of the shell 1. The first stirring rod 7 is fixed to the wall, the lower end of the first solid shaft 6 is located inside the second fixed plate 4 and a first bevel gear 8 is fixed thereto, the upper end of the first solid shaft 6 is located above the first fixed plate 3 and a first full gear 9 is fixed thereto, a gear ring 10 is fixed to the top of the housing 1, the inner side of the gear ring 10 is meshed with the side of the first full gear 9, a second solid shaft 11 is rotatably installed between the second fixed plate 4 and the inner hollow rod 5 through a bearing, a second stirring rod 12 is fixed to the outer wall of the second solid shaft 11, and the upper end of the second solid shaft 11 is located above the first fixed plate 3 and a first full gear 9 is fixed thereto, A second bevel gear 13 is fixed to the inside of the second fixed plate 4, and a third solid shaft 14 is rotatably installed on the inner side of the second fixed plate 4 through a bearing. A third bevel gear 15 is fixed to the end of the third solid shaft 14, and the top of one side of the third bevel gear 15 is meshed with one side of the bottom of the first bevel gear 8, and the bottom of one side of the third bevel gear 15 is meshed with one side of the top of the second bevel gear 13. A motor 16 is fixed to the top of the housing 1, and a second full gear 17 is fixed to the output end of the top of the motor 16. One side of the second full gear 17 is meshed with one side of the third full gear 18. The inner wall of the third full gear 18 is fixedly connected to the outer wall of the inner hollow shaft 2. By starting the motor 16, the first stirring rod 7 and the second stirring rod 12 can be rotated around the central axis of the inner hollow shaft 2, and the first stirring rod 7 and the second stirring rod 12 can be rotated in opposite directions around the central axis of the first solid shaft 6, thereby improving the diversity of stirring, so that the activated sludge and sewage can be fully mixed together, and the efficiency of sewage treatment is improved.

[0023] Through holes 19 are arranged at equal intervals at the bottom of the inner hollow rod 5, a sludge pump 21 is fixed to the top of the shell 1, a first pipe 20 is provided at the feed end of the top of the sludge pump 21, the inner side of the end of the first pipe 20 is rotatably connected to the outer side of the upper end of the inner hollow shaft 2 through a sealed bearing, a second pipe 22 is provided at the discharge end of the bottom of the sludge pump 21, the lower end of the second pipe 22 passes through the top of the shell 1, and by starting the sludge pump 21, the activated sludge at the bottom of the shell 1 can be pumped to the top of the shell 1, which is conducive to the sufficient mixing between the activated sludge and sewage.

[0024] A vacuum pump 23 is fixed to the outside of the shell 1. A third pipe 24 is provided at the air inlet end of the vacuum pump 23. The end of the third pipe 24 passes through the top of one side of the shell 1. A fourth pipe 25 is provided at the air outlet end of the vacuum pump 23. An electromagnetic valve is installed on the third pipe 24. The vacuum pump 23 can be used to evacuate the interior of the shell 1, so that anaerobic reaction can be carried out inside the shell 1.

[0025] A sewage pipe 26 is provided at the bottom of one side of the shell 1 , and an electromagnetic valve is installed on the sewage pipe 26 , through which the sludge inside the shell 1 can be discharged.

[0026] An exhaust pipe 27 is provided at the top of one side of the shell 1 , and an electromagnetic valve is installed on the exhaust pipe 27 , so that methane and other gases generated inside the shell 1 can be discharged through the exhaust pipe 27 .

[0027] A liquid inlet pipe 28 is provided at the top of one side of the shell 1 below the exhaust pipe 27 , and an electromagnetic valve is installed on the liquid inlet pipe 28 , so that sewage can be transported to the interior of the shell 1 through the liquid inlet pipe 28 .

[0028] An activated sludge injection pipe 29 is provided on one side of the top of the shell 1 , and an electromagnetic valve is installed on the activated sludge injection pipe 29 , so that activated sludge can be transported into the interior of the shell 1 through the activated sludge injection pipe 29 .

[0029] The first stirring rod 7 and the second stirring rod 12 are both designed as sinusoidal image structures, which increases the stirring area and is conducive to sufficient mixing between the activated sludge and the sewage.

[0030] Working principle: When using the anaerobic reaction device for sewage treatment, the interior of the housing 1 is first evacuated via the vacuum pump 23 and the third pipe 24, and the third pipe 24 is closed via the electromagnetic valve. Then, sewage is pumped into the interior of the housing 1 via the liquid inlet pipe 28 and an external water pump, and the liquid inlet pipe 28 is closed via the electromagnetic valve. Then, activated sludge is pumped into the interior of the housing 1 via the activated sludge injection pipe 29 and an external sludge pump, and the activated sludge injection pipe 29 is closed via the electromagnetic valve.

[0031] Then start the motor 16. At this time, the motor 16 drives the inner hollow shaft 2 to rotate through the second full gear 17 and the third full gear 18. The inner hollow shaft 2 drives the first fixed plate 3, the second fixed plate 4, the inner hollow rod 5, the first solid shaft 6, the first stirring rod 7, the first bevel gear 8, the first full gear 9, the second solid shaft 11, the second stirring rod 12, the second bevel gear 13, the third solid shaft 14 and the third bevel gear 15 to rotate simultaneously, so that the first stirring rod 7 and the second stirring rod 12 rotate around the central axis of the inner hollow shaft 2. Since the first full gear 9 and the gear ring 10 are meshed and connected, The first full gear 9 and the first solid shaft 6 rotate, causing the first stirring rod 7 to rotate around the central axis of the first solid shaft 6. At the same time, the first solid shaft 6 drives the second solid shaft 11 and the second stirring rod 12 to rotate in the opposite direction through the first bevel gear 8, the third bevel gear 15, the third solid shaft 14 and the second bevel gear 13, so that the second stirring rod 12 and the first stirring rod 7 rotate around the central axis of the first solid shaft 6 and the second solid shaft 11 in opposite directions, thereby improving the diversity of stirring, so that the activated sludge and sewage can be fully mixed together, and the efficiency of sewage treatment is improved;

[0032] By starting the sludge pump 21, suction is generated at the through hole 19, so that the activated sludge at the bottom of the shell 1 is pumped through the through hole 19, the inner hollow rod 5, the inner hollow shaft 2 and the first pipe 20 to the second pipe 22 and enters the top of the shell 1, which is conducive to the full mixing of the activated sludge and sewage.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anaerobic reaction device for sewage treatment, comprising a housing (1), characterized in that: An inner hollow shaft (2) is rotatably mounted inside the housing (1) via a bearing, a first fixed plate (3) is fixed to the outer wall of the inner hollow shaft (2) near the top of the housing (1), an inner hollow rod (5) is fixed to the outer wall of the inner hollow shaft (2) near the bottom of the housing (1), a second fixed plate (4) is fixed to the outer wall of the inner hollow shaft (2) near the middle of the housing (1), a first solid shaft (6) is rotatably mounted between the first fixed plate (3) and the second fixed plate (4), a first stirring rod (7) is fixed to the outer wall of the first solid shaft (6), a first bevel gear (8) is fixed to the lower end of the first solid shaft (6) located inside the second fixed plate (4), a first full gear (9) is fixed to the upper end of the first solid shaft (6) located above the first fixed plate (3), a gear ring (10) is fixed to the top of the housing (1), the inner side of the gear ring (10) is meshed with the side of the first full gear (9), the second fixed plate (4) and the inner hollow rod (5) are fixed to the inner wall of the housing (1), and the inner side of the gear ring (10) is meshed with the side of the first full gear (9). ) is rotatably mounted between the housing (1) and the housing (2) via a bearing, a second stirring rod (12) is fixed to the outer wall of the second solid shaft (11), the upper end of the second solid shaft (11) is located inside the second fixed plate (4) and a second bevel gear (13) is fixed thereto, a third solid shaft (14) is rotatably mounted on the inner side of the second fixed plate (4) via a bearing, a third bevel gear (15) is fixed to the end of the third solid shaft (14), a top of one side of the third bevel gear (15) is meshedly connected with one side of the bottom of the first bevel gear (8), a bottom of one side of the third bevel gear (15) is meshedly connected with one side of the top of the second bevel gear (13), a motor (16) is fixed to the top of the housing (1), a second full gear (17) is fixed to the output end of the top of the motor (16), one side of the second full gear (17) is meshedly connected with one side of the third full gear (18), and the inner wall of the third full gear (18) is fixedly connected to the outer wall of the inner hollow shaft (2).

2. The anaerobic reaction device for sewage treatment according to claim 1, characterized in that: Through holes (19) are provided at equal intervals at the bottom of the inner hollow rod (5), a sludge pump (21) is fixed to the top of the housing (1), a first pipe (20) is provided at the feed end of the top of the sludge pump (21), the inner side of the end of the first pipe (20) is rotatably connected to the outer side of the upper end of the inner hollow shaft (2) through a sealing bearing, a second pipe (22) is provided at the discharge end of the bottom of the sludge pump (21), and the lower end of the second pipe (22) passes through the top of the housing (1).

3. The anaerobic reaction device for sewage treatment according to claim 1, characterized in that: A vacuum pump (23) is fixed on the outside of the housing (1), a third pipe (24) is provided at the air inlet end of the vacuum pump (23), an end of the third pipe (24) passes through the top of one side of the housing (1), a fourth pipe (25) is provided at the air outlet end of the vacuum pump (23), and an electromagnetic valve is installed on the third pipe (24).

4. The anaerobic reaction device for sewage treatment according to claim 1, characterized in that: A sewage pipe (26) is provided at the bottom of one side of the shell (1), and an electromagnetic valve is installed on the sewage pipe (26).

5. The anaerobic reaction device for sewage treatment according to claim 1, characterized in that: An exhaust pipe (27) is provided at the top of one side of the housing (1), and an electromagnetic valve is installed on the exhaust pipe (27).

6. The anaerobic reaction device for sewage treatment according to claim 5, characterized in that: A liquid inlet pipe (28) is provided at the top of one side of the housing (1) below the exhaust pipe (27), and an electromagnetic valve is installed on the liquid inlet pipe (28).

7. The anaerobic reaction device for sewage treatment according to claim 1, characterized in that: An activated sludge injection pipe (29) is provided on one side of the top of the shell (1), and an electromagnetic valve is installed on the activated sludge injection pipe (29).

8. The anaerobic reaction device for sewage treatment according to claim 1, characterized in that: The first stirring rod (7) and the second stirring rod (12) are both designed as sinusoidal image structures.

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