Internal aeration device of vertical aerobic fermentation tank

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a vertical aerobic fermentation tank internal aeration device which comprises a fermentation tank, a motor is fixedly installed on the upper portion of the fermentation tank, an output shaft of the motor is movably connected to the upper portion of an inner cavity of the fermentation tank in a sleeved mode, and a first gear is fixedly connected to the bottom end of the output shaft of the motor in a sleeved mode. The outer edge of the first gear is uniformly meshed with a second gear, the middle of the second gear is fixedly sleeved with a ventilation shaft, the ventilation shaft is movably sleeved with an inner cavity of the fermentation tank, pressurizing valves are uniformly and fixedly installed on the upper portion of the fermentation tank and located on the periphery of the motor, and the bottoms of the pressurizing valves are movably connected with the ventilation shaft; the aeration device inflates sewage and stirs the sewage, the dissolved oxygen rate in the sewage is increased, microbial reproduction is accelerated, the purification rate is improved, a piston is arranged in the aeration pipe to prevent blockage caused by invasion of the sewage, the durability of the device is improved, the heating pipe enables the device to maintain constant temperature, and the fermentation reaction is accelerated. The device working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an internal aeration device of a vertical aerobic fermentation tank. Background Art

[0002] In modern life, sewage treatment is a necessary project to ensure a good living environment for residents. Sewage treatment refers to the process of purifying sewage to make it meet the water quality requirements for drainage or reuse. According to the source of sewage, sewage treatment is generally divided into industrial sewage treatment and domestic sewage treatment. Domestic sewage treatment generally includes filtration, aeration, sedimentation and other steps. Aeration refers to the process of forcing oxygen in the air to transfer to the liquid. The purpose of aeration is to allow sewage to obtain dissolved oxygen and ensure that the microorganisms in the sewage have sufficient oxygen when decomposing organic matter, which is conducive to microbial purification of sewage.

[0003] In the prior art, when aerobic fermentation is carried out, it is necessary to inflate the inner cavity of the fermentation tank through an aeration device, but the introduction of gas alone cannot effectively improve the fermentation rate of microorganisms. Since the aeration pipe of the aeration device is in contact with the sewage in the fermentation tank, when the aeration device is not used, the sewage in the fermentation tank often enters the aeration pipe, causing the aeration pipe to be blocked. Long-term blockage is likely to cause damage to the aeration equipment. Due to the low temperature in winter, the activity of microorganisms is low, which slows down the evolution rate of sewage. Therefore, in order to solve the above problems, the utility model proposes an internal aeration device for a vertical aerobic fermentation tank. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an internal aeration device for a vertical aerobic fermentation tank. The aeration device stirs the sewage while aerating it, thereby increasing the dissolved oxygen rate in the sewage, allowing the microorganisms to obtain more oxygen, which is beneficial to the reproduction of the microorganisms and accelerating the purification rate of organic matter in the sewage. A piston is provided in the aeration pipe to prevent the sewage in the fermentation tank from entering the aeration pipe and causing blockage, thereby improving the durability of the device. The heating pipe heats the inner cavity of the fermentation tank to maintain a constant temperature, thereby improving the activity of the microorganisms, which is beneficial to accelerating the fermentation reaction in the fermentation tank, thereby improving the working efficiency of the device.

[0005] The utility model provides the following technical scheme: an internal aeration device of a vertical aerobic fermentation tank, comprising a fermentation tank, a motor is fixedly installed on the upper part of the fermentation tank, the motor output shaft is movably sleeved on the upper part of the inner cavity of the fermentation tank, a gear one is fixedly sleeved on the bottom end of the motor output shaft, a gear two is evenly meshed on the outer extension of the gear one, there are three gears two, a ventilation shaft is fixedly sleeved on the middle part of the gear two, the ventilation shaft is movably sleeved in the inner cavity of the fermentation tank, a pressure valve is evenly fixedly installed on the upper part of the fermentation tank and around the motor, there are three pressure valves, the bottom of the pressure valve is movably connected to the ventilation shaft, an air pipe is fixedly installed on the top of the pressure valve, and aeration devices are evenly fixedly installed on the three ventilation shafts and are staggered with each other.

[0006] Preferably, the aeration device comprises an aeration tube, the bottom of the inner cavity of the aeration tube is evenly provided with grooves, the number of the grooves is five, the upper part of the inner cavity of the aeration tube is evenly provided with through holes, the grooves correspond to the upper and lower positions of the through holes.

[0007] Preferably, a piston is movably sleeved in the through hole, the bottom of the piston is movably sleeved in the groove, a spring is fixedly installed at the bottom of the groove, and the top of the spring is fixedly installed at the bottom of the piston.

[0008] Preferably, valve one is fixedly sleeved on the right side of the fermentation tank, pipe one is fixedly installed on the right side of the valve one, valve two is fixedly sleeved on the right side of the fermentation tank and below valve one, pipe two is fixedly installed on the right side of valve two, valve three is fixedly sleeved on the bottom of the fermentation tank, and pipe three is fixedly installed on the bottom of valve three.

[0009] Preferably, a heating tube is fixedly installed in the inner wall of the fermentation tank cavity, a control panel is fixedly installed at the front of the fermentation tank, and base frames are evenly fixedly installed at the bottom of the fermentation tank and around the valve, and the number of the base frames is six.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The motor drives the gears to rotate, and the gears drive the three ventilation shafts to rotate, so that the aeration device on the ventilation shaft stirs the sewage when aerating the sewage. At the same time, the staggered aeration devices make the stirring more complete, increase the dissolved oxygen rate in the sewage, and increase the oxygen content in the sewage, so that the microorganisms can obtain more oxygen, which is beneficial to the reproduction of microorganisms and accelerates the purification rate of organic matter in the sewage.

[0012] 2. By setting a piston in the aeration pipe, the pressurized air lifts the piston under the action of the pressure valve, and air can enter the fermentation tank. When the pressure valve is closed, the pressurized air disappears, and the piston returns to its original position under the action of the spring to close the through hole, thereby preventing sewage in the fermentation tank from entering the aeration pipe and causing blockage of the aeration pipe, preventing equipment damage due to blockage, and effectively improving the durability of the aeration device.

[0013] 3. By arranging a heating pipe in the inner wall of the fermentation tank cavity, when the aeration device aerates the sewage in the fermentation tank, the heating pipe is heated to maintain the inner cavity of the fermentation tank at a constant temperature, thereby improving the activity of the microorganisms, which is beneficial to speed up the fermentation reaction in the fermentation tank, avoiding the microorganisms from being affected by the environment and slowing down the sewage purification rate of the device, thereby improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the exterior structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the transmission structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the aeration structure of the utility model.

[0018] In the figure: 1. fermentation tank; 2. motor; 3. gear 1; 4. gear 2; 5. ventilation shaft; 6. pressure valve; 7. gas pipe; 8. aeration device; 81. aeration pipe; 82. groove; 83. through hole; 9. piston; 10. spring; 11. valve 1; 12. pipe 1; 13. valve 2; 14. pipe 2; 15. valve 3; 16. pipe 3; 17. heating pipe; 18. control panel; 19. base frame. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4A vertical aerobic fermentation tank internal aeration device comprises a fermentation tank 1, a motor 2 is fixedly installed on the upper part of the fermentation tank 1, the output shaft of the motor 2 is movably sleeved on the upper part of the inner cavity of the fermentation tank 1, a gear 1 3 is fixedly sleeved on the bottom end of the output shaft of the motor 2, and a gear 2 4 is evenly meshed on the outer extension of the gear 1 3, and the number of the gears 2 4 is three, and a ventilation shaft 5 is fixedly sleeved in the middle of the gear 2 4, and the ventilation shaft 5 is movably sleeved in the inner cavity of the fermentation tank 1, the motor 2 drives the gear 1 3 to rotate, the gear 1 3 drives the gear 2 4 to rotate, and the gear 2 4 drives the ventilation shaft 5 to rotate, and the upper part of the fermentation tank 1 and around the motor 2 are evenly fixedly installed with There are three pressure boosting valves 6, the bottom of the pressure boosting valve 6 is movably connected to the ventilation shaft 5, and an air delivery pipe 7 is fixedly installed on the top of the pressure boosting valve 6. Aeration devices 8 are evenly fixedly installed on the three ventilation shafts 5 and are staggered with each other. The rotation of the ventilation shaft 5 drives the aeration device 8 to rotate. The aeration device 8 on the ventilation shaft 5 aerates the sewage and stirs the sewage at the same time. The staggered aeration devices 8 make the stirring more sufficient, increase the dissolved oxygen rate in the sewage, and improve the oxygen content in the sewage, so that the microorganisms obtain more oxygen, which is beneficial to the reproduction of the microorganisms and accelerates the purification rate of organic matter in the sewage;

[0021] The aeration device 8 includes an aeration tube 81, and grooves 82 are evenly provided in the bottom of the inner cavity of the aeration tube 81. The number of grooves 82 is five. A through hole 83 is evenly provided in the upper part of the inner cavity of the aeration tube 81. The grooves 82 correspond to the upper and lower positions of the through holes 83. A piston 9 is movably sleeved in the through hole 83. The bottom of the piston 9 is movably sleeved in the groove 82. A spring 10 is fixedly installed at the bottom of the groove 82. The top of the spring 10 is fixedly installed at the bottom of the piston 9. The pressure valve 6 takes in air through the air delivery pipe 7 and pressurizes the air into the ventilation shaft 5. The pressurized gas passes through the through hole 83. The inner cavity of the air shaft 5 enters the inner cavity of the aeration pipe 81, and the piston 9 is lifted up under the action of air pressure to open the through hole 83, and the pressurized air enters the inner cavity of the fermentation tank 1 to ferment the sewage therein. At this time, the spring 10 in the groove 82 generates elastic potential energy. After the fermentation is completed, the pressurizing valve 6 is closed to stop the pressurized gas delivery. The piston 9 blocks the through hole 83 again under the action of the spring 10, so as to prevent the sewage in the fermentation tank from entering the aeration pipe 81 and causing blockage, thereby preventing the equipment from being damaged due to the blockage, and effectively improving the durability of the aeration device 8.

[0022] A valve 11 is fixedly sleeved on the right side of the fermentation tank 1, a pipe 12 is fixedly installed on the right side of the valve 11, a valve 2 13 is fixedly sleeved on the right side of the fermentation tank 1 and located below the valve 11, a pipe 2 14 is fixedly installed on the right side of the valve 2 13, a valve 3 15 is fixedly sleeved on the bottom of the fermentation tank 1, a pipe 3 16 is fixedly installed on the bottom of the valve 3 15, a heating pipe 17 is fixedly installed in the inner wall of the fermentation tank 1 cavity, and the heating pipe 17 starts to heat during fermentation, a control panel 18 is fixedly installed on the front of the fermentation tank 1, and a base frame is evenly fixedly installed on the bottom of the fermentation tank 1 and located around the valve 3 15 19, there are six base frames 19, open valve 11 to pass the sewage to be treated into the inner cavity of the fermentation tank 1 through pipe 12, after the fermentation is completed, open valve 2 13 to allow the fermented liquid to be discharged through pipe 2 14, open valve 3 15 to allow the precipitate produced by the fermentation to be discharged from pipe 3 16, and the heating tube 17 heats the inner cavity of the fermentation tank 1 to maintain a constant temperature, thereby increasing the activity of the microorganisms, which is beneficial to speeding up the fermentation reaction in the fermentation tank 1, avoiding the microorganisms from being affected by the environment so that the rate of sewage purification of the device is slowed down, and the working efficiency of the device is improved.

[0023] Working principle: open valve 11 and pass the sewage to be treated into the inner cavity of fermentation tank 1 through pipe 12, close valve 11 and start motor 2 and pressure valve 6, motor 2 drives gear 13 to rotate, gear 13 drives gear 24 to rotate, gear 24 drives ventilation shaft 5 to rotate, ventilation shaft 5 drives aeration device 8 to rotate, pressure valve 6 takes in air through air pipe 7 and pressurizes air into ventilation shaft 5, pressurized gas enters the inner cavity of aeration pipe 81 through the inner cavity of ventilation shaft 5, and piston 9 is lifted up under the action of air pressure to open through hole 83 The pressurized air enters the inner cavity of the fermentation tank 1 so that the sewage therein can be fermented. At this time, the spring 10 in the groove 82 generates elastic potential energy. The heating tube 17 starts to heat during fermentation, so that the inner cavity of the fermentation tank 1 maintains a constant temperature, which is beneficial to the fermentation reaction. After the fermentation is completed, the pressurizing valve 6 is closed to stop the pressurized gas delivery. The piston 9 re-blocks the through hole 83 under the action of the spring 10, and the valve two 13 is opened to allow the fermented liquid to be discharged through the pipe two 14. The valve three 15 is opened to allow the sediment produced by the fermentation to be discharged from the pipe three 16.

Claims

1. A vertical aerobic fermentation tank internal aeration device, comprising a fermentation tank (1), characterized in that: A motor (2) is fixedly mounted on the upper part of the fermentation tank (1), and an output shaft of the motor (2) is movably sleeved on the upper part of the inner cavity of the fermentation tank (1). A gear 1 (3) is fixedly sleeved on the bottom end of the output shaft of the motor (2), and a gear 2 (4) is uniformly meshed on the outer extension of the gear 1 (3). There are three gears 2 (4). A ventilation shaft (5) is fixedly sleeved on the middle part of the gear 2 (4), and the ventilation shaft (5) is movably sleeved in the inner cavity of the fermentation tank (1). A pressure valve (6) is uniformly fixedly mounted on the upper part of the fermentation tank (1) and located around the motor (2). There are three pressure valves (6). The bottom of the pressure valve (6) is movably connected to the ventilation shaft (5), and an air delivery pipe (7) is fixedly mounted on the top of the pressure valve (6). Aeration devices (8) are uniformly fixedly mounted on the three ventilation shafts (5) and are mutually staggered.

2. The internal aeration device of a vertical aerobic fermentation tank according to claim 1, characterized in that: The aeration device (8) comprises an aeration tube (81), the bottom of the inner cavity of the aeration tube (81) is evenly provided with grooves (82), the number of the grooves (82) is five, the upper part of the inner cavity of the aeration tube (81) is evenly provided with through holes (83), the upper and lower positions of the grooves (82) and the through holes (83) correspond.

3. The internal aeration device of a vertical aerobic fermentation tank according to claim 2, characterized in that: A piston (9) is movably sleeved in the through hole (83), and the bottom of the piston (9) is movably sleeved in the groove (82). A spring (10) is fixedly installed at the bottom of the groove (82), and the top end of the spring (10) is fixedly installed at the bottom end of the piston (9).

4. The internal aeration device of a vertical aerobic fermentation tank according to claim 1, characterized in that: A valve one (11) is fixedly sleeved on the right side of the fermentation tank (1), a pipe one (12) is fixedly installed on the right side of the valve one (11), a valve two (13) is fixedly sleeved on the right side of the fermentation tank (1) and located below the valve one (11), a pipe two (14) is fixedly installed on the right side of the valve two (13), a valve three (15) is fixedly sleeved on the bottom of the fermentation tank (1), a pipe three (16) is fixedly installed on the bottom of the valve three (15).

5. The internal aeration device of a vertical aerobic fermentation tank according to claim 4, characterized in that: A heating tube (17) is fixedly installed in the inner wall of the fermentation tank (1), a control panel (18) is fixedly installed at the front of the fermentation tank (1), and base frames (19) are evenly fixedly installed at the bottom of the fermentation tank (1) and around the valve three (15), and the number of the base frames (19) is six.

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