Efficient sewage treatment aeration tank

Abstract

The utility model belongs to the technical field of sewage treatment, and provides an efficient sewage treatment aeration tank which is characterized by comprising a treatment tank, an aeration device, a stirring shaft, a stirring assembly and a driving mechanism, and the driving mechanism comprises a first motor, a driving shaft and two worm wheels; two sections of spiral teeth matched with the worm wheels are arranged on the driving shaft, the two worm wheels are respectively arranged on the two stirring shafts and are in meshed connection with the spiral teeth, and the driving shaft extends into the transmission box body and is rotationally connected with the inner wall of the transmission box body. The stirring assembly is used for stirring sewage in the treatment tank, so that the flowability of the sewage in the treatment tank is improved, the flowing of the sewage is accelerated, the sewage is in full contact with oxygen in the air and oxygen released by the aeration device, and the contact time of the sewage and the oxygen is indirectly prolonged; further, the aeration sewage treatment effect is improved to a certain extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a high-efficiency sewage treatment aeration tank. Background Art

[0002] Aeration tanks are biochemical reactors designed according to the characteristics of microorganisms. The degree of degradation of organic pollutants mainly depends on the aeration reaction conditions designed by people. Aeration tanks use the activated sludge method to treat sewage. The aeration tank provides a certain sewage retention time in the tank to meet the oxygen required by aerobic microorganisms and the mixing conditions for full contact between sewage and activated sludge.

[0003] The existing aeration tank transports oxygen to the sewage pool for oxygen supply. The oxygen rises due to buoyancy and contacts the sewage for aeration treatment. Since the aeration equipment in the pool is fixed, the sewage inside the pool has poor fluidity, which affects the effect of aerated sewage treatment. Utility Model Content

[0004] The utility model provides a high-efficiency sewage treatment aeration tank, aiming to solve the problem that the aeration equipment of the existing aeration tank is fixed, which leads to poor sewage fluidity inside the tank, thus affecting the effect of aerated sewage treatment.

[0005] The utility model is implemented as follows: a high-efficiency sewage treatment aeration tank comprises a treatment tank, an aeration device, a stirring shaft, a stirring component and a driving mechanism, wherein the aeration device is arranged inside the treatment tank and is used for aerating the sewage in the treatment tank; the stirring shaft is rotatably installed inside the treatment tank, and the stirring component is connected to the stirring shaft; one end of the stirring shaft passes through the side wall of the treatment tank and is connected to the driving mechanism; the driving mechanism comprises a first motor, a driving shaft and two worm gears; the driving shaft is provided with two sections of helical teeth matching the worm gears, the two worm gears are respectively installed on the two stirring shafts and meshed with the helical teeth, the driving shaft extends into a transmission case and is rotatably connected to the inner wall of the transmission case.

[0006] Optionally, the aeration device includes a fan, a delivery pipe, a branch pipe and an air outlet, the output end of the fan is connected to one end of the delivery pipe, the branch pipe is connected to the delivery pipe, the air outlet is arranged on the branch pipe, and the branch pipe is laid on the bottom of the treatment pool.

[0007] Optionally, the stirring assembly includes a mounting plate and a stirring blade, the mounting plate is fixedly connected to the stirring shaft, and the stirring blade is fixedly connected to the mounting plate.

[0008] Optionally, it also includes a feeding mechanism, which includes a mounting block, a feeding funnel and an electric control valve; the mounting block is arranged on the treatment tank, and the feeding funnel is connected to the mounting block; the electric control valve is installed at the bottom of the feeding funnel, and the electric control valve is used to control the opening and closing of the bottom of the feeding funnel.

[0009] Optionally, a mounting plate is provided on the treatment pool, and a guide rail and a rack are provided on the mounting plate; a groove matching the guide rail is provided on the mounting block, and the mounting block is slidingly connected to the guide rail; a second motor is connected to the mounting block, and a gear is connected to the output end of the second motor, and the gear is meshingly connected to the rack.

[0010] The utility model achieves the beneficial effect of using an aeration device to aerate the sewage in the treatment tank, so that the sewage is fully in contact with oxygen in the air and an aeration reaction occurs with the sewage. At the same time, the driving mechanism drives the stirring shaft to rotate, and the stirring shaft drives the stirring assembly to rotate, and the stirring assembly stirs the sewage inside the treatment tank, thereby improving the fluidity of the sewage inside the treatment tank, accelerating the flow of the sewage, and making the sewage fully contact with oxygen in the air and oxygen released by the aeration device, indirectly prolonging the contact time between the sewage and oxygen, thereby improving the effect of aerated sewage treatment to a certain extent. Compared with the fixed setting of the aeration equipment of the existing aeration tank, the aeration tank with poor sewage fluidity achieves the effect of efficient sewage aeration treatment. The stirring assembly rotating in the opposite direction can produce a stronger turbulent effect, thereby improving the mixing efficiency of the sewage, and making the various components in the sewage more evenly distributed in the entire treatment tank. Turbulence also increases the surface area of ​​the sewage in contact with the air, improves the aeration effect, and more effectively removes harmful substances in the sewage. The stirring assembly rotating in the opposite direction can reduce the deposition of dirt at the bottom of the treatment tank and improve the sewage treatment efficiency. If there is heat in the sewage, stirring in opposite directions can better balance the heat and avoid local overheating or overcooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a high-efficiency sewage treatment aeration tank provided by the utility model;

[0013] Figure 2 It is a top view and cross-sectional structural schematic diagram of a high-efficiency sewage treatment aeration tank provided by the utility model;

[0014] Figure 3 This is a structural schematic diagram of a driving mechanism, a stirring shaft and a stirring assembly of a high-efficiency sewage treatment aeration tank provided by the utility model;

[0015] Figure 4 It is a structural schematic diagram of a treatment tank and an aeration device of a high-efficiency sewage treatment aeration tank provided by the utility model;

[0016] Figure 5 It is a structural schematic diagram of an aeration device for a high-efficiency sewage treatment aeration tank provided by the utility model;

[0017] Figure 6 It is a structural schematic diagram of a stirring assembly of a high-efficiency sewage treatment aeration tank provided by the utility model;

[0018] Figure 7 It is a structural schematic diagram of a driving mechanism of a high-efficiency sewage treatment aeration tank provided by the utility model;

[0019] Figure 8 This is a three-dimensional structural diagram of a high-efficiency sewage treatment aeration tank with a feeding mechanism provided by the utility model;

[0020] Fig. 9 The utility model is a three-dimensional structural schematic diagram of a feeding mechanism of a high-efficiency sewage treatment aeration tank provided by the utility model.

[0021] The reference numerals are as follows:

[0022] 1-treatment tank, 11-transmission housing, 2-aeration device, 21-fan, 22-conveying pipe, 23-branch pipe, 24-air outlet, 3-agitation shaft, 4-agitation assembly, 41-mounting plate, 42-agitation blade, 5-driving mechanism, 51-first motor, 52-driving shaft, 53-worm gear, 54-helical gear, 6-feeding mechanism, 61-mounting block, 62-feeding hopper, 63-electrically controlled valve, 64-second motor, 65-gear, 7-mounting plate, 71-guide rail, 72-rack. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0024] The terms "first" and "second" in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps, operations, components or modules is not limited to the listed steps, operations, components or modules, but may optionally include steps, operations, components or modules that are not listed, or may optionally include other steps, operations, components or modules that are inherent to these processes, methods, products or devices.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] like Figures 1 to 7 As shown, an exemplary embodiment of a high-efficiency sewage treatment aeration tank comprises a treatment tank 1, an aeration device 2, a stirring shaft 3, a stirring assembly 4 and a driving mechanism 5. In the system, the aeration device 2 is used to perform gas aeration treatment on the sewage in the treatment tank 1, so as to facilitate the full contact between oxygen and sewage and the aeration reaction. The stirring shaft 3 is located inside the treatment tank 1, which can rotate and is connected to the stirring assembly 4. One end of the stirring shaft 3 passes through the side wall of the treatment tank 1 and is connected to the driving mechanism 5.

[0027] In actual use, the sewage is directed to the treatment tank 1, and then the aeration device 2 performs aeration treatment on the sewage so that oxygen can fully contact the sewage. At the same time, the driving mechanism 5 drives the stirring shaft 3 to rotate, thereby driving the stirring assembly 4 to rotate.

[0028] The driving mechanism 5 includes a first motor 51, a driving shaft 52 and two worm gears 53. The driving shaft 52 is provided with two sections of helical teeth 54 matching the worm gears 53. The two worm gears 53 are respectively mounted on the two stirring shafts 3 and rotate in opposite directions. The two sections of helical teeth 54 are respectively meshed and connected with the two worm gears 53. The driving shaft 52 extends into the transmission housing 11 and is rotatably connected to the inner wall of the transmission housing 11.

[0029] During use, the first motor 51 is started, and its output end drives the driving shaft 52 to rotate. The rotation of the driving shaft 52 drives the worm gear 53 to rotate through the two sections of spiral teeth 54, and the two worm gears 53 rotate in opposite directions. This worm gear transmission method is conducive to evenly and stably driving the two stirring shafts 3 to rotate in opposite directions, thereby driving the stirring component 4 to rotate in the opposite direction. The stirring component 4 stirs the sewage inside the treatment tank, improves the fluidity of the sewage inside the treatment tank 1, thereby accelerating the flow speed of the sewage, allowing the sewage to fully contact with the oxygen in the air and the oxygen released by the aeration device 2, and further improves the effect of aerated sewage treatment.

[0030] Compared with the fixed setting of the aeration equipment of the existing aeration tank, the high-efficiency sewage treatment aeration tank achieves a superior sewage aeration treatment effect. Indirectly driving the two stirring shafts 3 by a first motor 51 can improve the efficiency and durability of the equipment, while reducing the cost of maintenance and replacement. In addition, due to its self-locking characteristics, the worm gear transmission method can prevent the stirring shaft from rotating automatically in the shutdown state, thereby improving the safety of the equipment. The utility model patent with the publication number of "CN213326925U" in the prior art uses two independent driving mechanisms to drive the first stirring shaft and the second stirring shaft respectively. Compared with the utility model, the invention uses a single driving mechanism 5 to drive the two stirring shafts 3 simultaneously through a worm gear transmission mechanism. Since only one first motor 51 is needed to realize the reverse rotation of the two stirring shafts 3, the structure of the equipment is simplified, reducing the difficulty of manufacturing and installation. The need to use multiple driving mechanisms is reduced, which not only reduces the manufacturing cost of the equipment, but also reduces the operation and maintenance and replacement costs of the equipment. By driving two stirring shafts 3 through a single driving mechanism 5, the synchronization and coordination of the two stirring shafts can be ensured, the vibration of the equipment caused by uneven driving force can be prevented, and the stability of the equipment can be improved. Since the driving mechanism is reduced, the floor space of the equipment can be reduced, and the space utilization rate of the equipment is improved. Due to its self-locking performance, the worm gear transmission mechanism prevents the stirring shaft from rotating on its own after the first motor stops working, avoiding possible safety risks. Therefore, compared with the existing "CN213326925U" technology, the present invention has higher safety and space utilization while improving equipment efficiency and saving costs.

[0031] The stirring assembly 4 rotating in opposite directions can produce a stronger turbulence effect, thereby improving the mixing efficiency of the sewage and making the various components in the sewage more evenly distributed throughout the treatment tank 1. Turbulence also increases the surface area of ​​the sewage in contact with the air, improves the aeration effect, and more effectively removes harmful substances in the sewage. The stirring assembly 4 rotating in opposite directions can reduce the deposition of dirt at the bottom of the treatment tank 1 and improve the sewage treatment efficiency. If there is heat in the sewage, stirring in opposite directions can better balance the heat and avoid local overheating or overcooling.

[0032] Therefore, the opposite direction rotation of the stirring assembly 4 plays an important role in improving the mixing and aeration effects, preventing the deposition of dirt, and balancing the heat distribution.

[0033] As an example, the aeration device 2 includes a fan 21, a delivery pipe 22, a branch pipe 23 and an air outlet 24. The output end of the fan 21 is connected to one end of the delivery pipe 22, the branch pipe 23 is connected to the delivery pipe 22, the air outlet 24 is arranged on the branch pipe 23, and the branch pipe 23 is laid on the bottom of the treatment tank 1. The fan 21 delivers external air to the delivery pipe 22, and then delivers it to the branch pipe 23 from the delivery pipe 22, and finally discharges it from the air outlet 24 on the branch pipe 23. The air discharged from the air outlet 24 contacts the sewage in the treatment tank, and the oxygen in the air rises due to buoyancy and contacts the sewage, and reacts with the sewage to generate an aeration reaction. The activated sludge method is used to treat sewage to meet the oxygen required by aerobic microorganisms as much as possible.

[0034] As an example, the stirring assembly 4 includes a mounting disk 41 and a stirring blade 42. The mounting disk 41 is fixedly connected to the stirring shaft 3, and the stirring blade 42 is fixedly connected to the mounting disk 41. When the stirring shaft 3 rotates, it drives the mounting disk 41 and the stirring blade 42 connected thereto to rotate synchronously, thereby causing the sewage in the treatment tank 1 to flow. As an optional embodiment, 8 stirring blades 42 are installed on the mounting disk 41, and these stirring blades 42 form a certain bending angle on the side away from the mounting disk 41, and a through hole 43 is provided on the stirring blade 42.

[0035] The stirring blade 42 provided with the through hole 43 provides significant advantages. First, the through hole 43 can reduce the resistance of the stirring blade 42 to the water flow and improve the stirring efficiency. Secondly, the through hole 43 can guide the sewage to flow along a specific path, thereby improving the fluidity of the water flow in the treatment tank 1. Furthermore, the presence of the through hole 43 also helps to increase the contact area between the water flow and the air, thereby improving the aeration efficiency and optimizing the aeration process.

[0036] like Figure 8 and Fig. 9 As an optional embodiment, a high-efficiency sewage treatment aeration tank further includes a feeding mechanism 6, which includes a mounting block 61, a feeding funnel 62 and an electric control valve 63; the mounting block 61 is arranged on the treatment tank 1, and the feeding funnel 62 is connected to the mounting block 61; the electric control valve 63 is installed at the bottom of the feeding funnel 62, and the electric control valve 63 is used to control the opening and closing of the bottom of the feeding funnel 62.

[0037] Specifically, the additive is put into the feeding funnel 62, and the electric control valve 63 is opened, and the additive is discharged from the feeding funnel 62 and sprinkled into the treatment tank 1. Since the stirring blade 42 stirs the water in the treatment tank 1, the additive can be fully mixed with the sewage in the treatment tank 1, effectively improving the sewage treatment effect.

[0038] The additives may be, but are not limited to, the following:

[0039] Additives include:

[0040] Microbial additives: Includes microorganisms such as bacteria, yeast and fungi that are used to accelerate the decomposition of organic matter. These microorganisms can target specific types of pollutants such as ammonia nitrogen, nitrification or phosphorus removal.

[0041] Nutrients: Such as nitrogen, phosphorus and trace elements, used to promote the growth and metabolic activities of microorganisms. In the absence of these nutrients, the activity of microorganisms may be limited.

[0042] pH regulator: used to maintain the ideal pH value in the aeration tank, which is conducive to the growth of microorganisms and stable treatment performance.

[0043] Flocculants and coagulants: used to improve the settling properties of sludge and help the subsequent solid-liquid separation process.

[0044] Antifoaming agents: During the aeration process, a lot of foam may sometimes be produced, and antifoaming agents can be used to control this situation.

[0045] Oxidants: such as ozone or peroxides, used to increase the removal of poorly biodegradable organic matter in wastewater.

[0046] Carbon source: In some biological treatment processes, such as denitrification, an external carbon source (such as methanol, glucose) may be required to provide the electron donor required by the microorganisms.

[0047] Heavy metal capture agent: used to reduce the concentration of heavy metals in sewage and reduce the toxic effects on microorganisms.

[0048] As an example, a mounting plate 7 is provided on the treatment pool 1, and a guide rail 71 and a rack 72 are provided on the mounting plate 7; a groove matching the guide rail 71 is provided on the mounting block 61, and the mounting block 61 is slidingly connected to the guide rail 71; a second motor 64 is connected to the mounting block 61, and a gear 65 is connected to the output end of the second motor 64, and the gear 65 is meshingly connected to the rack 72.

[0049] Specifically, the second motor 64 is started, and the output end of the second motor 64 drives the gear 65 to rotate. The rotation of the gear 65 drives the second motor 64 and the mounting block 61 to move relative to the rack 72. The mounting block 61 slides on the guide rail 71. The movement of the mounting block 61 drives the feeding funnel 62 to move. The movement of the feeding funnel 62 sprinkles the additive along the pool edge of the treatment pool 1. In this way, the stirring blade 42 can be better stirred, thereby accelerating the mixing rate of the additive and the sewage.

[0050] The exemplary embodiments of the present application may be combined with each other, and the exemplary embodiments obtained by the combination also fall within the scope of the present application.

[0051] This application uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core idea of ​​this application. At the same time, for technical personnel in this field, according to the idea of ​​this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on this application.

Claims

1. A high-efficiency sewage treatment aeration tank, characterized in that: The invention comprises a treatment tank (1), an aeration device (2), a stirring shaft (3), a stirring assembly (4) and a driving mechanism (5), wherein the aeration device (2) is arranged inside the treatment tank (1) and is used for aerating the sewage in the treatment tank; the stirring shaft (3) is rotatably mounted inside the treatment tank (1), and the stirring assembly (4) is connected to the stirring shaft (3); one end of the stirring shaft (3) passes through the side wall of the treatment tank (1) and is connected to the driving mechanism (5); the driving mechanism (5) comprises a first motor (51), a driving shaft (52) and two worm gears (53); the driving shaft (52) is provided with two sections of helical teeth (54) matching the worm gears (53); the two worm gears (53) are respectively mounted on the two stirring shafts (3) and meshedly connected with the helical teeth (54); the driving shaft (52) extends into a transmission housing (11) and is rotatably connected to the inner wall of the transmission housing (11); The high-efficiency sewage treatment aeration tank further comprises a feeding mechanism (6), wherein the feeding mechanism (6) comprises a mounting block (61), a feeding funnel (62) and an electric control valve (63); the mounting block (61) is arranged on the treatment tank (1), and the feeding funnel (62) is connected to the mounting block (61); the electric control valve (63) is installed at the bottom of the feeding funnel (62), and the electric control valve (63) is used to control the opening and closing of the bottom of the feeding funnel (62); The treatment pool (1) is provided with a mounting plate (7), and the mounting plate (7) is provided with a guide rail (71) and a rack (72); the mounting block (61) is provided with a groove matching the guide rail (71), and the mounting block (61) is slidably connected to the guide rail (71); the mounting block (61) is connected to a second motor (64), and the output end of the second motor (64) is connected to a gear (65), and the gear (65) is meshingly connected to the rack (72).

2. The high-efficiency sewage treatment aeration tank according to claim 1, characterized in that: The aeration device (2) comprises a fan (21), a delivery pipe (22), a branch pipe (23) and an air outlet (24); the output end of the fan (21) is connected to one end of the delivery pipe (22); the branch pipe (23) is connected to the delivery pipe (22); the air outlet (24) is arranged on the branch pipe (23); and the branch pipe (23) is laid on the bottom of the treatment pool (1).

3. The high-efficiency sewage treatment aeration tank according to claim 1, characterized in that: The stirring assembly (4) comprises a mounting plate (41) and a stirring blade (42); the mounting plate (41) is fixedly connected to the stirring shaft (3); and the stirring blade (42) is fixedly connected to the mounting plate (41).

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