Aeration device for treating high-salinity wastewater

Abstract

The utility model discloses an aeration device for treating high-salinity wastewater, and particularly relates to the technical field of high-salinity wastewater aeration, which comprises a wastewater tank, a motor is fixedly arranged at the upper end of the wastewater tank through a flange, the output end of the motor penetrates through the upper end of the wastewater tank, and a rotating shaft is fixedly arranged at the output end of the motor; bottom stirring blades are fixedly arranged on the outer surface of the lower end of the rotating shaft, and an air inlet pipe penetrates through one side of the waste water tank. A plurality of wastewater stirring devices are respectively arranged on the inner wall of the wastewater tank; the wastewater stirring device comprises a limiting plate and a connecting plate, a rotating rod is arranged between the connecting plate and the limiting plate in a penetrating manner, and a plurality of stirring blades are fixedly arranged on the outer surface of the rotating rod; a distribution aeration device capable of uniformly distributing and aerating air is arranged on the inner wall of the wastewater tank. According to the utility model, the wastewater stirring device is arranged, so that high-salinity wastewater can be stirred at multiple positions at the same time, the high-salinity wastewater flows towards the aeration nozzle, and the aeration efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-salt wastewater aeration, and more specifically, to an aeration device for treating high-salt wastewater. Background Art

[0002] High-salt wastewater refers to wastewater with a total salt content of at least 1%. It mainly comes from chemical plants and the collection and processing of oil and natural gas. This wastewater contains a variety of substances (including salt, oil, organic heavy metals and radioactive substances). There are many ways to produce saline wastewater, and the amount of water is increasing year by year. It is crucial to remove the impact of organic pollutants in saline wastewater on the environment; generally, in the process of high-salt wastewater treatment, aeration treatment of high-salt wastewater is involved. Aeration refers to the use of certain methods and equipment to force air into the sewage, so that the sewage in the pool is in contact with the air for oxygenation, and the liquid is stirred to accelerate the transfer of oxygen in the air to the liquid, prevent the suspended objects in the pool from sinking, strengthen the contact between organic matter and microorganisms and dissolved oxygen in the pool, and oxidize and decompose the organic matter in the sewage. This process of forced oxygenation in the sewage is called aeration.

[0003] Most of the existing aeration devices for treating high-salinity wastewater use multiple air inlet pipes inserted into the high-salinity wastewater for oxygenated aeration. Since the air outlet end of the air inlet pipe is small, the aeration effect is not ideal. The high-salinity wastewater is stirred by a fan blade driven by a motor to drive the high-salinity wastewater to flow and improve the aeration efficiency. However, due to the simple fan blade driving the vortex stirring of the high-salinity wastewater, the high-salinity wastewater is less exposed to oxygen, which affects the aeration effect. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an aeration device for treating high-salt wastewater. The technical problem to be solved is that the air outlet end of the air inlet pipe is small, resulting in poor aeration effect, and simple fan blade stirring causes high-salt wastewater to contact less oxygen.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an aeration device for treating high-salinity wastewater, comprising a wastewater tank:

[0006] A motor is fixedly provided at the upper end of the wastewater tank through a flange, the output end of the motor passes through the upper end of the wastewater tank, a rotating shaft is fixedly provided at the output end of the motor, a bottom stirring blade is fixedly provided on the outer surface of the lower end of the rotating shaft, and an air inlet pipe passes through one side of the wastewater tank;

[0007] The inner wall of the wastewater tank is respectively provided with a plurality of wastewater stirring devices for stirring high-salt wastewater from different positions simultaneously;

[0008] The wastewater stirring device comprises a limit plate and a connecting plate, the limit plate and the connecting plate are respectively fixedly arranged on the inner wall of the wastewater tank, a rotating rod is penetrated between the connecting plate and the limit plate, and a plurality of stirring blades are fixedly arranged on the outer surface of the rotating rod;

[0009] The inner wall of the wastewater tank is provided with a distribution aeration device capable of evenly distributing air for aeration, and is used for evenly distributing air to aerate the high-salt wastewater.

[0010] In a preferred embodiment, a waterproof cover is fixedly provided on the upper end of the connecting plate, and the rotating shaft passes through the waterproof cover and the inner side of the connecting plate.

[0011] In a preferred embodiment, a rotating bevel gear is fixedly provided on the outer surface of the rotating shaft, a limit seat is fixedly provided on the upper end of the connecting plate, a double-ended bevel gear rod is penetrated through the inner side of the limit seat, and the rotating bevel gear is meshingly connected with one end of the double-ended bevel gear rod.

[0012] In a preferred embodiment, a transmission bevel gear is fixedly provided on the upper end of the rotating rod, and the transmission bevel gear is meshingly connected with the other end of the double-ended bevel gear rod.

[0013] In a preferred embodiment, the distributed aeration device includes a diverter, which is fixedly arranged on the inner wall of the wastewater tank, the air inlet pipe is connected to the input end of the diverter, the inner side of the diverter is connected to a guide box, and the upper and lower ends of the guide box are respectively connected to aeration nozzles.

[0014] In a preferred embodiment, the inner side of the guide box passes through a limiting sleeve, the inner side of the guide box is fixedly connected to the outer surface of the limiting sleeve, and the rotating shaft passes through the inner side of the limiting sleeve.

[0015] In a preferred embodiment, the upper end of the wastewater tank is connected to a pressure relief port, one side of the wastewater tank is connected to a water inlet pipe, one side of the wastewater tank is fixedly provided with a liquid level gauge, the lower end of the wastewater tank is connected to a drain pipe, and a drain valve is fixedly provided on the drain pipe.

[0016] Technical effects and advantages of the utility model:

[0017] 1. The utility model is provided with a wastewater stirring device, which is conducive to stirring high-salt wastewater at multiple locations at the same time, so that the high-salt wastewater flows toward the aeration nozzle, thereby improving the aeration efficiency and avoiding the high-salt wastewater from swirling. The motor drives the rotating shaft and the rotating bevel gear to rotate, so that multiple double-end bevel gear rods can be driven to rotate. Because the upper end of the rotating rod passes through the connecting plate, when the double-end bevel gear rod drives the transmission bevel gear to rotate, it can drive the rotating rod and the stirring blade to rotate. Since the stirring direction of the stirring blade is spiral downward, the high-salt wastewater flows toward the aeration nozzle, and the air contacts the flowing high-salt wastewater, thereby improving the aeration efficiency.

[0018] 2. The utility model is provided with a distributed aeration device, which is beneficial to evenly distribute the air for aeration of high-salt wastewater, making the aeration more uniform. The air pump is connected to the air inlet pipe to draw air into the diverter, and the diverter disperses the air into the guide box and sprays it out through the aeration nozzles. Since the aeration nozzles are respectively distributed at the upper and lower ends of the guide box, the effect of distributed aeration is achieved. The limiting sleeve is used to limit the rotation of the rotating shaft, so that the rotation of the rotating shaft is more stable. The rotating rotating shaft drives the stirring blades at the bottom, which can make the air discharged from the aeration nozzle at the lower end of the guide box flow downward, thereby improving the aeration efficiency as a whole and making the aeration more uniform and faster. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the wastewater stirring device of the utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the distributed aeration device of the utility model.

[0023] The accompanying drawings are marked as follows: 1. wastewater tank; 2. wastewater stirring device; 3. distributed aeration device; 4. motor; 5. pressure relief port; 6. water inlet pipe; 7. air inlet pipe; 8. liquid level gauge; 9. drain pipe; 10. bottom stirring blade; 11. drain valve; 12. rotating shaft; 21. limit plate; 22. connecting plate; 23. waterproof cover; 24. rotating rod; 25. stirring blade; 26. double-ended bevel gear rod; 27. limit seat; 28. rotating bevel gear; 29. ​​transmission bevel gear; 31. diverter; 32. guide box; 33. aeration nozzle; 34. limit sleeve. DETAILED DESCRIPTION

[0024] 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 the field of high-salinity wastewater aeration without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 and 2 As shown, the utility model provides an aeration device for treating high-salinity wastewater, including a wastewater tank 1:

[0026] A motor 4 is fixedly provided at the upper end of the wastewater tank 1 through a flange, and an output end of the motor 4 passes through the upper end of the wastewater tank 1. A rotating shaft 12 is fixedly provided at the output end of the motor 4. A bottom stirring blade 10 is fixedly provided on the outer surface of the lower end of the rotating shaft 12. An air inlet pipe 7 passes through one side of the wastewater tank 1. A pressure relief port 5 is connected to the upper end of the wastewater tank 1. A water inlet pipe 6 is connected to one side of the wastewater tank 1. A liquid level meter 8 is fixedly provided on one side of the wastewater tank 1. A drain pipe 9 is connected to the lower end of the wastewater tank 1. A drain valve 11 is fixedly provided on the drain pipe 9.

[0027] In order to be able to stir the high-salinity wastewater from multiple locations simultaneously, a plurality of wastewater stirring devices 2 are respectively provided on the inner wall of the wastewater tank 1 for stirring the high-salinity wastewater from different locations simultaneously;

[0028] like Figure 3 As shown, the wastewater stirring device 2 includes a limit plate 21 and a connecting plate 22, the limit plate 21 and the connecting plate 22 are respectively fixedly arranged on the inner wall of the wastewater tank 1, a rotating rod 24 is penetrated between the connecting plate 22 and the limit plate 21, a plurality of stirring blades 25 are fixedly arranged on the outer surface of the rotating rod 24, a waterproof cover 23 is fixedly arranged on the upper end of the connecting plate 22, the rotating shaft 12 penetrates the waterproof cover 23 and the inner side of the connecting plate 22, a rotating bevel gear 28 is fixedly arranged on the outer surface of the rotating shaft 12, a limit seat 27 is fixedly arranged on the upper end of the connecting plate 22, a double-end bevel gear rod 26 is penetrated on the inner side of the limit seat 27, and the rotating bevel gear 28 is connected to the double-end bevel gear rod 26. The ends are meshed and connected, and a transmission bevel gear 29 is fixedly arranged on the upper end of the rotating rod 24. The transmission bevel gear 29 is meshed and connected with the other end of the double-end bevel gear rod 26. The motor 4 drives the rotating shaft 12 and the rotating bevel gear 28 to rotate, so that multiple double-end bevel gear rods 26 can be driven to rotate. Because the upper end of the rotating rod 24 passes through the connecting plate 22, when the double-end bevel gear rod 26 drives the transmission bevel gear 29 to rotate, it can drive the rotating rod 24 and the stirring blade 25 to rotate. Since the stirring direction of the stirring blade 25 is spirally downward, the high-salt wastewater flows toward the aeration nozzle 33, so that the air contacts the flowing high-salt wastewater, thereby improving the aeration efficiency.

[0029] Furthermore, in order to make the aeration more uniform, the inner wall of the wastewater tank 1 is provided with a distribution aeration device 3 capable of evenly distributing the air for aeration, which is used to evenly distribute the air to aerate the high-salinity wastewater;

[0030] like Figure 4As shown, the distributed aeration device 3 includes a diverter 31, which is fixedly arranged on the inner wall of the wastewater tank 1, and the air inlet pipe 7 is connected to the input end of the diverter 31. The inner side of the diverter 31 is connected to a guide box 32, and the upper and lower ends of the guide box 32 are respectively connected to aeration nozzles 33. The inner side of the guide box 32 passes through a limiting sleeve 34, and the inner side of the guide box 32 is fixedly connected to the outer surface of the limiting sleeve 34. The rotating shaft 12 passes through the inner side of the limiting sleeve 34, and is connected to an air pump through the air inlet pipe 7 to draw air into the diverter. 31, the diverter 31 disperses the air into the guide box 32 and is sprayed out through the aeration nozzles 33. Since the aeration nozzles 33 are respectively distributed at the upper and lower ends of the guide box 32, the effect of distributed aeration is achieved. The limiting sleeve 34 is used to limit the rotation of the rotating shaft 12, so that the rotation of the rotating shaft 12 is more stable. The rotating rotating shaft 12 drives the stirring blades 10 at the bottom, which can make the air discharged from the aeration nozzles 33 at the lower end of the guide box 32 flow downward, thereby improving the aeration efficiency as a whole and making the aeration more uniform and faster.

[0031] The working principle is as follows: when the utility model is in use, high-salt wastewater flows into the utility model through the water inlet pipe 6, and the liquid level height is observed according to the liquid level meter 8, thereby stopping the inflow of the water inlet pipe 6. The coordinated use of the wastewater stirring device 2 and the distributed aeration device 3 can improve the aeration efficiency, and the high-salt wastewater after aeration flows out from the drain pipe 9.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An aeration device for treating high-salinity wastewater, comprising a wastewater tank (1), characterized in that: A motor (4) is fixedly provided at the upper end of the wastewater tank (1) via a flange, an output end of the motor (4) passes through the upper end of the wastewater tank (1), a rotating shaft (12) is fixedly provided at the output end of the motor (4), a bottom stirring blade (10) is fixedly provided on the outer surface of the lower end of the rotating shaft (12), and an air inlet pipe (7) passes through one side of the wastewater tank (1); The inner wall of the wastewater tank (1) is provided with a plurality of wastewater stirring devices (2) for stirring high-salinity wastewater from different positions simultaneously; The wastewater stirring device (2) comprises a limit plate (21) and a connecting plate (22), wherein the limit plate (21) and the connecting plate (22) are respectively fixedly arranged on the inner wall of the wastewater tank (1), a rotating rod (24) is provided between the connecting plate (22) and the limit plate (21), and a plurality of stirring blades (25) are fixedly arranged on the outer surface of the rotating rod (24); The inner wall of the wastewater tank (1) is provided with a distribution aeration device (3) capable of evenly distributing air for aeration, and is used to evenly distribute air to aerate the high-salinity wastewater.

2. An aeration device for treating high-salinity wastewater according to claim 1, characterized in that: A waterproof cover (23) is fixedly provided on the upper end of the connecting plate (22), and the rotating shaft (12) passes through the waterproof cover (23) and the inner side of the connecting plate (22).

3. The aeration device for treating high-salinity wastewater according to claim 1, characterized in that: A rotating bevel gear (28) is fixedly provided on the outer surface of the rotating shaft (12), a limiting seat (27) is fixedly provided on the upper end of the connecting plate (22), a double-end bevel gear rod (26) is penetrated through the inner side of the limiting seat (27), and the rotating bevel gear (28) is meshingly connected with one end of the double-end bevel gear rod (26).

4. An aeration device for treating high-salinity wastewater according to claim 3, characterized in that: A transmission bevel gear (29) is fixedly provided on the upper end of the rotating rod (24), and the transmission bevel gear (29) is meshingly connected with the other end of the double-end bevel gear rod (26).

5. The aeration device for treating high-salinity wastewater according to claim 1, characterized in that: The distributed aeration device (3) comprises a flow diverter (31), the flow diverter (31) is fixedly arranged on the inner wall of the wastewater tank (1), the air inlet pipe (7) is connected to the input end of the flow diverter (31), the inner side of the flow diverter (31) is connected to a flow guide box (32), and the upper and lower ends of the flow guide box (32) are respectively connected to aeration nozzles (33).

6. An aeration device for treating high-salinity wastewater according to claim 5, characterized in that: The inner side of the guide box (32) passes through a limiting sleeve (34), the inner side of the guide box (32) is fixedly connected to the outer surface of the limiting sleeve (34), and the rotating shaft (12) passes through the inner side of the limiting sleeve (34).

7. The aeration device for treating high-salinity wastewater according to claim 1, characterized in that: The upper end of the wastewater tank (1) is connected to a pressure relief port (5), one side of the wastewater tank (1) is connected to a water inlet pipe (6), one side of the wastewater tank (1) is fixedly provided with a liquid level gauge (8), the lower end of the wastewater tank (1) is connected to a drain pipe (9), and a drain valve (11) is fixedly provided on the drain pipe (9).

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