Environmental engineering sewage treatment aeration device

Abstract

The utility model relates to the technical field of aeration devices, and discloses an aeration device for sewage treatment in environmental engineering, which comprises a sewage tank, a motor, a rotating shaft, an aeration disc, an aeration chamber, an aeration pipe, an air pump, an air guide pipe and the like, a guide plate is sleeved on the outer surface of the rotating shaft and positioned on the upper side of the aeration disc, and a fixing rod is fixedly connected to the side edge of the guide plate. The top end of the fixing rod is fixedly connected with a blocking plate, the blocking plate is fixedly connected with the rotating shaft in a sleeving mode, and the bottom face of the blocking plate is provided with an inclined face. When the aeration device disclosed by the utility model is normally used, bubbles can be discharged from the aeration holes and can rise in an approximately vertical state, so that the bubbles can be guided to the lower side of the barrier plate by the guide plate, and finally, the bubbles are discharged out of sewage through the inclined surface of the bottom surface of the barrier plate; the retention time of the bubbles in the sewage is prolonged, so that oxygen in the bubbles can fully react with organic matters in the sewage.

Description

Technical Field

[0001] The utility model relates to the technical field of aeration devices, in particular to an environmental engineering sewage treatment aeration device. Background Art

[0002] Sewage treatment is the process of purifying sewage so that it meets the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering. It is also increasingly entering the daily life of ordinary people. The existing sewage treatment mainly includes hydrolysis acidification tanks, contact oxidation tanks, impurity sedimentation tanks, disinfection treatment tanks and sludge aerobic digestion tanks to purify the sewage. When the sewage passes through the above-mentioned contact oxidation tank, the aerator installed at the bottom of the tank is used to make oxygen react with organic matter in the sewage, thereby realizing the biochemical treatment of the sewage.

[0003] During use of the existing aeration device, oxygen is input into the aeration device through an air pump, and then the oxygen is discharged into the sewage through the aeration pipe and the aeration hole, and bubbles are formed in the water. The bubbles then float to the surface of the sewage in a nearly vertical trajectory. In this process, the bubbles are affected by water pressure and the like, and then broken, causing the oxygen inside them to contact and react with organic matter in the sewage, thereby achieving biochemical treatment of the sewage. However, in the above process, since the bubbles float vertically, their movement speed is relatively fast, and their retention time in the sewage is relatively short, which reduces the probability of the bubbles being broken by water pressure and the like, thereby affecting the degree of reaction between organic matter and oxygen, and ultimately affecting the sewage treatment effect. Utility Model Content

[0004] In view of the shortcomings of existing aeration devices, the utility model provides an environmental engineering sewage treatment aeration device, which has the advantages of increasing the residence time of bubbles in sewage, improving the reaction efficiency of organic matter and oxygen, dividing the bubbles in sewage to make the bubbles smaller, and increasing the contact area between the oxygen inside the bubbles and the organic matter in the sewage, thereby solving technical problems such as the short residence time of bubbles in sewage.

[0005] The utility model provides the following technical solution: an environmental engineering sewage treatment aeration device, including a sewage pool, and also including:

[0006] A cover plate is fixedly mounted on the top surface of the sewage pool, an observation hole is arranged on the left side of the top surface of the cover plate, a motor is fixedly mounted in the middle of the top surface of the cover plate, a rotating shaft is fixedly connected at the output end of the motor, and an aeration disk is fixedly sleeved at the bottom end of the rotating shaft;

[0007] An aeration chamber is opened inside the aeration plate, an aeration pipe is fixedly connected to the outer surface of the aeration plate, aeration holes are opened on the aeration pipe, an air pump is fixedly installed on the right side of the top surface of the cover plate, an air guide pipe is fixedly connected to the output end of the air pump, a ball bearing is fixedly sleeved on the end of the air guide pipe away from the air pump, the ball bearing is fixedly sleeved on the bottom surface of the aeration plate, and the air guide pipe is connected to the aeration chamber.

[0008] Preferably, the rotating shaft includes:

[0009] A guide plate, sleeved on the outer surface of the rotating shaft and located on the upper side of the aeration disk;

[0010] A fixing rod is fixedly connected to the side of the guide plate.

[0011] Preferably, the fixing rod comprises:

[0012] A blocking plate, fixedly connected to the top end of the fixing rod, and the blocking plate is fixedly sleeved with the rotating shaft;

[0013] The inclined surface is arranged on the bottom surface of the blocking plate.

[0014] Preferably, the rotating shaft further includes:

[0015] A fixed plate, fixedly sleeved on the outer surface of the rotating shaft and located between the guide plate and the blocking plate;

[0016] An arc groove is arranged on the fixing plate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. By designing the guide plate, fixed rod, baffle plate and inclined surface, when the aeration device is used normally, the bubbles will be discharged from the aeration hole and rise in a nearly vertical state, so the bubbles will be guided by the guide plate to the lower side of the baffle plate, and finally the bubbles will be discharged from the sewage through the inclined surface of the bottom of the baffle plate. Since the guide plate and the baffle plate will block the bubbles, the residence time of the bubbles in the sewage will be increased, thereby ensuring that the oxygen in the bubbles can fully react with the organic matter in the sewage.

[0019] 2. By designing a fixed plate and an arc groove, when the bubbles are guided to the lower side of the baffle plate by the guide plate, the rotating shaft will drive the fixed plate to rotate in the sewage due to the rotation of the rotating shaft, and the fixed plate is arranged between the guide plate and the baffle plate, so that after the bubbles pass through the guide plate, the bubbles will be cut into smaller bubbles by the rotating fixed plate, thereby increasing the contact area between the oxygen in the bubbles and the organic matter in the sewage, and the cut bubbles will be discharged to the lower side of the baffle plate through the arc groove, and finally discharged through the inclined surface at the bottom of the baffle plate, thereby increasing the residence time of the bubbles in the sewage and also improving the reaction efficiency of the organic matter in the sewage and oxygen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the sewage pool of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the aeration chamber of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the guide plate and the fixed plate of the utility model;

[0024] Figure 5 It is a schematic diagram of the planar structure of the guide plate, the blocking plate and the fixed disk of the utility model.

[0025] In the figure: 1. sewage pool; 2. cover plate; 3. observation hole; 4. motor; 5. rotating shaft; 51. guide plate; 52. fixing rod; 53. blocking plate; 54. inclined surface; 55. fixing plate; 56. arc groove; 6. aeration plate; 7. aeration chamber; 8. aeration pipe; 9. aeration hole; 10. air pump; 11. air guide pipe; 12. ball bearing. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 5 , an environmental engineering sewage treatment aeration device, comprising a sewage pool 1, a cover plate 2 is fixedly installed on the top surface of the sewage pool 1, an observation hole 3 is arranged on the left side of the top surface of the cover plate 2, a motor 4 is fixedly installed on the middle part of the top surface of the cover plate 2, a rotating shaft 5 is fixedly welded at the output end of the motor 4, an aeration plate 6 is fixedly sleeved at the bottom end of the rotating shaft 5, an aeration chamber 7 is provided inside the aeration plate 6, an aeration pipe 8 is fixedly welded on the outer surface of the aeration plate 6, an aeration hole 9 is provided on the aeration pipe 8, an air pump 10 is fixedly installed on the right side of the top surface of the cover plate 2, an air guide pipe 11 is fixedly connected to the output end of the air pump 10, a ball bearing 12 is fixedly sleeved on the end of the air guide pipe 11 away from the air pump 10, the ball bearing 12 is fixedly sleeved on the bottom surface of the aeration plate 6, and the air guide pipe 11 is connected to the aeration chamber 7.

[0028] See also Figure 1-Figure 5The outer surface of the rotating shaft 5 is located on the upper side of the aeration disk 6 and is sleeved with a guide plate 51 , through which the bubbles discharged from the aeration holes 9 are guided, and a fixing rod 52 is fixedly welded to the side of the guide plate 51 .

[0029] See also Figure 1-Figure 5 A blocking plate 53 is fixedly welded to the top of the fixed rod 52, and the blocking plate 53 is fixedly sleeved with the rotating shaft 5. The bottom surface of the blocking plate 53 is provided with an inclined surface 54. When the bubbles are guided by the guide plate 51, the bubbles will gather on the lower side of the blocking plate 53, so that the bubbles will be discharged through the inclined surface 54 at the bottom of the blocking plate 53, thereby increasing the residence time of the bubbles in the sewage.

[0030] See also Figure 1-Figure 5 The outer surface of the rotating shaft 5 is fixedly sleeved with a fixed disk 55 between the guide plate 51 and the blocking plate 53 to ensure that the bubbles will be broken into small bubbles by the rotating fixed disk 55, thereby increasing the contact area between the oxygen in the bubbles and the organic matter in the sewage, and improving the reaction efficiency of oxygen and organic matter. An arc groove 56 is opened on the fixed disk 55 to ensure that the bubbles can be discharged through the arc groove 56 after being broken up by the fixed disk 55.

[0031] Working principle: When sewage needs to be aerated, oxygen is pumped into the air pipe 11 through the air pump 10, and the oxygen is introduced into the aeration chamber 7 through the air pipe 11, and finally the oxygen is discharged through the aeration pipe 8 and the aeration hole 9, thereby forming bubbles in the sewage pool 1, and the oxygen in the bubbles is used to react with the organic matter in the sewage, and then the motor 4 is turned on, the motor 4 drives the shaft 5 to rotate, the shaft 5 drives the aeration plate 6 and the aeration pipe 8 to rotate, and the aeration plate 6 rotates around the air pipe 11 through the ball bearing 12. In this process, since the bubbles will be discharged from the aeration hole 9 and the bubbles will rise in a nearly vertical state, the bubbles will be guided by the guide plate 51 to the lower side of the baffle plate 53, and finally the bubbles will be discharged from the sewage through the inclined surface 54 on the bottom surface of the baffle plate 53. The bubbles will be blocked, so that the residence time of the bubbles in the sewage will be increased, thereby ensuring that the oxygen in the bubbles can fully react with the organic matter in the sewage. Secondly, when the bubbles are guided to the lower side of the blocking plate 53 by the guide plate 51, due to the rotation of the rotating shaft 5, the rotating shaft 5 will drive the fixed disk 55 to rotate in the sewage, and the fixed disk 55 is arranged between the guide plate 51 and the blocking plate 53, so that after the bubbles pass through the guide plate 51, the bubbles will be cut into smaller bubbles by the rotating fixed disk 55, thereby increasing the contact area between the oxygen in the bubbles and the organic matter in the sewage. The cut bubbles will be discharged to the lower side of the blocking plate 53 through the arc groove 56, and finally discharged through the inclined surface 54 at the bottom of the blocking plate 53, thereby increasing the residence time of the bubbles in the sewage and also improving the reaction efficiency of the organic matter in the sewage and oxygen.

Claims

1. An environmental engineering sewage treatment aeration device, comprising a sewage tank (1), characterized in that: Also includes: A cover plate (2) is fixedly mounted on the top surface of the sewage pool (1); an observation hole (3) is provided on the left side of the top surface of the cover plate (2); a motor (4) is fixedly mounted in the middle of the top surface of the cover plate (2); a rotating shaft (5) is fixedly connected to the output end of the motor (4); and an aeration plate (6) is fixedly sleeved on the bottom end of the rotating shaft (5); An aeration chamber (7) is provided inside the aeration plate (6); an aeration pipe (8) is fixedly connected to the outer surface of the aeration plate (6); an aeration hole (9) is provided on the aeration pipe (8); an air pump (10) is fixedly installed on the right side of the top surface of the cover plate (2); an air guide pipe (11) is fixedly connected to the output end of the air pump (10); a ball bearing (12) is fixedly sleeved at one end of the air guide pipe (11) away from the air pump (10); the ball bearing (12) is fixedly sleeved to the bottom surface of the aeration plate (6); and the air guide pipe (11) is in communication with the aeration chamber (7).

2. The environmental engineering sewage treatment aeration device according to claim 1, characterized in that: The rotating shaft (5) comprises: A guide plate (51) sleeved on the outer surface of the rotating shaft (5) and located on the upper side of the aeration plate (6); A fixing rod (52) is fixedly connected to a side edge of the guide plate (51).

3. The environmental engineering sewage treatment aeration device according to claim 2, characterized in that: The fixing rod (52) comprises: A blocking plate (53) is fixedly connected to the top end of the fixing rod (52), and the blocking plate (53) is fixedly sleeved with the rotating shaft (5); The inclined surface (54) is arranged on the bottom surface of the blocking plate (53).

4. The environmental engineering sewage treatment aeration device according to claim 3, characterized in that: The rotating shaft (5) also includes: A fixed plate (55) fixedly sleeved on the outer surface of the rotating shaft (5) and located between the guide plate (51) and the blocking plate (53); An arc-shaped groove (56) is formed on the fixing plate (55).

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