An aeration-based grit chamber

Abstract

This invention discloses an aeration-based sedimentation tank, comprising: a sedimentation tank body with a support fixed to its top; a rotating shaft rotatably mounted in the middle of the inner side of the sedimentation tank body, with a motor mounted on the support to drive the rotating shaft to rotate; and an aeration mechanism disposed on the side wall of the rotating shaft for aeration and stirring of the sedimentation tank body. The lower end of the rotating shaft is connected to an air inlet pipe internally communicating with the aeration mechanism via a sealed bearing. By including the support, aeration mechanism, retrieval mechanism, motor, and rotating shaft, the need for multiple motors for stirring and retrieval of floating debris is avoided, which increases manufacturing costs. This device can achieve this with a single motor, reducing production and processing costs. Furthermore, the aeration position can be moved and adjusted, avoiding fixed air outlets and resulting in a single aeration position. In this device, the aeration mechanism can be moved during stirring, allowing for adjustment of the aeration position at any time, thus improving the uniformity of dissolved oxygen in the water.

Description

Technical Field

[0001] This invention specifically relates to an aeration-based sedimentation tank. Background Technology

[0002] A grit chamber is a device used in water treatment, primarily to remove suspended solids and impurities from water. It typically consists of a large container, and its working principle is based on gravity and filtration. When water flows into the grit chamber, larger particles settle to the bottom due to gravity, while smaller particles are filtered out by the grit layer. This process effectively removes suspended solids from the water, improving water quality.

[0003] Existing grit chambers rely on dredging machines to remove floating debris and mixers to agitate wastewater, ensuring the flocculant is evenly mixed and the bottom plate is uniformly distributed. This process typically requires two or more motors, which leads to inconvenient maintenance, higher manufacturing costs, and poor performance. Furthermore, the fixed aeration location affects the uniform distribution of dissolved oxygen in the water. Therefore, we propose an aeration-based grit chamber. Summary of the Invention

[0004] The purpose of this invention is to provide an aeration-based grit chamber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an aeration-based grit chamber, comprising:

[0006] The sedimentation tank body, with a support fixed to its top;

[0007] A rotating shaft is rotatably installed in the middle of the inner side of the sedimentation tank body, and a motor for driving the rotating shaft to rotate is installed on the bracket;

[0008] An aeration mechanism is installed on the side wall of the rotating shaft to aerate and stir the interior of the sedimentation tank. The lower end of the rotating shaft is connected to an air inlet pipe that communicates internally with the aeration mechanism via a sealed bearing.

[0009] The retrieval mechanism is slidably disposed on the inner edge of the sedimentation tank body, and one side wall of the retrieval mechanism is fixed to the aeration mechanism to drive the floating object to move out from the inner side of the sedimentation tank body.

[0010] A floating trough is fixed to the upper part of the outer surface of the aeration mechanism, and the upper surface of the floating trough is flush with the upper surface of the sedimentation tank body. A discharge port is provided on one side of the floating trough. A scraper is detachably installed on one side wall of the retrieval mechanism, and the scraper corresponds to the floating trough.

[0011] The aeration mechanism includes a connecting pipe and an aeration pipe, and the connecting pipe is fixed to the side wall of the rotating shaft, with the aeration pipe installed on the lower surface of the connecting pipe.

[0012] The aeration pipe has aeration holes on its outer surface and a baffle is fixed to one side wall of the aeration pipe.

[0013] The cross-section of the baffle is "V" shaped;

[0014] The retrieval mechanism includes a filter plate, a slider, and a lever. The filter plate is slidably disposed inside the sedimentation tank body, and the lever is integrally formed on the filter plate. A guide rail is fixed in the middle of the inner surface of the sedimentation tank body, and a slider that cooperates with the guide rail is provided on the lower surface of the filter plate.

[0015] Preferably, the bottom edge of the inner side of the sedimentation tank body is recessed to form a sand accumulation trough, and a sewage pipe connected to the sand accumulation trough is provided on the side wall of the sedimentation tank body.

[0016] Preferably, the upper surface of the deflector plate is higher than the upper surface of the sedimentation tank body, and the filter plate is provided in two places.

[0017] Preferably, a drainage pipe is provided on one side wall of the sedimentation tank body.

[0018] Preferably, an inlet pipe is fixed on the lower surface of the sedimentation tank body.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] By incorporating a support frame, aeration mechanism, retrieval mechanism, motor, and rotating shaft, this device avoids the need for multiple motors and high manufacturing costs associated with stirring and retrieving floating debris. It utilizes only one motor, reducing production costs. Furthermore, the aeration position can be moved and adjusted, preventing fixed aeration outlets and ensuring consistent aeration. The device allows for movement of the aeration mechanism during stirring, enabling adjustments to the aeration position and improving the uniformity of dissolved oxygen in the water. Its simple structure and ease of use make it a truly effective solution. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the salvage mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the intake pipe structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the filter plate structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the aeration mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the baffle structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the floating trough structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the sand accumulation trough structure of the present invention.

[0029] In the diagram: 1. Grit chamber body; 101. Sewage pipe; 102. Liquid inlet pipe; 103. Air inlet pipe; 104. Drainage pipe; 105. Guide rail; 106. Grit collection trough; 2. Support frame; 3. Aeration mechanism; 31. Connecting pipe; 32. Aeration pipe; 321. Aeration hole; 322. Baffle; 4. Salvage mechanism; 41. Filter plate; 42. Sliding block; 43. Pulley; 5. Motor; 6. Floating material trough; 61. Discharge outlet; 7. Scraper; 8. Rotating shaft. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-8 The present invention provides a technical solution: an aeration-based grit chamber, comprising:

[0032] The sedimentation tank body 1 has a support frame 2 fixed at the top of the sedimentation tank body 1.

[0033] The rotating shaft 8 is rotatably installed in the middle of the inner side of the sedimentation tank body 1, and the bracket 2 is equipped with a motor 5 that drives the rotating shaft 8 to rotate.

[0034] The aeration mechanism 3 is set on the side wall of the rotating shaft 8 to aerate and stir the inside of the sedimentation tank body 1. The position of the aeration mechanism 3 can be adjusted at any time. During aeration, the gas is more evenly distributed inside the sedimentation tank body 1 and can be stirred inside the sedimentation tank body 1. The lower end of the rotating shaft 8 is connected to the air inlet pipe 103, which is internally connected to the aeration mechanism 3, through a sealed bearing, so as to facilitate the pumping in of high-pressure gas.

[0035] The retrieval mechanism 4 is slidably installed on the inner edge of the sedimentation tank body 1, and one side wall of the retrieval mechanism 4 is fixed to the aeration mechanism 3 to drive the floating objects to move out from the inner side of the sedimentation tank body 1.

[0036] A floating trough 6 is fixed at the upper end of the outer surface of the aeration mechanism 3, and the upper surface of the floating trough 6 is flush with the upper surface of the sedimentation tank body 1. A discharge port 61 is provided on one side of the floating trough 6. A scraper 7 is detachably installed on one side wall of the retrieval mechanism 4. The scraper 7 corresponds to the floating trough 6, which facilitates the removal of floating objects.

[0037] The aeration mechanism 3 includes a connecting pipe 31 and an aeration pipe 32. The connecting pipe 31 is fixed to the side wall of the rotating shaft 8, and the aeration pipe 32 is installed on the lower surface of the connecting pipe 31 to facilitate aeration.

[0038] Aeration holes 321 are provided on the outer surface of the aeration pipe 32. A baffle 322 is fixed on one side wall of the aeration pipe 32 to prevent a large amount of mud and sand from contacting the aeration holes 321 and causing blockage.

[0039] The cross-section of baffle 322 is "V" shaped;

[0040] The retrieval mechanism 4 includes a filter plate 41, a slider 42, and a lever 43. The filter plate 41 is slidably disposed inside the sedimentation tank body 1, and the lever 43 is integrally formed on the filter plate 41 to facilitate the movement of more floating objects toward the filter plate 41. A guide rail 105 is fixed in the middle of the inner surface of the sedimentation tank body 1, and a slider 42 that cooperates with the guide rail 105 is provided on the lower surface of the filter plate 41 to better support the filter plate 41.

[0041] Preferably, the bottom edge of the inner side of the sedimentation tank body 1 is recessed to form a sand accumulation trough 106, which facilitates the flow of denser mud and sand into the sand accumulation trough 106, making it easier to discharge them later. The side wall of the sedimentation tank body 1 is provided with a sewage pipe 101 that is connected to the sand accumulation trough 106.

[0042] Preferably, the upper surface of the deflector plate 43 is higher than the upper surface of the sedimentation tank body 1, and the filter plate 41 is provided in two places to facilitate better deflection of floating objects to the outside.

[0043] Preferably, a drain pipe 104 is provided on one side wall of the sedimentation tank body 1 to facilitate the discharge of purified water.

[0044] Preferably, an inlet pipe 102 is fixed on the lower surface of the sedimentation tank body 1 to facilitate the introduction of sewage into the inside of the sedimentation tank body 1.

[0045] The working principle and usage process of this invention are as follows: During use, sewage is pumped into the inner side of the sedimentation tank body 1 through the air inlet pipe 103. The silt and sand have a high density and slide into the sedimentation trough 106 under the action of gravity. Floating objects float on the surface of the sewage. The motor 5 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the aeration mechanism 3 and the retrieval mechanism 4 to rotate. The aeration mechanism 3 stirs the inner side of the sedimentation tank body 1. The floating objects move towards the higher end of the filter plate 41 through the inclined surface of the filter plate 41. The filter plate 41 allows the floating objects to move better towards the filter plate 41 and then flow into the inner side of the floating object trough 6. The retrieval mechanism 4 drives the scraper 7 to move... The scraper 7 moves the floating objects inside the floating trough 6 to the outlet 61 for discharge. High-pressure gas enters the aeration pipe 32 through the air inlet pipe 103, the rotating shaft 8 and the connecting pipe 31 in sequence. It aerates the inside of the grit chamber 1 through the aeration holes 321 to increase the dissolved oxygen content inside the grit chamber 1. The rotation direction of the aeration pipe 32 is fixed. The baffle 322 can reduce the entry of mud and sand from the outside into the aeration holes 321 when the aeration pipe 32 moves, which may cause blockage. Finally, after aeration, the mud and sand are discharged to the outside through the sewage pipe 101, and the purified water is discharged to the outside through the drain pipe 104.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grit chamber based on aeration, characterized in that, include: The sedimentation tank body (1) has a support (2) fixed at the top of the sedimentation tank body (1); The rotating shaft (8) is rotatably installed in the middle of the inner side of the sedimentation tank body (1), and the bracket (2) is equipped with a motor (5) that drives the rotating shaft (8) to rotate. An aeration mechanism (3) is set on the side wall of the rotating shaft (8) to aerate and stir the inside of the sedimentation tank body (1). The lower end of the rotating shaft (8) is connected to an air inlet pipe (103) that communicates internally with the aeration mechanism (3) through a sealed bearing. The retrieval mechanism (4) is slidably disposed on the inner edge of the sedimentation tank body (1), and one side wall of the retrieval mechanism (4) is fixed to the aeration mechanism (3) to drive the floating object to move out from the inner side of the sedimentation tank body (1); The upper surface of the aeration mechanism (3) is fixed with a floating trough (6), and the upper surface of the floating trough (6) is flush with the upper surface of the sedimentation tank body (1). A discharge port (61) is provided on one side of the floating trough (6). A scraper (7) is detachably installed on one side wall of the retrieval mechanism (4), and the scraper (7) corresponds to the floating trough (6). The aeration mechanism (3) includes a connecting pipe (31) and an aeration pipe (32), and the connecting pipe (31) is fixed to the side wall of the rotating shaft (8), and the aeration pipe (32) is installed on the lower surface of the connecting pipe (31). The aeration pipe (32) has an aeration hole (321) on its outer surface, and a baffle (322) is fixed on one side wall of the aeration pipe (32). The cross-section of the baffle (322) is "V" shaped; The retrieval mechanism (4) includes a filter plate (41), a slider (42) and a lever (43). The filter plate (41) is slidably disposed inside the sedimentation tank body (1), and the lever (43) is integrally formed on the filter plate (41). A guide rail (105) is fixed in the middle of the inner surface of the sedimentation tank body (1), and a slider (42) that cooperates with the guide rail (105) is provided on the lower surface of the filter plate (41).

2. The aeration-based grit chamber according to claim 1, characterized in that: The bottom edge of the inner side of the sedimentation tank body (1) is recessed to form a sand accumulation trough (106), and a sewage pipe (101) connected to the sand accumulation trough (106) is provided on the side wall of the sedimentation tank body (1).

3. A grit chamber based on aeration according to claim 1, characterized in that: The upper surface of the baffle plate (43) is higher than the upper surface of the sedimentation tank body (1), and the filter plate (41) is provided in two places.

4. A grit chamber based on aeration according to claim 1, characterized in that: A drainage pipe (104) is provided on one side wall of the sedimentation tank body (1).

5. A grit chamber based on aeration according to claim 1, characterized in that: The sedimentation tank body (1) has an inlet pipe (102) fixed on its lower surface.

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