Aeration device in residual water treatment of lake area ecological dredging

Abstract

This utility model discloses an aeration device for treating residual water in ecological dredging of lake areas, relating to the field of sludge treatment technology. It has the advantage of allowing the water at the edge of the aeration tank to come into contact with air, thereby improving the sufficiency of contact between the water and air at the edge of the aeration tank. The key technical points are: it includes an aeration tank and straight pipes arranged on the upper surface of the aeration tank and distributed along the length of the tank opening. A blower is provided on the upper surface of the aeration tank to deliver air into the straight pipes. Multiple branch pipes are provided on the straight pipes, spaced apart along their length. Each branch pipe is connected to the straight pipe and extends into the aeration tank. A flexible hose is connected to the lower end of each branch pipe, and an aeration element is connected to the end of each flexible hose furthest from the branch pipe.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, specifically to an aeration device for treating residual water in ecological dredging of lake areas. Background Technology

[0002] The main construction contents of the lake area ecological dredging project include: environmentally friendly dredging, residual water treatment, and solidified soil disposal. Ecological dredging aims at ecological restoration, removing pollutants from the bottom sediment to the greatest extent possible while creating conditions for subsequent biotechnology intervention. It is an important part of ecological restoration projects in water resource protection.

[0003] Environmental dredging: The lake bottom sediment environmental dredging project uses an environmentally friendly cutter suction dredger for dredging, and the dredged sediment is transported to an onshore solidification site via pipeline. Wastewater treatment: The dredged sediment is solidified onshore using geotextile tubing, and the treated wastewater must meet discharge standards. Solidified soil disposal: The solidified soil is transported to a spoil disposal site for treatment and reclamation work is carried out.

[0004] After treatment, the wastewater enters the aeration and purification stage, where aeration technology is used to treat it. By increasing the oxygen supply and water mixing, the metabolism and growth of microorganisms are promoted, and the dissolved oxygen concentration in the wastewater is increased, thereby accelerating the degradation and removal of organic matter.

[0005] However, after the wastewater enters the aeration tank, the existing aeration devices in the aeration tank are all located in the middle of the aeration tank, while there are none at the edge of the aeration tank. This results in insufficient contact between the water and air at the edge of the aeration tank, which in turn affects wastewater treatment.

[0006] Therefore, the applicant has developed a new technical solution in the actual production process to solve the above-mentioned technical problems. Utility Model Content

[0007] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide an aeration device for treating residual water in lake ecological dredging, which has the advantage of enabling the water at the edge of the aeration tank to come into contact with air, thereby improving the sufficiency of contact between the water and air at the edge of the aeration tank.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] This utility model provides an aeration device for treating residual water in ecological dredging of lake areas, including an aeration tank and straight pipes arranged on the upper surface of the aeration tank and distributed along the length of the aeration tank opening. A blower for conveying air into the straight pipes is provided on the upper surface of the aeration tank. Multiple branch pipes are provided on the straight pipes and are spaced apart along the length of the straight pipes. Each branch pipe is connected to the straight pipe and extends into the aeration tank. The lower end of each branch pipe is connected to a flexible hose, and the end of each flexible hose away from the branch pipe is connected to an aeration element.

[0010] By adopting the above technical solution, the distribution of straight pipes along the edge of the aeration tank facilitates the delivery of air to each aeration element through flexible hoses via the branch pipes on the straight pipes. This allows the water at the edge of the aeration tank to come into contact with the air, thereby improving the adequacy of the contact between the water and the air at the edge of the aeration tank. The blower delivers air into the straight pipes, and the flexible hoses facilitate the movement of the aeration elements in the water.

[0011] Preferably, each of the branch pipes is equipped with a ball valve.

[0012] Preferably, one end of the straight pipe is closed, and the other end is connected to a blower located on the upper surface of the aeration tank;

[0013] Alternatively, both ends of the straight pipe are closed, and the fan is connected to the middle of the straight pipe through a tee pipe.

[0014] Preferably, the device further includes an installation frame for mounting the aeration element. The installation frame includes two parallel circular rings, one above the other, with different diameters. The upper circular ring has a smaller diameter. The two circular rings are connected by several inclined rods, and the inner rings of the upper circular ring are connected by several horizontal rods. The aeration element is mounted on the upper circular ring.

[0015] Preferably, the aeration element includes an aeration disc disposed on a circular ring above, and the hose is connected to the aeration disc;

[0016] Alternatively, the aeration element may include a hose with one end away from the branch pipe wrapped around an upper circular ring and connected to a crossbar by a cable tie, with several air outlet holes on the outer wall of the hose on the upper circular ring.

[0017] Preferably, when the straight pipe is located at the bottom of the aeration tank, the blower is located at the upper end of the aeration tank and is connected to one end of the straight pipe through a vertical pipe, and a floating block is installed inside the mounting frame.

[0018] The beneficial effects of this utility model are as follows: the distribution of straight pipes along the edge of the aeration tank facilitates the delivery of air to each aeration element through flexible hoses via the branch pipes on the straight pipes, thereby enabling the water at the edge of the aeration tank to come into contact with the air, thus improving the sufficiency of the contact between the water and the air at the edge of the aeration tank. The blower delivers air to the straight pipes, and the flexible hoses facilitate the movement of the aeration elements in the water. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0021] Figure 2 This is a schematic diagram illustrating the structure of the aeration components at the edges of the two aeration tanks in this embodiment.

[0022] Figure 3 This is a schematic diagram illustrating the structure of the mounting frame in this embodiment;

[0023] Figure 4 This is a schematic diagram illustrating the structure of the floating block in this embodiment;

[0024] Figure 5 This is a schematic diagram illustrating the structure of the straight pipe at the bottom of the aeration tank in this embodiment.

[0025] Explanation of reference numerals in the attached figures:

[0026] In the diagram: 1. Straight pipe; 11. Fan; 12. Branch pipe; 121. Hose; 13. Ball valve; 14. Circular ring; 141. Inclined rod; 142. Horizontal rod; 143. Aeration disc; 15. Vertical pipe; 16. Floating block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] An aeration device for treating wastewater from ecological dredging in lake areas, such as Figure 1 and Figure 2The aeration tank includes an aeration tank and a straight pipe 1 installed on the upper surface of the aeration tank and distributed along the length of the aeration tank opening. A blower 11 is installed on the upper surface of the aeration tank to transport air into the straight pipe 1. The blower 11 is a vortex blower 11. The straight pipe 1 is provided with multiple branch pipes 12 distributed at intervals along the length of the straight pipe 1. Each branch pipe 12 is connected to the straight pipe 1 and extends into the aeration tank. If the straight pipe 1 is on the upper surface of the aeration tank, then the branch pipes 12 extend downward at an angle. The lower end of each branch pipe 12 is connected to a flexible hose 121. The end of each flexible hose 121 away from the branch pipe 12 is connected to an aeration element.

[0029] like Figure 1 and Figure 2 The distribution of straight pipe 1 along the edge of the aeration tank facilitates the delivery of air to each aeration element via hose 121 through each branch pipe 12 on the straight pipe 1, thereby enabling the water at the edge of the aeration tank to come into contact with the air, thus improving the adequacy of the contact between the water and the air at the edge of the aeration tank. The blower 11 delivers air to the straight pipe 1, and the hose 121 facilitates the movement of the aeration element in the water.

[0030] like Figure 1 and Figure 2 If there are two adjacent aeration tanks, then the branch pipes 12 are distributed on the straight pipe 1 at intervals on the left and right, respectively delivering air to the edges of the two aeration tanks.

[0031] like Figure 1 and Figure 2 Each branch pipe 12 is equipped with a ball valve 13 to facilitate the opening and closing of each branch pipe 12.

[0032] like Figure 1 and Figure 2 When the straight pipe 1 is located on the upper surface of the aeration tank, one end of the straight pipe 1 is closed, and the other end is connected to the blower 11 located on the upper surface of the aeration tank; or, both ends of the straight pipe 1 are closed, and the blower 11 is connected to the middle of the straight pipe 1 through a three-way pipe.

[0033] like Figure 1 and Figure 3 It also includes an installation frame for installing aeration components. The installation frame includes two parallel circular rings 14, which have different diameters but are coaxially distributed. The upper circular ring 14 has a smaller diameter. The upper and lower circular rings 14 are connected by several inclined rods 141. The inner rings of the upper circular ring 14 are connected by several horizontal rods 142. That is, each horizontal rod 142 is distributed along the diameter of the upper circular ring 14 and intersects at the center of the upper circular ring 14. The aeration components are installed on the upper circular ring 14.

[0034] like Figure 4 The aeration element includes an aeration disc 143 disposed on the upper circular ring 14, and a hose 121 connected to the aeration disc 143.

[0035] like Figure 1 and Figure 3 Alternatively, the aeration element may include wrapping one end of the hose 121 away from the branch pipe 12 around the upper circular ring 14, and binding it to the crossbar 142 and the upper circular ring 14 with cable ties. Several air outlets are provided on the outer wall of the hose 121 located on the upper circular ring 14. In this case, the gas inside the hose 121 bursts out from the upper circular ring 14, acting as an aeration disc 143, thus reducing costs.

[0036] like Figure 1 and Figure 5 When the straight pipe 1 is located at the bottom of the aeration tank, the blower 11 is located at the upper end of the aeration tank and is connected to one end of the straight pipe 1 through the vertical pipe 15. A floating block 16 is installed in the mounting frame. At this time, the straight pipe 1 is located at the bottom of the aeration tank, while the branch pipe 12 is distributed vertically upward. The flexible hose 121 is also in a straight state due to the floating block 16. At this time, the upper circular ring 14 is distributed upward and close to the upper water surface of the aeration tank. As the pressure of the air delivered by the blower 11 to the straight pipe 1 changes, the upper circular ring 14 will move up and down, thereby increasing the contact area between the water and the air. When the aeration element is the aeration disc 143, the flexible hose 121 connected to the aeration disc 143 passes through the floating block 16.

[0037] When the straight pipe 1 is located on the upper surface of the aeration tank, the decision on whether to install the floating block 16 inside the installation frame depends on the depth of the edge of the aeration tank.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An aeration device for treating wastewater from ecological dredging in lake areas, characterized in that, The aeration tank includes an aeration tank and a straight pipe (1) arranged on the upper surface of the aeration tank and distributed along the length of the aeration tank opening. A blower (11) is provided on the upper surface of the aeration tank to deliver air into the straight pipe (1). A plurality of branch pipes (12) are provided on the straight pipe (1) and distributed at intervals along the length of the straight pipe (1). Each branch pipe (12) is connected to the straight pipe (1) and extends into the aeration tank. The lower end of each branch pipe (12) is connected to a flexible hose (121). The end of each flexible hose (121) away from the branch pipe (12) is connected to an aeration element.

2. The aeration device for treating wastewater in ecological dredging of a lake area as described in claim 1, characterized in that, Each of the branch pipes (12) is equipped with a ball valve (13).

3. The aeration device for treating residual water in ecological dredging of a lake area as described in claim 1, characterized in that, One end of the straight pipe (1) is closed, and the other end is connected to the blower (11) located on the upper surface of the aeration tank; Alternatively, both ends of the straight pipe (1) are closed, and the fan (11) is connected to the middle of the straight pipe (1) through a three-way pipe.

4. The aeration device for treating wastewater from ecological dredging of a lake area as described in claim 1, characterized in that, It also includes an installation frame for installing aeration components. The installation frame includes two parallel circular rings (14) with different diameters. The diameter of the upper circular ring (14) is smaller. The upper and lower circular rings (14) are connected by several inclined rods (141). The inner rings of the upper circular ring (14) are connected by several cross rods (142). The aeration components are installed on the upper circular ring (14).

5. The aeration device for treating residual water in ecological dredging of a lake area as described in claim 4, characterized in that, The aeration element includes an aeration disc (143) disposed on a circular ring (14) above, and the hose (121) is connected to the aeration disc (143); Alternatively, the aeration device may include a hose (121) with one end away from the branch pipe (12) wrapped around the upper circular ring (14) and connected to the crossbar (142) by a cable tie, with a number of air outlet holes on the outer wall of the hose (121) on the upper circular ring (14).

6. The aeration device for treating residual water in ecological dredging of a lake area as described in claim 5, characterized in that, When the straight pipe (1) is located at the bottom of the aeration tank, the blower (11) is located at the upper end of the aeration tank and is connected to one end of the straight pipe (1) through the vertical pipe (15). A floating block (16) is installed in the mounting frame.

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