Turbulent flow type aeration treatment device for sewage treatment tank

Abstract

The utility model discloses a turbulent flow type aeration treatment device for a sewage treatment tank, and belongs to the technical field of aeration components. The aeration treatment device comprises an aeration disc; the aeration holes are formed in the surface of the aeration disc and are communicated with the interior of the aeration disc; the plurality of upper fan blades obliquely extend to the circle center along the outer ring surface of the aeration disc and are spirally and uniformly distributed at intervals; the connecting column is arranged at the bottom of the aeration disc and is communicated with the inside of the aeration disc; and the base is used for driving the aeration disc to rotate and can input external compressed air into the aeration disc. According to the turbulent flow type aeration treatment device for the sewage treatment tank, when the aeration disc rotates through the arrangement of the upper fan blades, a relatively large turbulent flow effect can be generated, the aeration disc has an impeller form, and when compressed air releases superfine bubbles, the aeration disc actively rotates, so that a bubble group spirally diffuses in a water body, the gas-liquid contact time is prolonged, and the oxygen mass transfer efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aeration assembly technical field, especially in sewage treatment tank is with the turbulence formula aeration treatment device. BACKGROUND

[0002] In water treatment process, aeration equipment is the key equipment of water biological pretreatment, sewage biological treatment. Its function is to take certain technical measures, through aeration device, oxygen in air is transferred to the liquid in aeration tank, to supply the oxygen amount required by aerobic metabolism, at the same time, water in the tank is mixed fully and uniformly, to reach the purpose of biological treatment.

[0003] The existing aeration disc is usually fixedly installed at the bottom of the aeration tank, but lacks active water flow disturbance ability, leading to uneven bubble distribution, limited oxygen dissolving efficiency, especially in deep water area or high viscosity liquid, easy to form oxygen dissolving dead angle. UTILITY MODEL CONTENT

[0004] To solve the above technical problem, the utility model provides a turbulence formula aeration treatment device for sewage treatment tank.

[0005] The utility model discloses a turbulence formula aeration treatment device for sewage treatment tank, which comprises an aeration disc, a plurality of aeration holes are formed on the surface of the aeration disc and are in communication with the inside of the aeration disc, a plurality of upper fan blades extend to the center of the aeration disc in an inclined manner along the outer ring surface of the aeration disc, and the plurality of upper fan blades are evenly spaced in a spiral manner, a connecting column is arranged at the bottom of the aeration disc and is in communication with the inside of the aeration disc, and a base is used to drive the aeration disc to rotate and input compressed air from the outside to the inside of the aeration disc.

[0006] Further, the lower surface of the aeration disc is provided with lower fan blades which are mirror images of the upper fan blades.

[0007] Further, the base comprises a sealed box body, a gas delivery assembly arranged in the box body for aeration of the aeration disc, and a driving assembly for driving the aeration disc to rotate.

[0008] Further, the gas delivery assembly comprises a connecting ring arranged on the sealed box body and in rotational sealing connection with the connecting column, an air pipe in fixed communication with the connecting column, a fixed pipe in rotational connection with the air pipe and in sealing communication with the air pipe, and a delivery pipe connected with the fixed pipe.

[0009] Further, the sealed box body is provided with an air inlet capable of connecting external pipelines, and the output end of the air inlet is in communication with the delivery pipe.

[0010] Further, the driving assembly comprises a bevel gear ring fixedly connected with the aeration pipe, a bevel gear engaged with the bevel gear ring, and a driving motor arranged inside the sealing box body for driving the bevel gear to rotate.

[0011] Further, the sealing box body is internally provided with a partition plate for enclosing the driving motor.

[0012] Further, the connecting ring is internally provided with a groove, and a bearing is arranged in the groove, and an inner ring of the bearing is fixedly connected with the connecting column.

[0013] Further, the connecting ring is internally provided with a groove, and a bearing is arranged in the groove, and an inner ring of the bearing is fixedly connected with the connecting column.

[0014] Further, the sealing box body is internally provided with a partition plate for enclosing the driving motor.

[0015] The beneficial technical effects of the utility model are as follows: the setting of the upper fan blade makes the aeration disc rotate and generate a large disturbance effect; the aeration disc has a blade shape, releases superfine air bubbles while rotating, makes the air bubble group spiral diffuse in the water body, prolongs the gas-liquid contact time, improves the oxygen mass transfer efficiency, forms an axial and radial composite flow field, eliminates the oxygen dissolution dead angle of the traditional static aeration, and is especially suitable for deep water ponds or high-suspended solid wastewater and improves the bottom oxygen dissolution uniformity. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural front view of the utility model;

[0017] Figure 2 is a structural front view of the utility model;

[0018] Figure 3 is a structural front view of the utility model;

[0019] Figure 4 is a structural front view of the utility model;

[0020] Figure 5 is a structural front view of the utility model.

[0021] Corresponding component names represented by numbers and letters in the figure:

[0022] 1, aeration disc; 11, aeration hole; 12, upper blade; 13, connecting column; 14, lower blade; 2, sealing box; 21, connecting ring; 22, air pipe; 23, fixed pipe; 24, conveying pipe; 25, air inlet; 26, bearing; 27, sealing strip; 28, sealing groove; 3, bevel gear ring; 31, bevel gear; 32, driving motor; 33, partition; 4, mounting lug. DETAILED DESCRIPTION

[0023] In order to make the technical means of the utility model more clearly understood, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below in conjunction with the drawings and examples, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0024] Referring to the drawings Figures 1-5 As shown in the drawings, the turbulence type aeration treatment device for sewage treatment tank of example one comprises aeration disc 1;A plurality of aeration holes 11 are opened on the surface of the aeration disc 1, which are communicated with the inside of the aeration disc 1;A plurality of upper blades 12 are inclined along the outer ring surface of the aeration disc 1 to the center, and the plurality of upper blades 12 are evenly distributed in a spiral shape;Connecting column 13 is arranged at the bottom of the aeration disc 1 and communicated with the inside thereof;The base is used for driving the aeration disc 1 to rotate and inputting compressed air from outside to the inside of the aeration disc 1.

[0025] Since the blades on the aeration disc 1 are inclined and distributed in a spiral shape, when the aeration disc 1 rotates, a large turbulence effect is generated, the aeration disc 1 has the shape of an impeller, releases superfine bubbles while rotating actively, makes the bubble group spread in a spiral shape in the water body, prolongs the contact time of gas and liquid, improves the oxygen mass transfer efficiency, the rotating aeration disc 1 forms a composite flow field of axial and radial directions, eliminates the dissolved oxygen dead angle of traditional static aeration, and is especially suitable for deep pond or high suspended solid wastewater, improves the uniformity of bottom dissolved oxygen, and the centrifugal force generated when the impeller-shaped aeration disc 1 rotates assists the gas shear, the bubble diameter is further refined to 0.1-0.5mm (the traditional aeration disc 1 is 1-3mm), the specific surface area is increased, and the oxygen utilization rate is improved.

[0026] Further, the lower surface of the aeration disc 1 is provided with lower blades 14 which are mirror images of the upper blades 12.

[0027] The lower blades 14 can disturb the water bottom when the aeration disc 1 rotates, so that the bottom is not easy to produce bottoming, and the efficiency is improved.

[0028] Further, the base comprises a sealing box 2;Gas conveying assembly for realizing aeration of the aeration disc 1 is arranged in the box;And the driving assembly for driving the aeration disc 1 to rotate.

[0029] The gas feeding assembly can feed compressed air from the outside into the aeration disc 1, so that the aeration disc 1 transmits air bubbles, and the driving assembly can drive the aeration disc 1 to rotate, facilitating the disturbance of water flow.

[0030] Further, the gas feeding assembly comprises a connecting ring 21 arranged on the sealed box 2 and in rotatable sealing connection with the connecting column 13, a gas pipe 22 in fixed communication with the connecting column 13, a fixed pipe 23 in rotatable connection with the gas pipe 22 and in sealing communication with the gas pipe 22, and a conveying pipe 24 connected with the fixed pipe 23.

[0031] The connecting ring 21 can be in rotatable connection with the connecting column 13, and the sewage cannot enter the sealed box 2, and the fixed pipe 23 is also connected with the gas pipe 22 in a rotatable sealing manner, so that the compressed gas inside the gas pipe 22 can also be input when the gas pipe 22 rotates, and then conveyed to the aeration disc 1 through the connecting column 13.

[0032] Further, the sealed box 2 is externally provided with an air inlet 25 capable of connecting with an external pipeline, and the output end of the air inlet 25 is in communication with the conveying pipe 24.

[0033] The compressed gas feeding pipe from the outside can be connected with the air inlet 25, so that the compressed gas enters the conveying pipe 24 through the air inlet, and then is conveyed to the fixed pipe 23, the gas pipe 22, the connecting column 13, and the aeration disc 1.

[0034] Further, the driving assembly comprises a bevel gear ring 3 fixedly connected with the gas pipe 22, a bevel gear 31 in meshing connection with the bevel gear ring 3, and a driving motor 32 arranged inside the sealed box 2 and used for driving the bevel gear 31 to rotate.

[0035] The driving motor 32 can drive the bevel gear 31 to rotate when working, and the bevel gear 31 can drive the bevel gear ring 3 to rotate when rotating, so as to drive the gas pipe 22 to rotate, and since the bevel gear ring 3 is in a ring structure, the fixed pipe 23 is not affected.

[0036] Further, the sealed box 2 is internally provided with a partition plate 33 used for enclosing the driving motor 32.

[0037] The driving motor 32 is located in a sealed environment through the partition plate 33, and if the connecting ring 21 leaks water, the normal work of the driving motor 32 is not affected.

[0038] Further, a bearing 26 is arranged in a groove in the inner ring face of the connecting ring 21, and the inner ring of the bearing 26 is fixedly connected with the connecting column 13.

[0039] The bearing 26 can drive the connecting ring 21 to be in rotatable connection with the connecting column 13.

[0040] Further, the inner ring surface of the connecting ring 21 is fixedly connected with a ring-shaped sealing strip 27, and the outer ring surface of the connecting column 13 is provided with a sealing groove 28 matched with the sealing strip 27.

[0041] The cooperation of the sealing strip 27 and the sealing groove 28 plays a role of isolating sewage, preventing the sewage from entering the sealing box body 2.

[0042] Further, the sealing box body 2 is provided with a mounting lug 4, and the mounting lug 4 can enable the sealing box body 2 to be fixed to the bottom of the aeration tank through bolts and other fasteners.

[0043] The above only is the preferred embodiment of the present application, and is not used for limiting the present application, it should be pointed out that, for ordinary skilled in the art, on the premise of not departing from the technical principles of the present application, can also make a number of improvements and modifications, these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A turbulent aeration treatment device for a sewage treatment pond, characterized in that, The utility model relates to an aeration device, including: An aeration disc (1); A plurality of aeration holes (11) are arranged on the surface of the aeration disc (1) and communicate with the inside of the aeration disc (1); A plurality of upper blades (12) extend to the center of the aeration disc (1) along the outer ring surface of the aeration disc (1) in an inclined manner, and the plurality of upper blades (12) are evenly spaced in a spiral manner; A connecting column (13) is arranged at the bottom of the aeration disc (1) and communicates with the inside of the aeration disc (1); A base is used for driving the aeration disc (1) to rotate and inputting compressed air from the outside to the inside of the aeration disc (1).

2. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 1, characterized by The lower surface of the aeration disc (1) is provided with lower blades (14) which are mirror images of the upper blades (12).

3. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 1, characterized by The base comprises a sealed box body (2), a gas delivery assembly arranged in the box body for aeration of the aeration disc (1), and a driving assembly for driving the aeration disc (1) to rotate.

4. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 3, characterized by The gas delivery assembly comprises a connecting ring (21) arranged on the sealed box body (2) and rotatably and sealingly connected with the connecting column (13), an air pipe (22) fixedly connected with the connecting column (13), a fixed pipe (23) rotatably connected with the air pipe (22) and sealingly connected with the air pipe (22), and a delivery pipe (24) connected with the fixed pipe (23).

5. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 4, characterized by An air inlet (25) capable of being connected with an external pipeline is arranged on the outside of the sealed box body (2), and the output end of the air inlet (25) communicates with the delivery pipe (24).

6. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 4, characterized by The driving assembly comprises a bevel gear ring (3) fixedly connected with the air pipe (22), a bevel gear (31) engaged with the bevel gear ring (3), and a driving motor (32) arranged in the sealed box body (2) for driving the bevel gear (31) to rotate.

7. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 6, characterized by A partition plate (33) is arranged in the sealed box body (2) for closing the driving motor (32).

8. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 4, characterized by A bearing (26) is arranged in the groove of the inner ring surface of the connecting ring (21), and the inner ring of the bearing (26) is fixedly connected with the connecting column (13).

9. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 4, characterized by The inner ring surface of the connecting ring (21) is fixedly connected with an annular sealing strip (27), and the outer ring surface of the connecting column (13) is provided with a sealing groove (28) matched with the sealing strip (27).

10. The turbulence-type aeration treatment device for a sewage treatment tank according to claim 3, characterized by An installation lug (4) is arranged on the sealed box body (2).

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