Aeration precipitation device for sewage treatment

Abstract

The utility model discloses an aeration precipitation device for sewage treatment, which comprises a sewage treatment box and a waterproof motor, a circular through groove is formed in the center of the bottom of the sewage treatment box in a penetrating manner, an arc-shaped collecting groove is welded on the inner wall of the circular through groove, and a blow-off pipe is welded on the outer wall of the bottom of the arc-shaped collecting groove. An electric control ball valve is fixed to the bottom of the blow-off pipe through a bolt, a U-shaped communicating pipe is arranged at the bottom of the sewage treatment tank, the inner wall of the U-shaped communicating pipe is connected with an oxygenation pump through a guide pipe, and the inner wall of the bottom of the U-shaped communicating pipe communicates with aeration frustum shells which are distributed at equal intervals; when sediments at the bottom of the sewage treatment tank are treated, the stirring blades are driven by the waterproof motor to continuously rotate, so that the sediments are gathered in the center of the bottom of the sewage treatment tank under the action of centrifugal force, and the mud scraping plates are arranged on the two sides for movable mud scraping treatment, so that the sediments can be quickly and effectively cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially, relate to a kind of aeration precipitation device for sewage treatment. BACKGROUND

[0002] With the advance of urbanization, the increasing water consumption, domestic wastewater treatment problem increasingly highlights, therefore need to handle the waste sewage generated in time, and wastewater treatment is to use physical, chemical and biological methods to treat wastewater, make wastewater purification, reduce pollution, so as to achieve wastewater recycling, reuse, make full use of water resources. Forced air is introduced into sewage, so that the contact surface of organic matter and microorganism and dissolved oxygen increases, organic matter in sewage is oxidized and decomposed, and this process of forced oxygenation in sewage is called aeration. In the process of aeration and oxygenation of sewage treatment, the existing aeration device still has some problems in use:

[0003] 1. Insufficient aeration quantity. In the process of oxygenation reaction of the existing aeration device to sewage, due to insufficient aeration quantity, and the generated air bubble is large, so that the contact reaction area with sewage is small under the same oxygenation quantity, so as to cause insufficient aeration quantity, and the particulate matter in sewage is easy to block the aeration hole.

[0004] 2. Difficult to clean. In the process of sewage treatment, in the process of treating the sediment in sewage, since the sediment is gathered in the bottom inner wall of the treatment tank, direct salvage treatment will cause the sediment to disperse, so as to cause the sediment in the bottom inner wall of the treatment tank to be difficult to clean. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art, and provides an aeration precipitation device for sewage treatment.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides an aeration precipitation device for sewage treatment, including sewage treatment tank and waterproof motor, the bottom center position of sewage treatment tank is through the circular through slot of opening, and the inner wall of circular through slot is welded with arc collection groove, the outer wall of arc collection groove bottom is welded with sewage pipe, and the bottom of sewage pipe is fixed with electric control ball valve through bolt, the bottom of sewage treatment tank is equipped with U type communication pipe, and the inner wall of U type communication pipe is connected with oxygenation pump through the pipeline, the bottom inner wall of U type communication pipe is connected with the aeration cone frustum shell of equidistance distribution, and the inner wall of aeration cone frustum shell is through the first aeration hole of equidistance distribution of opening, the top inner wall of U type communication pipe is connected with the sealing cover shell of equidistance distribution, and the shaft center of sealing cover shell is rotatably connected with the rotating pipe, the outer wall of rotating pipe's four all is welded with the connecting pipe of equidistance distribution, and the inner wall of connecting pipe is through the second aeration hole of equidistance distribution of opening.

[0008] As a further scheme of the utility model: the circular through slot is provided with stirring paddle above, and the shaft center of stirring paddle is connected with waterproof motor.

[0009] As a further scheme of the utility model: the rotating pipe of sealing cover shell is welded with the sealing baffle of equidistance distribution on the four all outer walls, and the size of sealing baffle is adapted to the size of sealing cover shell inner wall, and the inner wall of one side of sealing cover shell and U type communication pipe are connected with the flow guide air pipe.

[0010] As a further scheme of the utility model: the outer wall of the guide block is welded with the mud scraping plate, and the size of mud scraping plate is adapted to the size of sewage treatment tank inner wall.

[0011] As a further scheme of the utility model: the shaft center of guide block is screwed with bidirectional screw rod, and the shaft center of bidirectional screw rod is connected with servo motor.

[0012] As a further scheme of the utility model: the waterproof motor, oxygenation pump and servo motor are connected with PLC controller through signal line, and PLC controller is connected with external power supply through wire.

[0013] As a further scheme of the utility model: the side wall of sealing cover shell and flow guide air pipe form 45 angle, and the rotation direction of rotating pipe is consistent.

[0014] Compared with the prior art, the utility model provides an aeration precipitation device for sewage treatment, has the following beneficial effects:

[0015] 1. The sewage treatment aeration precipitation device of the design, through setting multiple equal distance distribution aeration cone frustum shells at the bottom of the U-shaped communication pipe, continuously downward oxygenation aeration, not only can avoid the aeration hole being blocked by sludge, but also can improve the aeration amount, and multiple groups of connecting pipes are arranged at the upper portion to carry out secondary aeration treatment, so that the aeration effect can be further improved.

[0016] 2. The sewage treatment aeration precipitation device, in the process of aeration treatment of sewage, the generated gas is used to drive the sealing baffle to rotate, so as to drive the rotating pipe to rotate and make the oxygen bubbles fully contact with the sewage, so as to improve the overall aeration effect.

[0017] 3. The sewage treatment aeration precipitation device, when the bottom sediment of the sewage treatment tank is treated, the waterproof motor is used to drive the stirring paddle to continuously rotate, so that the centrifugal force is used to gather the sediment at the center of the bottom of the sewage treatment tank, and the mud scraping plate is arranged on the both sides to move and scrape the mud, so that the sediment can be quickly and effectively cleaned.

[0018] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the aeration precipitation device for sewage treatment.

[0020] Figure 2 It is a whole structure top view of the aeration precipitation device for sewage treatment.

[0021] Figure 3 It is a first perspective view structure schematic view of the aeration precipitation device for sewage treatment.

[0022] Figure 4 It is a partial structure schematic view of the aeration precipitation device for sewage treatment.

[0023] In the figure: 1, sewage treatment tank; 2, circular through slot; 3, arc-shaped collection groove; 4, sewage pipe; 5, electric control ball valve; 6, stirring paddle; 7, waterproof motor; 8, U-shaped communication pipe; 9, oxygenation pump; 10, aeration cone frustum shell; 11, first aeration hole; 12, sealing cover; 13, rotating pipe; 14, connecting pipe; 15, second aeration hole; 16, sealing baffle; 17, flow guide pipe; 18, guide rail; 19, mud scraping plate; 20, bidirectional screw rod; 21, servo motor. DETAILED DESCRIPTION

[0024] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0025] Embodiment 1:

[0026] The utility model provides an aeration precipitation device for sewage treatment, and the utility model discloses as shown in Figures 1-4 The bottom center position of sewage treatment tank 1 is provided with a circular through slot 2, and the inner wall of the circular through slot 2 is welded with an arc-shaped collecting groove 3, the outer wall of the bottom of the arc-shaped collecting groove 3 is welded with a blow-off pipe 4, and the bottom of the blow-off pipe 4 is fixed with an electric control ball valve 5 through bolts, the bottom of sewage treatment tank 1 is provided with a U-shaped communication pipe 8, and the inner wall of the U-shaped communication pipe 8 is connected with an oxygenation pump 9 through a conduit, the bottom inner wall of the U-shaped communication pipe 8 is connected with aeration cone frustum shells 10 distributed at equal intervals, and the inner wall of the aeration cone frustum shells 10 is provided with first aeration holes 11 distributed at equal intervals, the top inner wall of the U-shaped communication pipe 8 is connected with sealing cover shells 12 distributed at equal intervals, and the shaft center of the sealing cover shells 12 is rotationally connected with a rotating through pipe 13, the outer wall of the rotating through pipe 13 is welded with connecting pipes 14 distributed at equal intervals, and the inner wall of the connecting pipes 14 is provided with second aeration holes 15 distributed at equal intervals.

[0027] By setting a plurality of aeration cone frustum shells 10 distributed at equal intervals at the bottom of the U-shaped communication pipe 8, continuous downward oxygenation aeration can not only avoid the blockage of aeration holes by sludge, but also improve the aeration amount, and a plurality of connecting pipes 14 are arranged at the upper part for secondary aeration treatment, so that the aeration effect can be further improved.

[0028] The circular through slot 2 is provided with a stirring paddle 6 above, and the shaft center of the stirring paddle 6 is connected with a waterproof motor 7, the outer wall of the rotating through pipe 13 is welded with sealing baffles 16 distributed at equal intervals, and the size of the sealing baffles 16 is matched with the size of the inner wall of the sealing cover shell 12, and the inner wall of one side of the sealing cover shell 12 is connected with a flow guide air pipe 17 between the U-shaped communication pipe 8.

[0029] The outer wall of the guide block is welded with a mud scraping plate 19, and the size of the mud scraping plate 19 is matched with the size of the inner wall of the sewage treatment tank 1.

[0030] The shaft center of the guide block is screwed with a bidirectional screw rod 20, and the shaft center of the bidirectional screw rod 20 is connected with a servo motor 21.

[0031] In the process of aeration treatment of sewage, the generated gas is used to drive the sealing baffle 16 to rotate, thereby driving the rotating pipe 13 to rotate and aerate, so that the oxygen bubbles can fully contact with the sewage, thereby improving the overall aeration effect.

[0032] In use, first, the aeration and sedimentation device is assembled in its entirety, and then connected to an external power supply. Then, the sewage to be treated is poured into the sewage treatment tank 1. At this time, the sewage is allowed to stand for a short time for sedimentation treatment. Then, the waterproof motor 7 is started to drive the stirring paddle 6 to rotate, so that the large sediment particles are gathered in the arc-shaped collection tank 3 under the action of centrifugal force. Then, the electric control ball valve 5 is opened to quickly discharge part of the sediment. Then, the oxygen pump 9 is started to deliver oxygen to the bottom aeration cone shell 10 through the U-shaped connecting pipe 8. The oxygen is discharged from the first aeration hole 11, and the remaining oxygen is delivered to the rotating pipe 13 at the top through the connecting pipe 14, and discharged from the second aeration hole 15 of the connecting pipe 14 to realize aeration. In order to improve the aeration effect, part of the gas is blown along the inclined direction through the flow guide pipe 17 to drive the sealing baffle 16 to rotate, thereby driving the rotating pipe 13 to rotate, so that the aeration amount is more uniformly distributed. After the aeration is completed, when the sediment needs to be cleaned, the servo motor 21 is started to drive the two mud scraping plates 19 to slowly move to gather the sediment at the bottom to the arc-shaped collection tank 3 for discharge.

[0033] Embodiment 2

[0034] An aeration and sedimentation device for sewage treatment, as shown in Figures 1-4 The waterproof motor 7, the oxygen pump 9 and the servo motor 21 are all connected with a PLC controller through signal lines, and the PLC controller is connected with an external power supply through wires. The side wall of the sealing shell 12 and the flow guide pipe 17 form an angle of 45°, and the rotating direction of the rotating pipe 13 is consistent.

[0035] In use, when the sediment at the bottom of the sewage treatment tank 1 is treated, the waterproof motor 7 is used to drive the stirring paddle 6 to rotate continuously, so that the sediment is gathered at the center of the bottom of the sewage treatment tank under the action of centrifugal force. The two sides are also provided with mud scraping plates 19 to move and scrape the mud, so that the sediment can be quickly and effectively cleaned.

[0036] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent substitutions or changes to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An aeroflocculator for sewage treatment, comprising a sewage treatment tank (1) and a water-proof motor (7), characterized in that, The sewage treatment tank (1) is provided with a circular through slot (2) penetrating through the center of the bottom, and an arc-shaped collection groove (3) is welded to the inner wall of the circular through slot (2); the bottom outer wall of the arc-shaped collection groove (3) is welded with a sewage discharge pipe (4), and the bottom of the sewage discharge pipe (4) is fixed with an electric control ball valve (5) through bolts; the bottom of the sewage treatment tank (1) is provided with a U-shaped communication pipe (8), and the inner wall of the U-shaped communication pipe (8) is connected with an oxygenation pump (9) through a conduit; the bottom inner wall of the U-shaped communication pipe (8) is connected with aeration cone frustum shells (10) distributed at equal intervals, and the inner wall of the aeration cone frustum shells (10) is penetrated with first aeration holes (11) distributed at equal intervals; the top inner wall of the U-shaped communication pipe (8) is connected with sealed cover shells (12) distributed at equal intervals, and the shaft of the sealed cover shells (12) is rotatably connected with a rotating pipe (13); the outer wall of the rotating pipe (13) is welded with connecting pipes (14) distributed at equal intervals, and the inner wall of the connecting pipes (14) is penetrated with second aeration holes (15) distributed at equal intervals.

2. The apparatus according to claim 1, wherein A stirring paddle (6) is arranged above the circular through slot (2), and a waterproof motor (7) is connected to the shaft of the stirring paddle (6).

3. The apparatus according to claim 1, wherein The outer wall of the rotating pipe (13) is welded with sealed baffles (16) distributed at equal intervals around the sealed cover shells (12), and the size of the sealed baffles (16) is matched with the size of the inner wall of the sealed cover shells (12); a flow guide air pipe (17) is connected between the inner wall of one side of the sealed cover shells (12) and the U-shaped communication pipe (8).

4. The apparatus according to claim 1, wherein A guide rail (18) is fixed to the outer wall of one side of the top of the sewage treatment tank (1) along the length direction, and symmetrically distributed guide blocks are slidingly inserted into the inner wall of the guide rail (18); a mud scraping plate (19) is welded to the outer wall of the guide blocks, and the size of the mud scraping plate (19) is matched with the size of the inner wall of the sewage treatment tank (1).

5. The apparatus according to claim 4, wherein A bidirectional screw rod (20) is screwed to the shaft of the guide blocks, and a servo motor (21) is connected to the shaft of the bidirectional screw rod (20).

6. The apparatus according to claim 5, wherein The waterproof motor (7), the oxygenation pump (9) and the servo motor (21) are all connected with a PLC controller through signal lines, and the PLC controller is connected with an external power supply through wires.

7. The apparatus according to claim 3, wherein The side wall of the sealed cover shells (12) and the flow guide air pipe (17) form an included angle of 45°, and the rotating direction of the rotating pipe (13) is consistent.

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