An activated sludge reactor

Abstract

The utility model relates to the technical field of sewage treatment, and particularly discloses an activated sludge reactor. The sludge inside a reaction barrel will settle to the bottom of the reaction barrel under the action of gravity. The second motor is started and the meshing of the fourth gear and the first gear will drive the spiral rod to rotate. The rotating spiral rod will lift the sludge settled to the bottom of the reaction barrel to the top of the lifting pipe through the lifting pipe. When the sludge reaches the top of the lifting pipe, it will fall above a distribution plate. Since the distribution plate is an inclined surface, the sludge will slide down along the distribution plate. During the sliding process, if the sludge slides to the distribution hole, it will fall back into the inside of the reaction barrel. The multiple distribution holes on the distribution plate can redistribute the sludge. By rotating the spiral rod, the precipitated sludge is lifted to a high place again. The sludge is redistributed through the distribution plate and the distribution holes, so that the sludge can be fully mixed with wastewater, thereby achieving the effect of fully activating the wastewater.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an activated sludge reactor. Background Art

[0002] Activated sludge is a general term for microbial communities and the organic and inorganic substances they are attached to. Activated sludge can be divided into aerobic activated sludge and anaerobic granular activated sludge. Activated sludge is mainly used to treat sewage and wastewater.

[0003] Existing Chinese patent: An activated sludge reactor for sewage treatment, patent number: CN216890291U, including a reaction tank, a sedimentation tank, a sludge lifting pump, a sewage inlet, a sewage outlet, a fixed plate, an aeration device, a driving wheel, a crossbeam, a power transmission device and a mud scraping device, the sedimentation tank is located at the bottom of the reaction tank, the sludge lifting pump is arranged in the sedimentation tank, the sewage inlet is arranged at the upper part of the reaction tank, the sewage outlet is arranged at the lower part of the reaction tank, the fixed plate is arranged on the inner wall of the reaction tank, the aeration device is arranged on the fixed plate, the driving wheel is connected to the aeration device, the crossbeam is arranged at the upper end of the reaction tank, the power transmission device is arranged on the crossbeam, and the mud scraping device is connected to the power transmission device and is located inside the reaction tank. The utility model belongs to the technical field of sewage treatment, specifically refers to an activated sludge reactor for sewage treatment that can timely remove and discharge the sludge after reaction precipitation and greatly improve the reaction efficiency.

[0004] However, during the implementation of the above technical solution, it was found that at least the following technical problems exist: in the above reactor, the sludge sedimentation speed is too fast, and when wastewater is injected, the precipitated sludge is difficult to fully activate the wastewater. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies of the prior art, the utility model provides an activated sludge reactor to solve the technical problem that the sludge sedimentation speed of the above reactor is too fast and when wastewater is injected, the precipitated sludge is difficult to fully activate the wastewater.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] An activated sludge reactor comprises a reaction barrel, a lifting pipe is fixedly installed inside the reaction barrel, a spiral rod is rotatably installed inside the lifting pipe, a distribution plate is fixedly installed on the top of the lifting pipe, a plurality of distribution holes are opened on the distribution plate, a gas distribution plate is rotatably installed on the top of the reaction barrel, a vacuum pump is fixedly installed on the top of the gas distribution plate, a second gear is fixedly installed on the top of the gas distribution plate; a plurality of air inlet pipes of different lengths are provided at the bottom of the gas distribution plate, a first motor is fixedly installed on the top of the reaction barrel, a second motor is fixedly installed on the top of the reaction barrel, a third gear is fixedly installed on the bottom of the first motor, and a fourth gear is fixedly installed on the bottom of the second motor; the third gear is meshed with the second gear.

[0010] Preferably: a first gear is fixedly mounted on the top end of the spiral rod; the first gear is meshed with the fourth gear.

[0011] Preferably: a support frame is fixedly mounted on the bottom end of the reaction barrel.

[0012] (III) Beneficial effects

[0013] 1. Inject wastewater through the opening at the side of the reaction barrel. When in use, the sludge inside the reaction barrel will settle to the bottom of the reaction barrel due to gravity. The second motor will start and the fourth gear will mesh with the first gear to drive the spiral rod to rotate. The rotating spiral rod will lift the sludge settled at the bottom of the reaction barrel to the top of the lifting pipe through the lifting pipe. When the sludge reaches the top of the lifting pipe, it will fall on the distribution plate. Since the distribution plate is an inclined surface, the sludge will slide down along the distribution plate. During the sliding process, if the sludge slides to the distribution hole, it will fall back into the reaction barrel. The multiple distribution holes on the distribution plate can redistribute the sludge. By rotating the spiral rod, the settled sludge is lifted to a high place again, and then the sludge is redistributed through the distribution plate and the distribution holes, so that the sludge can be fully mixed with the wastewater, thereby achieving the effect of fully activating the wastewater.

[0014] 2. The vacuum pump is started to inflate the inside of the air distributor plate, and the air is injected into the wastewater along the exhaust pipe below the air distributor plate. The first motor is started to drive the air distributor plate to rotate through the engagement of the third gear and the second gear. The rotating air distributor plate can fully inject air into each level of the wastewater, and at the same time stir the wastewater to provide sufficient oxygen for the internal microorganisms, so that they can smoothly process the wastewater. The air generated by the vacuum pump is pumped into each level of the wastewater by rotating the air distributor plate, thereby achieving the effect of fully aerating the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 This is a structural diagram of the reaction barrel of the utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a reaction barrel of the utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the gas distribution plate of the utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the riser of the utility model.

[0020] Legend: 1. Reaction barrel; 2. Lifting tube; 3. Screw rod; 4. First gear; 5. Gas distribution plate; 6. Second gear; 7. First motor; 8. Third gear; 9. Second motor; 11. Fourth gear; 12. Vacuum pump; 13. Support frame; 14. Distribution plate; 15. Distribution holes. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides an activated sludge reactor, which effectively solves the technical problem that the sludge sedimentation speed of the above-mentioned reactor is too fast, and when the wastewater is injected, the precipitated sludge is difficult to fully activate the wastewater. The wastewater is injected along the opening at the side end of the reaction barrel. When in use, the sludge inside the reaction barrel will settle to the bottom of the reaction barrel due to gravity. The second motor is started and the fourth gear is engaged with the first gear, which will drive the spiral rod to rotate. The rotating spiral rod will lift the sludge settled to the bottom of the reaction barrel to the top of the lifting pipe through the lifting pipe. When the sludge reaches the top of the lifting pipe, it will fall above the distribution plate. Since the distribution plate is an inclined surface, the sludge will slide down along the distribution plate. During the sliding process, if the sludge slides to the distribution hole, it will fall back into the reaction barrel. The multiple distribution holes on the distribution plate can It can redistribute the sludge, lift the settled sludge to a higher place by rotating the spiral rod, and redistribute the sludge through the distribution plate and distribution holes so that the sludge can be fully mixed with the wastewater, thereby achieving the effect of fully activating the wastewater. The vacuum pump starts to inflate the inside of the air distribution plate, and injects air into the wastewater along the exhaust pipe below the air distribution plate. The first motor starts and drives the air distribution plate to rotate through the engagement of the third gear and the second gear. The rotating air distribution plate can fully inject air into each level of the wastewater and stir the wastewater at the same time, providing sufficient oxygen for the internal microorganisms so that they can smoothly treat the wastewater. The air generated by the vacuum pump is pumped into each level of the wastewater by rotating the air distribution plate, thereby achieving the effect of fully aerating the wastewater.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application is to effectively solve the technical problem that the sludge precipitation speed of the above-mentioned reactor is too fast, and when the wastewater is injected, the precipitated sludge is difficult to fully activate the wastewater. The overall idea is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides an activated sludge reactor, including a reaction barrel 1, a lifting pipe 2 is fixedly installed inside the reaction barrel 1, a spiral rod 3 is rotatably installed inside the lifting pipe 2, a distribution plate 14 is fixedly installed on the top of the lifting pipe 2, a plurality of distribution holes 15 are opened on the distribution plate 14, and a gas distribution plate 5 is rotatably installed on the top of the reaction barrel 1.

[0025] A vacuum pump 12 is fixedly installed on the top of the gas distribution plate 5, and a second gear 6 is fixedly installed on the top of the gas distribution plate 5; the bottom of the gas distribution plate 5 is a plurality of air inlet pipes of different lengths, a first motor 7 is fixedly installed on the top of the reaction barrel 1, and a second motor 9 is fixedly installed on the top of the reaction barrel 1.

[0026] A third gear 8 is fixedly mounted on the bottom end of the first motor 7, and a fourth gear 11 is fixedly mounted on the bottom end of the second motor 9; the third gear 8 is meshed with the second gear 6, and a first gear 4 is fixedly mounted on the top end of the spiral rod 3; the first gear 4 is meshed with the fourth gear 11, and a support frame 13 is fixedly mounted on the bottom end of the reaction barrel 1.

[0027] Working principle:

[0028] In the first step, wastewater is injected through the opening at the side end of the reaction barrel 1. When in use, the sludge inside the reaction barrel 1 will settle to the bottom of the reaction barrel 1 due to gravity. The second motor 9 is started and the fourth gear 11 is meshed with the first gear 4, which will drive the screw rod 3 to rotate. The rotating screw rod 3 will lift the sludge settled to the bottom of the reaction barrel 1 to the top of the lifting pipe 2 through the lifting pipe 2. When the sludge reaches the top of the lifting pipe 2, it will fall on the distribution plate 14. Since the distribution plate 14 is an inclined surface, the sludge will slide down along the distribution plate 14. During the sliding process, if the sludge slides to the distribution hole 15, it will fall back into the reaction barrel 1. The multiple distribution holes 15 on the distribution plate 14 can redistribute the sludge. By rotating the screw rod 3, the precipitated sludge is lifted to a high place again, and then the sludge is redistributed through the distribution plate 14 and the distribution holes 15, so that the sludge can be fully mixed with the wastewater, thereby achieving the effect of fully activating the wastewater.

[0029] In the second step, the vacuum pump 12 is started to inflate the interior of the gas separation plate 5, and the air is injected into the wastewater along the exhaust pipe below the gas separation plate 5. The first motor 7 is started to drive the gas separation plate 5 to rotate through the engagement of the third gear 8 and the second gear 6. The rotating gas separation plate 5 can fully inject air into each layer of the wastewater and stir the wastewater at the same time to provide sufficient oxygen for the internal microorganisms so that they can smoothly process the wastewater. The air generated by the vacuum pump 12 is pumped into each layer of the wastewater by rotating the gas separation plate 5, thereby achieving the effect of fully aerating the wastewater.

[0030] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An activated sludge reactor, comprising a reaction tank (1), characterized in that: A lifting pipe (2) is fixedly installed inside the reaction barrel (1), a spiral rod (3) is rotatably installed inside the lifting pipe (2), a distribution plate (14) is fixedly installed at the top of the lifting pipe (2), and a plurality of distribution holes (15) are opened on the distribution plate (14).

2. An activated sludge reactor as claimed in claim 1, characterized in that: A gas distribution plate (5) is rotatably mounted on the top of the reaction barrel (1), a vacuum pump (12) is fixedly mounted on the top of the gas distribution plate (5), and a second gear (6) is fixedly mounted on the top of the gas distribution plate (5); The bottom end of the gas distribution plate (5) is provided with a plurality of air inlet pipes of different lengths.

3. An activated sludge reactor as claimed in claim 1, characterized in that: A first motor (7) is fixedly mounted on the top of the reaction barrel (1), and a second motor (9) is fixedly mounted on the top of the reaction barrel (1).

4. An activated sludge reactor as claimed in claim 3, characterized in that: A third gear (8) is fixedly mounted on the bottom end of the first motor (7), and a fourth gear (11) is fixedly mounted on the bottom end of the second motor (9); The third gear (8) is meshed with the second gear (6).

5. An activated sludge reactor as claimed in claim 1, characterized in that: A first gear (4) is fixedly mounted on the top end of the spiral rod (3); The first gear (4) is meshed with the fourth gear (11).

6. An activated sludge reactor as claimed in claim 1, characterized in that: A support frame (13) is fixedly mounted on the bottom end of the reaction barrel (1).

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