Energy-saving AAO (anaerobic-anoxic-oxic) biochemical pool of plug-flow stirrer in intermittent operation

Abstract

The utility model discloses an energy-saving AAO (anaerobic-anoxic-oxic) biochemical pool of a plug-flow type stirrer in intermittent operation, which comprises an anaerobic pool, an anoxic pool and an aerobic pool which are connected in sequence, and the plug-flow type stirrer is arranged in the anoxic pool and the aerobic pool; an aeration device is arranged in the aerobic tank; and the reciprocating motion of the plug-flow stirrer is controlled by a reciprocating control assembly. According to the utility model, the plug-flow stirrer is arranged in the biochemical pool and is controlled to reciprocate through the reciprocating control assembly, so that a plurality of stirrers are not required to be arranged, the cost is reduced, the mixing of water and microorganisms is promoted, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an energy-saving AAO biochemical pool of a plug-flow mixer in intermittent operation. Background Art

[0002] As an important sewage treatment facility, the biochemical pool plays a vital role in the urban sewage treatment system. However, with the continuous acceleration of urbanization, the pressure on sewage treatment plants is also increasing. In order to better cope with the huge sewage treatment pressure and improve sewage treatment efficiency, it is necessary to transform the existing AAO biochemical pool. The existing AAO biochemical pool is equipped with multiple sets of mixers, which increases costs and is relatively wasteful. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an energy-saving AAO biochemical pool with a push-flow mixer in intermittent operation, reduce equipment costs, and improve sewage treatment efficiency.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: an energy-saving AAO biochemical pool with a plug-flow mixer in intermittent operation, comprising an anaerobic pool, an anoxic pool and an aerobic pool connected in sequence, wherein the anoxic pool and the aerobic pool are provided with a plug-flow mixer; the aerobic pool is provided with an aeration device; the plug-flow mixer is controlled to reciprocate by a reciprocating control component.

[0005] Furthermore, the push-flow mixer includes a stirring hood, stirring blades, a stirring shaft and a support arm; the stirring hood is installed on the support arm, and the stirring shaft is arranged in the center of the stirring hood; the stirring shaft is rotatably connected to the shaft sleeve in the center of the stirring hood; a plurality of stirring blades are arranged on the stirring shaft; and the stirring shaft is connected to the stirring motor through a coupling.

[0006] Furthermore, the reciprocating control component includes a screw arranged in the anoxic pool or the aerobic pool; bearing seats are arranged at both ends of the anoxic pool or the aerobic pool, and both ends of the screw are rotatably connected to the bearing seats; one end of the screw is connected to the drive motor through a coupling and is driven by the drive motor, the screw is connected to the moving seat, and the moving seat is fixedly connected to the support arm of the plug-flow mixer, and a positioning rod is arranged below the screw in the anoxic pool or the aerobic pool; a positioning groove is arranged in the positioning rod, and the support arm passes through the positioning rod and reciprocates along the positioning groove.

[0007] Furthermore, bearing seats are provided at the upper and lower parts of the support arm; the two ends of the lead screw 2 are rotatably connected to the bearing seats, and the top of the lead screw 2 is connected to the drive motor 2 through a coupling; the lead screw 2 is screwed to the lifting seat; the two sides of the lifting seat are slidably connected to the support arm; and a stirring cover is installed on the lifting seat.

[0008] Furthermore, the top of the support arm is installed on the moving seat through a rotating cylinder.

[0009] Furthermore, the aeration device is a microporous aerator.

[0010] The beneficial effects of the utility model are:

[0011] 1) The utility model installs a plug-flow mixer in the biochemical pool, and controls its reciprocating movement through a reciprocating control component, without installing multiple mixers, thereby reducing costs.

[0012] 2) The push-flow mixer of the utility model can not only move horizontally back and forth, but also move vertically up and down through the reciprocating control component, and can also adjust the angle of the stirring shaft to promote the mixing of water and microorganisms and improve the sewage treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of Example 2 of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of Example 2 of the utility model. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be clearly and completely described below through specific implementation methods. Example

[0018] refer to Figure 1 and Figure 2 , is an energy-saving AAO biochemical pool of a plug-flow mixer in intermittent operation of the utility model, comprising an anaerobic pool 1, an anoxic pool 2 and an aerobic pool 3 connected in sequence.

[0019] In this embodiment, a plug flow mixer 4 is provided in the anoxic pool 2 and the aerobic pool 3; an aeration device is provided in the aerobic pool 3; the plug flow mixer 4 is controlled to reciprocate by a reciprocating control component. The aeration device in this embodiment is a microporous aerator.

[0020] The push-flow mixer 4 of this embodiment includes a stirring cover 41, stirring blades 42, a stirring shaft 43 and a support arm 44; the stirring cover 41 is installed on the support arm 44, and a stirring shaft 43 is arranged at the center of the stirring cover 41; the stirring shaft is rotatably connected to the shaft sleeve at the center of the stirring cover 41; a plurality of stirring blades 42 are arranged on the stirring shaft 43; the stirring shaft is connected to the stirring motor through a coupling.

[0021] The reciprocating control assembly of this embodiment includes a lead screw 51 arranged in the anoxic pool 2 or the aerobic pool 3; bearing seats are arranged at both ends of the anoxic pool 2 or the aerobic pool 3, and both ends of the lead screw 51 are rotatably connected to the bearing seats; one end of the lead screw 51 is connected to the driving motor through a coupling and is driven by the driving motor, the lead screw 51 is connected to the moving seat 52, and the moving seat 52 is fixedly connected to the support arm 44 of the plug-flow mixer 4, and a positioning rod 53 is arranged below the lead screw 51 in the anoxic pool 2 or the aerobic pool 3; a positioning groove 54 is arranged in the positioning rod 53, and the support arm 44 passes through the positioning rod 53 and reciprocates along the positioning groove.

[0022] The driving motor of this embodiment drives the screw 51 to rotate. The screw 51 is arranged along the longitudinal direction of the anoxic tank 2 or the aerobic tank 3. When the screw rotates, the moving seat drives the support arm to move along the longitudinal direction of the anoxic tank 2 or the aerobic tank 3, so that the dynamic push flow mixer 4 moves in the length direction of the anoxic tank 2 or the aerobic tank 3, promotes uniform mixing of water and microorganisms, promotes the contact between oxygen and organic waste, so as to improve the biodegradation efficiency. Moving the dynamic push flow mixer 4 in the length direction of the anoxic tank 2 or the aerobic tank 3 can reduce the number of mixers in the anoxic tank 2 or the aerobic tank 3, reduce equipment costs, and make the water and microorganisms mix more evenly. Example

[0023] The upper and lower parts of the support arm 44 of this embodiment are provided with bearing seats; the two ends of the lead screw 61 are rotatably connected to the bearing seats, and the top of the lead screw 61 is connected to the driving motor 2 through a coupling; the lead screw 61 is screwed to the lifting seat 62; the two sides of the lifting seat 62 are slidably connected to the support arm 44; the stirring cover 41 is installed on the lifting seat 62.

[0024] In this embodiment, a lifting seat is arranged on the support arm, and the second screw controls the lifting of the lifting seat, thereby further promoting the mixing of water and microorganisms and improving the sewage treatment efficiency. Example

[0025] On the basis of Example 1, the top of the support arm 44 is installed on the moving seat 52 through a rotating cylinder 63.

[0026] In this embodiment, the support arm is controlled to rotate by rotating the cylinder 63 , thereby driving the angle of the stirring shaft 43 to change, which is more conducive to stirring and mixing the corners of the anoxic pool 2 and the aerobic pool 3 .

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. An energy-saving AAO biochemical pool with a plug-flow mixer in intermittent operation, comprising an anaerobic pool (1), an anoxic pool (2) and an aerobic pool (3) connected in sequence, characterized in that: The anoxic pool (2) and the aerobic pool (3) are provided with a plug-flow mixer (4); the aerobic pool (3) is provided with an aeration device; the plug-flow mixer (4) is controlled to reciprocate via a reciprocating control component.

2. The energy-saving AAO biochemical pool of the plug-flow mixer in intermittent operation according to claim 1 is characterized in that: The push-flow mixer (4) comprises a stirring hood (41), stirring blades (42), a stirring shaft (43) and a support arm (44); the stirring hood (41) is mounted on the support arm (44), and the stirring shaft (43) is arranged at the center of the stirring hood (41); the stirring shaft is rotatably connected to a shaft sleeve at the center of the stirring hood (41); a plurality of stirring blades (42) are arranged on the stirring shaft (43); and the stirring shaft is connected to a stirring motor via a coupling.

3. The energy-saving AAO biochemical pool of the plug-flow mixer in intermittent operation according to claim 1 is characterized in that: The reciprocating control component comprises a lead screw (51) arranged in the anoxic pool (2) or the aerobic pool (3); bearing seats are arranged at both ends of the anoxic pool (2) or the aerobic pool (3), and both ends of the lead screw (51) are rotatably connected to the bearing seats; one end of the lead screw (51) is connected to a driving motor via a coupling and is driven by the driving motor; the lead screw (51) is connected to a moving seat (52), and the moving seat (52) is fixedly connected to a support arm (44) of a plug-flow mixer (4); a positioning rod (53) is arranged below the lead screw (51) in the anoxic pool (2) or the aerobic pool (3); a positioning groove (54) is arranged in the positioning rod (53), and the support arm (44) passes through the positioning rod (53) and reciprocates along the positioning groove.

4. The energy-saving AAO biochemical pool of the plug-flow mixer in intermittent operation according to claim 3 is characterized by: The upper and lower parts of the support arm (44) are provided with bearing seats; the two ends of the second lead screw (61) are rotatably connected to the bearing seats, and the top of the second lead screw (61) is connected to the second drive motor via a coupling; the second lead screw (61) is screwed to the lifting seat (62); the two sides of the lifting seat (62) are slidably connected to the support arm (44); and the stirring cover (41) is installed on the lifting seat (62).

5. The energy-saving AAO biochemical pool of the plug-flow mixer in intermittent operation according to claim 3 is characterized by: The top of the support arm (44) is mounted on the movable seat (52) via a rotating cylinder (63).

6. The energy-saving AAO biochemical pool of the plug-flow mixer in intermittent operation according to claim 1 is characterized in that: The aeration device is a microporous aerator.

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