Integral lifting aeration system for sewage biochemical pool

Abstract

The utility model discloses an integral lifting aeration system for a sewage biochemical pool, which comprises a biochemical treatment pool, an aeration structure is arranged in the biochemical treatment pool, the aeration structure comprises aeration pipes and a fixed beam, the fixed beam is longitudinally arranged in the biochemical treatment pool, and a plurality of transverse horizontal aeration pipes are arranged on the side surface of the fixed beam at intervals. A lifting mechanism for driving the fixed beam to lift is arranged on one side of the biochemical treatment tank; one end of each aeration pipe is connected with one end of the air hose, the other end of the air hose is connected with an exhaust port of the air pump, a plurality of aeration connectors are arranged on each aeration pipe at intervals, and each aeration connector is connected with the aeration disc; the lifting mechanism comprises a lifting shaft, a linear bearing, a mounting plate, a lug, a fixed pulley, a supporting rod, a winch and a steel wire rope. The mounting plate is arranged at the top of the biochemical treatment pond and provided with a supporting rod, a lifting shaft is arranged on one side of the supporting rod, a winch is arranged on the other side of the supporting rod, and the lifting shaft penetrates through a guide hole formed in the mounting plate. The aeration device is high in aeration efficiency and convenient to maintain and repair.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical pool sewage treatment, in particular to an overall lifting aeration system for a sewage biochemical pool. Background Art

[0002] The sewage biochemical tank is a biochemical reactor designed according to the characteristics of microorganisms, which uses the activated sludge method to treat sewage. Its working principle is: through aeration, necessary oxygen is provided to the activated sludge microorganisms, aerobic conditions are maintained, and the normal growth and reproduction of microorganisms are promoted. At the same time, good conditions are provided for the organic pollutants in the wastewater to be adsorbed, oxidized and decomposed by the activated sludge, so that the organic pollutants are degraded.

[0003] Aeration refers to the process of forcibly transferring oxygen from the air to the liquid in order to obtain sufficient dissolved oxygen. The aeration tank is mainly composed of three parts: the tank body, the aeration system, and the water inlet and outlet. The tank provides a certain sewage retention time to meet the oxygen required by aerobic microorganisms and the mixing conditions for the sewage and activated sludge to fully contact. Through aeration, the organic matter in the sewage can be completely oxidized into inorganic matter, and finally separated into activated sludge, so that the treated water meets the standards.

[0004] At present, the aeration system used fixes the aeration pipe at the bottom of the sewage biochemical pool. When the aeration pipe and the aeration head are damaged and need to be repaired, production must be stopped and the sewage in the biochemical pool must be drained, which is inconvenient to operate. In addition, the sewage in the existing aeration system has a small flow range during aeration. Due to the uneven activity range of microorganisms in the sewage pool, most of the oxygen is not fully utilized during the aeration process, resulting in a waste of resources and low aeration efficiency. Utility Model Content

[0005] The utility model provides an overall lifting aeration system for a sewage biochemical pool, which solves the problems of inconvenient maintenance and repair and low aeration efficiency of traditional sewage aeration systems.

[0006] The utility model provides an overall lifting aeration system for a sewage biochemical pool, comprising a biochemical treatment pool, an aeration structure arranged in the biochemical treatment pool, the aeration structure comprising an aeration pipe and a fixed beam, the fixed beam being arranged horizontally in the biochemical treatment pool, a plurality of horizontal aeration pipes being arranged at intervals on the side of the fixed beam, and a lifting mechanism for driving the fixed beam to be lifted and lowered being arranged on one side of the biochemical treatment pool; one end of the aeration pipe is connected to one end of a gas delivery hose, the other end of the gas delivery hose is connected to an exhaust port of an air pump, a plurality of aeration interfaces are arranged at intervals on each aeration pipe, and each aeration interface is connected to an aeration disk; the lifting mechanism comprises Lifting shaft, linear bearing, mounting plate, ear seat, fixed pulley, support rod, winch, wire rope; the mounting plate is horizontally arranged on the top of the biochemical treatment pool, the support rod is arranged on the mounting plate, the lifting shaft is arranged on one side of the support rod, and the winch is arranged on the other side, the lifting shaft is vertically penetrated into the guide hole arranged on the mounting plate, the linear bearing is slidingly sleeved on the outer wall of the lifting shaft, the linear bearing is fixedly connected to the mounting plate, the upper end of the lifting shaft is arranged with an ear seat, the upper end of the support rod is arranged with a fixed pulley, one end of the wire rope is fixedly connected to the ear seat, and the other end is connected to the winch, and the middle part of the wire rope is supported and guided by the fixed pulley.

[0007] In the above technical solution, further, a submersible aerator is vertically arranged at the middle position of the bottom of the biochemical treatment tank, the submersible aerator is fixedly connected to the aeration pipe, and the air inlet of the submersible aerator is connected to the aeration pipe through a gas hose.

[0008] In the above technical scheme, further, a transfer pool is arranged outside the biochemical treatment pool, a plurality of water inlets are arranged on the upper side wall of the biochemical treatment pool, a plurality of drainage outlets are arranged around the lower side wall of the biochemical treatment pool, a plurality of submersible pumps are arranged at the bottom of the transfer pool, and the water outlet of each submersible pump is connected to the corresponding drainage outlet through a water pipe.

[0009] In the above technical solution, further, a filter screen is provided at the drain outlet.

[0010] In the above technical solution, further, a solenoid valve is arranged on the gas hose.

[0011] In the above technical solution, further, the linear bearing is a flange linear bearing, and the flange of the linear bearing is fixedly connected to the mounting plate by screws.

[0012] It can be seen from the above technical solutions that the utility model provides an overall aeration system for a sewage biochemical pool.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. High-pressure gas is generated by an air pump and sent into the aeration pipe, and is evenly released from the bottom of the biochemical treatment tank through the aeration plate. The oxygen in the air is fully in contact with the activated sludge microorganisms in the sewage, promoting the normal growth and reproduction of the microorganisms, and the aeration efficiency is high.

[0015] 2. The lifting shaft is pulled up by the winch to guide the lifting wire rope through the linear bearing. The lifting shaft drives the aeration pipe to rise above the water surface through the fixed beam. There is no need to empty the biochemical treatment pool, which is convenient for maintenance and repair of the aeration plate.

[0016] 3. Use a submersible aerator to spray air around the bottom of the biochemical treatment tank to quickly oxygenate the liquid at the bottom of the biochemical treatment tank.

[0017] 4. The liquid in the biochemical treatment pool is circulated through a submersible pump, which realizes the mixed aeration of the sewage in the biochemical treatment pool, improves the aeration efficiency and saves the aeration time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic cross-sectional view of the overall structure of a sewage biochemical pool overall lifting aeration system proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the aeration structure of an overall aeration system for a sewage biochemical pool proposed by the utility model.

[0021] In the figure:

[0022] 1-biochemical treatment pool; 11-water inlet; 12-drain outlet; 121-filter screen;

[0023] 2- aeration structure; 20- air delivery hose; 21- aeration pipe; 22- fixed beam; 23- air pump; 24- aeration plate;

[0024] 3-lifting mechanism; 31-lifting shaft; 32-linear bearing; 33-mounting plate; 34-ear seat; 35-fixed pulley; 36-support rod; 37-winch; 38-wire rope;

[0025] 4-submersible aerator; 41-gas hose;

[0026] 5-Transfer pool;

[0027] 6-Submersible pump;

[0028] 7-Solenoid valve. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0030] Embodiment 1:

[0031] See also Figure 1-2 A sewage biochemical pool integral lifting aeration system comprises a biochemical treatment pool 1, an aeration structure 2 is arranged in the biochemical treatment pool 1, the aeration structure 2 comprises an aeration pipe 21 and a fixed beam 22, the fixed beam 22 is horizontally arranged in the biochemical treatment pool 1, a plurality of horizontal aeration pipes 21 are arranged at intervals on the side of the fixed beam 22, and a lifting mechanism 3 for driving the fixed beam 22 to rise and fall is arranged on one side of the biochemical treatment pool 1; one end of the aeration pipe 21 is connected to one end of a gas hose 20, and the other end of the gas hose 20 is connected to an air pump 23 is connected to the exhaust port, and each aeration pipe 21 is provided with a plurality of aeration interfaces at intervals, and each aeration interface is connected to the aeration plate 24; the lifting mechanism 3 includes a lifting shaft 31, a linear bearing 32, a mounting plate 33, an ear seat 34, a fixed pulley 35, a support rod 36, a winch 37, and a wire rope 38; the mounting plate 33 is horizontally arranged on the top of the biochemical treatment tank 1, a support rod 36 is arranged on the mounting plate 33, a lifting shaft 31 is arranged on one side of the support rod 36, and a winch 37 is arranged on the other side, and the lifting shaft 31 is vertically arranged. A linear bearing 32 is slidably sleeved on the outer wall of the lifting shaft 31 into the guide hole set on the mounting plate 33, and the linear bearing 32 is fixedly connected to the mounting plate 33. An ear seat 34 is set at the upper end of the lifting shaft 31, and a fixed pulley 35 is set at the upper end of the support rod 36. One end of the wire rope 38 is fixedly connected to the ear seat 34, and the other end is connected to the winch 37. The middle part of the wire rope 38 is supported and guided by the fixed pulley 35, and the high-pressure gas is generated by the air pump 23, and the high-pressure gas is sent into the aeration pipe 2 through the gas hose 20. 1, released from the bottom of the biochemical treatment tank 1 through the aeration plate 24, the oxygen in the air and the activated sludge microorganisms in the sewage provide necessary oxygen, maintain aerobic conditions, promote the normal growth and reproduction of microorganisms, and have high aeration efficiency. The wire rope 38 is wound by the winch 37, and the wire rope 38 pulls the lifting shaft 31 to the ascending position through the linear bearing 32. The lifting shaft 31 drives the aeration pipe 21 to rise above the water surface through the fixed beam 22, so that the aeration plate 24 can be easily maintained.

[0032] In this embodiment, see Figure 1 A submersible aerator 4 is vertically arranged at the middle position of the bottom of the biochemical treatment tank 1. The submersible aerator 4 is fixedly connected to the aeration pipe 21. The air inlet of the submersible aerator 4 is connected to the aeration pipe 21 through a gas hose 41. Gas is supplied to the submersible aerator 4 through the gas hose 41. The gas is sprayed out to the surroundings through the submersible aerator 4, so as to quickly oxygenate the liquid at the bottom of the biochemical treatment tank 1.

[0033] In this embodiment, see Figure 1 A transfer tank 5 is arranged around the biochemical treatment tank 1, a plurality of water inlets 11 are arranged on the upper side wall of the biochemical treatment tank 1, a plurality of drainage outlets 12 are arranged around the lower side wall of the biochemical treatment tank 1, a plurality of submersible pumps 6 are arranged at the bottom of the transfer tank 5, and the water outlet of each submersible pump 6 is connected to the corresponding drainage outlet 12 through a water pipe. The sewage of the biochemical treatment tank 1 enters the transfer tank 5 from all sides through the plurality of water inlets 11, and the sewage entering the transfer tank 5 is circulated and discharged into the biochemical treatment tank 1 from the drainage outlet 12 through the submersible pump 6, so that the sewage in the biochemical treatment tank 1 is evenly mixed in the upper and lower circulation, which is convenient for improving the aeration efficiency.

[0034] In this embodiment, see Figure 1 A filter screen 121 is provided at the drain outlet 12 to prevent larger impurity particles from entering the transfer tank 5 .

[0035] In this embodiment, see Figure 1 A solenoid valve 7 is provided on the gas hose 41 , and the solenoid valve 7 is used to control the on-off of the gas in the gas hose 41 , so as to achieve intermittent aeration treatment of the sewage in the biochemical treatment pool 1 .

[0036] The linear bearing 32 is a flange linear bearing, a screw hole is set on the flange of the linear bearing 32, and a threaded hole is processed on the mounting plate 33. The flange of the linear bearing 32 and the mounting plate 33 are connected and fixed by screws to guide the lifting shaft 31.

[0037] The aeration plate 24 is an existing commercially available device. The aeration plate 24 is mainly made of microporous materials such as ceramics, titanium powder, aluminum oxide, silicon oxide and nylon. The diameter of the bubbles generated is less than 2 mm, and the oxygen utilization rate is high.

[0038] In this embodiment, the submersible aerator 4 is an existing commercially available equipment. Its principle is to form a negative pressure zone around the impeller under the action of centrifugal force, and air is sucked in through the air inlet. The air and water are torn apart by the high-speed rotating impeller in the mixing chamber, and the gas and liquid are turbulently mixed and come out through the diffusion channel at high speed to form bubbles, and the oxygen in the air is dissolved in the water. Due to the strong jet of water flow and the star-shaped impeller cutting the air bubbles finer, smaller and denser, the contact surface between the air bubbles and the liquid to be treated is larger, and the air is sheared into a large number of tiny bubbles, which greatly increases the mass transfer area and forms a spiral effective water cycle. A large amount of oxygen is dissolved in the water, which improves the oxygen utilization rate.

[0039] It can be seen from the above technical scheme that when in use, the air pump 23 is controlled by the controller to generate high-pressure gas, and the high-pressure gas is sent into the aeration pipe 21 through the gas delivery hose 20, and is released from the bottom of the biochemical treatment tank 1 through the aeration plate 24. The oxygen in the air is fully in contact with the activated sludge microorganisms in the sewage, which promotes the normal growth and reproduction of the microorganisms. The aeration efficiency is high, and the wire rope 38 is wound by the winch 37. The wire rope 38 pulls the lifting shaft 31 and guides it to the rising position through the linear bearing 32. The lifting shaft 31 drives the aeration pipe 21 to rise above the water surface through the fixed beam 22, which is convenient for the maintenance and repair of the aeration plate 24. The air inlet of the submersible aerator 4 is connected to the aeration pipe 21 through the gas hose 41, and the gas is supplied to the submersible aerator 4 through the gas hose 41. The gas is ejected to the surroundings through the submersible aerator 4, which is convenient for quickly oxygenating the liquid at the bottom of the biochemical treatment tank 1.

[0040] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. The present invention is intended to cover any variation, use or adaptation of the present invention, which follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope of the present invention is indicated by the claims.

[0041] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention.

Claims

1. A sewage biochemical pool overall lifting aeration system, characterized by: The invention comprises a biochemical treatment pool (1), wherein an aeration structure (2) is arranged in the biochemical treatment pool (1), wherein the aeration structure (2) comprises an aeration pipe (21) and a fixed beam (22), wherein the fixed beam (22) is arranged horizontally in the biochemical treatment pool (1), and a plurality of horizontal aeration pipes (21) are arranged at intervals on the side of the fixed beam (22), and a lifting mechanism (3) for driving the fixed beam (22) to rise and fall is arranged on one side of the biochemical treatment pool (1); one end of the aeration pipe (21) is connected to one end of a gas delivery hose (20), and the other end of the gas delivery hose (20) is connected to the exhaust port of an air pump (23), and a plurality of aeration interfaces are arranged at intervals on each aeration pipe (21), and each aeration interface is connected to an aeration disk (24); the lifting mechanism (3) comprises a lifting shaft (31), a linear bearing (32), a mounting plate (33), an ear seat (34), a fixed pulley (35), a support rod (36), winch (37), and wire rope (38); the mounting plate (33) is horizontally arranged on the top of the biochemical treatment pool (1); a support rod (36) is arranged on the mounting plate (33); a lifting shaft (31) is arranged on one side of the support rod (36), and a winch (37) is arranged on the other side; the lifting shaft (31) is vertically inserted into a guide hole arranged on the mounting plate (33); a linear bearing (32) is slidably sleeved on the outer wall of the lifting shaft (31); the linear bearing (32) is fixedly connected to the mounting plate (33); an ear seat (34) is arranged at the upper end of the lifting shaft (31); a fixed pulley (35) is arranged at the upper end of the support rod (36); one end of the wire rope (38) is fixedly connected to the ear seat (34), and the other end is connected to the winch (37); the middle part of the wire rope (38) is supported and guided by the fixed pulley (35).

2. The sewage biochemical pool integral lifting aeration system according to claim 1, characterized in that: A submersible aerator (4) is arranged at the bottom of the biochemical treatment pool (1); the submersible aerator (4) is fixedly connected to the aeration pipe (21); and the air inlet of the submersible aerator (4) is connected to the aeration pipe (21) via a gas hose (41).

3. The sewage biochemical pool integral lifting aeration system according to claim 1, characterized in that: A transfer pool (5) is arranged outside the biochemical treatment pool (1), a plurality of water inlets (11) are arranged around the upper side wall of the biochemical treatment pool (1), a plurality of drainage outlets (12) are arranged around the lower side wall of the biochemical treatment pool (1), a plurality of submersible pumps (6) are arranged at the bottom of the transfer pool (5), and the water outlet of each submersible pump (6) is connected to the corresponding drainage outlet (12) through a water pipe.

4. The sewage biochemical pool integral lifting aeration system according to claim 3, characterized in that: The drain outlet (12) is provided with a filter screen (121).

5. The sewage biochemical pool integral lifting aeration system according to claim 2, characterized in that: The gas hose (41) is provided with a solenoid valve (7).

6. The sewage biochemical pool integral lifting aeration system according to claim 1, characterized in that: The linear bearing (32) is a flange linear bearing, and the flange of the linear bearing (32) is fixedly connected to the mounting plate (33) by means of screws.

Images