CN209778437U

CN209778437U - Air lift uses aeration head among sewage treatment

Info

Publication number: CN209778437U
Application number: CN201920012123.5U
Authority: CN
Inventors: 孔祥荣; 李卫东; 雷达; 刘恒伟; 薛素勤; 冯艳敏; 张辉; 赵迎乐
Original assignee: Zhongyuan Environmental Protection Zhengzhou Equipment Engineering Technology Co Ltd
Current assignee: Zhongyuan Environmental Protection Zhengzhou Equipment Engineering Technology Co Ltd
Priority date: 2019-01-04
Filing date: 2019-01-04
Publication date: 2019-12-13
Anticipated expiration: 2029-01-04

Abstract

The utility model discloses an air lift uses aeration head among sewage treatment, including the casing that adopts cylinder type structure, the up end of casing is seted up jaggedly, from last fixedly connected with impurity baffle and cystosepiment down in proper order in the breach. The utility model discloses start waterproof machine, waterproof machine drives the (mixing) shaft and rather than the quick circumferential direction of fixed connection's shearing piece, big bubble that flows from aeration branch pipe is through shearing sliced shearing back, the bubble diameter diminishes, and the part dissolves, the spiral rising passageway can prolong the residence time of microbubble, further make the sewage that flows from the discharge orifice dissolve, the microbubble that floats to the casing top tears through the cystosepiment once more and is the microbubble, the bubble of being more convenient for is done comprehensively and dissolves in the sewage pond, it is very fast to have solved the rising speed in the sewage pond among the conventional art, the residence time is shorter, lead to dissolved oxygen efficiency lower, will reach the problem that high dissolved oxygen volume just needs more energy consumptions.

Description

Air lift uses aeration head among sewage treatment

Technical Field

The utility model relates to a sewage treatment technical field especially relates to an air lift uses aeration head among sewage treatment.

Background

Sewage treatment: the sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. In one step of sewage treatment, aeration treatment is carried out on sewage by using an air stripping method, so that activated sludge in the sewage can obtain sufficient dissolved oxygen to decompose harmful substances in the sewage. At present, an aeration head is generally used as a direct part for oxygenating sewage, and compressed air is divided into bubbles through an air supply pipeline and the bubbles are dispersed in water through the aeration head, so that the purpose of dissolving oxygen is achieved. The aeration head of the traditional technology has simple structure, the diameter of bubbles is often larger, the rising speed in a sewage tank is faster, the retention time is shorter, the dissolved oxygen efficiency is lower, and more energy consumption is needed to reach high dissolved oxygen.

In order to solve the problems, an aeration head for gas lift in sewage treatment is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background technology and providing an aeration head for gas lift in sewage treatment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

An aeration head for air lift in sewage treatment comprises a shell of a cylindrical structure, wherein a notch is formed in the upper end face of the shell, an impurity baffle and a foam board are fixedly connected in the notch from top to bottom in sequence, a cylinder is fixedly connected to the lower end face of the foam board and the inner bottom face of the shell together, a spiral board is fixedly connected to the outer wall of the cylinder, the outer wall of the spiral board and the inner wall of the shell are in sealing fit, the shell, the cylinder and the spiral board jointly form a spiral ascending channel, a shearing and stirring mechanism is arranged at the inner bottom of the shell, a plurality of water flow ports are uniformly distributed in the circumferential direction of the outer wall of the shell, a check valve through which fluid can only flow into the spiral ascending channel from the outside of the shell is mounted on the inner wall of each water flow port, two aeration branch pipes are connected to the lower end face of the shell through symmetrical airtight threads, and one ends, far away, the end of the aeration main pipe close to the aeration branch pipes is a closed end, and the end of the aeration main pipe far away from the aeration branch pipes is connected with an air compressor.

Preferably, it includes the protection casing of fixed mounting on casing one side lateral wall to cut rabbling mechanism, the inner wall fixed mounting of protection casing has waterproof motor, the drive end fixedly connected with (mixing) shaft of waterproof motor, the one end that waterproof motor was kept away from to the (mixing) shaft runs through the casing and is connected with the inner wall rotation of cylinder, casing, is located the casing the outer wall symmetry fixedly connected with of (mixing) shaft cuts a plurality of slices.

Preferably, one end of the stirring shaft close to the protective cover is rotatably connected with the shell by a waterproof bearing.

Preferably, the power input end of waterproof motor is connected with waterproof anticorrosive wire, waterproof anticorrosive wire keeps away from the one end of waterproof motor and runs through the protection casing and be connected with external power supply, waterproof anticorrosive wire and the sealed fixed connection of protection casing.

Preferably, the impurity baffle is a filter plate provided with fine filter holes.

Preferably, the waterproof motor is a R8668-180KV brushless motor.

compared with the prior art, the aeration head for gas lift in sewage treatment has the advantages that:

1. The waterproof motor is started, the stirring shaft and the shearing sheet fixedly connected with the stirring shaft are driven by the waterproof motor to rotate circumferentially and rapidly, large bubbles flowing out of the aeration branch pipe are sheared by the shearing sheet, the diameters of the bubbles become smaller and are partially dissolved, the residence time of the small bubbles can be prolonged by the spiral ascending channel, the sewage flowing out of the water flowing port is further dissolved, the small bubbles floating to the top of the shell are torn into tiny bubbles through the foam plate again, the bubbles are more conveniently dissolved in the sewage pool comprehensively, and the problems that in the prior art, the ascending speed in the sewage pool is higher, the residence time is shorter, the dissolved oxygen efficiency is lower, and more energy consumption is needed to reach high dissolved oxygen content are solved;

2. The waterproof bearing, the waterproof motor and the protective cover are arranged to perform three-level protection, so that the normal work of the waterproof motor can be ensured.

Drawings

FIG. 1 is a perspective view of an air lift aerator for sewage treatment according to the present invention;

Fig. 2 is a schematic structural diagram of an air-lift aerator for sewage treatment according to the present invention.

In the figure: 1 shell, 2 columns, 3 spiral plates, 4 water flowing ports, 5 one-way valves, 6 waterproof motors, 7 protective covers, 8 stirring shafts, 9 shearing sheets, 10 gaps, 11 foam plates, 12 impurity baffles, 13 aeration branch pipes, 14 aeration main pipes and 15 spiral ascending channels.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, an aeration head for air lift in sewage treatment comprises a shell 1 with a cylindrical structure, wherein the upper end surface of the shell 1 is provided with a gap, an impurity baffle 12 and a foam plate 11 are fixedly connected in the gap from top to bottom in sequence, the impurity baffle 12 is a filter plate with fine filter holes for blocking impurities, the lower end surface of the foam plate 11 and the inner bottom surface of the shell 1 are fixedly connected with a column 2 together, the outer wall of the column 2 is fixedly connected with a spiral plate 3, the outer wall of the spiral plate 3 is in sealing fit with the inner wall of the shell 1, the column 2 and the spiral plate 3 form a spiral ascending channel 15 together, the inner bottom of the shell 1 is provided with a shearing and stirring mechanism, the outer wall of the shell 1 is circumferentially and uniformly provided with a plurality of water flow ports 4, the inner wall of each water flow port 4 is provided with a one-way valve 5 through which fluid can only flow into, the lower end surface of the shell 1 is connected with two aeration branch pipes 13 through symmetrical airtight threads relative to the column body 2, one ends, far away from the shell 1, of the two aeration branch pipes 13 are communicated with an aeration main pipe 14, one end, close to the aeration branch pipes 13, of the aeration main pipe 14 is a closed end, and one end, far away from the aeration branch pipes 13, of the aeration main pipe 14 is connected with an air compressor.

Shearing rabbling mechanism includes protection casing 7 of fixed mounting on casing 1 one side lateral wall, the inner wall fixed mounting of protection casing 7 has waterproof motor 6, waterproof motor 6 adopts R8668-180KV brushless motor, waterproof motor 6's drive end fixedly connected with (mixing) shaft 8, the one end that (mixing) shaft 8 is close to protection casing 7 uses waterproof bearing to rotate with casing 1 and is connected, the one end that waterproof motor 6 was kept away from to (mixing) shaft 8 runs through casing 1 and with cylinder 2, the inner wall of casing 1 rotates and is connected, the outer wall symmetry fixedly connected with of the (mixing) shaft 8 that is located casing 1 cuts a plurality of slices 9.

The waterproof motor 6 is started, the waterproof motor 6 drives the stirring shaft 8 and the shearing sheet 9 fixedly connected with the stirring shaft to rapidly and circumferentially rotate, large bubbles flowing out of the aeration branch pipe 13 are sheared by the shearing sheet 9, the diameters of the bubbles become small and are partially dissolved, the residence time of the small bubbles can be prolonged by the spiral ascending channel 15, sewage flowing out of the water flowing port 4 is further dissolved, the small bubbles floating to the top of the shell 1 are torn into tiny bubbles through the foam plate 11 again, the bubbles are more convenient to be completely dissolved in the sewage pool, and the problems that in the prior art, the ascending speed is high, the residence time is short, the dissolved oxygen efficiency is low and more energy consumption is needed to achieve high dissolved oxygen amount are solved.

the power input end of waterproof motor 6 is connected with waterproof anticorrosive wire, and waterproof motor 6's one end is kept away from to waterproof anticorrosive wire runs through protection casing 7 and is connected with external power supply, and waterproof anticorrosive wire and 7 sealed fixed connections of protection casing set up waterproof bearing, waterproof motor 6 and protection casing 7 and do tertiary protection, can guarantee the normal work of waterproof motor, and what be worth explaining: the waterproof and anticorrosive performances of the wire with waterproof and anticorrosive functions, the waterproof motor 6 and the protective cover 7 are the prior art, and are applied in various fields, which are not described herein.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

The utility model discloses in, sewage flows into casing 1 through check valve 5 on the discharge orifice 4 in, the air compressor machine loops through aeration house steward 14 and the interior bottom of aeration branch pipe 13 input casing 1 with compressed air, waterproof motor 6 drive (mixing) shaft 8 and rather than fixed connection's shear blade 9 rotates fast, can carry out the one-level to shearing from aeration branch pipe 13 bubble on the one hand, shear big bubble into the microbubble, on the other hand can stir gas and sewage, improve sewage dissolved oxygen volume, the microbubble of shearing formation is automatic to be slowly floated through spiral rising passageway 15, spiral rising passageway 15 has prolonged gas greatly and has floated journey and detention time at casing 1, further improve dissolved oxygen volume, the microbubble that rises to casing 1 top is cut apart into the microbubble through the foam slab once more and is got into the effluent water sump through impurity baffle 12, sewage loops through discharge orifice 4, The spiral ascending channel 15 and the gap flow into the sewage pool again to complete the circulation.

In addition, the waterproof bearing prevents that the inside fluid of casing 1 from getting into in the protection casing 7 and carrying out the primary protection, and waterproof motor 6 has waterproof attribute from being the secondary protection, and its waterproof anti-impurity of protection casing 7 avoids water and impurity to cause the influence to waterproof motor 6 to be tertiary protection in addition, can guarantee the normal work of waterproof motor 6 through one-level, second grade, tertiary protection.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an air lift uses aeration head among sewage treatment, is including casing (1) that adopts cylinder type structure, a serial communication port, the breach is seted up to the up end of casing (1), from last fixedly connected with impurity baffle (12) and cystosepiment (11) down in proper order in the breach, the lower terminal surface of cystosepiment (11) and the common fixedly connected with cylinder (2) of interior bottom surface of casing (1), the outer wall fixedly connected with spiral plate (3) of cylinder (2), the outer wall of spiral plate (3) and the sealed laminating setting of inner wall of casing (1), cylinder (2) and spiral plate (3) constitute spiral ascending passageway (15) jointly, the interior bottom of casing (1) is equipped with cuts stirring mechanism, the outer wall circumference equipartition of casing (1) has a plurality of running water mouth (4), every it can only follow the outside inflow spiral ascending passageway (15) of casing (1) to all install the fluid on the inner wall of running water mouth (4) ) The lower end face of the shell (1) is connected with two aeration branch pipes (13) through symmetrical airtight threads relative to the cylinder (2), one ends, far away from the shell (1), of the two aeration branch pipes (13) are communicated with an aeration main pipe (14) together, one end, close to the aeration branch pipes (13), of the aeration main pipe (14) is a closed end, and one end, far away from the aeration branch pipes (13), of the aeration main pipe (14) is connected with an air compressor.

2. The air lift aeration head in sewage treatment according to claim 1, wherein the shearing and stirring mechanism comprises a protective cover (7) fixedly installed on one side wall of the housing (1), a waterproof motor (6) is fixedly installed on the inner wall of the protective cover (7), a stirring shaft (8) is fixedly connected to the driving end of the waterproof motor (6), one end, far away from the waterproof motor (6), of the stirring shaft (8) penetrates through the housing (1) and is rotatably connected with the inner walls of the cylinder (2) and the housing (1), and a plurality of shearing sheets (9) are symmetrically and fixedly connected to the outer wall of the stirring shaft (8) in the housing (1).

3. The air lift aeration head of claim 2, wherein the end of the stirring shaft (8) near the shield (7) is rotatably connected to the housing (1) using a waterproof bearing.

4. The air lift aeration head in sewage treatment as claimed in claim 2, wherein a waterproof and anticorrosion lead is connected to the power input end of the waterproof motor (6), one end of the waterproof and anticorrosion lead, which is far away from the waterproof motor (6), penetrates through the protective cover (7) and is connected with an external power supply, and the waterproof and anticorrosion lead is fixedly connected with the protective cover (7) in a sealing manner.

5. the air lift aerator as claimed in claim 1, wherein the impurity baffles (12) are filter plates provided with fine filter holes.

6. The air lift aeration head of claim 2, wherein the waterproof motor (6) is a R8668-180KV brushless motor.