Aerator for sewage treatment

Abstract

The utility model relates to the technical field of aerators, and discloses an aerator for sewage treatment, which comprises a cylinder body, two pore plate filter elements are arranged in the cylinder body and are symmetrically distributed, a cross-shaped fixing plate is welded in the cylinder body, a placing groove is arranged on the upper surface of the cylinder body, a top pore plate is arranged in the placing groove, and a bottom pore plate is arranged in the top pore plate. A threaded hole is formed in the upper surface of the cross-shaped fixing plate, a threaded rod is in threaded connection with the interior of the threaded hole, and one end of the threaded rod sequentially penetrates through the pore plate filter element and the top pore plate and extends upwards. According to the utility model, the pore plate filter element and the top pore plate are matched for use to replace wing-shaped blades and conical blades in the prior art, so that the phenomenon that solid impurities collide with the wing-shaped blades and the conical blades in the gas-liquid rising process, the wing-shaped blades and the conical blades are damaged, and the effect of producing ultra-micro bubbles is lost is avoided, and the service life of the ultra-micro bubbles is prolonged. And a good practical effect is achieved.

Description

TECHNICAL FIELD

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

[0002] Aerator is the necessary equipment of water supply and drainage aeration, can be divided into surface aerator and underwater aerator according to use method, underwater aerator mainly has micro-porous aerator and jet aerator.

[0003] The utility model discloses a kind of hydraulic shearing aerators for sewage treatment, mainly by cylinder, wing blade and cone blade composition.The technical scheme can realize the full mixing of gas and water and multilayer cutting, improve oxygen utilization, the mechanical cutting structure designed in the utility model, after fluid mechanics simulation optimization, resistance loss is far less than micro-bubble aerator.

[0004] The above-mentioned file discloses the following defects of the hydraulic shearing aerator for sewage treatment: sewage has not been fully pretreated before entering treatment facility, such as not removing larger solid impurities by grating or screen, then these impurities can enter sewage pool, and then enter the inside of cylinder, when aerator is carried out aeration treatment to sewage pool, gas enters from the flange at the bottom of cylinder, gas passes through steel pipe, and is sprayed from nozzle, due to the action of gas, mixed liquid circulates in cylinder, gas and liquid are collided and cut by wing blade and cone blade inside cylinder multiple times in the process, solid impurities can collide with wing blade and cone blade, and then can cause damage to wing blade and cone blade, and then lose the effect of manufacturing ultramicro bubble.

[0005] Therefore, the existing aerator for sewage treatment does not have better bubble-making structure, and needs to be improved, to provide an aerator for sewage treatment. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an aerator for sewage treatment to solve the problems in the above background.

[0007] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses an aerator for sewage treatment, including the cylinder, the peripheral surface of cylinder is equipped with the mounting hole, the inside of mounting hole is equipped with the pipe body, one end of pipe body is equipped with the connecting flange, the inside of cylinder is provided with the orifice plate filter core, the orifice plate filter core is equipped with two and symmetrical distribution, the inside welding of cylinder has the cross fixed plate, the upper surface of cylinder is provided with the placing groove, the inside installation of placing groove has the top orifice plate, the upper surface of cross fixed plate is equipped with the threaded hole, the inside screw thread connection of threaded hole has the screw rod, one end of screw rod is in turn and goes through orifice plate filter core and top orifice plate and sets up and extends upwards.

[0009] Further, the outer surface of the screw rod is threadedly connected with a lock nut.

[0010] Further, the outer surface of the screw rod is provided with a gasket, the lower surface of the gasket abuts against the upper surface of the top orifice plate, and the upper surface of the gasket abuts against the lower surface of the lock nut.

[0011] Further, the end of the pipe body away from the connecting flange is provided with an elbow.

[0012] Further, the peripheral surface of the pipe body is provided with a plurality of foot supports, one end of the foot support is welded to the outer surface of the cylinder.

[0013] Further, the orifice plate filter core is a conical shell structure, and one end of the orifice plate filter core is provided with a connecting piece.

[0014] Further, the cylinder, the pipe body and the connecting flange are all made of stainless steel.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model discloses a kind of aerators for sewage treatment, by starting external air pump, so that the gas in air pump is in turn through connecting flange and pipe body, then is sprayed by elbow, due to gas effect, mixed liquid circulates in cylinder, and is cut by two groups of orifice plate filter cores in cylinder during gas-liquid ascending process, form a large number of bubbles, then a large number of bubbles are further cut by top orifice plate, form a large number of micro-bubbles, and fully mix with surrounding sludge mixture, by the cooperation of orifice plate filter core and top orifice plate, replace the wing type blade and conical blade in prior art, avoid solid impurities and wing type blade and conical blade from colliding during gas-liquid ascending process, further cause the damage of wing type blade and conical blade, further lose the effect of manufacturing ultramicro bubble, play good practical effect.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 It is the whole structure schematic view of the present application;

[0020] Figure 2 It is the whole structure sectional view of the present application;

[0021] Figure 3 It is the local structure sectional view of the present application;

[0022] Figure 4 It is the local structure exploded view of the present application;

[0023] Figure 5 It is the hole plate filter core structure schematic view of the present application;

[0024] In the drawings, the component list represented by each mark is as follows:

[0025] In the drawings: 1, cylinder; 101, placing groove; 2, pipe body; 201, elbow; 202, foot support; 3, connecting flange; 4, hole plate filter core; 401, connecting piece; 5, cross fixing plate; 6, top hole plate; 7, screw rod; 8, locking nut; 9, gasket. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0027] Please refer to Figure 1 - Figure 5 As shown in the drawings, the present application is a kind of aerator for sewage treatment, including cylinder 1, installation hole is set to the circumferential surface of cylinder 1, the inside of installation hole is equipped with pipe body 2, one end of pipe body 2 is equipped with connecting flange 3, the inside of cylinder 1 is provided with hole plate filter core 4, hole plate filter core 4 is defined as two and symmetrically distributed, the inside of cylinder 1 is welded with cross fixing plate 5, the upper surface of cylinder 1 is provided with placing groove 101, top hole plate 6 is installed in the inside of placing groove 101, screw hole is set to the upper surface of cross fixing plate 5, screw hole is screw connected with screw rod 7 in the inside, one end of screw rod 7 is sequentially penetrated hole plate filter core 4 and top hole plate 6 and is set up to extend upwards.

[0028] In use, first place the aerator in the sewage pool to be worked, then connect the connecting flange 3 with the external air pump, start the external air pump, so that the gas in the air pump passes through the connecting flange 3 and the pipe body 2 in turn, and then is sprayed out through the elbow 201. Due to the action of the gas, the mixed liquid circulates in and out of the cylinder body 1. During the rising of the gas-liquid, it is cut by the two groups of hole plate filter cores 4 in the cylinder body 1, forming a large number of bubbles. Then a large number of bubbles are further cut by the top hole plate 6, forming a large number of ultra-micro bubbles, which are fully mixed with the surrounding sludge mixture. Through the cooperation of the hole plate filter core 4 and the top hole plate 6, the wing-shaped blade and the cone-shaped blade in the prior art are replaced, avoiding the collision between the solid impurities and the wing-shaped blade and the cone-shaped blade during the rising of the gas-liquid, thereby causing damage to the wing-shaped blade and the cone-shaped blade, and thus losing the effect of manufacturing ultra-micro bubbles, thereby achieving good practical effect.

[0029] The outer surface of the screw rod 7 is threadedly connected with a locking nut 8;

[0030] The locking nut 8 is arranged to fix and install the top hole plate 6 and the cylinder body 1, avoiding the disengagement of the top hole plate 6 from the cylinder body 1 during use.

[0031] The outer surface of the screw rod 7 is sleeved with a gasket 9, the lower surface of the gasket 9 abuts against the upper surface of the top hole plate 6, and the upper surface of the gasket 9 abuts against the lower surface of the locking nut 8;

[0032] The gasket 9 is arranged to fill the gap between the top hole plate 6 and the locking nut 8, increase the tightness of the connection, and prevent loosening;

[0033] The pipe body 2 is provided with an elbow 201 at the end away from the connecting flange 3;

[0034] The peripheral surface of the pipe body 2 is provided with a plurality of foot supports 202, one end of each foot support 202 being welded to the outer surface of the cylinder body 1;

[0035] The foot supports 202 are arranged to increase the strength of the connection between the pipe body 2 and the cylinder body 1, so that they are not easily damaged after long-term use;

[0036] The hole plate filter core 4 is a conical shell structure, and one end of the hole plate filter core 4 is provided with a connecting piece 401;

[0037] The cylinder body 1, the pipe body 2 and the connecting flange 3 are all made of stainless steel;

[0038] The stainless steel has corrosion resistance and strength, thereby reducing the frequency and cost of maintenance and replacement.

[0039] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. An aerator for sewage treatment, comprising a cylinder (1), a mounting hole is formed in the peripheral side of the cylinder (1), a pipe body (2) is arranged in the mounting hole, one end of the pipe body (2) is provided with a connecting flange (3), characterized in that: The inside of the barrel (1) is provided with a perforated plate filter core (4), which is set to two and symmetrically distributed; The inside of the barrel (1) is welded with a cross fixed plate (5), and the upper surface of the barrel (1) is provided with a placing groove (101), and the inside of the placing groove (101) is installed with a top perforated plate (6); The upper surface of the cross fixed plate (5) is provided with a threaded hole, and the inside of the threaded hole is threadedly connected with a screw rod (7), and one end of the screw rod (7) penetrates the perforated plate filter core (4) and the top perforated plate (6) in sequence and is upwardly extended.

2. An aerator for sewage treatment according to claim 1, characterised in that: The outer surface of the screw rod (7) is threadedly connected with a locking nut (8).

3. An aerator for sewage treatment according to claim 1, characterized in that: The outer surface of the screw rod (7) is sleeved with a gasket (9), the lower surface of the gasket (9) abuts against the upper surface of the top perforated plate (6), and the upper surface of the gasket (9) abuts against the lower surface of the locking nut (8).

4. The aerator for sewage treatment according to claim 1, characterized in that: The end of the pipe body (2) away from the connecting flange (3) is provided with an elbow (201).

5. The aerator for sewage treatment according to claim 1, characterized in that: The circumferential surface of the pipe body (2) is provided with a plurality of foot supports (202), and one end of the foot support (202) is welded to the outer surface of the barrel (1).

6. An aerator for sewage treatment according to claim 1, characterized in that: The perforated plate filter core (4) is a conical shell structure, and one end of the perforated plate filter core (4) is provided with a connecting piece (401).

7. An aerator for sewage treatment according to claim 1, characterized in that: The barrel (1), the pipe body (2) and the connecting flange (3) are all made of stainless steel.

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