Liftable aeration device for oxidation ditch

Abstract

The utility model relates to a liftable aeration device for an oxidation ditch. The liftable aeration device comprises a main air pipe, an air pipe valve, a branch air pipe and a liftable aerator, the branch air pipe is welded on the main air pipe, the input end of the branch air pipe is connected with the air pipe valve through a flange, the bottom of the branch air pipe is connected with a plurality of groups of liftable aerators through flanges, and the input end of the main air pipe is supplied with air inwards by the air blower; adjusting supports are arranged outside the two ends of the branch air pipes, and the bottom ends of the adjusting supports are installed on the pool face. The liftable aeration device overcomes the defects that an existing common oxidation ditch aeration system is large in installation difficulty, large in system maintenance workload, high in maintenance cost, uneven in aeration and the like. The device has the characteristics of simplicity and convenience in installation, small maintenance workload of the system, low maintenance cost, capability of adjusting dissolved oxygen and capability of improving aeration uniformity.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a liftable aeration device for an oxidation ditch. Background Art

[0002] Oxidation ditch aeration is a very important wastewater treatment technology, which refers to the process of treating wastewater through an oxidation ditch and then converting harmful substances in the wastewater into harmless substances through aeration. In this process, oxidation ditch and aeration are key links, and their efficiency determines the effect of wastewater treatment, so attention must be paid to their operation and maintenance.

[0003] Aeration is a strengthening measure for oxidation ditch. Aeration in oxidation ditch can improve the efficiency of wastewater treatment. The role of aeration is to blow oxygen into the oxidation ditch. Through the participation of oxygen, the microbial remediation load is increased and the degradation efficiency of pollutants is improved. At the same time, aeration can also increase the number of microorganisms, so that the microorganisms that degrade pollutants can obtain a better growth and reproduction environment in the oxidation ditch, thereby accelerating the treatment speed of the oxidation ditch and improving the quality of wastewater treatment.

[0004] Oxidation ditch aeration is a very important wastewater treatment technology, which can effectively convert organic matter in wastewater into inorganic matter, improve water quality and reduce water pollution. Special attention should be paid to the design and maintenance of oxidation ditches to ensure their normal and efficient operation.

[0005] At present, the commonly used oxidation ditch aeration systems are surface aerator aeration and bottom aerator aeration. Surface aerator usually refers to mechanical aeration equipment, which is a device that uses mechanical force to inject dry compressed air directly into the water through the aeration mechanism to accelerate the dissolution of oxygen and promote the metabolic activities of aquatic organisms. The power efficiency is generally not high, the impeller process is complex and has high requirements for position. Once an error occurs, it will lead to insufficient oxygenation. The surface aerator consumes a lot of power, and once it fails, the maintenance workload is large. Dead corners are prone to appear in the surface aeration pool, and the mud and water in the pool will be unevenly mixed, which will lead to the generation of dead mud. The kinetic energy consumption is large and the aeration efficiency is low. Bottom aerator aeration refers to the use of power to drive the blower to send low-pressure gas to the aerator, which overflows from the micropores of the rubber diaphragm to form tiny bubbles that diffuse into the water. It is easy to clog and break, and has a short lifespan. Because there is no stirring function, sludge deposition is easy to occur. When replacing, it is usually necessary to stop production and clean the pool. Therefore, the commonly used oxidation ditch aeration system currently has defects such as difficulty in installation, large system maintenance workload, high maintenance costs, and uneven aeration.

[0006] In view of this, a liftable aeration device for an oxidation ditch is proposed. Summary of the invention

[0007] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0008] In view of the following technical problems in the prior art: the commonly used oxidation ditch aeration systems are surface aerator aeration and bottom aerator aeration; surface aerator usually refers to mechanical aeration equipment, which is a device that uses mechanical force to directly inject dry compressed air into the water through the aeration mechanism to accelerate the dissolution of oxygen and promote the metabolic activities of aquatic organisms; the power efficiency is generally not high, the impeller process is complex and has high requirements for position. Once an error occurs, it will lead to insufficient oxygenation; the surface aerator consumes a lot of power, and once a failure occurs, the maintenance workload is large; dead corners are prone to appear in the surface aeration pool, and the mud and water in the pool will be unevenly mixed, which will lead to the generation of dead mud. The kinetic energy consumption is large and the aeration efficiency is low; the bottom aerator aeration refers to the use of power to drive the blower to send low-pressure gas to the aerator, overflow from the micropores of the rubber diaphragm, form tiny bubbles and diffuse into the water; it is easy to clog and break, and has a short life; because there is no stirring function, sludge deposition is easy to occur; when replacing, it is usually necessary to stop production and clean the pool. Therefore, the commonly used oxidation ditch aeration system currently has defects such as difficulty in installation, large system maintenance workload, high maintenance costs, and uneven aeration.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: a liftable aeration device for an oxidation ditch, comprising a main air duct, an air duct valve, a branch air duct and a liftable aerator; the branch air duct is welded to the main air duct, the input end of the branch air duct is connected to the air duct valve through a flange, and the bottom of the branch air duct is connected to a plurality of groups of liftable aerators through a flange, wherein the input end of the main air duct is supplied with air by a blower; adjustment brackets are arranged on the outside of both ends of the branch air duct, wherein the bottom end of the adjustment bracket is installed on the pool surface.

[0010] As a preferred technical solution for a liftable aeration device for an oxidation ditch, a hose is installed at one end of the branch air duct close to the air duct valve, the hose is located between the air duct valve and the adjustment bracket, both ends of the hose are fixed to the branch air duct by clamps, the hose is made of rubber, and pagoda joints are welded at the junction of the branch air duct and both ends of the hose.

[0011] As a preferred technical solution for a liftable aeration device for an oxidation ditch, the adjustment bracket consists of a base plate, a bracket base, an adjustment screw, a pipe base and a U-shaped clip. The base plate is fixed to the pool surface by expansion bolts, and the two adjustment screws are vertically welded to the two ends of the top of the bracket base. The base plate and the bracket base provide stable bearing for the adjustment bracket.

[0012] As a preferred technical solution for a liftable aeration device for an oxidation ditch, the two adjusting screw rods extend through the two ends of the pipe base, and the function of the adjusting screw rods is to slightly raise or lower the height of the branch air duct. The pipe base is arranged parallel to the top of the bracket base.

[0013] As a preferred technical solution for a liftable aeration device for an oxidation ditch, the pipe base is equipped with flat washers, spring washers and nuts on the upper and lower sides of the place where the adjusting screw rod passes through, and the U-shaped clip is installed on the top surface of the pipe base. The pipe base and the U-shaped clip are used to fix the branch air duct on the adjusting bracket.

[0014] As a preferred technical solution for a liftable aeration device for an oxidation ditch, the support base and the pipe base are both made of channel steel, the channel steel opening of the support base is at its inner edge, and the channel steel opening of the pipe base is downward.

[0015] The beneficial effects of the present invention are as follows: it is composed of a main air duct, an air duct valve, a hose, an adjustment bracket, a branch air duct and a liftable aerator. The hose, the adjustment bracket, the branch air duct and the liftable aerator can all be prefabricated in the factory. The on-site installation mainly involves docking and bolt tightening. The installation can be carried out without stopping production and water, and the installation is simple and convenient. If the diaphragm of the liftable aerator is found to be damaged after use, the air duct valve can be closed, the flange connection bolts of the branch air duct and the liftable aerator can be directly loosened, and the aerator can be lifted up until it leaves the water surface. After replacing the diaphragm, it can be put into the water again and the flange docking bolts can be tightened. The operation can be carried out without stopping production and water, and the system has a small maintenance workload and low maintenance costs. According to the actual use of the oxidation ditch, the branch air duct can be adjusted upward or downward by adjusting the bracket, which is more in line with actual use, and the dissolved oxygen content can be adjusted and the aeration uniformity can be improved. In summary, a liftable aeration device for an oxidation ditch has the characteristics of simple and convenient installation, small system maintenance workload, low maintenance costs, adjustment of dissolved oxygen content, and improvement of aeration uniformity.

[0016] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1It is a three-dimensional schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic front view of the overall structure of the present invention.

[0020] Figure 3 It is a top view schematic diagram of the present invention.

[0021] Figure 4 It is a three-dimensional schematic diagram of the adjusting bracket structure of the present invention.

[0022] Figure 5 It is a front view schematic diagram of the adjustment support structure of the present invention.

[0023] Figure 6 It is a schematic top view of the adjusting support structure of the present invention.

[0024] Figure numerals: main air duct 1, air duct valve 2, hose 3, clamp 4, adjustment bracket 5, branch air duct 6, liftable aerator 7, tubular aerator 8, adjustment screw 9, U-shaped clip 10, pipe base 11, bracket base 12, bottom plate 13.

[0025] 1. Main air duct; 2. Air duct valve; 3. Hose; 4. Clamp; 5. Adjustment bracket; 6. Branch air duct; 7. Liftable aerator; 8. Tubular aerator; 9. Adjustment screw; 10. U-shaped clip; 11. Pipe base; 12. Bracket base; 13. Bottom plate. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example

[0031] Reference Figures 1 to 6 , is an embodiment of the present invention, which provides a liftable aeration device for an oxidation ditch, comprising a main air duct 1, an air duct valve 2, a branch air duct 6 and a liftable aerator 7;

[0032] The branch air duct 6 is welded to the main air duct 1, and the input end of the branch air duct 6 is connected to the air duct valve 2 through a flange. The bottom of the branch air duct 6 is connected to a plurality of groups of liftable aerators 7 through a flange. The input end of the main air duct 1 is supplied with air by a blower. When the air duct valve 2 is opened, the air in the main air duct 1 enters the branch air duct 6, and finally reaches the liftable aerator 7 for aeration of the oxidation ditch. Adjustment brackets 5 are arranged outside the two ends of the branch air duct 6, and the bottom end of the adjustment bracket 5 is installed on the pool surface. The liftable aerator 7 can adjust the height of the tubular aerator 8 from the pool bottom by the adjustment brackets 5 at both ends of the branch air duct 6, and the adjustable range is about 10 cm.

[0033] A hose 3 is installed at one end of the branch air duct 6 close to the air duct valve 2. The hose 3 is between the air duct valve 2 and the adjustment bracket 5. Both ends of the hose 3 are fixed to the branch air duct 6 by clamps 4. The hose 3 is made of rubber. While transmitting air, it has a certain ductility and is suitable for appropriate stretching and contraction. Pagoda joints are welded at the joints of the branch air duct 6 and the hose 3. Under the action of the clamp 4, it is ensured that the hose 3 will not fall off easily.

[0034] The adjusting bracket 5 is composed of a bottom plate 13, a bracket base 12, an adjusting screw rod 9, a pipe bottom support 11 and a U-shaped card 10; the bottom plate 13 and the bracket base 12 provide a stable load for the adjusting bracket 5. According to the different pool surface elevations at both ends of the branch air pipe 6, the bracket base 12 can be appropriately lengthened or shortened according to the site conditions during production; the adjusting screw rod 9 is used to slightly increase or decrease the height of the branch air pipe 6, thereby changing the distance between the aerator 7 and the pool bottom in the pool; the pipe bottom support 11 and the U-shaped card 10 are used to fix the branch air pipe 6 on the adjusting bracket 5;

[0035] The bracket base 12 and the pipe bottom bracket 11 are both made of channel steel. The channel steel opening of the bracket base 12 is at its inner edge, and the channel steel opening of the pipe bottom bracket 11 is downward, which is both beautiful and can ensure the strength of the bracket.

[0036] The bottom plate 13 is fixed to the pool surface by expansion bolts, and two adjusting screw rods 9 are vertically welded to the two ends of the top of the bracket base 12. The two adjusting screw rods 9 extend through the two ends of the pipe bottom bracket 11. The pipe bottom bracket 11 is equipped with flat washers, spring washers and nuts on the upper and lower sides of the adjusting screw rods 9. The U-shaped clip 10 is installed on the top surface of the pipe bottom bracket 11, wherein the U-shaped clip 10 cooperates with the pipe bottom bracket 11 to limit the branch air duct 6;

[0037] The nut on the adjusting screw rod 9 can be turned to adjust the rise and fall of the pipe base 11. The length of the hose 3 is redundant and has a certain degree of ductility, so that the height of the branch air duct 6 can be adjusted while the height of the main air duct 1 remains unchanged;

[0038] The liftable aerator 7 is composed of a tubular aerator 8, a square tube, an aeration tube and a flange; each liftable aerator 7 is equipped with four tubular aerators 8, which can achieve uniform aeration while ensuring stable strength;

[0039] Through this implementation, it can be achieved that: four tubular aerators 8 are connected to the square tube through threads, the square tube and the aeration tube are vertically welded, and the top of the aeration tube is connected to the branch air pipe 6 through a flange. Under the action of the adjusting bracket 5, the distance between the lifting aerator 7 and the bottom of the pool can be adjusted in real time according to the actual use situation. When the diaphragm of the tubular aerator 8 is damaged and needs to be replaced, the air duct valve 2 is closed without stopping the water and production, and the flange connection bolts between the lifting aerator 7 and the branch air pipe 6 are loosened, and the aeration tube is lifted until the lifting aerator 7 is completely pulled out of the water. The tubular aerator 8 is removed through the threads on the square tube, and the diaphragm is replaced. After the replacement is completed, it is connected to the square tube through threads, and then the lifting aerator 7 is slowly placed in the pool, and the flange connection bolts with the branch air pipe 6 are tightened. Finally, the air duct valve 2 is opened to restore the normal operation of this lifting aerator 7.

[0040] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A liftable aeration device for an oxidation ditch, characterized in that: It comprises a main air duct (1), an air duct valve (2), a branch air duct (6) and a liftable aerator (7); The branch air duct (6) is welded to the main air duct (1), the input end of the branch air duct (6) is connected to the air duct valve (2) via a flange, and the bottom of the branch air duct (6) is connected to a plurality of groups of liftable aerators (7) via a flange, wherein the input end of the main air duct (1) is supplied with air by a blower; Adjustment brackets (5) are disposed outside the two ends of the branch air duct (6), wherein the bottom end of the adjustment bracket (5) is installed on the pool surface; A hose (3) is installed at one end of the branch air duct (6) close to the air duct valve (2). The hose (3) is located between the air duct valve (2) and the adjustment bracket (5). Both ends of the hose (3) are fixed to the branch air duct (6) via clamps (4). The hose (3) is made of rubber. A pagoda joint is welded at the junction of the branch air duct (6) and the hose (3) at both ends.

2. The liftable aeration device for an oxidation ditch according to claim 1, characterized in that: The adjusting bracket (5) is composed of a bottom plate (13), a bracket base (12), an adjusting screw rod (9), a pipe bottom support (11) and a U-shaped clip (10); the bottom plate (13) is fixed to the pool surface by expansion bolts; two adjusting screw rods (9) are vertically welded to the top ends of the bracket base (12); the bottom plate (13) and the bracket base (12) function to provide stable bearing for the adjusting bracket (5).

3. The liftable aeration device for oxidation ditch according to claim 2, characterized in that: The two adjusting screw rods (9) extend through the two ends of the pipe base (11). The adjusting screw rods (9) are used to slightly raise or lower the height of the branch air duct (6). The pipe base (11) is arranged parallel to the upper side of the bracket base (12).

4. The liftable aeration device for an oxidation ditch according to claim 2, characterized in that: The pipe base (11) is provided with flat washers, spring washers and nuts on the upper and lower sides of the place where the adjusting screw rod (9) passes through, and the U-shaped clip (10) is installed on the top surface of the pipe base (11). The pipe base (11) and the U-shaped clip (10) are used to fix the branch air duct (6) on the adjusting bracket (5).

5. The liftable aeration device for oxidation ditch according to claim 2, characterized in that: The support base (12) and the pipe base (11) are both made of channel steel, the channel steel opening of the support base (12) is at its inner edge, and the channel steel opening of the pipe base (11) is downward.

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