A suspended oxygenation and flow-pushing aerator

Abstract

The present invention relates to the technical field of sewage treatment, and particularly to a suspended aeration and flow-pushing aerator, which includes an aerator housing and a fixed frame fixedly connected thereto. A plurality of floating balls for supporting the entire aerator are installed on the fixed frame. The fixed frame is formed by welding a plurality of hollow tubes. An aeration rod extending into the liquid level is installed inside the aerator housing, and an aeration disc is installed at the bottom end of the aeration rod. A connecting sleeve is sleeved on the aeration rod, and the connecting sleeve and the aeration rod are rotatably connected, and their motion states do not interfere with each other. The present invention improves the oxygen supply amount through a combination of oxygenation inside the sewage liquid level, natural oxygen supply outside the sewage liquid level, and oxygen supply by recycling the sewage solution. The above-mentioned methods coexist and utilize the initial power function of the original equipment and the spatial layout, reducing the economic cost of the equipment used in the coexistence of multiple methods, and having a high cost performance while greatly improving the oxygen supply amount.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to a suspended oxygenation and flow-pushing aerator. Background Art

[0002] In the field of liquid manure fermentation, aeration equipment injects oxygen into sewage, thereby increasing the activity of aerobic microorganisms in the solution and improving the sewage treatment effect.

[0003] However, the current aeration equipment only injects oxygen into the sewage to generate turbulent flow and agitation while increasing the oxygen content. Moreover, multiple aeration discs are installed in an array in the sewage tank in advance for aeration, which not only has low maintenance and repair efficiency, but also the efficiency of the oxygen content injected into the sewage tank needs to be improved. Therefore, a suspended oxygenation and flow-pushing aerator is required. Summary of the Invention

[0004] The purpose of the present invention is to solve the following disadvantages in the prior art: low maintenance and repair efficiency and low oxygen content efficiency injected into the sewage tank, and a suspended oxygenation and flow-pushing aerator is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A suspended oxygenation and flow-pushing aerator includes an aerator housing and a fixing frame fixedly connected thereto. A plurality of floating balls for supporting the entire aerator are installed on the fixing frame. The fixing frame is welded by a plurality of hollow tubes. An aeration rod extending into the liquid surface is installed in the aerator housing, and an aeration disc is installed at the bottom end of the aeration rod.

[0007] A connecting sleeve is sleeved on the aeration rod, and the connecting sleeve and the aeration rod are rotatably connected, and their motion states do not interfere with each other. A sealing sleeve with a hollow interior is fixedly connected to the connecting sleeve. The top end of the sealing sleeve is connected to the bottom side wall of the aerator housing through a connecting member. The interior of the sealing sleeve is divided into a plurality of sealed liquid storage cavities by a plurality of partition plates. A second one-way valve is installed in each partition plate. The highest liquid storage cavity is communicated with a circulation pipe. The port of the circulation pipe away from the sealing sleeve is arranged in an inverted Y shape, and a first one-way valve is installed inside the circulation pipe.

[0008] A sealing plug slidably connected to the connecting sleeve is arranged in the lowermost liquid storage cavity. A third one-way valve is installed on the side wall of the sealing sleeve and is located in the lowermost liquid storage cavity. A first connecting rod is installed on the bottom side wall of the sealing plug. The bottom end of the aeration rod is fixedly connected with a limiting sleeve located above the aeration disc. An inclined upward and closed limiting groove is arranged on the limiting sleeve, and the lower end of the first connecting rod is located in the limiting groove.

[0009] Preferably, the upper end of the aeration rod is rotatably connected to a connecting sleeve, the connecting sleeve is fixedly connected to the bottom side wall of the aeration machine housing, a plurality of flow-limiting pipes inclined upward are communicated with the connecting sleeve, a plurality of communication ports inclined upward are arranged on the inner side wall of the aeration rod, the upper ports of each communication port and the lower ports of the flow-limiting pipes are at the same horizontal position, a flow-limiting plate arranged in an inverted V shape is arranged on the side wall of the aeration machine housing, and the notch at the center of the flow-limiting plate is directly above the upper port of the flow-limiting pipe.

[0010] Preferably, a flow-limiting member is installed in each communication port, and the flow-limiting member includes a plurality of flow channels arranged in a hook shape, each flow channel is inclined upward, and the tangential direction of the hook end of each hook-shaped groove is inclined downward.

[0011] Preferably, a filter screen is installed on the side wall of the sealing sleeve, and the filter screen wraps the port of the third one-way valve.

[0012] Preferably, the part of the aeration rod above the liquid surface is made of copper material, and the part below the liquid surface is made of stainless steel material.

[0013] Preferably, at least one rope is installed on the fixing frame.

[0014] Preferably, the connecting member includes a second connecting rod fixedly connected to the bottom side wall of the aeration machine housing, a groove is arranged on the upper side wall of the sealing sleeve, a spring is fixedly connected in the groove, and one end of the spring away from the bottom side wall of the groove is fixedly connected to the bottom end of the second connecting rod.

[0015] Preferably, a flange is fixedly connected to one side of the aeration disc, the end of the flange away from the aeration disc is fixedly connected to the bottom end of the aeration rod, the aeration disc includes an outer ring gear disk formed integrally, and an inner ring gear disk arranged in a convex platform arrangement, and the inner ring gear disk is located inside the outer ring gear disk.

[0016] Preferably, each floating ball is installed on the fixing frame through a locking fastener, an installation column is further fixedly connected to the floating ball, the installation column penetrates through the fixing frame and is stuck inside the fixing frame, the locking fastener includes a wire ring installed at the upper end of the installation column and a fixing buckle installed on the floating ball, and the fixing buckle and the wire ring are wound and connected together.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The whole device floats on the sewage liquid surface and is stabilized by ropes. During the overhaul or maintenance process, it only needs to be towed to the pool side by using the ropes, which is convenient and reduces costs at the same time.

[0019] 2. By means of in - liquid - surface oxygenation of sewage, natural oxygen supply outside the sewage liquid surface, and oxygen supply by recycling the sewage solution, multiple methods coexist, thereby increasing the oxygen supply volume. The co - existence of the above - mentioned methods utilizes the initial power function of the original equipment and the spatial layout, reducing the economic cost of the equipment used in the co - existence of multiple methods, and having a high cost - performance while greatly increasing the oxygen supply volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a front - view structural schematic diagram of a suspended aeration and flow - pushing aerator proposed by the present invention;

[0021] Figure 2 FIG. is a side - view structural schematic diagram of a suspended aeration and flow - pushing aerator proposed by the present invention;

[0022] Figure 3 FIG. is a partial cross - sectional schematic diagram of a sealing sleeve;

[0023] Figure 4 FIG. is a partial cross - sectional structural schematic diagram at the port of a circulation pipe;

[0024] Figure 5 FIG. is a partial cross - sectional structural schematic diagram of a current - limiting member;

[0025] Figure 6 FIG. is a partial structural schematic diagram of an aeration disc;

[0026] Figure 7 FIG. is a partial structural schematic diagram of a connecting member.

[0027] In the figures: 1 fixing frame, 2 current - limiting plate, 3 aerator housing, 4 floating ball, 5 rope, 6 first connecting rod, 7 limiting sleeve, 8 flange, 9 aeration disc, 10 sealing sleeve, 11 current - limiting pipe, 12 sealing plug, 13 circulation pipe, 14 locking part, 15 first one - way valve, 16 outer ring gear disc, 17 inner ring gear disc, 18 current - limiting member, 19 second connecting rod, 20 connecting sleeve, 21 second one - way valve, 22 partition plate, 23 third one - way valve, 24 filter screen, 25 aeration rod, 26 spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Refer to Figures 1-7, A suspended oxygenation and flow-pushing aerator, comprising an aerator housing 3 and a fixing frame 1 fixedly connected thereto. A plurality of floating balls 4 for supporting the entire aerator are installed on the fixing frame 1. The fixing frame 1 is welded by a plurality of hollow tubes. The hollow tubes are provided for laying lines inside. An aeration rod 25 extending into the liquid surface is installed inside the aerator housing 3. An aeration disc 9 is installed at the bottom end of the aeration rod 25. The part of the aeration rod 25 above the liquid surface is made of copper material, and the part below the liquid surface is made of stainless steel material. The use of stainless steel and copper can increase the corrosion resistance of the entire aeration rod 25, avoid the reduction of the aeration volume, and thus increase the aeration effect.

[0030] As Figure 7 shown, a connecting sleeve 20 is sleeved on the aeration rod 25, and the connecting sleeve 20 and the aeration rod 25 are rotatably connected, and their movement states do not interfere with each other. The upper end of the aeration rod 25 is controlled to rotate by a driving motor inside the aerator housing 3, while the connecting sleeve 20 remains stationary and rotating. A sealing sleeve 10 with a hollow interior is fixedly connected to the connecting sleeve 20. The top end of the sealing sleeve 10 is connected to the bottom side wall of the aerator housing 3 through a connecting member. The interior of the sealing sleeve 10 is divided into a plurality of sealed liquid storage cavities by a plurality of partition plates 22. A second one-way valve 21 is also installed in each partition plate 22. The highest liquid storage cavity is communicated with a circulation pipe 13. The port at the end of the circulation pipe 13 away from the sealing sleeve 10 is arranged in an inverted Y shape. A first one-way valve 15 is installed inside the circulation pipe 13. A sealing plug 12 slidably connected to the connecting sleeve 20 is provided in the lowermost liquid storage cavity. A third one-way valve 23 is installed on the side wall of the sealing sleeve 10. The third one-way valve 23 is located in the lowermost liquid storage cavity. A first connecting rod 6 is installed on the bottom side wall of the sealing plug 12.

[0031] As Figure 1 , Figure 2 shown, a limiting sleeve 7 located above the aeration disc 9 is fixedly connected to the bottom end of the aeration rod 25. The limiting sleeve 7 is provided with an inclined upward and closed limiting groove. The lower end of the first connecting rod 6 is located in the limiting groove.

[0032] In the initial state, the height of the first connecting rod 6 is level with or slightly lower than the position of the third one-way valve 23, depending on the lengths of the limit sleeve 7 and the first connecting rod 6. At this time, the bottom end of the first connecting rod 6 is at the highest point of the limit groove. When the limit sleeve 7 rotates, the bottom end of the first connecting rod 6 moves from the highest point to the lowest point of the limit groove. Under the limitation of the limit groove, the first connecting rod 6 moves downward in the vertical direction at this time, driving the sealing plug 12 to move downward. The space inside the lowermost liquid storage cavity increases and the pressure decreases, so that the external solution enters the liquid storage cavity through the third one-way valve 23. When the first connecting rod 6 turns past the lowest end of the limit groove, it starts to move upward. At this time, the sealing plug 12 moves upward and compresses the space inside the liquid storage cavity, and the internal pressure gradually increases. When the internal pressure is greater than or equal to the external pressure, the valve core of the third one-way valve 23 closes. At the same time, when the pressure is greater than that of the adjacent liquid storage cavity, the valve core of the second one-way valve 21 opens, and the solution in the lower liquid storage cavity will enter the upper liquid storage cavity. The limit sleeve 7 rotates continuously, so the first connecting rod 6 and the sealing plug 12 continuously move up and down reciprocally. The continuation of this process will cause the solution in the bottom liquid storage cavity to gradually be pressed into the upper liquid storage cavity, and finally the flow pipe 13 will also be filled with the solution. Before this, the first one-way valve 15 is closed. When the flow pipe 13 is filled with the solution, and at this time when the sealing plug 12 moves upward to convey the solution upward, the pressure in the flow pipe 13 will increase, thereby pushing open the valve core of the first one-way valve 15, and the internal solution sprays out from the port of the flow pipe 13. Under the action of the pressure, when the flow area of the solution changes from wide to narrow and then to wide, a water wall will be formed at the outlet, that is, the diameters of most of the water droplets in the entire water wall tend to be the diameters of the water droplets in the atomized state, and then fall from the air and enter the surface of the sewage solution. During this process, the water droplets contact the air. During the period when they fall into the sewage solution, the water droplets absorb the oxygen in the air and present a semi-saturated state of oxygen capacity, thereby further accelerating the capacity of oxygen to enter the sewage solution, increasing the dissolved oxygen content, thereby increasing the activity of aerobic microorganisms and improving the treatment effect. The above process is an uninterrupted cyclic process, that is, the port of the flow pipe 13 will periodically spray out the sewage solution.

[0033] The upper end of the aeration rod 25 is rotatably connected to a connecting sleeve, and the connecting sleeve is fixedly connected to the bottom side wall of the aeration machine housing 3. A plurality of flow-limiting pipes 11 inclined upward are communicated with the connecting sleeve. A plurality of communication ports inclined upward are arranged on the inner side wall of the aeration rod 25. The upper ports of each communication port and the lower ports of the flow-limiting pipes 11 are at the same horizontal position. A flow-limiting plate 2 arranged in an inverted V shape is arranged on the side wall of the aeration machine housing 3. The notch at the center of the flow-limiting plate 2 is directly above the upper port of the flow-limiting pipe 11. Most sewage pools are built in the atmospheric environment, and air flow will have a wind direction. When there is wind in the weather, especially when it is opposite to the solution spraying direction, due to the small diameter of the water droplets, some solutions will fall on the surface of the aeration machine housing 3. When it accumulates, water droplets will form and drip down along the surface of the aeration machine housing 3. Through the setting of the flow-limiting plate 2, the water droplets fall from the notch in the middle of the flow-limiting plate 2 and then enter the flow-limiting pipe 11 directly below, and enter the communication port along the flow-limiting pipe 11 inclined upward. The aeration rod 25 rotates continuously. When the communication port and the port of the flow-limiting pipe 11 are not aligned, the solution will accumulate at the port of the flow-limiting pipe 11. When they are aligned, the accumulated solution will enter the channel inside the aeration rod 25 along the communication port. This channel is a channel for injecting oxygen into the sewage. When a small amount of air goes out from this communication port, the force exerted on the water droplets is less than the gravity of the water droplets, so there will be no backflow. When these solutions enter the sewage pool through the channel, they are already in a state of complete oxygen saturation, thus further increasing the oxygen content in the sewage pool.

[0034] As Figure 5 shown, a flow-limiting member 18 is installed in each communication port. The flow-limiting member 18 includes a plurality of flow channels arranged in a hook shape. Each flow channel is inclined upward, and the tangent direction of the hook end of each hook-shaped channel is inclined downward. Among them, A is the air flow direction. When air moves upward in the flow channel along the direction of A due to the initial power, due to the hook-shaped setting, a backflow phenomenon will occur, thus offsetting the power of the air flowing upward. Finally, only a very small amount of air will go out from the upper outlet. B is the direction in which the water droplets flow in. There will be no backflow, so there will be no phenomenon of offsetting the power of the water droplets, and they will enter the aeration rod 25 along the flow channel. If the amount of water droplets is sufficient to fill the flow channel, under the action of the pressure difference, the outside air will be brought into the aeration rod 25 along the flow channel, increasing the delivery of oxygen.

[0035] As Figure 7As shown, the connecting piece includes a second connecting rod 19 fixedly connected to the bottom side wall of the aerator housing 3. A groove is provided on the upper side wall of the sealing sleeve 10. A spring 26 is fixedly connected inside the groove. One end of the spring 26 facing away from the bottom side wall of the groove is fixedly connected to the bottom end of the second connecting rod 19. A filter screen 24 is installed on the side wall of the sealing sleeve 10. The filter screen 24 wraps the port of the third one-way valve 23. During the process of the pressure in the bottommost liquid storage cavity gradually increasing, at this time, the sealing plug 12 moves upward. The internal pressure will generate a pressure on the lower end surface of the lowermost partition plate 22. This pressure drives the entire sealing sleeve 10 to move upward a small distance. During this process, the spring 26 is gradually compressed. At the same time, the internal space of the liquid storage cavity will not shrink temporarily. When the spring 26 is compressed to the limit and cannot be compressed further, the entire sealing sleeve 10 cannot move. At this time, the space of the liquid storage cavity will shrink further, thereby breaking through the critical value for opening the valve core of the second one-way valve 21. After the sealing plug 12 moves downward, the pressureless sealing sleeve 10 moves downward and the spring 26 resets. This cyclic process is manifested as the up and down movement of the sealing sleeve 10. On the one hand, it generates turbulence to increase the oxygen capacity. On the other hand, the turbulence effect will make the covering on the filter screen 24 break away, reducing the blockage situation.

[0036] At least one rope 5 is installed on the fixing frame 1. One end of the rope 5 is tied to the fixing frame 1, and the other end is tied to a railing or other fixed object, mainly to stabilize the position of the entire aerator.

[0037] As Figure 1 and Figure 6 As shown, a flange 8 is fixedly connected to one side of the aeration disc 9. The end of the flange 8 facing away from the aeration disc 9 is fixedly connected to the bottom end of the aeration rod 25. The aeration disc 9 includes an outer ring gear disc 16 integrally formed, and an inner ring gear disc 17 arranged in a convex platform shape. The inner ring gear disc 17 is located inside the outer ring gear disc 16. The flange 8, the aeration rod 25, and the aeration disc 9 are all fixedly connected by bolts. Its connection method belongs to the prior art and the working principle will not be described in detail. In addition, with the structure of the inner ring gear disc 17, when rotating at high speed, air bubbles are ejected by using the pressure difference. It can not only reduce the problem of impurity blockage of the aeration holes during the liquid fermentation process, but also enable the air bubbles to have a certain tangential speed during the release process, making their moving path longer, ensuring that the entire fermentation tank can be aerated.

[0038] Each float 4 is installed on the fixing frame 1 through a locking piece 14. A mounting column is also fixedly connected to the float 4. The mounting column passes through the fixing frame 1 and is stuck in the fixing frame 1. The locking piece 14 includes a wire ring installed on the upper end of the mounting column and a fixing buckle installed on the float 4. The fixing buckle and the wire ring are intertwined and connected together. The connection between the mounting column and the fixing frame 1 can be card connection, bolt connection, welding, etc. The closed loop formed by the wire ring, fixing buckle, mounting column and float 4 can ensure the stability of the connection of the float 4. Even if the mounting column falls off from the fixing frame 1, the float 4 will not fall off the fixing frame 1. In addition, the mounting column and the fixing frame 1 can also be disconnected. The float 4 can be installed on the fixing frame 1 only by using the closed loop connection formed. The installation method is determined according to actual conditions.

[0039] The standard parts involved in the above-mentioned bolt connection, such as bolts, nuts, thread grooves, threaded holes, etc., belong to the prior art and are not shown in the figure and will not be described in detail.

[0040] The above equipment can be configured with an intelligent monitoring system, which can monitor the fermentation process in real time, monitor whether the operation of the on-site staff is correct, and detect the ambient temperature and fermentation tank during the fermentation process.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A suspended oxygenated plug flow aerator, comprising an aerator housing (3) and a fixing frame (1) fixedly connected thereto, wherein the fixing frame (1) is provided with a plurality of floating balls (4) for supporting the entire aerator, and the fixing frame (1) is formed by welding a plurality of hollow tubes, characterized in that: An aeration rod (25) that penetrates into the liquid surface is installed in the aeration machine housing (3), and an aeration plate (9) is installed at the bottom end of the aeration rod (25); The aeration rod (25) is sleeved with a connecting sleeve (20), and the connecting sleeve (20) and the aeration rod (25) are rotatably connected, and the movement states of the two do not interfere with each other. The connecting sleeve (20) is fixedly connected with a sealing sleeve (10) with a hollow interior. The top end of the sealing sleeve (10) is connected to the bottom side wall of the aerator housing (3) through a connecting piece. The sealing sleeve (10) is divided into a plurality of sealed liquid storage chambers by a plurality of dividing plates (22). A second one-way valve (21) is also installed in each of the dividing plates (22). The highest liquid storage chamber is connected to a flow pipe (13). The end of the flow pipe (13) facing away from the sealing sleeve (10) is arranged in an inverted Y shape. The flow pipe (13) is installed with a first one-way valve (15). A sealing plug (12) slidably connected to the connecting sleeve (20) is provided in the liquid storage cavity located at the bottom side, a third one-way valve (23) is installed on the side wall of the sealing sleeve (10), the third one-way valve (23) is located in the liquid storage cavity at the bottom side, a first connecting rod (6) is installed on the bottom side wall of the sealing plug (12), the bottom end of the aeration rod (25) is fixedly connected to a limiting sleeve (7) located at the upper end of the aeration plate (9), the limiting sleeve (7) is provided with a limiting groove inclined upward and in a closed loop, and the lower end of the first connecting rod (6) is located in the limiting groove.

2. A suspended oxygenated plug flow aerator according to claim 1, characterized in that The upper end of the aeration rod (25) is rotatably connected to a connecting sleeve, the connecting sleeve is fixedly connected to the bottom side wall of the aerator housing (3), the connecting sleeve is connected to a plurality of flow limiting tubes (11) arranged obliquely upward, the side wall inside the aeration rod (25) is provided with a plurality of connecting ports arranged obliquely upward, the upper port of each connecting port and the lower port of the flow limiting tube (11) are at the same horizontal position, the side wall of the aeration housing (3) is provided with a flow limiting plate (2) arranged in an inverted eight-shaped shape, and the notch at the center of the flow limiting plate (2) is located directly above the upper port of the flow limiting tube (11).

3. A suspended oxygenated plug flow aerator according to claim 2, characterized in that: A flow limiting member (18) is installed in each of the communication ports, the flow limiting member (18) comprising a plurality of flow slots arranged in a hook shape, each of the flow slots being arranged obliquely upward, and the tangent direction of the hook end of each hook slot is obliquely downward.

4. A suspended oxygenated plug flow aerator according to claim 3, characterized in that: A filter screen (24) is installed on the side wall of the sealing sleeve (10), and the filter screen (24) wraps the port of the third one-way valve (23).

5. A suspended oxygenated plug flow aerator according to claim 4, characterized in that: The portion of the aeration rod (25) located above the liquid surface is made of copper material, and the portion located below the liquid surface is made of stainless steel material.

6. A suspended oxygenated plug flow aerator according to claim 1, characterized in that: At least one rope (5) is installed on the fixing frame (1).

7. A suspended oxygenated plug flow aerator according to claim 5, characterized in that: The connecting member comprises a second connecting rod (19) fixedly connected to the bottom side wall of the aerator housing (3); the upper side wall of the sealing sleeve (10) is provided with a groove, a spring (26) is fixedly connected in the groove, and one end of the spring (26) facing away from the bottom side wall of the groove is fixedly connected to the bottom end of the second connecting rod (19).

8. A suspended oxygenated plug flow aerator according to claim 6, characterized in that: A flange (8) is fixedly connected to one side of the aeration plate (9); an end of the flange (8) facing away from the aeration plate (9) is fixedly connected to the bottom end of the aeration rod (25); the aeration plate (9) comprises an outer ring toothed plate (16) formed in one piece, and an inner ring toothed plate (17) arranged in a boss-like manner; the inner ring toothed plate (17) is located inside the outer ring toothed plate (16).

9. A suspended oxygenated plug flow aerator according to claim 7, characterized in that: Each of the floats (4) is mounted on the fixing frame (1) via a locking member (14); a mounting column is also fixedly connected to the float (4); the mounting column passes through the fixing frame (1) and is clamped in the fixing frame (1); the locking member (14) comprises a wire ring mounted on the upper end of the mounting column and a fixing buckle mounted on the float (4); the fixing buckle and the wire ring are intertwined and connected together.

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