Aeration device for sewage treatment

Abstract

The present application relates to sewage treatment technical field, specifically to a kind of sewage treatment aeration device, comprising: aerator, adjusting unit according to water quantity adjustment aeration quantity, the treatment unit that the scum on water surface is cleaned up and collected;The adjusting unit includes: the outer tube of the aerator gas supply, inner tube, control the gas inlet piece of the inner tube to outer tube admission.This application, by the setting of lower floating plate, upper floating plate and connecting floating plate, drive inner tube to adjust height, avoid water level lower time, aerator gas inlet pipe is exposed outside, under windy weather, sway under the influence of wind force and cause damage, while according to water quantity, the aeration quantity of aerator can be naturally adjusted, without manual adjustment, more convenient, while due to lower floating plate, upper floating plate and connecting floating plate float on water surface, and can be collected and handled on the scum on water surface, while can be collected and handled to the leaves blown to water surface under windy weather, good use effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, specifically to a sewage treatment aeration device. BACKGROUND

[0002] Sewage treatment refers to the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or for reuse. This process is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc. Aeration equipment is a key equipment in the sewage treatment process, especially in biological pretreatment of water supply and biological treatment of sewage. Its main function is to transfer oxygen in the air to the liquid in the aeration tank through the aeration device to supply the required amount of oxygen for aerobic metabolism, and to mix the water in the tank uniformly to achieve the purpose of biological treatment.

[0003] The invention with application number CN202310818370.5 discloses a high-efficiency sewage treatment aeration device, belonging to the technical field of sewage treatment, comprising an aeration tank and an oxygen generator. The bottom of the aeration tank is installed with a round box, the inside of the aeration tank is provided with a cross pipe, the inside of the round box is rotatably connected with a support pipe, and the top end of the support pipe penetrates through the aeration tank and is fixedly connected to the inside of the cross pipe. The invention can introduce oxygen into the aeration tank in a high-pressure manner. High-pressure airflow usually impacts the liquid surface at a high speed, producing large bubbles or gas-liquid interfaces, thereby increasing the gas-liquid contact area, ensuring oxygen utilization efficiency, reducing waste, being more energy-efficient, and being intermittent in each high-pressure impact. In each oxygen introduction process, the high pressure is used to impact the aeration head, reducing the occurrence of residue and blockage, and the used oxygen can be reused to drive the aeration head to move, increase the aeration range, and further improve the aeration effect.

[0004] However, the patent cannot automatically adjust the required aeration amount according to the amount of sewage in the aeration tank. If the amount of water in the sewage tank is small and the aeration amount is not adjusted, the high aeration amount may cause the dissolved oxygen concentration in the mixed liquid in the aeration tank to be too high, exceeding the optimal range required for biological treatment.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. SUMMARY

[0006] The present application aims to provide a sewage treatment aeration device that can effectively solve the above technical problems.

[0007] To achieve the purpose of the present application, the following technical solutions are adopted:

[0008] The utility model provides an aeration device for sewage treatment, including aerator, the adjusting unit of the aeration amount is adjusted according to water volume, the processing unit of the water surface scum is cleaned and collected,

[0009] The adjusting unit includes an outer pipe for supplying air to the aerator, an inner pipe, and an air inlet member for controlling the air inlet of the inner pipe into the outer pipe.

[0010] The air inlet member includes a fixed block fixedly connected to the inner pipe, an air inlet plate two fixedly connected to the fixed block, an air inlet plate one rotatably installed on the fixed block, air inlet holes opened on the air inlet plate one and the air inlet plate two around the axis of the air inlet plate one, and a connecting shaft fixedly connected to the air inlet plate one.

[0011] The inner wall of the outer pipe is provided with a guide groove for guiding the rotation of the air inlet plate one, and the connecting shaft is slidably connected to the inner wall of the guide groove. The guide groove is arc-shaped.

[0012] Further, the processing unit includes a connecting floating plate for driving the inner pipe to rise and fall with the water surface, a lower floating plate fixedly connected to the connecting floating plate, and an upper floating plate slidably installed on the lower floating plate.

[0013] Further, the lower floating plate is rotatably connected to a winding roller, a filter screen wound on the winding roller, an unwinding roller connected to the filter screen, a pressure roller for adjusting the surface tension of the filter screen, a connecting plate fixedly connected to one side of the lower floating plate, a limiting groove opened on the connecting plate, a rotating cylinder rotatably connected to the lower floating plate, a collecting plate fixedly connected to the rotating cylinder, a cleaning member for cleaning the filter screen, and an elastic connecting member fixedly connected to the cleaning member. The pressure roller is installed on the connecting plate.

[0014] Further, the unwinding roller is located inside the connecting plate, and one end of the unwinding roller is fixedly installed with a cam.

[0015] Further, the inner wall surface of the rotating cylinder is provided with a guide groove, and the guide groove is composed of arc-shaped guide segments and straight guide segments connected in sequence.

[0016] Further, the cleaning member is obliquely arranged, and one side of the cleaning member in contact with the filter screen is provided with a cleaning brush.

[0017] Further, one side surface of the upper floating plate close to the connecting plate is fixedly installed with a connecting block, one side surface of the upper floating plate close to the lower floating plate is fixedly installed with a guide block, and collecting rods are equidistantly connected to the upper floating plate.

[0018] Further, the upper floating plate is slidably connected to the limiting groove through the connecting block, and the surface of the guide block is fixedly connected to a limiting block.

[0019] Further, the connecting floating plate is fixedly installed on the inner pipe, a sliding groove is arranged on the surface of the connecting floating plate, a connecting rod for moving the upper floating plate is slidably connected to the surface of the sliding groove, an air inlet is fixedly installed on the connecting floating plate, and an electric telescopic rod is fixedly installed on the air inlet.

[0020] Further, the connecting rod is fixedly connected with the upper floating plate, and one end of the electric telescopic rod is fixedly connected with the connecting rod.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] The sewage treatment aeration device has the advantages that: the inner pipe height is adjusted by the lower floating plate, the upper floating plate and the connecting floating plate, the air inlet pipe of the aerator is not exposed outside when the water level is low, the aerator is not damaged due to shaking under the influence of wind force in windy weather, the aeration amount of the aerator can be naturally adjusted according to the water amount without manual adjustment, and the use is more convenient; the lower floating plate, the upper floating plate and the connecting floating plate float on the water surface and can collect and treat floating sludge on the water surface, and can collect and treat leaves blown to the water surface in windy weather, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the principles of the present application, and do not constitute a limitation of the present application.

[0024] Figure 1 It is a schematic view of the sewage treatment aeration device of the present application;

[0025] Figure 2 It is a schematic view of the cooperation between the outer pipe and the inner pipe of the sewage treatment aeration device of the present application;

[0026] Figure 3 It is a schematic view of the cooperation between the air inlet plate one and the air inlet plate two of the sewage treatment aeration device of the present application;

[0027] Figure 4 It is a schematic view of the lower floating plate of the sewage treatment aeration device of the present application;

[0028] Figure 5 It is a schematic view of the cooperation between the rotating cylinder and the collecting plate of the sewage treatment aeration device of the present application;

[0029] Figure 6 It is a schematic view of the cooperation between the unwinding roller and the cam of the sewage treatment aeration device of the present application;

[0030] Figure 7 It is a schematic view of the cleaning element of the sewage treatment aeration device of the present application;

[0031] Figure 8 It is the schematic view of the cooperation of the upper floating plate and the lower floating plate of the sewage treatment aeration device of the present application;

[0032] Figure 9 It is the schematic view of the guide block of the sewage treatment aeration device of the present application;

[0033] Figure 10 It is the schematic view of the sewage treatment aeration device of the present application; Figure 4 It is the enlarged schematic view of A in the present application;

[0034] Figure 11 It is the enlarged schematic view of B in the present application; Figure 8

[0035] Figure 12 It is the schematic view of the connecting floating plate of the sewage treatment aeration device of the present application;

[0036] Figure 13 It is the schematic view of the waterwheel of the sewage treatment aeration device of the present application.

[0037] In the figure: 1, aerator; 2, adjusting unit; 21, outer pipe; 22, guide groove; 23, connecting shaft; 24, air inlet plate one; 25, fixed block; 26, air inlet plate two; 27, air inlet hole; 28, inner pipe; 3, treatment unit; 31, lower floating plate; 311, winding roller; 312, filter screen; 313, unwinding roller; 3131, cam; 314, pressing roller; 315, connecting plate; 316, limiting groove; 317, rotating cylinder; 3171, guide groove; 318, collecting plate; 319, cleaning piece; 3191, cleaning brush; 3110, elastic connecting piece; 32, upper floating plate; 321, connecting block; 322, guide block; 3221, limiting block; 323, collecting rod; 33, connecting floating plate; 331, sliding groove; 332, connecting rod; 333, air inlet; 334, electric telescopic rod. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the technical scheme in the embodiments of the present application to make a clear and complete description, obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments.

[0039] ​In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. When a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right", and the like used herein are only for illustrative purposes.

[0040] As shown in Figures 1 to 13 The present application is a sewage treatment aeration device, comprising: an aerator 1, a regulating unit 2 for adjusting the aeration amount according to the water volume, and a treatment unit 3 for cleaning and collecting water surface scum. Due to the influence of the natural environment, in the case of heavy wind and rain, the water volume in the aeration tank increases, and the specific increase in the total amount cannot be accurately calculated by manual calculation. At this time, the aeration effect of the aerator 1 on the sewage decreases. The present application installs the aerator 1 at the bottom of the aeration tank by manual installation. The air inlet end of the aerator 1 floats on the water surface under the action of the treatment unit 3, and the air inlet amount of the aerator 1 is adjusted by the different heights of the water surface, so that the aeration amount does not need to be adjusted by manual intervention. The treatment unit 3 floats on the water surface and can collect the leaves that fall on the water surface in rainy weather, avoiding the impact on the treatment effect of the sewage.

[0041] The regulating unit 2 comprises: an outer pipe 21 for supplying air to the aerator 1, an inner pipe 28, and an air inlet member for controlling the air inlet of the inner pipe 28 to the outer pipe 21; the aerator 1 is flange-connected with the outer pipe 21.

[0042] The air inlet piece comprises a fixed block 25 fixedly connected to the inner tube 28, an air inlet plate two 26 fixedly connected to the fixed block 25, an air inlet plate one 24 rotatably installed on the fixed block 25, and air inlet holes 27 provided on the air inlet plate one 24 and the air inlet plate two 26 around the axis of the air inlet plate one 24, and the air inlet plate one 24 is fixedly connected with a connecting shaft 23; a guide groove 22 for guiding the rotation of the air inlet plate one 24 is provided on the inner wall of the outer tube 21, and the connecting shaft 23 is slidably connected with the inner wall of the guide groove 22; the guide groove 22 is provided in an arc shape along the inner wall of the outer tube 21, the connecting floating plate 33 is fixedly installed on the inner tube 28, when the water level in the aeration tank rises, the inner tube 28 rises along with the water level surface under the action of the connecting floating plate 33, at this time, the connecting shaft 23 moves along the guide groove 22 and drives the air inlet plate one 24 to rotate, so that the air inlet plate one 24 coincides with the air inlet holes 27 on the air inlet plate two 26, the air passage area becomes larger, the air passage volume becomes larger, and the aeration amount is increased.

[0043] It should be pointed out that, as can be seen from Figure 2 It can be seen from the above that the guide groove 22 is helically raised along the inner wall of the outer tube 21, therefore, when the inner tube 28 rises, the air inlet plate one 24 rotates, which not only can adjust the air inlet amount, but also can adjust the overall length of the inner tube 28 and the outer tube 21, so that when the water level is low, the length of the inner tube 28 exposed outside the water surface is not too long, and the risk of damage to the inner tube 28 is reduced.

[0044] The processing unit 3 comprises a connecting floating plate 33 for driving the inner tube 28 to rise and fall with the water surface, a lower floating plate 31 fixedly connected to the connecting floating plate 33, an upper floating plate 32 slidably installed on the lower floating plate 31, and two groups of the upper floating plate 32 and the lower floating plate 31 are provided on both sides of the connecting floating plate 33, so that the processing unit 3 has greater buoyancy on the water surface, and the aeration machine 1 can stably inhale air.

[0045] The lower floating plate 31 is rotatably connected with a winding roller 311, a filter screen 312 wound on the winding roller 311, a unwinding roller 313 connected to the filter screen 312, a pressure roller 314 for adjusting the surface tension of the filter screen 312, a connecting plate 315 fixedly connected to one side of the lower floating plate 31, a limiting groove 316 provided on the connecting plate 315, a cleaning piece 319 for cleaning the filter screen 312, and an elastic connecting piece 3110 fixedly connected to the cleaning piece 319; the pressure roller 314 is installed on the connecting plate 315, the upper floating plate 32 and the lower floating plate 31 are provided with water inlets on one side, the winding roller 311 is rotatably connected with the lower floating plate 31 through a torsional spring, and Figure 13As shown, the water inlet is installed with a waterwheel on the lower floating plate 31, one end of the unwinding roller 313 is installed with a power source, the power source drives the waterwheel to rotate through the transmission belt and the transmission gear, and the water surface scum is sent to the inside of the lower floating plate 31, and the scum is filtered through the filter screen 312 in the lower floating plate 31, and at the same time, the power source continuously drives the waterwheel to rotate, so that the unwinding roller 313 continuously unwinds the filter screen 312, and the winding roller 311 rotates under the action of the torsional spring to wind the filter screen 312, and finally after the filter screen 312 on the surface of the unwinding roller 313 is completely unwound, the power source is started to drive the unwinding roller 313 to reverse, so that the filter screen 312 is wound on the surface of the unwinding roller 313, and under the tension of the filter screen 312, the winding roller 311 is driven to rotate, and at the same time, the torsional spring is deformed under stress, so that the winding roller 311 can collect the filter screen 312 under the action of the torsional spring in the future. When the filter screen 312 is wound between the winding roller 311 and the unwinding roller 313, the cleaning element 319 can clean the surface of the filter screen 312, and the surface of the cleaning element 319 in contact with the filter screen 312 is provided with a cleaning brush 3191, which can improve the cleaning effect of the filter screen 312. The inclined arrangement of the cleaning element 319 can make the impurities on the filter screen 312 move along the inclined surface of the cleaning element 319 from the upper end to the lower end when the cleaning element 319 cleans the filter screen 312, so that the cleaned impurities have a concentrated outlet, and the sewage discharge effect is good.

[0046] Here, it needs to be explained in detail that the unwinding roller 313 is located in the connecting plate 315, and one end of the unwinding roller 313 is fixedly installed with a cam 3131, and the impurities on the surface of the filter screen 312 will enter the inside of the connecting plate 315 for storage after being discharged, and in addition, the cam 3131 rotates with the unwinding roller 313, and abuts against and separates from the cleaning element 319, and the cleaning element 319 swings under the action of the cam 3131 and the elastic connecting element 3110, which can improve the cleaning effect of the cleaning element 319 on the filter screen 312, and the power source is preferably an electric motor.

[0047] For the above, when the waterwheel rotates, it will also bring up a large amount of water when the scum enters the lower floating plate 31, which increases the contact amount of sewage and oxygen and speeds up the sewage reaction speed.

[0048] When the leaves on the surface of the sewage enter the lower floating plate 31 with the scum, the leaves may accumulate on the surface of the filter screen 312 due to the inability to be cleaned by the cleaning piece 319, resulting in a decrease in the filtering effect of the filter screen 312 on the scum. The application is provided with the rotating cylinder 317 rotatably connected to the lower floating plate 31, the guide groove 3171 formed in the inner wall surface of the rotating cylinder 317, the collection plate 318 fixedly connected to the rotating cylinder 317, the connecting block 321 fixedly installed on the side surface of the upper floating plate 32 close to the connecting plate 315, the guide block 322 fixedly installed on the side surface of the upper floating plate 32 close to the lower floating plate 31, the limiting block 3221 fixedly connected to the surface of the guide block 322, and the collection rod 323 equidistantly connected to the upper floating plate 32, and the upper floating plate 32 is slidably connected to the limiting groove 316 through the connecting block 321.

[0049] The upper floating plate 32 moves downward along the limiting groove 316 through the connecting block 321, so that the guide block 322 moves downward inside the rotating cylinder 317. At this time, the limiting block 3221 is inside the guide groove 3171 and presses the inner wall of the guide groove 3171, so that the rotating cylinder 317 rotates under the action of the limiting block 3221 and drives the collection plate 318 to rotate. At the same time, the collection rod 323 fixedly connected to the upper floating plate 32 moves downward, pierces the leaves on the filter screen 312, collects them, and then the upper floating plate 32 moves upward, so that the collection plate 318 resets. When the leaves on the collection rod 323 fall under the action of gravity, they will fall onto the surface of the collection plate 318 for collection. Specifically, the guide groove 3171 is composed of an arc-shaped guide section and a straight guide section connected in sequence. When the limiting block 3221 moves in the arc-shaped guide section, the collection plate 318 rotates. When the limiting block 3221 moves in the straight guide section, the collection rod 323 moves through the leaves, so that the movement of the collection plate 318 and the collection rod 323 does not interfere with each other, the collection of the leaves on the filter screen 312 is completed, the filtering effect of the filter screen 312 on the scum is ensured, and in addition, the collection plate 318 can clean the opening on the lower floating plate 31 when it rotates, avoiding the blockage of the water inlet of the lower floating plate 31 and affecting the cleaning of the scum.

[0050] Need to explain for the above structure is, when the filter screen 312 is wound on the unwinding roller 313 by the winding roller 311 or wound on the winding roller 311 by the unwinding roller 313, the waterwheel transports the scum into the lower floating plate 31, collects and processes the scum, and the side of the lower floating plate 31 is provided with a drain hole, which can drain the sewage filtered by the filter screen 312. In this process, the upper floating plate 32 continuously and periodically collects and cleans the leaves on the surface of the filter screen 312 through the following structure, the connecting floating plate 33 is provided with a sliding groove 331 on the surface, the sliding groove 331 is slidingly connected with a connecting rod 332 for driving the upper floating plate 32 to move, an air inlet 333 is fixedly installed on the connecting floating plate 33, an electric telescopic rod 334 is fixedly installed on the air inlet 333, the connecting rod 332 is fixedly connected with the upper floating plate 32, one end of the electric telescopic rod 334 is fixedly connected with the connecting rod 332, and the connecting rod 332 is connected with two groups of upper floating plates 32. Under the action of the electric telescopic rod 334, the connecting rod 332 is pushed to slide in the sliding groove 331, and the upper floating plate 32 is moved downward. The upper floating plate 32 is limited in the sliding groove 331 during movement, so that the upper floating plate 32 does not shake during movement.

[0051] Finally, the present application adjusts the height of the inner tube 28 by the setting of the lower floating plate 31, the upper floating plate 32 and the connecting floating plate 33, so that the air inlet pipe of the aerator 1 is not exposed in low water level, and is not affected by wind force in windy weather, and the aeration amount of the aerator 1 can be naturally adjusted according to the water amount without manual adjustment, which is more convenient. Since the lower floating plate 31, the upper floating plate 32 and the connecting floating plate 33 float on the water surface and can collect and process the scum on the water surface, and can collect and process the leaves blown to the water surface in windy weather, the use effect is good.

[0052] Working principle:

[0053] The aeration machine 1 is installed at the bottom of the aeration tank by artificial, and then sewage is injected into the aeration tank, when the water level in the aeration tank rises, the inner pipe 28 rises with the water level surface under the action of the connecting floating plate 33, at this time the connecting shaft 23 moves along the guide groove 22 and drives the air inlet plate one 24 to rotate, so that the air inlet plate one 24 coincides with the air inlet hole 27 on the air inlet plate two 26, the air inlet area becomes larger, the air inlet volume becomes more, and the aeration amount is increased, and when the inner pipe 28 rises, the air inlet plate one 24 rotates, so that not only the air inlet volume can be adjusted, but also the inner pipe 28 can rise and fall in the outer pipe 21, so that the overall length of the inner pipe 28 and the outer pipe 21 can be adjusted, thereby avoiding that when the water level is low, the length of the inner pipe 28 exposed outside the water surface is too long, then the aeration machine 1 is controlled to aerate the sewage, and after the treatment is completed, the sewage is static and precipitated, in this process, the motor drives the waterwheel to rotate to send the scum on the surface of the sewage to the inside of the lower floating plate 31, and the scum is filtered through the filter screen 312 in the lower floating plate 31, and at the same time, the power source continuously drives the waterwheel to rotate, so that the unwinding roller 313 continuously unwinds the filter screen 312, and the winding roller 311 rotates under the action of the torsional spring to wind and collect the filter screen 312, finally after the filter screen 312 on the surface of the unwinding roller 313 is completely unwound, the power source is started to drive the unwinding roller 313 to reverse, so that the filter screen 312 is wound on the surface of the unwinding roller 313, and under the tension of the filter screen 312, the winding roller 311 is driven to rotate, and at the same time, the torsional spring is stressed and deformed, so that the winding roller 311 can collect the filter screen 312 under the action of the torsional spring in the subsequent process, when the filter screen 312 is wound between the winding roller 311 and the unwinding roller 313, the cleaning piece 319 can clean the surface of the filter screen 312, in addition, one side of the cleaning piece 319 in contact with the filter screen 312 is provided with a cleaning brush 3191, which can improve the cleaning effect of the filter screen 312, and the inclined arrangement of the cleaning piece 319 can make the impurities on the filter screen 312 move along the inclined surface of the cleaning piece 319 from the upper end to the lower end when the cleaning piece 319 cleans the filter screen 312, so that the cleaned impurities have a concentrated outlet, and the sewage discharge effect is good, it needs to be explained in detail that the unwinding roller 313 is located in the connecting plate 315, one end of the unwinding roller 313 is fixedly installed with a cam 3131, and the impurities on the surface of the filter screen 312 are discharged into the connecting plate 315 for storage, in addition, when the unwinding roller 313 rotates, the cam 3131 rotates and abuts against and separates from the cleaning piece 319, the cleaning piece 319 swings under the action of the cam 3131 and the elastic connecting piece 3110, so that the cleaning effect of the cleaning piece 319 on the filter screen 312 is improved, when the leaves on the surface of the sewage enter the lower floating plate 31 with the scum, the electric telescopic rod 334 is started to drive the connecting rod 332 to slide in the sliding groove 331, and the upper floating plate 32 moves downward, so that the guide block 322 moves downward in the rotating cylinder 317, at this time the limiting block 3221 is in the guide groove 3171 and presses the inner wall of the guide groove 3171,The rotating cylinder 317 is rotated under the action of the limiting block 3221, and drives the collecting plate 318 to rotate, and the collecting rod 323 fixed on the floating plate 32 is lowered, the leaves on the filter screen 312 are pierced and collected, then the floating plate 32 is raised, the collecting plate 318 is reset, and when the leaves on the collecting rod 323 fall under the action of gravity, they fall onto the surface of the collecting plate 318 for collection.

[0054] The standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here, and the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0055] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the application.

Claims

1. An aeration device for wastewater treatment, characterized in that, include: Aerator, adjustment unit for adjusting aeration volume according to water volume in aeration tank, and treatment unit for cleaning and collecting scum on water surface; The regulating unit includes: an outer pipe for supplying air to the aerator, an inner pipe, and an air inlet component for controlling the air intake from the inner pipe to the outer pipe; The air intake component includes: a fixed block fixedly connected to the inner tube, an air intake plate two fixedly connected to the fixed block, an air intake plate one rotatably mounted on the fixed block, an air intake hole formed around the axis of the air intake plate one on the air intake plate one and the air intake plate two, and a connecting shaft fixedly connected to the air intake plate one. The inner wall of the outer tube is provided with a guide groove to guide the rotation of the air intake plate, and the connecting shaft is slidably connected to the inner wall of the guide groove; the guide groove is arc-shaped. The processing unit includes: a connecting float that drives the inner tube to rise and fall with the water surface and an air inlet fixedly installed on the connecting float; When the water level in the aeration tank rises, the inner pipe rises with the water level under the action of the connecting float plate. At this time, the connecting shaft moves along the guide groove and drives the first air inlet plate to rotate, so that the first air inlet plate and the air inlet hole on the second air inlet plate coincide, which increases the ventilation area and the ventilation volume, thereby increasing the aeration volume.

2. The aeration device for wastewater treatment as described in claim 1, characterized in that, The processing unit also includes: a lower floating plate fixedly connected to the connecting floating plate, and an upper floating plate slidably mounted on the lower floating plate.

3. The aeration device for wastewater treatment as described in claim 2, characterized in that, The aeration device for wastewater treatment further includes: a take-up roller rotatably connected to the surface of the lower float plate; a filter screen wound on the take-up roller; an unwind roller connected to the filter screen; a pressure roller for adjusting the surface tension of the filter screen; a connecting plate fixedly connected to one side of the lower float plate; a limiting groove formed on the connecting plate; a rotating cylinder rotatably connected to the lower float plate; a collection plate fixedly connected to the rotating cylinder; a cleaning component for cleaning the filter screen; and an elastic connector fixedly connected to the cleaning component; the pressure roller is mounted on the connecting plate.

4. The aeration device for wastewater treatment as described in claim 3, characterized in that, The unwinding roller is located inside the connecting plate, and a cam is fixedly installed at one end of the unwinding roller.

5. An aeration device for wastewater treatment as described in claim 3, characterized in that, The inner wall surface of the rotating cylinder is provided with a guide groove, which is composed of an arc-shaped guide section and a straight guide section connected in sequence.

6. The aeration device for wastewater treatment as described in claim 3, characterized in that, The cleaning component is inclined, and a cleaning brush is provided on the side of the cleaning component that contacts the filter screen.

7. An aeration device for wastewater treatment as described in claim 3, characterized in that, A connecting block is fixedly installed on the surface of the upper floating plate near the connecting plate, a guide block is fixedly installed on the surface of the upper floating plate near the lower floating plate, and collecting rods are connected at equal intervals on the upper floating plate.

8. An aeration device for wastewater treatment as described in claim 7, characterized in that, The upper floating plate is slidably connected to the limiting groove via a connecting block, and the guiding block surface is fixedly connected to a limiting block.

9. An aeration device for wastewater treatment as described in claim 2, characterized in that, The surface of the connecting float is provided with a sliding groove, and a connecting rod that drives the upper float to move is slidably connected to the surface of the sliding groove. An electric telescopic rod is fixedly installed on the air inlet.

10. An aeration device for wastewater treatment as described in claim 9, characterized in that, The connecting rod is fixedly connected to the upper floating plate, and one end of the electric telescopic rod is fixedly connected to the connecting rod.

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