A cyclone aeration device

Abstract

The present invention belongs to the technical field of sewage treatment, and in particular, relates to a cyclone aeration device. The cyclone aeration device of the present invention includes an aeration tank, a gas pipeline, a driving mechanism and a cyclone mechanism. The gas pipeline is used to introduce gas into the sewage. The driving mechanism can drive the cyclone mechanism to rotate to change the flow direction of the gas in the sewage. The cyclone mechanism is arranged above the gas outlet. The cyclone mechanism includes a first driving frame and a stirring blade. The stirring blade is assembled on the first driving frame. The driving mechanism can drive the first driving frame and the stirring blade to move up and down and rotate synchronously to push the sewage and gas downward and radially outward. The cyclone aeration device of the present invention uses the stirring blade to push the sewage and the gas introduced from the gas outlet downward and outward, which prolongs the moving distance and residence time of the gas in the sewage, and effectively improves the aeration effect.

Description

Technical Field

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

[0002] In the process of sewage treatment, aeration is a common treatment technology. Its main purpose is to dissolve gases such as oxygen in sewage to promote sewage treatment, or to expel unwanted gases and volatile substances in sewage into the air. As one of the aeration methods, cyclone aeration has the advantages of low operating costs and low clogging, so it has been widely promoted and applied.

[0003] Common cyclone aeration equipment generally sets a rotating mixing flow mechanism to make bubbles form a spiral airflow when entering the sewage, thereby achieving effective exchange between gas and liquid. For example, a lifting jet cyclone combined aerator disclosed in the Chinese utility model patent with the authorization announcement number CN216106262U mainly includes an exhaust pipe and a spiral guide plate. The spiral guide plate is arranged in the exhaust pipe with a gap fit. The gas in the exhaust pipe forms a spiral airflow and enters the sewage through the rotation of the spiral guide plate, thereby achieving uniform exchange of airflow and sewage, with low energy consumption and not easy to be blocked.

[0004] However, the gas-liquid exchange efficiency in the existing cyclone aeration equipment is low, and long-term continuous aeration is required to meet the subsequent sewage treatment needs, resulting in low sewage treatment efficiency. When applied to large-scale sewage treatment projects, a longer engineering cycle is required, which has certain limitations. Summary of the invention

[0005] Based on this, the present application provides a cyclone aeration device to solve the problem of low aeration efficiency of the cyclone aeration device in the prior art.

[0006] The above-mentioned purpose is achieved through the following technical scheme: a cyclone aeration device, comprising an aeration tank and an aeration unit, the aeration unit comprising a gas pipeline, a driving mechanism and a cyclone mechanism, the gas outlet of the gas pipeline extends into the sewage in the aeration tank to introduce gas into the sewage, the driving mechanism can drive the cyclone mechanism to rotate to change the flow direction of the gas in the sewage, the cyclone mechanism is arranged above the gas outlet of the gas pipeline, the cyclone mechanism comprises a first driving frame and a stirring blade, the stirring blade is assembled on the first driving frame, the driving mechanism can drive the first driving frame to move up and down and rotate, so as to drive the stirring blade to move up and down and rotate synchronously, and the stirring blade can push the sewage in the aeration tank and the gas introduced from the gas outlet to move downward and radially outward when rotating.

[0007] Its beneficial effect is that: a cyclone mechanism is provided to push the sewage in the aeration tank and the gas introduced from the gas outlet to move downward and flow outward, so that the gas introduced from the gas outlet first moves downward and outward for a distance before floating up, effectively prolonging the residence time of the gas in the sewage, thereby improving the gas-liquid exchange efficiency. At the same time, the cyclone mechanism pushes the sewage below to flow downward and outward, driving the sewage above the cyclone mechanism to move inward and downward to fill the gap, thereby forming a flow path for the sewage to circulate up and down, and the sewage flow path and the air flow movement path formed by the gas discharged from the gas outlet cooperate with each other, greatly improving the aeration effect of the sewage.

[0008] Furthermore, the stirring blade has a guide surface, and the guide surface forms an angle α with the vertical direction, α is an acute angle, and the stirring blade pushes the sewage in the aeration tank and the gas introduced from the outlet to move downward and flow radially outward through the guide surface.

[0009] Furthermore, the stirring blade can rotate on the first driving frame to change the size of the angle α, and as the stirring blade moves downward and approaches the gas outlet of the gas pipeline, the angle α gradually decreases.

[0010] Its beneficial effect is that by changing the angle of the guide surface through the rotation of the stirring blade, the direction of the flow of sewage and gas pushed by the guide surface can be changed, thereby changing the distance that the sewage and gas move downward and outward. As the stirring blade moves downward, the angle between the guide surface and the vertical direction gradually decreases, so that the guide surface gradually tends to a vertical state, the distance that the sewage and gas move downward decreases, and the distance that moves outward increases, thereby increasing the diffusion area of ​​the bubbles and improving the aeration efficiency.

[0011] Furthermore, the driving mechanism includes a first driving component and a second driving component, the first driving component includes a first driving motor and a first driving column, the first driving column is vertically extended, the first driving motor can drive the first driving column to rotate, the first driving column and the first driving frame are anti-rotationally matched, so that the first driving column can drive the first driving frame to rotate synchronously, the first driving frame is also matched with the vertical guide of the first driving column, and the second driving component can drive the first driving frame to move along the vertical guide of the first driving column.

[0012] Its beneficial effects are: the first drive frame and the first drive column are stopped and guided, the first drive column is used to drive the first drive frame to rotate, so as to drive the stirring blade to rotate, and the second drive frame is used to drive the first drive frame to move along the vertical guide of the first drive column to drive the stirring blade to move up and down, thereby realizing the rotation and lifting movement of the stirring blade, with a simple structure and easy adjustment.

[0013] Furthermore, a vertically extending guide groove is provided on the first driving column, and a guide protrusion is provided on the first driving frame. The guide protrusion extends into the guide groove and moves vertically along the guide groove to achieve vertical guiding cooperation and anti-rotation cooperation between the first driving frame and the first driving column.

[0014] Furthermore, the second driving assembly includes a second driving motor, a second driving column and a second driving frame, the second driving column is vertically extended, the second driving frame is spirally assembled on the second driving column, and the second driving motor can drive the second driving column to rotate, thereby driving the second driving frame to reciprocate and move up and down; in the process of the second driving motor driving the second driving frame to descend, when the second driving frame descends to the lowest position, the second driving motor reverses to drive the second driving frame to rise; in the process of the second driving motor driving the second driving frame to rise, when the second driving frame rises to the highest position, the second driving motor reverses to drive the second driving frame to descend; the second driving frame cooperates with the first driving frame in the vertical direction to enable the second driving frame to drive the first driving frame to move up and down synchronously; the first driving frame also cooperates with the second driving frame in rotation to enable the first driving frame to rotate relative to the second driving frame.

[0015] Furthermore, the driving mechanism further includes a third driving component, which can drive the stirring blade to rotate so as to change the size of the angle α.

[0016] Furthermore, the third driving assembly includes a third driving column, a third driving frame and a transmission connecting rod, the third driving column is vertically extended, the third driving frame is spirally assembled on the third driving column, the second driving motor is transmission-connected to the third driving column, the second driving motor can drive the third driving column to rotate, and then drive the third driving frame to move up and down; the lifting and moving speed of the third driving frame is different from the lifting and moving speed of the second driving frame, so that the third driving frame can be lifted and moved relative to the first driving frame, the third driving frame is connected to the stirring blade through the transmission connecting rod, and when the third driving frame is lifted and moved relative to the first driving frame, it can drive the stirring blade to rotate on the first driving frame to change the size of the angle α.

[0017] The beneficial effect is that the stirring mechanism on the first driving frame is lifted and lowered relative to the third driving frame by utilizing the differential lifting and lowering movement of the third driving frame and the second driving frame, so that the transmission connecting rod drives the stirring blade to rotate on the first driving frame to change the angle α between the guide surface and the vertical direction, so that the pushing effect of the guide surface changes correspondingly with the moving stroke of the stirring blade, thereby flexibly adjusting the flow path of water flow and air flow according to different situations, thereby improving the uniformity and aeration effect of aeration.

[0018] Furthermore, a plurality of aeration units are provided, and in two adjacent aeration units, when the first driving frame of one aeration unit rises, the first driving frame of the other aeration unit descends, and the first driving frame of each aeration unit has the same rotation direction.

[0019] Its beneficial effect is that: multiple aeration units are arranged, and the cyclone mechanisms of adjacent aeration units rotate in the same direction and operate with opposite lifting strokes, so that the water flow and air flow between adjacent aeration units can generate convection under the impetus of two adjacent cyclone mechanisms, thereby forming a vortex, so that the air flow and the water flow are fully in contact, and the aeration efficiency is further improved.

[0020] Furthermore, the gas outlet is arranged with the gas outlet direction facing downward, a nozzle is arranged at the lower end of the gas pipeline, and the gas outlet is arranged on the nozzle.

[0021] The beneficial effect is that the outlet direction of the outlet is set downward, so that the gas can move downward a certain distance with the initial velocity discharged from the outlet, further prolonging the residence time of the gas in the sewage, thereby improving the aeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the cyclone aeration device according to the first embodiment of the present invention;

[0023] Figure 2 for Figure 1 A cross-sectional view of

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the aeration unit of the cyclone aeration device according to the first embodiment of the present invention;

[0025] Figure 4 An exploded view of the matching structure of the cyclone mechanism, the second drive assembly, and the third drive assembly of the cyclone aeration device of the first embodiment of the present invention;

[0026] Figure 5 for Figure 4 A magnified view of the structure in the middle A area;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the gas pipeline of the cyclone aeration device according to the first embodiment of the present invention;

[0028] Figure 7 It is a top view of the matching structure of the first driving column, the first driving frame and the second driving frame of the cyclone aeration device of the first embodiment of the present invention;

[0029] Figure 8 It is a cross-sectional view of the matching structure of the first driving column, the first driving frame and the second driving frame of the cyclone aeration device of the first embodiment of the present invention.

[0030] Wherein: 100, aeration tank; 110, mounting bracket; 120, gas pipeline; 130, spring frame; 140, nozzle; 150, air outlet; 200, first drive frame; 210, first drive column; 220, first drive motor; 230, stirring blade; 240, rotating shaft section; 250, blade section; 260, guide surface; 270, guide groove; 280, guide protrusion; 300, second drive frame; 310, second drive column; 320, second drive motor; 400, third drive frame; 410, third drive column; 420, third drive wheel; 430, transmission belt; 440, transmission connecting rod; 450, first transmission section; 460, second transmission section; 470, turntable. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] The cyclone aeration device provided by the present invention is explained below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0035] Embodiment 1 of the cyclone aeration device of the present invention: Figure 1 As shown, the cyclone aeration device includes an aeration tank 100 and a plurality of aeration units. The plurality of aeration units are evenly spaced and distributed in the aeration tank 100 to perform aeration treatment on the sewage in the aeration tank 100 .

[0036] Reference Figure 2-Figure 8 As shown, the aeration unit mainly includes a mounting bracket 110, a gas pipeline 120, a driving mechanism and a cyclone mechanism. The mounting bracket 110 is fixedly arranged in the aeration tank 100 (the mounting bracket 110 is a conventional arrangement method. In order to make the structure of other parts clear, only part of the structure of the mounting bracket 110 is shown in the figure), and the driving mechanism is arranged on the mounting bracket 110. A nozzle 140 is arranged at the lower end of the gas pipeline 120. The nozzle 140 extends into the sewage in the aeration tank 100. The nozzle 140 is provided with an air outlet 150 for introducing gas into the sewage. The cyclone mechanism is arranged above the nozzle 140. The driving mechanism can drive the cyclone mechanism to rotate. The rotation of the cyclone mechanism can promote the flow of sewage in the aeration tank 100 and change the movement direction of the gas discharged from the air outlet 150 in the sewage, thereby realizing cyclone aeration.

[0037] The driving mechanism includes a first driving assembly, a second driving assembly and a third driving assembly. The first driving assembly includes a first driving motor 220 and a first driving column 210. The second driving assembly includes a second driving motor 320, a second driving column 310 and a second driving frame 300. The third driving column 410 assembly includes a third driving column 410, a third driving frame 400, a third driving wheel 420, a transmission belt 430 and a transmission connecting rod 440. The first driving column 210, the second driving column 310 and the third driving column 410 are all vertically extended. The upper ends of the first driving column 210, the second driving column 310 and the third driving column 410 are all rotatably assembled on the mounting bracket 110. The lower ends of the first driving column 210, the second driving column 310 and the third driving column 410 are all rotatably assembled on the bottom of the aeration tank 100. The third driving wheel 420 is fixedly assembled on the upper end of the third driving column 410.

[0038] The cyclone mechanism includes a first drive frame 200 and a stirring blade 230. The stirring blade 230 is mounted on the first drive frame 200. The first drive frame 200 is vertically guided and mounted on the first drive column 210, so that the cyclone mechanism can be vertically lifted and lowered along the first drive column 210. The first drive frame 200 is also locked with the first drive column 210, so that the first drive column 210 can drive the cyclone mechanism to rotate synchronously. Specifically, a vertically extending guide groove 270 is provided on the first drive column 210, and a guide protrusion 280 is correspondingly provided on the first drive frame 200. The guide protrusion 280 extends into the guide groove 270 and can be vertically guided and moved along the guide groove 270, so as to realize the vertical guiding cooperation and locking cooperation between the first drive frame 200 and the first drive column 210.

[0039] The first drive motor 220 is fixedly arranged on the mounting bracket 110. The first drive motor 220 can drive the first drive column 210 to rotate, so as to drive the first drive frame 200 to rotate, and then drive the stirring blade 230 to rotate. The stirring blade 230 has a guide surface 260 that is inclined downward, and the angle α between the guide surface 260 and the vertical direction is an acute angle. The first drive frame 200 drives the stirring blade 230 to rotate, so that the guide surface 260 on the stirring blade 230 generates an oblique downward thrust on the sewage in the aeration tank 100, so as to push the sewage in the aeration tank 100 downward and outward, so that the gas introduced into the gas outlet 150 will first follow the sewage downward and outward for a distance after entering the sewage before floating up, thereby extending the residence time of the gas in the sewage, increasing the diffusion surface of the gas, and making the gas and the sewage fully contact and exchange, effectively improving the aeration efficiency.

[0040] At the same time, as the guide surface 260 pushes the sewage to flow downward and outward, the sewage flows around the cyclone mechanism and gradually forms a vortex. The vortex can increase the contact area between the sewage and the air, and when the gas discharged from the outlet 150 floats up, it generates a centripetal suction force on it, so that the gas discharged from the outlet 150 moves outward for a distance and then moves toward the center of the vortex again, that is, moves inward along the radial direction of the cyclone mechanism, effectively extending the flow path of the gas discharged from the outlet 150 in the sewage, and further improving the aeration efficiency.

[0041] Further, the second drive motor 320 is fixedly arranged on the mounting bracket 110, and the second drive motor 320 can drive the second drive column 310 to rotate. One end of the second drive frame 300 is screwed with the second drive column 310, so that the second drive column 310 can drive the second drive frame 300 to move back and forth when rotating. In the process of the second drive motor 320 driving the second drive frame 300 to descend, when the second drive frame 300 descends to the lowest position, the second drive motor 320 reverses to drive the second drive frame 300 to rise; in the process of the second drive motor 320 driving the second drive frame 300 to rise, when the second drive frame 300 rises to the highest position, the second drive motor 320 reverses to drive the second drive frame 300 to descend.

[0042] The other end of the second drive frame 300 is vertically guided and assembled on the first drive column 210, and the first drive frame 200 and the second drive frame 300 are rotationally matched and stoppered in the vertical direction, so that the second drive frame 300 can drive the first drive frame 200 to move synchronously up and down along the first drive column 210, and the first drive column 210 can simultaneously drive the first drive frame 200 to rotate relative to the second drive frame 300.

[0043] The second driving motor 320 is connected to the third driving wheel 420 through the transmission belt 430 to drive the third driving wheel 420 to rotate, thereby driving the third driving column 410 to rotate on the mounting bracket 110. One end of the third driving frame 400 is screwed with the third driving column 410, so that the third driving column 410 can drive the third driving frame 400 to move up and down when rotating. The other end of the third driving frame 400 is vertically guided and assembled on the first driving column 210, and is connected to the stirring blade 230 through the transmission connecting rod 440.

[0044] Among them, the helix angle of the second driving column 310 is different from the helix angle of the third driving column 410, so that when the second driving motor 320 drives the second driving column 310 and the third driving column 410 to rotate synchronously, the second driving frame 300 and the third driving frame 400 can be lifted and moved at different speeds, thereby making the third driving frame 400 and the first driving frame 200 lift and move at different speeds.

[0045] The stirring blade 230 includes a rotating shaft section 240 and a blade section 250, a guide surface 260 is arranged on the blade section 250, and the rotating shaft section 240 is rotatably matched with the first driving frame 200, so that the stirring blade 230 can rotate on the first driving frame 200, thereby changing the size of the angle α between the guide surface 260 and the vertical direction. The transmission connecting rod 440 specifically includes a first transmission section 450 and a second transmission section 460, the first transmission section 450 is hinged to the rotating shaft section 240 of the stirring blade 230, and the hinge axis of the first transmission section 450 and the rotating shaft section 240 is perpendicular to the axis of the rotating shaft section 240, so that the first transmission section 450 can drive the rotating shaft section 240 to rotate when swinging, thereby driving the stirring blade 230 to rotate as a whole. The lower end of the third drive frame 400 is rotatably equipped with a turntable 470, and the turntable 470 can rotate relative to the third drive frame 400. One end of the second transmission section 460 is hinged to the turntable 470 so that the first drive frame 200 can rotate relative to the third drive frame 400. The other end of the second transmission section 460 is ball-jointed to the first transmission section 450.

[0046] When the third drive frame 400 and the first drive frame 200 move up and down at different speeds, the distance between the third drive frame 400 and the first drive frame 200 changes, so as to drive the first transmission section 450 and the second transmission section 460 of the transmission link 440 to swing, and then drive the rotating shaft section 240 to rotate, thereby changing the angle α between the guide surface 260 and the vertical direction. Specifically, as the first drive frame 200 and the third drive frame 400 move downward, the stirring blade 230 gradually approaches the bottom of the aeration tank 100, and the transmission link 440 drives the stirring blade 230 to rotate on the first drive frame 200, so that the angle α between the guide surface 260 and the vertical direction gradually decreases.

[0047] As the stirring blade 230 descends, the angle α between the guide surface 260 and the vertical direction gradually decreases, and the thrust generated by the stirring blade 230 decreases in the vertical direction, thereby preventing the sewage and the airflow from accelerating upward under the reverse thrust at the bottom of the aeration tank 100, and prolonging the residence time of the airflow in the sewage to ensure the aeration effect. At the same time, the thrust generated by the stirring blade 230 increases in the horizontal direction, so that the sewage and the airflow move outward a greater distance, increasing the diffusion area of ​​the airflow, thereby further improving the aeration efficiency and aeration uniformity.

[0048] In addition, in the present embodiment, the cyclone mechanisms of the multiple aeration units of the aeration tank 100 rotate in the same direction, so that the sewage between the adjacent aeration units forms a vortex, which can effectively gather the foam generated during the aeration process to prevent the foam from isolating the sewage from the air, so as to ensure the aeration effect. For two adjacent aeration units, when the cyclone mechanism of one aeration unit is in the ascending stroke, the cyclone mechanism of the other aeration unit is in the descending stroke, that is, when one aeration unit pushes the water flow to move obliquely downward, the water flow and air flow pushed by the other aeration unit move upward under the reverse thrust of the bottom of the aeration tank 100, thereby causing the water flow and air flow pushed by the two adjacent aeration units to produce convection, thereby further improving the aeration effect.

[0049] Furthermore, a spring frame 130 is sleeved on the outer side of the first driving column 210, the upper end of the spring frame 130 is vertically guided and assembled on the first driving column 210, and the lower end is fixedly connected to the nozzle 140 at the lower end of the gas pipeline 120. The part of the gas pipeline 120 located below the cyclone mechanism is fixedly mounted on the spring frame 130, and the gas pipeline 120 extends spirally along the extension direction of the spring frame 130, so that the gas pipeline 120 is spirally arranged around the first driving column 210. The gas pipeline 120 supported on the spring frame 130 is also provided with an outlet 150 for introducing gas into the sewage, which can effectively improve the ventilation efficiency and the uniformity of the introduced gas.

[0050] When the first driving frame 200 moves downward, it can compress the spring frame 130 downward, thereby driving the gas pipeline 120 on the spring frame 130 to move downward. When the first driving frame 200 moves upward, the spring frame 130 can drive the gas pipeline 120 to automatically move upward and reset, so that the gas pipeline 120 with the gas outlet 150 is always located below the cyclone mechanism, ensuring the cyclone mechanism's driving effect on the gas entering the gas pipeline 120, thereby ensuring the aeration effect. The nozzle 140 at the lower end of the gas pipeline 120 is fixedly set at the bottom of the aeration tank 100, and the first driving column 210 is rotatably matched with the bottom of the aeration tank 100 through the nozzle 140.

[0051] Refer to the following Figure 1-Figure 8 As shown, the cyclone aeration device of the present application is further explained in combination with a specific usage process.

[0052] In the initial state, a plurality of aeration units are evenly arranged in the aeration tank 100, and the cyclone mechanisms of the aeration units are all located at the highest position. Sewage is introduced into the aeration tank 100 so that the sewage can submerge the gas outlet 150 of the gas transmission pipeline 120 and the cyclone mechanism.

[0053] In the first step, gas is introduced into the sewage through the gas pipeline 120 for aeration, and the first driving motors 220 of all aeration units are started to drive the cyclone mechanism to rotate, thereby pushing the sewage and gas to move obliquely downward.

[0054] In the second step, the second drive motors 320 of some aeration units are started, so that the second drive motor 320 of one of the two adjacent aeration units is operated first, driving the swirl mechanism to descend. As the swirl structure descends, the angle α between the guide surface 260 of the stirring blade 230 and the vertical direction gradually decreases to change the thrust direction generated by the guide surface 260.

[0055] In the third step, when the cyclone mechanism that descends first reaches the lowest position, the second drive motor 320 reverses to drive the cyclone mechanism that descends first to rise again, and at the same time, the second drive motors 320 of the remaining aeration units are started to drive the cyclone mechanisms of the remaining aeration units to descend, so that when the cyclone mechanism of one of the two adjacent aeration units rises, the cyclone mechanism of the other aeration unit descends, thereby forming vortices and convection between the adjacent aeration units to improve the aeration effect.

[0056] In the above process, the gas pipeline 120 continuously introduces gas into the sewage in the aeration tank 100 through the gas outlet 150 to achieve aeration of the sewage, and the cyclone mechanism continuously rotates and moves up and down reciprocatingly, generating an oblique downward thrust to push the sewage in the aeration tank 100 and the gas introduced into the gas pipeline 120 to flow, so that the gas introduced into the gas pipeline 120 first descends and then floats, first diffuses outward, and then is attracted inward by the vortex formed by the cyclone mechanism, effectively extending the movement path and residence time of the gas in the sewage, thereby effectively improving the aeration efficiency.

[0057] Of course, the cyclone aeration device of the present invention is not limited to the above-mentioned embodiments. The following provides several other embodiments that are different from the cyclone aeration device in the above-mentioned embodiment.

[0058] In other embodiments of the cyclone aeration device of the present invention, different from the above embodiments, the second drive assembly can be arranged in other structures, for example, a lifting seat can be arranged, the first drive frame is rotatably mounted on the lifting seat, the lifting seat is used to drive the first drive frame to move up and down synchronously, and the first drive frame rotates on the lifting seat to drive the stirring blade to rotate. The lifting seat can be driven by a piston rod, a screw or a gear to achieve lifting and moving.

[0059] In other embodiments of the cyclone aeration device of the present invention, different from the above embodiments, the third drive assembly may also be arranged in other structures, for example, a vertically extending rack may be arranged to mesh with the rotating shaft section of the stirring blade, and when the third drive assembly moves relative to the first drive frame, the rack drives the stirring blade to rotate to change the size of the angle α. In the initial state, the size of α may be a value such as 45° or 60°.

[0060] In other embodiments of the cyclone aeration device of the present invention, different from the above embodiments, the third drive column and the second drive column can be set with the same spiral pitch angle, and by changing the transmission ratio of the second drive motor and the third drive column, the second drive column and the third drive column can rotate at different speeds, thereby making the third drive frame and the second drive frame move up and down at different speeds.

[0061] In other embodiments of the cyclone aeration device of the present invention, different from the above embodiments, the third drive assembly may not share the same drive source with the second drive assembly, and may not use a spiral matching structure to achieve lifting, but may use other drive sources and drive structures to achieve driving. For example, the drive source may use a pressure pump, and the drive structure may use a piston rod group. The pressure pump is used to drive the piston rod to move, thereby driving the third drive frame to move up and down. Or the drive source may use a speed regulating motor, and the drive structure may use a transmission gear group and a drive rod. The speed regulating motor uses the transmission gear group to drive the drive rod to move, thereby driving the third drive frame to move up and down. It can ensure that the third drive frame and the first drive frame move up and down at different speeds.

[0062] In other embodiments of the cyclone aeration device of the present invention, different from the above embodiments, the gas pipeline can also adopt other structural settings, for example, the gas pipeline is independently set outside the driving mechanism and the cyclone mechanism, and does not need to move with the cyclone mechanism, and it is only necessary to ensure that the gas outlet of the gas pipeline is located below the cyclone mechanism.

[0063] In other embodiments of the cyclone aeration device of the present invention, different from the above embodiments, the outlet direction of the gas outlet of the gas pipeline can also be in any direction, the gas outlet can be set in the circumference of the nozzle, and a one-way valve or a filter can be set in the gas outlet to prevent impurities in the sewage from entering the delivery pipeline.

[0064] In other embodiments of the cyclone aeration device of the present invention, different from the above embodiments, the cyclone mechanisms in different aeration units can also maintain the same working state, the aeration units in the aeration tank work synchronously, and the cyclone mechanism may not be lifted or lowered.

[0065] The above-mentioned embodiments only express several specific implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed. To make the content concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described, but this cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, as long as there is no contradiction in the combination of these technical features without departing from the concept of the present invention, several variations and improvements can be made, and these should be considered to be within the scope of the present specification. Therefore, the scope of protection of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cyclone aeration device, comprising an aeration tank and an aeration unit, wherein the aeration unit comprises a gas pipeline, a driving mechanism and a cyclone mechanism, wherein the gas outlet of the gas pipeline extends into the sewage in the aeration tank to introduce gas into the sewage, and the driving mechanism can drive the cyclone mechanism to rotate to change the flow direction of the gas in the sewage, characterized in that: The swirl mechanism is arranged above the gas outlet of the gas pipeline, and comprises a first driving frame and a stirring blade, wherein the stirring blade is mounted on the first driving frame, and the driving mechanism can drive the first driving frame to move up and down and rotate, so as to drive the stirring blade to move up and down and rotate synchronously; The stirring blade has a guide surface, and the guide surface forms an angle α with the vertical direction, and α is an acute angle, so that the guide surface is inclined downward, and the stirring blade pushes the sewage in the aeration tank and the gas introduced into the gas outlet downward and radially outward through the guide surface; The stirring blade can rotate on the first driving frame to change the size of the angle α, and as the stirring blade moves downward and approaches the gas outlet of the gas pipeline, the angle α gradually decreases; There are multiple aeration units. In two adjacent aeration units, when the first driving frame of one aeration unit rises, the first driving frame of the other aeration unit falls. The first driving frames of each aeration unit have the same rotation direction.

2. The cyclone aeration device according to claim 1, characterized in that: The driving mechanism includes a first driving component and a second driving component. The first driving component includes a first driving motor and a first driving column. The first driving column is vertically extended. The first driving motor can drive the first driving column to rotate. The first driving column cooperates with the first driving frame to stop rotation, so that the first driving column can drive the first driving frame to rotate synchronously. The first driving frame also cooperates with the vertical guide of the first driving column. The second driving component can drive the first driving frame to move along the vertical guide of the first driving column.

3. The cyclone aeration device according to claim 2, characterized in that: The first driving column is provided with a vertically extending guide groove, and the first driving frame is provided with a guide protrusion, which extends into the guide groove and moves vertically along the guide groove to achieve vertical guiding cooperation and anti-rotation cooperation between the first driving frame and the first driving column.

4. The cyclone aeration device according to claim 3, characterized in that: The second driving assembly includes a second driving motor, a second driving column and a second driving frame, the second driving column is vertically extended, the second driving frame is screwed on the second driving column, and the second driving motor can drive the second driving column to rotate, thereby driving the second driving frame to move reciprocatingly up and down; In the process of the second driving motor driving the second driving frame to descend, when the second driving frame descends to the lowest position, the second driving motor reverses to drive the second driving frame to ascend; In the process of the second driving motor driving the second driving frame to rise, when the second driving frame rises to the highest position, the second driving motor reverses to drive the second driving frame to descend; The second driving frame is matched with the first driving frame in a vertical direction so that the second driving frame can drive the first driving frame to move up and down synchronously; The first driving frame is also rotatably matched with the second driving frame, so that the first driving frame can rotate relative to the second driving frame.

5. The cyclone aeration device according to claim 4, characterized in that: The driving mechanism further comprises a third driving component, which can drive the stirring blade to rotate so as to change the size of the angle α.

6. The cyclone aeration device according to claim 5, characterized in that: The third driving assembly includes a third driving column, a third driving frame and a transmission connecting rod, the third driving column is vertically extended, the third driving frame is screwed on the third driving column, the second driving motor is transmission-connected to the third driving column, and the second driving motor can drive the third driving column to rotate, thereby driving the third driving frame to move up and down; The lifting and moving speed of the third driving frame is different from the lifting and moving speed of the second driving frame, so that the third driving frame can be lifted and moved relative to the first driving frame. The third driving frame is connected to the stirring blade through the transmission connecting rod. When the third driving frame is lifted and moved relative to the first driving frame, it can drive the stirring blade to rotate on the first driving frame to change the size of the angle α.

7. The cyclone aeration device according to claim 1, characterized in that: The gas outlet is arranged in a downward direction, a nozzle is arranged at the lower end of the gas pipeline, and the gas outlet is arranged on the nozzle.

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