An aeration device and method for wastewater treatment

Abstract

This invention discloses an aeration device and method for wastewater treatment, relating to the field of wastewater treatment technology. It aims to solve the technical problem of low wastewater treatment efficiency caused by the single gas discharge route in aeration devices. The device includes a base, a bell-shaped tube, an inlet pipe, a turbine, several air outlet components, an expansion and contraction mechanism A, a mounting frame, several enclosure plate components, and an expansion and contraction mechanism B. This invention uses gas flow as power, requiring no external energy source. The turbine rotates, causing the gas inside the circular cavity to rotate and form a vortex with low pressure at the center and high pressure at the periphery. The several air outlet components can expand and contract relative to the circular cavity, causing gradual changes in the gas outlet pressure. This alters the gas's movement path in the wastewater treatment tank, improving microbial degradation efficiency. Furthermore, as the air inlet of the air outlet component approaches the center of the circular cavity, the outlet of the air guide chamber becomes smaller, supplementing the airflow in the center of the cavity and preventing excessively low airflow pressure, thereby improving wastewater treatment efficiency.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to an aeration device and method for wastewater treatment. Background Technology

[0002] With the acceleration of urbanization and increasingly stringent environmental protection requirements, sewage needs to be treated before being discharged. During the sewage treatment process, pollutants in the sewage need to be decomposed and removed. Aeration devices in sewage treatment are the core equipment of biological treatment processes such as activated sludge process. They are mainly used to oxygenate the sewage and promote the degradation of organic matter by microorganisms.

[0003] With the acceleration of urbanization and increasingly stringent environmental protection requirements, wastewater treatment technology faces demands for higher treatment efficiency, lower energy consumption, and more stable operation. As a core component of biological treatment processes, the performance of aeration devices directly affects the nitrogen and phosphorus removal efficiency, operating costs, and system stability of wastewater treatment. However, traditional aeration technologies suffer from a single gas discharge route within the wastewater tank, limiting gas to microbial degradation of wastewater along a constant path, resulting in low oxygen utilization and consequently low wastewater treatment efficiency. Therefore, we propose an aeration device and method for wastewater treatment. Summary of the Invention

[0004] The purpose of this invention is to provide an aeration device and method for sewage treatment, so as to solve the technical problem of low sewage treatment efficiency caused by the single gas discharge route of the aeration device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an aeration device and method for sewage treatment, comprising a base and several surrounding plate assemblies, wherein a circular cavity is formed at the top of the base, and several sliding holes communicating with the circular cavity are formed at equal intervals in an annular structure at the top of the base, and air outlet components are slidably disposed on the sliding holes, and an expansion and contraction mechanism A for driving the expansion and contraction of the several air outlet components is provided inside the base, a trumpet tube is connected to the top of the circular cavity, a turbine is provided inside the trumpet tube, an input pipe is connected to the top of the trumpet tube, and an installation frame is provided inside the input pipe; The mounting frame includes several flow dividers arranged in a ring with equal spacing. The gap between any two adjacent flow dividers forms a flow divider cavity. Several surrounding plate assemblies are respectively disposed on several of the flow divider cavities. The mounting frame is provided with an expansion and contraction mechanism B for driving the movement of several surrounding plate assemblies, so that the surrounding plate assemblies can rotate relative to the flow divider cavities, causing the surrounding plate assemblies and the corresponding two flow dividers to form an air guide cavity with a large inlet and a small outlet. Among them, the closer the air inlet end of the air outlet assembly is to the center of the circular cavity, the smaller the outlet of the air guide cavity. The input end of the expansion and contraction mechanism A and the output end of the expansion and contraction mechanism B are respectively fixedly connected to both ends of the turbine. This invention uses gas flow as power, requiring no external energy source, to rotate a turbine. This rotation causes the gas inside a circular cavity to form a vortex with low pressure at the center and high pressure at the periphery. Several air outlet components can expand and contract relative to the circular cavity, causing the air outlet pressure to gradually change. This alters the gas's path in the wastewater treatment tank, improving microbial degradation efficiency. Furthermore, as the air inlet of the air outlet component approaches the center of the circular cavity, the outlet of the air guide chamber becomes smaller, supplementing the airflow in the center of the cavity and preventing the airflow pressure in the center from being too low. This further improves wastewater treatment efficiency and solves the technical problem of low wastewater treatment efficiency caused by a single gas discharge path in aeration devices.

[0006] Preferably, the bottom of the circular cavity has a plurality of movable grooves A in an annular, equally spaced structure, and the plurality of movable grooves A are connected by a sliding groove A, and an annular groove is formed on the inner surface of the input pipe.

[0007] Preferably, the radius of the horn tube gradually decreases from bottom to top, and the turbine is adapted to the shape of the horn tube.

[0008] Preferably, the air outlet assembly includes an air outlet pipe, an arc pipe, an air head, and several bends. The several air outlet pipes are slidably disposed on several sliding holes. The arc pipe is connected to the centripetal end of the air outlet pipe, and the radius of the arc pipe gradually decreases. The small end of the arc pipe is fixedly connected to the centripetal end of the air outlet pipe. The air head is rotatably disposed on the eccentric end of the air outlet pipe. The several bends are connected to the air head in an annular, equally spaced structure. An air outlet groove is formed on the surface of each bend. The radius of the bend gradually decreases. The large end of the bend is fixedly connected to the air head.

[0009] Preferably, the expansion and contraction mechanism A includes a rotating shaft A, a collar A, a movable block A, a plurality of expansion and contraction guide rods A, and a slip ring A. The rotating shaft A is rotatably disposed within the sliding groove A, and the top end of the rotating shaft A passes through the circular cavity and is fixedly connected to the bottom end of the turbine. A reciprocating guide groove A is formed on the surface of the rotating shaft A. The collar A is sleeved on the rotating shaft A. The movable block A is rotatably disposed within the collar A and is movably connected to the reciprocating guide groove A. A plurality of rotating grooves A are formed in an annular, equally spaced structure on the outer surface of the collar A. A plurality of expansion and contraction guide rods A are rotatably disposed within the plurality of rotating grooves A. A rotating seat A is rotatably disposed at the end of the expansion and contraction guide rod A away from the rotating groove A. A plurality of rotating seats A are fixedly connected to a plurality of air outlet pipes. The slip ring A is fixedly disposed on the collar A and is slidably connected to the sliding groove A.

[0010] Preferably, the mounting frame further includes a central shaft and a fixing ring arranged in an inner and outer structure. The fixing ring is fixed on the ring groove, the central shaft is located inside the fixing ring, and a plurality of the diverter plates are located in the gap between the central shaft and the fixing ring. The two ends of the diverter plates are fixedly connected to the central shaft and the fixing ring, respectively.

[0011] Preferably, a sliding groove B is provided inside the central shaft, and a plurality of movable grooves B are provided on the outer surface of the central shaft in an annular, equally spaced structure relative to the positions of the plurality of diversion cavities; The inner surface of the fixed ring is provided with a plurality of ball grooves relative to the positions of the plurality of flow dividers. Ball blocks are movably connected to the ball grooves, and connecting rods are fixedly provided on the ball blocks. Both ends of the diverter plate are provided with movable arc grooves.

[0012] Preferably, the enclosure assembly includes enclosure A and enclosure B. Enclosure A is fixed to the connecting rod, and an overlapping groove is formed in enclosure A. Enclosure B is disposed on the overlapping groove, and the end of enclosure B near the connecting rod is rotatably connected to the connecting rod via a rotating rod. Movable columns are fixed on both enclosure A and enclosure B, and the movable columns are movably connected to the corresponding movable arc grooves.

[0013] Preferably, the expansion and contraction mechanism B includes a rotating shaft B, a collar B, a movable block B, a plurality of expansion and contraction guide rods B, and a slip ring B. The rotating shaft B is rotatably disposed within the slide groove B, with its bottom end extending out of the slide groove B and fixedly connected to the top of the turbine. A reciprocating guide groove B is formed on the surface of the rotating shaft B. The collar B is sleeved on the rotating shaft B. The movable block B is rotatably disposed within the collar B and is movably connected to the reciprocating guide groove B. A plurality of rotating grooves B are formed in an annular, equally spaced structure on the outer surface of the collar B. A plurality of expansion and contraction guide rods B are rotatably disposed within the plurality of rotating grooves B. A rotating seat B is rotatably disposed at the end of each expansion and contraction guide rod B away from the rotating groove B. A plurality of rotating seats B are fixedly connected to the bottom ends of a plurality of surrounding plates A. The slip ring B is fixedly disposed on the collar B and slidably connected to the slide groove B.

[0014] The method of using the above-mentioned wastewater treatment aeration device includes the following steps: S1: Place the base in the center of the sewage treatment tank and connect the input pipe to the output end of the gas output mechanism of the aeration device; S2: When the gas enters the circular cavity sequentially from the input pipe and the horn pipe, it can drive the turbine to rotate, causing the gas inside the circular cavity to rotate and form a vortex with low pressure in the center and high pressure on the periphery; S3: The turbine simultaneously drives shafts B and A to rotate, causing several air outlet components to expand and contract relative to the circular cavity. This results in a gradual change in the air outlet pressure, thereby altering the gas's path in the wastewater treatment tank and improving microbial degradation efficiency. The size of the air guide chamber's outlet expands and contracts with the expansion and contraction of the air outlet components. Utilizing the time difference between the gas entering the circular cavity and its rotation and flowing outwards (i.e., some gas has not yet flowed into the periphery), the airflow in the center of the circular cavity is supplemented, preventing the airflow pressure in the center from being too low. Furthermore, the closer the air inlet of the air outlet component is to the center of the circular cavity, the smaller the size of the air guide chamber's outlet, thus enhancing the pressurization effect.

[0015] S4: Microbial degradation; S4.1: The gas enters through the arc pipe, passes through the outlet pipe, the gas head and the bend in sequence, and is ejected from the outlet groove, which drives the gas head to rotate relative to the outlet pipe. The bend in the pipe is designed with an outlet groove so that the airflow can also pass through the sewage at the top of the base to ensure the degradation of microorganisms during sewage treatment. S4.2: When the arc tube is closer to the eccentric side of the circular cavity, the gas ejected from the air outlet can travel a farther distance across the sewage. Eventually, the gas floats up and separates from the sewage. The gas degrades microorganisms in the sewage. When the several air outlet components expand and contract relative to the circular cavity, the position of the arc tube relative to the circular cavity changes. The farther the gas ejected from the air outlet travels in the sewage, the less fixed the movement path of the gas in the sewage. This allows for microbial degradation of sewage at different locations in the sewage treatment tank, thereby improving sewage treatment efficiency.

[0016] The beneficial effects of this invention are: 1. This invention uses gas flow as power, requiring no external energy source, to rotate the turbine. This rotation causes the gas inside the circular cavity to form a vortex with low pressure at the center and high pressure at the periphery. Several air outlet components can expand and contract relative to the circular cavity, causing the air outlet pressure of the components to gradually change. This alters the gas's movement path in the wastewater treatment tank, improving the efficiency of microbial degradation. Furthermore, the closer the air inlet of the air outlet component is to the center of the circular cavity, the smaller the outlet of the air guide chamber becomes, supplementing the airflow in the center of the circular cavity and preventing the airflow pressure in the center from being too low. This further improves wastewater treatment efficiency and solves the technical problem of low wastewater treatment efficiency caused by the single gas discharge route in aeration devices for wastewater treatment.

[0017] 2. The present invention, through the structural design of the gas outlet component, enables the gas head to rotate relative to the gas outlet pipe when the gas is ejected from the gas outlet slot. In addition, the design of the gas outlet slot on the surface of the bend pipe corner allows the airflow to pass through the sewage at the top of the base, so as to ensure the degradation of microorganisms during sewage treatment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional structural diagram of the base, horn tube, and input tube of the present invention; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 This is a schematic diagram showing the split structure of expansion and contraction mechanism A and expansion and contraction mechanism B of the present invention; Figure 6 This is a schematic diagram of the disassembled structure of the expansion and contraction mechanism B of the present invention; Figure 7 This is a schematic diagram of the air outlet assembly of the present invention; Figure 8 This is a schematic diagram of the mounting frame, enclosure assembly, and expansion / contraction mechanism B of the present invention. Figure 9 This is a schematic diagram of the disassembled structure of the mounting frame of the present invention; Figure 10 This is a cross-sectional structural diagram of the enclosure assembly of the present invention; Figure 11 This is a partial structural schematic diagram of the mounting frame and enclosure assembly of the present invention; Figure 12 This is a schematic diagram of one usage state of the present invention.

[0019] Explanation of the labels in the diagram: 1. Base; 2. Horn tube; 3. Inlet pipe; 4. Turbine; 5. Exhaust assembly; 6. Expansion / contraction mechanism A; 7. Mounting frame; 8. Enclosure assembly; 9. Expansion / contraction mechanism B; 11. Circular cavity; 12. Sliding hole; 13. Movable groove A; 14. Sliding groove A; 31. Annular groove; 51. Exhaust pipe; 52. Arc pipe; 53. Air head; 54. Bend angle; 55. Exhaust groove; 61. Rotating shaft A; 62. Reciprocating guide groove A; 63. Collar A; 64. Moving block A; 65. Rotary groove A; 66. Expansion / contraction guide rod A; 67. Rotary seat A; 68. Slip ring A; 71. Central shaft; 72. Retaining ring; 73. Diverter plate; 711. Slide B; 712. Movable Slot B; 721. Ball groove; 722. Ball block; 723. Connecting rod; 731. Movable arc groove; 81. Enclosure A; 82. Stacking groove; 83. Enclosure B; 84. Movable column; 91. Rotating shaft B; 92. Reciprocating guide groove B; 93. Collar B; 94. Moving block B; 95. Rotary groove B; 96. Expansion / contraction guide rod B; 97. Rotary seat B; 98. Slip ring B. Detailed Implementation

[0020] like Figures 1 to 12 As shown, the present invention relates to an aeration device and method for sewage treatment, comprising a base 1, a bell pipe 2, an input pipe 3, a turbine 4, several air outlet components 5, an expansion and contraction mechanism A6, an installation frame 7, several enclosure plate components 8, and an expansion and contraction mechanism B9.

[0021] In an embodiment of the present invention, the base 1 is located at the center of the sewage treatment tank. A circular cavity 11 is provided at the top of the base 1. The top of the base 1 has a ring-shaped structure with equal spacing and a plurality of sliding holes 12 communicating with the circular cavity 11. The bottom of the circular cavity 11 has a ring-shaped structure with equal spacing and a plurality of movable grooves A13. The plurality of movable grooves A13 are connected by sliding grooves A14.

[0022] In an embodiment of the present invention, the horn tube 2 is connected to the top of the circular cavity 11, and the radius of the horn tube 2 gradually decreases from bottom to top. In an embodiment of the present invention, the input pipe 3 is connected to the top of the horn pipe 2, and an annular groove 31 is formed on the inner surface of the input pipe 3. The input pipe 3 of the present invention is connected to the output end of the gas output mechanism. The gas output mechanism of the aeration device for sewage treatment is prior art and will not be described in detail here.

[0023] In an embodiment of the present invention, the turbine 4 is disposed on the horn tube 2, and the turbine 4 is adapted to the shape of the horn tube 2. Through the above arrangement, the present invention enables the turbine 4 to rotate when the gas enters the circular cavity 11 sequentially from the input pipe 3 and the horn tube 2, causing the gas in the circular cavity 11 to rotate, and forming a vortex with low pressure in the center and high pressure on the periphery by the combined action of centrifugal force and Bernoulli effect.

[0024] In an embodiment of the present invention, the air outlet assembly 5 includes an air outlet pipe 51, an arc pipe 52, an air head 53, and a plurality of bends 54. The plurality of air outlet pipes 51 are slidably disposed on a plurality of sliding holes 12. The arc pipe 52 is connected to the centripetal end of the air outlet pipe 51. The radius of the arc pipe 52 is gradually decreasing. The small end of the arc pipe 52 is fixedly connected to the centripetal end of the air outlet pipe 51. The air head 53 is rotatably disposed on the eccentric end of the air outlet pipe 51. The plurality of bends 54 are connected to the air head 53 in an annular and equally spaced structure. The radius of the bends 54 is gradually decreasing. The large end of the bends 54 is fixedly connected to the air head 53. An air outlet groove 55 is opened on the surface of the bends 54. This invention utilizes the structural design of the gas outlet assembly 5. Gas enters through the arc tube 52, passes sequentially through the gas outlet pipe 51, the arc tube 52, the gas head 53, and the bend 54, and is ejected from the gas outlet groove 55. This causes the gas head 53 to rotate relative to the gas outlet pipe 51. Furthermore, the bend 54 is designed with a gas outlet groove 55 on its surface. Figure 12 As shown, this allows airflow to pass through the sewage at the top of the base 1, ensuring the degradation of wastewater by microorganisms during wastewater treatment.

[0025] In an embodiment of the present invention, the expansion and contraction mechanism A6 includes a rotating shaft A61, a collar A63, a movable block A64, a plurality of expansion and contraction guide rods A66, and a slip ring A68. The rotating shaft A61 is rotatably disposed in the slide groove A14, and the top end of the rotating shaft A61 passes through the circular cavity 11 and is fixedly connected to the bottom end of the turbine 4. A reciprocating guide groove A62 is formed on the surface of the rotating shaft A61. The reciprocating guide groove A62 includes two arc guide grooves A and two threaded guide grooves A arranged symmetrically. The two threaded guide grooves A are disposed in the gap between the arc guide grooves A, and the two ends of the arc guide grooves A are respectively connected to the ends of the two threaded guide grooves A. The collar A63 is sleeved on the rotating shaft A61. The movable block A64 is rotatably disposed inside the collar A63. The movable block A64 is movably connected to the reciprocating guide groove A62. The outer surface of the collar A63 has a ring-shaped, equally spaced rotating groove A65. Several expansion and contraction guide rods A66 are rotatably disposed inside the several rotating grooves A65. The end of the expansion and contraction guide rod A66 away from the rotating groove A65 is rotatably provided with a rotating seat A67. Several rotating seats A67 are fixedly connected to several air outlet pipes 51. The slip ring A68 is fixed on the collar A63 and slidably connected to the sliding groove A14. Through the above-described configuration, the present invention causes the turbine 4 to rotate, driving the rotating shaft A61 to rotate, causing the movable block A64 to move back and forth within the reciprocating guide groove A62, causing the slip ring A68 to drive the collar A63 to slide back and forth relative to the sliding groove A14, causing the position of the expansion and contraction guide rod A66 to change, thereby causing the gas outlet pipe 51 to slide back and forth relative to the sliding hole 12, allowing several gas outlet components 5 to expand and contract relative to the circular cavity 11, and changing the position of the arc pipe 52 relative to the circular cavity 11, causing the gas outlet pressure of the gas outlet component 5 to gradually change, thereby changing the movement path of the gas in the sewage treatment tank and improving the microbial degradation efficiency.

[0026] In an embodiment of the present invention, the mounting frame 7 includes a central shaft 71 arranged in an inner and outer structure, a fixing ring 72, and a plurality of diverter plates 73 arranged in an annular and equally spaced structure. The fixing ring 72 is fixed on the annular groove 31, the central shaft 71 is disposed inside the fixing ring 72, and the plurality of diverter plates 73 are disposed in the gap between the central shaft 71 and the fixing ring 72. The two ends of the diverter plate 73 are fixedly connected to the central shaft 71 and the fixing ring 72 respectively, and the gap between any two adjacent diverter plates 73 constitutes a diverter cavity. A sliding groove B711 is provided inside the central shaft 71, and a number of movable grooves B712 are provided on the outer surface of the central shaft 71 in an annular, equally spaced structure relative to the positions of several flow dividers. A plurality of ball grooves 721 are provided on the inner surface of the fixed ring 72 relative to a plurality of flow dividers, and ball blocks 722 are movably connected to the ball grooves 721, and connecting rods 723 are fixedly provided on the ball blocks 722. Both ends of the diverter plate 73 are provided with movable arc grooves 731.

[0027] In an embodiment of the present invention, a plurality of enclosure plate assemblies 8 are respectively disposed on a plurality of diversion cavities. The enclosure plate assembly 8 includes enclosure plate A81 and enclosure plate B83. Enclosure plate A81 is fixedly mounted on connecting rod 723. Enclosure plate A81 has a stacking groove 82. Enclosure plate B83 is disposed on the stacking groove 82. The end of enclosure plate B83 near connecting rod 723 is rotatably connected to connecting rod 723 via a rotating rod. Movable columns 84 are fixedly mounted on both enclosure plate A81 and enclosure plate B83. The movable columns 84 are movably connected to the corresponding movable arc groove 731. It is worth mentioning that the two movable arc grooves 731 located on the same flow divider are arranged relative to the corresponding ball groove 721 of the flow divider, so that the surrounding plate assembly 8 can rotate relative to the flow divider. Through the structural setting of the surrounding plate assembly 8, the surrounding plate assembly 8 further divides the gas passing through the flow divider. The surrounding plate assembly 8 can rotate relative to the ball groove 721 with the connecting rod 723 and the ball block 722. At this time, the movable column 84 moves relative to the movable arc groove 731, so that the surrounding plate A81 and the surrounding plate B83 rotate relative to each other, so that the inclination of the surrounding plate assembly 8 changes. When the surrounding plate assembly 8 rotates relative to the flow divider, the surrounding plate assembly 8 and the corresponding two flow dividers 73 form a gas guide cavity with a large inlet and a small outlet.

[0028] In an embodiment of the present invention, the expansion and contraction mechanism B9 includes a rotating shaft B91, a collar B93, a movable block B94, a plurality of expansion and contraction guide rods B96, and a slip ring B98. The rotating shaft B91 is rotatably disposed within a sliding groove B711, and the bottom end of the rotating shaft B91 extends out of the sliding groove B711 and is fixedly connected to the top end of the turbine 4. A reciprocating guide groove B92 is formed on the surface of the rotating shaft B91. The reciprocating guide groove B92 includes two arc guide grooves B and two threaded guide grooves B arranged symmetrically. The two threaded guide grooves B are disposed within the gap between the arc guide grooves B, and the two ends of the arc guide grooves B are respectively connected to the ends of the two threaded guide grooves B. The collar B93 is fitted onto the rotating shaft B91. The movable block B94 is rotatably disposed within the collar B93 and is movably connected to the reciprocating guide groove B92. The outer surface of the collar B93 has several rotating grooves B95 arranged in an annular, equally spaced structure. Several expansion and contraction guide rods B96 are rotatably disposed within the several rotating grooves B95. The end of the expansion and contraction guide rod B96 away from the rotating groove B95 is rotatably provided with a rotating seat B97. Several rotating seats B97 are fixedly connected to the bottom ends of several surrounding plates A81. The slip ring B98 is fixedly disposed on the collar B93 and is slidably connected to the sliding groove B711. This invention utilizes the structural design of the expansion and contraction mechanism B9. Referring to the principle of the expansion and contraction mechanism A6, the rotation of the turbine 4 drives the rotation of the rotating shaft B91, causing the position of the expansion and contraction guide rod B96 to change. This, in turn, causes the movement of several surrounding plates A81, resulting in a back-and-forth change in the inclination of the surrounding plate assembly 8, and thus a back-and-forth change in the size of the outlet of the air guide cavity. This invention uses gas flow as its power source, requiring no external energy. The turbine 4 simultaneously drives the rotating shafts B91 and A61 to rotate, causing the size of the outlet of the air guide cavity to expand and contract with the expansion and contraction of several air outlet assemblies 5. By utilizing the time difference between the gas entering the circular cavity 11 and rotating outwards (i.e., some gas has not yet flowed into the periphery), the airflow in the middle of the circular cavity 11 is supplemented, preventing the airflow pressure in the middle from being too low. Furthermore, the closer the air inlet end of the air outlet assembly 5 is to the middle of the circular cavity 11, the smaller the size of the outlet of the air guide cavity, thus improving the pressurization effect.

[0029] The method of using the above-mentioned wastewater treatment aeration device includes the following steps: S1: Place the base 1 at the center of the sewage treatment tank and connect the input pipe 3 to the output end of the gas output mechanism of the aeration device; S2: When the gas enters the circular cavity 11 sequentially from the input pipe 3 and the horn pipe 2, it can drive the turbine 4 to rotate, causing the gas in the circular cavity 11 to rotate and form a vortex with low pressure in the center and high pressure on the periphery. S3: Turbine 4 simultaneously drives shafts B91 and A61 to rotate, causing several air outlet components 5 to expand and contract relative to the circular cavity 11. This results in a gradual change in the air outlet pressure of the air outlet components 5, thereby altering the gas's movement path in the wastewater treatment tank and improving the efficiency of microbial degradation. The size of the outlet of the air guide chamber expands and contracts with the expansion and contraction of the several air outlet components 5. By utilizing the time difference between the gas entering the circular cavity 11 and rotating and flowing outwards (i.e., some gas has not yet flowed into the periphery), the airflow in the middle of the circular cavity 11 is supplemented, preventing the airflow pressure in the middle from being too low. Furthermore, the closer the air inlet of the air outlet component 5 is to the middle of the circular cavity 11, the smaller the outlet size of the air guide chamber becomes, thus improving the pressurization effect.

[0030] S4: Microbial degradation; S4.1: The gas enters through the arc pipe 52, passes through the outlet pipe 51, the gas head 53 and the bend 54 in sequence, and is ejected from the outlet groove 55, which drives the gas head 53 to rotate relative to the outlet pipe 51. The bend 54 is designed with an outlet groove 55 on its surface, so that the airflow can also pass through the sewage at the top of the base 1 to ensure the degradation of microorganisms during sewage treatment. S4.2: When the arc tube 52 is closer to the eccentric side of the circular cavity 11, the gas ejected from the air outlet 55 can travel a farther distance across the sewage. Eventually, the gas floats up and separates from the sewage. When the gas is in the sewage, it degrades the microorganisms. As the several air outlet components 5 expand and contract relative to the circular cavity 11, the position of the arc tube 52 relative to the circular cavity 11 changes. The farther the gas ejected from the air outlet 55 travels in the sewage, the less fixed the movement path of the gas in the sewage. This allows for microbial degradation of the sewage in different locations in the sewage treatment tank, thereby improving the sewage treatment efficiency.

[0031] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. An aeration device for wastewater treatment, characterized in that, The system includes a base (1) and several enclosure plate assemblies (8). The base (1) has a circular cavity (11) at its top end. The base (1) has several sliding holes (12) at its top end in an annular, equally spaced structure that communicate with the circular cavity (11). The circular cavity (11) has several movable grooves A (13) at its bottom end in an annular, equally spaced structure. The movable grooves A (13) are connected by sliding grooves A (14). Air outlet components (5) are slidably mounted on the sliding holes (12). The base (1) is provided with an expansion and contraction mechanism A (6) for driving the expansion and contraction of the several air outlet components (5). The top end of the circular cavity (11) is connected to a horn tube (2). The horn tube (2) is provided with a turbine (4). The top end of the horn tube (2) is connected to an input pipe (3). The input pipe (3) is provided with an installation frame (7). The air outlet assembly (5) includes an air outlet pipe (51); The expansion and contraction mechanism A (6) includes a rotating shaft A (61), a collar A (63), a movable block A (64), several expansion and contraction guide rods A (66), and a slip ring A (68). The rotating shaft A (61) is rotatably disposed in the sliding groove A (14). The top end of the rotating shaft A (61) passes through the circular cavity (11) and is fixedly connected to the bottom end of the turbine (4). A reciprocating guide groove A (62) is opened on the surface of the rotating shaft A (61). The collar A (63) is sleeved on the rotating shaft A (61). The movable block A (64) is rotatably disposed in the collar A (63). The moving block A (64) is movably connected to the reciprocating guide groove A (62). The outer surface of the collar A (63) is provided with a plurality of rotating grooves A (65) in an annular and equally spaced structure. A plurality of expansion and contraction guide rods A (66) are respectively rotatably disposed in the plurality of rotating grooves A (65). The end of the expansion and contraction guide rod A (66) away from the rotating groove A (65) is provided with a rotating seat A (67). A plurality of rotating seats A (67) are respectively fixedly connected to a plurality of air outlet pipes (51). The slip ring A (68) is fixedly disposed on the collar A (63) and slidably connected to the slip groove A (14). The mounting frame (7) also includes a central axis (71) arranged in an internal and external structural configuration. The mounting frame (7) includes a central shaft (71) and a plurality of diversion plates (73) arranged in a ring-shaped, equally spaced structure. The gap between any two adjacent diversion plates (73) constitutes a diversion cavity. A plurality of the surrounding plate assemblies (8) are respectively disposed on the plurality of diversion cavities. A sliding groove B (711) is provided in the central shaft (71). The enclosure assembly (8) includes enclosure A (81); The mounting frame (7) is provided with an expansion and contraction mechanism B (9) for driving the movement of several partition plate assemblies (8), so that the partition plate assembly (8) can rotate relative to the flow divider cavity, causing the partition plate assembly (8) and the corresponding two flow dividers (73) to form a guide cavity with a large inlet and a small outlet. Among them, the closer the air inlet of the air outlet assembly (5) is to the center of the circular cavity (11), the smaller the outlet of the air guide cavity; The input end of the expansion and contraction mechanism A (6) and the output end of the expansion and contraction mechanism B (9) are respectively fixedly connected to both ends of the turbine (4); The expansion and contraction mechanism B (9) includes a rotating shaft B (91), a collar B (93), a movable block B (94), several expansion and contraction guide rods B (96), and a slip ring B (98). The rotating shaft B (91) is rotatably disposed within the sliding groove B (711). The bottom end of the rotating shaft B (91) extends out of the sliding groove B (711) and is fixedly connected to the top end of the turbine (4). A reciprocating guide groove B (92) is provided on the surface of the rotating shaft B (91). The collar B (93) is sleeved on the rotating shaft B (91). The movable block B (94) is rotatably disposed within the collar B (93). The moving block B (94) is movably connected to the reciprocating guide groove B (92). The outer surface of the collar B (93) is provided with a plurality of rotating grooves B (95) in an annular and equally spaced structure. A plurality of expansion and contraction guide rods B (96) are respectively rotatably disposed in the plurality of rotating grooves B (95). The end of the expansion and contraction guide rod B (96) away from the rotating groove B (95) is provided with a rotating seat B (97). A plurality of rotating seats B (97) are respectively fixedly connected to the bottom end of a plurality of surrounding plates A (81). The slip ring B (98) is fixedly disposed on the collar B (93) and slidably connected to the slip groove B (711).

2. The aeration device for wastewater treatment according to claim 1, characterized in that, An annular groove (31) is formed on the inner surface of the input pipe (3).

3. The aeration device for wastewater treatment according to claim 2, characterized in that, The radius of the horn tube (2) gradually decreases from bottom to top, and the turbine (4) is adapted to the shape of the horn tube (2).

4. The aeration device for wastewater treatment according to claim 3, characterized in that, The air outlet assembly (5) further includes an arc tube (52), an air head (53), and several bends (54). Several air outlet pipes (51) are slidably disposed on several sliding holes (12). The arc tube (52) is connected to the centripetal end of the air outlet pipe (51). The radius of the arc tube (52) is gradually decreasing. The small end of the arc tube (52) is fixedly connected to the centripetal end of the air outlet pipe (51). The air head (53) is rotatably disposed on the eccentric end of the air outlet pipe (51). Several bends (54) are connected to the air head (53) in an annular, equally spaced structure. An air outlet groove (55) is opened on the surface of the bend (54). The radius of the bend (54) is gradually decreasing. The large end of the bend (54) is fixedly connected to the air head (53).

5. The aeration device for wastewater treatment according to claim 4, characterized in that, The mounting frame (7) also includes a fixing ring (72), which is fixed on the ring groove (31). The central shaft (71) is located inside the fixing ring (72), and a plurality of the diverter plates (73) are located in the gap between the central shaft (71) and the fixing ring (72). The two ends of the diverter plates (73) are fixedly connected to the central shaft (71) and the fixing ring (72) respectively.

6. The aeration device for wastewater treatment according to claim 5, characterized in that, The outer surface of the central shaft (71) is provided with a number of movable grooves B (712) in an annular and equally spaced structure relative to the positions of the several diversion cavities. The inner surface of the fixed ring (72) is provided with a plurality of ball grooves (721) relative to the positions of the plurality of diversion cavities. A ball block (722) is movably connected to the ball groove (721), and a connecting rod (723) is fixedly provided on the ball block (722). Both ends of the diverter plate (73) are provided with movable arc grooves (731).

7. The aeration device for wastewater treatment according to claim 6, characterized in that, The enclosure assembly (8) also includes enclosure B (83). Enclosure A (81) is fixed on the connecting rod (723). Enclosure A (81) has a stacking groove (82) inside. Enclosure B (83) is located on the stacking groove (82). Enclosure B (83) is rotatably connected to the connecting rod (723) at one end near the connecting rod (723) via a rotating rod. Movable columns (84) are fixed on both enclosure A (81) and enclosure B (83). The movable columns (84) are movably connected to the corresponding movable arc groove (731).

8. A method of using an aeration device for wastewater treatment, applicable to the aeration device for wastewater treatment as described in claim 7, characterized in that, Includes the following steps: S1: Place the base (1) in the center of the sewage treatment tank and connect the input pipe (3) to the output end of the gas output mechanism of the aeration device; S2: When the gas enters the circular cavity (11) sequentially from the input pipe (3) and the horn pipe (2), it can drive the turbine (4) to rotate, so that the gas in the circular cavity (11) rotates to form a vortex with low pressure in the center and high pressure on the periphery; S3: The turbine (4) simultaneously drives the rotating shaft B (91) and the rotating shaft A (61) to rotate, causing the several air outlet components (5) to expand and contract relative to the circular cavity (11), resulting in a gradual change in the air outlet pressure of the air outlet components (5), thereby changing the movement path of the gas in the sewage treatment tank and improving the microbial degradation efficiency. The size of the outlet of the air guide chamber expands and contracts with the expansion and contraction of the several air outlet components (5). By utilizing the time difference between the gas entering the circular cavity (11) and rotating and flowing to the outside, i.e., some gas has not yet flowed into the outside, the airflow in the middle of the circular cavity (11) is supplemented to prevent the airflow pressure in the middle from being too low. Moreover, when the air inlet end of the air outlet component (5) is closer to the middle of the circular cavity (11), the size of the outlet of the air guide chamber is smaller, thus improving the pressurization effect. S4: Microbial degradation; S4.1: The gas enters through the arc pipe (52), passes through the outlet pipe (51), the gas head (53) and the bend (54) in sequence, and is ejected from the outlet groove (55), which drives the gas head (53) to rotate relative to the outlet pipe (51). The bend (54) is designed to have an outlet groove (55) on its surface, so that the airflow can also pass through the sewage at the top of the base (1) to ensure the degradation of microorganisms during sewage treatment. S4.2: When the arc tube (52) is closer to the eccentric side of the circular cavity (11), the gas ejected from the gas outlet (55) can travel a farther distance across the sewage. Eventually, the gas floats up and separates from the sewage. When the gas is in the sewage, it degrades the microorganisms. When the gas outlet components (5) expand and contract relative to the circular cavity (11), the position of the arc tube (52) relative to the circular cavity (11) changes. The farther the gas ejected from the gas outlet (55) travels in the sewage, the less fixed the movement path of the gas in the sewage. This allows the gas to degrade the sewage in different locations in the sewage treatment tank, thereby improving the sewage treatment efficiency.

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