Device and method for treating sewage containing suspended impurities based on vortex ring

Abstract

The present invention discloses a vortex ring-based device for treating wastewater containing suspended impurities. The device can generate vortex rings in wastewater containing suspended impurities, causing suspended impurities in stationary wastewater surrounding the vortex rings to be drawn into the vortex rings. Simultaneously, the vortex rings, entraining the impurities, can directionally transport the impurities to a designated area for centralized collection. By alternately closing and opening multiple vortex ring generating holes through a vortex ring cutoff assembly, vortex rings are continuously generated within the wastewater treatment kettle, thereby achieving efficient removal of suspended impurities from the wastewater. The treatment device of the present invention enables uninterrupted treatment of wastewater containing suspended impurities, improving treatment efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and in particular relates to a vortex ring-based sewage treatment device containing suspended impurities. Background Art

[0002] At this stage, a new round of global environmental protection technology revolution and industrial transformation is accelerating, and environmental protection technologies are facing higher development demands in terms of purification depth, efficiency, and cost-effectiveness. Removal of suspended impurities from wastewater is a key step in the water treatment process, and the degree of removal of suspended impurities significantly affects the quality of the treated water.

[0003] Flotation is a common method for treating wastewater containing suspended impurities. It uses highly dispersed microbubbles as carriers, allowing them to adhere to the surface of hydrophobic suspended impurities, promoting their rise to the surface of the wastewater and forming foam. This foam is then scraped off to remove suspended impurities from the wastewater. However, to enhance removal efficiency, flocculants, coagulants, flotation agents, and other chemical additives are often added to the wastewater during the flotation process, which increases treatment costs.

[0004] A vortex ring is a common fluid structure, such as a ring-shaped bubble blown in water. The fluid within the vortex ring rotates from the inside outward around an imaginary axis, forming a closed loop. This rotation effectively reduces friction with the surrounding static fluid. As a result, the vortex ring loses minimal kinetic energy during its axial motion, allowing it to maintain its shape while traveling long distances. Furthermore, due to the high rotational speed of the fluid within the vortex ring, it creates a relatively low-pressure zone relative to the surrounding static fluid.

[0005] The unique properties of vortex rings offer great potential for treating wastewater containing suspended impurities. By injecting compressed gas into the wastewater, a gas vortex ring is generated. The low-pressure zone created by the vortex ring draws suspended impurities from the surrounding wastewater into the vortex ring. The vortex ring, entrained with impurities, can then move along a specific axial direction, transporting the impurities to a designated area for centralized collection. Therefore, vortex ring-based treatment of wastewater containing suspended impurities offers a novel approach to existing water treatment methods and devices. Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] The purpose of the present invention is to provide a vortex ring-based sewage treatment device containing suspended impurities. By forming a continuous vortex ring in the device, the suspended impurities in the sewage can be efficiently removed and collected in a centralized manner, thereby effectively improving the treatment depth and efficiency of the sewage. At the same time, there is no need to add chemical additives to the sewage, effectively reducing the treatment cost of the sewage containing suspended impurities.

[0008] (2) Technical solution

[0009] According to a first aspect of the present invention, the present invention provides a vortex ring-based sewage treatment device containing suspended impurities.

[0010] A vortex ring-based sewage treatment device containing suspended impurities includes a sewage treatment kettle and a pressurizing chamber stacked one above the other. Both the sewage treatment kettle and the pressurizing chamber are cylindrical structures and are mounted inside the sewage storage chamber.

[0011] The top of the sewage treatment kettle includes a top cover, a kettle wall and a bottom plate, and the kettle wall is provided with a water inlet and a water outlet;

[0012] The upper part of the wall of the sewage treatment kettle is provided with a plurality of sewage outlets, and a scraping blade is provided inside the sewage treatment kettle at a position corresponding to the height of the sewage outlet, and the scraping blade is fixed on a transmission shaft that passes through the top cover;

[0013] A plurality of vortex ring generating holes are provided on the bottom plate of the sewage treatment kettle; a vortex ring cutting assembly is provided below the vortex ring generating holes; the vortex ring cutting assembly includes an upper cutting assembly and a lower cutting assembly provided above and below;

[0014] The upper cut-off assembly and the lower cut-off assembly are respectively sleeved on the central shaft through an upper movable sleeve and a lower movable sleeve;

[0015] An alternating drive motor is provided on the bottom plate of the dirt storage chamber, and the alternating drive motor is connected to a driving gear via a driving shaft, and the driving gear engages with an upper driven gear and a lower driven gear provided on the central shaft;

[0016] The upper movable sleeve and the lower movable sleeve are provided with hinges, and the non-center positions of the upper driven gear and the lower driven gear are respectively provided with hinges, which respectively hinge the upper movable sleeve, the upper connecting rod and the upper driven gear, and hinge the lower movable sleeve, the lower connecting rod and the lower driven gear.

[0017] Furthermore, the upper end of the boost chamber is sealedly connected to the bottom edge of the sewage treatment kettle, and the lower end of the boost chamber is sealedly connected to the bottom plate of the sewage storage chamber. The wall of the boost chamber is provided with an air inlet, which is set through the sewage storage chamber wall and is used to introduce high-pressure gas into the boost chamber.

[0018] Furthermore, the vortex ring truncation assembly (including the upper truncation assembly and the lower truncation assembly) is driven by the alternating drive motor to rise or fall, thereby intermittently connecting or disconnecting with the vortex ring hole.

[0019] Furthermore, the central axis is provided with a through hole. The boost chamber is provided with an air inlet hole, and the boost chamber is sleeved on the outside of the vortex ring truncation assembly.

[0020] Furthermore, the alternating drive motor is fixed on an alternating drive motor fixing bracket and is fixedly connected to the driving gear.

[0021] Furthermore, the sewage storage chamber is provided with a sewage storage chamber bottom plate, a centralized sewage discharge hole, and a plurality of through holes. The plurality of through holes are respectively used to install a water inlet pipe, a water outlet pipe, and an air inlet pipe, and are respectively connected to the water inlet hole, the water outlet hole, and the air inlet hole. Furthermore, the sewage storage chamber is sleeved on the outside of the sewage treatment kettle, the vortex ring cutoff assembly, and the boost chamber.

[0022] Furthermore, the top cover is provided with a scraper motor fixing bracket for fixing the scraper motor. The scraper motor is connected to a scraper motor drive shaft that passes through a central through-hole in the top cover. The other end of the scraper motor drive shaft passes through the top cover and is connected to the scraper blade. The scraper motor drives the scraper blade to rotate circumferentially via the scraper motor drive shaft to scrape impurities.

[0023] Furthermore, the inner diameter of the sewage treatment kettle is slightly larger than the outer diameter of the scraping blade and smaller than the outer diameter of the top cover. The top cover contacts the upper edge of the side wall of the sewage treatment kettle to form an approximately closed space, and the scraping blade extends into the upper part of the sewage treatment kettle.

[0024] Furthermore, the plurality of drainage ports are evenly arranged along the circumference of the upper side wall of the sewage treatment kettle. The lower edge of the drainage port is flush with the lower edge of the scraping blade, so that impurities scraped by the scraping blade during circumferential rotation can be discharged from the sewage treatment kettle through the drainage port under the action of centrifugal force.

[0025] Furthermore, the water inlet is located in the upper middle portion of the sewage treatment kettle, and the water outlet is located in the lower portion of the sewage treatment kettle. Preferably, the water inlet and outlet are located on either side of the sewage treatment kettle. Sewage containing suspended impurities enters the sewage treatment kettle through the water inlet and is discharged through the outlet after treatment.

[0026] Furthermore, the vortex ring generating holes are evenly distributed on the bottom plate of the sewage treatment vessel. Compressed gas enters the sewage treatment vessel through the vortex ring generating holes, forming multiple vortex rings parallel to the bottom plate of the sewage treatment vessel. The vortex rings move vertically upward along the axial direction of the sewage treatment vessel. During this vortex ring movement, the gas within the vortex rings rapidly rotates from the inside outward, creating low-pressure areas. This in turn causes suspended impurities around the vortex rings to migrate toward the vortex rings and be entrained by them. The entrained impurities eventually move to contact the scraping blades on the upper portion of the sewage treatment vessel, where they are then scraped into the sewage outlet and discharged from the sewage treatment vessel.

[0027] Furthermore, the upper truncation assembly includes an upper truncation column bracket and an upper truncation column fixed thereon, and the upper truncation column bracket is sleeved on the outside of the upper movable sleeve. The upper truncation column is cylindrical, and its number is less than the number of the vortex ring generating holes. Preferably, the number of the upper truncation columns is 1 / 2 of the number of the vortex ring generating holes, and its diameter is approximately equal to the inner diameter of the vortex ring generating holes. When the upper truncation column moves upward to be embedded in the vortex ring generating hole, the upper truncation column can seal the same number of vortex ring generating holes, thereby closing this part of the vortex ring generating holes.

[0028] Furthermore, the upper truncated column bracket is preferably cross-shaped. The upper truncated columns are arranged on the upper truncated column bracket in correspondence with the positions of the vortex ring generating holes, and the bottom of the upper truncated column is fixedly connected to the upper truncated column bracket to achieve synchronous up and down reciprocating motion of multiple upper truncated columns. The upper movable sleeve is fixedly connected to the upper truncated column bracket coaxially. An upper sleeve hinge is provided on one side of the upper movable sleeve. An upper driven gear is arranged directly below the upper movable sleeve, and a driven gear hinge is provided on a non-center position on one side of the upper driven gear. The upper sleeve hinge and the upper driven gear hinge are located on the same side of the upper movable sleeve and the upper driven gear, and the upper sleeve hinge and the upper driven gear hinge are movably connected through the upper connecting rod. When the upper driven gear rotates, the upper movable sleeve and the upper truncated column bracket and the upper truncated column connected thereto will be driven to reciprocate up and down through the upper connecting rod.

[0029] Furthermore, the lower truncation assembly includes a lower truncation column bracket and a lower truncation column fixed thereto, and the lower truncation column bracket is sleeved outside the lower movable sleeve. The lower truncation column is also cylindrical, with a height greater than that of the upper truncation column and a number less than the number of the vortex ring generating holes. Preferably, the number of the lower truncation columns is 1 / 2 of the number of the vortex ring generating holes, and the diameter is approximately equal to the inner diameter of the vortex ring generating holes. When the lower truncation columns move upward to insert into the vortex ring generating holes, the lower truncation columns can seal the same number of vortex ring generating holes, thereby closing these vortex ring generating holes. Preferably, the lower truncation column bracket is cross-shaped, and the angle between the lower truncation column bracket and the upper truncation column bracket in the horizontal direction is 30-60 degrees, preferably, the angle is 45 degrees. The lower truncation columns are arranged on the lower truncation column bracket corresponding to the positions of the vortex ring generating holes, and the bottom of the lower truncation column is fixedly connected to the lower truncation column bracket to achieve synchronous up and down reciprocating motion of multiple lower truncation columns.

[0030] Furthermore, the lower movable sleeve is fixedly connected to the lower truncated column bracket, and the lower sleeve hinge is provided on one side of the lower movable sleeve. The lower driven gear is arranged directly below the lower movable sleeve, and a lower driven gear hinge is provided on one side of the lower driven gear at a non-center position. The lower sleeve hinge and the lower driven gear hinge are located on the same side of the lower movable sleeve and the lower driven gear, and the lower sleeve hinge and the lower driven gear hinge are movably connected via the lower connecting rod. When the lower driven gear rotates, the lower movable sleeve and the connected lower truncated column bracket and the lower truncated column are driven to perform reciprocating motion up and down through the lower connecting rod. The center of the upper driven gear and the center of the lower driven gear are connected via the driven gear fixed shaft, thereby achieving synchronous rotation of the upper driven gear and the lower driven gear.

[0031] Furthermore, the angle between the upper driven gear hinge and the lower driven gear hinge is 180°. Therefore, during the synchronous rotation of the upper driven gear and the lower driven gear, when the upper driven gear hinge moves upward, it drives the upper truncation column upward, and the vortex ring generating hole corresponding to the upper truncation column closes. At this time, the lower driven gear hinge moves downward, driving the lower truncation column downward, and the vortex ring generating hole corresponding to the lower truncation column opens, and vice versa, thereby achieving the alternating opening of the vortex ring generating hole. During the process of the upper and lower truncation columns alternatingly opening the vortex ring generating holes, at a certain moment, the lower vortex ring generating hole is completely sealed by the upper and lower truncation columns, that is, it is in a fully closed state. The positions of the upper and lower truncation columns at this moment are the initial positions of the vortex ring truncation assembly.

[0032] Furthermore, in the alternating drive assembly, a driving gear transmission shaft is provided at the center of the driving gear. The driving gear transmission shaft is connected to the alternating drive motor, which is fixed to the bottom plate of the dirt storage chamber via the alternating drive motor fixing bracket. The driving gear meshes with the lower driven gear. Driven by the alternating drive motor, the driving gear rotates, driving the upper and lower driven gears to rotate synchronously.

[0033] Furthermore, the inner diameters of the upper movable sleeve and the lower movable sleeve are the same.

[0034] Furthermore, the central axis is arranged vertically, with one end connected to the center of the bottom plate of the sewage treatment kettle and the other end connected to the center of the bottom plate of the sewage storage chamber. The diameter of the central axis is slightly smaller than the inner diameter of the upper movable sleeve and the lower movable sleeve. The central axis passes through the upper movable sleeve and the lower movable sleeve. In the vertical direction, the upper movable sleeve is arranged directly above the lower movable sleeve. The central axis constrains the movement direction of the upper movable sleeve and the lower movable sleeve, forcing the upper movable sleeve and the lower movable sleeve to only move up and down, thereby forcing the upper truncation column and the lower truncation column to only move up and down. A through hole is provided at the lower part of the central axis. The inner diameter of the through hole is slightly larger than the outer diameter of the driven gear fixed shaft. The through hole is used to constrain the rotation position of the driven gear fixed shaft.

[0035] Furthermore, the upper end of the boost chamber sidewall is connected to the bottom plate of the sewage treatment kettle, and the lower end is connected to the bottom plate of the sewage storage chamber. When the vortex ring truncation assembly is in its initial position, i.e., the vortex ring generating holes are completely sealed by the upper and lower truncation columns, forming a closed state. At this point, the boost chamber, the bottom plate of the sewage treatment kettle, the upper and lower truncation columns, and the bottom plate of the sewage storage chamber form a sealed space. The boost chamber sidewall is provided with an air inlet, through which compressed gas enters the sealed space, raising the pressure within the boost chamber to a level greater than the static pressure of the sewage to be treated within the sewage treatment kettle.

[0036] Furthermore, the compressed gas in the boost chamber enters the sewage treatment kettle through the open vortex ring generating holes to form a vortex ring. The alternately opened vortex ring generating holes allow the compressed gas to alternately enter the sewage treatment kettle, continuously generating a vortex ring.

[0037] Furthermore, the upper portion of the sewage storage chamber sidewall is threadedly connected to the top cover, and the lower portion of the sewage storage chamber sidewall is threadedly connected to the sewage storage chamber bottom plate. The sewage storage chamber, the top cover, and the sewage storage chamber bottom plate have the same outer diameter. A gap is provided between the inner wall of the sewage storage chamber and the outer edge of the sewage outlet, allowing impurities discharged through the sewage outlet to flow into the sewage storage chamber for centralized collection. The centralized sewage discharge hole is provided at the lower portion of the sewage storage chamber sidewall to centrally discharge impurities within the sewage storage chamber.

[0038] According to a second aspect of the present invention, the present invention provides a method for treating sewage containing suspended impurities, wherein the sewage treatment device described above is applied.

[0039] (3) Beneficial effects

[0040] 1. This invention leverages the characteristics of vortex rings, such as their ability to form localized low-pressure zones, directional low-resistance motion, and long-range propagation, to provide a vortex-ring-based wastewater treatment device for suspended impurities. This device generates vortex rings within wastewater containing suspended impurities, drawing suspended impurities from stationary wastewater surrounding the vortex rings into the rings. Simultaneously, the vortex rings, entraining the impurities, can directionally transport the impurities to a designated area for centralized collection, thereby achieving efficient removal of suspended impurities from the wastewater.

[0041] 2. In the present invention, the vortex ring cutoff component alternately closes and opens multiple vortex ring generating holes, which can realize the continuous generation of vortex rings in the sewage treatment kettle, and at the same time avoids the vortex ring generating holes from opening at the same time and generating all vortex rings at a certain moment, and prevents the vortex rings from interfering with each other due to the increase in diameter during the migration from the bottom to the upper part of the sewage treatment kettle, resulting in a decrease in the efficiency of suspended impurity treatment.

[0042] 3. The present invention does not require any chemical additives to be added to sewage to pre-treat suspended impurities, and has a low application cost.

[0043] 4. The present invention can achieve uninterrupted and continuous treatment of sewage containing suspended impurities through the water inlet hole, water outlet hole, impurity scraping unit, sewage outlet, sewage storage cavity and centralized sewage discharge hole, thereby further improving the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 1 is an exploded schematic diagram of a vortex ring-based wastewater treatment device containing suspended impurities according to an embodiment of the present invention;

[0045] Figure 2 1 is a front view of a vortex ring-based sewage treatment device containing suspended impurities according to an embodiment of the present invention;

[0046] Figure 3 1 is a side view of a vortex ring-based sewage treatment device containing suspended impurities according to an embodiment of the present invention;

[0047] Figure 4 1 is a top view of a vortex ring-based sewage treatment device containing suspended impurities according to an embodiment of the present invention;

[0048] Figure 5 2 is a schematic structural diagram of a scraping unit in an embodiment of the present invention;

[0049] Figure 6 is a schematic structural diagram of a top cover in an embodiment of the present invention;

[0050] Figure 7 Schematic diagram of the structure of a sewage treatment kettle in an embodiment of the present invention;

[0051] Figure 8 2 is a schematic structural diagram of an upper truncation assembly according to an embodiment of the present invention;

[0052] Figure 9 This is a schematic structural diagram of the lower truncation assembly and the central axis in an embodiment of the present invention;

[0053] Figure 10 is a schematic structural diagram of an alternating drive assembly in an embodiment of the present invention;

[0054] Figure 11 is a schematic structural diagram of the pressurization chamber in an embodiment of the present invention;

[0055] Figure 12 Schematic diagram of the structure of the dirt storage chamber and the dirt storage chamber bottom plate in an embodiment of the present invention;

[0056] Figure 13 2 is a schematic structural diagram of the initial position of the vortex ring truncation assembly in an embodiment of the present invention;

[0057] Figure 14 2 is a schematic structural diagram of the vortex ring generating hole corresponding to the closing of the lower cut-off component in an embodiment of the present invention;

[0058] Figure 15 It is a structural schematic diagram of the vortex ring generating hole corresponding to the closure of the upper cut-off component in an embodiment of the present invention.

[0059] Description of reference numerals in the schematic diagram:

[0060] 1-scraper motor; 2-scraper motor fixing bracket; 3-scraper motor drive shaft; 4-top cover; 5-scraper blade; 6-sewage outlet; 7-water inlet; 8-sewage treatment kettle; 9-vortex ring generating hole; 10-water outlet; 11-upper cut-off assembly; 12-lower cut-off assembly; 13-alternating drive motor; 14-alternating drive motor fixing bracket; 15-driving gear; 16-central shaft; 17-boost chamber; 18-air inlet; 19-sewage storage chamber; 20-centralized sewage discharge hole; 21-sewage storage chamber bottom plate.

[0061] 11-1-Upper truncation column; 11-2-Upper truncation column bracket; 11-3-Upper movable sleeve; 11-4-Upper sleeve hinge; 11-5-Upper connecting rod; 11-6-Upper driven gear hinge; 11-7-Upper driven gear.

[0062] 12-1-lower truncation column; 12-2-lower truncation column bracket; 12-3-lower movable sleeve; 12-4-lower sleeve hinge; 12-5-lower connecting rod; 12-6-lower driven gear hinge; 12-7-lower driven gear; 12-8-driven gear fixing shaft. Implementation Method

[0063] The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0064] Reference Figures 1 to 12 As shown, a vortex ring-based sewage treatment device containing suspended impurities in an embodiment provided by the present invention includes a sewage treatment kettle 8 and a booster chamber 17 stacked up and down. The sewage treatment kettle 8 and the booster chamber 17 are both cylindrical structures and are mounted inside the sewage storage chamber 19.

[0065] The sewage treatment kettle 8 comprises a top cover 4, a bottom plate, and a kettle wall, with a water inlet 7 and a water outlet 10 provided on the kettle wall. Several sewage outlets 6 are provided on the upper portion of the kettle wall. Scraping blades 5 are installed inside the sewage treatment kettle at positions corresponding to the height of the sewage outlets. These scraping blades are fixed to a scraping motor drive shaft 3 that passes through the top cover. Several vortex ring generating holes 9 are provided on the bottom plate of the sewage treatment kettle. A vortex ring cutoff assembly is provided below the vortex ring generating holes. The vortex ring cutoff assembly comprises an upper cutoff assembly 11 and a lower cutoff assembly 12, which are arranged in upper and lower positions. The upper cutoff assembly 11 and the lower cutoff assembly 12 are respectively mounted on the central shaft 16 via an upper movable sleeve 11-3 and a lower movable sleeve 12-3. An alternating drive motor 13 is provided on the bottom plate of the dirt storage chamber, and the alternating drive motor is connected to a driving gear 15 through a drive shaft. The driving gear is engaged with a driven gear (upper driven gear 11-7 and lower driven gear 12-7) provided on the central axis; the upper movable sleeve 11-3 and the lower movable sleeve 12-3 are provided with hinges, and the non-center positions of the upper driven gear 11-7 and the lower driven gear 12-7 are respectively provided with hinges, respectively hinge-connecting the upper movable sleeve 11-3, the upper connecting rod 11-5 and the upper driven gear 11-7, and hinge-connecting the lower movable sleeve 12-3, the lower connecting rod 12-5 and the lower driven gear 12-7.

[0066] The upper end of the boost chamber 17 is sealed to the bottom edge of the sewage treatment kettle 8, and the lower end of the boost chamber 17 is sealed to the sewage storage chamber bottom plate 21. An air inlet 18 is provided in the wall of the boost chamber, which penetrates the sewage storage chamber wall and is used to introduce high-pressure gas into the boost chamber.

[0067] The vortex ring truncation assembly includes an upper truncation assembly 11, a lower truncation assembly 12, an alternating drive assembly, and a central shaft 16. The upper truncation assembly 11 includes an upper truncation column 11-1, an upper truncation column bracket 11-2, an upper movable sleeve 11-3, an upper sleeve hinge 11-4, an upper connecting rod 11-5, an upper driven gear hinge 11-6, and an upper driven gear 11-7. The lower truncation assembly 12 includes a lower truncation column 12-1, a lower truncation column bracket 12-2, a lower movable sleeve 12-3, a lower sleeve hinge 12-4, a lower connecting rod 12-5, a lower driven gear hinge 12-6, a lower driven gear 12-7, and a driven gear fixing shaft 12-8. The alternating drive assembly includes a driving gear 15, an alternating drive motor 13, and an alternating drive motor fixing bracket 14. The central shaft 16 is provided with a through hole. The boost chamber 17 is provided with an air inlet hole 18 , and the boost chamber 17 is sleeved on the outside of the vortex ring truncation assembly.

[0068] One end of the scraper motor drive shaft 3 is connected to the scraper motor 1, and the other end of the scraper motor drive shaft 3 passes through the top cover 4 and is connected to the scraper blade 5. The scraper blade 5 is divided into two parts, the upper part is a circular plate to prevent impurities from overflowing above the scraper blade 5, and the lower part is a four-leaf scraper with an arc to divert the impurities. The scraper motor 1 is coaxially connected to the top cover 4 through the scraper motor fixing bracket 2, so that the position of the scraper motor 1 is fixed, and the scraper motor drive shaft 3 can pass through the top cover 4 from the through hole in the center of the top cover 4. The scraper motor 1 drives the scraper blade 5 to rotate circumferentially through the scraper motor drive shaft 3. The scraper blade 5 diverts the impurities while exerting centrifugal force on the impurities, thereby achieving the scraping of the impurities.

[0069] The inner diameter of the sewage treatment vessel 8 is slightly larger than the outer diameter of the scraping blades 5, but smaller than the outer diameter of the top cover 4. The top cover 4 contacts the upper edge of the sidewall of the sewage treatment vessel 8, forming a nearly enclosed space. The scraping blades 5 extend into the upper portion of the sewage treatment vessel 8. Several (four in the schematic diagram) nearly rectangular drain outlets 6 are uniformly arranged along the circumference of the upper sidewall of the sewage treatment vessel 8. The height of the drain outlets 6 is the same as that of the four-blade scrapers 5, and the bottom edge of the drain outlets 6 is flush with the bottom edge of the four-blade scrapers. This allows impurities diverted by the four-blade scrapers during the rotation of the scraping blades 5 to be discharged from the sewage treatment vessel 8 through the drain outlets 6 due to centrifugal force.

[0070] The sidewalls of the sewage treatment vessel 8 are provided with an inlet 7 and an outlet 10. The inlet 7 is located in the upper middle portion of the vessel wall, while the outlet 10 is located in the lower portion. These inlet and outlet 10, located on either side of the vessel, allow treated sewage to enter the vessel from the upper middle portion and exit from the lower portion through the outlet 10. The bottom plate of the vessel 8 is evenly distributed with a number of vortex ring generating holes 9 (16 in the schematic diagram) arranged in a cross-shaped pattern. Compressed gas enters the vessel through these holes, forming multiple vortex rings parallel to the bottom plate of the vessel, which travel vertically upward along the axis of the vessel. The vortex ring is the core carrier for removing suspended impurities in sewage. During the vertical upward movement of the vortex ring from the bottom of the sewage treatment kettle 8, the gas in the vortex ring generates a low-pressure area relative to the surrounding static sewage due to its rapid rotation from the inside to the outside, thereby prompting the suspended impurities around the vortex ring to move toward the vortex ring and be entrained by the vortex ring. The vortex ring entraining the impurities continues to move vertically upward, and finally moves to the scraping blade 5 on the top of the sewage treatment kettle 8, and is then scraped into the sewage outlet 6 by the scraping blade 5 and discharged from the sewage treatment kettle 8.

[0071] In the upper truncation assembly 11, the upper truncation posts 11-1 are cylindrical and number several (eight in the figure), preferably half the number of vortex ring generating holes 9. The diameter of the upper truncation posts 11-1 is approximately equal to the inner diameter of the vortex ring generating holes 9. When the eight upper truncation posts 11-1 move upward and insert into the eight vortex ring generating holes 9, they seal the eight vortex ring generating holes 9, thereby closing the eight vortex ring generating holes 9. The upper truncation post bracket 11-2 is cross-shaped. The eight upper truncation posts 11-1 are fixed to the upper truncation post bracket 11-2 with reference to the vertical position of the eight vortex ring generating holes 9. The bottom surface of the upper truncation posts 11-1 is flush with the bottom surface of the upper truncation post bracket 11-2, thereby enabling the eight upper truncation posts 11-1 to perform synchronous up and down reciprocating motion driven by the upper truncation post bracket 11-2. The upper movable sleeve 11-3 is coaxially fixedly connected to the upper truncated column support 11-2. The upper movable sleeve 11-3 is hollow and has an upper sleeve hinge 11-4 on one side. An upper driven gear 11-7 is located directly below the upper movable sleeve 11-3, and an upper driven gear hinge 11-6 is located to one side of the upper driven gear 11-7, not at the center. The upper sleeve hinge 11-4 and the upper driven gear hinge 11-6 are located on the same side of the upper movable sleeve 11-3 and the upper driven gear 11-7. The upper sleeve hinge 11-4 and the upper driven gear hinge 11-6 are movably connected via an upper connecting rod 11-5. When the upper driven gear 11-7 rotates, it drives the upper movable sleeve 11-3, its connected upper truncated column support 11-2, and the eight upper truncated columns 11-1, into reciprocating motion up and down via the upper connecting rod 11-5.

[0072] In the lower truncation assembly 12, the lower truncation posts 12-1 are identical to the upper truncation posts 11-1, being cylindrical in shape. The lower truncation posts 12-1 are taller than the upper truncation posts 11-1 and are the same number as the upper truncation posts, also eight, which is half the number of vortex ring generating holes 9. The diameter of the lower truncation posts 12-1 is also approximately equal to the inner diameter of the vortex ring generating holes 9. When the eight lower truncation posts 12-1 move upward to insert into the eight vortex ring generating holes 9 without corresponding upper truncation posts 11-1, the eight lower truncation posts 12-1 can seal these eight vortex ring generating holes 9, thereby closing them. The lower truncated column bracket 12-2 is also cross-shaped, and the angle between the lower truncated column bracket 12-2 and the upper truncated column bracket 11-2 in the horizontal direction is 45 degrees. Therefore, when observed from the vertical direction, the upper truncated column bracket 11-2 and the lower truncated column bracket 12-2 are in a cross shape, which just corresponds to the cross-shaped setting of the vortex ring generating hole 9. The eight lower truncated columns 12-1 are fixed on the lower truncated column bracket 12-2 with reference to the vertical positions of the eight corresponding vortex ring generating holes 9. The bottom surface of the lower truncated column 12-1 is flush with the bottom surface of the lower truncated column bracket 12-2, thereby achieving the eight lower truncated columns 12-1 being driven by the lower truncated column bracket 12-2 to perform synchronous up and down reciprocating motion. The lower movable sleeve 12-3 is coaxially fixedly connected to the lower truncated column support 12-2. The lower movable sleeve 12-3 is also hollow and has a lower sleeve hinge 12-4 on one side. A lower driven gear 12-7 is located directly below the lower movable sleeve 12-3, and a lower driven gear hinge 12-6 is located to one side of the lower driven gear 12-7, not at the center. The lower sleeve hinge 12-4 and the lower driven gear hinge 12-6 are located on the same side of the lower movable sleeve 12-3 and the lower driven gear 12-7. The lower sleeve hinge 12-4 and the lower driven gear hinge 12-6 are movably connected via a lower connecting rod 12-5. When the lower driven gear 12-7 rotates, it drives the lower movable sleeve 12-3, its connected lower truncated column support 12-2, and the eight lower truncated columns 12-1, into reciprocating motion via the lower connecting rod 12-5. The center of the upper driven gear 11-7 and the center of the lower driven gear 12-7 are connected through the driven gear fixing shaft 12-8, so that the upper driven gear 11-7 and the lower driven gear 12-7 can rotate synchronously.

[0073] The sum of the number of the upper truncated columns and the number of the lower truncated columns is the same as the number of the vortex ring generating holes.

[0074] The included angle between the upper driven gear hinge 11-6 and the lower driven gear 12-6 is 180 degrees. Therefore, during the synchronous rotation of the upper driven gear 11-7 and the lower driven gear 12-7, the following three situations may occur:

[0075] (1) If Figure 13 As shown, when the upper driven gear hinge 11-6 moves upward, it drives the eight upper truncated columns 11-1 upward, closing the eight vortex ring generating holes 9 corresponding to the eight upper truncated columns 11-1. At the same time, the lower driven gear hinge 12-6 moves downward, driving the eight lower truncated columns 12-1 downward, opening the eight vortex ring generating holes 9 corresponding to the eight lower truncated columns 12-1. At this time, the compressed gas will enter the sewage treatment kettle 8 through the eight open vortex ring generating holes 9 corresponding to the eight lower truncated columns 12-1 and generate a vortex ring.

[0076] (2) If Figure 14 As shown, when the upper driven gear hinge 11-6 moves downward, it drives the eight upper truncated columns 11-1 downward, causing the eight vortex ring generating holes 9 corresponding to the eight upper truncated columns 11-1 to open. At the same time, the lower driven gear hinge 12-6 moves upward, driving the eight lower truncated columns 12-1 upward, and the eight vortex ring generating holes 9 corresponding to the eight lower truncated columns 12-1 close. At this time, the compressed gas will enter the sewage treatment kettle 8 through the eight open vortex ring generating holes 9 corresponding to the eight upper truncated columns 11-1 and generate a vortex ring.

[0077] (3) If Figure 15 As shown, in the process of the upper truncation column 11-1 and the lower truncation column 12-1 alternately opening the vortex ring generating hole 9, at a certain moment the lower vortex ring generating hole 9 is completely sealed by the upper truncation column 11-1 and the lower truncation column 12-1, that is, it is in a fully closed state. The positions of the upper truncation column 11-1 and the lower truncation column 12-1 at this moment are the initial positions of the vortex ring truncation assembly.

[0078] The above two situations (1) and (2) realize the alternating opening of 16 vortex ring generating holes 9, and only 8 vortex ring generating holes 9 are opened each time, so as to realize the continuous generation of vortex rings in the sewage treatment kettle 8, and at the same time avoid the vortex ring generating holes 9 opening at the same time and generating all vortex rings at a certain moment, and prevent the vortex rings from interfering with each other due to the increase in diameter during the migration from the bottom to the upper part of the sewage treatment kettle 8, thereby reducing the efficiency of suspended impurities treatment.

[0079] In the alternating drive assembly, a driving gear transmission shaft is provided at the center of the driving gear 15. The driving gear transmission shaft is connected to the alternating drive motor 13. The alternating drive motor 13 is fixed to the bottom plate 21 of the dirt storage chamber via the alternating drive motor fixing bracket 14. The driving gear 15 meshes with the upper driven gear 11-7 and the lower driven gear 12-7. Driven by the alternating drive motor 13, the driving gear 15 rotates, thereby driving the upper driven gear 11-7 and the lower driven gear 12-7 to rotate synchronously, providing power for the alternating reciprocating motion of the upper and lower cutting assemblies 11 and 12.

[0080] The central shaft 16 is arranged vertically (perpendicularly), with one end connected to the center of the bottom plate of the sewage treatment kettle 8 and the other end connected to the center of the bottom plate of the sewage storage chamber. The upper movable sleeve 11-3 and the lower movable sleeve 12-3 have the same inner diameter, while the diameter of the central shaft 16 is slightly smaller than the inner diameters of the upper movable sleeve 11-3 and the lower movable sleeve 12-3. The central shaft 16 penetrates the upper movable sleeve 11-3 and the lower movable sleeve 12-3. In the vertical direction, the upper movable sleeve 11-3 is arranged directly above the lower movable sleeve 12-3. The function of the central shaft 16 is to constrain the movement direction of the upper movable sleeve 11-3 and the lower movable sleeve 12-3, forcing them to perform only vertical reciprocating up and down motion, thereby forcing the upper and lower truncation columns 11-1 and 12-1 to perform only vertical reciprocating up and down motion. A through hole is provided at the lower portion of the middle shaft 16 , the inner diameter of the through hole being slightly larger than the outer diameter of the driven gear fixing shaft 12 - 8 , and the through hole is used to constrain the rotation position of the driven gear fixing shaft 12 - 8 .

[0081] The upper end of the side wall of the boost chamber 17 is connected to the bottom plate of the sewage treatment kettle 8, and the lower end is connected to the bottom plate 21 of the sewage storage chamber. When the vortex ring truncation assembly is in the initial position, that is, all 16 vortex ring generating holes 9 are sealed by the upper truncation column 11-1 and the lower truncation column 12-1, and are in a closed state. At this time, the boost chamber 17, the bottom plate of the sewage treatment kettle 8, the upper truncation column 11-1, the lower truncation column 12-1, and the sewage storage chamber bottom plate 21 form a closed space. The side wall of the boost chamber 17 is provided with an air inlet 18, through which compressed gas enters the closed space, raising the pressure in the boost chamber 17 to a level greater than the static pressure of the sewage to be treated in the sewage treatment kettle 8. This allows the compressed gas in the boost chamber 17 to have sufficient pressure to enter the sewage treatment kettle 8 during the alternating opening of the vortex ring generating holes 9 to form a continuous vortex ring.

[0082] The upper sidewall of the sewage storage chamber 19 is threadedly connected to the top cover 4, while the lower sidewall is threadedly connected to the sewage storage chamber floor 21. The sewage storage chamber 19, the top cover 4, and the sewage storage chamber floor 21 have the same outer diameter. A gap exists between the inner wall of the sewage storage chamber 19 and the outer edges of the four sewage outlets 6. Impurities discharged through the four sewage outlets 6 flow into the sewage storage chamber 19 for centralized collection. A centralized drainage hole 20 is provided at the lower sidewall of the sewage storage chamber 19 to centrally discharge impurities within the sewage storage chamber.

[0083] The working process of the vortex ring-based sewage treatment device containing suspended impurities of the present invention is as follows:

[0084] (1) Adjust the vortex ring cutoff assembly to the initial position (all 16 vortex ring generating holes 9 are sealed), keep the water outlet 10 closed, and introduce the sewage containing suspended impurities to be treated into the sewage treatment kettle 8 through the water inlet 7 until the sewage liquid level is flush with the lower edge of the four sewage outlets 6, and stop introducing the sewage to be treated;

[0085] (2) Compressed gas is introduced into the boosting chamber 17 through the air inlet 18 to a specified pressure. The specified pressure must be greater than the static pressure of the sewage to be treated, and the pressure in the boosting chamber 17 is always kept constant;

[0086] (3) Start the alternating drive motor 13 to rotate the driving gear 15, driving the upper cut-off assembly 11 and the lower cut-off assembly 12 to start reciprocating motion up and down, alternately opening the vortex ring generating holes 9, allowing the compressed gas to enter the sewage treatment tank 8 to form a vortex ring. The vortex ring continuously absorbs and entrains suspended impurities in the sewage during its upward movement from the bottom of the sewage treatment tank 8;

[0087] (4) Start the scraping motor 1 to rotate the scraping blade 5, scraping the suspended impurities that have moved to the liquid surface out of the four sewage outlets 6 and into the sewage storage chamber 19;

[0088] (5) Open the outlet hole 10 and adjust the flow rate of the water inlet hole 7 and the outlet hole 10 to ensure a continuous sewage treatment process;

[0089] (6) Open the centralized drain hole 20 to discharge the impurities accumulated in the sewage storage chamber 19 out of the device.

Claims

1. A vortex ring-based sewage treatment device containing suspended impurities, characterized in that: It includes a sewage treatment kettle and a booster chamber stacked up and down, both of which are cylindrical structures and are sheathed inside the sewage storage chamber; The sewage treatment kettle comprises a top cover, a kettle wall and a bottom plate, and the kettle wall is provided with a water inlet and a water outlet; The upper part of the wall of the sewage treatment kettle is provided with a plurality of sewage outlets, and a scraping blade is provided inside the sewage treatment kettle at a position corresponding to the height of the sewage outlet, and the scraping blade is fixed on a transmission shaft that passes through the top cover; The bottom plate of the sewage treatment kettle is provided with a plurality of vortex ring generating holes; a vortex ring truncation assembly is provided below the vortex ring generating holes; the vortex ring truncation assembly includes an upper truncation assembly and a lower truncation assembly arranged above and below; The upper and lower cut-off assemblies are respectively mounted on the central shaft via an upper movable sleeve and a lower movable sleeve; the central shaft is arranged on the axis of the dirt storage chamber; the upper and lower cut-off assemblies are driven by alternating drive motors to rise or fall, thereby intermittently connecting or disconnecting with the vortex ring generating hole; An alternating drive motor is provided on the bottom plate of the dirt storage chamber, and the alternating drive motor is connected to a driving gear via a driving shaft, and the driving gear engages with an upper driven gear and a lower driven gear provided on the central shaft; The upper movable sleeve and the lower movable sleeve are provided with hinges, and the non-center positions of the upper driven gear and the lower driven gear are respectively provided with hinges, which respectively hinge the upper movable sleeve, the upper connecting rod and the upper driven gear, and hinge the lower movable sleeve, the lower connecting rod and the lower driven gear.

2. The vortex ring-based sewage treatment device containing suspended impurities according to claim 1 is characterized in that: The upper end of the boosting chamber is sealed and connected to the lower edge of the sewage treatment kettle, and the lower end of the boosting chamber is sealed and connected to the bottom plate of the sewage storage chamber.

3. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 1 is characterized in that: An air inlet is provided on the cylinder wall of the boosting chamber, and the air inlet is set through the wall of the dirt storage chamber, and is used to introduce high-pressure gas into the boosting chamber.

4. The vortex ring-based sewage treatment device containing suspended impurities according to claim 1 is characterized in that: The boost chamber is sleeved on the outside of the vortex ring truncation component.

5. The vortex ring-based sewage treatment device containing suspended impurities according to claim 1 is characterized in that: The top cover is provided with a scraping motor fixing bracket, which is used to fix the scraping motor. The scraping motor is connected to the scraping motor transmission shaft that passes through the central through hole of the top cover. The other end of the scraping motor transmission shaft passes through the top cover and is connected to the scraping blade.

6. The vortex ring-based sewage treatment device containing suspended impurities according to claim 1 is characterized in that: The inner diameter of the sewage treatment kettle is slightly larger than the outer diameter of the scraping blade and smaller than the outer diameter of the top cover. The top cover contacts the upper edge of the side wall of the sewage treatment kettle to form a nearly closed space, and the scraping blade extends into the upper part of the sewage treatment kettle.

7. The vortex ring-based sewage treatment device containing suspended impurities according to claim 1 is characterized in that: The plurality of sewage outlets are evenly arranged along the circumferential direction on the upper part of the side wall of the sewage treatment kettle; the lower edge of the sewage outlet is flush with the lower edge of the scraping blade, and the impurities scraped out by the scraping blade during the circumferential rotation are discharged from the sewage treatment kettle through the sewage outlet under the action of centrifugal force.

8. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 1, characterized in that: The water inlet is arranged at the upper middle part of the sewage treatment kettle, the water outlet is arranged at the lower part of the sewage treatment kettle, and the water inlet and outlet are respectively arranged on both sides of the sewage treatment kettle.

9. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 1, characterized in that: The vortex ring generating holes are evenly arranged on the bottom plate of the sewage treatment kettle.

10. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 1, characterized in that: The upper truncation assembly includes an upper truncation column bracket and an upper truncation column fixed thereon. The upper truncation column bracket is sleeved on the outside of the upper movable sleeve. The upper truncation columns are cylindrical and their number is less than the number of vortex ring generating holes.

11. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 1, characterized in that: An upper sleeve hinge is provided on one side of the upper movable sleeve, an upper driven gear is provided directly below the upper movable sleeve, and a driven gear hinge is provided at a non-center position on one side of the upper driven gear; the upper sleeve hinge and the upper driven gear hinge are located on the same side of the upper movable sleeve and the upper driven gear, and the upper sleeve hinge and the upper driven gear hinge are movably connected through the upper connecting rod.

12. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 11, characterized in that: The lower truncation component includes a lower truncation column bracket and a lower truncation column fixed thereon, and the lower truncation column bracket is sleeved outside the lower movable sleeve.

13. The vortex ring-based sewage treatment device containing suspended impurities according to claim 12, characterized in that: The lower movable sleeve is fixedly connected to the lower truncated column bracket, and a lower sleeve hinge is provided on one side of the lower movable sleeve; a lower driven gear is provided directly below the lower movable sleeve, and a lower driven gear hinge is provided at a non-center position on one side of the lower driven gear. The lower sleeve hinge and the lower driven gear hinge are located on the same side of the lower movable sleeve and the lower driven gear, and the lower sleeve hinge and the lower driven gear hinge are movably connected through the lower connecting rod.

14. The vortex ring-based sewage treatment device containing suspended impurities according to claim 12, characterized in that: The sum of the number of upper truncated columns and the number of lower truncated columns is the number of vortex ring generating holes.

15. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 13, characterized in that: The included angle between the upper driven gear hinge and the lower driven gear hinge is 180°.

16. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 1, characterized in that: The driving gear of the alternating driving electrode is engaged with the upper driven gear and the lower driven gear. The driving gear rotates under the drive of the alternating driving motor, driving the upper driven gear and the lower driven gear to rotate synchronously.

17. The vortex ring-based wastewater treatment device containing suspended impurities according to claim 1, characterized in that: The upper movable sleeve is located directly above the lower movable sleeve; the central axis constrains the movement directions of the upper movable sleeve and the lower movable sleeve, so that the upper movable sleeve and the lower movable sleeve can only reciprocate up and down.

18. A method for treating wastewater containing suspended impurities, characterized in that: The sewage treatment device according to any one of claims 1 to 17 is applied.

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