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

Abstract

The invention discloses a suspended impurity-containing sewage treatment device based on a vortex ring. According to the device, a vortex ring can be generated in sewage containing suspended impurities, the suspended impurities in the sewage standing around the vortex ring are promoted to be sucked into the vortex ring, and meanwhile, the vortex ring wrapping the impurities can directionally move the impurities to a designated area for centralized collection; the multiple vortex ring generation holes are alternately closed and opened through the vortex ring cut-off assembly, vortex rings are continuously generated in the sewage treatment kettle, and therefore efficient removal of suspended impurities in sewage is achieved. The treatment device provided by the invention can realize uninterrupted treatment of sewage containing suspended impurities, and the treatment efficiency is improved.

Description

Technical Field

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

[0002] At the current stage, a new round of global environmental protection technology revolution and industrial transformation is accelerating, and environmental protection technology is facing higher development demands in terms of purification depth, efficiency, economy, etc. The removal of suspended impurities in sewage is one of the key links in the water treatment process, and the degree of removal of suspended impurities will significantly affect the quality of the treated water.

[0003] Flotation is one of the common methods for treating wastewater containing suspended impurities. It uses highly dispersed tiny bubbles as carriers to make the tiny bubbles adhere to the surface of hydrophobic suspended impurities, promote the suspended impurities to float to the surface of the sewage and form foam, and then scrape the foam to remove the suspended impurities in the sewage. However, in order to enhance the removal effect, chemical additives such as flocculants, coagulants, and flotation agents are often added to the sewage to be treated during the flotation process, which increases the treatment cost to a certain extent.

[0004] Vortex ring is a common fluid structure, such as the annular bubbles blown in water. The fluid in the vortex ring rotates from the inside to the outside around the imaginary axis to form a closed ring. The rotation process of this fluid effectively reduces the friction between it and the surrounding static fluid. Therefore, the vortex ring loses less kinetic energy during its axial movement, allowing the vortex ring to move over long distances while maintaining its shape. At the same time, due to the high rotation speed of the fluid inside the vortex ring, a relatively low-pressure area is formed relative to the surrounding static fluid.

[0005] The unique properties of the vortex ring make it have good application potential in the treatment of sewage containing suspended impurities. After the compressed gas is injected into the sewage containing suspended impurities to generate a gas vortex ring, the low-pressure area generated by the vortex ring will suck the suspended impurities in the static sewage around the vortex ring into the vortex ring. The vortex ring containing impurities can move along the specified axial direction, thereby transporting the impurities to the specified area for centralized collection. Therefore, the treatment of sewage containing suspended impurities based on the vortex ring will provide a new idea for existing water treatment methods and devices. Summary of the invention

[0006] 1. Technical issues to be resolved 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 concentratedly collected, 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.

[0007] (II) Technical solution According to a first aspect of the present invention, the present invention provides a device for treating sewage containing suspended impurities based on a vortex ring.

[0008] A vortex ring-based sewage treatment device containing suspended impurities comprises a sewage treatment kettle and a pressurizing chamber stacked up and down, wherein the sewage treatment kettle and the pressurizing chamber are both cylindrical structures and are mounted inside the sewage storage chamber; The top of 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 hole and a water outlet hole; The upper part of the kettle wall of the sewage treatment kettle is provided with a plurality of sewage outlets, and a scraping blade is arranged 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; A plurality of vortex ring generating holes are arranged on the bottom plate of the sewage treatment kettle; a vortex ring cutting component is arranged below the vortex ring generating holes; the vortex ring cutting component comprises an upper cutting component and a lower cutting component arranged above and below; The upper truncation assembly and the lower truncation assembly are respectively sleeved on the central axis through an upper movable sleeve and a lower movable sleeve; 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 through a driving shaft, and the driving gear is engaged 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 hinges are provided at non-center positions of the upper driven gear and the lower driven gear, respectively, to hinge the upper movable sleeve, the upper connecting rod and the upper driven gear, and to hinge the lower movable sleeve, the lower connecting rod and the lower driven gear.

[0009] Furthermore, the upper end of the boosting chamber is sealedly connected to the lower edge of the sewage treatment kettle, and the lower end of the boosting chamber is sealedly connected to the bottom plate of the sewage storage chamber. An air inlet is provided on the cylinder wall of the boosting chamber, and the air inlet is set through the sewage storage chamber wall for introducing high-pressure gas into the boosting chamber.

[0010] 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.

[0011] 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.

[0012] Furthermore, the alternating drive motor is fixed on an alternating drive motor fixing bracket and is fixedly connected to the driving gear.

[0013] 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, wherein the plurality of through holes are respectively used to set a water inlet pipe, a water outlet pipe, and an air inlet pipe, and are respectively connected with the water inlet hole, the water outlet hole, and the air inlet hole. Furthermore, the sewage storage chamber is sleeved on the sewage treatment kettle, the vortex ring cutoff assembly, and the outside of the booster chamber.

[0014] Furthermore, the top cover is also provided with a scraper motor fixing bracket, which is used to fix the scraper motor, and the scraper motor is connected to the scraper motor transmission shaft that passes through the central through hole of the top cover, and the other end of the scraper motor transmission shaft passes through the top cover and is connected to the scraper blade. The scraper motor drives the scraper blade to rotate circumferentially through the scraper motor transmission shaft to scrape impurities.

[0015] 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 a nearly closed space, and the scraping blade extends into the upper part of the sewage treatment kettle.

[0016] Furthermore, 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, so that impurities scraped by the scraping blade during the circumferential rotation can be discharged from the sewage treatment kettle through the sewage outlet under the action of centrifugal force.

[0017] Furthermore, the water inlet is arranged at the upper middle part of the sewage treatment kettle, and the water outlet is arranged at the lower part of the sewage treatment kettle. Preferably, the water inlet and the water outlet are arranged at both sides of the sewage treatment kettle. The sewage containing suspended impurities enters the sewage treatment kettle from the water inlet and is discharged through the water outlet after treatment.

[0018] Furthermore, the vortex ring generating holes are evenly arranged on the bottom plate of the sewage treatment kettle. The compressed gas enters the sewage treatment kettle through the vortex ring generating holes, forming a plurality of vortex rings parallel to the bottom plate of the sewage treatment kettle, and the vortex rings move vertically upward along the axial direction of the sewage treatment kettle. During the movement of the vortex rings, the gas in the vortex rings generates a low-pressure area due to the rapid rotation from the inside to the outside, thereby causing the suspended impurities around the vortex rings to move toward the vortex rings and be entrained by the vortex rings. The vortex rings entraining the impurities eventually move to contact the scraping blades on the upper part of the sewage treatment kettle, and are then scraped into the sewage outlet by the scraping blades and discharged from the sewage treatment kettle.

[0019] 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 holes, the upper truncation column can seal the same number of vortex ring generating holes to achieve the closure of this part of the vortex ring generating holes.

[0020] 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 coaxially fixedly connected to the upper truncated column bracket. 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 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. 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.

[0021] Further, the lower truncation assembly 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. The lower truncation column is also cylindrical, and its height is greater than the height of the upper truncation column, and the number is 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 column moves upward to insert into the vortex ring generating hole, the lower truncation column can seal the same number of vortex ring generating holes to achieve the closure of this part of the 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 30~60º, preferably, the angle is 45º, and the lower truncation columns are arranged on the lower truncation column bracket corresponding to the position of the vortex ring generating hole, and the bottom of the lower truncation column is fixedly connected to the lower truncation column bracket to achieve the synchronous up and down reciprocating movement of multiple lower truncation columns.

[0022] 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 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. 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 reciprocate up and down through the lower connecting rod. The center of the upper driven gear is connected to the center of the lower driven gear through the driven gear fixed shaft to achieve synchronous rotation of the upper driven gear and the lower driven gear.

[0023] Furthermore, the angle between the upper driven gear hinge and the lower driven gear hinge is 180º, so 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 truncated column to move upward, and the vortex ring generating hole corresponding to the upper truncated column is closed, while at this time, the lower driven gear hinge moves downward, driving the lower truncated column to move downward, and the vortex ring generating hole corresponding to the lower truncated column is opened, and vice versa, thereby realizing the alternating opening of the vortex ring generating hole. In the process of the upper truncated column and the lower truncated column alternately opening the vortex ring generating hole, at a certain moment, the lower vortex ring generating hole is completely sealed by the upper truncated column and the lower truncated column, that is, it is in a fully closed state, and the position of the upper truncated column and the lower truncated column at this moment is the initial position of the vortex ring truncation assembly.

[0024] 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, and the alternating drive motor is fixed to the bottom plate of the dirt storage chamber through the alternating drive motor fixing bracket. The driving gear is meshed with the lower driven gear, and the driving gear rotates under the drive of the alternating drive motor, driving the upper driven gear and the lower driven gear to rotate synchronously.

[0025] Furthermore, the inner diameters of the upper movable sleeve and the lower movable sleeve are the same.

[0026] 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 penetrates into 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 be able to reciprocate up and down, thereby forcing the upper truncation column and the lower truncation column to only be able to reciprocate up and down. A through hole is provided at the lower part of the central axis, and 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.

[0027] Furthermore, the upper end of the side wall of the boosting chamber 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 the initial position, that is, the vortex ring generating holes are all sealed by the upper truncation column and the lower truncation column, and are in a closed state. At this time, the boosting chamber and the bottom plate of the sewage treatment kettle, the upper truncation column, the lower truncation column, and the bottom plate of the sewage storage chamber form a closed space. The side wall of the boosting chamber is provided with the air inlet hole, and the compressed gas enters the closed space through the air inlet hole, raising the pressure in the boosting chamber to a level greater than the static pressure of the sewage to be treated in the sewage treatment kettle.

[0028] Furthermore, the compressed gas in the boost chamber enters the sewage treatment kettle through the vortex ring generating holes in the open state to form a vortex ring. The alternately opened vortex ring generating holes allow the compressed gas to alternately enter the sewage treatment kettle to continuously generate a vortex ring.

[0029] Furthermore, the upper part of the side wall of the sewage storage chamber is connected to the top cover by threads, and the lower part of the side wall of the sewage storage chamber is connected to the bottom plate of the sewage storage chamber by threads, and the outer diameters of the sewage storage chamber, the top cover and the bottom plate of the sewage storage chamber are equal. There is a gap between the inner wall of the sewage storage chamber and the outer edge of the sewage outlet, and the impurities discharged through the sewage outlet can flow into the sewage storage chamber for centralized collection. The centralized sewage discharge hole is provided at the lower part of the side wall of the sewage storage chamber, and the impurities in the sewage storage chamber can be discharged in a centralized manner.

[0030] According to a second aspect of the present invention, the present invention provides a method for treating wastewater containing suspended impurities, wherein the wastewater treatment device described above is used.

[0031] (III) Beneficial effects 1. The present invention makes full use of the characteristics of vortex rings that can form local low-pressure areas, can move in a directional manner with low resistance, and can propagate over long distances, and provides a sewage treatment device containing suspended impurities based on vortex rings. The device can generate vortex rings in sewage containing suspended impurities, causing suspended impurities in the stationary sewage around the vortex rings to be sucked into the vortex rings. At the same time, the vortex rings entraining impurities can directionally move the impurities to a designated area for centralized collection, thereby achieving efficient removal of suspended impurities in sewage.

[0032] 2. In the present invention, by alternately closing and opening a plurality of vortex ring generating holes through a vortex ring cutoff assembly, it is possible to realize continuous generation of vortex rings in the sewage treatment kettle, while preventing the vortex ring generating holes from opening simultaneously and generating all vortex rings at a certain moment, thereby preventing 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, thereby reducing the efficiency of suspended impurity treatment.

[0033] 3. The present invention does not need to add any chemical additives to the sewage to pre-treat the suspended impurities, and has a lower application cost.

[0034] 4. The present invention can realize uninterrupted and continuous treatment of sewage containing suspended impurities by means of the water inlet hole, water outlet hole, impurity scraping unit, sewage outlet, sewage storage cavity and centralized sewage outlet hole, thereby further improving the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is an explosion schematic diagram of a sewage treatment device containing suspended impurities based on a vortex ring in an embodiment of the present invention; Figure 2 is a front view of a sewage treatment device containing suspended impurities based on a vortex ring in an embodiment of the present invention; Figure 3is a side view of a sewage treatment device containing suspended impurities based on a vortex ring in an embodiment of the present invention; Figure 4 is a top view of a sewage treatment device containing suspended impurities based on a vortex ring in an embodiment of the present invention; Figure 5 is a schematic structural diagram of a scraping unit in an embodiment of the present invention; Figure 6 is a schematic structural diagram of a top cover in an embodiment of the present invention; Figure 7 is a schematic structural diagram of a sewage treatment kettle in an embodiment of the present invention; Figure 8 is a schematic diagram of the structure of the upper truncation component in an embodiment of the present invention; Fig. 9 It is a schematic diagram of the structure of the lower truncation component and the middle shaft in an embodiment of the present invention; Fig.10 is a schematic diagram of the structure of an alternating drive assembly in an embodiment of the present invention; Fig.11 is a schematic structural diagram of a pressurization chamber in an embodiment of the present invention; Fig.12 It is a schematic diagram of the structure of the dirt storage chamber and the dirt storage chamber bottom plate in an embodiment of the present invention; Fig.13 is a schematic structural diagram of the initial position of the vortex ring truncation assembly in an embodiment of the present invention; Fig.14 2 is a schematic diagram of the structure of the vortex ring generating hole corresponding to the closing of the lower cut-off component in an embodiment of the present invention; Fig.15 It is a schematic structural diagram of the vortex ring generating hole corresponding to the closure of the upper cut-off component in an embodiment of the present invention.

[0036] Description of reference numerals in the schematic diagram: 1-scraping motor; 2-scraping motor fixing bracket; 3-scraping motor transmission shaft; 4-top cover; 5-scraping blades; 6-drainage 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-middle shaft; 17-boosting chamber; 18-air inlet; 19-sewage storage chamber; 20-centralized drain hole; 21-sewage storage chamber bottom plate.

[0037] 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.

[0038] 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

[0039] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0040] Reference Figure 1 to Figure 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 a sewage storage chamber 19.

[0041] The sewage treatment kettle 8 includes a top cover 4, a bottom plate and a kettle wall, and the kettle wall is provided with a water inlet 7 and a water outlet 10. A plurality of sewage outlets 6 are provided on the upper part of the kettle wall, and a scraping blade 5 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 the scraping motor drive shaft 3 that passes through the top cover; a plurality of 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 hole; the vortex ring cutoff assembly includes an upper cutoff assembly 11 and a lower cutoff assembly 12 arranged up and down; wherein the upper cutoff assembly 11 and the lower cutoff assembly 12 are respectively mounted on the central axis 16 through 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 driving shaft, and the driving gear is engaged with a driven gear (an upper driven gear 11-7 and a lower driven gear 12-7) arranged on the central axis; a hinge is arranged on the upper movable sleeve 11-3 and the lower movable sleeve 12-3, and hinges are arranged at non-center positions of the upper driven gear 11-7 and the lower driven gear 12-7, respectively, and the upper movable sleeve 11-3, the upper connecting rod 11-5 and the upper driven gear 11-7 are respectively hinged, and the lower movable sleeve 12-3, the lower connecting rod 12-5 and the lower driven gear 12-7 are respectively hinged.

[0042] The upper end of the boosting chamber 17 is tightly connected to the bottom edge of the sewage treatment kettle 8, and the lower end of the boosting chamber 17 is tightly connected to the bottom plate 21 of the sewage storage chamber. An air inlet 18 is provided on the wall of the boosting chamber, and the air inlet 18 is set through the wall of the sewage storage chamber for introducing high-pressure gas into the boosting chamber.

[0043] 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 fixed shaft 12-8. The alternating drive assembly includes a driving gear 15, an alternating drive motor 13, and an alternating drive motor fixed 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 component.

[0044] 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 an upper and lower part. The upper part is a circular plate to prevent impurities from overflowing above the scraper blade 5, and the lower part is a curved four-leaf scraper to guide 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 guides the impurities and applies centrifugal force to the impurities, thereby achieving the scraping of the impurities.

[0045] The inner diameter of the sewage treatment kettle 8 is slightly larger than the outer diameter of the scraping blade 5, and smaller than the outer diameter of the top cover 4. The top cover 4 contacts the upper edge of the side wall of the sewage treatment kettle 8 to form a nearly closed space, and the scraping blade 5 extends into the upper part of the sewage treatment kettle 8. A plurality of (4 in the schematic diagram) nearly rectangular parallelepiped drain ports 6 are evenly arranged along the circumferential direction on the upper part of the side wall of the sewage treatment kettle 8. The height of the drain port 6 is the same as the height of the four-leaf scraper in the scraping blade 5, and the lower edge of the drain port 6 is flush with the lower edge of the four-leaf scraper, so that the impurities guided by the four-leaf scraper during the rotation of the scraping blade 5 are discharged from the sewage treatment kettle 8 from the drain port 6 under the action of centrifugal force.

[0046] The side walls of the sewage treatment kettle 8 are provided with a water inlet hole 7 and a water outlet hole 10, respectively. The water inlet hole 7 is provided at the middle and upper part of the kettle wall of the sewage treatment kettle 8, and the water outlet hole 10 is provided at the lower part of the kettle wall of the sewage treatment kettle 8. The water inlet hole 7 and the water outlet hole 10 are provided at both sides of the sewage treatment kettle 8, respectively, so that the sewage to be treated enters the sewage treatment kettle 8 from the middle and upper part, and the treated sewage is discharged from the lower part of the sewage treatment kettle 8 through the water outlet hole 10. A plurality of (16 in the schematic diagram) vortex ring generating holes 9 are evenly provided in a cross shape on the bottom plate of the sewage treatment kettle 8. The compressed gas enters the interior of the sewage treatment kettle 8 through the vortex ring generating holes 9, forming a plurality of vortex rings parallel to the bottom plate of the sewage treatment kettle 8, and the vortex rings move vertically upward along the axial direction of the sewage treatment kettle 8. 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 quickly rotates from the inside to the outside to generate a low-pressure area relative to the surrounding static sewage, 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.

[0047] In the upper truncation assembly 11, the upper truncation column 11-1 is cylindrical, and the number is several (8 in the figure), preferably 1 / 2 of the number of vortex ring generating holes 9, and the diameter of the upper truncation column 11-1 is approximately equal to the inner diameter of the vortex ring generating holes 9. When the 8 upper truncation columns 11-1 move upward to insert into the 8 vortex ring generating holes 9, the 8 upper truncation columns 11-1 can seal the 8 vortex ring generating holes 9 to achieve the closure of the 8 vortex ring generating holes 9. The upper truncation column bracket 11-2 is cross-shaped, and the 8 upper truncation columns 11-1 are fixed on the upper truncation column bracket 11-2 with reference to the positions of the 8 vortex ring generating holes 9 in the vertical direction. The bottom surface of the upper truncation column 11-1 is flush with the bottom surface of the upper truncation column bracket 11-2, so that the 8 upper truncation columns 11-1 can perform synchronous up and down reciprocating motion under the drive of the upper truncation column bracket 11-2. The upper movable sleeve 11-3 is coaxially fixedly connected with the upper truncated column bracket 11-2. The upper movable sleeve 11-3 is a hollow structure. The upper movable sleeve 11-3 is provided with an upper sleeve hinge 11-4 on one side. An upper driven gear 11-7 is arranged directly below the upper movable sleeve 11-3, and an upper driven gear hinge 11-6 is provided at a non-central position on one side of the upper driven gear 11-7. 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, and the upper sleeve hinge 11-4 and the upper driven gear hinge 11-6 are movably connected through an upper connecting rod 11-5. When the upper driven gear 11-7 rotates, the upper movable sleeve 11-3 and the upper truncated column bracket 11-2 and the eight upper truncated columns 11-1 connected thereto are driven to perform up and down reciprocating motions together through the upper connecting rod 11-5.

[0048] In the lower truncation assembly 12, the lower truncation column 12-1 is the same as the upper truncation column 11-1, and is cylindrical. The height of the lower truncation column 12-1 is greater than the height of the upper truncation column 11-1, and the number is the same as the number of the upper truncation columns, which is also 8, which is 1 / 2 of the number of vortex ring generating holes 9. The diameter of the lower truncation column 12-1 is also approximately equal to the inner diameter of the vortex ring generating hole 9. When the 8 lower truncation columns 12-1 move upward to insert into the 8 vortex ring generating holes 9 that do not have corresponding upper truncation columns 11-1, the 8 lower truncation columns 12-1 can seal the 8 vortex ring generating holes 9 to achieve the closure of the 8 vortex ring generating holes 9. 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°. 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 positions of the eight corresponding vortex ring generating holes 9 in the vertical direction, and the bottom surface of the lower truncated column 12-1 is flush with the bottom surface of the lower truncated column bracket 12-2, so that the eight lower truncated columns 12-1 can perform synchronous up and down reciprocating motion under the drive of the lower truncated column bracket 12-2. The lower moving sleeve 12-3 is fixedly connected with the lower truncated column bracket 12-2 coaxially. The lower moving sleeve 12-3 is also a hollow structure. The lower moving sleeve 12-3 is provided with a lower sleeve hinge 12-4 on one side. A lower driven gear 12-7 is arranged directly below the lower moving sleeve 12-3, and a lower driven gear hinge 12-6 is provided at a non-central position on one side of the lower driven gear 12-7. The lower sleeve hinge 12-4 and the lower driven gear hinge 12-6 are located on the same side of the lower moving sleeve 12-3 and the lower driven gear 12-7, and the lower sleeve hinge 12-4 and the lower driven gear hinge 12-6 are movably connected through a lower connecting rod 12-5. When the lower driven gear 12-7 rotates, the lower moving sleeve 12-3 and the lower truncated column bracket 12-2 and the eight lower truncated columns 12-1 connected thereto are driven to reciprocate up and down through 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 to achieve synchronous rotation of the upper driven gear 11-7 and the lower driven gear 12-7.

[0049] 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.

[0050] The hinge 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: (1) If Fig.13 As shown, when the upper driven gear hinge 11-6 moves upward, it drives the 8 upper truncated columns 11-1 to move upward, so that the 8 vortex ring generating holes 9 corresponding to the 8 upper truncated columns 11-1 are closed, and at the same time, the lower driven gear hinge 12-6 is moving downward, driving the 8 lower truncated columns 12-1 to move downward, and the 8 vortex ring generating holes 9 corresponding to the 8 lower truncated columns 12-1 are opened. At this time, the compressed gas will enter the sewage treatment kettle 8 through the 8 opened vortex ring generating holes 9 corresponding to the 8 lower truncated columns 12-1 and generate a vortex ring.

[0051] (2) If Fig.14 As shown, when the upper driven gear hinge 11-6 moves downward, it drives the 8 upper truncated columns 11-1 to move downward, so that the 8 vortex ring generating holes 9 corresponding to the 8 upper truncated columns 11-1 are opened, and at the same time, the lower driven gear hinge 12-6 is moving upward, driving the 8 lower truncated columns 12-1 to move upward, and the 8 vortex ring generating holes 9 corresponding to the 8 lower truncated columns 12-1 are closed. At this time, the compressed gas will enter the sewage treatment kettle 8 through the 8 opened vortex ring generating holes 9 corresponding to the 8 upper truncated columns 11-1 and generate a vortex ring.

[0052] (3) If Fig.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.

[0053] 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 being opened at the same time and all generating vortex rings at a certain moment, so as to prevent the vortex rings from interfering with each other due to the increase in diameter during the migration from the bottom of the sewage treatment kettle 8 to the upper part, thereby reducing the efficiency of suspended impurity treatment.

[0054] In the alternating drive assembly, a driving gear transmission shaft is provided at the center of the driving gear 15, and the driving gear transmission shaft is connected to the alternating drive motor 13, and the alternating drive motor 13 is fixed to the bottom plate 21 of the dirt storage chamber through the alternating drive motor fixing bracket 14. The driving gear 15 is meshed with the upper driven gear 11-7 and the lower driven gear 12-7. The driving gear 15 rotates under the drive of the alternating drive motor 13, and then drives 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 cut-off assembly 11 and the lower cut-off assembly 12.

[0055] The middle 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 inner diameter of the upper movable sleeve 11-3 is the same as that of the lower movable sleeve 12-3, and the diameter of the middle shaft 16 is slightly smaller than the inner diameters of the upper movable sleeve 11-3 and the lower movable sleeve 12-3. The middle shaft 16 penetrates into the upper movable sleeve 11-3 and the lower movable sleeve 12-3, and in the vertical direction, the upper movable sleeve 11-3 is arranged directly above the lower movable sleeve 12-3. The function of the middle shaft 16 is to constrain the movement direction of the upper movable sleeve 11-3 and the lower movable sleeve 12-3, forcing the upper movable sleeve 11-3 and the lower movable sleeve 12-3 to only perform up and down reciprocating motion in the vertical direction, thereby forcing the upper truncation column 11-1 and the lower truncation column 12-1 to only perform up and down reciprocating motion in the vertical direction. A through hole is provided at the lower part of the middle shaft 16, the inner diameter of the through hole is 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.

[0056] The upper end of the side wall of the boosting 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 boosting chamber 17 and the bottom plate of the sewage treatment kettle 8, the upper truncation column 11-1, the lower truncation column 12-1, and the bottom plate 21 of the sewage storage chamber form a closed space. The side wall of the boosting chamber 17 is provided with an air inlet 18, and the compressed gas enters the closed space through the air inlet 18, and the pressure in the boosting chamber 17 is increased to be greater than the static pressure of the sewage to be treated in the sewage treatment kettle 8, so that the compressed gas in the boosting chamber 17 can have enough pressure to enter the sewage treatment kettle 8 to form a continuous vortex ring during the alternating opening of the vortex ring generating holes 9.

[0057] The upper part of the side wall of the dirt storage chamber 19 is connected to the top cover 4 by threads, and the lower part of the side wall of the dirt storage chamber 19 is connected to the dirt storage chamber bottom plate 21 by threads. The dirt storage chamber 19 has the same outer diameter as the top cover 4 and the dirt storage chamber bottom plate 21. There is a gap between the inner wall of the dirt storage chamber 19 and the outer edge of the four drain ports 6, and the impurities discharged through the four drain ports 6 can flow into the dirt storage chamber 19 for centralized collection. A centralized drain hole 20 is provided at the lower part of the side wall of the dirt storage chamber 19, which can discharge the impurities in the dirt storage chamber in a centralized manner.

[0058] The working process of the vortex ring-based sewage treatment device containing suspended impurities of the present invention is as follows: (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; (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; (3) Start the alternating drive motor 13 to make the driving gear 15 start to rotate, drive the upper cut-off assembly 11 and the lower cut-off assembly 12 to start up and down reciprocating motion, and alternately open the vortex ring generating hole 9 to allow the compressed gas to enter the sewage treatment kettle 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 kettle 8; (4) Start the scraping motor 1 to make the scraping blade 5 start to rotate, 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; (5) Open the water outlet 10 and adjust the flow rates of the water inlet 7 and the water outlet 10 to ensure a continuous sewage treatment process; (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, wherein the sewage treatment kettle and the booster chamber are both cylindrical structures and are sleeved 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 hole and a water outlet hole; The upper part of the kettle wall of the sewage treatment kettle is provided with a plurality of sewage outlets, and a scraping blade is arranged 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 comprises an upper truncation assembly and a lower truncation assembly arranged up and down; The upper cut-off assembly and the lower cut-off assembly are respectively sleeved on the central axis through the upper movable sleeve and the lower movable sleeve; the central axis is arranged on the axis of the dirt storage chamber; 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 through a driving shaft, and the driving gear is engaged 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 hinges are provided at non-center positions of the upper driven gear and the lower driven gear, respectively, to hinge the upper movable sleeve, the upper connecting rod and the upper driven gear, and to hinge the lower movable sleeve, the lower connecting rod and the lower driven gear.

2. The suspended impurities wastewater treatment device according to claim 1, 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 suspended impurities wastewater treatment device according to claim 1, characterized in that: An air inlet is provided on the cylinder wall of the pressurizing chamber, and the air inlet is arranged through the wall of the dirt storage chamber, and is used for introducing high-pressure gas into the pressurizing chamber.

4. The suspended impurities wastewater treatment device according to claim 1, characterized in that: The upper cut-off assembly and the lower cut-off assembly are driven by the alternating driving motors to rise or fall, thereby intermittently connecting or disconnecting with the vortex ring generating hole.

5. The suspended impurities wastewater treatment device according to claim 1, characterized in that: The boost chamber is sleeved on the outside of the vortex ring truncation component.

6. The suspended impurities wastewater treatment device according to claim 1, 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.

7. The suspended impurities wastewater treatment device according to claim 1, 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.

8. The device for treating wastewater containing suspended impurities according to claim 1, 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.

9. The device for treating wastewater 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 arranged at both sides of the sewage treatment kettle respectively.

10. The device for treating wastewater 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.

11. The suspended impurities wastewater treatment device 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 outer side of the upper movable sleeve. The upper truncation column is cylindrical, and the number of the upper truncation columns is less than the number of vortex ring generating holes.

12. The device for treating wastewater 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 via the upper connecting rod.

13. The suspended impurities wastewater treatment device according to claim 1, 11 or 12, characterized in that: The lower truncation component comprises 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.

14. The device for treating wastewater containing suspended impurities according to claim 13, characterized in that: The lower movable sleeve is fixedly connected to the lower truncated column bracket, and one side of the lower movable sleeve is provided with the lower sleeve hinge; A lower driven gear is arranged directly below the lower movable sleeve, and a lower driven gear hinge is arranged at a non-central 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.

15. The device for treating wastewater containing suspended impurities according to claim 13, 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.

16. The device for treating wastewater containing suspended impurities according to claim 1, characterized in that: The included angle between the upper driven gear hinge and the lower driven gear hinge is 180°.

17. The device for treating wastewater containing suspended impurities according to claim 1, characterized in that: The driving gear of the alternate driving electrode meshes with the upper driven gear and the lower driven gear. The driving gear rotates under the driving of the alternate driving motor, driving the upper driven gear and the lower driven gear to rotate synchronously.

18. The device for treating wastewater 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.

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

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