A vortex mixing ejector for air flotation machine

Abstract

The invention discloses a vortex mixing ejector for an air flotation machine, which belongs to the technical field of sewage treatment equipment. The structure of the vortex mixing ejector comprises a vortex mixing cylinder, an air guide cylinder, a hollow turntable and a plurality of spiral air storage pipes; a water inlet pipe is connected to the side of the vortex mixing cylinder, and an air inlet pipe and a drain pipe are respectively connected to the two ends of the vortex mixing cylinder; the air guide cylinder is detachably fixedly installed in the air inlet pipe, the hollow turntable is rotatably installed at the end of the air guide cylinder, a plurality of spiral air storage pipes are fixed and connected at equal angle intervals at the end of the hollow turntable, and a plurality of exhaust end heads are connected to the side of the spiral air storage pipe; the application can efficiently and evenly distribute the gas and melt it into the flowing liquid, and extend the flow path of the gas-liquid mixture in the reactor, so that the size of the bubbles mixed in the liquid is reduced, thereby increasing the gas-liquid mixing effect, maintaining the stable state of the gas-liquid mixture, and avoiding the gas-liquid mixture from being separated again during the subsequent transportation process.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, in particular to a swirl-mixing ejector for an air flotation machine. Background Art

[0002] The flotation machine is a water treatment device that uses the adsorption capacity of bubbles to achieve solid-liquid separation. Its basic principle is to introduce air or generate micro bubbles into the water to be treated. These bubbles will absorb suspended matter or flocculated particles in the water during the rising process. Since the density of bubbles is much smaller than that of water, they can carry the attached particles to the water surface to form scum, which is then collected and discharged by the scraper, thereby achieving solid-liquid separation.

[0003] The existing application number is CN202011397190.7, which is a high-efficiency jet flotation machine for sewage treatment. The patent document discloses a solution combining the use of a venturi tube and an air suction structure to increase the gas-liquid mixing efficiency. Specifically: a sleeve is movably mounted in the pump pipe, and the pump pipe rotates under the transmission cooperation of the gear, the transmission teeth and the bevel teeth. With the cooperation of the cyclone plate, the amount of air sucked in can be further promoted. At the same time, under the blocking of the liquid separation block, the water flow is bifurcated, so that the sucked air has more space to enter, and under the guiding and converging action of the mixing section, the water clamps the air and mixes, and the rotation of the pump pipe drives the change of the water flow direction in the pipe, further promoting the mixing of water and air in the mixing section. At the same time, the rotation of the diffusion section can drive the rotation of the rotor blade, and the rotating rotor blade can pump the water in the diffusion section outward, thereby eliminating the reaction force of the water pressure in the flotation tank on the water flow direction in the sleeve, ensuring the flow rate of water in the sleeve, and improving the gas-liquid mixing efficiency.

[0004] However, when using the technical solution in the above-mentioned patent document, due to the short mixing time of gas and liquid, this will cause the gas mixed in the liquid to be in the form of large bubbles. When the pipeline length is long, the mixing of such large bubbles will cause the gas-liquid mixture flowing to the end of the pipeline to be re-separated, thereby adversely affecting the pollution removal efficiency of the flotation machine. Therefore, the present application provides a vortex mixing ejector for a flotation machine. Summary of the invention

[0005] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a vortex mixing ejector for a flotation machine, which can efficiently and evenly distribute the gas and integrate it into the flowing liquid, and extend the flow path of the gas-liquid mixture in the reactor, so that the size of the bubbles mixed in the liquid is reduced, the gas-liquid mixing effect is increased, the stable state of the gas-liquid mixture is maintained, and the gas-liquid mixture is prevented from being separated again during the subsequent transportation process.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] Provided is a vortex mixing ejector for an air flotation machine, comprising a vortex mixing cylinder, an air guide cylinder, a hollow turntable and a plurality of spiral air storage tubes; a water inlet pipe is connected to the side of the vortex mixing cylinder, and an air inlet pipe and a water discharge pipe are respectively connected to the two ends of the vortex mixing cylinder; the air guide cylinder is detachably fixedly installed in the air inlet pipe, the hollow turntable is rotatably installed at the end of the air guide cylinder, a plurality of spiral air storage tubes are fixed and connected at equal angles at the end of the hollow turntable, and a plurality of exhaust terminals are connected to the side of the spiral air storage tube.

[0008] Furthermore, the extension direction of the exhaust end is consistent with the tangent direction of the spiral extension trajectory of the spiral gas storage pipe.

[0009] Furthermore, a flow-increasing path mixing cylinder is fixedly installed at the other end of the drain pipe, and the flow-increasing path mixing cylinder is inserted between the plurality of spiral air storage pipes.

[0010] Furthermore, the end of the flow-increasing path mixing cylinder close to the hollow rotating disk is integrally formed with a reducing port, and a plurality of flow grooves are arranged at equal angular intervals outside the reducing port.

[0011] Furthermore, an I-shaped cylinder is rotatably installed on the inner side of the mixing cylinder corresponding to the position of the water inlet pipe, and both ends of the I-shaped cylinder are respectively abutted against limiting ridges, and the limiting ridges are fixedly connected to the inner wall of the mixing cylinder. A water storage cavity is formed between the outer side surface of the I-shaped cylinder and the inner wall of the mixing cylinder, and a plurality of drainage holes are arranged on the I-shaped cylinder.

[0012] Furthermore, a plurality of oblique stirring arms are installed on the I-shaped cylinder, and the oblique stirring arms penetrate the side of the I-shaped cylinder and extend toward the inside and outside of the I-shaped cylinder. The ends of the oblique stirring arms abut against the inner side of the end of the I-shaped cylinder, and the contact arc surface of the end of the oblique stirring arm abuts against the inner side surface of the mixing cylinder, thereby dividing the water storage chamber into a plurality of strip-shaped water storage chambers.

[0013] Furthermore, the water inlet pipe and the I-shaped cylinder are provided in plurality, and the plurality of I-shaped cylinders are arranged at equal intervals on the inner side of the mixing cylinder; along the flow direction of the gas inside the air guide cylinder, the inner diameters of the plurality of mixing cylinders gradually increase.

[0014] Furthermore, a spiral plate is fixedly installed at the center of the end of the hollow rotating disk, and the spiral plate is inserted into the mixing cylinder of the flow-increasing path.

[0015] Furthermore, end covers are detachably fixedly mounted on both ends of the mixing cylinder, and the air inlet pipe and the drain pipe are fixedly connected and communicated with the two end covers respectively.

[0016] Furthermore, a sealing ring is installed on the air guide cylinder, and the outer side surface of the sealing ring abuts against the inner side wall of the air intake pipe.

[0017] Furthermore, the oblique stirring arm is slidably connected to the I-shaped cylinder, and a spring sheet is fixedly installed between the oblique stirring arm and the inner side surface of the I-shaped cylinder for making the oblique stirring arm always have a tendency to shrink toward the inside of the water storage chamber, and a circulation groove is provided on the side of the oblique stirring arm; a sliding positioning arm is fixedly installed between the limiting ridges on both sides of the I-shaped cylinder, and the side of the sliding positioning arm is in contact with the inner wall of the mixing cylinder, and the guiding edge of the side of the sliding positioning arm can abut against the contact arc surface.

[0018] Furthermore, the water inlet pipe is arranged at the edge of the mixing cylinder, and its axis is tangent to the outer side wall of the I-shaped cylinder.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The vortex mixer ejector for the flotation machine of the example of the present invention fills gas into the air inlet pipe, and the gas flows along the air guide cylinder, the hollow turntable and the spiral air storage tube, and is finally filled into the vortex mixer through multiple exhaust ends. As the air pressure inside the hollow turntable increases, the gas discharge speed at the exhaust end increases. Since the extension direction of the exhaust end is consistent with the tangent direction of the spiral extension trajectory of the spiral air storage tube, the reaction force generated during the gas discharge process is used to drive the hollow turntable to rotate on the air guide cylinder, and then the position of the exhaust end is continuously changed, so that the gas is evenly filled into various places inside the vortex mixer, thereby increasing the efficiency of gas integration into the flowing liquid.

[0021] 2. In the vortex mixing ejector for flotation machine of the example of the present invention, an I-shaped cylinder is rotatably installed on the inner side of the vortex mixing cylinder corresponding to the position of the water inlet pipe, and a water storage chamber is formed between the outer side surface of the I-shaped cylinder and the inner side wall of the vortex mixing cylinder. A plurality of drainage holes are provided on the I-shaped cylinder. Since the number of drainage holes is small and the diameters are small, the pressure of the liquid entering the water storage chamber through the water inlet pipe can be slightly greater than the pressure of the liquid in the vortex mixing cylinder. Subsequently, the liquid in the water storage chamber is slowly released into the vortex mixing cylinder through the plurality of drainage holes, so that the liquid is evenly filled in various places inside the vortex mixing cylinder, thereby improving the gas-liquid mixing efficiency.

[0022] 3. In the vortex mixing ejector for flotation machine of the example of the present invention, a flow increasing path mixing cylinder is fixedly installed at one end of the drain pipe located inside the vortex mixing cylinder. The flow increasing path mixing cylinder is inserted between multiple spiral air storage tubes. The flow increasing path mixing cylinder plays a certain role in blocking the water flow, so that the liquid filled in the vortex mixing cylinder will not be directly discharged from the drain pipe, which prolongs the flow path of the gas-liquid mixture in the reactor, increases the gas-liquid mixing time, makes the bubbles mixed in the liquid more uniform and dense, the size of the bubbles is smaller, and the gas-liquid mixing effect is better.

[0023] 4. In the vortex mixing ejector for flotation machine of the example of the present invention, a spiral plate is fixedly installed at the center of the end of the hollow turntable, and the spiral plate is inserted into the mixing cylinder of the flow-increasing path. The spiral channel formed by the edge of the spiral plate and the inner wall of the mixing cylinder of the flow-increasing path is used to further extend the gas-liquid mixing time, reduce the size of bubbles mixed in the liquid, maintain the stable state of the gas-liquid mixture, and avoid the gas-liquid mixture from being separated again during the subsequent transportation process.

[0024] 5. The vortex mixing ejector for the flotation machine of the example of the present invention is provided with multiple water inlet pipes and I-shaped tubes. The water storage chamber near the end of the mixing tube of the flow-increasing path has a smaller capacity, while the water storage chamber away from the end of the mixing tube of the flow-increasing path has a larger capacity. According to the capacity of the water storage chamber, the liquid filling amount at the corresponding water inlet pipe is adjusted to meet the different degrees of sewage treatment requirements inside the flotation machine and ensure that most of the liquid flows along the longest flow path.

[0025] 6. The vortex mixer ejector for flotation machine of the present invention does not use additional power drive equipment for the rotation control of the hollow turntable and the I-shaped cylinder, and the telescopic control of the oblique stirring arm. The overall control of the equipment is convenient, easy to maintain, and has a low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0027] Figure 1 A schematic diagram of the overall structure of a swirl-mixing ejector for an air flotation machine provided in an embodiment of the present invention;

[0028] Figure 2 The cross-section of the vortex mixing ejector for the air flotation machine provided by the embodiment of the present invention is Figure 1 ;

[0029] Figure 3 The cross-section of the vortex mixing ejector for the air flotation machine provided by the embodiment of the present invention is Figure 2 ;

[0030] Figure 4 A schematic diagram of the structure of a hollow turntable, a spiral gas storage pipe and an exhaust end provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of the air guide cylinder, the sealing ring and the hollow turntable provided in an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the structure of a mixing cylinder, a limiting rib, an I-shaped cylinder and an oblique stirring arm provided in an embodiment of the present invention;

[0033] Figure 7A schematic diagram of the structures of a vortex mixing cylinder, an air guide cylinder and an I-shaped cylinder provided in an embodiment of the present invention;

[0034] Figure 8 A cross-sectional view of an I-shaped cylinder and an oblique stirring arm provided in an embodiment of the present invention;

[0035] Fig. 9 A schematic diagram of the structure of an I-shaped cylinder, a water discharge hole and an oblique stirring arm provided in an embodiment of the present invention;

[0036] Fig.10 A schematic diagram of the structure of the oblique stirring arm and the flow slot provided in an embodiment of the present invention;

[0037] Fig.11 A schematic diagram of the structure of the contact arc surface, the flow groove and the spring sheet provided in an embodiment of the present invention;

[0038] Fig.12 A schematic structural diagram of the limiting ribs and the sliding positioning arms provided in an embodiment of the present invention.

[0039] In the figure: 11 swirl mixing cylinder, 12 water inlet pipe, 13 end cover, 14 air inlet pipe, 15 drain pipe, 16 limit rib, 17 sliding positioning arm, 171 guide edge, 21 air guide cylinder, 211 sealing ring, 22 hollow turntable, 23 spiral air storage pipe, 24 exhaust end, 31 flow increase path mixing cylinder, 32 reducer, 33 flow groove, 34 spiral plate, 41 I-shaped cylinder, 411 drain hole, 42 oblique stirring arm, 421 contact arc surface, 422 flow groove, 423 spring sheet. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0041] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0042] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0046] Embodiment 1:

[0047] like Figure 1 , Figure 2 and Figure 5 As shown, this embodiment provides a vortex mixing ejector for an air flotation machine, comprising a vortex mixing cylinder 11 , an air guide cylinder 21 , a hollow turntable 22 and a plurality of spiral air storage tubes 23 .

[0048] like Figure 1 , Figure 2 and Figure 3 As shown, a water inlet pipe 12 is connected to the side of the vortex mixing cylinder 11, and an air inlet pipe 14 and a drain pipe 15 are respectively connected to the two ends of the vortex mixing cylinder 11. End covers 13 are detachably fixedly installed at the two ends of the vortex mixing cylinder 11, and the air inlet pipe 14 and the drain pipe 15 are respectively fixedly connected and connected to the two end covers 13.

[0049] like Figure 2 and Figure 4As shown, the air guide cylinder 21 is detachably fixedly installed in the air intake pipe 14, the hollow turntable 22 is rotatably installed at the end of the air guide cylinder 21, and a plurality of spiral air storage pipes 23 are fixed and connected at equal angles at the ends of the hollow turntable 22, and a plurality of exhaust terminals 24 are connectedly arranged on the sides of the spiral air storage pipes 23, and the extension direction of the exhaust terminals 24 is consistent with the tangent direction of the spiral extension trajectory of the spiral air storage pipes 23.

[0050] like Figure 5 As shown, a sealing ring 211 is installed on the air guide cylinder 21 , and the outer side of the sealing ring 211 abuts against the inner wall of the intake pipe 14 , so that the gas entering the intake pipe 14 is introduced into the hollow turntable 22 through the air guide cylinder 21 .

[0051] When using the swirl-mixing ejector for air flotation machine of the present application;

[0052] Use a hydraulic pump to fill liquid into the water inlet pipe 12, and use an air compressor and an air pump to fill gas into the air inlet pipe 14. The gas can be purified air without impurities;

[0053] The gas flows along the gas guide cylinder 21, the hollow turntable 22 and the spiral gas storage tube 23, and is finally filled into the mixing cylinder 11 through multiple exhaust terminals 24; since there is a large gas pressure inside the hollow turntable 22 and the diameter of the exhaust terminal 24 is small, the liquid is prevented from flowing back from the exhaust terminal 24 into the spiral gas storage tube 23.

[0054] As the internal air pressure of the hollow turntable 22 increases, the gas discharge speed at the exhaust terminal 24 increases. Since the extension direction of the exhaust terminal 24 is consistent with the tangent direction of the spiral extension trajectory of the spiral gas storage tube 23, the reaction force generated during the gas discharge process drives the hollow turntable 22 to rotate on the gas guide cylinder 21, thereby continuously changing the position of the exhaust terminal 24, and evenly filling the gas into various places inside the mixing cylinder 11, increasing the efficiency of gas integration into the flowing liquid.

[0055] In addition, during the rotation of the hollow turntable 22, the plurality of spiral gas storage tubes 23 slowly stir the gas filled into the mixing drum 11 and the liquid in the mixing drum 11, thereby increasing the gas-liquid mixing efficiency.

[0056] In order to extend the flow path of the gas-liquid mixture in the reactor and increase the gas-liquid mixing effect, such as Figure 2 and Figure 3As shown, a flow-increasing path mixing cylinder 31 is fixedly installed at the other end of the drain pipe 15, and the end of the flow-increasing path mixing cylinder 31 is inserted between multiple spiral air storage tubes 23; the flow-increasing path mixing cylinder 31 plays a certain role in blocking the water flow, so that the liquid filled in the vortex mixing cylinder 11 will not be directly discharged from the drain pipe 15, extending the flow path of the gas-liquid mixture in the reactor, increasing the gas-liquid mixing time, making the bubbles mixed in the liquid more uniform and fine, the bubble size is smaller, and the gas-liquid mixing effect is better.

[0057] In order to ensure the rotation stability of the hollow turntable 22, Figure 2 As shown, the ends of the multiple spiral gas storage tubes 23 away from the hollow turntable 22 are contracted toward the direction close to the rotation axis of the mixing drum 11, so that the center of gravity of the multiple spiral gas storage tubes 23 is closer to the hollow turntable 22, thereby increasing the rotation stability of the hollow turntable 22. In addition, since the multiple exhaust ends 24 are distributed at different distances from the rotation axis of the mixing drum 11, the uniform gas filling effect is further increased.

[0058] In order to increase the uniformity of liquid filling into the mixing drum 11, Figure 6 and Fig. 9 As shown, an I-shaped cylinder 41 is rotatably installed at a position corresponding to the water inlet pipe 12 on the inner side of the mixing cylinder 11, and a limiting rib 16 is respectively provided at both ends of the I-shaped cylinder 41, and the limiting rib 16 is fixedly connected to the inner side wall of the mixing cylinder 11, and a water storage cavity is formed between the outer side surface of the I-shaped cylinder 41 and the inner side wall of the mixing cylinder 11, and a plurality of drainage holes 411 are provided on the I-shaped cylinder 41;

[0059] Since the number of the drainage holes 411 is small and the diameter is small, the pressure of the liquid entering the water storage chamber through the water inlet pipe 12 can be slightly greater than the liquid pressure in the mixing drum 11. Subsequently, the liquid in the water storage chamber is slowly released into the mixing drum 11 through the multiple drainage holes 411, so that the liquid can be evenly filled in various places inside the mixing drum 11, thereby improving the gas-liquid mixing efficiency.

[0060] like Figure 7 and Figure 8 As shown, a plurality of oblique stirring arms 42 are installed on the I-shaped cylinder 41, and the oblique stirring arms 42 penetrate the side of the I-shaped cylinder 41 and extend in the direction of the inside and outside of the I-shaped cylinder 41, and the ends of the oblique stirring arms 42 abut against the inner side of the end of the I-shaped cylinder 41, and the contact arc surface 421 of the end of the oblique stirring arm 42 abuts against the inner side surface of the mixing cylinder 11; in this embodiment, the oblique stirring arms 42 are fixedly installed on the I-shaped cylinder 41.

[0061] The water inlet pipe 12 is arranged at the edge of the mixing drum 11, and its axis is tangent to the outer wall of the I-shaped drum 41. Since the end of the oblique stirring arm 42 abuts against the inner side of the mixing drum 11, the multiple oblique stirring arms 42 can divide the water storage chamber into multiple strip-shaped water storage chambers.

[0062] As the liquid is filled into the water inlet pipe 12, the water flow pushes the oblique stirring arm 42 from the tangential direction of the I-shaped cylinder 41, causing the I-shaped cylinder 41 to rotate between the two limiting ribs 16. Since one end of the oblique stirring arm 42 extends toward the inner side of the I-shaped cylinder 41, the gas-liquid mixture in the mixing cylinder 11 is slowly stirred. During this process, multiple strip-shaped water storage chambers are connected to the water inlet pipe 12 in sequence.

[0063] Embodiment 2:

[0064] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 6 and Figure 7 As shown, in this embodiment, the water inlet pipe 12 and the I-shaped cylinder 41 are provided in plurality, and the plurality of I-shaped cylinders 41 are arranged at equal intervals on the inner side of the mixing cylinder 11; the liquid is filled into the mixing cylinder 11 through the plurality of water inlet pipes 12. Compared with a single water inlet pipe 12, the flow rate of the liquid at the water inlet pipe 12 is reduced, so that it is easier to mix with the gas uniformly filled into various places inside the mixing cylinder 11.

[0065] like Figure 7 As shown, along the flow direction of the gas inside the gas guide cylinder 21, the inner diameters of the multiple mixing cylinders 11 gradually increase, and the corresponding water storage chamber volume gradually increases to accommodate the multiple spiral gas storage tubes 23 whose ends contract toward the direction close to the rotation axis of the mixing cylinder 11, ensuring that the liquid filled into the mixing cylinder 11 can be close to the exhaust end 24;

[0066] Among them, the water storage chamber near the end of the flow-increasing path mixing cylinder 31 has a smaller capacity, and the water storage chamber away from the end of the flow-increasing path mixing cylinder 31 has a larger capacity. According to the capacity of the water storage chamber, the liquid filling amount at the corresponding water inlet pipe 12 is adjusted to adapt to the different degrees of sewage treatment needs inside the flotation machine and ensure that most of the liquid flows along the longest flow path.

[0067] Embodiment three:

[0068] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 3As shown, in this embodiment, the flow-increasing path mixing cylinder 31 is integrally formed with a reducing port 32 at the end near the hollow turntable 22, and a plurality of flow grooves 33 are arranged at equal angular intervals on the outside of the reducing port 32. The gas-liquid mixture enters the flow-increasing path mixing cylinder 31 through the end of the reducing port 32 and the plurality of flow grooves 33, and is finally discharged through the drain pipe 15.

[0069] In order to further prolong the gas-liquid mixing time and reduce the size of bubbles mixed into the liquid, such as Figure 3 As shown, a spiral plate 34 is fixedly installed at the center of the end of the hollow turntable 22, and the spiral plate 34 is inserted into the flow-increasing path mixing cylinder 31. The spiral channel formed by the edge of the spiral plate 34 and the inner wall of the flow-increasing path mixing cylinder 31 is used to further extend the gas-liquid mixing time, reduce the size of bubbles mixed in the liquid, maintain the stable state of the gas-liquid mixture, and avoid the gas-liquid mixture from being separated again during the subsequent transportation process.

[0070] Embodiment 4:

[0071] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Fig.10 , Fig.11 and Fig.12 As shown, in this embodiment, the oblique stirring arm 42 is slidably connected to the I-shaped cylinder 41 , and a flow groove 422 is provided on the side of the oblique stirring arm 42 .

[0072] When the contact arc surface 421 abuts against the inner side surface of the mixing cylinder 11, the flow groove 422 shrinks into the water storage cavity;

[0073] When the contact arc surface 421 is out of contact with the inner side surface of the mixing cylinder 11 , the flow groove 422 connects the spaces inside and outside the water storage chamber.

[0074] By controlling the sliding of the oblique stirring arm 42 on the I-shaped cylinder 41, the flow groove 422 connects the inner and outer sides of the strip-shaped water storage cavity, and releases the liquid with a relatively high pressure inside the strip-shaped water storage cavity, so that the liquid can be more evenly filled into the outer circumference of the spiral gas storage tube 23;

[0075] The sliding drive mode for the oblique stirring arm 42 is as follows:

[0076] like Fig.12 As shown, at least two sliding positioning arms 17 are fixedly installed between the limiting ribs 16 on both sides of the I-shaped cylinder 41, so that the side of the sliding positioning arm 17 fits against the inner wall of the mixing cylinder 11, and the guiding edge 171 of the side of the sliding positioning arm 17 can abut against the contact arc surface 421; and a spring sheet 423 is fixedly installed between the oblique stirring arm 42 and the inner side surface of the I-shaped cylinder 41 to make the oblique stirring arm 42 always have a tendency to shrink toward the inside of the strip-shaped water storage cavity.

[0077] Under the action of the water flow inside the water inlet pipe 12, the I-shaped cylinder 41 is driven to rotate, so that the contact arc surface 421 at the end of the oblique stirring arm 42 abuts against the guide edge 171. At this time, the oblique stirring arm 42 automatically extends from the inside of the strip water storage cavity, connecting the inside and outside of the strip water storage cavity, and releasing the liquid with high pressure inside, so that the liquid is evenly filled into the outer peripheral side of the spiral gas storage pipe 23 without increasing the number of water inlet pipes 12;

[0078] As the I-shaped cylinder 41 continues to rotate, the contact arc surface 421 and the guide edge 171 are separated from the abutment state, and under the action of the spring sheet 423, the oblique stirring arm 42 is retracted into the strip-shaped water storage cavity.

[0079] The components of the present application are compactly combined and have high space utilization efficiency; no power drive equipment is used for the rotation control of the hollow turntable 22 and the I-shaped cylinder 41, as well as the telescopic control of the oblique stirring arm 42, so that the overall control of the equipment is convenient, easy to maintain, and the failure rate is low.

[0080] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0081] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. A vortex mixer ejector for an air flotation machine, comprising a vortex mixer cylinder (11), characterized in that: The side of the mixing cylinder (11) is connected to a water inlet pipe (12), and the two ends of the mixing cylinder (11) are respectively connected to an air inlet pipe (14) and a water discharge pipe (15); An air guide cylinder (21) is detachably fixedly installed in the air intake pipe (14), a hollow turntable (22) is rotatably installed on the air guide cylinder (21), a plurality of spiral air storage pipes (23) are fixedly and connectedly arranged at the end of the hollow turntable (22), a plurality of exhaust end heads (24) are connectedly arranged at the side of the spiral air storage pipes (23), and the extension direction of the exhaust end heads (24) is consistent with the tangent direction of the spiral extension trajectory of the spiral air storage pipes (23); a flow increase path mixing cylinder (31) is fixedly installed at the other end of the drainage pipe (15), and one end of the flow increase path mixing cylinder (31) extends toward the middle area of ​​the plurality of spiral air storage pipes (23); An I-shaped cylinder (41) is rotatably mounted on the inner side of the mixing cylinder (11) at a position corresponding to the water inlet pipe (12); both ends of the I-shaped cylinder (41) respectively abut against limiting ridges (16); the limiting ridges (16) are fixedly connected to the inner side wall of the mixing cylinder (11); a water storage cavity is formed between the outer side surface of the I-shaped cylinder (41) and the inner side wall of the mixing cylinder (11); and a plurality of water drainage holes (411) are provided on the I-shaped cylinder (41).

2. The swirl-mixing ejector for an air flotation machine according to claim 1, characterized in that: The end of the flow-increasing path mixing cylinder (31) close to the hollow rotating disk (22) is integrally formed with a diameter-changing opening (32), and a plurality of flow slots (33) are arranged at equal angular intervals on the edge of the diameter-changing opening (32).

3. The swirl-mixing ejector for an air flotation machine according to claim 1, characterized in that: A plurality of oblique stirring arms (42) are mounted on the I-shaped cylinder (41). The oblique stirring arms (42) penetrate the side of the I-shaped cylinder (41) and extend in directions of both sides of the I-shaped cylinder (41). The ends of the oblique stirring arms (42) abut against the inner side of the end of the I-shaped cylinder (41). The contact arc surface (421) of the end of the oblique stirring arm (42) abuts against the inner side surface of the mixing cylinder (11), thereby dividing the water storage cavity into a plurality of strip-shaped water storage cavities.

4. The swirl-mixing ejector for an air flotation machine according to claim 1, characterized in that: A plurality of the water inlet pipes (12) and the I-shaped cylinders (41) are arranged in a one-to-one correspondence, and the plurality of I-shaped cylinders (41) are arranged at equal intervals on the inner side of the mixing cylinder (11); Along the flow direction of the gas inside the gas guide cylinder (21), the inner diameters of the plurality of vortex mixing cylinders (11) gradually increase, and the corresponding volume of the water storage chamber gradually increases.

5. The swirl-mixing ejector for an air flotation machine according to claim 1, characterized in that: A spiral plate (34) is fixedly mounted at the center of the end of the hollow rotating disk (22), and the spiral plate (34) is inserted into the mixing cylinder (31) of the flow-increasing path.

6. The swirl-mixing ejector for an air flotation machine according to claim 1, characterized in that: End covers (13) are detachably fixedly mounted on both ends of the mixing cylinder (11), and an air inlet pipe (14) and a water discharge pipe (15) are fixedly connected to and communicate with the two end covers (13).

7. The swirl-mixing ejector for an air flotation machine according to claim 1, characterized in that: A sealing ring (211) is installed on the air guide cylinder (21), and the outer side surface of the sealing ring (211) abuts against the inner side wall of the air intake pipe (14).

8. The swirl-mixing ejector for an air flotation machine according to claim 3, characterized in that: The oblique stirring arm (42) is slidably connected to the I-shaped cylinder (41), and a flow groove (422) is provided on the side of the oblique stirring arm (42); a sliding positioning arm (17) is fixedly installed between the limiting ridges (16) on both sides of the I-shaped cylinder (41), and the side of the sliding positioning arm (17) is in contact with the inner wall of the mixing cylinder (11), and the guide edge (171) of the side of the sliding positioning arm (17) can abut against the contact arc surface (421); a spring sheet (423) is fixedly installed between the oblique stirring arm (42) and the inner side surface of the I-shaped cylinder (41) for making the oblique stirring arm (42) always have a tendency to shrink toward the inside of the water storage chamber; When the contact arc surface (421) abuts against the inner side surface of the mixing cylinder (11), the circulation groove (422) shrinks into the water storage cavity; When the contact arc surface (421) and the inner side surface of the mixing cylinder (11) are out of contact, the circulation groove (422) connects the spaces on both sides of the water storage cavity.

9. The swirl-mixing ejector for an air flotation machine according to claim 1, characterized in that: The water inlet pipe (12) is arranged at the edge of the mixing cylinder (11), and its axis is tangent to the outer side wall of the I-shaped cylinder (41).

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