A vortex enhanced cutting structure of air flotation machine and air flotation machine

Abstract

The present invention discloses a flotation machine vortex enhancement cutting structure and an air flotation machine. A cutting structure is disclosed that provides different vortices through spoiler protrusions, cuts out finer bubbles through cutting holes, promotes the combination of bubbles and flocculants in sewage, and improves sewage treatment efficiency. It is characterized by being composed of rotating blades, spoiler protrusions and cutting holes, the rotating blades are arc-shaped plate structures that are bent multiple times, the angle of the side extension line at the bending point of the rotating blades is greater than 90 degrees, the edges of the rotating blades are rounded edges, the corners of the rotating blades are rounded, the surface of the rotating blades is smooth, the thickness of the rotating blades gradually decreases from one end to the other end, one end of the rotating blades is vertically connected to a rotating disc, two groups of spoiler protrusions are respectively arranged on the two sides of the rotating blades in a one-to-one correspondence, and the multiple rows of spoiler protrusions in the same group are the same size.

Description

Technical Field

[0001] The present invention discloses a flotation machine vortex enhanced cutting structure and an air flotation machine, which relate to a cutting structure used in a contact box on an air flotation machine, and belong to the technical field of sewage treatment, and particularly to a cutting structure which provides different vortices through spoiler protrusions, cuts out finer bubbles through cutting holes, promotes the combination of bubbles and flocculants in sewage, and improves sewage treatment efficiency. Background Art

[0002] Air flotation machine is a kind of equipment used for water treatment, mainly used in chemical plants, drinking water treatment, industrial wastewater treatment and other fields. Its working principle is to inject air or other gases into the water to generate a large number of tiny bubbles, and use these bubbles to adsorb impurities such as suspended matter, grease, etc. that are difficult to remove by natural sedimentation or floating in the water, so that they float on the water surface, thereby achieving solid-liquid separation. The traditional air flotation machine mainly includes components such as dosing device, dissolved air system, air flotation tank and scraping mechanism. The sewage first enters the reaction tank and mixes with the added flocculant to produce flocculation reaction, and then enters the contact tank to combine with the tiny bubbles in the dissolved air water to form floccules, enter the separation tank and float to the water surface to form scum, and finally the scum is scraped into the scum collection tank by the scraping mechanism for discharge. However, in traditional flotation machines, flocculants are added into the reaction tank through a dosing device. When the flocculants are added, they only exist in a certain position of the reaction tank, and the addition is uneven. Since the sewage continuously flows into the reaction tank at a certain flow rate, the sewage and the flocculant cannot fully contact each other before entering the next link, so that part of the sewage cannot be flocculated and floccules cannot be produced, resulting in low sewage treatment efficiency and poor treatment effect; and the tiny bubbles generated in the dissolved air system are also only concentrated in a certain position of the contact tank and cannot quickly diffuse to various areas of the contact tank, resulting in some floccules cannot be fully bonded with the tiny bubbles and cannot produce scum, resulting in low sewage treatment efficiency and poor treatment effect.

[0003] Announcement No. CN217895336U discloses a flotation machine with a sludge dewatering device, including an equipment body, the equipment body is divided into a dosing pretreatment unit, a flotation reaction treatment unit and a sludge dewatering treatment unit by a stainless steel partition, the dosing pretreatment unit includes a coagulant dosing reaction zone and a coagulant dosing reaction zone, the flotation reaction treatment unit is provided with a perforated water distribution pipeline, a dissolved air releaser, a mud discharge pipeline, an emptying pipeline, a slag scraping device, and a slag collection tank, and the sludge dewatering treatment unit includes a dehydration rotating motor and a dewatering tank. The above-mentioned flotation machine is provided with a coagulant dosing reaction zone agitator and a coagulant dosing reaction agitator, which can promote the full contact between sewage and flocculants and produce more floccules, but the tiny bubbles generated by the dissolved air tank in the above-mentioned flotation machine are only concentrated at a certain position of the equipment body through the dissolved air releaser, and cannot be quickly diffused to various areas of the equipment body, resulting in that some floccules cannot be fully bonded with the tiny bubbles and cannot produce slag, thereby resulting in low sewage treatment efficiency and poor treatment effect.

[0004] The applicant has designed a flotation machine to solve the above problems. The flocculant is fully contacted with sewage through a flocculation component to produce floccules. The floccules with a density less than that of water are fully bonded with tiny bubbles through a contact component to form floccules. Finally, the separation component realizes solid-liquid separation. The flotation machine stirs the bubbles through arc-shaped rotating blades to mix the bubbles and sewage evenly. However, the rotating blades can only stir the sewage and bubbles, but cannot further process the bubbles. The treatment effect on the bubbles is not good. In addition, the surface of the blades is smooth. When the rotating blades rotate to disturb and stir the sewage, the disturbance effect is not good, which affects the sewage treatment efficiency. Summary of the invention

[0005] In order to improve the above situation, the present invention provides a flotation machine vortex enhanced cutting structure and an air flotation machine, which provides different vortices through spoiler protrusions, cuts out finer bubbles through cutting holes, promotes the combination of bubbles and flocculants in sewage, and improves the sewage treatment efficiency.

[0006] The present invention provides an air flotation machine vortex enhanced cutting structure and an air flotation machine as follows: The present invention provides an air flotation machine vortex enhanced cutting structure comprising rotating blades, spoiler protrusions and cutting holes. The rotating blades are curved plate structures that are bent multiple times. The angle of the extended line of the side of the rotating blade at the bend is greater than 90 degrees, Preferably, the edges of the rotating blades are rounded edges. Preferably, the corners of the rotating blades are rounded. The surface of the rotating blade is smooth. Preferably, the thickness of the rotating blade gradually decreases from one end to the other end. One end of the rotating blade is vertically connected to the rotating disc. Two sets of spoiler ridges are placed on the two sides of the rotating blades in a one-to-one correspondence. Preferably, the spoiler protrusion is in a quarter spherical structure, a group of the spoiler protrusions has multiple rows, and the multiple rows of the spoiler protrusions in the same group are arranged equidistantly along the length direction of the rotating blade, a row of the spoiler protrusions has multiple spoilers, and the multiple spoiler protrusions in the same row are arranged equidistantly along the width direction of the rotating blade, Preferably, the spoiler protrusions in multiple rows in the same group have the same size. The spoiler protrusion is provided with a plurality of cutting holes, wherein the cutting holes are elliptical holes. A group of cutting holes has a plurality of holes. Preferably, the plurality of groups of cutting holes are equidistantly distributed on the spoiler protrusion in the circumferential direction, and the plurality of cutting holes in the same group are equidistantly distributed on the spoiler protrusion in the axial direction. Preferably, two adjacent groups of cutting holes are arranged in a staggered manner. Preferably, the wall of the cutting hole is rough; Furthermore, the number of the spoiler protrusions in the multiple columns in the same group decreases successively along the length direction of the rotating blade, and the size of the spoiler protrusions in the multiple columns in the same group decreases successively along the length direction of the rotating blade; Furthermore, a plurality of cutting blades are provided on one side of the rotating blade, the thickness of the cutting blades gradually decreases from one end to the other end, the length of the cutting blades is consistent with the length of the rotating blades, and the cutting blades and the spoiler protrusions are arranged alternately; Furthermore, the rotating blade is composed of a filter layer, a guide groove layer and a frame, the filter layer is a filter with smaller filter holes, the guide groove layer is provided with a plurality of rectangular guide grooves, the inner wall of the guide groove is rough, the length of the guide groove is less than the length of the rotating blade, and the inner wall of the frame is engaged with the outer wall of the filter layer and the guide groove layer; Further, the rotating blade is formed by splicing two arc-shaped plates, and the rotating blade is divided into a first arc-shaped plate and a second arc-shaped plate, one end of the first arc-shaped plate is connected to the rotating disc, the other end of the first arc-shaped plate is provided with a connecting protrusion, the connecting protrusion is provided with a plurality of connecting grooves, the shape of the connecting groove is a linear or arc-shaped structure, one end of the second arc-shaped plate is provided with a connecting groove, the connecting groove is provided with a connecting groove corresponding to the connecting protrusion, and the connecting grooves on the connecting protrusion and the connecting groove are connected to each other through a connecting piece corresponding to the connecting groove; The present invention also relates to an air flotation machine, which is composed of a separation component, a contact component and a flocculation component. The separation assembly is composed of a separation tank, a water outlet pipe, a filter screen, a slag discharge port, a slag collection tank, a support frame, a first connecting rod, a second connecting rod, a scraper plate, a third rotating motor and a support column. The separation tank is an arched structure with an open top. The slag collecting pool is a fan-shaped structure with an opening at the top. The two ends of the separation tank are in contact with the two ends of the slag collecting tank respectively, and the separation tank and the slag collecting tank form a ring structure. The top height of the separation tank is greater than or equal to the top height of the slag collection tank. The bottom surface of the slag collecting pool is provided with a slag discharge port. A plurality of support columns are located in the middle of the annular structure, and one end of each support column is inserted into the ground. Preferably, the plurality of support columns are arranged equidistantly along the circumference of the middle portion of the annular structure. The bottom of the support frame is placed at the other end of the plurality of support columns. The support frame is a hollow circular ring structure composed of a plurality of supporting round rods, and the middle part of the top surface of the support frame is a disc-shaped structure. The third rotating motor is placed in the middle of the top surface of the support frame, One end of the first connecting rod is connected to the motor shaft of the third rotating motor, The angle between one end of the first connecting rod and the motor shaft of the third rotating motor is 90 degrees. The other end of the first connecting rod is vertically placed on one end of the second connecting rod. The scraper plate is laterally located in the separation tank, and the bottom height of the scraper plate is greater than or equal to the top height of the slag collecting tank. Preferably, the two ends of the scraper plate are in contact with the two inner side surfaces of the separation tank respectively. The other end of the second connecting rod is placed on the top surface of the scraper plate. Preferably, the second connecting rod is a retractable structure. One end of the water outlet pipe is placed on one side of the separation tank and is connected to the separation tank. The filter screen is placed at one end of the water outlet pipe, and the diameter of the filter screen is equal to the inner diameter of the water outlet pipe. The contact assembly is composed of a contact box, a blower, an air inlet pipe, a connecting pipe, an air inlet branch pipe, a disc aerator, a second rotating motor, a support rod, a rotating disc, rotating blades and a sewage pipe. The contact box is located in the middle of the plurality of support columns. The second rotating motor is placed in the middle of the inner bottom surface of the contact box. The support rod is located in the contact box. The length of the support rod is smaller than the height of the contact box. One end of the support rod is connected to the motor shaft of the second rotating motor, A rotating disc is sleeved on the side of the support rod. Preferably, there are multiple rotating discs, and the multiple rotating discs are arranged equidistantly along the length direction of the support rod. The side of the rotating disc is provided with rotating blades. Preferably, there are a plurality of rotating blades, and the plurality of rotating blades are arranged equidistantly along the circumferential direction of the side surface of the rotating disk. Preferably, the rotating blade is an arc-shaped structure. The blower is located outside the contact box. One end of the air inlet pipe is connected to the air outlet of the blower and communicates with the air outlet of the blower. The connecting pipe is placed on the inner bottom surface of the contact box. The connecting pipe is a closed structure at both ends. Preferably, the connecting pipe is parallel to a side surface of the contact box and close to a side surface of the contact box. Preferably, the length of the connecting pipe is equal to the length of one side of the contact box. The other end of the air inlet pipe passes through a through hole opened at the bottom of one side of the contact box and is placed on the side of one end of the connecting pipe, and is connected to the side of one end of the connecting pipe. One end of the intake branch pipe is vertically placed on the side of the connecting pipe. The air intake branch pipe is a structure with a closed end. Preferably, there are multiple intake branch pipes, and the multiple intake branch pipes are arranged equidistantly along the length direction of the side surface of the connecting pipe. Preferably, the length of the air intake branch pipe is equal to the length of the other side of the contact box. The disc aerator is placed on the top side of the air inlet branch pipe. Preferably, there are a plurality of the disc aerators, and the plurality of the disc aerators are arranged equidistantly along the length direction of the air inlet branch pipe. One end of a sewage pipe is disposed on the side of the contact box, and one end of the sewage pipe is connected to the contact box. One end of the sewage pipe is close to the top surface of the contact box. The other end of the sewage pipe passes through a through hole opened on the other side of the separation tank and is located on the inner bottom surface of the separation tank. The flocculation assembly is composed of a first rotating motor, a dosing hopper, a sewage inlet pipe, a rotating rod, a spiral blade, a flocculation box and a water outlet. The flocculation box is placed on the top surface of the contact box. One end of the dosing hopper is placed on the top surface of the flocculation box and is connected to the flocculation box. Preferably, the diameter of the dosing hopper remains unchanged from one end to one third of the diameter, and gradually increases from one third of the diameter to the other end. The first rotating motor is placed in the middle of the top surface of the flocculation box. The rotating rod is placed in the flocculation box. One end of the rotating rod is connected to the motor shaft of the first rotating motor through a through hole opened in the middle of the flocculation box. The length of the rotating rod is smaller than the height of the flocculation box. The spiral blade is placed on the side of the rotating rod. Preferably, the length of the spiral blade is equal to the length of the rotating rod. Preferably, a plurality of spoiler protrusions are evenly arranged on the spiral blade. One end of the sewage inlet pipe is placed on one side of the flocculation box and is connected to the flocculation box. The bottom surface of the flocculation box is provided with a water outlet hole, and the water outlet hole is located at the side of the bottom surface of the flocculation box; Furthermore, the rotating blades are provided with flow-turbulating holes; Preferably, there are multiple groups of spoiler holes, and the multiple groups of spoiler holes are equidistantly arranged along the length direction of the rotating blade. There are multiple spoiler holes in each group, and the multiple spoiler holes are equidistantly arranged along the width direction of the rotating blade. Furthermore, the rotating blades are provided with spoiler strips; Preferably, the length of the spoiler strip is equal to the width of the rotating blade, there are a plurality of spoiler strips, and each of the spoiler strips is located between two adjacent groups of spoiler holes.

[0007] Beneficial Effects

[0008] 1. By using the flow-disturbing protrusions to disturb the flocs and bubbles, different vortices can be provided to improve the sewage treatment efficiency.

[0009] 2. Cut the bubbles by cutting holes to make them finer and promote the combination of bubbles and flocculants in sewage.

[0010] 3. Simple structure, convenient and practical.

[0011] 4. Low cost and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an air flotation machine of the present invention; Figure 2 A three-dimensional structural diagram of an air flotation machine of the present invention; Figure 3This is a three-dimensional structural diagram of an air flotation machine of the present invention, which only shows the structure of the filter screen; Figure 4 This is a three-dimensional structural diagram of an air flotation machine of the present invention, which only shows the internal structures of the flocculation box and the contact box; Figure 5 It is a three-dimensional structural diagram of embodiment 2 of an air flotation machine of the present invention; Figure 6 It is a three-dimensional structural diagram of Example 3 of an air flotation machine of the present invention; Figure 7 A three-dimensional structural diagram of a vortex-enhanced cutting structure of an air flotation machine according to the present invention; Figure 8 This is a three-dimensional structural diagram of a vortex-enhanced cutting structure of an air flotation machine of the present invention, which only shows the structure of the spoiler protrusion; Fig. 9 It is a three-dimensional structural diagram of Example 2 of an air flotation machine vortex enhanced cutting structure of the present invention; Fig.10 It is a three-dimensional structural diagram of Example 3 of an air flotation machine vortex enhanced cutting structure of the present invention; Fig.11 It is a three-dimensional structural diagram of Example 4 of an air flotation machine vortex enhanced cutting structure of the present invention; Fig.12 It is a three-dimensional structural diagram of Example 5 of an air flotation machine vortex enhanced cutting structure of the present invention.

[0014] In the attached figure

[0015] The invention comprises: a separation tank (1), a support frame (2), a first connecting rod (3), a scraper plate (4), a slag discharge port (5), a sewage inlet pipe (6), a slag collecting tank (7), a water outlet pipe (8), a sewage discharge pipe (9), a third rotating motor (10), a first rotating motor (11), a dosing hopper (12), a second connecting rod (13), a supporting column (14), a flocculation box (15), a filter screen (16), a contact box (17), a spiral blade (18), a rotating rod (19), a blower (20), an air inlet pipe (21), and a connecting pipe (22). , an air inlet branch pipe (23), a disc aerator (24), a second rotating motor (25), a support rod (26), a rotating disc (27), a rotating blade (28), a water outlet hole (29), a spoiler hole (30), a spoiler strip (31), a spoiler protrusion (32), a cutting hole (33), a cutting blade (34), a filter layer (35), a guide groove layer (36), a frame (37), a first arc plate (38), a second arc plate (39), a connecting protrusion (40), a connecting groove (41), a connecting groove (42), and a connecting member (43). DETAILED DESCRIPTION

[0017] Embodiment 1: The present invention discloses an air flotation machine vortex enhancement cutting structure, which comprises a rotating blade (28), a spoiler protrusion (32) and a cutting hole (33). The rotating blade (28) is a multi-bent arc-shaped plate structure. The angle of the extended line of the side of the rotating blade (28) at the bend is greater than 90 degrees. Preferably, the edges of the rotating blades (28) are rounded edges. Preferably, the corners of the rotating blade (28) are rounded. The surface of the rotating blade (28) is smooth. Preferably, the thickness of the rotating blade (28) gradually decreases from one end to the other end. One end of the rotating blade (28) is vertically connected to the rotating disc (27). Two groups of spoiler protrusions (32) are respectively disposed on two side surfaces of the rotating blade (28) in a one-to-one correspondence. Preferably, the spoiler protrusion (32) has a quarter-spherical structure, a group of the spoiler protrusions (32) has multiple rows, and the multiple rows of the spoiler protrusions (32) in the same group are arranged equidistantly along the length direction of the rotating blade (28); a row of the spoiler protrusions (32) has multiple spoiler protrusions (32), and the multiple spoiler protrusions (32) in the same row are arranged equidistantly along the width direction of the rotating blade (28). Preferably, the multiple rows of spoiler protrusions (32) in the same group have the same size. The spoiler protrusion (32) is provided with a plurality of cutting holes (33), wherein the cutting holes (33) are elliptical holes. A group of cutting holes (33) has a plurality of Preferably, the plurality of groups of cutting holes (33) are circumferentially and equidistantly distributed on the spoiler protrusion (32), and the plurality of cutting holes (33) in the same group are axially and equidistantly distributed on the spoiler protrusion (32). Preferably, two adjacent groups of cutting holes (33) are arranged in a staggered manner. Preferably, the wall of the cutting hole (33) is rough; When in use, sewage enters the contact box (17) from the flocculation box (15), and the second rotary motor (25) drives the rotary blade (28) to rotate. During the flow of sewage, the sewage is subjected to the resistance of the flow-disturbing protrusion (32), and is diverted and flows through the two sides of the flow-disturbing protrusion (32). Part of the water flow is mixed with bubbles and passes through the cutting hole (33), so that the bubbles are cut more densely, and the combination of bubbles and flocculants in the sewage is promoted. The distribution of water flow and bubbles on the surface of the rotary blade (28) can be improved, the turbulence intensity can be reduced, the energy loss can be reduced, and the mixing efficiency can be improved.

[0018] Embodiment 2: The difference between this embodiment and embodiment 1 is that: the number of the multiple rows of the flow-disturbing protrusions (32) in the same group decreases successively along the length direction of the rotating blade (28), and the size of the multiple rows of the flow-disturbing protrusions (32) in the same group decreases successively along the length direction of the rotating blade (28); larger flow-disturbing protrusions (32) can more effectively guide the flow of sewage and bubbles, while smaller protrusions can reduce friction with the water flow and reduce stirring power consumption; and protrusions of different sizes and numbers can affect the flow trajectory of the water flow in the stirring area to different degrees, so that the bubbles can be more evenly distributed in the contact box (17), thereby improving the stirring quality.

[0019] Embodiment 3: The difference between this embodiment and embodiment 1 is that: a plurality of cutting blades (34) are provided on one side of the rotating blade (28); the thickness of the cutting blade (34) gradually decreases from one end to the other end; the length of the cutting blade (34) is consistent with the length of the rotating blade (28); the cutting blade (34) and the spoiler protrusion (32) are arranged in a staggered manner; when in use, a uniform cutting effect can be ensured on the entire surface, the cutting efficiency of the rotating blade (28) can be effectively improved, the wear of a single cutting blade (34) can be reduced, and the overall service life of the rotating blade (28) can be extended.

[0020] Embodiment 4: The difference between this embodiment and the first embodiment is that the rotating blade (28) is composed of a filter screen layer (35), a guide groove layer (36) and a frame (37); the filter screen layer (35) is a filter screen with relatively small filter holes; the guide groove layer (36) is provided with a plurality of rectangular guide grooves; the inner wall of the guide groove is rough; the length of the guide groove is less than the length of the rotating blade (28); the inner wall of the frame (37) is engaged with the outer wall of the filter screen layer (35) and the guide groove layer (36); when in use, the filter screen facilitates cutting of bubbles; the guide groove helps guide water flow to pass through the blade smoothly, thereby reducing resistance and energy consumption; the frame (37) increases the stability and strength of the blade, prevents deformation or damage, and prolongs the service life; the design formed by the combination of the three makes the blade easier to clean and maintain, and is convenient for regular inspection and maintenance.

[0021] Embodiment 5: The difference between this embodiment and the first embodiment is that: the rotating blade (28) is formed by splicing two arc-shaped plates, the rotating blade (28) is divided into a first arc-shaped plate (38) and a second arc-shaped plate (39), one end of the first arc-shaped plate (38) is connected to the rotating disc (27), the other end of the first arc-shaped plate (38) is provided with a connecting protrusion (40), the connecting protrusion (40) is provided with a plurality of connecting grooves (41), the shape of the connecting grooves (41) is a linear or arc-shaped structure, one end of the second arc-shaped plate (39) is provided with a connecting groove (42), the connecting groove (42) is provided with a connecting groove (41) corresponding to the connecting protrusion (40), the connecting protrusion (40) and the connecting groove (41) on the connecting recess are connected to each other through a connecting piece (43) corresponding to the connecting groove (41); the adjusting and combining can be performed conveniently according to the needs, the storage and transportation space of the blades can be effectively saved, the stability and durability of the blades can be increased, and the service life of the blades can be extended.

[0022] The rotating blade (28) is designed as a multi-bend arc-shaped plate structure, which can reduce the resistance of the water flow, make the rotation smoother, increase the contact area between the sewage, flocs, bubbles and the rotating blade (28), and improve the efficiency of floc production; The edges of the rotating blades (28) are rounded edges. The rounded corners of the rotating blades (28) avoid fluid separation and turbulence at sharp corners, which helps to reduce resistance and improve the efficiency of the rotating blades (28). The rounded edges can guide the direction of the water flow more smoothly, making the movement of the airflow on the surface of the blades more stable. The thickness of the rotating blade (28) is designed to gradually decrease from one end to the other end, so that when the sewage and the bubbles pass through the rotating blade (28), the sewage and the bubbles flow more smoothly, reducing the friction between the sewage and the bubbles and the blade, reducing the overall weight of the equipment, and reducing the manufacturing cost; The design of the spoiler protrusion (32) in a quarter-spherical structure can more effectively separate the water flow and reduce the turbulence of the sewage, thereby reducing the resistance and improving the stability of the sewage and bubbles when flowing through the spoiler protrusion (32); The cutting hole (33) is designed as an elliptical hole, which can reduce the accumulation or blockage of floccules in the hole, prolong the service life of the flow-disturbing protrusion (32), and can effectively cut bubbles of different sizes, making the bubbles finer, and promoting the combination of bubbles and floccules in sewage; A plurality of groups of cutting holes (33) are equidistantly distributed on the spoiler protrusion (32) in the circumferential direction, a plurality of cutting holes (33) in the same group are equidistantly distributed on the spoiler protrusion (32) in the axial direction, and two adjacent groups of cutting holes (33) are designed to be staggered, so that the flocs and bubbles are fully disturbed in different directions, so that the flocs and bubbles react more fully, and more flocs are generated; The rough design of the hole wall of the cutting hole (33) can increase the friction between the flocs, bubbles and the hole wall of the cutting hole (33), thereby enhancing the shear force of the flocs and bubbles, and can increase the contact area between the flocs, bubbles and the cutting hole (33), so that the flocs and bubbles are mixed more evenly, and more flocs are produced.

[0023] The purpose of providing different vortices through the flow-disturbing protrusions (32) and cutting out finer bubbles through the cutting holes (33) is achieved, thereby promoting the combination of bubbles with flocculants in sewage and improving sewage treatment efficiency.

[0024] It should be noted that the vortex enhanced cutting structure is applicable to the following air flotation machines: The present invention also relates to an air flotation machine, which is composed of a separation component, a contact component and a flocculation component. The separation assembly comprises a separation tank (1), a water outlet pipe (8), a filter screen (16), a slag discharge port (5), a slag collection tank (7), a support frame (2), a first connecting rod (3), a second connecting rod (13), a slag scraper (4), a third rotating motor (10) and a support column (14). The separation tank (1) is an arched structure with an open top. The slag collecting pool (7) is a fan-shaped structure with an opening at the top. The two ends of the separation pool (1) are in contact with the two ends of the slag collection pool (7) respectively, and the separation pool (1) and the slag collection pool (7) form a ring structure. The top height of the separation tank (1) is greater than or equal to the top height of the slag collection tank (7), The bottom surface of the slag collecting pool (7) is provided with a slag discharge port (5). A plurality of support columns (14) are located in the middle of the annular structure, and one end of each support column (14) is inserted into the ground. Preferably, the plurality of support columns (14) are arranged equidistantly along the circumference of the middle portion of the annular structure. The bottom of the support frame (2) is placed at the other end of the plurality of support columns (14). The support frame (2) is a hollow circular ring structure composed of a plurality of supporting round rods, and the middle part of the top surface of the support frame (2) is a disc-shaped structure. The third rotating motor (10) is placed in the middle of the top surface of the support frame (2). One end of the first connecting rod (3) is connected to the motor shaft of the third rotating motor (10). The angle between one end of the first connecting rod (3) and the motor shaft of the third rotating motor (10) is 90 degrees. The other end of the first connecting rod (3) is vertically placed on one end of the second connecting rod (13). The scraper plate is laterally located in the separation tank (1), and the bottom height of the scraper plate is greater than or equal to the top height of the slag collecting tank (7). Preferably, the two ends of the scraper plate are in contact with the two inner side surfaces of the separation tank (1) respectively. The other end of the second connecting rod (13) is placed on the top surface of the scraper plate (4). Preferably, the second connecting rod (13) is a retractable structure. One end of the water outlet pipe (8) is placed on a side of the separation tank (1) and is connected to the separation tank (1). The filter screen (16) is placed at one end of the water outlet pipe (8), and the diameter of the filter screen (16) is equal to the inner diameter of the water outlet pipe (8). The contact assembly is composed of a contact box (17), a blower (20), an air intake pipe (21), a connecting pipe (22), an air intake branch pipe (23), a disc aerator (24), a second rotating motor (25), a support rod (26), a rotating disc (27), rotating blades (28) and a sewage discharge pipe (9). The contact box (17) is located in the middle of the plurality of support columns (14). The second rotating motor (25) is placed in the middle of the inner bottom surface of the contact box (17). The support rod (26) is located inside the contact box (17). The length of the support rod (26) is smaller than the height of the contact box (17). One end of the support rod (26) is connected to the motor shaft of the second rotating motor (25). A rotating disc (27) is sleeved on the side of the support rod (26). Preferably, there are a plurality of rotating discs (27), and the plurality of rotating discs (27) are arranged at equal distances along the length direction of the support rod (26). The side of the rotating disc (27) is provided with rotating blades (28). Preferably, there are a plurality of rotating blades (28), and the plurality of rotating blades (28) are arranged equidistantly along the circumferential direction of the side surface of the rotating disk (27). Preferably, the rotating blade (28) is an arc-shaped structure. The blower (20) is located outside the contact box (17). One end of the air inlet pipe (21) is connected to the air outlet of the blower (20), and is in communication with the air outlet of the blower (20). The connecting pipe (22) is placed on the inner bottom surface of the contact box (17). The connecting pipe (22) is a structure with both ends closed. Preferably, the connecting pipe (22) is parallel to a side surface of the contact box (17) and is close to a side surface of the contact box (17). Preferably, the length of the connecting pipe (22) is equal to the length of one side of the contact box (17). The other end of the air inlet pipe (21) passes through a through hole opened at the bottom of one side of the contact box (17) and is placed on the side of one end of the connecting pipe (22), and is connected to the side of one end of the connecting pipe (22). One end of the air intake branch pipe (23) is vertically placed on the side of the connecting pipe (22). The air intake branch pipe (23) is a structure with the other end being closed. Preferably, there are a plurality of the air intake branch pipes (23), and the plurality of the air intake branch pipes (23) are arranged equidistantly along the length direction of the side surface of the connecting pipe (22). Preferably, the length of the air intake branch pipe (23) is equal to the length of the other side surface of the contact box (17). The disc aerator (24) is placed on the top side of the air inlet branch pipe (23). Preferably, there are a plurality of the disc aerators (24), and the plurality of the disc aerators (24) are arranged equidistantly along the length direction of the air inlet branch pipe (23). One end of a sewage discharge pipe (9) is disposed on the side surface of the contact box (17) in correspondence with each other, and one end of the sewage discharge pipe (9) is connected to the contact box (17). One end of the sewage discharge pipe (9) is close to the top surface of the contact box (17). The other end of the sewage discharge pipe (9) passes through a through hole opened on the other side of the separation tank (1) and is located on the inner bottom surface of the separation tank (1). The flocculation assembly is composed of a first rotating motor (11), a dosing hopper (12), a sewage inlet pipe (6), a rotating rod (19), a spiral blade (18), a flocculation box (15), and a water outlet hole (29). The flocculation box (15) is placed on the top surface of the contact box (17). One end of the dosing hopper (12) is placed on the top surface of the flocculation box (15) and is connected to the flocculation box (15). Preferably, the diameter of the dosing hopper (12) remains unchanged from one end to one third of the diameter, and gradually increases from one third of the diameter to the other end. The first rotating motor (11) is placed in the middle of the top surface of the flocculation box (15). The rotating rod (19) is placed in the flocculation box (15). One end of the rotating rod (19) is connected to the motor shaft of the first rotating motor (11) through a through hole opened in the middle of the flocculation box (15). The length of the rotating rod (19) is smaller than the height of the flocculation box (15). The spiral blade (18) is placed on the side of the rotating rod (19). Preferably, the length of the spiral blade (18) is equal to the length of the rotating rod (19). Preferably, a plurality of flow-disturbing protrusions (32) are evenly arranged on the spiral blade (18). One end of the sewage inlet pipe (6) is placed on a side of the flocculation box (15) and is connected to the flocculation box (15). The bottom surface of the flocculation box (15) is provided with a water outlet hole (29), and the water outlet hole (29) is located on the side edge of the bottom surface of the flocculation box (15); Preferably, the air flotation machine is installed on the ground via a bracket, and the support column (14) is inserted into the ground for fixing. When in use, sewage first enters the flocculation box (15) through the sewage inlet pipe (6), and the flocculant is added to the flocculation box (15) from the dosing hopper (12). The first rotating motor (11) is started, and the first rotating motor (11) drives the rotating rod (19) to rotate. The rotating rod (19) drives the spiral blade (18) to rotate, so that the sewage and the flocculant are fully in contact, a flocculation reaction occurs, and floccules are formed; then the floccules and sewage enter the contact box (17) through the water outlet hole (29). The blower (20) is started, and the gas in the blower (20) enters the connecting pipe (22) from the air inlet pipe (21), enters the plurality of air inlet branches (23) from the connecting pipe (22), and enters the aeration generator from the air inlet branches (23). The aeration generator generates a large number of tiny bubbles, and the second rotating motor (25) is started. The second rotating motor (25) drives the support rod (26) to rotate, and the support rod (26) drives the rotating disk (27) and the rotating blades (28) to rotate, so that the tiny bubbles are generated. The bubbles are evenly distributed in various areas in the contact box (17), so that the flocs with a density less than that of water are fully bonded to the tiny bubbles to form flocs. Finally, the flocs and sewage enter the separation tank (1) through the sewage discharge pipe (9). The flocs float to the water surface of the separation tank (1) under the action of buoyancy to form scum. When the sewage in the separation tank (1) reaches the height of the scraper plate, the third rotating motor (10) is started. The third rotating motor (10) drives the first connecting rod (3) to rotate. The first connecting rod (3) drives the second connecting rod (13) to rotate. The second connecting rod (13) drives the scraper plate (4) to rotate along the circumference of the separation tank (1) to scrape the scum on the water surface of the separation tank (1) into the scum collecting tank (7) and discharge it through the scum discharge hole to achieve solid-liquid separation. The water after solid-liquid separation is further filtered through the filter screen (16) of the outlet pipe (8) and discharged from the outlet pipe (8). The sewage is treated, the sewage treatment efficiency is improved, and the sewage treatment effect is better. Furthermore, the rotating blade (28) is provided with a flow disturbance hole (30), and the flow disturbance hole (30) comprises a plurality of groups, and the plurality of groups of flow disturbance holes (30) are arranged equidistantly along the length direction of the rotating blade (28), and each group comprises a plurality of flow disturbance holes (30), and the plurality of flow disturbance holes (30) are arranged equidistantly along the width direction of the rotating blade (28). When in use, the flow disturbance holes (30) can further increase the contact area between the rotating blade (28) and the sewage entering the contact box (17), and stir the sewage, so that the tiny bubbles generated by the disc aerator (24) are evenly distributed in various areas of the contact box (17) under the action of the water flow, so that the flocs having a density less than that of water are fully bonded to the tiny bubbles, so that more scum is generated, and the sewage treatment efficiency and effect are better. Furthermore, a spoiler strip (31) is disposed on the rotating blade (28), the length of the spoiler strip (31) being equal to the width of the rotating blade (28), and there are a plurality of spoiler strips (31), each of which is located between two adjacent groups of spoiler holes (30); when in use, the spoiler strip (31) and the spoiler holes (30) can further increase the contact area between the rotating blade (28) and the sewage entering the contact box (17), thereby stirring the sewage, and enabling the tiny bubbles generated by the disc aerator (24) to be evenly distributed in various areas of the contact box (17) under the action of the water flow, so that the flocs having a density less than that of water are fully bonded to the tiny bubbles, thereby generating more scum and achieving better sewage treatment efficiency and effect; The second connecting rod (13) is designed as a retractable structure. The height of the scraper plate (4) is adjusted by the second connecting rod (13) according to the height of the water surface of the separation tank (1), so that the scraper plate (4) can scrape the water surface of the separation tank (1) at different heights, thereby achieving a better scraping effect. The design in which the two ends of the scraper plate are in contact with the two inner side surfaces of the separation tank (1) respectively can increase the contact area between the scraper plate (4) and the scum floating on the water surface of the separation tank (1), thereby improving the scraping efficiency of the scraper plate (4); The diameter of the dosing hopper (12) remains constant from one end to one third of the diameter, and gradually increases from the one third of the diameter to the other end, so that the flocculant can more easily enter the flocculation box (15) through the dosing hopper (12); The design of evenly disposing a plurality of flow-disturbing protrusions (32) on the spiral blade (18) can further increase the stirring effect of the spiral blade (18) on the sewage and the flocculant entering the flocculation box, so that the sewage and the flocculant can be more fully contacted, a flocculation reaction occurs, and more flocs are formed; The separation tank (1) and the slag collection tank (7) form a ring-shaped structure, and the contact component and the flocculation component are located in the middle of the ring-shaped structure. The flotation machine is more integrated as a whole, occupies a smaller area, and can be used in places with limited space. The design of the separation tank (1) and the slag collection tank (7) forming an annular structure can effectively improve the dynamic characteristics of the sewage flow, so that the sewage forms a circulation between the separation tank (1) and the slag collection tank (7), thereby obtaining a more stable fluid motion state, thereby reducing the drift of micro-bubbles in the separation tank (1), increasing the residence time of micro-bubbles, facilitating the contact between micro-bubbles and suspended particles in the water, facilitating the separation and collection of slag, and improving the treatment efficiency of the flotation machine; The separation tank (1) and the slag collection tank (7) form a ring-shaped structure, which can extend the flow path of the sewage, so that the sewage can be discharged from the flotation machine after being fully treated, thereby reducing the risk of short-circuiting and improving the treatment effect of the flotation machine; The design of the separation tank (1) and the slag collection tank (7) forming an annular structure can prolong the residence time of sewage in the annular separation tank (1), so that suspended particles and flocs in the water have more time to float up to become scum or settle to become sludge, thereby achieving a better solid-liquid separation effect.

[0025] The flocculation component is used to make the sewage fully contact with the flocculant, so as to produce more flocs. The contact component is used to make the flocs and tiny bubbles fully bonded, so as to produce more scum. The separation component is used to achieve solid-liquid separation, so as to improve the efficiency and effect of sewage treatment.

[0026] After considering the specification and practicing the invention disclosed herein, those skilled in the art will easily think of other similar embodiments of the present invention. This application is intended to cover any modified uses or adaptive changes of the present invention. These modifications or uses, applicability changes follow the general principles of the present invention and include common knowledge or customary technical means in the technical field that are not disclosed in the present invention.

[0027] It should be noted that, for the sake of simplicity, the specific implementation mode of the present invention describes the data processing process of the controller as a series of action combinations. However, those skilled in the art should know that the present invention is not limited to the described actions, because according to the present invention, certain steps can be performed sequentially or simultaneously. Secondly, those skilled in the art should also know that the actions described and involved in the specification are not necessarily required by the present invention. The described contents are only preferred implementation cases of the present invention and cannot be considered to limit the scope of implementation of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation modes and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. An air flotation machine vortex enhanced cutting structure, characterized by: The invention is composed of rotating blades, spoiler protrusions and cutting holes. The rotating blades are arc-shaped plate structures with multiple bends, which can reduce the resistance of water flow and make the rotation smoother. The contact area between sewage, flocs, bubbles and the rotating blades can be increased, and the efficiency of bubble floc production can be improved. The edges of the rotating blades are rounded edges, and the corners of the rotating blades are rounded, which avoids fluid separation and turbulence at sharp corners, helps to reduce resistance and improve the efficiency of rotation of the rotating blades. The rounded edges can guide the direction of water flow more smoothly, making the movement of airflow on the surface of the fan blades more stable. One end of the rotating blade is vertically connected to the rotating disk, and two groups of spoiler protrusions are respectively arranged on the two sides of the rotating blade in a one-to-one manner. The multiple rows of spoiler protrusions in the same group are of the same size. The spoiler protrusions are provided with multiple groups of cutting holes, and the cutting holes are elliptical holes, and a group of cutting holes has multiple groups.

2. The vortex-enhanced cutting structure of an air flotation machine according to claim 1, characterized in that The number of the spoiler protrusions in the multiple columns in the same group decreases successively along the length direction of the rotating blade, and the size of the spoiler protrusions in the multiple columns in the same group decreases successively along the length direction of the rotating blade.

3. The vortex-enhanced cutting structure of an air flotation machine according to claim 1, characterized in that A plurality of cutting blades are arranged on one side of the rotating blade, the thickness of the cutting blades gradually decreases from one end to the other end, the length of the cutting blades is consistent with the length of the rotating blade, and the cutting blades and the spoiler protrusions are arranged alternately.

4. The vortex-enhanced cutting structure of an air flotation machine according to claim 1, characterized in that The rotating blade is composed of a filter layer, a guide groove layer and a frame. The filter layer is a filter with smaller filter holes. The guide groove layer has a plurality of rectangular guide grooves. The inner wall of the guide groove is rough. The length of the guide groove is smaller than the length of the rotating blade. The inner wall of the frame is engaged with the outer wall of the filter layer and the guide groove layer.

5. The air flotation machine vortex enhanced cutting structure according to claim 1, characterized in that The rotating blade is formed by splicing two arc-shaped plates, and the rotating blade is divided into a first arc-shaped plate and a second arc-shaped plate. One end of the first arc-shaped plate is connected to the rotating disc, and the other end of the first arc-shaped plate is provided with a connecting protrusion, and the connecting protrusion is provided with a plurality of connecting grooves, and the shape of the connecting groove is a linear or arc-shaped structure. One end of the second arc-shaped plate is provided with a connecting groove, and the connecting groove is provided with a connecting groove corresponding to the connecting protrusion, and the connecting grooves on the connecting protrusion and the connecting concave block are connected to each other through a connecting piece corresponding to the connecting groove.

6. The air flotation machine vortex enhanced cutting structure according to claim 1, characterized in that The angle of the extended line of the side of the rotating blade at the bending point is greater than 90 degrees.

7. The air flotation machine vortex enhanced cutting structure according to claim 1, characterized in that The surface of the rotating blade is smooth, and the thickness of the rotating blade gradually decreases from one end to the other end. When sewage and bubbles pass through the rotating blade, the sewage and bubbles flow more smoothly, reducing the friction between the sewage and bubbles and the blade, reducing the overall weight of the equipment, and reducing the manufacturing cost.

8. The air flotation machine vortex enhanced cutting structure according to claim 1, characterized in that The spoiler protrusions have a quarter-spherical structure. A group of spoiler protrusions has multiple rows. The multiple rows of spoiler protrusions in the same group are equidistantly arranged along the length direction of the rotating blade. A row has multiple spoiler protrusions. The multiple spoiler protrusions in the same row are equidistantly arranged along the width direction of the rotating blade. This can more effectively separate the water flow, reduce the turbulence of the sewage, thereby reducing the resistance and improving the stability of the sewage and bubbles when flowing through the spoiler protrusions.

9. The air flotation machine vortex enhanced cutting structure according to claim 1, characterized in that A plurality of groups of cutting holes are circumferentially and equidistantly distributed on the spoiler protrusion, and a plurality of cutting holes in the same group are axially and equidistantly distributed on the spoiler protrusion, so that the flocs and bubbles can be sufficiently disturbed in different directions, so that the flocs and bubbles can react more fully and more foam flocs can be produced; the two adjacent groups of cutting holes are staggered and the hole walls of the cutting holes are rough; the friction between the flocs, bubbles and the hole walls of the cutting holes can be increased, thereby enhancing the shear force of the flocs and bubbles, and the contact area between the flocs, bubbles and the cutting holes can be increased, so that the flocs and bubbles can be mixed more evenly and more foam flocs can be produced.

10. The air flotation machine vortex enhanced cutting structure according to claim 1, characterized in that The flotation machine is composed of a separation component, a contact component and a flocculation component. The separation component is composed of a separation tank, a water outlet pipe, a filter screen, a slag discharge port, a slag collection tank, a support frame, a first connecting rod, a second connecting rod, a slag scraper, a third rotating motor and a support column. The separation tank is an arched structure with an opening at the upper end, and the slag collection tank is a fan-shaped structure with an opening at the upper end. The two ends of the separation tank are respectively in contact with the two ends of the slag collection tank, and the separation tank and the slag collection tank form an annular structure. The top height of the separation tank is greater than or equal to the top height of the slag collection tank. A slag discharge port is provided on the bottom surface of the slag collection tank. A plurality of support columns are located in the middle of the annular structure, and one end of the support column is inserted into the ground. The plurality of support columns are arranged circumferentially along the middle of the annular structure. The third rotary motor is placed in the middle of the top surface of the support frame, one end of the first connecting rod is connected to the motor shaft of the third rotary motor, the angle between one end of the first connecting rod and the motor shaft of the third rotary motor is 90 degrees, the other end of the first connecting rod is vertically placed on one end of the second connecting rod, the scraping plate is horizontally located in the separation pool, and the bottom surface height of the scraping plate is greater than or equal to the top height of the slag collecting pool, the two ends of the scraping plate are respectively in contact with the two inner side surfaces of the separation pool, and the other end of the second connecting rod is placed in the middle of the top surface of the support frame. The top surface of the scraper plate, the second connecting rod is a retractable structure, one end of the water outlet pipe is placed on a side of the separation tank and is connected to the separation tank, the filter screen is placed at one end of the water outlet pipe, the diameter of the filter screen is equal to the inner diameter of the water outlet pipe, the contact assembly is composed of a contact box, a blower, an air intake pipe, a connecting pipe, an air intake branch pipe, a disc aerator, a second rotating motor, a support rod, a rotating disc, a rotating blade and a sewage pipe, the contact box is located in the middle of the multiple support columns, the second rotating motor is placed in the middle of the inner bottom surface of the contact box, the support rod is located in the contact box, the length of the support rod is less than the height of the contact box, one end of the support rod is connected to the motor shaft of the second rotating motor, and the support A rotating disc is sleeved on the side of the support rod, and there are multiple rotating discs, and the multiple rotating discs are arranged equidistantly along the length direction of the support rod. A rotating blade is arranged on the side of the rotating disc, and there are multiple rotating blades, and the multiple rotating blades are arranged equidistantly along the circumferential direction of the side of the rotating disc. The rotating blade is an arc-shaped structure. The blower is located on the outside of the contact box body, one end of the air inlet pipe is connected to the air outlet of the blower and communicated with the air outlet of the blower, and the connecting pipe is placed on the inner bottom surface of the contact box body. The connecting pipe is a closed structure at both ends, and the connecting pipe is parallel to one side of the contact box body and close to one side of the contact box body. The length of the connecting pipe is equal to the length of one side of the contact box body.The other end of the air intake pipe passes through a through hole opened at the bottom of one side of the contact box body and is placed on one end side of the connecting pipe and is connected to the side of one end of the connecting pipe. One end of the air intake branch pipe is vertically placed on the side of the connecting pipe, and the air intake branch pipe is a structure with a closed end at the other end. There are multiple air intake branch pipes, and the multiple air intake branch pipes are equidistantly arranged along the length direction of the side of the connecting pipe. The length of the air intake branch pipe is equal to the length of the other side of the contact box body. A disc aerator is placed on the top side of the air intake branch pipe. There are multiple disc aerators, and the multiple disc aerators are equidistantly arranged along the length direction of the air intake branch pipe. One end of the sewage pipe is respectively arranged on the side of the contact box body, and one end of the sewage pipe is connected to the contact box body. One end of the sewage pipe is close to the top surface of the contact box body, and the other end of the sewage pipe passes through the through hole opened on the other side of the separation tank and is located on the inner bottom surface of the separation tank. The flocculation component is driven by a first rotating motor, The invention comprises a dosing hopper, a sewage inlet pipe, a rotating rod, a spiral blade, a flocculation box and a water outlet. The flocculation box is placed on the top surface of the contact box. One end of the dosing hopper is placed on the top surface of the flocculation box and is connected to the flocculation box. The diameter of the dosing hopper remains unchanged from one end to one third of the flocculation box and gradually increases from one third of the flocculation box to the other end. The first rotating motor is placed in the middle of the top surface of the flocculation box. The rotating rod is placed in the flocculation box. One end of the rotating rod is connected to the motor shaft of the first rotating motor through a through hole opened in the middle of the flocculation box. The length of the rotating rod is less than the height of the flocculation box. The spiral blade is placed on the side of the rotating rod. The length of the spiral blade is equal to the length of the rotating rod. A plurality of flow-disturbing protrusions are evenly arranged on the spiral blade. One end of the sewage inlet pipe is placed on one side of the flocculation box and is connected to the flocculation box. A water outlet is opened on the bottom surface of the flocculation box. The water outlet is located on the side of the bottom surface of the flocculation box.

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