Air flotation machine dosing component and air flotation machine

Abstract

The present invention discloses a dosing component for an air flotation machine and an air flotation machine. A dosing component is disclosed. A high-pressure gas is ejected from a pressurized air pump to eject a medicine solution from a medicine discharge nozzle. A plurality of stirring blades are rotated to increase the contact area with the water flow. The height of the medicine storage box and the medicine discharge nozzle is adjusted by an electric telescopic rod, so that the medicine solution and the sewage can be fully stirred. The dosing component is characterized in that it is composed of a fixed component, an adjustment component and a spraying component. The fixed component is composed of a dosing hopper, a flocculation box, a sewage inlet pipe and a water outlet hole. The dosing hopper is placed on the top surface of the flocculation box, and the bottom of the dosing hopper corresponds to the medicine inlet pipe through the flocculation box. A sewage inlet is opened at the upper position of the side wall of the flocculation box, and the sewage inlet is connected to the sewage inlet pipe. A water outlet is opened on one side of the bottom surface of the flocculation box and is connected to the contact box. The adjustment component is composed of a fixed bottom plate, a rotating shaft, a bottom plate, a limit rod, a lifting slide, a fixed ring and an electric telescopic rod.

Description

Technical Field

[0001] The invention discloses a dosing assembly for an air flotation machine and an air flotation machine, and relates to a dosing assembly used on an air flotation machine, and belongs to the technical field of sewage treatment, and particularly relates to a dosing assembly which sprays high-pressure gas from a medicine dispensing nozzle by a pressurized air pump, rotates a plurality of stirring blades to increase the contact area with the water flow, and adjusts the height of a medicine storage box and the medicine dispensing nozzle by an electric telescopic rod, so as to fully stir the medicine and sewage. 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 an air flotation machine to solve the above-mentioned problems, which includes a separation tank, a scraper plate, a slag collection tank, a rotating motor, a flocculation box, a contact box, spiral blades, a blower, a disc aerator, a rotating blade and other structures. However, the air flotation machine mixes the medicine into the sewage through a medicine adding hopper, and it is impossible to adjust the amount of the medicine entering. At the same time, the spiral blade cannot adjust the amount of the medicine entering when stirring the mixture, and there is only one spiral blade, and the height cannot be adjusted. The contact area with the water flow is limited. The medicine can only be slowly diffused into the entire flocculation box through centrifugal force and water flow. The medicine cannot flow into the designated area more accurately and quickly, and the mixing speed of the medicine and sewage is slow. Summary of the invention

[0005] In order to improve the above situation, the present invention provides a flotation machine dosing component and an air flotation machine, which provides a dosing component that sprays high-pressure gas from a medicine dispensing nozzle through a pressurized air pump, rotates multiple stirring blades to increase the contact area with the water flow, and adjusts the height of the medicine storage box and the medicine dispensing nozzle through an electric telescopic rod, so as to fully stir the medicine and sewage.

[0006] The present invention provides a flotation machine dosing assembly and an air flotation machine as follows: The present invention provides a flotation machine dosing assembly comprising a fixing assembly, an adjusting assembly and a spraying assembly, wherein the fixing assembly comprises a dosing hopper, a flocculation box, a sewage inlet pipe and a water outlet. The dosing hopper is placed on the top surface of the flocculation box, and the bottom of the dosing hopper corresponds to the drug inlet pipe through the flocculation box. A sewage inlet is provided at an upper position of the side wall of the flocculation box, and the sewage inlet is connected to the sewage inlet pipe. A water outlet is provided on one side of the bottom surface of the flocculation box, and is connected to the contact box. The adjustment assembly consists of a fixed base plate, a rotating shaft, a base plate, a limit rod, a lifting slide, a fixed ring and an electric telescopic rod. The fixed bottom plate is placed on the inner bottom surface of the flocculation box and connected to it. The rotating shaft is placed on the fixed bottom plate. The fixed chassis has a first rotating motor built in, and the motor shaft of the first rotating motor passes through a through hole on the fixed bottom plate and is connected to the rotating shaft. The bottom plate is placed on the rotating shaft and connected to the rotating shaft. Preferably, the bottom surface diameter of the bottom plate is smaller than the bottom surface diameter of the fixed bottom plate. A plurality of limit rods are fixed vertically and equidistantly on the bottom plate. The lifting chute is placed on the limit rod and fits in with the limit rod. The fixing ring is placed on the top of the plurality of limit rods and connected to each other, and the fixing ring is movably connected to the top surface of the flocculation box. One end of the electric telescopic rod is placed on the bottom plate. The spraying assembly consists of a medicine storage box, a medicine inlet pipe, a pressurized air pump, a medicine outlet nozzle, and a stirring blade. The other end of the electric telescopic rod is placed in the center of the medicine storage box, and buckles corresponding to the lifting slide slots are respectively arranged on the upper and lower bottom edges of the medicine storage box. The medicine inlet pipe is located at the center of the top surface of the medicine storage box, and the bottom surface of the medicine inlet pipe is connected to the interior of the medicine storage box. The top surface of the medicine inlet pipe is correspondingly engaged with one end of the medicine adding hopper. The medicine inlet pipe is a one-way valve structure. The medicine storage box has a built-in pressure sensor. The pressurized air pump is located on one side of the upper bottom surface of the medicine storage box. Multiple medicine dispensing nozzles are evenly distributed on the side of the medicine storage box. A plurality of stirring blades are evenly distributed on the side of the medicine storage box. Preferably, the number of stirring blades is smaller than the number of medicine dispensing nozzles. Preferably, the stirring blade is curved. The flocculation box is provided with a data processor, a signal converter, and a controller. The pressure sensor is connected to the signal converter via a data line. The pressurized air pump is connected to the controller via a data line. The rotating motor is connected to the controller via a data line. The electric telescopic rod is connected to the controller via a data line. The signal converter is connected to the data processor via a data transmission line, and the data processor is connected to the controller via a data transmission line. The signal converter can convert the electrical signal of the pressure data collected by the pressure sensor into a digital signal. The controller may be implemented by one or at least two application specific integrated circuits (ASICs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components for executing instructions of the data processing device. The data processor and the signal converter perform information exchange, and a computer-readable storage medium is stored in the data processor, and the following steps are implemented when the computer-readable storage medium is executed: The digital signal of the pressure data received from the pressure sensor is processed, and the processed digital signal of the flow data is compared with the preset pressure threshold. When the digital signal of the pressure data is equal to the preset pressure threshold, an execution instruction is sent to the controller, and the controller controls the pressurized air pump to start, and the medicine is sprayed out from the medicine discharge nozzle after being squeezed by the high-pressure gas. At the same time, the controller controls the rotating motor to start, driving the stirring blade to rotate, and the controller controls the electric telescopic rod to extend and retract, driving the medicine storage box to move up and down, and cooperates with the rotating motor and the stirring blade to diffuse the medicine into the flocculation box. Furthermore, the stirring blade is provided with equally spaced spoiler grooves. Furthermore, the stirring blade is provided with equally spaced flow-distributed protrusions; The present invention also relates to an air flotation machine, which is characterized in that: the air flotation machine of the present invention 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 with 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. Beneficial Effects

[0007] 1. The high-pressure gas ejected by the pressurized air pump can adjust the injection speed and injection volume of the medicine, adjust the penetration of the medicine, and enhance the diffusion ability of the medicine.

[0008] 2. By adjusting the height of the medicine storage box and the medicine dispensing nozzle through the electric telescopic rod, it can ensure that the medicine liquid reaches the designated area accurately, realize fixed-point spraying at a specific location or target, improve the mixing efficiency of the medicine and sewage, and improve the accuracy and effectiveness of the medicine.

[0009] 3. The design of multiple curved stirring blades can increase the contact area between the stirring blades and the sewage mixture, reduce the resistance during stirring, push and mix the medicine and sewage more evenly, and increase the stirring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 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 3 This 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 This is a three-dimensional structural diagram of the interior of a flocculation box of a dosing assembly of an air flotation machine of the present invention; Figure 8This is a three-dimensional structural diagram of a dosing assembly of an air flotation machine of the present invention, in which only the structure of a spraying assembly and a part of an adjusting assembly is shown; Fig. 9 It is a three-dimensional structural diagram of embodiment 2 of an air flotation machine dosing component of the present invention; Fig.10 This is a three-dimensional structural diagram of Example 3 of an air flotation machine dosing component of the present invention. Attached photos

[0011] The components include: 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), a connecting pipe (22), an air inlet branch pipe (23), and a third rotating motor (10). ), disc aerator (24), second rotating motor (25), support rod (26), rotating disc (27), rotating blade (28), water outlet hole (29), spoiler hole (30), spoiler strip (31), pressurized air pump (32), stirring blade (33), electric telescopic rod (34), bottom plate (35), rotating shaft (36), fixed bottom plate (37), limiting rod (38), lifting chute (39), medicine discharging nozzle (40), medicine storage box (41), medicine inlet pipe (42), fixing ring (43), spoiler groove (44), spoiler protrusion (45). DETAILED DESCRIPTION Example 1

[0012] The present invention provides a dosing assembly for an air flotation machine, which is composed of a fixing assembly, an adjusting assembly and a spraying assembly, and is characterized in that: The fixed component is composed of a dosing hopper (12), a flocculation box (15), a sewage inlet pipe (6) and a water outlet hole (29). The drug adding hopper (12) is placed on the top surface of the flocculation box (15), and the bottom of the drug adding hopper (12) corresponds to the drug inlet pipe (42) through the flocculation box (15). A sewage inlet is provided at an upper position of the side wall of the flocculation box (15), and the sewage inlet is connected to the sewage inlet pipe (6). A water outlet hole (29) is formed on one side of the bottom surface of the flocculation box (15) and is connected to the contact box (17). The adjustment assembly is composed of a fixed base plate (37), a rotating shaft (36), a base plate (35), a limit rod (38), a lifting slide groove (39), a fixed ring (43) and an electric telescopic rod (34). The fixed bottom plate (37) is placed on the inner bottom surface of the flocculation box (15) and connected thereto. The rotating shaft (36) is placed on the fixed bottom plate (37). The fixed chassis has a first rotating motor (11) built in, and a motor shaft of the first rotating motor (11) passes through a through hole on the fixed bottom plate (37) and is connected to the rotating shaft (36). The bottom plate (35) is placed on the rotating shaft (36) and is connected to the rotating shaft (36). Preferably, the bottom surface diameter of the bottom plate (35) is smaller than the bottom surface diameter of the fixed bottom plate (37). A plurality of limit rods (38) are fixed vertically and equidistantly on the bottom plate (35). The lifting chute (39) is placed on the limit rod (38) and is in close contact with the limit rod (38). The fixing ring (43) is placed on the top ends of the plurality of limiting rods (38) and connected thereto. The fixing ring (43) is movably connected to the inner top surface of the flocculation box (15). One end of the electric telescopic rod (34) is placed on the bottom plate (35). The spraying assembly is composed of a medicine storage box (41), a medicine inlet pipe (42), a pressurized air pump (32), a medicine outlet nozzle (40), and a stirring blade (33). The other end of the electric telescopic rod (34) is placed at the center of the medicine storage box (41), and buckles corresponding to the lifting slide groove (39) are respectively arranged on the upper bottom surface and the lower bottom surface edges of the medicine storage box (41). The medicine feed pipe (42) is located at the center of the top surface of the medicine storage box (41), and the bottom surface of the medicine feed pipe (42) is connected to the interior of the medicine storage box (41). The top surface of the medicine feed pipe (42) is correspondingly engaged with one end of the medicine adding hopper (12). The medicine feed pipe (42) is a one-way valve structure. The medicine storage box (41) is equipped with a pressure sensor. The pressurized air pump (32) is located on one side of the upper bottom surface of the medicine storage box (41). The medicine dispensing nozzles (40) are evenly spaced and distributed on the side of the medicine storage box (41). The stirring blades (33) are evenly spaced and distributed on the side of the medicine storage box (41). Preferably, the number of the stirring blades (33) is smaller than the number of the medicine dispensing nozzles (40). Preferably, the stirring blade (33) is curved. The flocculation box (15) is provided with a data processor, the flocculation box (15) is provided with a signal converter, and the flocculation box (15) is provided with a controller. The pressure sensor is connected to the signal converter via a data line. The pressurized air pump (32) is connected to the controller via a data line. The rotating motor is connected to the controller via a data line. The electric telescopic rod (34) is connected to the controller via a data line. The signal converter is connected to the data processor via a data transmission line, and the data processor is connected to the controller via a data transmission line. The signal converter can convert the electrical signal of the pressure data collected by the pressure sensor into a digital signal. The controller may be implemented by one or at least two application specific integrated circuits (ASICs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components for executing instructions of the data processing device. The data processor and the signal converter perform information exchange, and a computer-readable storage medium is stored in the data processor, and the following steps are implemented when the computer-readable storage medium is executed: The digital signal of the pressure data received from the pressure sensor is processed, and the processed digital signal of the flow data is compared with a preset pressure threshold. When the digital signal of the pressure data is equal to the preset pressure threshold, an execution instruction is sent to the controller, and the controller controls the pressurized air pump (32) to start, and the medicine solution is sprayed out from the medicine discharge nozzle (40) through the squeezing of the high-pressure gas. At the same time, the controller controls the rotating motor to start, driving the stirring blade (33) to rotate. The controller controls the electric telescopic rod (34) to extend and retract, driving the medicine storage box (41) to move up and down, and cooperates with the rotating motor and the stirring blade (33) to diffuse the medicine solution into the flocculation box (15); When in use, sewage enters the flocculation box (15) from the sewage inlet pipe (6), and the controller controls the electric telescopic rod (34) to adjust the medicine inlet pipe (42) to fit the medicine adding hopper (12). The medicine flows into the medicine adding hopper (12) and enters the medicine storage box (41) through the medicine inlet pipe (42). The pressure sensor in the medicine storage box (41) collects pressure data in the medicine storage box (41) and transmits the collected pressure data to the signal converter. The signal converter converts the electrical signal of the pressure data into a digital signal. The signal converter converts the digital signal of the pressure data into a digital signal. The signal is transmitted to the data processor, and the data processor processes the digital signal. When the pressure signal monitored by the pressure sensor is equal to a preset pressure threshold, the controller controls the pressurized air pump (32) to start, and the medicine solution is sprayed out from the medicine outlet nozzle (40) through the squeezing of the high-pressure gas. At the same time, the controller controls the rotary motor and the electric telescopic rod (34) to start, driving the medicine storage box (41) and the stirring blade (33) to move, so that the medicine solution is diffused into the flocculation box (15), merged with the sewage, and a corresponding reaction is generated, and the sewage mixture is discharged from the water outlet hole (29). Example 2

[0013] The difference between this embodiment and embodiment 1 is that the stirring blade (33) is provided with equidistantly distributed flow disturbance grooves (44). When in use, the medicine solution is sprayed out from the medicine discharging nozzle (40) and mixed into the sewage. The flow disturbance grooves (44) on the stirring blade (33) can reduce the generation of turbulence and vortex, thereby improving the stirring effect. The flow disturbance grooves (44) can improve the distribution of the fluid on the surface of the stirring blade (33), reduce the turbulence intensity, reduce energy loss, and help improve the mixing efficiency and mass transfer effect. Example 3

[0014] The difference between this embodiment and embodiment 2 is that: the stirring blade (33) is provided with equidistantly distributed spoiler protrusions (45), which can further increase the generation of turbulence and vortex, thereby improving the stirring effect; the spoiler protrusions (45) can cause more turbulent motion, increase the friction between the fluid and the blade, and effectively improve the mixing process of sewage and medicine; by combining the design of the spoiler groove (44) and the spoiler protrusion (45), a stronger convection and shear effect can be promoted, the uniformity and mixing efficiency of the material can be improved, and the stirring process can be made more sufficient and effective.

[0015] The design that the bottom surface diameter of the bottom plate (35) is smaller than the bottom surface diameter of the fixed bottom plate (37) can enhance the stability of the product, reduce the resistance of the water flow to the bottom plate (35), reduce the phenomenon of turbine and blockage, increase the rotation speed of the bottom plate (35), and improve the efficiency and performance of the equipment; The design of a plurality of limit rods (38) being equidistantly and vertically fixed on the base plate (35) can enhance the structural stability of the base plate (35), prevent the base plate (35) from being deformed or moved due to external force or vibration, thereby improving the working efficiency and accuracy of the equipment or product, protecting the equipment or product from damage, and increasing the bearing capacity of the base plate (35). The medicine inlet pipe (42) is designed as a one-way valve structure, which can ensure that the medicine does not flow out of the medicine storage box (41) when the medicine storage box (41) moves up and down; The multiple stirring blades (33) are designed to be curved, which can increase the contact area between the stirring blades (33) and the sewage mixture, reduce the resistance during stirring, reduce energy consumption, improve the movement path of the fluid, and can more evenly push and mix the medicine and sewage, thereby increasing the stirring effect; The pressurized air pump (32) cooperates with the medicine dispensing nozzle (40) to increase the spraying speed of the medicine solution, so that the medicine solution is sprayed at a faster speed, which helps to improve the coverage and uniformity of the medicine solution during the spraying process, and can increase the penetration of the medicine solution, so that the medicine solution can better penetrate into the sewage; The rotary motor cooperates with the stirring blade (33) to effectively stir, mix or disperse the medicine solution and the sewage. By adjusting the rotation speed of the rotary motor, the rotation speed of the stirring blade (33) can be controlled to meet the stirring intensity and speed under different process requirements; The electric telescopic rod (34) cooperates with the medicine storage box (41) to ensure that the medicine liquid accurately reaches the required area, change the spray angle of the sprayed medicine liquid, and accurately adjust the position of the medicine spray head (40) to achieve fixed-point spraying at a specific position or target, thereby improving the accuracy and effectiveness of the medicine; The buckle cooperation between the lifting slide groove (39) and the medicine storage box (41) can ensure that the medicine storage box (41) is firmly fixed at a desired position during the lifting process, thereby preventing the medicine storage box (41) from accidentally falling off or shaking due to vibration or movement, making the process of replacing or adjusting the medicine storage box (41) more efficient and improving work efficiency.

[0016] The purpose is to achieve the purpose of being able to spray the medicine liquid from the medicine discharging nozzle (40) by spraying high-pressure gas through the pressurized air pump (32), increasing the contact area with the water flow by rotating the plurality of stirring blades (33), and adjusting the height of the medicine storage box (41) and the medicine discharging nozzle (40) by the electric telescopic rod (34), so that the medicine liquid and the sewage can be fully stirred.

[0017] It should be noted that the dosing assembly is suitable for the following flotation machines: The present invention also relates to an air flotation machine, which is characterized in that: the air flotation machine of the present invention 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 (45) 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); 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. 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 (45) 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.

[0018] 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.

[0019] 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.

[0020] 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. A dosing assembly for an air flotation machine, characterized by: The flocculation box is provided with a sewage inlet and a sewage inlet pipe, and the sewage inlet is connected to the sewage inlet pipe. A water outlet is provided on one side of the bottom surface of the flocculation box and is connected to the contact box. The adjusting component is composed of a fixed bottom plate, a rotating shaft, a bottom plate, a limiting rod, a lifting slide, a fixed ring and an electric telescopic rod. The fixed bottom plate is placed on the inner bottom surface of the flocculation box and is connected. The rotating shaft is placed on the fixed bottom plate. The fixed bottom plate is equipped with a first rotating motor. The motor shaft of the first rotating motor passes through a through hole on the fixed bottom plate and is connected to the rotating shaft. The bottom plate is placed on the rotating shaft and is connected to the rotating shaft. A plurality of limiting rods are equidistantly and vertically fixed to the bottom plate. The lifting slide is placed on the limiting rod and is opposite to the limiting rod. It should fit tightly, the fixing ring is placed on the top of the plurality of limit rods and connected, the fixing ring is movably connected to the top surface of the flocculation box body, one end of the electric telescopic rod is placed on the bottom plate, the spray assembly consists of a medicine storage box, a medicine inlet pipe, a pressurized air pump, a medicine discharge nozzle, and a stirring blade, the other end of the electric telescopic rod is placed in the center of the medicine storage box, the medicine inlet pipe is located at the center of the top surface of the medicine storage box, and the bottom surface of the medicine inlet pipe is connected to the interior of the medicine storage box, the top surface of the medicine inlet pipe is correspondingly engaged with one end of the medicine adding hopper, the medicine inlet pipe is a one-way valve structure, a pressure sensor is built into the medicine storage box, the pressurized air pump is located on one side of the upper bottom surface of the medicine storage box, a plurality of medicine discharge nozzles are equidistantly distributed on the side of the medicine storage box, a plurality of stirring blades are equidistantly distributed on the side of the medicine storage box, a data processor is arranged on the flocculation box body, a signal converter is arranged on the flocculation box body, and a controller is arranged on the flocculation box body.

2. The air flotation machine dosing assembly according to claim 1, characterized in that The stirring blade is provided with equidistantly distributed spoiler grooves. When in use, the medicine is sprayed out from the medicine discharge nozzle and mixed into the sewage. The spoiler grooves on the stirring blade can reduce the generation of turbulence and vortex, thereby improving the stirring effect; the spoiler grooves can improve the distribution of the fluid on the surface of the stirring blade, reduce the turbulence intensity, reduce energy loss, and help improve the mixing efficiency and mass transfer effect.

3. The air flotation machine dosing assembly according to claim 1, characterized in that The stirring blades are provided with equidistantly distributed spoiler protrusions; the generation of turbulence and vortex can be further increased, thereby improving the stirring effect; the spoiler protrusions can cause more turbulent motion, increase the friction between the fluid and the blades, and effectively improve the mixing process of sewage and medicine; by combining the design of spoiler grooves and spoiler protrusions, stronger convection and shear effects can be promoted, the uniformity and mixing efficiency of the material can be improved, and the stirring process can be more sufficient and effective.

4. The air flotation machine dosing assembly according to claim 1, characterized in that The bottom of the medicine adding hopper corresponds to the medicine inlet pipe through the flocculation box; the medicine inlet pipe is a one-way valve structure, which can ensure that the medicine does not flow out of the medicine storage box when the medicine storage box moves up and down.

5. The air flotation machine dosing assembly according to claim 1, characterized in that The bottom diameter of the bottom plate is smaller than the bottom diameter of the fixed bottom plate; it can enhance the stability of the product, reduce the resistance of water flow to the bottom plate, reduce turbine and blockage phenomena, speed up the rotation speed of the bottom plate, and improve the efficiency and performance of the equipment.

6. The air flotation machine dosing assembly according to claim 1, characterized in that The edges of the upper bottom surface and the lower bottom surface of the medicine storage box are respectively provided with buckles corresponding to the lifting slide groove; the lifting slide groove cooperates with the buckles of the medicine storage box to ensure that the medicine storage box is firmly fixed in the required position during the lifting process, avoiding accidental falling off or shaking of the medicine storage box due to vibration or movement, making the process of replacing or adjusting the medicine storage box more efficient and improving work efficiency; the number of the stirring blades is smaller than the number of the medicine dispensing nozzles.

7. The air flotation machine dosing assembly according to claim 1, characterized in that The stirring blades are curved, which can increase the contact area between the stirring blades and the sewage mixture, reduce resistance during stirring, reduce energy consumption, improve the movement path of the fluid, and can push and mix the medicine and sewage more evenly, thereby increasing the stirring effect.

8. The air flotation machine dosing assembly according to claim 1, characterized in that The pressurized air pump cooperates with the medicine dispensing nozzle to increase the spraying speed of the medicine, so that the medicine is sprayed at a faster speed, which helps to improve the coverage and uniformity of the medicine during the spraying process, and can increase the penetration of the medicine, so that the medicine can better penetrate into the sewage.

9. The air flotation machine dosing assembly according to claim 1, characterized in that The pressure sensor is connected to the signal converter via a data line, the pressurized air pump is connected to the controller via a data line, the rotating motor is connected to the controller via a data line, the electric telescopic rod is connected to the controller via a data line, the signal converter is connected to the data processor via a data transmission line, the data processor is connected to the controller via a data transmission line, the signal converter can convert the electrical signal of the pressure data collected by the pressure sensor into a digital signal, the controller can be implemented by one or at least two application-specific integrated circuits (ASICs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components, and is used to execute instructions of the data processing device, The data processor and the signal converter exchange information, and a computer-readable storage medium is stored in the data processor. When the computer-readable storage medium is executed, the following steps are implemented: the digital signal of the pressure data received from the pressure sensor is processed, and the processed digital signal of the flow data is compared with a preset pressure threshold. When the digital signal of the pressure data is equal to the preset pressure threshold, an execution instruction is sent to the controller, and the controller controls the pressurized air pump to start, and the medicine is sprayed out from the medicine discharge nozzle after being squeezed by the high-pressure gas. At the same time, the controller controls the starting of the rotating motor to drive the stirring blades to rotate. The controller controls the extension and retraction of the electric telescopic rod to drive the medicine storage box to move up and down. In conjunction with the rotating motor and the stirring blades, the medicine can be diffused into the flocculation box.

10. The air flotation machine dosing assembly according to claim 4, 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 equidistant along the circumference of 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 on the scraping The top surface of the slag plate, the second connecting rod is a retractable structure, one end of the outlet pipe is placed on a side of the separation tank and is connected to the separation tank, the filter is placed at one end of the outlet pipe, the diameter of the filter is equal to the inner diameter of the 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, the support rod A rotating disc is sleeved on the side, and there are multiple rotating discs, and the multiple rotating discs are equidistantly arranged 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 equidistantly arranged along the circumferential direction of the side of the rotating disc. Preferably, 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 is communicated with the air outlet of the blower, 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, the connecting pipe is parallel to one side surface of the contact box body, and is close to one side surface of the contact box body, and the length of the connecting pipe is equal to the length of one side surface 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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