Air flotation machine for wastewater treatment and use method

Abstract

The invention discloses an air flotation machine for wastewater treatment and a using method, and relates to the technical field of wastewater treatment.The air flotation machine comprises an air flotation machine body and further comprises a rotary throwing mechanism and a synchronous material assisting mechanism, the rotary throwing mechanism and the synchronous material assisting mechanism are both arranged on the air flotation machine body, the rotary throwing mechanism is used for rotationally throwing a flocculating agent, and the synchronous material assisting mechanism is used for synchronously throwing the flocculating agent. Through arrangement of the rotary throwing mechanism, the transverse position of the movable frame can be changed through rotation of a shifting rod, meanwhile, through cooperation with design of a toothed plate and a driven gear, a spray head rotates above the air flotation machine body, the flocculating agent is thrown into waste water in a rotary throwing mode, and the flocculating agent can be discharged in an auxiliary mode. The flocculant can be distributed more uniformly, and the situation that the local concentration is too high or too low is reduced, so that the flocculation effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to an air flotation machine for wastewater treatment and a use method thereof. Background Art

[0002] In the prior art, wastewater treatment refers to the process of purifying wastewater using physical, chemical and biological methods to reduce pollution and achieve wastewater recycling and reuse. In this process, flotation machines, as an important equipment, play a key role. Flotation machines are a type of equipment that generates a large number of fine bubbles in water, attaches the bubbles to suspended matter in the wastewater, and uses the principle of buoyancy to float the suspended matter to the water surface, thereby achieving solid-liquid separation.

[0003] In the process of using flotation machines to treat wastewater, in order to change the surface characteristics of suspended matter in the wastewater and make it easier for them to attract each other and combine to form larger floccules, it is usually necessary to add flocculants to the wastewater. However, traditional flocculant dosing systems usually use static or simple mobile nozzles, which cannot effectively control the distribution of flocculants on the surface of the wastewater. This causes the flocculant concentration to be too high or too low in some local areas of the wastewater, thus affecting the overall flocculation effect. In addition, areas with too high concentrations will cause waste of resources, while areas with too low concentrations will not achieve the expected flocculation effect.

[0004] In view of this, the present invention proposes an air flotation machine for wastewater treatment and a method of use to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an air flotation machine for wastewater treatment and a method of use to solve the corresponding technical problems raised in the above background technology.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: an air flotation machine for wastewater treatment, comprising an air flotation machine body, and also comprising: a rotating spraying mechanism and a synchronous material-assisting mechanism, and the rotating spraying mechanism and the synchronous material-assisting mechanism are both arranged on the air flotation machine body; The rotary spreading mechanism is used to perform rotary spreading of the flocculant; The synchronous feeding aid mechanism is used for assisting the feeding of flocculants.

[0007] Preferably, the rotating spreading mechanism includes a U-shaped support plate fixedly connected to the bottom of the flotation machine body, the upper ends of the U-shaped support plate are symmetrically rotatably connected with a rotating shaft on the opposite sides, one side of the outer wall of the U-shaped support plate is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected to one of the rotating shafts, a centrifugal shaft is rotatably connected between the opposite sides of the lower ends of the U-shaped support plate, and the centrifugal shaft is rotatably connected to the flotation machine body, and a transmission member is symmetrically connected to the outer surface of the centrifugal shaft and the rotating shaft.

[0008] Preferably, the outer surfaces of the opposite ends of the rotating shaft are fixedly connected with extension plates, the opposite sides of the extension plates are fixedly connected with levers, and the levers are arranged away from the rotating shaft, the outer walls on both sides of the flotation machine body are symmetrically slidably connected with movable frames, and the movable frames are slidably connected to the levers, and a slide plate is fixedly connected to the top of the movable frame, and the slide plate is slidably connected to the outer wall of the flotation machine body.

[0009] Preferably, a U-shaped fixing plate is fixedly connected between the tops of the slide plates, a linkage shaft is rotatably connected to the middle of the U-shaped fixing plate, a through hole is opened in the linkage shaft, a nozzle is fixedly connected to the bottom of the linkage shaft through the through hole, and the nozzle is arranged under the U-shaped fixing plate, spray holes are equidistantly opened in a ring shape at the bottom of the nozzle, and an arc-shaped inclined plate is fixedly connected to the bottom of the nozzle in a ring shape at equidistant intervals.

[0010] Preferably, a driven gear is fixedly connected to the outer surface of the linkage shaft, and the driven gear is arranged above the U-shaped fixed plate. A bending frame is fixedly connected to the top of the flotation machine body, and a tooth plate is fixedly connected to the side of the bending frame facing the driven gear, and the tooth plate is meshingly connected to the driven gear.

[0011] Preferably, the synchronous material-assisting mechanism includes bending rods symmetrically and fixedly connected to the two ends of the U-shaped support plate, storage bins are fixedly connected between the bending rods, and the storage bins are arranged above the linkage shaft, and discharge holes are equidistantly provided at the lower end of the storage bin, and a sealing plate is symmetrically penetrated and slidably connected to the lower end of the storage bin, and the sealing plate is used to seal the discharge holes, and arc-shaped notch grooves and profiling grooves are symmetrically provided on opposite sides of the sealing plate, and the arc-shaped notch grooves are communicated with the profiling grooves, and a driven ring is fixedly connected to the outer surface of the upper end of the linkage shaft, the linkage shaft is rotatably connected between the arc-shaped notch grooves, and the driven ring is slidably connected between the profiling grooves.

[0012] Preferably, a side plate is symmetrically fixedly connected to the top of the end of the sealing plate away from the side plate, a threaded rod is fixedly connected between the side plates, and the threaded rod is movably connected to the storage bin, and a return spring is symmetrically fixedly connected between the outer walls on both sides of the storage bin and the side plate, and the return spring is sleeved on the outside of the threaded rod.

[0013] Preferably, fixed frames are symmetrically fixedly connected between the inner walls on both sides of the lower end of the storage bin, a rotating sleeve is rotatably connected between the fixed frames, and the rotating sleeve is threadedly connected to the outer surface of the threaded rod, annular plates are equidistantly fixedly connected to the outer surface of the rotating sleeve, and a wavy edge plate is annularly and equidistantly fixedly connected to the outer surface of the annular plate.

[0014] A method for using an air flotation machine for wastewater treatment, the method comprising the following steps: Step 1: Start and initial movement; The driving motor is started to drive the rotating shaft to start rotating, and then the moving frame starts to slide horizontally on the outer walls of both sides of the air flotation machine body through the lever; Step 2: Linked movement and spraying; As the moving frame slides, the U-shaped fixed plate and linkage shaft on its upper part move synchronously above the wastewater treatment area, and the flocculant in the linkage shaft is sprayed out through the nozzle, and forms an oblique angle under the guidance of the arc-shaped inclined plate, covering the surface of the wastewater outward; Step 3: Rotate and sprinkle; The driven gear on the linkage shaft meshes with the tooth plate. As the U-shaped fixed plate moves, the driven gear drives the linkage shaft to rotate synchronously. The rotating nozzle will cause the flocculant to be more evenly sprinkled on the wastewater surface under the centrifugal effect, thereby enhancing the mixing effect. Step 4: Internal stirring; At the same time, the driving motor drives the centrifugal shaft to rotate through the transmission parts, and the centrifugal shaft stirs the wastewater inside the air flotation machine body, breaking the laminar flow, promoting uniform mixing of the wastewater, and improving the treatment efficiency; Step 5: Mobile unloading When the linkage shaft moves above the wastewater, the driven ring at its upper end cooperates with the contoured groove on the sealing plate to push the sealing plate to move horizontally at the lower end of the storage bin, changing its relative position with the discharge hole to achieve intermittent mobile discharge; Step 6: Intermittent supplementation; As the linkage shaft moves, the sealing plate is aligned with the discharge holes at different positions in turn, so that the flocculant in the storage bin is intermittently added to the linkage shaft to avoid clogging the nozzle; Step 7: Rotate and stir; When the sealing plate moves, the threaded rod moves synchronously at the lower end of the storage bin, thereby driving the rotating sleeve to rotate, and synchronously causing the annular plate and the wave edge plate on the rotating sleeve to rotate accordingly, stirring the flocculant in the storage bin to prevent agglomeration and blockage of the discharge hole, ensuring smooth discharge.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the setting of the rotary throwing mechanism, the lateral position of the mobile frame can be changed by rotating the lever. At the same time, with the design of the tooth plate and the driven gear, the nozzle can be rotated above the flotation machine body, and the flocculant is thrown into the wastewater in a rotary throwing manner, so that the flocculant can be distributed more evenly, reducing the situation of excessively high or low local concentration, thereby improving the flocculation effect; Moreover, the rotating lever drives the moving frame to move horizontally, and the nozzle can move along different positions above the main body of the flotation machine. This horizontal movement enables the flocculant to be delivered to different positions of the wastewater treatment area, thereby expanding the coverage of the flocculant. On the basis of the horizontal movement, the rotation function is added, so that the nozzle can not only move in the horizontal direction, but also rotate in the vertical plane. This composite movement makes the delivery of the flocculant more flexible and diversified. The centrifugal force generated by the rotation can achieve a more uniform distribution in a larger spatial range, which helps to break the static balance of the water flow and the suspended particles and promote the full mixing of the flocculant and the wastewater. The bending frame is arranged on the top of the air flotation machine body, and the driven gear is arranged above the U-shaped fixing plate, which can ensure that the meshing between the tooth plate and the driven gear is always in the best state, while avoiding interference with other components, so as to minimize the impact on the internal space of the air flotation machine body, and maximize the support and stability of the nozzle rotation path; The movable frame and the slide plate can form a T-shaped structure and be symmetrically slidably arranged on the outer walls of both sides of the air flotation machine body, and the two slide plates and the U-shaped fixed plate can form an I-shaped structure and be arranged on the upper end of the air flotation machine body. When the lever drives the movable frame to rotate, the movable frame and the slide plate can stably slide on the outer walls of both sides of the air flotation machine body, thereby increasing the overall rigidity and stability of the structure, reducing the shaking or deviation of the nozzle caused by vibration or external force, and affecting the delivery of flocculant; The arc-shaped inclined plate arranged in a ring shape near the spray hole at the bottom of the nozzle can assist the spreading of the flocculant during the flocculant injection process, so that the flocculant sprayed from the spray hole is guided to an oblique direction at the initial stage, which helps to reduce the situation where the flocculant directly falls vertically, so that the flocculant can cover the wastewater surface more widely, thereby improving the uniformity of the spreading. In addition, the inclination of the arc-shaped inclined plate not only changes the spray direction of the flocculant, but also increases the contact area between the flocculant and the air, which helps to further disperse the flocculant particles in the air, reduce the fluctuation and disturbance caused by the flocculant directly impacting the wastewater surface, keep the wastewater surface calm, and reduce the generation of foam and vortex on the wastewater surface. In addition, a centrifugal shaft that runs through the main body of the flotation machine is rotatably arranged at the lower end of the U-shaped support plate. The transmission effect of the transmission member can be utilized to rotate synchronously with the internal rotation of the flotation machine body while the shaft rotates, and the wastewater is centrifugally moved, which helps to break the laminar flow state in the wastewater, so that different parts of the wastewater are mixed more evenly, and the wastewater is mixed more quickly and thoroughly in the flotation machine, thereby shortening the processing time and improving the overall processing efficiency. The centrifugal shaft is connected to the shaft through the transmission member. This design cleverly utilizes the power of the drive motor to realize the synchronous rotation of the centrifugal shaft. While realizing the rotation and spreading of the flocculant, it can also act from the inside of the wastewater. This structural design is compact and reasonable, reduces additional power sources and transmission devices, and reduces the complexity and cost of the equipment.

[0016] (2) By setting up the synchronous auxiliary feeding mechanism, the position of the linkage shaft can be changed to drive the two sealing plates to move synchronously so that different feeding holes are connected with the through holes in sequence, and the flocculant in the storage bin is introduced into the nozzle, and the flocculant is replenished and fed intermittently to avoid excessive flocculant inside the nozzle causing blockage due to continuous feeding; Moreover, in the process of the linkage shaft moving to receive the material, the sealing plate is driven to move, so that the threaded rod can drive the rotating sleeve to rotate in the storage bin, and the wave edge plate is driven to rotate synchronously at the lower end of the storage bin, so as to move the flocculant to promote the discharge of the flocculant and avoid the blockage of the flocculant when the flocculant is discharged inside the storage bin, thereby further realizing the auxiliary promotion of the discharge of the flocculant; The design of the sealing plate symmetrically sliding in the lower end of the storage bin can block the remaining discharge holes when the linkage shaft moves to connect with one of the discharge holes to receive the material, thereby reducing the contact between the storage bin and the external environment and preventing the flocculant from getting damp and agglomerated. Among them, the wavy design of the edge of the wave edge plate, compared with the straight edge, can produce a more complex and variable material flow pattern for the flocculant in the process of rotating with the rotating sleeve inside the storage bin, thereby generating more eddies and turbulence, and generating stronger disturbances, which helps to break up the flocculant clumps or agglomerates formed in the storage bin and prevent these clumps from clogging the discharge hole; Among them, when the sealing plate is driven to move and change its position, the return spring designed between the side plate and the storage bin can follow the lateral movement of the threaded rod and be compressed or stretched synchronously, so that the ends of the two sealing plates that are far away from each other can always maintain balance to enhance the adaptability and stability of the structure, and improve the ability to cope with external interference and vibration, so that the two sealing plates always maintain abutment with each other, and the linkage shaft is stably confined between the two sealing plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the lever connection of the present invention; Figure 3 The present invention shows Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a structural schematic diagram of the connection between the tooth plate and the driven gear shown in the present invention; Figure 5 This is a schematic diagram of the structure of the connection of the storage bin shown in the present invention; Figure 6 The present invention shows Figure 5 The enlarged structural diagram at B in the middle; Figure 7 It is a schematic diagram of the disassembled structure of the sealing plate and the linkage shaft shown in the present invention; Figure 8 The present invention shows Figure 7 The enlarged structural diagram at C in the middle; Fig. 9 It is a schematic diagram of the disassembled structure of the threaded rod and the rotating sleeve shown in the present invention.

[0018] The numbers in the figure are: 1. Air flotation machine body; 2. Rotating and spreading mechanism; 201. U-shaped supporting plate; 202. driving motor; 203. rotating shaft; 204. transmission member; 205. centrifugal shaft; 206. extension plate; 207. lever; 208. moving frame; 209. slide plate; 210. U-shaped fixing plate; 211. linkage shaft; 212. through hole; 213. driven gear; 214. nozzle; 215. spray hole; 216. arc-shaped inclined plate; 217. bending frame; 218. tooth plate; 3. Synchronous material-assisting mechanism; 301. Driven ring; 302. Bending rod; 303. Material storage bin; 304. Sealing plate; 305. Arc-shaped notch groove; 306. Profile groove; 307. Side plate; 308. Threaded rod; 309. Return spring; 310. Rotating sleeve; 311. Annular plate; 312. Wave edge plate; 313. Fixed frame; 314. Material discharge hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1 of the present invention: Please refer to Figures 1 to 9As shown, an air flotation machine for wastewater treatment includes an air flotation machine body 1, and also includes: a rotating and throwing mechanism 2 and a synchronous material-assisting mechanism 3, and the rotating and throwing mechanism 2 and the synchronous material-assisting mechanism 3 are both arranged on the air flotation machine body 1; The rotary spreading mechanism 2 is used for rotating and spreading the flocculant; The synchronous auxiliary feeding mechanism 3 is used for auxiliary feeding of the flocculant; The rotating and spreading mechanism 2 includes a U-shaped support plate 201 fixedly connected to the bottom of the air flotation machine body 1, and the upper end of the U-shaped support plate 201 is symmetrically connected to the rotating shaft 203 on the opposite sides. The outer wall of one side of the U-shaped support plate 201 is fixedly connected to a driving motor 202, and the output end of the driving motor 202 is fixedly connected to one of the rotating shafts 203. The lower end of the U-shaped support plate 201 is rotatably connected to a centrifugal shaft 205 between the opposite sides, and the centrifugal shaft 205 is rotatably connected to the air flotation machine body 1, and the outer surface of the centrifugal shaft 205 and the rotating shaft 203 are symmetrically connected. A transmission member 204 is connected, and the transmission member 204 is composed of two transmission wheels and a transmission belt connected between the two transmission wheels, and the two transmission wheels are fixedly connected to the outer surfaces of the rotating shaft 203 and the centrifugal shaft 205 respectively. When the rotating shaft 203 rotates, the transmission wheels thereon can be driven to rotate synchronously. Through the transmission of the transmission belt, the transmission wheel on the centrifugal shaft 205 is driven to rotate synchronously with the centrifugal shaft 205. When the centrifugal shaft 205 rotates, the transmission wheel on the other end thereof rotates synchronously, and under the transmission action of the transmission belt on the other side, the other rotating shaft 203 can be driven to rotate; The outer surfaces of the opposite ends of the rotating shaft 203 are fixedly connected with extension plates 206, and the opposite sides of the extension plates 206 are fixedly connected with levers 207, and the levers 207 are arranged away from the rotating shaft 203. The outer walls of both sides of the air flotation machine body 1 are symmetrically slidably connected with moving frames 208, and the moving frames 208 are slidably connected with the levers 207. The top of the moving frames 208 is fixedly connected with a slide plate 209, and the slide plate 209 is slidably connected with the outer wall of the air flotation machine body 1. A U-shaped fixing plate 210 is fixedly connected between the tops of the slide plate 209, a linkage shaft 211 is rotatably connected to the middle of the U-shaped fixing plate 210, a through hole 212 is provided in the linkage shaft 211, a nozzle 214 is fixedly connected to the bottom of the linkage shaft 211 through the through hole 212, and the nozzle 214 is arranged below the U-shaped fixing plate 210, and nozzle holes 215 are equidistantly provided at the bottom of the nozzle 214 in an annular shape, and an arc-shaped inclined plate 216 is fixedly connected to the bottom of the nozzle 214 in an annular shape; A driven gear 213 is fixedly connected to the outer surface of the linkage shaft 211, and the driven gear 213 is arranged above the U-shaped fixing plate 210. A bending frame 217 is fixedly connected to the top of the air flotation machine body 1. A tooth plate 218 is fixedly connected to the side of the bending frame 217 facing the driven gear 213, and the tooth plate 218 is meshed with the driven gear 213.

[0021] The effects achieved by this embodiment are as follows: compared with the prior art, by setting the rotary throwing mechanism 2, the lateral position of the movable frame 208 can be changed by the rotation of the lever 207, and at the same time, in conjunction with the design of the tooth plate 218 and the driven gear 213, the nozzle 214 is rotated above the air flotation machine body 1, and the flocculant is thrown into the wastewater in a rotary throwing manner, so that the flocculant can be distributed more evenly, reducing the situation where the local concentration is too high or too low, thereby improving the flocculation effect; Furthermore, the rotation of the lever 207 drives the movable frame 208 to move laterally, and the nozzle 214 can move along different positions above the flotation machine body 1. This lateral movement enables the flocculant to be delivered to different positions of the wastewater treatment area, thereby expanding the coverage of the flocculant. On the basis of the lateral movement, the rotation function is added, so that the nozzle 214 can not only move in the horizontal direction, but also rotate in the vertical plane. This composite movement makes the delivery of the flocculant more flexible and diversified. The centrifugal force generated by the rotation can achieve a more uniform distribution in a larger spatial range, which helps to break the static balance of the water flow and the suspended particles and promote the full mixing of the flocculant and the wastewater.

[0022] Further examples: Please refer to Figures 1 to 9 As shown, the synchronous material-assisting mechanism 3 includes a bending rod 302 symmetrically fixedly connected to both ends of the U-shaped support plate 201, a storage bin 303 is fixedly connected between the bending rods 302, and the storage bin 303 is arranged above the linkage shaft 211, and the lower end of the storage bin 303 is equidistantly provided with discharge holes 314, and the lower end of the storage bin 303 is symmetrically penetrated and slidably connected with a sealing plate 304, and the sealing plate 304 is used to block the discharge hole 314, and the sealing plate 304 is symmetrically provided with an arc-shaped notch groove 305 and a profiling groove 306 on the opposite sides of the sealing plate 304, and the arc-shaped notch groove 305 is communicated with the profiling groove 306, and a driven ring 301 is fixedly connected to the outer surface of the upper end of the linkage shaft 211, the linkage shaft 211 is rotatably connected between the arc-shaped notch groove 305, and the driven ring 301 is slidably connected between the profiling groove 306; The top of one end of the sealing plate 304 away from the other end is symmetrically fixedly connected with a side plate 307, a threaded rod 308 is fixedly connected between the side plates 307, and the threaded rod 308 is movably connected to the storage bin 303, and a return spring 309 is symmetrically fixedly connected between the outer walls of both sides of the storage bin 303 and the side plates 307, and the return spring 309 is sleeved on the outside of the threaded rod 308; A fixing frame 313 is symmetrically fixedly connected between the inner walls on both sides of the lower end of the storage bin 303, a rotating sleeve 310 is rotatably connected between the fixing frames 313, and the rotating sleeve 310 is threadedly connected to the outer surface of the threaded rod 308, an annular plate 311 is equidistantly fixedly connected to the outer surface of the rotating sleeve 310, and a wave edge plate 312 is annularly and equidistantly fixedly connected to the outer surface of the annular plate 311.

[0023] The effects achieved by this embodiment are as follows: compared with the prior art, by setting the synchronous auxiliary mechanism 3, the position change of the linkage shaft 211 can be utilized to drive the two sealing plates 304 to move synchronously so that different feeding holes 314 are connected with the through hole 212 in sequence, and the flocculant in the storage bin 303 is introduced into the nozzle 214, and the flocculant is intermittently supplemented and fed, so as to avoid the situation where the nozzle 214 is blocked by excessive flocculant due to continuous feeding; Moreover, in the process of the linkage shaft 211 moving to receive the material, in conjunction with the driving movement of the sealing plate 304, the threaded rod 308 can drive the rotating sleeve 310 to rotate in the storage bin 303, and the wavy edge plate 312 can be driven to rotate synchronously at the lower end of the storage bin 303, so as to stir the flocculant to promote the discharge of the flocculant and avoid blockage when the flocculant is discharged inside the storage bin 303, thereby further realizing the auxiliary promotion of the discharge of the flocculant.

[0024] Embodiment 2 of the present invention: A method for using an air flotation machine for wastewater treatment, the method comprising the following steps: Step 1: Start and initial movement; The driving motor 202 is started to drive the rotating shaft 203 to start rotating, and then the movable frame 208 starts to slide horizontally on the outer walls of both sides of the air flotation machine body 1 through the lever 207; Step 2: Linked movement and spraying; As the moving frame 208 slides, the U-shaped fixed plate 210 and the linkage shaft 211 on the upper part thereof move synchronously above the wastewater treatment area, and the flocculant in the linkage shaft 211 is sprayed out through the nozzle 214 and forms an oblique angle under the guidance of the arc-shaped inclined plate 216, covering the surface of the wastewater outwards; Step 3: Rotate and sprinkle; The driven gear 213 on the linkage shaft 211 meshes with the tooth plate 218. As the U-shaped fixing plate 210 moves, the driven gear 213 drives the linkage shaft 211 to rotate synchronously. The rotating nozzle 214 causes the flocculant to be more evenly sprinkled onto the wastewater surface under the centrifugal effect, thereby enhancing the mixing effect. Step 4: Internal stirring; At the same time, the driving motor 202 drives the centrifugal shaft 205 to rotate through the transmission member 204, and the centrifugal shaft 205 stirs the wastewater inside the air flotation machine body 1, breaking the laminar flow, promoting uniform mixing of the wastewater, and improving the treatment efficiency; Step 5: Mobile unloading When the linkage shaft 211 moves above the wastewater, the driven ring 301 at its upper end cooperates with the contoured groove 306 on the sealing plate 304, pushing the sealing plate 304 to move horizontally at the lower end of the storage bin 303, changing the relative position with the discharge hole 314, and realizing intermittent mobile discharge; Step 6: Intermittent supplementation; As the linkage shaft 211 moves, the sealing plate 304 is aligned with the discharge holes 314 at different positions in sequence, so that the flocculant in the storage bin 303 is intermittently replenished into the linkage shaft 211 to avoid clogging the nozzle 214; Step 7: Rotate and stir; When the sealing plate 304 moves, the threaded rod 308 moves synchronously at the lower end of the storage bin 303, thereby driving the rotating sleeve 310 to rotate, and synchronously causing the annular plate 311 and the wave edge plate 312 on the rotating sleeve 310 to rotate accordingly, stirring the flocculant in the storage bin 303 to prevent agglomeration and blockage of the discharge hole 314, thereby ensuring smooth discharge.

[0025] The complete usage steps and working principle of the above embodiment are as follows: The following is the working process of the rotary spreading mechanism 2 for rotating and spreading the flocculant: During the process of introducing the wastewater after preliminary screening into the flotation machine body 1 for treatment, the drive motor 202 starts to run synchronously. Since the drive motor 202 is fixedly mounted on the U-shaped support plate 201, and the U-shaped support plate 201 is fixedly mounted on the bottom of the flotation machine body 1, and the upper ends of the opposite sides of the U-shaped support plate 201 are rotatably connected with the rotating shaft 203, one of the rotating shafts 203 is fixedly connected to the output end of the drive motor 202. Therefore, when the drive motor 202 starts to run, it can drive the rotating shaft 203 connected to its output end to rotate synchronously with the upper end of the U-shaped support plate 201. Figure 2 and Figure 3As shown, since the outer walls of both sides of the air flotation machine body 1 are symmetrically slidably provided with moving frames 208, the outer surface of the rotating shaft 203 is fixedly provided with an extension plate 206, and the end of the extension plate 206 away from the rotating shaft 203 is provided with a lever 207 for rotation toward each other, and the lever 207 is slidably connected to the moving frame 208, when the driving motor 202 drives the rotating shaft 203 to rotate, the extension plate 206 synchronously performs a circular motion with the rotating shaft 203 as the axis, and through the provided lever 207, the moving frame 208 is moved in the air flotation machine body 1. The movable frame 208 is provided with a slide plate 209 on the top of the movable frame 208, and the slide plate 209 slides synchronously on the outer wall of the air floatation machine body 1, and a U-shaped fixing plate 210 is fixedly connected between the tops of the slide plates 209. During the horizontal reciprocating movement of the movable frame 208, the slide plate 209 will also slide synchronously on the outer wall of the air floatation machine body 1, and at this time, the U-shaped fixing plate 210 will also follow the upper part of the air floatation machine body 1 to perform horizontal reciprocating movement. Figure 2 , Figure 4 ,as well as Figure 8 As shown, a linkage shaft 211 is rotatably provided in the middle of the U-shaped fixed plate 210, and a through hole 212 is provided in the linkage shaft 211. The through hole 212 can be connected to the storage bin 303 to introduce the flocculant stored in the storage bin 303 into the linkage shaft 211, and a nozzle 214 is fixedly provided at the bottom of the linkage shaft 211. The bottom of the nozzle 214 is annularly and equidistantly provided with spray holes 215. The flocculant introduced through the through hole 212 can fall into the inside of the nozzle 214, and finally sprayed out through the spray holes 215 and fall on the surface of the wastewater inside the flotation machine body 1, as shown in FIG. Figure 4 As shown, since the bottom of the nozzle 214 is annularly and equidistantly fixed with arc-shaped inclined plates 216, and the arc-shaped inclined plates 216 are adapted to the spray holes 215 and installed below the spray holes 215, the inclination direction of the arc-shaped inclined plates 216 is always outward, and the flocculant sprayed through the spray holes 215 can be blocked and folded out by the inclination of the arc-shaped inclined plates 216, thereby forming an oblique angle, so that the flocculant is sprayed outward, while the U-shaped fixed plate 210 moves back and forth laterally, the linkage shaft 211 installed in the middle of the U-shaped fixed plate 210 cooperates with the nozzle 214 to move synchronously above the wastewater in the air flotation machine body 1, and the flocculant is sprayed back and forth laterally toward the surface of the wastewater, so that the surface of the wastewater can be continuously supplemented with the flocculant to react with the wastewater; like Figure 2 and Figure 4As shown, a bending frame 217 is fixedly provided on the top of the air flotation machine body 1, and a tooth plate 218 is fixedly provided on the side of the bending frame 217 facing the linkage shaft 211, and a driven gear 213 is fixedly provided on the outer surface of the linkage shaft 211, and the driven gear 213 and the tooth plate 218 are meshed and connected. Therefore, when the U-shaped fixing plate 210 drives the linkage shaft 211 to move synchronously above the air flotation machine body 1, the driven gear 213 can be driven to mesh and rotate on the tooth plate 218 by the meshing between the teeth. At this time, the rotation of the driven gear 213 is used. The linkage shaft 211 can be driven to rotate synchronously in the middle of the U-shaped fixed plate 210. When the flocculant is poured onto the wastewater surface from the air flotation machine body 1, the rotation of the linkage shaft 211 can be used to drive the nozzle 214 to rotate synchronously, so that the flocculant can be thrown onto the wastewater surface under the centrifugal effect, thereby increasing the uniform distribution of the flocculant in the wastewater. The outward tilting design of the arc-shaped inclined plate 216 can form an oblique angle on the flocculant input route, which can further help the flocculant to be better thrown outward under the rotation effect, thereby improving the throwing effect of the flocculant. In addition, if Figure 2 As shown, since the centrifugal shaft 205 is rotatably connected between the lower ends of the opposite sides of the U-shaped support plate 201, and the centrifugal shaft 205 and the lower end of the air flotation machine body 1 are rotatably connected, and the two ends of the centrifugal shaft 205 are respectively connected by two symmetrical transmission members 204 and two rotating shafts 203, and one of the rotating shafts 203 is fixedly connected to the output end of the driving motor 202, when the driving motor 202 drives one of the rotating shafts 203 to rotate, the transmission of the transmission member 204 can drive the centrifugal shaft 205 to rotate synchronously on the U-shaped support plate 201. At this time, the middle part of the centrifugal shaft 205 rotates inside the air flotation machine body 1, disturbing the wastewater inside the air flotation machine body 1, centrifugalizing the wastewater, helping to break the laminar flow state in the wastewater, and making different parts of the wastewater The mixing is more uniform, so that the wastewater is mixed more quickly and thoroughly in the flotation machine, thereby shortening the processing time and improving the overall processing efficiency. The other end of the centrifugal shaft 205 away from the driving motor 202 is connected to the rotating shaft 203 through the transmission member 204, and it will also rotate synchronously. At this time, the two extension plates 206 rotate at the same time to drive the lever 207 to move the moving frame 208 on the outer walls of both sides of the flotation machine body 1 to slide back and forth horizontally, so that the movement frequency of the two ends of the U-shaped fixed plate 210 is always synchronized. The rotating shaft 203 is connected to the centrifugal shaft 205 through the transmission member 204. While realizing the rotation and spraying of the flocculant, it can also act from the inside of the wastewater, increase the diversity of functions, and reasonably use the power source to effectively save energy consumption; Please refer to the above working process Figures 1 to 9 .

[0026] The following is the working process of the synchronous auxiliary feeding mechanism 3 to assist in feeding the flocculant: In the process that the U-shaped fixing plate 210 drives the linkage shaft 211 to move horizontally back and forth above the air flotation machine body 1, as shown in FIG. Figures 5 to 9 As shown, the storage bin 303 is fixed to the U-shaped support plate 201 through the bending rod 302 and is arranged above the air flotation machine body 1, and the lower end of the storage bin 303 is symmetrically penetrated by a sealing sliding arrangement with a sealing plate 304 (it should be noted that the two sealing plates 304 always form a mutually abutting connection relationship), the sealing plates 304 are provided with arc-shaped notch grooves 305 and profiling grooves 306 on the opposite sides, and the arc-shaped notch grooves 305 and the profiling grooves 306 are interconnected, the two arc-shaped notch grooves 305 are connected to form a circular through hole, and the two profiling grooves 306 are connected to form an annular groove (matching the shape of the driven ring 301), and the driven ring 301 is provided on the outer surface of the upper end of the linkage shaft 211. , and the driven ring 301 is slidably set in the annular groove (i.e., between the two profiling grooves 306), and the linkage shaft 211 is rotatably set in the circular through hole (i.e., between the two arc-shaped notched grooves 305). When the tooth plate 218 drives the driven gear 213 to rotate, the upper end of the linkage shaft 211 will rotate between the two arc-shaped notched grooves 305, and the driven ring 301 will slide between the two profiling grooves 306, so that a tight connection is formed between the linkage shaft 211 and the sealing plate 304. The design of the driven ring 301 can further strengthen the connection between the linkage shaft 211 and the sealing plate 304. When the linkage shaft 211 rotates and the horizontal line position changes, it can push the sealing plate 304 to move synchronously, such as Figure 5 and Figure 6 As shown, since side plates 307 are provided on the top of opposite ends of the sealing plates 304, and a return spring 309 is fixedly connected between the side plates 307 and the outer wall of the storage bin 303, the two sealing plates 304 can always maintain abutment with each other under the elastic force of the return spring 309, and with the movement of the linkage shaft 211, the lateral positions of the two sealing plates 304 at the lower end of the storage bin 303 can be changed without changing the abutment relationship between the two sealing plates 304. Since a through hole 212 is provided in the linkage shaft 211, and discharge holes 314 are equidistantly provided at the lower end of the storage bin 303, with the coordinated movement of the linkage shaft 211 on the sealing plates 304, the linkage shaft 211 can be connected with the discharge holes 314 at different positions in turn, and the flocculant stored in the storage bin 303 can be discharged into the through hole 212, and the flocculant can be replenished and discharged intermittently to avoid the situation where excessive flocculant in the nozzle 214 is blocked due to continuous discharge. like Figure 5 , Figure 6 , Figure 8 as well as Fig. 9As shown, a threaded rod 308 is fixedly arranged between the two side plates 307, and the threaded rod 308 is movably arranged at the lower end of the storage bin 303, and a fixing frame 313 is symmetrically fixedly arranged inside the storage bin 303, and a rotating sleeve 310 is rotatably arranged between the fixing frames 313, and the threaded rod 308 is threadedly connected with the rotating sleeve 310 (that is, the rotating sleeve 310 is threadedly arranged on the outer surface of the threaded rod 308). When the two sealing plates 304 move laterally, the threaded rod 308 will synchronously move through the lower end of the storage bin 303. Through the threaded connection method and the use of the fixing frame 313 to limit the lateral position of the rotating sleeve 310, the rotating sleeve 310 can be driven to rotate between the two fixing frames 313 when the threaded rod 308 moves. In addition, because the outer surface of the rotating sleeve 310 is equidistantly fixed with annular plates 311, and the outer surface of the annular plate 311 is annularly and equidistantly arranged with a plurality of wavy edge plates 312, according to Figure 6 It can be seen that the main body of the wave edge plate 312 is a rectangular plate, and the edge of one end of the rectangular plate away from the annular plate 311 is set to be wavy. When the threaded rod 308 moves to drive the rotating sleeve 310 to rotate, the annular plate 311 rotates synchronously, and the multiple wave edge plates 312 are driven to rotate synchronously with the rotating sleeve 310 as the axis, and the flocculant at the lower end of the storage bin 303 is moved to promote the discharge of the flocculant and avoid the blockage of the flocculant when the storage bin 303 is discharged. At the same time, the wave-shaped design of the edge of the wave edge plate 312 can produce a more complex and changeable material flow pattern compared with a straight edge, thereby generating more eddies and turbulence, and generating stronger disturbances, which are helpful to break up the flocculant clumps or agglomerates formed in the storage bin 303 and prevent these clumps from clogging the discharge hole 314. Please refer to the above working process Figures 1 to 9 .

[0027] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flotation machine for wastewater treatment, comprising a flotation machine body (1), characterized in that: Also included are: A rotary spreading mechanism (2) for performing rotary spreading of the flocculant; The synchronous auxiliary feeding mechanism (3) is used for assisting the feeding of the flocculant.

2. The air flotation machine for wastewater treatment according to claim 1, characterized in that: The rotary throwing mechanism (2) comprises a U-shaped support plate (201) fixedly connected to the bottom of the air flotation machine body (1); the upper end of the U-shaped support plate (201) is symmetrically rotatably connected to a rotating shaft (203); one side outer wall of the U-shaped support plate (201) is fixedly connected to a driving motor (202); and the output end of the driving motor (202) is fixedly connected to one of the rotating shafts (203); the lower end of the U-shaped support plate (201) is rotatably connected to a centrifugal shaft (205) between the opposite sides, and the centrifugal shaft (205) is rotatably connected to the air flotation machine body (1); and a transmission member (204) is symmetrically transmission-connected between the outer surface of the centrifugal shaft (205) and the rotating shaft (203).

3. The air flotation machine for wastewater treatment according to claim 2, characterized in that: The outer surfaces of the opposite ends of the rotating shaft (203) are fixedly connected to extension plates (206), and the opposite sides of the extension plates (206) are fixedly connected to levers (207), and the levers (207) are arranged away from the rotating shaft (203). The outer walls of both sides of the air flotation machine body (1) are symmetrically slidably connected to movable frames (208), and the movable frames (208) are slidably connected to the levers (207). The top of the movable frame (208) is fixedly connected to a slide plate (209), and the slide plate (209) is slidably connected to the outer wall of the air flotation machine body (1). The slide plate (209) is fixedly connected to the outer wall of the air flotation machine body (1). 9) A U-shaped fixing plate (210) is fixedly connected between the tops, a linkage shaft (211) is rotatably connected to the middle of the U-shaped fixing plate (210), a through hole (212) is provided in the linkage shaft (211), a nozzle (214) is fixedly connected to the bottom of the linkage shaft (211) through the through hole (212), and the nozzle (214) is arranged below the U-shaped fixing plate (210), and nozzle holes (215) are equidistantly provided in an annular shape at the bottom of the nozzle (214), and an arc-shaped inclined plate (216) is fixedly connected to the bottom of the nozzle (214) in an annular shape at an equidistant shape.

4. The air flotation machine for wastewater treatment according to claim 3, characterized in that: A driven gear (213) is fixedly connected to the outer surface of the linkage shaft (211), and the driven gear (213) is arranged above the U-shaped fixing plate (210). A bending frame (217) is fixedly connected to the top of the air flotation machine body (1), and a toothed plate (218) is fixedly connected to the side of the bending frame (217) facing the driven gear (213), and the toothed plate (218) is meshingly connected to the driven gear (213).

5. The air flotation machine for wastewater treatment according to claim 1, characterized in that: The synchronous material assisting mechanism (3) comprises bending rods (302) symmetrically fixedly connected to both ends of the U-shaped support plate (201), a material storage bin (303) is fixedly connected between the bending rods (302), and the material storage bin (303) is arranged above the linkage shaft (211), and material discharge holes (314) are equidistantly opened at the lower end of the material storage bin (303), and a sealing plate (304) is symmetrically penetrated and slidably connected to the lower end of the material storage bin (303), and the sealing plate (304) Used to block the feed hole (314), the sealing plate (304) is symmetrically provided with arc-shaped notch grooves (305) and profiling grooves (306) on opposite sides, and the arc-shaped notch grooves (305) are communicated with the profiling grooves (306), and a driven ring (301) is fixedly connected to the outer surface of the upper end of the linkage shaft (211), the linkage shaft (211) is rotatably connected between the arc-shaped notch grooves (305), and the driven ring (301) is slidably connected between the profiling grooves (306).

6. The air flotation machine for wastewater treatment according to claim 5, characterized in that: A side plate (307) is symmetrically fixedly connected to the top of the end away from the sealing plate (304), a threaded rod (308) is fixedly connected between the side plates (307), and the threaded rod (308) is movably connected to the storage bin (303), and a return spring (309) is symmetrically fixedly connected between the outer walls on both sides of the storage bin (303) and the side plates (307), and the return spring (309) is sleeved on the outside of the threaded rod (308).

7. The air flotation machine for wastewater treatment according to claim 6, characterized in that: A fixing frame (313) is symmetrically fixedly connected between the inner walls on both sides of the lower end of the storage bin (303), a rotating sleeve (310) is rotatably connected between the fixing frames (313), and the rotating sleeve (310) is threadedly connected to the outer surface of the threaded rod (308), an annular plate (311) is equidistantly fixedly connected to the outer surface of the rotating sleeve (310), and a wave edge plate (312) is annularly and equidistantly fixedly connected to the outer surface of the annular plate (311).

8. A method for using an air flotation machine for wastewater treatment, applied to the air flotation machine for wastewater treatment according to any one of claims 1 to 7, characterized in that: The method of use comprises the following steps: Step 1: Start and initial movement; The driving motor (202) is started to drive the rotating shaft (203) to start rotating, and then the movable frame (208) starts to slide horizontally on the outer walls of both sides of the air flotation machine body (1) through the lever (207); Step 2: Linked movement and spraying; As the movable frame (208) slides, the U-shaped fixed plate (210) and the linkage shaft (211) on the upper portion thereof move synchronously above the wastewater treatment area, and the flocculant in the linkage shaft (211) is sprayed out through the spray head (214) and forms an oblique angle under the guidance of the arc-shaped inclined plate (216), covering the surface of the wastewater outwards; Step 3: Rotate and sprinkle; The driven gear (213) on the linkage shaft (211) meshes with the toothed plate (218), and as the U-shaped fixed plate (210) moves, the driven gear (213) drives the linkage shaft (211) to rotate synchronously, and the rotating spray head (214) causes the flocculant to be more evenly sprinkled onto the wastewater surface under the centrifugal effect, thereby enhancing the mixing effect; Step 4: Internal stirring; At the same time, the driving motor (202) drives the centrifugal shaft (205) to rotate via the transmission member (204), and the centrifugal shaft (205) stirs the wastewater inside the air flotation machine body (1), thereby breaking the laminar flow, promoting uniform mixing of the wastewater, and improving treatment efficiency; Step 5: Mobile unloading When the linkage shaft (211) moves above the wastewater, the driven ring (301) at its upper end cooperates with the contoured groove (306) on the sealing plate (304), pushing the sealing plate (304) to move laterally at the lower end of the storage bin (303), thereby changing the relative position with the discharge hole (314), and realizing intermittent mobile discharge; Step 6: Intermittent supplementation; As the linkage shaft (211) moves, the sealing plate (304) is aligned with the discharge holes (314) at different positions in sequence, so that the flocculant in the storage bin (303) is intermittently replenished into the linkage shaft (211), thereby avoiding clogging of the nozzle (214); Step 7: Rotate and stir; When the sealing plate (304) moves, the threaded rod (308) moves synchronously at the lower end of the storage bin (303), thereby driving the rotating sleeve (310) to rotate, and synchronously causing the annular plate (311) and the wave edge plate (312) on the rotating sleeve (310) to rotate accordingly, thereby stirring the flocculant in the storage bin (303), preventing agglomeration and clogging of the discharge hole (314), and ensuring smooth discharge of the material.

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