Experimental mechanical stirring type flotation machine

Abstract

The invention relates to the technical field of experimental type flotation machines, in particular to an experimental type mechanical stirring type flotation machine which comprises a base, a supporting column, a stirrer, a water inlet pipe, a water tank, a flow guide plate, a collecting box, a scraping plate, a driving motor, a gathering assembly, a flow guide assembly and a backflow assembly. A flow guide assembly is installed at the rear end and pushes foam accumulated at the rear end to the middle end, a gathering assembly is installed at the middle end and pushes foam pushed to the middle end to the front end, backflow assemblies are symmetrically installed at the middle end along the center line of the water tank, and water flow at the front end is guided to flow towards the rear end along the two sides of the water tank. A scraping plate for scraping foam is mounted at the front end of the stirrer, and the scraping plate, the gathering assembly and the flow guide assembly are driven by a driving motor, so that the foam accumulated behind the stirrer is scraped out, and the scraping efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of experimental flotation machine technology, specifically to an experimental mechanical stirring flotation machine. Background Technology

[0002] Flotation machines, as a common industrial device, are widely used in fields such as the screening of slag particles.

[0003] Existing flotation equipment can be broadly classified into four categories: single-cell, multi-cell, hanging-cell, and precision. Among them, the hanging-cell type is the most commonly used. Therefore, a hanging-cell mechanical agitation flotation machine is selected. Its working process involves placing slag or slurry in a water tank, introducing water through the inlet pipe to reach a set height, and generating more bubbles by drawing in external gas and stirring with an agitator. The bubbles carry the target substance to the surface, forming a foam enrichment process. At this point, the foam is scraped into a collection box by a scraper, completing the entire flotation machine's working process. However, in most experimental flotation machines, some foam accumulates behind the agitator due to factors such as water flow direction, making it impossible for the scraper to scrape it. This results in low foam scraping efficiency, increased energy consumption, and prolonged scraping time.

[0004] Therefore, in order to improve scraping efficiency and to discharge the foam accumulated behind the agitator forward, an experimental mechanical agitation flotation machine was proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an experimental mechanical stirring flotation machine that solves the problem of low scraping efficiency of foam accumulating behind the agitator. Through a scraper, a drive motor, a flow guiding component, a gathering component, and a reflux component, the liquid in the tank is directionally flowed by the gathering component, the flow guiding component, and the reflux component under the driving force of the drive motor. This not only scrapes out the foam accumulating at the rear end, but also improves the scraping efficiency of the scraper.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An experimental mechanically stirred flotation machine includes a base, a support column, a stirrer, an inlet pipe, a water tank, a guide plate, a collection box, a scraper, a drive motor, a gathering component, a guiding component, and a reflux component. The water tank is divided into a front end, a middle end, and a rear end from the guide plate to the support column. The rear end is equipped with a guiding component to push the foam accumulated at the rear end toward the middle end. The middle end is equipped with a gathering component to push the foam pushed to the middle end toward the front end. A reflux component is symmetrically installed along the center line of the water tank at the middle end to guide the water flow at the front end to flow along both sides of the water tank toward the rear end. The front end is equipped with a scraper to scrape off the foam. The scraper, the gathering component, and the guiding component are driven by the drive motor.

[0008] It is known that there are many types of scrapers for scraping foam. In the context of experimental applications, there are generally two main types of scraper movement in experimental flotation machines: one is rotary, which uses the rotation of the shaft to drive the scraper to complete the scraping process; the other is push-type, which uses a push rod mechanism to make the scraper reciprocate between the agitator and the guide plate, pushing the foam out of the guide plate and into the collection box. Compared with the above two solutions, this solution has two drawbacks during the scraping process: first, it cannot scrape the foam behind the agitator; second, the reciprocating motion will push the foam at the front back to the rear, thus affecting the overall scraping efficiency.

[0009] Preferably, the scraper includes a top plate, a bottom plate, and a torsion spring. The support column has a mounting groove, and the drive motor is installed in the mounting groove. Two support frames are symmetrically fixedly installed along the center line of the support column. A drive shaft is rotatably mounted on each support frame, with one end of the drive shaft extending to the outside of the support frame. A pulley is fixedly mounted on both the drive shaft and the drive motor, and a belt is wound around both pulleys. A drive rod is fixedly mounted on the free end of the drive shaft, and a rotating shaft is rotatably mounted on the drive rod. A top plate is fixedly mounted on the rotating shaft, and the free end of the top plate is connected to... The bottom plate and the top plate are connected by torsion springs on both sides. When not scraped, the maximum opening angle between the top plate and the bottom plate is 150°, and when in contact with the guide plate, the opening angle between the top plate and the bottom plate is 100°. The guide plate includes an inclined plate and protrusions. An overflow groove is opened at the front end of the water tank, and an inclined plate is installed on the overflow groove. An arc-shaped plate is installed on the inner wall of the water tank near the overflow groove. Multiple protrusions that cooperate with the bottom plate are installed on the inclined plate. The protrusions are elliptical. Multiple drainage holes are opened at the bottom end of the top plate. When the top plate contacts the arc-shaped plate, the drainage holes are all vertically facing the bottom of the water tank.

[0010] In the above scheme, when the drive motor is activated, the transmission shaft rotates via the conveyor belt. The drive rod fixedly installed on the transmission shaft drives the rotating shaft to begin rotating. Under its own weight, the scraper always faces the water tank. When the scraper just touches the foam, its elliptical trajectory causes the arc surface of the scraper to propel the guide plate. When the top plate contacts the arc plate during the foam scraping process, there is a short upward lifting process. During this process, the drainage holes on the bottom plate drain the water accumulated between the top plate and the arc plate, preventing the foam from being removed by the water flow. At this time, the scraper completes the gathering and scraping of the foam at the front end. When the scraper moves to the guide plate, the torsion spring causes the scraper to vibrate when the bottom plate contacts the elliptical protrusion on the guide plate, causing the foam on the scraper to fall off. This allows the scraped foam to flow onto the guide plate, where the elliptical protrusion guides the foam to flow downwards and into the collection box along with the guide plate.

[0011] As can be seen, there are many foam-gathering components that can gather foam in a water tank. Considering the current usage scenario, the location of the foam, and the power source for the movement of the foam-gathering component, the solution designed in this invention is adopted. The rotating shaft itself rotates to drive the foam-gathering component to achieve the same rotation. This design not only makes reasonable use of the kinetic energy of the rotating shaft, but also allows it to work with the scraper to efficiently scrape the foam.

[0012] Preferably, the gathering component includes a driven shaft, a rocker arm, a fixed shaft, a driven pulley, a mounting rod, and shaped blades. The driven shaft is mounted on the support frame, and a driven pulley is fixedly mounted on one end of the driven shaft near the support frame. A rocker arm is fixedly mounted on the free end of the driven shaft, and a fixed shaft is mounted on the free end of the rocker arm. A mounting rod that cooperates with the rotating shaft is mounted on the fixed shaft. Multiple floating grooves are formed on the end face of the mounting rod near the agitator. A slide rail is installed in the floating groove, and a slider that cooperates with the shaped blades is slidably connected to the slide rail. The center of gravity of the shaped blades is located at the bottom, and all the shaped blades point towards the guide plate. The shaped blades complete an elliptical trajectory movement under the driving force of the rotating shaft.

[0013] In the above scheme, since the length and shape of the driving rod and the driven rod are equal, the rotating shaft and the mounting rod can complete a circular rotation. When the rotating shaft starts to rotate, it will drive the scraper and the shaped blades to complete an elliptical motion trajectory. At this time, there will be no defect of the reciprocating flat-push scraper scraping the foam at the front to the back. When the shaped blades move, they will push the foam pushed to the middle of the arc blades to continue to the front, and make the foam near the partition gather in the middle. The floating groove opened on the mounting rod, with the cooperation of the slide rail and the slider, allows each shaped blade to be close to the liquid surface to complete the propulsion of the foam.

[0014] It is known that there are many guiding components that can push the foam accumulated at the rear of the agitator to the front, such as using an air gun to blow the foam. However, compared with this solution, firstly, when using an air gun to blow the foam, it will cause the bubbles to break and the particles to sink, resulting in low efficiency of the scraper to scrape the foam, and the time for the enriched bubbles to form is too long, which increases the energy consumption of the equipment. The arc-shaped blades used in this solution have the following advantages: firstly, they can reduce the eddies generated by the rotation of the agitator; secondly, they can push the foam accumulated at the rear of the agitator towards the middle; and thirdly, the change in the thickness of the arc-shaped blades can prevent too much foam from being broken when the arc-shaped blades rotate.

[0015] Preferably, the flow guiding assembly includes a follower shaft and arc-shaped blades. The follower shaft is rotatably mounted on the support frame. Four arc-shaped blades are fixedly mounted on both ends of the follower shaft. The end of the arc-shaped blade facing the stirrer is an inclined arc shape. A second pulley is fixedly mounted on the driven shaft and the end of the follower shaft near the support frame. A second belt is wound around the two second pulleys.

[0016] In the above scheme, when the driven shaft rotates, the belts on the driven shaft and the follower shaft begin to rotate, driving the follower shaft and the arc-shaped blades to rotate clockwise. Since one of the arc-shaped blades will always be inserted into the liquid when rotating, and the arc-shaped blades are inclined towards the agitator, they also act as fins while pushing the foam at the rear end towards the middle end when the agitator rotates. When the agitator rotates, the direction of the water flow pushed by one end of the arc-shaped blades is always opposite to the direction of the water flow generated by the agitator. The two water flows in different directions collide with each other, reducing the influence of the eddy on the amount of foam generated. When the arc-shaped blades inclined towards the agitator rotate, they will push the foam accumulated at the rear end more concentrated towards the middle end. The change in the thickness difference between the front and rear ends of the arc-shaped blades is to prevent the arc-shaped blades from causing a large number of foams to break down when rotating.

[0017] It is known that there are many reflux components that can achieve liquid reflux in the water tank. However, considering that the main purpose of this invention is to scrape out the foam accumulated at the rear end and increase the scraping efficiency of the scraper, a partition and an arc plate are set up and a water outlet is opened to achieve liquid reflux, while also playing a role in re-gathering the foam, thereby indirectly improving the scraping efficiency of the scraper on the foam.

[0018] Preferably, the reflux assembly includes baffles. Two baffles are symmetrically installed in the water tank along the center line of the agitator. The bottom of the baffle near the guide plate has a water outlet. The baffle and the guide plate are at the same height. The bottom surface of the water tank is an inclined surface. The height of the inclined surface decreases sequentially from the arc plate to the support column. An arc plate that cooperates with the baffle is fixedly installed on the inner wall of the front end of the water tank. The water outlet is opened at the connection between the baffle and the arc plate, and one end of the water outlet is arc-shaped.

[0019] In the above scheme, when the foam at the rear end is pushed to the middle, the foam is blocked by the baffle and cannot flow to both sides of the water tank. Under the action of the arc plate, the foam dispersed in the two baffles gathers towards the front end under the action of the upper water flow and the push of the shaped blades. The lower water flow is discharged from the outlet hole along the arc of the arc plate and guided to the rear end along both sides of the water tank. During the discharge process, it will carry the solid particles on the inclined surface back to the rear end and continue to generate foam as the agitator rotates.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Existing experimental mechanical agitation flotation machines generally suffer from low scraping efficiency and the inability to effectively scrape away foam accumulated at the rear end. These problems result in long operating times, high energy consumption, and disruption to experimental progress. To improve these shortcomings, the driving force of the drive motor, combined with the synergistic effect of the flow guiding component, the gathering component, the recirculation component, and the scraper, is used to push the foam accumulated at the rear end towards the middle end during the foam generation, enrichment, and scraping processes of the flotation machine. The gathering component then pushes the foam from the middle end towards the front end, and the scraper efficiently scrapes away the foam, improving scraping efficiency while reducing the energy consumption generated by the equipment.

[0022] 2. The advantages of the components and their unique shapes and positions in this invention are as follows: First, the design of the arc-shaped blades on the follower shaft, with variations in their curvature, thickness, and size, respectively pushes the foam accumulated at the rear end towards the middle, reduces the number of broken foam particles, weakens the eddy current, and enables the liquid in the tank to circulate, indirectly improving the efficiency of the scraper in removing foam. Second, the design of the floating, oriented blades better gathers the foam from the middle towards the front end when adapting to different liquid level differences, increasing the scraping efficiency of the scraper. Third, the arc shape... The combination of the plate and the baffle allows foam to be gathered between the two baffles. Under the flow of water in the upper layer of the tank, the foam is better concentrated at the front of the tank by the curved plate. The water outlet at the junction of the baffle and the curved plate guides the liquid between the two baffles to flow along both sides of the tank towards the rear. As the liquid flows, it carries away solid particles deposited on the inclined surface towards the rear, where they are re-generated by friction with the gas under the rotation of the agitator, indirectly improving the efficiency of the scraper in removing foam. Fourthly, the scraper fixedly installed on the rotating shaft consists of a top plate and a... The bottom plate and top plate have an arc-shaped surface at one end near the guide plate, which mates with the arc-shaped plate, and a flat surface at the other end. A torsion spring connects the flat surface to the bottom plate. When the bottom plate contacts the arc-shaped plate, the torsion spring provides support to the bottom plate, preventing foam from flowing out between the scraper and the arc-shaped plate and increasing the scraping efficiency of the scraper. Fifth, when the bottom plate contacts the guide plate, the elliptical protrusions installed on the guide plate slide a short distance against the bottom plate. As the bottom plate passes the elliptical protrusions, the height difference on the guide plate, combined with the action of the torsion spring, causes the scraper to vibrate, thus increasing the scraping efficiency of the foam. The foam is accelerated to fall off, preventing any remaining foam from returning to the water tank, which directly improves the scraping efficiency of the scraper; sixth, the bottom of the top plate of the scraper has a drain hole. When the top plate rises and contacts the curved plate, the drain hole will drain the liquid between the scraper and the curved plate, preventing the water remaining between the top plate and the curved plate from overflowing to both sides as the top plate moves upward, and allowing the drained water to return to the water tank, thus slowing down the change in the liquid level in the water tank, indirectly improving the scraping efficiency of the scraper, and reducing the impact of the liquid level before it reaches equilibrium when the liquid flows in through the inlet pipe.

[0023] 3. The gathering component, guiding component, and recirculation component configured in this invention are driven by a drive motor to transmit power to the scraper, gathering component, and guiding component. With the cooperation of the recirculation component, the synergistic effect of the scraper, gathering component, and guiding component is improved. After the guiding component pushes the foam accumulated at the rear end towards the middle end, the gathering component continues to push the foam pushed to the middle end towards the front end. The cooperation between the gathering component and the recirculation component makes the foam pushed to the front end more concentrated in the scraping area of ​​the scraper, and discharges the liquid between the two partitions from the water outlet, so that the liquid flows along both sides of the water tank towards the rear end, completing the circulation of the liquid and improving the scraping efficiency of the scraper. The torsion spring on the scraper improves the scraping efficiency of the next foam scraping during the vibration of the scraper. Attached Figure Description

[0024] Figure 1 This is an isometric structural diagram of the flotation machine of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall left-leaning structure of the flotation machine of the present invention;

[0026] Figure 3 This is a schematic diagram showing the connection relationship between the scraper, the gathering component, and the flow guiding component of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the scraper scraping foam downwards according to the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the scraper and guide plate of the present invention.

[0029] Figure 6 This is a schematic diagram of the structure of the scraper of the present invention when it rotates above the liquid surface;

[0030] Figure 7 This is a cross-sectional view of the floating groove inside the mounting rod of the present invention;

[0031] Figure 8 This is a cross-sectional view of the partition, water outlet, and inclined surface of the present invention;

[0032] Figure 9 This is a schematic diagram of the drainage hole structure when the base plate of the present invention is in contact with the arc plate.

[0033] In the picture:

[0034] 1. Base;

[0035] 2. Support column; 20. Support frame; 21. Mounting slot;

[0036] 3. Mixer;

[0037] 4. Water inlet pipe;

[0038] 5. Water tank; 50. Rear end; 51. Middle end; 52. Front end; 53. Curved plate; 54. Overflow trough;

[0039] 6. Deflector; 60. Inclined plate; 61. Protrusion;

[0040] 7. Collection box;

[0041] 8. Scraper; 80. Top plate; 800. Drainage hole; 801. Curved surface; 81. Torsion spring; 82. Base plate;

[0042] 9. Drive motor;

[0043] 10. Converging assembly; 100. Driven shaft; 101. Rocker arm; 102. Fixed shaft; 103. Mounting rod; 1030. Floating groove;

[0044] 1031. Slide rail; 1032. Slider; 104. Alignment blades;

[0045] 11. Flow guide assembly; 110. Follower shaft; 111. Arc-shaped blade;

[0046] 12. Reflux assembly; 120. Baffle plate; 1200. Water outlet; 121. Inclined surface;

[0047] 13. Belt pulley one;

[0048] 14. Belt 1;

[0049] 15. Drive shaft;

[0050] 16. Active lever;

[0051] 17. Shaft;

[0052] 18. Belt pulley two;

[0053] 19. Belt Two. Detailed Implementation

[0054] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Compared with the implementation schemes in the present invention, all other solutions obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Please see Figures 1 to 9 This invention provides an experimental mechanical stirring flotation machine, the technical solution of which is as follows:

[0056] The experimental mechanical stirring flotation machine designed in this invention includes a base 1, a support column 2, a stirrer 3, an inlet pipe 4, a water tank 5, a guide plate 6, a collection box 7, a scraper 8, a drive motor 9, a gathering assembly 10, a guiding assembly 11, a reflux assembly 12, a first pulley 13, a first belt 14, a drive shaft 15, a drive rod 16, a rotating shaft 17, a second pulley 18, and a second belt 19. The support column 2 includes a support frame 20 and a mounting groove 21. The water tank 5 includes a front end 52, a middle end 51, a rear end 50, an arc-shaped plate 53, and an overflow groove 54. The scraper 8... The components include a top plate 80, a torsion spring 81, and a bottom plate 82. The gathering assembly 10 includes a driven shaft 100, a swing rod 101, a fixed shaft 102, a mounting rod 103, and a shaped vane 104. The flow guiding assembly 11 includes a follower shaft 110 and an arc-shaped vane 111. The return assembly 12 includes a partition 120 and an inclined surface 121. The top plate 80 includes a drain hole 800 and an arc surface 801. The mounting rod 103 includes a floating groove 1030, a slide rail 1031, and a slider 1032. The partition 120 includes a water outlet hole 1200.

[0057] As one embodiment of the present invention, refer to Figure 1 or Figure 2 The base 1, support column 2, agitator 3, inlet pipe 4, water tank 5, guide plate 6, collection box 7, scraper 8, and drive motor 9 together constitute the main body of the flotation machine. The water tank 5 is divided into a front end 52, a middle end 51, and a rear end 50 from the guide plate 6 to the support column 2. The rear end 50 is equipped with a flow guiding component 11. The rotation of the arc-shaped blades 111 pushes the foam accumulated at the rear end 50 toward the middle end 51. The middle end 51 is equipped with a gathering component 10, which, through the arrangement of blades... The plate 104 pushes the foam pushed to the middle 51 towards the front end 52. The middle 51 is symmetrically equipped with a return flow component 12 along the center line of the water tank 5, which guides the water flow at the front end 52 to flow along both sides of the water tank 5 towards the rear end 50. This allows the water flow in the water tank 5 to complete the circulation flow, while also allowing the foam between the two partitions 120 to be scraped off by the scraper 8. The front end 52 is equipped with a scraper 8 to scrape off the foam. The scraper 8, the gathering component 10, and the guiding component 11 are driven by the drive motor 9.

[0058] As one embodiment of the present invention, refer to Figure 2 or Figure 3The support column 2 has an installation groove 21, and the drive motor 9 is installed in the installation groove 21. Two support frames 20 are symmetrically fixedly installed on the support column 2 along the center line. A drive shaft 15 is rotatably installed on the support frame 20, and one end of the drive shaft 15 extends to the outside of the support frame 20. Pulleys 13 are fixedly installed on both the drive shaft 15 and the drive motor 9. The two pulleys 13 are on the same plane, and a belt 14 is wound around both pulleys 13. The rotation of the drive motor 9 causes the drive shaft 15 to rotate through the belt 14. An active rod 16 is fixedly installed on the free end of the drive shaft 15. The rotation of the drive shaft 15 will drive the active rod 16 to rotate together. A rotating shaft 17 is rotatably installed on the active rod 16. A top plate 80 is fixedly installed on the rotating shaft 17. When the rotating shaft 17 rotates with the active rod 16... When in motion, the scraper 8, under its own weight, causes the rotating shaft 17 to rotate within the drive rod 16. Without external interference, the scraper 8 remains vertically downward. The free end of the top plate 80 is connected to the bottom plate 82. The top plate 80 and the bottom plate 82 are connected by torsion springs 81 located on both sides. The front end 52 of the water tank 5 has an overflow groove 54, and an inclined plate 60 is installed on the overflow groove 54. Multiple protrusions 61, which cooperate with the bottom plate 82, are installed on the inclined plate 60. The protrusions 61 are elliptical. When the bottom plate 82 passes the elliptical protrusions 61 on the guide plate 6, the height difference formed on the guide plate 6 causes the torsion springs 81 to change the opening angle between the top plate 80 and the bottom plate 82, causing slight vibration between them. During this vibration, the foam adsorbed on the scraper 8 is dislodged, thereby improving the scraping efficiency of the scraper 8.

[0059] As one embodiment of the present invention, refer to Figure 3A driven shaft 100 is rotatably mounted on the support frame 20. A rocker arm 101 is fixedly mounted on the free end of the driven shaft 100. A fixed shaft 102 is rotatably mounted on the free end of the rocker arm 101, and a mounting rod 103 that cooperates with the rotating shaft 17 is mounted on the fixed shaft 102. When the rotating shaft 17 rotates, it will drive the mounting rod 103 to rotate together. The rocker arm 101 connected to the mounting rod 103 drives the transmission shaft 15 to rotate. Under the driving force of the rotating shaft 17, the mounting rod 103 and the rocker arm 101 are combined to make the mounting rod 103 complete reciprocating motion. Multiple floating grooves 1030 are opened on the end face of the mounting rod 103 near the stirrer 3. A slide rail 1031 is installed in the floating groove 1030. A slider 1032, which cooperates with the shaped vane 104, is slidably connected to 1031. The shaped vane 104 is mounted on the slider 1032. The center of gravity of the shaped vane 104 is located at the bottom. This arrangement allows the shaped vane 104 to more efficiently push the foam to the front end 52. The shaped vanes 104 all point towards the guide plate 6. During the process of the shaped vane 104 pushing towards the front end 52, the shaped vane 104 simultaneously gathers the foam located near the partition plate 120 inward under the flow of water. The shaped vane 104 completes an elliptical trajectory movement under the driving force of the mounting rod 103, avoiding the shaped vane 104 from staying in the water tank 5. In the reciprocating motion, it also brings the foam to the rear end 50.

[0060] As one embodiment of the present invention, refer to Figure 2 or Figure 4A follower shaft 110 is rotatably mounted on the support frame 20. Four arc-shaped blades 111 are fixedly mounted at both ends of the follower shaft 110. The end of the blade facing the stirrer 3 is inclined arc-shaped. When the arc-shaped blades 111 rotate clockwise, they push the foam accumulated at the rear end 50 towards the middle end 51, near the area between the two row blades 104, thus better enabling the row blades 104 to push the foam towards the front end 52. The end of the arc-shaped blade 111 away from the follower shaft 110 is pointed, and it gradually thickens towards the follower shaft 110. The end of the arc-shaped blade 111 near the stirrer 3 is the small diameter end, and the end away from the stirrer 3 is the large diameter end. At this time, when the arc-shaped blades 111 rotate, they can avoid breaking too much foam. The angle between the intersection point formed by the arc-shaped blades 111 entering and leaving the liquid surface and the axis is α. The included angle is β. When this condition is met, at least one arc blade 111 will be inserted below the liquid surface. When the arc blade 111 rotates, regardless of whether the stirrer 3 rotates clockwise or counterclockwise, the arc blade 111 rotates clockwise and pushes the liquid in the water tank 5 to flow towards the front end 52. This ensures that the direction of the water flow pushed by the arc blade 111 at one end is opposite to the direction of the flow generated by the stirrer 3. When the two opposite water flows collide with each other, the eddy current generated by the stirrer 3 can be weakened. Because when the eddy current forms a certain scale, the foam generated will be greatly reduced, and the rotating water flow will make the foam extremely dispersed, reducing the scraping efficiency of the scraper 8. The driven shaft 100 and the follower shaft 110 are both fixedly installed with pulley 18 near the support frame 20. The two pulleys 18 are wound with belt 19. The rotation of the driven shaft 100 drives the follower shaft 110 to rotate through the rotation of belt 19.

[0061] As one embodiment of the present invention, refer to Figure 8 or Figure 9An arc-shaped plate 53 is fixedly installed on the inner wall of the front end 52 of the water tank 5. Two baffles 120 are symmetrically installed inside the water tank 5 along the center line of the stirrer 3, and the baffles 120 are 10mm to 20mm away from the sides of the water tank 5. A water outlet 1200 is opened at the bottom of the connection between the baffle 120 and the arc-shaped plate 53. Under the push of the blades and the row blades 104, the liquid pushed towards the front end 52 is discharged from the water outlet 1200 and flows towards the rear end 50 along the gap between the baffles 120 and the water tank 5. The baffles 120 are at the same height as the guide plate 6, so that the foam collected between the two baffles 120 can be discharged. Driven by the arc plate 53 and the upper water flow, the foam gathers towards the scraping area of ​​the front scraper 8 at the front end 52, allowing the scraper 8 to scrape more foam more efficiently. The bottom surface of the water tank 5 is an inclined surface 121, on which a baffle 120 is installed. The height of the inclined surface 121 decreases sequentially from the arc plate 53 to the support column 2. Driven by the backflow liquid, the solid particles deposited on the inclined surface 121 are carried back to the rear end 50 with the flow of the liquid. Under the action of the stirrer 3, they generate foam again through friction and are pushed towards the middle end 51 as the arc blades 111 rotate.

[0062] As one embodiment of the present invention, refer to Figure 6 or Figure 9 Multiple drainage holes 800 are provided at the connection between the top plate 80 and the bottom plate 82. During the movement of the bottom plate 82 against the arc plate 53, the bottom plate 82 will remain in contact with the arc plate 53 under the action of the torsion spring 81, so that the foam between the top plate 80 and the arc plate 53 will not overflow. At this time, the drainage holes 800 are all facing the bottom of the water tank 5. During the lifting process, a small amount of liquid between the top plate 80 and the arc plate 53 will flow back into the water tank 5 through the drainage holes 800. After the scraper 8 is lifted, the drainage holes 800 are all tilted towards the inside of the water tank 5.

[0063] Workflow: When people put medicine, slag and water into the water tank 5, when the static liquid level reaches the set height, the stirrer 3 is started to rotate by controlling the switch. During the stirring process, the fan blades of the stirrer 3 will release low-pressure gas drawn in from the outside. Under the rotation of the fan blades, the particles in the slag rub against each other with air and water, generating larger bubbles. The bubbles encapsulate the target particles that are insoluble in water and float to the surface. Through the foam enrichment process, a lot of foam accumulates above the liquid surface in the water tank 5. At this time, the drive motor 9 is started to rotate by controlling the switch, which drives the scraper 8, the sizing blades 104 and the follower shaft 110 to rotate, completing the scraping of foam.

[0064] Specifically, the scraper 8 is rotated by pulley 13 and belt 14, and the driven shaft 100 is rotated by the mounting rod 103 rotatably mounted on the rotating shaft 17. The driven shaft 100 and the follower shaft 110 are equipped with pulley 18, and belt 19 is wound around the two pulleys 18. The rotation of the driven shaft 100 gives the follower shaft 110 the power to rotate, and the arc blade 111 starts to rotate. The clockwise rotation of the arc blade 111 scrapes the foam accumulated at the rear end 50 towards the middle end 51. The arc design of the arc blade 111 not only reduces the damage to the foam, but also pushes the foam into the pushing range of the shaped blade 104, indirectly improving the scraping efficiency of the scraper 8. When the arc blade 111 rotates, the water flow pushed by the part inserted in the water weakens the vortex generated by the mixer, indirectly reducing the foam lost due to the vortex, and playing the role of the original fin plate.

[0065] The foam pushed to the middle 51 continues to be pushed towards the front 52 under the action of the shaped blades 104. Because the height of the liquid level will change with time and the rotation speed of the agitator 3 due to the rotation of the stirrer 3 and the scraping of the scraper 8, the shaped blades 104 are set to be floating type, which can better adapt to different liquid level differences. At the same time, the setting of the center of gravity of the shaped blades 104 can make it more effective to push the foam to the front 52. At this time, the scraper 8 pushes the foam at the front 52 along the arc plate 53 and through the guide plate 6. Then, the scraped foam is detached by the vibration of the torsion spring 81 and flows into the collection box 7 through the guide plate 6.

[0066] The scraper 8 consists of a top plate 80 and a bottom plate 82. The end of the top plate 80 closest to the guide plate 6 is an arc surface 801 that mates with the arc-shaped plate 53. The top plate 80 is connected to the bottom plate 82 via a torsion spring 81. When not scraping, the maximum opening angle between the top plate 80 and the bottom plate 82 is 150°. When the scraper 8 contacts the guide plate 6, the opening angle between the top plate 80 and the bottom plate 82 is 100°. Multiple drainage holes 800 are provided at the bottom end of the top plate 80. When the top plate 80 scrapes foam onto the arc-shaped plate 53, the bottom end of the top plate 80... The arc-shaped plates 53 are in contact to prevent foam from overflowing. When the scraper 8 passes the guide plate 6, the bottom plate 82 is affected by the elliptical protrusion 61 on the guide plate 6. Under the action of the torsion spring 81, the scraper 8 vibrates and the foam falls onto the guide plate 6. The elliptical protrusion 61 does not block the foam from flowing into the collection box 7, but instead guides the foam to flow downward. At this time, the scraper 8 completes the scraping action again with the rotation of the drive shaft 15 until the set degree is scraped and the drive motor 9 stops.

[0067] The foregoing has described the embodiments of the present invention. However, those skilled in the art can make various changes, modifications and substitutions to the embodiments based on an understanding of the principles of the present invention. The scope of the present invention is defined by the claims and related content.

Claims

1. An experimental mechanically stirred flotation machine, comprising a base (1), a support column (2), a stirrer (3), an inlet pipe (4), a water tank (5), a guide plate (6), a collection box (7), a scraper (8), and a drive motor (9), characterized in that: It also includes a gathering component (10), a flow guiding component (11), and a return component (12). The area from the flow guiding plate (6) to the support column (2) of the water tank (5) is divided into a front end (52), a middle end (51), and a rear end (50). The rear end (50) is equipped with a flow guiding component (11) to push the foam accumulated at the rear end (50) toward the middle end (51). The middle end (51) is equipped with a gathering component (10) to push the foam pushed to the middle end (51) toward the front end (52). The middle end (51) is symmetrically equipped with a return component (12) along the center line of the water tank (5) to guide the water flow at the front end (52) to flow along both sides of the water tank (5) toward the rear end (50). The front end (52) is equipped with a scraper (8) to scrape the foam. The scraper (8), the gathering component (10), and the flow guiding component (11) are driven by a drive motor (9).

2. The experimental mechanical stirring flotation machine according to claim 1, characterized in that: The scraper (8) includes a top plate (80), a torsion spring (81), and a bottom plate (82). The support column (2) has an installation groove (21). The drive motor (9) is installed in the installation groove (21). Two support frames (20) are symmetrically fixedly installed on the support column (2) along its centerline. A drive shaft (15) is rotatably mounted on each support frame (20), with one end of the drive shaft (15) extending to the outside of the support frame (20). Both the drive shaft (15) and the drive motor (9) are fixedly equipped with pulleys (13), and the two pulleys (13) have a total of... A belt (14) is wound around the drive shaft (15). A drive rod (16) is fixedly installed at the free end of the drive shaft (15). A rotating shaft (17) is rotatably installed on the drive rod (16). A top plate (80) is fixedly installed on the rotating shaft (17). A bottom plate (82) is connected to the free end of the top plate (80). The top plate (80) and the bottom plate (82) are connected by a torsion spring (81). When not scraping, the maximum opening angle between the top plate (80) and the bottom plate (82) is 150°. When in contact with the guide plate (6), the opening angle between the top plate (80) and the bottom plate (82) is 100°.

3. The experimental mechanical stirring flotation machine according to claim 2, characterized in that: The guide plate (6) includes an inclined plate (60) and a protrusion (61). The front end (52) of the water tank (5) is provided with an overflow groove (54), and an inclined plate (60) is installed on the overflow groove (54). Multiple protrusions (61) that cooperate with the bottom plate (82) are installed on the inclined plate (60). The protrusions (61) are elliptical.

4. The experimental mechanical stirring flotation machine according to claim 2, characterized in that: The gathering component (10) includes a driven shaft (100), a rocker arm (101), a fixed shaft (102), a mounting rod (103), and shaped blades (104). The driven shaft (100) is rotatably mounted on the support frame (20). The rocker arm (101) is fixedly mounted on the free end of the driven shaft (100). The fixed shaft (102) is rotatably mounted on the free end of the rocker arm (101). The mounting rod (103) is mounted on the fixed shaft (102) and cooperates with the rotating shaft (17). Multiple shaped blades (104) are mounted on the end face of the mounting rod (103) facing the stirrer (3). All shaped blades (104) point towards the guide plate (6). The shaped blades (104) complete elliptical trajectory motion under the driving force of the rotating shaft (17).

5. An experimental mechanically stirred flotation machine according to claim 4, characterized in that: The mounting rod (103) has multiple floating grooves (1030) on its end face near the stirrer (3). A slide rail (1031) is installed in the floating groove (1030). A slider (1032) that cooperates with the row blade (104) is slidably connected on the slide rail (1031). The center of gravity of the row blade (104) is located at the bottom.

6. The experimental mechanically stirred flotation machine according to claim 4, characterized in that: The flow guiding assembly (11) includes a follower shaft (110) and arc-shaped blades (111). The follower shaft (110) is rotatably mounted on the support frame (20). Four arc-shaped blades (111) are fixedly mounted on both ends of the follower shaft (110). The end of the arc-shaped blades (111) facing the stirrer (3) is an inclined arc. The driven shaft (100) and the follower shaft (110) are both fixedly mounted with pulleys (18) at the ends near the support frame (20). A belt (19) is wound around the two pulleys (18).

7. An experimental mechanically stirred flotation machine according to claim 6, characterized in that: The arc-shaped blade (111) has a pointed end away from the follower shaft (110) and gradually thickens towards the follower shaft (110). The end of the arc-shaped blade (111) near the stirrer (3) has a small diameter, and the end away from the stirrer (3) has a large diameter. The angle between the intersection of the arc-shaped blade (111) entering and leaving the liquid surface and the axis is α. The included angle between the two arc-shaped blades (111) is β.

8. An experimental mechanically stirred flotation machine according to claim 6, characterized in that: The reflux assembly (12) includes a partition (120). Two partitions (120) are symmetrically installed in the water tank (5) along the center line of the stirrer (3). The partition (120) has a water outlet (1200) at the bottom end near the guide plate (6). The partition (120) and the guide plate (6) are at the same height. The bottom surface of the water tank (5) is an inclined surface (121). The partition (120) is installed on the inclined surface (121). The height of the inclined surface (121) decreases sequentially from the guide plate (6) to the support column (2).

9. An experimental mechanically stirred flotation machine according to claim 8, characterized in that: The top plate (80) has an arc surface (801) at one end near the guide plate (6). An arc plate (53) is fixedly installed on the inner wall of the front end (52) of the water tank (5), and the arc of the arc surface (801) is the same as the arc of the arc plate (53). The water outlet (1200) is opened at the connection between the partition plate (120) and the arc plate (53), and one end of the water outlet (1200) is arc-shaped.

10. An experimental mechanically stirred flotation machine according to claim 9, characterized in that: The top plate (80) has multiple drainage holes (800) at its bottom end. When the top plate (80) contacts the arc plate (53), the drainage holes (800) are all vertically facing the bottom of the water tank (5).

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