A flotation machine

Abstract

The application discloses a kind of floatation machines, specifically relates to floatation machine technical field, including floatation bin, floatation mechanism, still includes adjusting assembly and detection assembly.The setting of detection assembly and adjusting assembly of the present application makes that floatation mechanism can dynamically adjust bubble generation size according to ore pulp concentration, can adapt to the differentiated needs of different ore pulp viscosity to bubble detachment, automatically realize slag particle size full coverage, on the one hand, can reduce the number of small bubbles when the concentration of ore pulp is high, increase the number of large bubbles, thereby improve slag particle adhesion rate, reduce the invalid lifting of small bubbles when the concentration of ore pulp is high, on the other hand, can increase the number of small bubbles, reduce the number of large bubbles when the concentration of ore pulp is low, avoid causing inflation waste, reduce inflation energy consumption and avoid impurities excessive adsorption, significantly improve concentrate purity, simultaneously replace manual intervention by full mechanical electrical closed loop control, simplify operation process and can adapt to ore pulp fluctuation scene.

Description

Technical Field

[0001] This invention relates to the field of flotation machine technology, and more specifically, to a flotation machine. Background Technology

[0002] A flotation machine, short for flotation mineral processing machine, refers to mechanical equipment that performs the flotation process. In a flotation machine, the slurry, after being treated with reagents, is agitated and aerated, causing some mineral particles to selectively adhere to the air bubbles; those that float to the surface are scraped off to form a froth product, while the rest remain in the slurry, thus achieving the purpose of mineral separation. There are many structural forms of flotation machines, the most common being the mechanically agitated flotation machine.

[0003] Chinese patent application number CN202410474059.8 discloses a flotation machine, which includes a flotation chamber, a flotation mechanism inside the flotation chamber, a drive mechanism at the top of the flotation chamber and on the side of the flotation mechanism, a scraping mechanism on the flotation chamber, a gate mechanism at the side of the flotation chamber, a feeding mechanism on the flotation mechanism away from the gate mechanism, and a crossbeam at the top of the flotation chamber. The flotation mechanism includes a flotation tube with a ring sleeve on its inner wall. By setting components such as an annular electromagnet, a metal disk, a turntable, and a pressure sensor, when the annular electromagnet is intermittently energized, the driven shaft will reciprocate up and down. When the driven shaft reciprocates up and down, the metal disk and the ring sleeve will vibrate, causing the air bubbles adhering to the outer wall of the flotation tube to detach. The rise and fall of the turntable will cooperate with the disc to form air bubbles of different sizes to enhance the flotation effect of the slurry.

[0004] While the aforementioned invention can enhance the flotation effect of slurry by intermittently changing the bubble size, it cannot specifically adjust the bubbles according to the slurry concentration. This makes it difficult to adapt to the differentiated requirements of bubble detachment for different slurry viscosities. When the slurry concentration is high, the viscosity is large, the resistance to bubble rise increases, and the surface area and buoyancy of small bubbles are insufficient, resulting in a reduced adhesion rate of slag particles. This is especially true for denser mineral particles, which prolongs the flotation time and reduces the throughput per unit time, affecting flotation efficiency. When the slurry concentration is low, the generation of large bubbles requires more compressed air input, increasing energy consumption and leading to a decrease in the utilization rate of the flotation chamber aeration, thus increasing operating costs.

[0005] This invention provides a flotation machine that aims to solve the problems of existing flotation machines being unable to adjust the bubbles according to the pulp concentration, making it difficult to adapt to the different requirements of different pulp viscosities for bubble detachment, thus affecting flotation efficiency and causing a decrease in aeration utilization. Summary of the Invention

[0006] The purpose of this invention is to provide a flotation machine that solves the problems mentioned in the background art of existing flotation machines that cannot adjust the bubbles according to the pulp concentration, making it difficult to adapt to the different requirements of different pulp viscosities for bubble detachment, thus affecting flotation efficiency and causing a decrease in aeration utilization.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a flotation machine, comprising a flotation chamber, a flotation mechanism, a drive mechanism, and a scraping mechanism, wherein the flotation mechanism comprises a flotation tube, a drive shaft, a driven shaft, a turntable, a first adjusting member, and a metal disc, and an adjustable gap is formed between the turntable and the disc;

[0008] The flotation tube is equipped with an adjustment component and a detection component. The detection component is used to generate a corresponding resistance signal based on the change in pulp concentration. The adjustment component is used to dynamically adjust the gap between the turntable and the disc based on the resistance signal of the detection component to change the bubble size.

[0009] Preferably, the detection component includes a rotating sleeve, a resistance strip, a first conductive ring, a first conductive element, a second conductive ring, and a second conductive element. The rotating sleeve is rotatably connected to the driven shaft. The first conductive ring is fixed on the rotating sleeve and contacts the resistance strip through the first conductive element. The resistance strip is fixed to the top of the driven shaft and contacts the second conductive ring through the second conductive element. The second conductive ring is electrically connected to the adjustment component.

[0010] Preferably, a third elastic element is provided between the rotating sleeve and the driven shaft. When the rotating sleeve is subjected to the resistance of the slurry, the third elastic element is compressed, causing the first conductive ring to slide on the resistor bar to change the circuit resistance value.

[0011] Preferably, the adjustment assembly includes a control cavity, a second adjustment member, and a third adjustment member, wherein the third adjustment member is fixedly connected to the first adjustment member via a support block.

[0012] Preferably, the inner wall of the flotation tube is provided with a support plate, and a second elastic member is provided between the first adjusting member and the support plate to provide a reset elastic force.

[0013] Preferably, the drive shaft engages with the limiting groove of the rotating sleeve via a limiting rod, thereby causing the drive shaft to drive the rotating sleeve to rotate.

[0014] Preferably, a conductive rod for transmitting current is slidably connected inside the flotation tube, and the conductive rod is kept in contact with the first conductive ring through a fourth elastic element.

[0015] Preferably, the flotation mechanism is fixed to the top of the flotation chamber by a crossbeam, and the drive mechanism is fixed to the top of the flotation chamber by a support frame.

[0016] Preferably, the bottom of the disc is provided with a first bubble-breaking plate, and the turntable is provided with a second bubble-breaking plate, the first bubble-breaking plate and the second bubble-breaking plate cooperate to break the bubbles.

[0017] Preferably, the flotation tube is provided with an air filling tube at one end for supplying gas into the flotation tube.

[0018] The technical effects and advantages of this invention are as follows:

[0019] This invention, through the setting of detection and adjustment components, enables the flotation mechanism to dynamically adjust the bubble generation size according to the pulp concentration, adapting to the differentiated requirements of bubble detachment for different pulp viscosities, and automatically achieving full coverage of slag particle size. On the one hand, it can reduce the number of small bubbles and increase the number of large bubbles when the pulp concentration is high, thereby improving the adhesion rate of slag particles and reducing the ineffective lifting of small bubbles when the pulp concentration is high. On the other hand, it can increase the number of small bubbles and reduce the number of large bubbles when the pulp concentration is low, avoiding aeration waste, reducing aeration energy consumption and avoiding excessive adsorption of impurities, significantly improving concentrate purity. At the same time, the fully mechanical and electrical closed-loop control replaces manual intervention, simplifying the operation process and adapting to pulp fluctuation scenarios. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the flotation mechanism of the present invention.

[0022] Figure 3 This is a cross-sectional view of the internal structure of the flotation tube of the present invention.

[0023] Figure 4 For the present invention Figure 3 Enlarged view of the structure of part A.

[0024] Figure 5 This is an exploded view of the regulating component portion of the present invention.

[0025] Figure 6 This is a schematic diagram of the third adjusting component of the present invention.

[0026] Figure 7 This is a schematic diagram of the metal disk structure of the present invention.

[0027] The attached figures are labeled as follows: 1. Flotation chamber; 2. Flotation mechanism; 201. Flotation tube; 202. Drive shaft; 203. Driven shaft; 204. Air inlet pipe; 205. First driven wheel; 206. Mounting frame; 207. Disc; 208. Air outlet; 209. First bubble-breaking plate; 210. Turntable; 211. Second bubble-breaking plate; 212. First adjusting component; 213. Metal disc; 214. First elastic component; 3. Drive mechanism; 4. Scraping mechanism; 5. Adjusting assembly; 51. Control chamber; 52. Guide groove; 53. Second adjusting component; 54. Third adjusting component; 55. Support block; 56. Support plate; 57. Second elastic component; 6. Detection assembly; 61. Rotating sleeve; 62. Adjusting groove; 63. Third elastic component; 64. First conductive ring; 65. Resistance bar; 66. First conductive component; 67. Second conductive ring; 68. Second conductive component; 69. Support rod; 610. Conductive rod; 611. Fourth elastic component; 612. Limiting groove; 613. Limiting rod; 7. Feeding mechanism. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] refer to Figures 1 to 7 An embodiment of the present invention provides a flotation machine comprising a flotation chamber 1, a flotation mechanism 2, a drive mechanism 3, a scraping mechanism 4, and a feeding mechanism 7.

[0031] refer to Figures 1 to 3 Flotation mechanism 2 is fixed to the top of the flotation machine by a crossbar and includes flotation tube 201. A drive shaft 202 is provided inside the flotation tube 201. A driven shaft 203 is slidably connected to the lower end of the drive shaft 202. When the drive shaft 202 rotates, it drives the driven shaft 203 to rotate. An air filling pipe 204 is provided on the side end of the flotation tube 201.

[0032] refer to Figures 1 to 4The flotation mechanism 2 also includes a first driven wheel 205, which is rotatably connected to the flotation tube 201. The first driven wheel 205 is located at the upper end of the drive shaft 202. The top end of the flotation tube 201 is sealed. The drive shaft 202 rotates through the flotation tube 201. A mounting bracket 206 is provided on the outside of the flotation tube 201. A disc 207 is provided at the lower end of the flotation tube 201. An air outlet 208 is provided on the disc 207. A first bubble-breaking plate 209 is provided at the lower end of the disc 207. A turntable 210 is provided at the lower end of the driven shaft 203. A second bubble-breaking plate 211 is provided on the turntable 210. After the first driven wheel 205 rotates, it drives the drive shaft 202 to rotate. The rotation of the drive shaft 202 drives the rotation of the driven shaft 203. The rotation of the driven shaft 203 drives the rotation of the turntable 210, which in turn causes the second bubble-breaking plate 211 to rotate.

[0033] refer to Figure 3 and Figure 4 The flotation tube 201 is provided with a first adjusting member 212. Preferably, the first adjusting member 212 is an annular electromagnet. A metal disk 213 is provided at the upper end of the driven shaft 203. A first elastic member 214 is provided between the metal disk 213 and the drive shaft 202. When the first adjusting member 212 is energized, the first adjusting member 212 will generate a magnetic force. Under the influence of the magnetic force, the metal disk 213 will move towards the first adjusting member 212, thereby causing the driven shaft 203 to move upward.

[0034] refer to Figure 1 The drive mechanism 3 is fixed to the top of the flotation chamber 1 by a support frame and is used to drive the first driven wheel 205 to rotate. The drive mechanism 3 is existing technology and will not be described in detail here.

[0035] The scraping mechanism 4 is located at the side of the flotation chamber 1. It is used to scrape the foam on the surface of the slurry into the feed trough by rotating the scraper. The scraping mechanism 4 is existing technology and will not be described in detail here.

[0036] The feeding mechanism 7 is used to add slurry into the flotation chamber 1. The feeding mechanism 7 is existing technology and will not be described in detail here.

[0037] In actual operation, the slurry is first fed into the feeding mechanism 7 by an external feeder, and then enters the flotation chamber 1. Then, the drive mechanism 3 is activated, which drives the first driven wheel 205 to rotate. The rotation of the first driven wheel 205 drives the drive shaft 202 to rotate, which in turn drives the driven shaft 203 to rotate, thereby causing the turntable 210 to rotate. Simultaneously, air is injected into the air filling pipe 204 through an external air filling device. The air in the air filling pipe 204 enters the flotation tube 201. Because the upper end of the flotation tube 201 is sealed, the air inside the flotation tube 201 is discharged from the bottom of the flotation tube 201. When the material is discharged from the bottom, the rotation of the turntable 210 will drive the rotation of the second bubble-breaking plate 211. The rotation of the second bubble-breaking plate 211, in conjunction with the first bubble-breaking plate 209, will disperse the air discharged from the bottom of the flotation tube 201, reducing the volume of the bubbles entering the slurry. This will allow the bubbles to better encapsulate the slag. Some of the gas will be discharged through the air outlet 208. The bubbles discharged through the air outlet 208 will also encapsulate the slag. The bubbles encapsulating the slag will float upward under the action of buoyancy and form foam on the surface of the slurry. Then, the scraping mechanism 4 will be activated to rotate the scraper and scrape the foam on the surface of the slurry into the feed trough, thus completing the flotation of the slag in the slurry.

[0038] When the flotation mechanism 2 is in operation, the first adjusting member 212 can be intermittently energized. When energized, the first adjusting member 212 generates a magnetic force, which drives the metal disk 213 to move toward the first adjusting member 212, thereby causing the driven shaft 203 and the second bubble-breaking plate 211 to move upward, reducing the distance between the turntable 210 and the disc 207. During the rotation of the turntable 210, the volume of the bubbles discharged from the gap between the turntable 210 and the disc 207 will be smaller.

[0039] After the first adjusting element 212 is de-energized, the magnetic force disappears. Under the thrust of the first elastic element 214, the driven shaft 203 moves downward, making the gap between the turntable 210 and the disc 207 larger. The volume of the discharged bubbles also increases, so that the flotation mechanism 2 can continuously generate bubbles of different sizes, thereby carrying out comprehensive flotation of slag of different volumes.

[0040] Example 2

[0041] In actual use, although the flotation mechanism 2 can change the bubble size by intermittently adjusting the gap between the turntable 210 and the disc 207, it cannot make targeted adjustments to the bubbles according to the pulp concentration. It is difficult to adapt to the differentiated requirements of bubble detachment for different pulp viscosities. When the pulp concentration is high, the viscosity is large, the resistance to bubble rise increases, and the surface area and buoyancy of small bubbles are insufficient, resulting in a decrease in the adhesion rate of slag particles. This is especially true for mineral particles with higher density, which prolongs the flotation time and reduces the throughput per unit time, affecting the flotation efficiency. When the pulp concentration is low, the generation of large bubbles requires more compressed air input, increasing energy consumption and causing a decrease in the aeration utilization rate of the flotation chamber 1, thus increasing operating costs. Therefore, this embodiment improves the device described in the above embodiment.

[0042] refer to Figures 2 to 7 It also includes an adjustment component 5 and a detection component 6, both of which are disposed inside the flotation tube 201. The adjustment component 5 includes a control cavity 51, which is fixedly connected to the outer wall of the flotation tube 201. The inner wall of the flotation tube 201 has multiple guide grooves 52 communicating with the control cavity 51. A second adjustment element 53 is disposed at the bottom of the control cavity 51. Preferably, the second adjustment element 53 is an annular electromagnet. A third adjustment element 54 is slidably connected above the second adjustment element 53 inside the control cavity 51. Specifically, The third adjustment component uses a ring magnet; when the second adjustment component 53 is energized, it will generate a magnetic force that repels the third adjustment component 54. The inner side of the third adjustment component 54 is fixedly connected to the first adjustment component 212 through multiple support blocks 55. The number of support blocks 55 is the same as the number of guide grooves 52. The multiple support blocks 55 are slidably connected in the corresponding guide grooves 52. The inner wall of the flotation tube 201 is fixedly connected to a ring-shaped support plate 56 above the first adjustment component 212. A second elastic element 57 is connected between the first adjustment component 212 and the support plate 56.

[0043] refer to Figures 3 to 5 The detection component 6 includes a rotating sleeve 61, a metal disk 213 fixedly connected to the top of the rotating sleeve 61, and the metal disk 213 and the rotating sleeve 61 are fixed together by a support member. The support member has a slot for gas flow. The top of the driven shaft 203 has an adjustment groove 62. The rotating sleeve 61 is rotatably connected in the adjustment groove 62, and when the rotating sleeve 61 moves up and down, it can drive the driven shaft 203 to move up and down synchronously. A third elastic member 63 is sleeved inside the adjustment groove 62. One end of the third elastic member 63 is fixedly connected to the adjustment groove 62, and the other end is connected to the rotating sleeve 61. The third elastic member 63 can be a coil spring, which is used to drive the driven shaft 203 to rotate when the rotating sleeve 61 rotates.

[0044] A first conductive ring 64 is fixedly connected to the outer wall of the rotating sleeve 61 above the driven shaft 203. A resistance strip 65 is fixedly embedded at the top of the driven shaft 203. A first conductive element 66 that can abut against the resistance strip 65 is fixedly connected to the bottom of the first conductive ring 64. A second conductive ring 67 is fixedly connected to the inner wall of the float tube 201. A second conductive element 68 that can abut against the second conductive ring 67 is fixedly connected to the side wall of the resistance strip 65. The second conductive ring 67 is located on the moving path of the second conductive element 68. The second conductive element 68 is electrically connected to the second adjusting element 53. When the rotating sleeve 61 compresses the third elastic element 63 and drives the driven shaft 203 to rotate, the first conductive element 66 can slide on the resistance strip 65, which can increase the distance between the first conductive element 66 and the second conductive element 68, thereby increasing the resistance value in the circuit.

[0045] refer to Figure 4 and Figure 5 A support rod 69 is fixedly connected to the outer wall of the rotating sleeve 61 above the first conductive ring 64. A conductive rod 610 that can slide on the support rod 69 and abut against the first conductive ring 64 is provided. The conductive rod 610 is electrically connected to an external power source. A fourth elastic element 611 is sleeved on the outer periphery of the conductive rod 610. One end of the fourth elastic element 611 is connected to the support rod 69 and the other end is connected to the conductive rod 610. It is used to provide a thrust for the contact between the conductive rod 610 and the first conductive ring 64. The first conductive element 66 and the second conductive element 68 can be configured as a telescopic mechanism, and the contact force between the first conductive ring 64 and the second conductive ring 67 is provided through the elastic element.

[0046] refer to Figure 4 The top of the rotating sleeve 61 has a limiting groove 612, and the bottom of the drive shaft 202 is fixedly connected to a limiting rod 613 that is slidably connected inside the limiting groove 612.

[0047] In actual operation, when the drive shaft 202 rotates, it can drive the rotating sleeve 61 to rotate through the limiting action of the limiting rod 613 and the limiting groove 612. The rotation of the rotating sleeve 61 drives the driven shaft 203 to rotate through the third elastic element 63, thereby causing the turntable 210 to rotate.

[0048] During the rotation of the rotating sleeve 61, the first conductive ring 64 will rotate synchronously. During the rotation of the first conductive ring 64, the conductive rod 610 can contact the first conductive ring 64 under the thrust of the fourth elastic element 611. The current is transmitted to the first conductive ring 64 through the conductive rod 610. The working principle of the conductive slip ring can be referred to. Since the rotating sleeve 61 can drive the driven shaft 203 to rotate through the third elastic element 63 when rotating, the rotating sleeve 61 and the driven shaft 203 are in a relatively stationary state during the rotation when the slurry concentration does not change. Therefore, the current transmitted to the first conductive ring 64 can be transmitted to the resistor bar 65 through the first conductive element 66. The current transmitted to the resistor bar 65 is then transmitted to the second conductive ring 67 through the second conductive element 68, and finally to the second adjusting element 53, so that the second adjusting element 53 generates a magnetic force that repels the third adjusting element 54, thereby providing support for the third adjusting element 54 and the first adjusting element 212.

[0049] When the slurry concentration inside flotation chamber 1 increases, the stirring resistance of the second frothing plate 211 increases, allowing the rotating sleeve 61 to further compress the third elastic element 63 as it rotates within the regulating tank 62. During this rotation, the rotating sleeve 61 drives the first conductive element 66 to move on the resistance bar 65 via the first conductive ring 64, increasing the distance between the first conductive element 66 and the second conductive element 68. This increases the resistance in the circuit, reducing the current entering the second regulating element 53 and consequently decreasing the magnetic force of the second regulating element 53. After the magnetic force of the second adjusting member 53 decreases, the second elastic member 57 will push the first adjusting member 212 and drive the third adjusting member 54 to move downward through multiple support blocks 55, thereby reducing the distance between the first adjusting member 212 and the metal disk 213. At this time, the first adjusting member 212 is intermittently energized, which can reduce the movement range of the turntable 210 at the bottom of the flotation chamber 1, thereby reducing the number of small bubbles and increasing the number of large bubbles, thereby improving the adhesion rate of slag particles, reducing the ineffective lifting of small bubbles when the slurry concentration is high, and thus improving the flotation efficiency.

[0050] When the concentration of the slurry in flotation chamber 1 decreases after flotation, the stirring resistance of the second frothing plate 211 decreases, and the third elastic element 63 pushes the rotating sleeve 61 back to rotate in the regulating tank 62. During the rotation of the rotating sleeve 61 in the regulating tank 62, it drives the first conductive element 66 to move on the resistance bar 65 through the first conductive ring 64, reducing the distance between the first conductive element 66 and the second conductive element 68, thus reducing the resistance in the circuit. After the resistance in the circuit decreases, the current entering the second regulating element 53 increases, thus increasing the magnetic force of the second regulating element 53. After the magnetic force of the second regulating element 53 increases, it will push the third regulating element 53 back to rotate. When component 54 moves upward, the upward movement of the third adjusting component 54 will drive the first adjusting component 212 to move upward through multiple support blocks 55 and compress the second elastic component 57, thereby increasing the distance between the first adjusting component 212 and the metal disk 213. At this time, the first adjusting component 212 is intermittently energized, which can increase the range of movement of the turntable 210 at the bottom of the flotation chamber 1, thereby increasing the number of small bubbles generated and reducing the number of large bubbles generated. This allows the flotation mechanism 2 to adjust the bubble size in real time according to the pulp concentration, automatically achieve full coverage of slag particle size, avoid waste of aeration, and further improve flotation efficiency.

[0051] It should be noted that by adjusting the power supply mode to enable continuous power supply, the turntable 210 can remain at any position according to the change in slurry concentration, continuously generating bubbles of the corresponding size, allowing for targeted adjustments and improving the applicability of the device.

[0052] In summary, by setting up the detection component 6 and the adjustment component 5, the flotation mechanism 2 can dynamically adjust the bubble generation size according to the pulp concentration, adapting to the differentiated requirements of bubble detachment for different pulp viscosities, and automatically achieving full coverage of slag particle size. On the one hand, it can reduce the number of small bubbles and increase the number of large bubbles when the pulp concentration is high, thereby improving the adhesion rate of slag particles and reducing the ineffective lifting of small bubbles when the pulp concentration is high. On the other hand, it can increase the number of small bubbles and reduce the number of large bubbles when the pulp concentration is low, avoiding aeration waste, reducing aeration energy consumption and avoiding excessive adsorption of impurities, significantly improving concentrate purity. At the same time, the fully mechanical and electrical closed-loop control replaces manual intervention, simplifying the operation process and adapting to pulp fluctuation scenarios.

[0053] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flotation machine, comprising a flotation chamber (1), a flotation mechanism (2), a drive mechanism (3), and a scraping mechanism (4), characterized in that: The flotation mechanism (2) includes a flotation tube (201), a drive shaft (202), a driven shaft (203), a turntable (210), a first annular electromagnet (212), and a metal disk (213), wherein an adjustable gap is formed between the turntable (210) and the disk (207); The flotation tube (201) is provided with an adjustment component (5) and a detection component (6). The detection component (6) is used to generate a corresponding resistance signal according to the change of slurry concentration. The adjustment component (5) is used to dynamically adjust the gap between the turntable (210) and the disc (207) according to the resistance signal of the detection component (6) to change the bubble size. The detection component (6) includes a rotating sleeve (61), a resistance bar (65), a first conductive ring (64), a first conductive element (66), a second conductive ring (67), and a second conductive element (68). The rotating sleeve (61) is rotatably connected to the driven shaft (203). The first conductive ring (64) is fixed on the rotating sleeve (61) and contacts the resistance bar (65) through the first conductive element (66). The resistance bar (65) is fixed at the top of the driven shaft (203) and contacts the second conductive ring (67) through the second conductive element (68). The second conductive ring (67) is electrically connected to the adjustment component (5). A third elastic element (63) is provided between the rotating sleeve (61) and the driven shaft (203). When the rotating sleeve (61) is subjected to the resistance of the slurry, it compresses the third elastic element (63) so that the first conductive ring (64) slides on the resistor bar (65) to change the circuit resistance value. The adjustment assembly (5) includes a control cavity (51), a second annular electromagnet (53) and an annular magnet (54). The annular magnet (54) is fixedly connected to the first annular electromagnet (212) through a support block (55). When the second annular electromagnet (53) is energized, it generates a magnetic force that repels the annular magnet (54) to drive the annular magnet (54) to move, thereby adjusting the distance between the first annular electromagnet (212) and the metal disk (213). The inner wall of the flotation tube (201) is provided with a support plate (56), and a second elastic element (57) is provided between the first annular electromagnet (212) and the support plate (56) to provide a reset elastic force; The drive shaft (202) engages with the limiting groove (612) of the rotating sleeve (61) via the limiting rod (613), so that the drive shaft (202) drives the rotating sleeve (61) to rotate. A conductive rod (610) for transmitting current is slidably connected inside the flotation tube (201). The conductive rod (610) is kept in contact with the first conductive ring (64) through a fourth elastic element (611) to ensure stable current transmission. The bottom of the disc (207) is provided with a first bubble-breaking plate (209), and the turntable (210) is provided with a second bubble-breaking plate (211). The first bubble-breaking plate (209) and the second bubble-breaking plate (211) work together to break up bubbles.

2. The flotation machine according to claim 1, characterized in that: The flotation mechanism (2) is fixed to the top of the flotation chamber (1) by a crossbeam, and the drive mechanism (3) is fixed to the top of the flotation chamber (1) by a support frame.

3. The flotation machine according to claim 2, characterized in that: The flotation tube (201) is provided with an air supply tube (204) at one end for supplying gas into the flotation tube (201).

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