Flotation device for producing fluorite fine powder

Abstract

A flotation device for producing fluorite fine powder relates to a flotation device and comprises a flotation tank (10), a cavity (34) is arranged in the flotation tank (10), a stirring mechanism is arranged in the cavity (34), a stirring driving mechanism is arranged at the top of the flotation tank (10), a foam outlet nozzle (6) with a top opening is arranged on one side of the flotation tank (10), and a foam scraping mechanism (5) is arranged at the top of the foam outlet nozzle (6). The controller is used for controlling the forward and reverse rotation motor A and the forward and reverse rotation motor B to rotate forwards and reversely according to needs; the purpose that the lower end of the scraping plate moves to the opening portion of the foam outlet nozzle along a straight line from the junction of the floating foam located on one side of the flotation tank and the ore pulp liquid, and the planar floating foam which floats on the top of the ore pulp liquid and is located between the scraping plate and the opening portion of the foam outlet nozzle is completely scraped out is achieved.

Description

Technical Field

[0001] The invention relates to a flotation device, in particular to a flotation device for producing fluorite concentrate. Background Art

[0002] Fluorite, also known as fluorspar, is the main source of fluorine in industry and one of the world's 20 important non-metallic mineral raw materials; pure, colorless and transparent fluorite can be used as optical materials, and colorful fluorite can also be used as gemstones and raw materials for arts and crafts carving; fluorite is also the basic raw material of the fluorine chemical industry, and its products are widely used in aerospace, aviation, refrigeration, medicine, pesticides, anti-corrosion, fire extinguishing, electronics, electricity, machinery and atomic energy. With the continuous development of science and technology and the national economy, fluorite has become an important mineral raw material in modern industry, and many developed countries reserve it as an important strategic material. When the flotation device is used for flotation, the pulp treated with the reagent is stirred and aerated, so that some of the mineral particles are selectively fixed on the bubbles, float to the surface of the pulp and are scraped out to form a foam product, and the rest are retained in the pulp to achieve the purpose of separating minerals. When the fluorite powder is flotated, the scraper is used to scrape out the foam generated by the pulp and the flotation agent, which is collected and processed in the next step to obtain fluorite concentrate.

[0003] For example, a low-silicon fluorite powder flotation device disclosed in the utility model patent application with application publication number CN222000285U includes a flotation cell; a flotation mechanism is arranged at the upper end of the flotation cell; the flotation mechanism includes an electric push rod, a mounting frame, a bearing seat, a rotating rod, and a scraper, and the movable end of the electric push rod is fixedly provided with a mounting frame; a bearing seat is fixedly provided at the upper end of the mounting frame, and a rotating rod is movably provided between the bearing seats through a bearing; a scraper is fixedly provided on the outer surface of the rotating rod, and a transmission mechanism for driving the rotating rod to rotate is arranged on one side of the surface of the flotation cell, and the transmission mechanism includes a first motor, a reducer, a first driving pulley, a first driven pulley, and a first transmission belt, and the first motor is fixedly provided on one side of the surface of the flotation cell. The disclosed scraper is in tangential contact with the bubbles on the top of the liquid surface when rotating and scraping, and the contact area is small (only a line), so the scraped bubbles are limited. If the scraper is extended below the liquid surface to scrape out the bubbles, although more foam can be scraped out, a lot of flotation liquid will be mixed at the same time, resulting in insufficient foam purity and low flotation accuracy. Summary of the invention

[0004] In order to overcome the shortcomings in the background technology, the present invention discloses a flotation device for producing fluorite concentrate. By using a controller to control the forward and reverse motors A and B to rotate forward and reverse as needed, the lower end of the scraper runs in a straight line from the junction of the froth and slurry liquid on one side of the flotation tank to the froth outlet mouth to scrape out all the planar froth floating on the top of the slurry liquid between the scraper and the froth outlet mouth.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme: A flotation device for producing fluorite concentrate comprises a flotation tank, a cavity is provided in the flotation tank, a stirring mechanism is provided in the cavity, a stirring driving mechanism is provided on the top of the flotation tank, a frothing nozzle with an open top is provided on one side of the flotation tank, a frothing scraping mechanism is provided on the top of the frothing nozzle, a slurry inlet pipe penetrating the inside of the stirring mechanism is provided on the side wall at one end of the flotation tank, a slurry outlet pipe penetrating the cavity is provided on the side wall at the other end of the flotation tank, the frothing scraping mechanism comprises a shaft, sleeve rings are rotatably sleeved at both ends of the shaft, the two sleeve rings are fixedly connected to the two ends of the frothing nozzle, the middle and upper parts of the outer walls of the two sliding sleeves are fixedly connected to one side of the shaft near the two ends, sliding rods are slidably connected in the two sliding sleeves, the upper ends of the two sliding rods extend out of the two sliding sleeves, and a connecting rod is provided between the upper ends of the two sliding rods. The lower ends of the two slide bars extend out of two sliding sleeves and a scraper is provided between the lower ends of the two slide bars. The upper end of the rack located in the middle of one side of the shaft and parallel to the two slide bars is fixedly connected to the middle of the connecting rod, and the lower end of the rack is fixedly connected to the middle of the scraper. A forward and reverse motor B is fixedly connected to a position near the middle of one side of the shaft, a gear is sleeved on the rotating shaft B provided with the forward and reverse motor B, and the gear and the rack are meshed. A driven pulley B is sleeved between the sliding sleeve and the collar at one end of the shaft, a forward and reverse motor A is fixedly connected to the foam outlet nozzle located at one end of the shaft, a driving pulley B is sleeved on the rotating shaft C provided with the forward and reverse motor A, a transmission belt B is sleeved on the outside of the driving pulley B and the driven pulley B, and the forward and reverse motor B and the forward and reverse motor A are electrically connected to the controller respectively.

[0006] The flotation device for producing fluorite concentrate is provided with a reducer A between the rotating shaft B and the forward and reverse motor B.

[0007] The flotation device for producing fluorite concentrate is provided with a reducer B between the rotating shaft C and the forward and reverse motor A.

[0008] The flotation device for producing fluorite concentrate is provided with a froth collecting tank below the mouth of the froth outlet.

[0009] The flotation device for producing fluorite concentrate is provided with support rods between the two rings and the two ends of the frothing nozzle, and a motor support rod is provided between the support rod at one end of the shaft rod and the forward and reverse motor A.

[0010] The flotation device for producing fluorite concentrate is characterized in that the stirring mechanism comprises a sleeve, a barrel cavity is arranged in the sleeve, a sealing cover is arranged at the upper end of the sleeve, a through hole is arranged at the center of the sealing cover, the upper end of the sleeve is fixedly connected to the inner top of the cavity, the slurry inlet pipe and the barrel cavity are connected, an annular plate is sleeved on the lower end of the sleeve, a guide cover extending downward close to the bottom of the barrel cavity is arranged on the outer edge of the annular plate, a stirring shaft is arranged in the center of the barrel cavity, the upper end of the stirring shaft extends out of the through hole arranged at the top of the flotation tank and is rotatably connected to the through hole, the lower end of the stirring shaft extends into the guide cover, and a stirring paddle is arranged on the stirring shaft located in the guide cover.

[0011] The flotation device for producing fluorite concentrate is provided with an air inlet pipe extending upward in the middle of the sleeve and having an end extending out of the flotation tank through a through hole provided at the top of the flotation tank.

[0012] The flotation device for producing fluorite concentrate, the stirring drive mechanism includes a motor, the motor is located at the top of the flotation tank, the motor is provided with a rotating shaft A located at the top of the motor, a driving pulley A is sleeved on the outside of the rotating shaft A, a driven pulley A is sleeved on the upper end of the stirring shaft located outside the top of the flotation tank, and a transmission belt A is sleeved on the outside of the driving pulley A and the driven pulley A.

[0013] The flotation device for producing fluorite concentrate is a support cylinder rotatably sleeved on the outside of a stirring shaft located at the top of a flotation tank, one end of which is fixedly connected to the top of the flotation tank and the other end of which is slidably connected to a driven pulley A.

[0014] The controller of the flotation device for producing fluorite concentrate is a PLC controller or a single chip microcomputer.

[0015] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: The flotation device for producing fluorite concentrate described in the present invention controls the forward and reverse motors A and B to rotate forward and reverse as needed by a controller, so that the lower end of the scraper runs in a straight line from the junction of the froth and the ore pulp liquid on one side of the flotation tank to the mouth of the froth outlet to scrape out all the planar froth floating on the top of the ore pulp liquid between the scraper and the mouth of the froth outlet. The present invention solves the problem that the traditional froth scraping mechanism can only contact the froth tangentially and the scraping effect is not ideal through the simple cooperation of the forward and reverse motors A and B, thereby increasing the flotation effect of the fluorite concentrate and improving the flotation quality of the fluorite concentrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the foam scraping mechanism of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 It is a structural schematic diagram of the present invention in which the lower end of the slide rod is located above the foam when the slide rod rises to the highest point when the slide rod is vertical; Figure 5 It is a structural schematic diagram of the present invention in which the lower end of the slide rod is located in the ore slurry liquid when the slide rod is vertically lowered to the lowest point; Figure 6 It is a structural schematic diagram of the present invention in which the lower end of the slide bar inclined toward the flotation tank rises to the highest point; Figure 7 It is a structural schematic diagram of the present invention in which the lower end of the slide bar inclined toward the flotation tank is lowered to the lowest point and is located at the junction of the ore pulp liquid and the froth; Figure 8 It is a structural schematic diagram of the present invention in which the lower end of the slide rod is located at the junction of the slurry liquid and the froth when the slide rod is vertical; Fig. 9 It is a structural schematic diagram of the present invention in which the lower end of the slide rod inclined toward the frothing nozzle is lowered to the lowest point and contacts the mouth of the frothing nozzle; Fig.10 It is a schematic structural diagram of the present invention in which the lower end of the slide rod inclined toward the frothing nozzle protrudes out of the mouth of the frothing nozzle.

[0017] In the figure: 1, driving pulley A; 2, rotating shaft A; 3, driving belt A; 4, driven pulley A; 5, scraping mechanism; 6, foam outlet; 7, foam collecting tank; 8, supporting cylinder; 9, motor; 10, flotation tank; 11, pulp outlet pipe; 12, sleeve; 13, sliding rod; 14, sliding sleeve; 15, connecting rod; 16, gear; 17, rack; 18, rotating shaft B; 19, reducer A; 20, driving pulley B; 21, rotating shaft C; 22, reducer device B; 23, forward and reverse motor A; 24, shaft; 25, scraper; 26, forward and reverse motor B; 27, driven pulley B; 28, transmission belt B; 29, support rod; 30, motor support rod; 31, stirring shaft; 32, cover; 33, froth; 34, cavity; 35, sleeve; 36, cylinder cavity; 37, air inlet pipe; 38, ring plate; 39, perforation; 40, slurry inlet pipe; 41, stirring paddle; 42, guide cover; 43, ore slurry liquid. DETAILED DESCRIPTION

[0018] The present invention can be explained in more detail by the following examples, the present invention is not limited to the following examples, and the purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention; In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0019] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0020] Combined with Figures 1 to 3The flotation device for producing fluorite concentrate comprises a flotation tank 10, a cavity 34 is provided in the flotation tank 10, a stirring mechanism is provided in the cavity 34, the stirring mechanism comprises a sleeve 35, a barrel cavity 36 is provided in the sleeve 35, a cover 32 is provided at the upper end of the sleeve 35, a through hole 39 is provided at the center of the cover 32, the upper end of the sleeve 35 is fixedly connected to the inner top of the cavity 34, a slurry inlet pipe 40 is connected to the barrel cavity 36, a ring plate 38 is sleeved at the lower end of the sleeve 35, and a through hole 39 is provided at the center of the cover 32. The outer edge of the sleeve 35 is provided with a guide cover 42 extending downward near the bottom of the barrel cavity 36, and the center of the barrel cavity 36 is provided with a stirring shaft 31, the upper end of which extends out of the through hole provided at the top of the flotation tank 10 and is rotatably connected to the through hole 39. The lower end of the stirring shaft 31 extends into the guide cover 42, and a stirring paddle 41 is provided on the stirring shaft 31 located in the guide cover 42. An air inlet pipe 37 extending upward and having its end extending to the outside of the flotation tank 10 along the through hole provided at the top of the flotation tank 10 is provided in the middle of the sleeve 35. A stirring drive mechanism is provided at the top of the flotation tank 10, and the stirring drive mechanism includes a motor 9, which is located at the top of the flotation tank 10. The motor 9 is provided with a rotating shaft A2 which is located at the top of the motor 9. A driving pulley A1 is sleeved on the outside of the rotating shaft A2. A driven pulley A4 is sleeved on the upper end of the stirring shaft 31 located outside the top of the flotation tank 10. A transmission belt A3 is sleeved on the outside of the driving pulley A1 and the driven pulley A4. The stirring shaft 31 located at the top of the flotation tank 10 is sleeved on the upper end of the stirring shaft 31. The outer rotating sleeve is connected with a support tube 8, one end of which is fixedly connected to the top of the flotation tank 10 and the other end is slidably connected to the driven pulley A4. A froth outlet 6 with an open top is provided on one side of the flotation tank 10, a froth scraping mechanism 5 is provided on the top of the froth outlet 6, and a froth collecting tank 7 is provided below the mouth of the froth outlet 6. A slurry inlet pipe 40 penetrating the interior of the stirring mechanism is provided on the side wall at one end of the flotation tank 10, and a slurry outlet pipe 11 penetrating the cavity 34 is provided on the side wall at the other end of the flotation tank 10. The froth scraping mechanism 5 includes a shaft 24,Rings 12 are rotatably sleeved at both ends of the shaft rod 24, and the two rings 12 are fixedly connected to the two ends of the foam outlet nozzle 6. The middle and upper parts of the outer walls of the two sliding sleeves 14 are fixedly connected to the ends of one side of the shaft rod 24. Slide rods 13 are slidably connected in the two sliding sleeves 14. The upper ends of the two sliding rods 13 extend out of the two sliding sleeves 14, and a connecting rod 15 is provided between the upper ends of the two sliding rods 13. The lower ends of the two sliding rods 13 extend out of the two sliding sleeves 14, and a scraper 25 is provided between the lower ends of the two sliding rods 13. The upper end of the rack 17 located in the middle of one side of the shaft rod 24 and parallel to the two sliding rods 13 is fixedly connected to the middle of the connecting rod 15, and the lower end of the rack 17 is fixedly connected to the middle of the scraper 25. A forward and reverse motor B26 is fixedly connected to a position near the middle of one side of the shaft rod 24, and a gear 16 is sleeved on the rotating shaft B18 provided on the forward and reverse motor B26. A reducer 19 is provided between the machine B26, the gear 16 and the rack 17 are meshed, a driven pulley B27 is sleeved between the sliding sleeve 14 and the ring 12 at one end of the shaft 24, a forward and reverse motor A23 is fixedly connected to the foam outlet 6 at one end of the shaft 24, a support rod 29 is provided between the two rings 12 and the two ends of the foam outlet 6, a motor support rod 30 is provided between the support rod 29 at one end of the shaft 24 and the forward and reverse motor A23, a driving pulley B20 is sleeved on the rotating shaft C21 provided on the forward and reverse motor A23, a reducer B22 is provided between the rotating shaft C21 and the forward and reverse motor A23, a transmission belt B28 is sleeved on the outside of the driving pulley B20 and the driven pulley B27, and the forward and reverse motor B26 and the forward and reverse motor A23 are respectively electrically connected to the controller, which is a PLC controller or a single-chip microcomputer. ,

[0021] To implement the flotation device for producing fluorite concentrate of the present invention, the motor 9, the forward and reverse motor A23, the forward and reverse motor B26 and the controller are connected to the switch and the power supply respectively. The controller is a prior art and will not be described in detail. When in use, the ore pulp liquid 43 with flotation reagent added enters the barrel cavity 36 through the slurry inlet pipe 40, the motor 9 is turned on, the rotating shaft A2 drives the driven pulley A4 to rotate through the active pulley A1, thereby driving the stirring shaft 31 to rotate, and the stirring paddle 41 arranged on the stirring shaft 31 stirs the ore pulp liquid 43 flowing from the barrel cavity 36 into the guide cover 42, and during stirring, the air inlet pipe 37 inflates the ore pulp liquid 43 in the barrel cavity 36 and the guide cover 42, and the fluorite particles in the ore pulp liquid 43 flow from the guide cover 42 to the cavity 34 along with the generated bubbles and continuously float up, and finally float on the liquid surface of the ore pulp liquid 43 to form a stable froth 33, and the froth scraping mechanism 5 continuously scrapes the froth 33 containing fluorite particles floating on the top of the ore pulp liquid 43 from the froth outlet 6 to the froth collecting tank 7; Combined with Figure 4When the controller controls the forward and reverse motor A23 to rotate and drive the driving pulley B20 to rotate, the transmission belt B28 transmits the transmission to the driven pulley B27 to drive the shaft 24 to rotate so that the two slide bars 13 are in a vertical state, the controller controls the forward and reverse motor B26 to drive the gear 16 to rotate, the gear 16 and the rack 17 are meshed so that the scraper 25 is at the highest point, and the lower end of the scraper 25 is located above the foam 33. Combined with Figure 5 When the controller controls the forward and reverse motor A23 to rotate and drive the driving pulley B20 to rotate, the transmission belt B28 transmits the transmission to the driven pulley B27 to drive the shaft 24 to rotate so that the two slide bars 13 are in a vertical state, the controller controls the forward and reverse motor B26 to drive the gear 16 to rotate, and the gear 16 and the rack 17 are engaged to make the scraper 25 at the lowest point. The lower end of the scraper 25 is located in the slurry liquid 43, When the foam scraping mechanism 5 is in use: Combined with Figure 6 The controller controls the forward and reverse motor B26 to extend the lower part of the two slide bars 13 out of the two sleeves 14 to the shortest, and the controller controls the forward and reverse motor A23 to make the lower end of the scraper 25 deviate to one side of the flotation tank 10. Figure 7 Then, the controller controls the forward and reverse motor B26 to make the lower parts of the two slide bars 13 extend out of the two slide sleeves 14 to the longest. At this time, the lower end of the scraper 25 is located at the junction of the froth 33 and the slurry liquid 43. Figure 8 The controller controls the forward and reverse motor A23 to gradually move the lower end of the scraper 25 toward the mouth of the froth outlet 6. At the same time, the controller controls the forward and reverse motor B26 to gradually retract the lower parts of the two slide bars 13 into the two sleeves 14. The forward and reverse motors A23 and B26 are started and coordinated at the same time to make the lower end of the scraper 25 move linearly from the side of the flotation tank 10 to the bottom of the shaft 24 along the junction of the froth 33 and the slurry liquid 43. The scraper 25 gradually drives and scrapes the froth 33 floating on the top of the slurry liquid 43 between the scraper 25 and the mouth of the froth outlet 6 toward the mouth of the froth outlet 6. Fig. 9 When the lower end of the scraper 25 reaches the bottom of the shaft 24, the controller controls the forward and reverse motors A23 to make the lower end of the scraper 25 continue to gradually move toward the mouth of the froth outlet nozzle 6. At the same time, the controller controls the forward and reverse motors B26 to reverse so that the lower parts of the two slide bars 13 gradually extend out of the two sliding sleeves 14. The forward and reverse motors A23 and B26 are started at the same time to make the lower end of the scraper 25 move linearly from the bottom of the shaft 24 to the mouth of the froth outlet nozzle 6 along the junction of the froth 33 and the slurry liquid 43 until the lower parts of the two slide bars 13 extend out of the two sliding sleeves 14 to the longest. At this time, the lower end of the scraper 25 just contacts the mouth of the froth outlet nozzle 6. The scraper 25 scrapes all the froth 33 floating on the top of the slurry liquid 43 and located between the scraper 25 and the mouth of the froth outlet nozzle 6 toward the mouth of the froth outlet nozzle 6. Fig.10, the forward and reverse motor A23 continues to rotate, and the lower end of the scraper 25 slightly escapes from the mouth of the foam outlet 6, forming a suspended state. At this time, the controller controls the forward and reverse motor B26 to make the lower parts of the two slide bars 13 extend out of the two slide sleeves 14 to the shortest, and the controller controls the forward and reverse motor A23 to reverse so that the lower parts of the two slide bars 13 reach the adjacent Figure 6 (the lower end of the scraper 25 is biased toward the side of the flotation tank 10), achieving a froth scraping process; The newly generated froth 33 of the stirring mechanism is continuously scraped out in a cyclic operation according to the above steps, so that the lower end of the scraper 25, whose lower end is located at the junction of the froth 33 and the slurry liquid 43 and is biased toward the side of the flotation tank 10, can effectively scrape out all the planar froth 33 floating on the top of the slurry liquid 43 between the scraper 25 and the mouth of the froth outlet 6.

[0022] Parts of the present invention not described in detail are prior art.

Claims

1. A flotation device for producing fluorite concentrate, comprising a flotation cell (10), wherein a cavity (34) is provided in the flotation cell (10), wherein: A stirring mechanism is provided in the cavity (34), a stirring drive mechanism is provided at the top of the flotation tank (10), a frothing nozzle (6) with an open top is provided on one side of the flotation tank (10), a frothing scraping mechanism (5) is provided at the top of the frothing nozzle (6), a slurry inlet pipe (40) penetrating the interior of the stirring mechanism is provided on the side wall at one end of the flotation tank (10), a slurry outlet pipe (11) penetrating the cavity (34) is provided on the side wall at the other end of the flotation tank (10), the frothing scraping mechanism (5) comprises a shaft (24), a ) are rotatably sleeved with sleeve rings (12) at both ends, the two sleeve rings (12) are fixedly connected to the two ends of the foam outlet nozzle (6), the middle and upper parts of the outer walls of the two sliding sleeves (14) are fixedly connected to the ends of one side of the shaft rod (24), and the two sliding sleeves (14) are slidably connected with sliding rods (13), the upper ends of the two sliding rods (13) extend out of the two sliding sleeves (14), and a connecting rod (15) is provided between the upper ends of the two sliding rods (13), and the lower ends of the two sliding rods (13) extend out of the two sliding sleeves (14) and the lower ends of the two sliding rods (13) are connected to the shaft rod (24). A scraper (25) is provided between the two slide bars (13), the upper end of a rack (17) located in the middle of one side of the shaft (24) and parallel to the two slide bars (13) is fixedly connected to the middle of the connecting rod (15), the lower end of the rack (17) is fixedly connected to the middle of the scraper (25), a forward and reverse motor B (26) is fixedly connected to a position near the middle of one side of the shaft (24), a gear (16) is sleeved on a rotating shaft B (18) provided on the forward and reverse motor B (26), the gear (16) and the rack (17) are meshed, and a gear (16) is provided on one side of the shaft (24). A driven pulley B (27) is sleeved between the sliding sleeve (14) and the sleeve ring (12) at the end, a forward and reverse motor A (23) is fixedly connected to the foam outlet nozzle (6) at one end of the shaft (24), a driving pulley B (20) is sleeved on a rotating shaft C (21) provided on the forward and reverse motor A (23), a transmission belt B (28) is sleeved on the outside of the driving pulley B (20) and the driven pulley B (27), and the forward and reverse motor B (26) and the forward and reverse motor A (23) are respectively electrically connected to a controller.

2. The flotation device for producing fluorite concentrate according to claim 1, characterized in that: A speed reducer A (19) is provided between the rotating shaft B (18) and the forward and reverse motor B (26).

3. The flotation device for producing fluorite concentrate according to claim 1, characterized in that: A speed reducer B (22) is provided between the rotating shaft C (21) and the forward and reverse motor A (23).

4. The flotation device for producing fluorite concentrate according to claim 1, characterized in that: A foam collecting groove (7) is provided below the mouth of the foam outlet nozzle (6).

5. The flotation device for producing fluorite concentrate according to claim 1, characterized in that: A support rod (29) is provided between the two rings (12) and the two ends of the foam outlet nozzle (6), and a motor support rod (30) is provided between the support rod (29) located at one end of the shaft rod (24) and the forward and reverse motor A (23).

6. The flotation device for producing fluorite concentrate according to claim 1, characterized in that: The stirring mechanism comprises a sleeve (35), a barrel cavity (36) is provided in the sleeve (35), a cover (32) is provided at the upper end of the sleeve (35), a through hole (39) is provided at the central part of the cover (32), the upper end of the sleeve (35) is fixedly connected to the inner top of the cavity (34), a slurry inlet pipe (40) and the barrel cavity (36) are connected, a ring plate (38) is sleeved at the lower end of the sleeve (35), a guide cover (42) extending downward close to the bottom of the barrel cavity (36) is provided at the outer edge of the ring plate (38), a stirring shaft (31) is provided at the central part of the barrel cavity (36), the upper end of the stirring shaft (31) extends out of the through hole provided at the top of the flotation tank (10) and is rotatably connected to the through hole (39), the lower end of the stirring shaft (31) extends into the guide cover (42), and a stirring paddle (41) is provided on the stirring shaft (31) located in the guide cover (42).

7. The flotation device for producing fluorite concentrate according to claim 6, characterized in that: An air inlet pipe (37) is provided in the middle of the sleeve (35) and extends upward, with an end thereof extending out to the outside of the flotation tank (10) along a through hole provided at the top of the flotation tank (10).

8. The flotation device for producing fluorite concentrate according to claim 6, characterized in that: The stirring drive mechanism comprises a motor (9), the motor (9) being located at the top of a flotation tank (10), the motor (9) being provided with a rotating shaft A (2) being located at the top of the motor (9), a driving pulley A (1) being sleeved on the outside of the rotating shaft A (2), a driven pulley A (4) being sleeved on the upper end of a stirring shaft (31) located outside the top of the flotation tank (10), and a transmission belt A (3) being sleeved on the outside of the driving pulley A (1) and the driven pulley A (4).

9. The flotation device for producing fluorite concentrate according to claim 8, characterized in that: The stirring shaft (31) located at the top of the flotation tank (10) is externally rotatably sleeved with a support cylinder (8) having one end fixedly connected to the top of the flotation tank (10) and the other end slidably connected to a driven pulley A (4).

10. The flotation device for producing fluorite concentrate according to claim 1, characterized in that: The controller is a PLC controller or a single chip microcomputer.

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