Flotation machine for automatically screening ores

Abstract

The flotation machine comprises a flotation barrel used for adding minerals and suspension liquid, a double-end hollow shaft motor used for providing power is arranged in the center of the bottom of the flotation barrel, and a hollow output shaft of the double-end hollow shaft motor is in clamping transmission with a power shaft rod. High-pressure gas is fed into a hollow output shaft of the double-end hollow shaft motor through external equipment, a foaming disc capable of sliding up and down is arranged at the top of the power shaft rod, when the power shaft rod rotates, a bottom ring notch of the foaming disc is matched with an inner ring boss of the flotation barrel in an up-down floating mode, gas paths in the driven shaft rod, the power shaft rod and the branch support are communicated, and the flotation barrel is driven to rotate. The high-pressure gas is uniformly filled into the fluid in the flotation barrel through the driven shaft rod, the driven shaft rod synchronously rotates when revolving around the power shaft rod, and the driven shaft rod drives the fluid in the flotation barrel to circularly stir in the vertical direction while rotating, so that minerals are more fully contacted with suspension liquid, and the flotation efficiency is improved. And the flotation efficiency of the suspension is improved.

Description

Technical Field

[0001] The invention relates to the field of mining processing, and in particular to a flotation machine for automatic screening of ore. Background Art

[0002] Flotation machine is a kind of equipment used for automatic screening of ore. It is mainly used in the process of ore dressing to separate useful minerals from waste rocks by physical and chemical methods, so as to achieve the purpose of extracting useful minerals. The working principle of flotation machine is to use the interaction between ore and reagent to make useful minerals float to the surface of liquid together with foam, while waste rocks sink to the bottom. In the flotation process, the stirring device mixes the ore and reagent, and the gas supply system injects gas into the flotation tank to generate foam, and then the foam separation device separates the useful minerals from the foam. In the prior art, the stirring device inside the flotation machine only stirs in the horizontal direction, and the fluid inside the flotation barrel is only stirred horizontally without any stirring and circulating action in the vertical direction, so that the contact between the mineral and the suspension is not sufficient, and the fusion effect of the mineral and the suspension is poor. At the same time, the foam of the conventional flotation machine is generated by the gas introduced into the suspension, the foaming speed on the surface of the suspension is slow, and the flotation efficiency is low. Summary of the invention

[0003] The purpose of the present invention is to solve any one of the problems in the above-mentioned technologies, thereby proposing a flotation machine for automatic screening of ore.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a flotation machine for automatic screening of ore, including a flotation barrel for adding minerals and suspension and a double-headed hollow shaft motor for providing power is arranged at the center of its bottom, the hollow output shaft of the double-headed hollow shaft motor is locked with the power shaft for transmission, and high-pressure gas is sent into the hollow output shaft of the double-headed hollow shaft motor by an external device, and a bubbler disc that can slide up and down is arranged on the top of the power shaft, and when the power shaft rotates, the bottom ring notch of the bubbler disc floats up and down with the inner ring boss of the flotation barrel, and the bubbler disc injects more air into the suspension to improve the foaming amount and flotation efficiency of the equipment, and the power shaft is divided into a circular array on the periphery through a divided bracket. There are multiple driven shafts, and the driven shafts, power shafts and the gas paths inside the sub-brackets are connected. The high-pressure gas is uniformly filled into the flotation barrel fluid through the driven shafts, the air content inside the equipment is improved, the foaming amount and flotation efficiency of the equipment are increased, and the power shaft drives the driven shaft to rotate through the engagement of the power gear and the driven gear. When the driven shaft revolves around the power shaft, the driven shaft rotates synchronously. A positive spiral ring tube and a reverse spiral ring tube are respectively arranged on both sides of the driven shaft. When the driven shaft rotates, it drives the fluid inside the flotation barrel to circulate and stir in the vertical direction, thereby improving the stirring efficiency of the fluid inside the flotation barrel, making the contact between the mineral and the suspension more complete, and improving the flotation efficiency of the suspension.

[0005] Furthermore, the flotation barrel is in the shape of a cylinder, and an inner ring opening is arranged on the inner wall of the top opening of the flotation barrel, and an inner ring boss with an inclined side surface and a circumferential distribution is arranged at the bottom of the inner ring opening, a material guide groove is arranged on the outer wall on the right side of the top opening of the flotation barrel, a rotating shaft table with a circular hole passing through the center is arranged at the center of the bottom of the inner wall of the flotation barrel, and a slag discharge port is arranged at the bottom left side of the outer wall of the flotation barrel.

[0006] Furthermore, a detachable plug is embedded in the slag discharge port of the flotation barrel, and a rotatable power shaft is passed through the rotating shaft platform of the flotation barrel.

[0007] Furthermore, the power shaft body is an outer paddle shaft with a spiral blade on the outer wall, and an air outlet shaft seat is provided in the center of the upper and lower surfaces of the outer paddle shaft, and sub-brackets are sleeved on the air outlet shaft seats on the upper and lower surfaces of the outer paddle shaft, and the air outlet shaft seat is a truncated cone with a semicircular ring groove in the center of the side, and an optical axis-shaped transmission shaft seat is provided on the top of the air outlet shaft seat on the upper surface of the outer paddle shaft, and the power gear card is nested on the transmission shaft seat and rotates therewith, and an external tooth shaft seat with external thread teeth on the outer wall is provided on the top of the transmission shaft seat, and the T-nut is meshed and locked with the external thread teeth of the external tooth shaft seat, and a hexagonal shaft seat in the shape of a hexagonal boss is provided on the top of the external tooth shaft seat, and the bubble disc floats up and down. It is sleeved on the hexagonal shaft seat, and a cross shaft seat is arranged on the top of the hexagonal shaft seat. The cross shaft seat is a truncated cone with a cross notch in the center. The cross scraper is embedded and fixed in the cross notch of the cross shaft seat and rotates therewith. The bottom of the air outlet shaft seat on the lower surface of the outer paddle shaft is provided with an optical axis-shaped rotating shaft seat, and a connecting port is arranged at the bottom center of the rotating shaft seat. The hollow output shaft at the upper end of the double-headed hollow shaft motor is embedded and penetrated in the connecting port. The double-headed hollow shaft motor is fixed at the bottom center of the flotation barrel. An air guide groove is arranged inside the power shaft, and the air guide groove is connected with the semicircular ring notches on the side surfaces of the air outlet shaft seat on the upper and lower surfaces of the outer paddle shaft, and the air guide groove is connected with the connecting port.

[0008] Furthermore, the sub-branch is in the shape of a hexapod tree branch, the center of the sub-branch is the central axis opening, each branch top of the sub-branch is provided with a branch axis opening, the middle section of the side wall of the branch axis opening and the central axis opening is provided with connected air guide holes, the central axis opening of the sub-branch is nested on the air outlet shaft seat of the power shaft rod and rotates therewith, and the air guide hole is connected with the air guide groove, and the driven shaft rod rotates and passes through the branch axis opening of the sub-branch.

[0009] Furthermore, the driven shaft body is a central shaft in the shape of an optical axis, and an air intake shaft seat is provided in the center of the upper and lower surfaces of the central shaft. The air intake shaft seat is a truncated cone with a semicircular ring groove in the center of the side surface, and a smooth axis-shaped embedded shaft seat is provided on the top of the air intake shaft seat on the upper surface of the central shaft. The driven gear is embedded in the embedded shaft seat and rotates therewith. Semi-arc-shaped positive spiral ring tube and reverse spiral ring tube are respectively provided on the left and right sides of the central shaft, and positive spiral ring tube and reverse spiral ring tube are distributed inside the positive spiral ring tube and reverse spiral ring tube. Connected air grooves are provided inside the central shaft, positive spiral ring tube and reverse spiral ring tube, and the air grooves are connected with the semicircular ring grooves on the side surfaces of the air intake shaft seat on the upper and lower surfaces of the central shaft, and the air grooves are connected with the air guide holes of the sub-bracket, and exhaust holes are provided on the surfaces of the central shaft, positive spiral ring tube and reverse spiral ring tube.

[0010] Furthermore, the power gear meshes with a plurality of driven gears to form a planetary gear structure. When the power gear rotates, the driven gears rotate while revolving around it.

[0011] Furthermore, the bubble disc is in the shape of a disk with a boss at the center and a circular step edge at the bottom surface, dense foaming holes are arranged on the surface of the bubble disc, a hexagonal shaft hole in the shape of a hexagonal notch is arranged in the center of the bubble disc, the hexagonal shaft hole is slidably sleeved on the hexagonal shaft seat of the power shaft rod up and down, and a bottom ring notch with an inclined side surface distributed in a circle is arranged on the bottom surface of the circular step edge of the bubble disc, the outer wall of the bubble disc fits with the inner wall of the inner ring mouth of the flotation barrel and slides up and down, and at the same time, the bottom ring notch and the inner ring boss of the flotation barrel are floatingly overlapped.

[0012] The beneficial effects of the present invention are: A double-headed hollow shaft motor is connected to the power shaft for transmission. The power shaft drives the driven shaft to rotate through the meshing of the power gear and the driven gear. The driven shaft rotates synchronously while revolving around the power shaft. A positive spiral ring tube and a reverse spiral ring tube are respectively arranged on both sides of the driven shaft. When the driven shaft rotates, the fluid inside the flotation barrel is driven to circulate and stir in the vertical direction through the positive spiral ring tube and the reverse spiral ring tube, thereby improving the stirring efficiency of the fluid inside the flotation barrel, making the contact between the mineral and the suspension more complete, and improving the extraction effect of the suspension on the mineral.

[0013] High-pressure gas enters the air guide groove of the power shaft from the hollow output shaft of the double-headed hollow shaft motor. The high-pressure gas in the air guide groove is guided by the air guide holes of the sub-bracket to the air groove of the driven shaft, and then introduced into the internal fluid of the flotation barrel from the exhaust hole, so that the material inside the flotation barrel is pumped into high-pressure air while being stirred and extracted, thereby increasing the foam content in the internal fluid of the flotation barrel and improving the extraction efficiency of minerals.

[0014] The outer wall of the bubble disc fits with the inner wall of the inner ring mouth of the flotation barrel and slides up and down. The bubble disc is slidably sleeved on the hexagonal shaft seat of the power shaft rod. The bottom ring notch of the bubble disc floats and overlaps with the inner ring boss of the flotation barrel. When the power shaft rod rotates, the bottom ring notch floats and fits with the inner ring boss of the flotation barrel up and down. The bubble disc injects more air into the suspension to improve the bubble formation efficiency and flotation efficiency on the surface of the suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 An exploded view of the present invention as a whole; Figure 3 A cross-sectional view of the present invention as a whole; Figure 4 This is a schematic diagram of the installation of the driven shaft rod of the present invention; Figure 5 is a cross-sectional view of the installation of the driven shaft of the present invention; Figure 6 is a cross-sectional view of a flotation barrel of the present invention; Figure 7 It is a structural schematic diagram of the power shaft of the present invention; Figure 8 is a cross-sectional view of the power shaft of the present invention; Fig. 9 It is a structural schematic diagram of the foaming plate of the present invention; Fig.10 It is a schematic diagram of the structure of the sub-branch of the present invention; Fig.11 It is a structural schematic diagram of the driven shaft of the present invention; Fig.12 It is a cross-sectional view of the driven shaft of the present invention.

[0016] exist Figures 1 to 12 , the corresponding relationship between the names of the components or lines and the numbers of the drawings is as follows: flotation barrel 1, inner ring opening 101, inner ring boss 102, material guide slot 103, slag discharge port 104, rotating shaft platform 105, plug 2, power shaft 3, outer paddle shaft 301, air outlet shaft seat 302, transmission shaft seat 303, outer tooth shaft seat 304, hexagonal shaft seat 305, cross shaft seat 306, rotating shaft seat 307, connecting port 308, air guide slot 309, cross scraper 4, foaming Disk 5, foaming hole 501, hexagonal shaft hole 502, bottom ring notch 503, T-nut 6, power gear 7, driven gear 8, sub-bracket 9, middle shaft opening 901, branch shaft opening 902, air guide hole 903, driven shaft rod 10, central shaft rod 1001, air inlet shaft seat 1002, embedded shaft seat 1003, positive spiral ring tube 1004, reverse spiral ring tube 1005, exhaust hole 1006, air groove 1007, double-headed hollow shaft motor 11. DETAILED DESCRIPTION

[0017] Please refer to Figures 1 to 12 ; The present embodiment provides a flotation machine for automatic screening of ores, including a flotation barrel 1 for adding minerals and suspensions, and a double-headed hollow shaft motor 11 for providing power is arranged at the center of its bottom, the hollow output shaft of the double-headed hollow shaft motor 11 is locked with a power shaft 3 for transmission, and high-pressure gas is sent into the hollow output shaft of the double-headed hollow shaft motor 11 by an external device, and a bubble disc 5 that can slide up and down is arranged on the top of the power shaft 3. When the power shaft 3 rotates, the bottom ring notch 503 of the bubble disc 5 floats up and down with the inner ring boss 102 of the flotation barrel 1, and the bubble disc 5 injects more air into the suspension to improve the foaming amount and flotation efficiency of the equipment. The power shaft 3 is provided with a plurality of driven shafts 10 distributed in a circular array on the periphery through a sub-bracket 9. The air paths inside the shaft 10, the power shaft 3 and the sub-bracket 9 are connected, and the high-pressure gas is uniformly filled into the fluid of the flotation barrel 1 through the driven shaft 10, so that the air content inside the equipment is improved, and the foaming amount and flotation efficiency of the equipment are increased. The power shaft 3 drives the driven shaft 10 to rotate through the engagement of the power gear 7 and the driven gear 8. When the driven shaft 10 revolves around the power shaft 3, the driven shaft 10 rotates synchronously. A positive spiral ring tube 1004 and a reverse spiral ring tube 1005 are respectively arranged on both sides of the driven shaft 10. When the driven shaft 10 rotates, it drives the fluid inside the flotation barrel 1 to circulate and stir in the vertical direction, thereby improving the stirring efficiency of the fluid inside the flotation barrel 1, making the contact between the mineral and the suspension more complete, and improving the flotation efficiency of the suspension.

[0018] Preferably, the flotation barrel 1 is in the shape of a cylinder, and an inner ring opening 101 is provided on the inner wall of the top opening of the flotation barrel 1, and an inner ring boss 102 with an inclined side surface and a circumferential distribution is provided at the bottom of the inner ring opening 101, a material guide groove 103 is provided on the right outer wall of the top opening of the flotation barrel 1, a rotating shaft platform 105 with a through circular hole at the center is provided at the bottom center of the inner wall of the flotation barrel 1, and a slag discharge port 104 is provided at the bottom left side of the outer wall of the flotation barrel 1.

[0019] Preferably, a detachable plug 2 is embedded in the slag discharge port 104 of the flotation barrel 1 , and a rotatable power shaft 3 is penetrated in the rotating shaft platform 105 of the flotation barrel 1 .

[0020] In a specific embodiment, the mineral residue in the flotation tank 1 is deposited at the bottom of the flotation tank 1 and is cleaned and discharged through a slag discharge port 104 arranged at the bottom.

[0021] Preferably, the main body of the power shaft rod 3 is an outer paddle shaft rod 301 with a spiral blade on the outer wall, and an air outlet shaft seat 302 is provided in the center of the upper and lower surfaces of the outer paddle shaft rod 301. The air outlet shaft seat 302 on the upper and lower surfaces of the outer paddle shaft rod 301 is sleeved with a sub-bracket 9, and the air outlet shaft seat 302 is a truncated cone with a semicircular ring groove in the center of the side surface, and an optical axis-shaped transmission shaft seat 303 is provided on the top of the air outlet shaft seat 302 on the upper surface of the outer paddle shaft rod 301. The power gear 7 is nested in the transmission shaft seat 303 and rotates therewith, and an external tooth shaft seat 304 with external screw teeth on the outer wall is provided on the top of the transmission shaft seat 303, and the T-nut 6 is meshed and locked with the external screw teeth of the external tooth shaft seat 304, and a hexagonal boss-shaped hexagonal shaft seat 305 is provided on the top of the external tooth shaft seat 304, and the bubble disc 5 is floated up and down on the hexagonal On the angular shaft seat 305, a cross shaft seat 306 is arranged on the top of the hexagonal shaft seat 305. The cross shaft seat 306 is a truncated cone with a cross notch in the center. The cross scraper 4 is embedded and fixed in the cross notch of the cross shaft seat 306 and rotates therewith. The bottom of the air outlet shaft seat 302 on the lower surface of the outer paddle shaft 301 is provided with an optical axis-shaped rotating shaft seat 307. The bottom center of the rotating shaft seat 307 is provided with a connecting port 308. The hollow output shaft at the upper end of the double-headed hollow shaft motor 11 is embedded and penetrated in the connecting port 308. The double-headed hollow shaft motor 11 is fixed to the bottom center of the flotation barrel 1. An air guide groove 309 is arranged inside the power shaft 3. The air guide groove 309 is connected with the semicircular ring groove on the side of the air outlet shaft seat 302 on the upper and lower surfaces of the outer paddle shaft 301, and the air guide groove 309 is connected with the connecting port 308.

[0022] In a specific embodiment, when the power shaft 3 rotates, the cross scraper 4 rotates with the power shaft 3. The cross scraper 4 uses centrifugal force to throw the foam fused with minerals on the top of the flotation barrel 1 out of the material guide slot 103 of the flotation barrel 1, and the equipment at the subsequent station collects and stores the foam.

[0023] Preferably, the sub-branch 9 is in the shape of a hexapod tree branch, with the center of the sub-branch 9 being the central axis opening 901. The top of each branch of the sub-branch 9 is provided with a branch axis opening 902, and the middle sections of the side walls of the branch axis opening 902 and the central axis opening 901 are provided with connected air guide holes 903. The central axis opening 901 of the sub-branch 9 is nested on the air outlet shaft seat 302 of the power shaft 3 and rotates therewith, and the air guide hole 903 is connected to the air guide groove 309, and the driven shaft 10 rotates and passes through the branch axis opening 902 of the sub-branch 9.

[0024] In a specific embodiment, a semicircular groove is provided at the center of the side surface of the air outlet shaft seat 302 of the power shaft 3, and the air guide groove 309 is connected with the semicircular grooves on the side surfaces of the air outlet shaft seat 302 on the upper and lower surfaces of the outer paddle shaft 301. The semicircular grooves of the air outlet shaft seat 302 enable the power shaft 3 to still form a passage with the air guide hole 903 of the sub-bracket 9 while rotating.

[0025] Preferably, the main body of the driven shaft rod 10 is a central shaft rod 1001 in the shape of an optical axis, and an air intake shaft seat 1002 is arranged at the center of the upper and lower surfaces of the central shaft rod 1001. The air intake shaft seat 1002 is a truncated cone with a semicircular notch arranged at the center of the side surface, and an optical axis-shaped embedded shaft seat 1003 is arranged at the top of the air intake shaft seat 1002 on the upper surface of the central shaft rod 1001. The driven gear 8 is embedded in the embedded shaft seat 1003 and rotates therewith. The left and right sides of the central shaft rod 1001 are respectively provided with a semi-arc positive spiral ring tube 1004 and a reverse spiral ring tube 1005. Positive spiral tracks and reverse spiral tracks are distributed inside the spiral ring tube 1004 and the reverse spiral ring tube 1005. Connected air grooves 1007 are arranged inside the central shaft 1001, the positive spiral ring tube 1004 and the reverse spiral ring tube 1005. The air grooves 1007 are connected to the semicircular grooves on the sides of the air inlet shaft seat 1002 on the upper and lower surfaces of the central shaft 1001. The air grooves 1007 are connected to the air guide holes 903 of the sub-bracket 9. Exhaust holes 1006 are arranged on the surfaces of the central shaft 1001, the positive spiral ring tube 1004 and the reverse spiral ring tube 1005.

[0026] In a specific embodiment, a semicircular notch is provided at the center of the side surface of the air intake shaft seat 1002 of the driven shaft 10, and the air groove 1007 is connected with the semicircular notch on the side surface of the air intake shaft seat 1002 on the upper and lower surfaces of the center shaft 1001. The semicircular notch of the air intake shaft seat 1002 enables the driven shaft 10 to still form a passage with the air guide hole 903 of the sub-bracket 9 while rotating.

[0027] In a specific embodiment, when the driven shaft 10 rotates, the positive spiral ring tube 1004 and the reverse spiral ring tube 1005 rotate accordingly. When the positive spiral ring tube 1004 and the reverse spiral ring tube 1005 rotate, the positive spiral orbits and reverse spiral orbits inside the positive spiral ring tube 1004 and the reverse spiral ring tube 1005 drive the internal fluid of the flotation barrel 1 to form a turbulent flow circulating in the vertical direction. While the fluid circulates, the high-pressure gas is discharged into the internal fluid of the flotation barrel 1 through the exhaust hole 1006.

[0028] Preferably, the power gear 7 meshes with a plurality of driven gears 8 to form a planetary gear structure, and when the power gear 7 rotates, the driven gears 8 rotate while revolving around it.

[0029] In a specific embodiment, a double-headed hollow shaft motor 11 is connected to the power shaft 3 for transmission. The power shaft 3 drives the driven shaft 10 to rotate through the engagement of the power gear 7 and the driven gear 8. When the driven shaft 10 revolves around the power shaft 3, the driven shaft 10 rotates synchronously.

[0030] Preferably, the bubble disc 5 is in the shape of a disk with a boss at the center and a circular step edge at the bottom surface. The bubble disc 5 is provided with dense foaming holes 501 on the surface. A hexagonal shaft hole 502 in the shape of a hexagonal notch is provided in the center of the bubble disc 5. The hexagonal shaft hole 502 is slidably sleeved on the hexagonal shaft seat 305 of the power shaft rod 3 up and down. The bottom surface of the circular step edge of the bubble disc 5 is provided with a bottom ring notch 503 with a circumferentially distributed side surface as an inclined surface. The outer wall of the bubble disc 5 fits with the inner wall of the inner ring mouth 101 of the flotation barrel 1 and slides up and down. At the same time, the bottom ring notch 503 floats and overlaps with the inner ring boss 102 of the flotation barrel 1.

[0031] When the present invention is used, high-pressure air is connected to the center of the hollow output shaft at the bottom of the double-headed hollow shaft motor 11, and the double-headed hollow shaft motor 11 is started at the same time, and the minerals and suspensions to be floated are introduced into the flotation barrel 1. The double-headed hollow shaft motor 11 is connected and driven by the power shaft rod 3. When the driven shaft rod 10 revolves around the power shaft rod 3, the driven shaft rod 10 rotates synchronously. When the driven shaft rod 10 rotates, it drives the fluid inside the flotation barrel 1 to move vertically through the positive spiral ring tube 1004 and the reverse spiral ring tube 1005. The high-pressure gas is stirred upwardly in a circulating manner, and at the same time, it passes through the air guide groove 309, the air guide hole 903, and the air passage groove 1007 and then is introduced into the internal fluid of the flotation barrel 1 through the exhaust hole 1006. The frothing plate 5 rotates with the power shaft 3, and the bottom ring notch 503 of the frothing plate 5 floats up and down with the inner ring boss 102 of the flotation barrel 1. Dense foam is formed on the surface of the suspension in the flotation barrel 1, and the cross scraper 4 rotates with the power shaft 3 to throw the foam on the surface of the suspension out of the material guide groove 103 of the flotation barrel 1 for collection and storage.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flotation machine for automatic screening of ore, comprising a flotation barrel (1) for adding minerals and suspension, and a double-headed hollow shaft motor (11) for providing power is arranged at the center of its bottom, the hollow output shaft of the double-headed hollow shaft motor (11) is engaged with a power shaft (3) for transmission, and high-pressure gas is fed into the hollow output shaft of the double-headed hollow shaft motor (11) by an external device, characterized in that: The top of the power shaft (3) is provided with a frothing disc (5) that can slide up and down. When the power shaft (3) rotates, the bottom ring notch (503) of the frothing disc (5) floats up and down and fits with the inner ring boss (102) of the flotation barrel (1). The frothing disc (5) injects more air into the suspension, thereby improving the frothing amount and flotation efficiency of the device. The power shaft (3) is provided with a plurality of driven shafts (10) distributed in a circular array on the periphery through a sub-bracket (9). The driven shafts (10), the power shaft (3) and the sub-bracket (9) are connected to each other through air paths. High-pressure gas is uniformly charged into the fluid of the flotation barrel (1) through the driven shafts (10). The air inside the device is The gas content is improved, the foaming amount and flotation efficiency of the equipment are increased, the power shaft (3) drives the driven shaft (10) to rotate through the meshing of the power gear (7) and the driven gear (8), and the driven shaft (10) rotates synchronously when it revolves around the power shaft (3). A positive spiral ring tube (1004) and a reverse spiral ring tube (1005) are respectively provided on both sides of the driven shaft (10), and the driven shaft (10) drives the fluid inside the flotation barrel (1) to circulate and stir in the vertical direction while rotating, thereby improving the stirring efficiency of the fluid inside the flotation barrel (1), making the contact between the mineral and the suspension more complete, and improving the flotation efficiency of the suspension.

2. The flotation machine for automatic screening of ore according to claim 1, characterized in that: The flotation barrel (1) is in the shape of a cylinder. The inner wall of the top opening of the flotation barrel (1) is provided with an inner ring opening (101). The bottom of the inner ring opening (101) is provided with an inner ring boss (102) with a circumferentially distributed side surface being an inclined surface. The outer wall on the right side of the top opening of the flotation barrel (1) is provided with a material guide slot (103). The center of the bottom of the inner wall of the flotation barrel (1) is provided with a rotating shaft platform (105) with a through circular hole at the center. The bottom of the left side of the outer wall of the flotation barrel (1) is provided with a slag discharge port (104).

3. The flotation machine for automatic screening of ore according to claim 2, characterized in that: A detachable plug (2) is embedded in the slag discharge port (104) of the flotation barrel (1), and a rotatable power shaft (3) is inserted into the rotating shaft platform (105) of the flotation barrel (1).

4. The flotation machine for automatic screening of ore according to claim 3, characterized in that: The main body of the power shaft (3) is an outer propeller shaft (301) with a spiral blade on the outer wall. An air outlet shaft seat (302) is provided at the center of the upper and lower surfaces of the outer propeller shaft (301). The air outlet shaft seats (302) on the upper and lower surfaces of the outer propeller shaft (301) are sleeved with sub-brackets (9). The air outlet shaft seat (302) is a truncated cone with a semicircular notch at the center of the side surface. The top of the air outlet shaft seat (302) on the upper surface of the outer propeller shaft (301) is provided with a A transmission shaft seat (303) in the shape of an optical axis is arranged, a power gear (7) is nested in the transmission shaft seat (303) and rotates therewith, an external threaded shaft seat (304) having an outer wall provided with external threads is arranged on the top of the transmission shaft seat (303), a T-shaped nut (6) is meshed and locked with the external threads of the external threaded shaft seat (304), a hexagonal shaft seat (305) in the shape of a hexagonal boss is arranged on the top of the external threaded shaft seat (304), and a foaming plate (5) is arranged on the hexagonal shaft seat in a floating sleeve up and down. (305), a cross shaft seat (306) is arranged on the top of the hexagonal shaft seat (305), the cross shaft seat (306) is a truncated cone with a cross notch at the center, the cross scraper (4) is fixed in the cross notch of the cross shaft seat (306) and rotates therewith, and an optical axis-shaped rotating shaft seat (307) is arranged at the bottom of the outlet shaft seat (302) on the lower surface of the outer paddle shaft (301), and a connecting port (307) is arranged at the bottom center of the rotating shaft seat (307) 308), the hollow output shaft at the upper end of the double-headed hollow shaft motor (11) is inserted into the connection port (308), the double-headed hollow shaft motor (11) is fixed at the center of the bottom surface of the flotation barrel (1), an air guide groove (309) is arranged inside the power shaft rod (3), the air guide groove (309) is connected to the semicircular groove on the side of the air outlet shaft seat (302) on the upper and lower surfaces of the outer paddle shaft rod (301), and the air guide groove (309) is connected to the connection port (308).

5. The flotation machine for automatic screening of ore according to claim 4, characterized in that: The sub-branch (9) is in the shape of a hexapod tree branch, the center of the sub-branch (9) is a central axis opening (901), each branch top of the sub-branch (9) is provided with a branch axis opening (902), the middle section of the side wall of the branch axis opening (902) and the central axis opening (901) is provided with a connected air guide hole (903), the central axis opening (901) of the sub-branch (9) is nested on the air outlet shaft seat (302) of the power shaft rod (3) and rotates therewith, and the air guide hole (903) is connected to the air guide groove (309), and the driven shaft rod (10) is rotatably inserted into the branch axis opening (902) of the sub-branch (9).

6. The flotation machine for automatic screening of ore according to claim 5, characterized in that: The main body of the driven shaft (10) is a central shaft (1001) in the shape of an optical axis. An air intake shaft seat (1002) is arranged at the center of the upper and lower surfaces of the central shaft (1001). The air intake shaft seat (1002) is a truncated cone with a semicircular notch arranged at the center of the side surface. A light axis-shaped embedded shaft seat (1003) is arranged at the top of the air intake shaft seat (1002) on the upper surface of the central shaft (1001). The driven gear (8) is embedded in the embedded shaft seat (1003) and rotates therewith. A semi-arc positive spiral ring tube (1004) and a reverse spiral ring tube (1005) are arranged on the left and right sides of the central shaft (1001), respectively. The positive spiral ring tube (1004) A positive spiral track and a reverse spiral track are distributed inside the central shaft (1001), the positive spiral ring tube (1004) and the reverse spiral ring tube (1005), and a connected air groove (1007) is arranged inside the central shaft (1001), the positive spiral ring tube (1004) and the reverse spiral ring tube (1005), and the air groove (1007) is connected to the semicircular ring groove on the side of the air inlet shaft seat (1002) on the upper and lower surfaces of the central shaft (1001), and the air groove (1007) is connected to the air guide hole (903) of the sub-bracket (9), and the surfaces of the central shaft (1001), the positive spiral ring tube (1004) and the reverse spiral ring tube (1005) are all provided with exhaust holes (1006).

7. The flotation machine for automatic screening of ore according to claim 4, characterized in that: The power gear (7) meshes with a plurality of driven gears (8) to form a planetary gear structure; when the power gear (7) rotates, the driven gears (8) rotate while revolving around it.

8. The flotation machine for automatic screening of ore according to claim 4, characterized in that: The frothing disc (5) is in the shape of a disc with a boss at the center and a circular step edge at the bottom surface. The surface of the frothing disc (5) is provided with dense foaming holes (501). A hexagonal shaft hole (502) in the shape of a hexagonal notch is provided at the center of the frothing disc (5). The hexagonal shaft hole (502) is slidably sleeved on the hexagonal shaft seat (305) of the power shaft rod (3) up and down. The bottom surface of the circular step edge of the frothing disc (5) is provided with bottom ring notches (503) with inclined sides distributed in a circumference. The outer wall of the frothing disc (5) fits the inner wall of the inner ring opening (101) of the flotation barrel (1) and slides up and down. At the same time, the bottom ring notch (503) and the inner ring boss (102) of the flotation barrel (1) are floatingly overlapped.

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