Flotation machine with efficient stirring function

Abstract

The utility model relates to an efficient stirring flotation machine, and belongs to the field of flotation machines. The efficient stirring flotation machine comprises a slurry bearing barrel, a main stirring assembly, an auxiliary stirring assembly and a driving device; an opening is formed in the upper end of the slurry bearing barrel, and a discharging opening is formed in the upper side of the circumferential surface of the slurry bearing barrel; the main stirring assembly is coaxially arranged in the slurry bearing barrel, the main stirring device comprises a rotating shaft and an impeller, the rotating shaft is rotationally arranged in the axis direction of the slurry bearing barrel, the impeller is arranged at the end, close to the bottom of the slurry bearing barrel, of the rotating shaft, and the rotating shaft and the impeller rotate synchronously; the auxiliary stirring assembly comprises a plurality of auxiliary stirring shafts, a plurality of stirring fan blades are arranged on the auxiliary stirring shafts in the axis direction, and the auxiliary stirring shafts are arranged in the circumferential direction of the slurry bearing barrel; and the driving device is arranged above the slurry bearing barrel and simultaneously drives the main stirring assembly and the auxiliary stirring assembly to rotate. The method has the effect of improving the flotation efficiency of the ore pulp.

Description

Technical Field

[0001] The present application relates to the field of flotation machines, and in particular to a flotation machine with high efficiency stirring. Background Art

[0002] Flotation machine is a commonly used ore sorting equipment, mainly used to separate useful minerals from non-useful minerals in ores. In the flotation machine, the ore pulp treated with reagents is stirred and aerated, so that some mineral particles are selectively fixed on the bubbles generated by stirring; the particles that float to the surface of the ore pulp are scraped out to form foam products, and the rest are retained in the ore pulp to achieve the purpose of separating minerals.

[0003] With respect to the above-mentioned related technologies, the flotation machine has a good stirring effect on the ore pulp, but there is usually only one stirring rod in the slurry barrel of the flotation machine for unidirectional stirring, so that the mineral particles in the ore pulp cannot be evenly distributed in the slurry barrel, resulting in low flotation efficiency of the mineral particles. Utility Model Content

[0004] In order to improve the flotation efficiency of ore pulp, the present application provides a flotation machine with high efficiency stirring.

[0005] The present application provides a flotation machine with high efficiency stirring, which adopts the following technical solution:

[0006] A flotation machine with high efficiency stirring comprises a slurry barrel, a main stirring assembly, an auxiliary stirring assembly and a driving device; the upper end of the slurry barrel is opened, and a discharge port is provided at the upper position of the circumference of the slurry barrel; the main stirring assembly is coaxially arranged in the slurry barrel, and the main stirring device comprises a rotating shaft and an impeller, the rotating shaft is arranged to rotate along the axial direction of the slurry barrel, the impeller is arranged at one end of the rotating shaft close to the bottom of the slurry barrel, and the rotating shaft rotates synchronously with the impeller; the auxiliary stirring assembly comprises a plurality of groups of auxiliary stirring shafts, a plurality of stirring blades are arranged on the auxiliary stirring shaft along the axial direction, and the plurality of groups of auxiliary stirring shafts are arranged in the circumferential direction of the slurry barrel; the driving device is arranged above the slurry barrel, and the driving device simultaneously drives the main stirring assembly and the auxiliary stirring assembly to rotate.

[0007] By adopting the above technical solution, the slurry to be floated is introduced into the slurry barrel, and the active stirring component and the auxiliary stirring component rotate simultaneously under the drive of the driving device. The auxiliary stirring component is arranged around the main stirring component, and the auxiliary stirring component is close to the inner wall of the slurry barrel to stir the slurry close to the inner wall of the slurry barrel. During the stirring process, a large amount of foam is generated in the slurry, and the metal to be floated in the slurry is attached to the foam, and the foam overflows from the discharge port to complete the flotation. The stirring device stirs and foams the slurry in the middle area and the edge area of ​​the box, so that the stirring device covers a wider area and the foaming area is larger, thereby improving the flotation efficiency of the ore.

[0008] Optionally, the driving device includes a planetary gear mechanism and a driving motor, the planetary gear mechanism includes a sun gear, a planetary wheel and a passive ring gear, the driving motor drives the sun gear to rotate, the sun gear is respectively connected to the output end rotating shaft of the driving motor, and the planetary wheel is connected to the auxiliary stirring shaft.

[0009] By adopting the above technical solution, the sun gear is coaxially connected to the rotating shaft, the planetary gear is coaxially connected to the auxiliary stirring shaft, and the planetary gear mechanism is used to drive the rotating shaft and the auxiliary stirring shaft at the same time, and the structure is compact and the driving device size is small. The planetary gears are evenly distributed on both sides of the sun gear, which can not only balance the inertia force of each planetary gear and the rotating arm, but also make the planetary gear mechanism have better stability and the ability to resist impact and vibration.

[0010] Optionally, a baffle is provided on one side of the driving device close to the connecting piece, and the baffle isolates the driving device from the slurry barrel.

[0011] By adopting the above technical solution, the baffle separates the driving device and the slurry barrel, preventing the material in the slurry barrel from splashing into the planetary gear mechanism during operation and causing wear of the planetary gear during operation.

[0012] Optionally, a plurality of through holes are provided on the stirring blade.

[0013] By adopting the above technical solution, during the stirring process, the stirring blades rotate along with the auxiliary stirring shaft, and the slurry flows through the through holes, which can generate a large number of bubbles and improve the flotation efficiency.

[0014] Optionally, a plurality of stirring blade arrays are provided.

[0015] By adopting the above technical solution, a plurality of stirring blades are arranged in an array in the circumferential direction of the auxiliary stirring shaft, which increases the contact area between the auxiliary stirring device and the slurry, thereby improving the stirring efficiency of the auxiliary stirring device.

[0016] Optionally, a foam scraper is provided on the auxiliary stirring shaft, the foam scraper is flush with the discharge port, and the foam scraper rotates around the axis of the stirring shaft.

[0017] By adopting the above technical solution, the foam scraper is flush with the discharge port. During the rotation of the foam scraper, the foam generated by the slurry is pushed to the discharge port position, so that the foam is discharged from the discharge port direction, thereby improving the flotation efficiency of the flotation machine.

[0018] Optionally, the foam scraper is tilted toward one side of the rotation direction.

[0019] By adopting the above technical solution, the foam scraper is inclined in the direction of rotation, and the inclined surface of the foam scraper can better abut against the foam when the foam scraper rotates, thereby pushing the foam out more efficiently.

[0020] Optionally, the foam scraper is rotatably connected to the auxiliary stirring shaft near both ends along the length direction, and the auxiliary stirring shaft drives the foam scraper to rotate.

[0021] By adopting the above technical solution, the foam scraper is driven to rotate by the auxiliary stirring shafts rotatably connected at both ends along the length direction. The auxiliary stirring shafts are coaxially connected to the planetary gear and rotate in the circumferential direction. The rotation speed of the foam scraper is reduced accordingly, so that the foam generated by flotation can be discharged from the discharge port in time under the push of the foam scraper.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The ore pulp to be floated is introduced into the slurry barrel. The active stirring component and the auxiliary stirring component rotate simultaneously under the drive of the driving device. The auxiliary stirring component is arranged around the main stirring component. The auxiliary stirring component is close to the inner wall of the slurry barrel and stirs the ore pulp near the inner wall of the slurry barrel. During the stirring process, a large amount of foam is generated in the ore pulp. The metal to be floated in the ore pulp adheres to the foam, and the foam overflows from the discharge port to complete the flotation. The stirring device stirs and foams the ore pulp in the middle area and the edge area of ​​the box, so that the stirring device covers a wider area and the foaming area is larger, thereby improving the flotation efficiency of the ore;

[0024] 2. The sun gear is coaxially connected to the rotating shaft, and the planetary gear is coaxially connected to the auxiliary stirring shaft, and the planetary gear mechanism is used to drive the rotating shaft and the auxiliary stirring shaft at the same time. The structure is compact and the drive device is small in size. The planetary gears are evenly distributed on both sides of the sun gear, which can not only balance the inertia force of each planetary gear and the swing arm, but also make the planetary gear mechanism have better stability and the ability to resist impact and vibration;

[0025] 3. The foam scraper is driven to rotate by the auxiliary stirring shaft rotatably connected at both ends along the length direction. The auxiliary stirring shaft is coaxially connected to the planetary gear and rotates in the circumferential direction. The rotation speed of the foam scraper is reduced accordingly, so that the foam generated by flotation can be discharged from the discharge port in time under the push of the foam scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a high-efficiency stirring flotation machine according to an embodiment of the present application;

[0027] Figure 2 is a cross-sectional view of a flotation machine with high efficiency stirring according to an embodiment of the present application;

[0028] Figure 3 It is a structural schematic diagram of a protruding driving device of a flotation machine with high efficiency stirring according to an embodiment of the present application;

[0029] Figure 4 It is a cross-sectional view of a protruding foam scraper of a high-efficiency stirring flotation machine according to an embodiment of the present application.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. slurry barrel; 11. feed inlet; 12. discharge outlet; 13. discharge outlet; 14. box cover; 2. main stirring assembly; 21. rotating shaft; 211. air duct; 22. impeller; 23. baffle; 3. auxiliary stirring assembly; 31. auxiliary stirring shaft; 32. stirring blades; 321. through hole; 4. driving device; 41. driving motor; 42. planetary gear mechanism; 421. planetary gear; 422. sun gear; 423. passive ring gear; 5. foam scraper. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0034] The present application embodiment discloses a high-efficiency flotation machine. Figure 1A high-efficiency flotation machine includes a slurry barrel 1, a main stirring assembly 2, an auxiliary stirring assembly 3 and a driving device 4. The slurry barrel 1 is cylindrical. The axis of the slurry barrel 1 is arranged perpendicular to the ground, and the upper end of the slurry barrel 1 is arranged with an opening. A discharge port 12 is provided on the circumference of the slurry barrel 1 at a position far from the ground. The height of the discharge port 12 from the ground is higher than the horizontal height of the slurry in the slurry barrel 1, so that the foam generated during the stirring process can overflow from the discharge port 12. A feed port 11 is provided on the upper side of the slurry barrel 1. The horizontal height of the feed port 11 is higher than the horizontal height of the discharge port 12. The slurry enters the slurry barrel 1 through the feed port 11 for stirring. A discharge port 13 is provided at the lower end of the slurry barrel 1. The discharge port 13 is arranged away from the axis. After flotation is completed, the slurry is discharged from the discharge port 13.

[0035] refer to Figure 1 The main stirring assembly 2 includes a rotating shaft 21 and an impeller 22 which are coaxially arranged. The rotating shaft 21 is arranged to coincide with the axis of the slurry barrel 1. The rotating shaft 21 is fixedly connected to the impeller 22 at one end close to the ground. The rotating shaft 21 and the impeller 22 rotate synchronously. The impeller 22 is horizontally arranged. The impeller 22 is close to the bottom surface of the inner wall of the slurry barrel 1. The impeller 22 can stir the slurry at the bottom of the slurry barrel 1 upwards, so that the slurry in the slurry barrel 1 is fully stirred.

[0036] A mounting bracket is fixedly connected to the upper side of the open end of the slurry barrel 1, and the mounting bracket is arranged horizontally. A transmission box is fixedly connected to the side of the mounting bracket away from the slurry barrel 1, and a cavity is opened in the transmission box. The driving motor 41 is installed in the cavity of the transmission box. The transmission box completely wraps the driving device 4 to prevent the material in the slurry barrel 1 from splashing into the driving device 4 during the stirring process during the operation, thereby causing wear during the operation and affecting the service life of the driving device 4. The driving device 4 includes a planetary gear mechanism 42 and a driving motor 41. The planetary gear mechanism 42 includes a sun gear 422, two planetary gears 421 and a passive gear ring 423. The sun gear 422 is coaxially fixed to the rotating shaft 21, and the sun gear 422 and the rotating shaft 21 rotate synchronously. The passive gear ring 423 is sleeved outside the sun gear 422, and the passive gear ring 423 is coaxially arranged with the sun gear 422. The two planetary gears 421 are installed between the passive gear ring 423 and the sun gear 422. The two planetary gears 421 are arranged opposite to each other through the axis of the sun gear 422. The planetary gears 421 mesh with the inner side of the passive gear ring 423 and the outer side of the sun gear 422 at the same time, so that the planetary gears 421 can be evenly distributed on both sides of the sun gear 422 relative to the planetary gears 421 along the position of the sun gear 422, balancing the inertial force of each planetary gear 421 and the swing arm, and making the planetary gear mechanism 42 have better stability and the ability to resist impact and vibration. The output end of the driving motor 41 is fixedly connected to the sun gear 422 coaxially, and the driving motor 41 drives the sun gear 422 to rotate around its own axis. When the sun gear 422 drives the meshing planetary gears 421 to rotate, it also rotates in the circumferential direction. The driving device 4 is provided with a baffle 23 near the connecting member, and the baffle 23 isolates the driving device 4 from the slurry barrel 1. By adopting the above technical solution, the baffle 23 isolates the driving device 4 from the slurry barrel 1, preventing the material in the slurry barrel 1 from splashing into the planetary gear mechanism 42 during operation and causing gear wear during operation.

[0037] refer to Figure 2-4The auxiliary stirring assembly 3 includes two groups of auxiliary stirring shafts 31, and the auxiliary stirring shafts 31 correspond to the planetary gears 421 one by one. The auxiliary stirring shafts 31 are coaxially fixed to one end of the planetary gears 421 close to the ground, and the auxiliary stirring shafts 31 rotate synchronously with the planetary gears 421. The auxiliary stirring assembly 3 stirs and foams the slurry at the edge of the slurry barrel 1, so that the coverage area of ​​the stirring device is wider, the foaming area is larger, and the flotation efficiency of the ore is improved. A plurality of stirring blades 32 are fixed to the circumferential surface of each auxiliary stirring shaft 31, and each group of stirring blades 32 is arranged in an array along the length direction of the auxiliary stirring shaft 31, and two adjacent groups of stirring blades 32 are arranged in an alternating manner. Each group of stirring blades 32 is arranged in an array along the circumferential direction of the stirring shaft, and the plurality of stirring blades 32 arranged in the array increase the contact area between the auxiliary stirring device and the slurry, thereby improving the stirring efficiency of the auxiliary stirring device. The stirring blade 32 is in the shape of a rectangular thin plate. The stirring blade 32 is fixed to the circumferential surface of the stirring shaft along one side of the width direction. The stirring blade 32 is arranged perpendicular to the axis of the auxiliary stirring shaft 31. A plurality of through holes 321 are opened on the surface of the stirring blade 32. During the stirring process, the stirring blade 32 rotates with the auxiliary stirring shaft 31, and the slurry flows through the through holes 321 to generate a large number of bubbles, thereby improving the flotation efficiency.

[0038] refer to Figure 4 The rotating shaft 21 is sleeved with a foam scraper 5, which is rectangular in shape. Both ends of the foam scraper 5 along the length direction abut against the inner wall of the slurry barrel 1, and the length direction of the foam scraper 5 is perpendicular to the axis of the rotating shaft 21. The foam scraper 5 is rotatably connected to the auxiliary stirring shaft 31 near both ends along the length direction, and the auxiliary stirring shaft 31 drives the foam scraper 5 to rotate. The foam scraper 5 rotates in the circumferential direction driven by the auxiliary stirring shaft 31, so that the foam generated by flotation can be discharged from the discharge port 12 in time under the push of the foam scraper 5. The foam scraper 5 is tilted in the direction of rotation, and the inclined surface of the inclined foam scraper 5 can better abut against the foam when it rotates, so that the foam can be pushed out more efficiently.

[0039] The implementation principle of a high-efficiency flotation machine in the embodiment of the present application is as follows: the ore pulp to be floated is introduced into the slurry barrel 1, and the active stirring component and the auxiliary stirring component 3 rotate simultaneously under the drive of the driving device 4, and the auxiliary stirring component 3 rotates along the circumferential direction of the main stirring component 2 while rotating to stir, and the auxiliary stirring component 3 is close to the inner wall of the slurry barrel 1, and stirs the ore pulp close to the inner wall of the slurry barrel 1. At the same time, during the stirring process, external air enters the ore pulp from the air channel 211 opened in the rotating shaft 21, so that a large amount of foam is generated in the ore pulp during the stirring process, and the metal to be floated in the ore pulp is attached to the foam, and the foam overflows from the discharge port 12 to complete the flotation.

[0040] The present application has the function of more efficiently stirring and flotating the ore pulp.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flotation machine with high efficiency stirring, characterized by: The invention comprises a slurry support barrel (1), a main stirring assembly (2), an auxiliary stirring assembly (3) and a driving device (4); the upper end of the slurry support barrel (1) is open, and a discharge port (12) is provided at an upper position of the circumference of the slurry support barrel (1); the main stirring assembly (2) is coaxially arranged in the slurry support barrel (1), and the main stirring assembly comprises a rotating shaft (21) and an impeller (22); the rotating shaft (21) is rotatably arranged along the axis direction of the slurry support barrel (1), and the impeller (22) is arranged at a position close to the rotating shaft (21). At one end of the bottom of the slurry barrel (1), the rotating shaft (21) rotates synchronously with the impeller (22); the auxiliary stirring assembly (3) comprises a plurality of auxiliary stirring shafts (31), a plurality of stirring blades (32) are arranged on the auxiliary stirring shafts (31) along the axial direction, and the plurality of auxiliary stirring shafts (31) are arranged in the circumferential direction of the slurry barrel (1); the driving device (4) is arranged above the slurry barrel (1), and the driving device (4) simultaneously drives the main stirring assembly (2) and the auxiliary stirring assembly (3) to rotate.

2. A flotation machine with high efficiency stirring according to claim 1, characterized in that: The driving device (4) comprises a planetary gear mechanism (42) and a driving motor (41); the planetary gear mechanism (42) comprises a sun gear (422), a planetary wheel (421) and a passive ring gear (423); the driving motor (41) drives the sun gear (422) to rotate; the sun gear (422) is respectively connected to the output end rotating shaft (21) of the driving motor (41); and the planetary wheel (421) is connected to the auxiliary stirring shaft (31).

3. A flotation machine with high efficiency stirring according to claim 1, characterized in that: A baffle (23) is provided on one side of the driving device (4) close to the connecting piece, and the baffle (23) isolates the driving device (4) from the slurry barrel (1).

4. A flotation machine with high efficiency stirring according to claim 1, characterized in that: The stirring blade (32) is provided with a plurality of through holes (321).

5. The high-efficiency stirring flotation machine according to claim 1, characterized in that: The stirring blades (32) are arranged in a plurality of arrays.

6. A flotation machine with high efficiency stirring according to claim 1, characterized in that: The auxiliary stirring shaft (31) is provided with a foam scraper (5), the foam scraper (5) is flush with the discharge port (12), and the foam scraper (5) rotates around the axis of the auxiliary stirring shaft (31).

7. A flotation machine with high efficiency stirring according to claim 6, characterized in that: The foam scraper (5) is arranged obliquely on one side close to the rotation direction.

8. A flotation machine with high efficiency stirring according to claim 7, characterized in that: The foam scraper (5) is rotatably connected to the auxiliary stirring shaft (31) at positions near both ends along the length direction, and the auxiliary stirring shaft (31) drives the foam scraper (5) to rotate.

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