Flotation equipment

Abstract

The flotation equipment comprises a tank body, a mineralization device and a plurality of turbulent flow reinforcing plates, the mineralization device comprises a rotor assembly and a mineralization tank, the mineralization tank is arranged in the tank body, a mechanical stirring cavity is formed in the mineralization tank, a slurry inlet is formed in the bottom of the mineralization tank, and a slurry outlet is formed in the top of the mineralization tank; the rotor assembly comprises a rotating shaft and a rotor, the lower end of the rotating shaft extends into the mechanical stirring cavity, the rotor is located in the mechanical stirring cavity and installed at the lower end of the rotating shaft, and the turbulence reinforcing plate is arranged in the mechanical stirring cavity and connected with the inner wall of the mineralization tank, extends in the radial direction of the rotor, surrounds the rotor and is spaced from the rotor. And the turbulent flow reinforcing plate is provided with a hollow hole which is through along the thickness direction of the turbulent flow reinforcing plate. The flotation equipment is reasonable in structural design and good in mineralization and flotation effects.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flotation, specifically, a kind of flotation equipment. BACKGROUND

[0002] Flotation is widely used beneficiation method.In the flotation using flotation equipment, ore pulp is introduced into flotation tank and mechanical stirring or aeration is carried out to mineralize, after mineralization, target particles selectively adhere to bubble to form mineralized bubble, mineralized bubble floats, other particles not adhered to bubble are discharged from the bottom of flotation tank with ore pulp, so as to realize the purpose of separating minerals.

[0003] In the related art, mechanical stirring cavity is provided in the flotation equipment, ore pulp and air are introduced into mechanical stirring cavity from outside, and mineralization is carried out under the action of mechanical stirring.However, the structure design of the flotation equipment in the related art is unreasonable, and the mineralization and flotation effect is poor. UTILITY MODEL CONTENT

[0004] The utility model aims to solve at least one of the technical problems in the related art to some extent.

[0005] Therefore, the utility model embodiment provides a kind of flotation equipment, and the structure design of the flotation equipment is reasonable, and the mineralization and flotation effect is good.

[0006] The flotation equipment of the utility model embodiment comprises: mineralization tank, the mineralization tank has mechanical stirring cavity, the bottom of the mineralization tank is provided with the inlet for supplying ore pulp into the mechanical stirring cavity, the top of the mineralization tank is provided with the outlet for discharging ore pulp, in the longitudinal section of the mineralization tank, the peripheral wall of the mineralization tank comprises a plurality of line segments connected in sequence, and the inclination angles of adjacent line segments are different from each other;Rotor assembly, the rotor assembly comprises shaft and rotor, the lower end of the shaft extends into the mechanical stirring cavity, the rotor is located in the mechanical stirring cavity and is installed on the lower end of the shaft to be driven to rotate by the shaft to carry out mechanical stirring in the mechanical stirring cavity.

[0007] According to the flotation equipment, when mineralization is performed, the ore pulp is introduced into the mineralization tank through the slurry inlet in the downward direction, the rotor rotates and stirs in the mechanical stirring cavity, air is dispersed to form small bubbles, particles are attached to the bubbles to form mineralized bubbles, and the ore pulp containing the mineralized bubbles and other particles can flow out of the slurry outlet of the mineralization tank. Since the turbulence strengthening plates extend along the radial direction of the rotor, the plurality of turbulence strengthening plates are arranged around the rotor and are spaced apart from the rotor, so that the ore pulp flowing in the circumferential direction in the mechanical stirring cavity is sequentially stopped and collided by the plurality of turbulence strengthening plates, and the turbulence effect of the ore pulp in the mechanical stirring cavity is enhanced. In addition, since the turbulence strengthening plates are provided with the hollow holes penetrating in the thickness direction thereof, it is easier to generate small bubbles when the impeller rotates, so that the circulating mixing effect of the ore pulp and the bubbles is better, and the flotation of the fine-grained minerals is more favorable. Therefore, the mineralization and flotation effect of the flotation equipment is better.

[0008] In some embodiments, the hollow holes include a plurality of strip-shaped holes or a plurality of circular holes arranged in a discrete manner.

[0009] In some embodiments, the flotation equipment further includes an aeration device, the tank body has an upper region and a column selection region, the upper region is located above the mineralization tank, the column selection region includes a lower region and a communication region, the lower region is located below the mineralization tank, the communication region is located between the outer peripheral wall of the mineralization tank and the inner peripheral wall of the tank body, the aeration device is in communication with the lower region and is used for filling the lower region with gas to perform column selection on the ore pulp entering the column selection region from the mechanical stirring cavity.

[0010] In some embodiments, a flow guide plate is arranged in the communication region, an upper surface of the flow guide plate is flush with the top surface of the mineralization tank, and a lower surface of the flow guide plate is lower than the bottom surface of the mineralization tank.

[0011] In some embodiments, a flow guide plate is arranged in the communication region, the flow guide plate includes a plurality of first flow guide plates and a plurality of second flow guide plates, the first flow guide plates are connected to the outer wall of the mineralization tank, the second flow guide plates are connected to the inner wall of the tank body, and the first flow guide plates and the second flow guide plates are alternately and spaced arranged in the circumferential direction of the mineralization tank.

[0012] In some embodiments, an upper turbulence suppression grid is arranged in the tank body, and the upper turbulence suppression grid is located above the mineralization tank and is spaced apart from the mineralization tank by a preset distance.

[0013] In some embodiments, a lower turbulence suppression grid is arranged in the tank body, and the lower turbulence suppression grid is located below the mineralization tank and is spaced apart from the mineralization tank by a preset distance.

[0014] In some embodiments, the preset distance is M, and the inner diameter of the tank is N, wherein 0.01N≤M≤0.1N.

[0015] In some embodiments, a turbulence suppression grid is arranged in the tank, the turbulence suppression grid is arranged in the upper region and adjacent to the mineralization tank arrangement and / or the turbulence suppression grid is arranged in the lower region and adjacent to the mineralization tank arrangement, and the position of the turbulence suppression grid in the up-down direction is adjustable.

[0016] In some embodiments, the rotor is an impeller, the impeller comprises a hub, a disc, a top plate, a bottom plate and blades, the blades comprise upper blades and lower blades, the hub is mounted at the lower end of the rotating shaft, the disc, the top plate and the bottom plate are mounted on the hub and the disc is located between the top plate and the bottom plate, the upper blades and the lower blades are both multiple, the multiple upper blades are arranged between the upper surface of the disc and the top plate and are arranged in a circumferential direction of the disc, the multiple lower blades are arranged between the lower surface of the disc and the disc and are arranged in a circumferential direction of the disc, and the upper blades and the lower blades are one-to-one corresponding or staggered in the circumferential direction of the disc. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of a flotation device according to an embodiment of the present application.

[0018] Figure 2 is a schematic view of a mineralization device of a flotation device according to an embodiment of the present application.

[0019] Figure 3 is a schematic view of a mineralization device of a flotation device according to an embodiment of the present application.

[0020] Figure 4 is a partial sectional view of a mineralization device of a flotation device according to an embodiment of the present application.

[0021] Figure 5 is a schematic view of an impeller of a flotation device according to an embodiment of the present application.

[0022] Figure 6 is a partial sectional view of an impeller of a flotation device according to an embodiment of the present application.

[0023] Figure 7 is a schematic view of a turbulence enhancement plate of a flotation device according to an embodiment of the present application.

[0024] REFERENCE NUMERALS:

[0025] 1, mineralization tank; 11, pulp inlet; 12, pulp outlet; 13, mechanical stirring cavity; 14, turbulence enhancement plate; 141, hollow hole; 15, flow guide plate;

[0026] 2. Rotor assembly; 21. Shaft; 211. Air supply passage; 22. Rotor; 221. Hub; 222. Disc; 223. Blades; 2231. Upper blade; 2232. Lower blade; 224. Top plate; 225. Bottom plate;

[0027] 3. Turbulence suppression grid; 31. Upper turbulence suppression grid;

[0028] 4. Tank body; 41. Lower area; 42. Upper area; 43. Connecting area; 44. Discharge port;

[0029] 5. Inflation device. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] The following is a reference appendix. Figures 1 to 7 This invention describes a flotation device according to an embodiment of the present invention.

[0032] like Figures 1 to 4 and Figure 7 As shown, the flotation equipment of this utility model embodiment includes: a tank 4, a mineralization device and multiple turbulence enhancement plates 14.

[0033] The mineralization device includes a rotor assembly 2 and a mineralization tank 1. The mineralization tank 1 is located inside the tank body 4 and has a mechanical stirring chamber 13. The mechanical stirring chamber 13 is used for mineralization, which is referred to as mechanical stirring mineralization. Under the mechanical stirring action of the rotor assembly 2, the target particles in the slurry and the air supplied into the mechanical stirring chamber 13 cause the target particles to adhere to the air bubbles to form mineralization bubbles, thereby realizing mechanical stirring flotation.

[0034] The bottom of the mineralization tank 1 is provided with an inlet 11 for supplying slurry into the mechanical stirring chamber 13, and the top of the mineralization tank 1 is provided with an outlet 12 for discharging slurry. It is understood that the slurry coming out of the mechanical stirring chamber 13 includes target particles attached to the air bubbles and other particles (target particles not attached to the air bubbles or other non-target particles).

[0035] The rotor assembly 2 includes a shaft 21 and a rotor 22. The lower end of the shaft 21 extends into the mechanical stirring chamber 13. The rotor 22 is located inside the mechanical stirring chamber 13 and is mounted on the lower end of the shaft 21 so that it is driven to rotate by the shaft 21 to perform mechanical stirring and mineralization within the mechanical stirring chamber 13. The air used for mineralization can preferably be supplied into the mechanical stirring chamber 13 through the shaft 21. Alternatively, a separate air supply line can be provided to supply air into the mechanical stirring chamber 13.

[0036] The turbulence intensifier plate 14 is arranged in the mechanical stirring cavity 13 and is in contact with the inner wall of the mineralization tank 1, the turbulence intensifier plate 14 extends along the radial direction of the rotor 22, surrounds the rotor 22 and is spaced apart from the rotor 22, and the turbulence intensifier plate 14 is provided with a hollow hole 141 penetrating in the thickness direction thereof.

[0037] According to the flotation equipment provided in the embodiment of the present application, when mineralization is performed, the slurry is introduced into the mineralization tank 1 through the slurry inlet 11 in the direction from bottom to top, the rotor 22 rotates and stirs in the mechanical stirring cavity 13, air is dispersed to form small bubbles, particles are attached to the bubbles to form mineralized bubbles, the slurry containing the mineralized bubbles and other particles can flow out of the slurry outlet 12 of the mineralization tank 1, and the mineralized bubbles flow upward to be collected. Since the turbulence intensifier plate 14 extends along the radial direction of the rotor 22, and a plurality of turbulence intensifier plates 14 are arranged around the rotor 22 and are spaced apart from the rotor 22, the slurry flowing in the circumferential direction in the mechanical stirring cavity 13 is sequentially stopped and collided by the plurality of turbulence intensifier plates 14, thereby enhancing the turbulence effect of the slurry in the mechanical stirring cavity 13. Moreover, since the turbulence intensifier plate 14 is provided with the hollow hole 141 penetrating in the thickness direction thereof, it is easier to generate small bubbles when the impeller rotates, the circulating mixing effect of the slurry and the bubbles is better, and the flotation of the fine-grained minerals is more favorable. Therefore, the mineralization and flotation effects of the flotation equipment provided in the embodiment of the present application are better.

[0038] It can be understood that mineralization refers to the adhesion process of target particles and bubbles, the mineralized slurry includes mineralized bubbles (the mineralized bubbles can be referred to as mineralized bubbles after aggregation, and the mineralized bubbles and the mineralized bubbles can be used interchangeably in the following description) and other particles not attached to the bubbles, the other particles not attached to the bubbles include target particles and non-target particles, and the non-target particles can be valuable mineral particles or worthless tailing particles.

[0039] Optionally, as shown in Figure 7 The hollow hole 141 includes a plurality of strip-shaped holes arranged at intervals or a plurality of circular holes distributed discretely. For example, the hollow hole 141 is a strip-shaped hole, and the strip-shaped hole extends obliquely, horizontally or vertically. Alternatively, the hollow hole 141 is a circular hole, and the plurality of circular holes are discretely arranged.

[0040] Since the hollow hole 141 is a plurality of holes, it is easier to generate more small bubbles when the impeller rotates, the circulating mixing effect of the slurry and the bubbles is better, and the flotation of the fine-grained minerals is more favorable.

[0041] The opening size of the hollow hole 141 can be designed according to the properties of the minerals, and the embodiment of the present application does not limit this.

[0042] Optionally, as shown in Figure 1 and Figure 2As shown, the rotating shaft 21 has a gas supply passage 211 for supplying mechanical agitation mineralization gas into the mechanical agitation chamber 13. It can be understood that the gas in the mechanical agitation chamber 13 is supplied through the gas supply passage 211 in the rotating shaft 21, so that the rotating shaft 21 can not only drive the rotor 22 to rotate, but also provide the mechanical agitation mineralization gas for the mechanical agitation chamber 13, and the structure is compact, and the number of parts used is reduced.

[0043] In some embodiments, as Figure 1 As shown, the flotation device further comprises an aeration device 5, the tank body 4 has an upper region 42 and a column selection region, the upper region 42 is located above the mineralization tank 1, the column selection region includes a lower region 41 and a communication region 43, the lower region 41 is located below the mineralization tank 1, the communication region 43 is located between the outer peripheral wall of the mineralization tank 1 and the inner peripheral wall of the tank body 4, the aeration device 5 is in communication with the lower region 41, and is used for filling gas into the lower region 41 to perform column selection on the ore pulp entering the column selection region from the mechanical agitation chamber 13.

[0044] According to the flotation device of the embodiment of the present application, the mechanical agitation mineralization and column selection can be respectively performed by the mechanical agitation chamber 13 in the mineralization tank 1 and the lower region 41 in the tank body 4 and located below the mechanical agitation chamber 13, so that the mineralization effect of the flotation device can be further improved, and the combination of mechanical agitation flotation and column selection improves the mineralization and flotation effect and improves the applicability to the ore.

[0045] It can be understood that the mineralization foam is gathered to the upper region 42, and the lower region 41 is used for column selection. The mineralization bubbles in the ore pulp discharged from the mechanical agitation chamber 13 enter the upper region 42 upward, the ore pulp containing other particles enters the lower region 41 through the communication region 43, the aeration device 5 is in communication with the lower region 41 and is used for filling gas into the lower region 41 to perform column selection on the ore pulp entering the lower region 41, and the driving device (not shown) is arranged above the tank body 4 and connected with the rotating shaft 21 of the mineralization device to drive the rotating shaft 21 to rotate.

[0046] In other examples, the flotation device of the embodiment of the present application can not include the aeration device 5, so that the flotation device only performs flotation by mechanical agitation.

[0047] For example, as Figure 1 As shown, the bottom of the tank body 4 is provided with a discharge port 44, and the particles not attached to the bubbles after column selection (which can also be referred to as tailings) fall to the bottom of the tank body 4 under the action of gravity and are discharged through the discharge port 44.

[0048] As Figure 1 As shown, the bottom of the tank body 4 can be in any shape such as a conical shape (funnel shape), a pyramid shape or a wedge shape, to guide the tailings, so as to improve the efficiency of the tailings discharged from the discharge port 44.

[0049] Optionally, the communication region 43 is provided with a flow guide plate 15. Due to the flow guide plate 15 provided in the communication region 43, the flow guide plate 15 can guide the particles not attached to the bubbles downward into the lower region 41, the flow guide plate 15 can guide the ore pulp containing the particles not attached to the bubbles downward into the lower region 41, and the flow guide plate 15 can also guide the mineralized bubbles after column selection upward into the upper region 42. The flow guide plate 15 can reduce the turbulence intensity of the communication region 43, and is conducive to improving the mineralization and flotation effect of the flotation device.

[0050] For example, the flow guide plate 15 is a plurality of flow guide plates 15, and the plurality of flow guide plates 15 are arranged in a circumferential direction of the mineralization tank 1.

[0051] Optionally, the upper surface of the flow guide plate 15 is flush with the top surface of the mineralization tank 1, and the lower surface of the flow guide plate 15 is lower than the bottom surface of the mineralization tank 1. Due to the upper surface of the flow guide plate 15 being flush with the top surface of the mineralization tank 1, the flow guide plate 15 can avoid interfering with the turbulent flow field of the ore pulp in the mineralization tank 1. Due to the lower surface of the flow guide plate 15 being lower than the bottom surface of the mineralization tank 1, the flow guide plate 15 can be as close as possible to the lower region 41 downward, so as to guide the mineralized bubbles after column selection upward into the upper region 42, and guide the ore pulp containing the particles not attached to the bubbles downward into the lower region 41, and improve the flow guiding effect of the flow guide plate 15.

[0052] In an example, the flow guide plate 15 includes a plurality of first flow guide plates and a plurality of second flow guide plates, the first flow guide plates are connected to the outer wall of the mineralization tank 1, the second flow guide plates are connected to the inner wall of the tank body 4, and the first flow guide plates and the second flow guide plates are alternately and spaced arranged in the circumferential direction of the mineralization tank 1. In this way, the turbulence degree of the ore pulp and the mineralized bubbles in the communication region 43 can be further reduced, the trend of the ore pulp flow tends to be more chaotic can be avoided, and the mineralization and flotation effect of the flotation device can be improved.

[0053] Optionally, as shown in Figure 1 The tank body 4 is provided with an upper turbulence suppression grid 31, and the upper turbulence suppression grid 31 is located above the mineralization tank 1 and spaced apart from the mineralization tank 1 by a predetermined distance. In this way, the turbulence degree of the ore pulp at the position above the mineralization tank 1 can be reduced, so that the mineralized bubbles can flow upward into the upper region 42 smoothly, the trend of the ore pulp flow tends to be more chaotic at the position above the mineralization tank 1 can be avoided, and the mineralization and flotation effect of the flotation device can be improved.

[0054] Optionally, a lower turbulence suppression grid is arranged in the tank body 4, and the lower turbulence suppression grid is located below the mineralization tank 1 and spaced apart from the mineralization tank 1 by a preset distance. In this way, the turbulence degree of the ore pulp at the preset position below the mineralization tank 1 can be reduced, so that the ore pulp that is not attached to the bubbles can flow smoothly into the lower area 41, thereby avoiding the trend that the ore pulp at the preset position below the mineralization tank 1 tends to flow more chaotically, and the mineralization and flotation effect of the flotation device is improved.

[0055] Optionally, as shown in Figure 1 the preset distance is M, and the inner diameter of the tank body 4 is N, where 0.01N≤M≤0.1N. That is, the preset distance M is 1%-10% of the inner diameter N of the tank body 4. For example, M is equal to 0.01N, 0.05N, or 0.1N.

[0056] The inventor of the utility model embodiment found through research and verified through experiments that when the upper turbulence suppression grid 31 and the lower turbulence suppression grid are arranged at the above-mentioned distance, the turbulence degree at the corresponding position can be reduced, thereby improving the overall mineralization and flotation effect of the flotation device.

[0057] In some embodiments, as shown in Figure 1 the tank body 4 is provided with a turbulence suppression grid 3, and the turbulence suppression grid 3 is arranged in the upper area 42 and adjacent to the mineralization tank 1, that is, the turbulence suppression grid 3 is arranged at a lower position in the upper area 42. The turbulence suppression grid 3 can adjust the airflow speed above the upper area 42, offset the turbulence generated by the scraper stirring, and improve the stratification problem of bubbles and ore pulp.

[0058] In other embodiments, the turbulence suppression grid 3 is arranged in the lower area 41 and adjacent to the mineralization tank 1. It can be understood that the turbulence suppression grid 3 is arranged at an upper position in the lower area 41 to reduce the turbulence intensity in the communication area 43 above the lower area 41, thereby improving the flotation effect and efficiency of the flotation device.

[0059] In other examples, the position of the turbulence suppression grid 3 in the up-down direction is adjustable, so that the flotation device can adjust the turbulence suppression grid 3 to an appropriate position according to different flotation minerals or flotation effects, thereby expanding the application range of the flotation device and improving the turbulence suppression effect.

[0060] In some embodiments, as shown in Figures 4 to 6 the rotor 22 is in the form of an impeller, and the impeller includes a hub 221, a disc 222, a top plate 224, a bottom plate 225, and blades 223. The blades 223 include upper blades 2231 and lower blades 2232.

[0061] The hub 221 is installed at the lower end of the rotating shaft 21, the wheel disc 222, the top plate 224 and the bottom plate 225 are installed on the hub 221 and the wheel disc 222 is located between the top plate 224 and the bottom plate 225. The upper blades 2231 and the lower blades 2232 are both multiple, the multiple upper blades 2231 are arranged between the upper surface of the wheel disc 222 and the top plate 224 and are spaced along the circumference of the wheel disc 222. The multiple lower blades 2232 are arranged between the lower surface of the wheel disc 222 and the wheel disc 222 and are spaced along the circumference of the wheel disc 222, and the upper blades 2231 and the lower blades 2232 are one-to-one corresponding or staggered along the circumference of the wheel disc 222.

[0062] Preferably, the upper blades 2231 and the lower blades 2232 are staggered, that is, the upper blades 2231 and the lower blades 2232 are not aligned with each other along the axial direction of the impeller.

[0063] When the impeller rotates, the upper blades 2231 on the upper side of the wheel disc 222 and the lower blades 2232 on the lower side of the wheel disc 222 can rotate at the same time, which can enhance the pulp suction capacity (the ability to suck the ore pulp from the pulp inlet 11 into the mechanical stirring chamber 13) of the impeller, on the other hand, can enhance the strength of the internal ore pulp circulation, improve the mineralization effect of the ore pulp, and enhance the selectivity in the flotation process.

[0064] For example, the upper blades 2231 and the lower blades 2232 are distributed in a radial and radiated manner, and the number of the upper blades 2231 and the lower blades 2232 is between 4-16, and is uniformly arranged. It should be noted that the number of the upper blades 2231 and the lower blades 2232 can be equal or not equal, and the embodiments of the present application do not limit this.

[0065] Since the upper blades 2231 are arranged between the upper surface of the wheel disc 222 and the top plate 224, and the lower blades 2232 are arranged between the lower surface of the wheel disc 222 and the wheel disc 222, the strength of the internal ore pulp circulation can be further enhanced, the energy utilization rate of the impeller rotation is improved, which is beneficial to enhance the capture effect of the bubbles on the target mineral, and enhance the selectivity in the flotation process.

[0066] For example, the outer contour of the top plate 224 is substantially consistent with the size of the outer contour surrounded by the multiple upper blades 2231. The outer contour of the bottom plate 225 is substantially consistent with the size of the outer contour surrounded by the multiple lower blades 2232.

[0067] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0068] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0069] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0070] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0071] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific feature, structure, material or characteristic being described with reference to the embodiment or example is included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the features of different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0072] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the changes, modifications, replacements and modifications of the above embodiments made by the person skilled in the art are within the protection scope of the present application.

Claims

1. A flotation device, characterized in that The flotation device comprises: a tank body; a mineralization device, the mineralization device comprising a rotor assembly and a mineralization tank, the mineralization tank being arranged in the tank body, the mineralization tank having a mechanical stirring cavity therein, the bottom of the mineralization tank being provided with a pulp inlet for feeding pulp into the mechanical stirring cavity, the top of the mineralization tank being provided with a pulp outlet for discharging pulp, the rotor assembly comprising a rotating shaft and a rotor, the lower end of the rotating shaft extending into the mechanical stirring cavity, the rotor being located in the mechanical stirring cavity and being mounted on the lower end of the rotating shaft to be driven to rotate by the rotating shaft to perform mechanical stirring in the mechanical stirring cavity; a plurality of turbulence enhancement plates, the turbulence enhancement plates being arranged in the mechanical stirring cavity and being in contact with the inner wall of the mineralization tank, the turbulence enhancement plates extending along the radial direction of the rotor, surrounding the rotor and being spaced apart from the rotor, the turbulence enhancement plates being provided with hollow holes penetrating through the thickness direction thereof.

2. The flotation plant according to claim 1, characterized in that, The hollow holes comprise a plurality of strip-shaped holes or a plurality of discrete circular holes.

3. The flotation plant according to claim 1, characterized in that, The flotation device further comprises an aeration device, the tank body having an upper region and a column selection region, the upper region being located above the mineralization tank, the column selection region comprising a lower region and a communication region, the lower region being located below the mineralization tank, the communication region being located between the peripheral wall of the mineralization tank and the inner peripheral wall of the tank body, the aeration device being in communication with the lower region for filling gas into the lower region to perform column selection on the pulp entering the column selection region from the mechanical stirring cavity in the column selection region.

4. The flotation plant according to claim 3, characterized in that, A flow guide plate is arranged in the communication region, the upper surface of the flow guide plate being flush with the top surface of the mineralization tank, and the lower surface of the flow guide plate being lower than the bottom surface of the mineralization tank.

5. The flotation plant according to claim 3, characterized in that, The flow guide plate comprises a plurality of first flow guide plates and a plurality of second flow guide plates, the first flow guide plates being in contact with the outer wall of the mineralization tank, and the second flow guide plates being in contact with the inner wall of the tank body, the first flow guide plates and the second flow guide plates being alternately and spacedly arranged in the circumferential direction of the mineralization tank.

6. The flotation plant according to claim 3, characterized in that, An upper turbulence suppression grid is arranged in the tank body, the upper turbulence suppression grid being located above the mineralization tank and being spaced apart from the mineralization tank by a preset distance.

7. The flotation plant according to claim 6, characterized in that, A lower turbulence suppression grid is arranged in the tank body, the lower turbulence suppression grid being located below the mineralization tank and being spaced apart from the mineralization tank by a preset distance.

8. The flotation plant according to claim 7, characterized in that The preset distance is M, and the inner diameter of the tank body is N, wherein 0.01N≤M≤0.1N.

9. The flotation plant according to claim 3, characterized in that, A turbulence suppression grid is arranged in the tank body, the turbulence suppression grid being arranged in the upper region adjacent to the mineralization tank and / or the turbulence suppression grid being arranged in the lower region adjacent to the mineralization tank, the position of the turbulence suppression grid in the up-down direction being adjustable.

10. The flotation plant according to any one of claims 1 - 9, characterized in that, The rotor is an impeller, which comprises a hub, a disc, a top plate, a bottom plate and blades, the blades comprise upper blades and lower blades, the hub is installed at the lower end of the rotating shaft, the disc, the top plate and the bottom plate are installed on the hub and the disc is located between the top plate and the bottom plate, the upper blades and the lower blades are both multiple, multiple upper blades are arranged between the upper surface of the disc and the top plate and are spaced along the circumference of the disc, multiple lower blades are arranged between the lower surface of the disc and the disc and are spaced along the circumference of the disc, the upper blades and the lower blades are one-to-one corresponding or staggered along the circumference of the disc.

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