Flotation equipment

Abstract

The utility model relates to flotation equipment. The flotation equipment comprises a tank body, a mineralization device and a spray gun, an inner cavity of the tank body comprises an upper area and a column selection area, 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, the upper area is located above the mineralization tank, the column selection area comprises a lower area and a communication area, and the lower area is located below the mineralization tank. The communicating area is located between the outer peripheral wall of the mineralization tank and the inner peripheral wall of the tank body, the rotor assembly comprises a rotating shaft and a rotor, the lower end of the rotating shaft extends into the mechanical stirring cavity, and the rotor is installed at the lower end of the rotating shaft and located in the mechanical stirring cavity; the spraying end of the spraying gun extends into the tank body and is located below the mineralization tank, and in the vertical direction, the distance between the spraying end and the bottom wall of the mineralization tank is smaller than the distance between the spraying end and the discharging opening. The flotation equipment is good in mineralization effect, and the probability that the spray gun is blocked is reduced.

Description

TECHNICAL FIELD

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

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

[0003] In the related art, in order to realize column selection of ore pulp, an annular air supply pipe is usually arranged in the flotation tank to supply mineralization gas into the flotation tank, but the annular air supply pipe has the problems of unreasonable arrangement position, low gas supply pressure and flow rate, poor stirring effect, easy plugging of air outlet hole and poor mineralization effect. SUMMARY

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

[0005] To this end, the utility model embodiment provides a flotation equipment capable of improving the mineralization effect of ore pulp.

[0006] The flotation equipment of the utility model embodiment comprises a tank body, an inner cavity of the tank body comprises an upper region and a column selection region, and a discharge port is arranged at the bottom of the tank body; a mineralization device comprises a rotor assembly and a mineralization tank, the mineralization tank is arranged in the tank body, the mineralization tank has a mechanical stirring cavity therein, an ore pulp inlet is arranged at the bottom of the mineralization tank to supply ore pulp into the mechanical stirring cavity, an ore pulp outlet is arranged at the top of the mineralization tank to discharge ore pulp, the upper region is located above the mineralization tank, the column selection region comprises 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 rotor assembly comprises a rotating shaft and a rotor, the lower end of the rotating shaft extends into the mechanical stirring cavity, and the rotor is mounted at the lower end of the rotating shaft and located in the mechanical stirring cavity; a spray gun is arranged to spray gas into the lower region to perform column selection on the ore pulp entering the lower region from the mechanical stirring cavity, the spray gun has a spray end extending into the tank body and located below the mineralization tank, and in the up-down direction, the distance between the spray end and the bottom wall of the mineralization tank is less than the distance between the spray end and the discharge port.

[0007] According to the embodiment of the utility model, when mineralization is carried out, the slurry is passed into the mineralization tank through the slurry inlet along the direction from bottom to top, the rotor rotates and stirs in the mechanical stirring chamber, air is dispersed to form tiny bubbles, mineral particles adhere to the bubbles to form mineralized bubbles, the slurry containing the mineralized bubbles and the mineral particles not adhered to the bubbles can flow out from the slurry outlet of the mineralization tank, and the mineralized bubbles flow upwards to the upper region. The slurry containing the mineral particles not adhered to the bubbles passes through the communication region downwards to the lower region, the lance can spray gas into the lower region to perform column selection on the mineral particles not adhered to the bubbles in the lower region, the mineralized bubbles generated after column selection pass through the communication region and flow upwards to the upper region, and the mineral particles not adhered to the bubbles after column selection are discharged through the discharge port at the bottom of the tank body under the action of gravity, so that the multiple flotation of the slurry is realized. Since the distance between the spray end of the lance and the bottom wall of the mineralization tank is smaller than the distance between the spray end and the discharge port, the turbulent flow of the slurry in the lower region can be strengthened, a strong turbulent flow field is formed in the lower region, the mineralization effect of the flotation equipment is improved, and the problem that the spray end of the lance is blocked by the mineral particles not adhered to the bubbles can be reduced.

[0008] In some embodiments, the lower end of the tank body has a tapered section, a cross section of the tapered section gradually decreases along a direction from top to bottom, the discharge port is arranged at a lower end of the tapered section, and the lance comprises a first lance, a spray end of the first lance is arranged above the tapered section and adjacent to the axis of the tank body.

[0009] In some embodiments, the lance comprises a plurality of second lances, the plurality of second lances are arranged at intervals along a circumferential direction of the tank body, and the spray end of the second lance is located between the spray end of the first lance and above the tapered section.

[0010] In some embodiments, the lance comprises a plurality of third lances, the plurality of third lances are arranged at intervals along a circumferential direction of the tank body, and the spray end of the third lance is arranged in the tapered section.

[0011] In some embodiments, the spray end of the second lance is open in a horizontal direction, the spray end of the third lance faces the slurry outlet, and / or the spray directions of the second lances and the third lances intersect with each other.

[0012] In some embodiments, the lance comprises an inner pipe and an outer pipe, the inner pipe is sleeved in the outer pipe, the inner pipe has a first gas flow channel, and a second gas flow channel is defined between the inner pipe and the outer pipe; or a gas distribution head is mounted on the spray end of the lance, the gas distribution head is provided with a plurality of gas distribution holes spaced apart from each other, and the plurality of gas distribution holes are in communication with the spray end.

[0013] In some embodiments, the tank body is provided with an upper turbulence suppression grid, which is located above the mineralization tank and spaced apart from the mineralization tank by a preset distance, and is adjacent to the communication area; and / or the tank body is provided with a lower turbulence suppression grid, which is located below the mineralization tank and spaced apart from the mineralization tank by a preset distance, and is adjacent to the communication area.

[0014] In some embodiments, the position of at least one of the upper turbulence suppression grid and the lower turbulence suppression grid in the up-down direction is adjustable.

[0015] In some embodiments, 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 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, multiple upper blades are arranged between the upper surface of the disc and the top plate and are spaced apart along the circumference of the disc, multiple lower blades are arranged between the lower surface of the disc and the disc and are spaced apart 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. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of a flotation device according to an embodiment of the present application.

[0017] Figure 2 is a partial sectional view of a mineralization device of a flotation device according to an embodiment of the present application.

[0018] Figure 3 is a schematic diagram of a rotor of a flotation device according to an embodiment of the present application.

[0019] Figure 4 is a partial sectional view of a rotor of a flotation device according to an embodiment of the present application.

[0020] REFERENCE NUMERALS:

[0021] 1, mineralization tank; 11, pulp inlet; 12, pulp outlet; 13, mechanical stirring cavity; 14, turbulence enhancement plate;

[0022] 2, rotor assembly; 21, rotating shaft; 211, air supply channel; 22, rotor; 221, hub; 222, disc; 223, blade; 2231, upper blade; 2232, lower blade; 224, top plate; 225, bottom plate;

[0023] 3, upper turbulence suppression grid;

[0024] 4. Tank body; 41. Lower region; 42. Upper region; 43. Connecting region; 44. Discharge port; 45. Conical section;

[0025] 5. Spray gun; 51. First spray gun; 52. Second spray gun; 53. Third spray gun;

[0026] 6. Feed pipe. Detailed Implementation

[0027] 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.

[0028] The following is a reference appendix. Figures 1 to 4 This invention describes a flotation device according to an embodiment of the present invention.

[0029] like Figure 1 and Figure 2 As shown, the flotation equipment of this utility model embodiment includes: a tank 4, a mineralization device, and a spray gun 5. The bottom of the tank 4 is provided with a discharge port 44, and the mineralization device includes a rotor assembly 2 and a mineralization tank 1.

[0030] The inner cavity of the tank body 4 includes an upper region 42 and a column separation region. The mineralization tank 1 is located inside the tank body 4. The upper region 42 is located above the mineralization tank 1. The column separation region includes a lower region 41 and a connecting region 43. The lower region 41 is located below the mineralization tank 1, and the connecting region 43 is located between the outer peripheral wall of the mineralization tank 1 and the inner peripheral wall of the tank body 4.

[0031] The mineralization tank 1 has a mechanical stirring chamber 13, which is used for mineralization. This is called 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 and form mineralization bubbles, thereby realizing mechanical stirring flotation.

[0032] 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).

[0033] The rotor assembly 2 comprises a rotating shaft 21 and a rotor 22, the lower end of the rotating shaft 21 extends into the mechanical stirring cavity 13, and the rotor 22 is installed at the lower end of the rotating shaft 21 and located in the mechanical stirring cavity 13. The rotor 22 is driven to rotate by the rotating shaft 21 to mechanically stir the mineralization in the mechanical stirring cavity 13. The air used for mineralization can be supplied into the mechanical stirring cavity 13 through the rotating shaft 21, and of course, a separate air supply pipeline can also be arranged to supply air into the mechanical stirring cavity 13.

[0034] The spray gun 5 is used to spray gas into the lower region 41 to perform column selection on the ore pulp entering the lower region 41 from the mechanical stirring cavity 13. The spray gun 5 extends into the tank body 4 below the mineralization tank 1, and the distance between the spray end and the bottom wall of the mineralization tank 1 is less than the distance between the spray end and the discharge port 44 in the up-down direction.

[0035] According to the flotation equipment of the embodiment of the utility model, when mineralization is performed, the ore pulp is passed into the mineralization tank 1 through the ore pulp inlet 11 in the direction from bottom to top, the rotor 22 rotates and stirs in the mechanical stirring cavity 13, the air is dispersed to form small bubbles, the mineral particles adhere to the bubbles to form mineralized bubbles, the ore pulp containing the mineralized bubbles and the mineral particles not adhered to the bubbles can flow out of the ore pulp outlet 12 of the mineralization tank 1, and the mineralized bubbles flow upward to the upper region 42. The ore pulp containing the mineral particles not adhered to the bubbles passes through the communication region 43 downward into the lower region 41, the spray gun 5 can spray gas into the lower region 41 to perform column selection on the mineral particles not adhered to the bubbles in the lower region 41, the mineralized bubbles generated after column selection pass through the communication region 43 and flow upward to the upper region 42, and the mineral particles not adhered to the bubbles after column selection are discharged through the discharge port 44 at the bottom of the tank body 4 under the action of gravity, so as to realize multiple flotation of the ore pulp. Since the distance between the spray end of the spray gun 5 and the bottom wall of the mineralization tank 1 is less than the distance between the spray end and the discharge port 44, the turbulence of the ore pulp in the lower region 41 can be strengthened, a strong turbulent flow field is formed in the lower region 41, the mineralization effect of the flotation equipment is improved, and the problem that the spray end of the spray gun 5 is blocked by the mineral particles not adhered to the bubbles can be reduced.

[0036] Compared with the air supply mode of the gas distribution pipe, the spray gun 5 can improve the flow rate of the gas, generate stronger turbulence, and is not easy to be blocked. Moreover, since the distance between the spray end of the spray gun 5 and the bottom wall of the mineralization tank 1 is less than the distance between the spray end and the discharge port 44, the turbulence of the ore pulp in the lower region 41 can be further strengthened, a strong turbulent flow field is formed in the lower region 41, and the mineralization effect of the flotation equipment is improved.

[0037] In addition, since the spray end of the spray gun 5 is as far away from the bottom of the tank body 4 as possible, the problem that the spray end of the spray gun 5 is blocked by the ore particles not attached to the bubbles can be reduced, and the reliability of the operation of the spray gun 5 is improved. In addition, the spray gun 5 does not need to be provided with a driving motor and the like on the tank body 4, and is convenient to use and disassemble, and low in cost.

[0038] It can be understood that mineralization refers to a selective adhesion process of target particles to bubbles. After mineralization, the ore slurry includes mineralized bubbles (the mineralized bubbles can be referred to as mineralized bubbles after aggregation, and in the following description, the mineralized bubbles and the mineralized bubbles can be used interchangeably) and other particles not attached to the bubbles. The mineralized bubbles are target particles attached to the bubbles. Here, the target particles attached to the bubbles can also be referred to as mineralized particles, and the other particles can include target mineral particles not attached to the bubbles, non-target mineral particles not attached to the bubbles, and tailing particles.

[0039] Optionally, as shown in Figure 1 The lower end of the tank body 4 has a tapered section 45, the cross section of the tapered section 45 gradually decreases along the direction from top to bottom, the discharge port 44 is arranged at the lower end of the tapered section 45, and the spray gun 5 includes a first spray gun 51. The spray end of the first spray gun 51 is arranged above the tapered section 45 and adjacent to the axis of the tank body 4. The flotation device of the embodiment of the utility model can guide the ore particles not attached to the bubbles by designing the lower end of the tank body 4 into the tapered section 45, so as to improve the smoothness of the ore particles not attached to the bubbles discharged from the discharge port 44 and avoid the problem of ore particles not attached to the bubbles accumulated at the bottom of the tank body 4.

[0040] In addition, since the spray end of the first spray gun 51 is arranged above the tapered section 45, the normal discharge of the ore particles not attached to the bubbles will not be affected, so as to avoid the problem that the ore particles not attached to the bubbles participate in the turbulent mineralization again, and the flotation efficiency of the flotation device is improved. By arranging the spray end of the first spray gun 51 adjacent to the axis of the tank body 4, the gas sprayed by the first spray gun 51 can be close to the center of the tank body 4, so that the gas can spread around, and the uniformity of the mixing of the gas and the ore slurry is improved.

[0041] For example, the first spray gun 51 is a plurality of first spray guns 51, and the plurality of first spray guns 51 are arranged at intervals along the circumference of the tank body 4, so as to further improve the mixing effect of the gas and the ore slurry.

[0042] Further, as shown in Figure 1As shown, the spray gun 5 includes multiple second spray guns 52, which are arranged at intervals along the circumference of the tank 4. The ejection ends of the second spray guns 52 are located above the conical section 45 and between the ejection ends of the first spray gun 51. It can be understood that the ejection ends of the second spray guns 52 are located below the ejection ends of the first spray guns 51. The first spray gun 51 and the second spray gun 52 simultaneously inject gas into the tank 4 to improve the mixing effect of the gas and slurry in the lower region 41.

[0043] In other words, when the gas ejected by the first spray gun 51 fails to capture the target mineral, the gas ejected by the second spray gun 52 below it can be further mixed with the slurry to ensure sufficient mixing of the gas and the slurry.

[0044] In addition, since there are multiple second spray guns 52, and these multiple second spray guns 52 are arranged at intervals along the circumference of the tank body 4, the mixing effect of gas and slurry is further improved.

[0045] Optionally, such as Figure 1 As shown, the spray gun 5 includes multiple third spray guns 53, which are arranged at intervals along the circumference of the tank 4. The spraying ends of the third spray guns 53 are located within the conical section 45. Because the spraying ends of the third spray guns 53 are located within the conical section 45, when the third spray guns 53 spray gas, they can agitate the slurry at the bottom of the tank 4 that has not been attached to air bubbles, preventing mineral particles from settling. This avoids the problem of blockage at the discharge port 44 caused by mineral particle settling, and helps ensure the normal operation of the flotation equipment.

[0046] In addition, since there are multiple third spray guns 53, and these multiple third spray guns 53 are arranged at intervals along the circumference of the tank body 4, the mixing effect of gas and slurry can be further improved, and the problem of blockage of discharge port 44 caused by mineral particle deposition can be avoided.

[0047] Understandably, the first spray gun 51, the second spray gun 52, and the third spray gun 53 work together to perform stepwise mixing of the slurry containing particles not attached to air bubbles, thereby improving the mineralization effect.

[0048] For example, the nozzle of the second spray gun 52 is open in a horizontal direction, and the nozzle of the third spray gun 53 faces the slurry outlet 12. This allows the gas to be evenly distributed in the lower region 41 and reduces the problem of blockage at the discharge port 44 caused by mineral particle deposition.

[0049] Furthermore, such as Figure 1 As shown, the spray directions of several second spray guns 52 and several third spray guns 53 intersect each other. This can enhance the turbulence of the slurry in the lower region 41, creating a strong turbulent flow field in the lower region 41, which is beneficial to improving the mineralization effect of the flotation equipment.

[0050] In an example, the lance 5 is an inner tube and an outer tube, the inner tube is sleeved in the outer tube, the inner tube has a first gas flow channel, and the second gas flow channel is defined between the inner tube and the outer tube, so that the gas can be sprayed more uniformly, and the formation of small mineralization bubbles is facilitated, and the mineralization effect is better.

[0051] In another example, a gas distribution head (not shown) is mounted on the spraying end of the lance 5, the gas distribution head is provided with a plurality of gas distribution holes spaced from each other, and the plurality of gas distribution holes are communicated with the spraying end, so that the gas can be sprayed more uniformly, and the formation of small mineralization bubbles is facilitated, and the mineralization effect is better.

[0052] In some embodiments, as shown in Figure 1 The upper turbulence suppression grid 3 is located above the mineralization tank 1 and is spaced from the mineralization tank 1 by a preset distance, and the upper turbulence suppression grid 3 is adjacent to the communication area 43. In this way, the turbulence degree of the ore pulp at the position above the mineralization tank 1 can be reduced, so that the mineralization bubbles can flow smoothly into the upper area 42, and the trend of the ore pulp at the position above the mineralization tank 1 flowing to be more chaotic is avoided, which is beneficial to improve the mineralization and flotation effect of the flotation device.

[0053] Further, the lower turbulence suppression grid (not shown) is located below the mineralization tank 1 and is spaced from the mineralization tank 1 by a preset distance, and the lower turbulence suppression grid is adjacent to the communication area 43. 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 not attached to the bubbles can flow smoothly into the lower area 41, and the trend of the ore pulp at the preset position below the mineralization tank 1 flowing to be more chaotic is avoided, which is beneficial to improve the mineralization and flotation effect of the flotation device.

[0054] For example, the preset distance is M, and the inner diameter of the tank body 4 is N, wherein 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.

[0055] Optionally, the position of at least one of the upper turbulence suppression grid 3 and the lower turbulence suppression grid in the up-down direction is adjustable. In this way, the flotation device can adjust the turbulence suppression grid to the appropriate position according to different flotation minerals or flotation effects, so as to expand the application range of the flotation device, and the turbulence suppression effect is better.

[0056] Optionally, as shown in Figure 3 and Figure 4As shown, the rotor 22 is in the form of an impeller, which includes a hub 221, a disc 222, a top plate 224, a bottom plate 225 and blades 223, the blades 223 including upper blades 2231 and lower blades 2232. The hub 221 is mounted at the lower end of the rotating shaft 21, the disc 222, the top plate 224 and the bottom plate 225 are mounted on the hub 221 and the 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 disc 222 and the top plate 224 and are spaced along the circumference of the disc 222, and the multiple lower blades 2232 are arranged between the lower surface of the disc 222 and the disc 222 and are spaced along the circumference of the disc 222. The upper blades 2231 and the lower blades 2232 are one-to-one corresponding or staggered along the circumference of the disc 222.

[0057] 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.

[0058] When the impeller rotates, as shown in Figure 3 and Figure 4 The upper blades 2231 on the upper side of the disc 222 and the lower blades 2232 on the lower side of the disc 222 can rotate at the same time, which can enhance the pulp suction capacity of the impeller (the ability to suck the pulp from the pulp inlet 11 into the mechanical stirring chamber 13), on the one hand, and can enhance the strength of the internal pulp circulation, improve the mineralization effect of the pulp, and enhance the selectivity in the flotation process.

[0059] For example, the upper blades 2231 and the lower blades 2232 are distributed in a radial and radial 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.

[0060] Since the upper blades 2231 are arranged between the upper surface of the disc 222 and the top plate 224, and the lower blades 2232 are arranged between the lower surface of the disc 222 and the disc 222, the strength of the internal 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 target mineral by the bubbles and enhance the selectivity in the flotation process.

[0061] For example, the outer contour of the top plate 224 is substantially consistent with the size of the outer contour surrounded by the plurality of upper blades 2231. The outer contour of the bottom plate 225 is substantially consistent with the size of the outer contour surrounded by the plurality of lower blades 2232.

[0062] Optionally, as shown in Figure 1As shown, the rotating shaft 21 has a gas supply channel 211 for supplying gas into the mechanical stirring cavity 13.

[0063] In some embodiments, the flotation device further comprises a pre-mineralization device and a feeding pipe 6, one end of the feeding pipe 6 is in communication with the pre-mineralization device, and the other end of the feeding pipe 6 is in communication with the pulp inlet 11. The pre-mineralization device is used for pre-mineralizing the ore pulp, and the pre-mineralization device can be mechanical stirring type or aeration type.

[0064] It can be understood that when the flotation device is used, the ore pulp is first pre-mineralized by the pre-mineralization device, that is, a part of the micro-bubbles is formed in the ore pulp, so that a part of the target particles are attached to the bubbles, and then the pre-mineralized ore pulp is fed into the mineralization tank 1 through the feeding pipe for mechanical stirring, and then enters the lower region 41 for column selection. Therefore, the mineralization effect can be further improved, which is particularly beneficial to the flotation of fine particles.

[0065] Further, as shown in the drawings, Figure 2 As shown, the mechanical stirring cavity 13 is provided with a plurality of turbulent flow enhancement plates 14, the plurality of turbulent flow enhancement plates 14 are arranged in a circumferential direction of the mechanical stirring cavity 13 and arranged around the rotor 22, and the turbulent flow enhancement plates 14 are connected with the inner wall of the mechanical stirring cavity 13. When the rotor 22 rotates, since the plurality of turbulent flow enhancement plates 14 are arranged in the circumferential direction of the mechanical stirring cavity 13, the ore pulp flowing in the circumferential direction of the mechanical stirring cavity 13 is sequentially blocked and collided by the plurality of turbulent flow enhancement plates 14, thereby enhancing the turbulent flow effect of the ore pulp in the mechanical stirring cavity 13.

[0066] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0067] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

[0068] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact 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.

[0070] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean 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 the description, the illustrative representation 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, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the specification without contradiction.

[0071] 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. Changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A flotation device, characterized in that The application relates to a mineralization device, which comprises a tank body, a mineralization device and a spray gun. The inner cavity of the tank body comprises an upper region and a column separation region, and the bottom of the tank body is provided with a discharge port. The mineralization device comprises a rotor assembly and a mineralization tank, the mineralization tank is arranged in the tank body, the mineralization tank is provided with a mechanical stirring cavity, the bottom of the mineralization tank is provided with a slurry inlet for feeding slurry into the mechanical stirring cavity, the top of the mineralization tank is provided with a slurry outlet for discharging slurry, the upper region is located above the mineralization tank, the column separation region comprises 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 rotor assembly comprises a rotating shaft and a rotor, the lower end of the rotating shaft extends into the mechanical stirring cavity, and the rotor is arranged at the lower end of the rotating shaft and located in the mechanical stirring cavity. The spray gun is used for spraying gas into the lower region to separate the slurry entering the lower region from the mechanical stirring cavity, the spray outlet of the spray gun extends into the tank body and is located below the mineralization tank, and the distance between the spray outlet and the bottom wall of the mineralization tank is smaller than the distance between the spray outlet and the discharge port in the up-down direction.

2. The flotation plant according to claim 1, characterized in that, The lower end of the tank body is provided with a tapered section, the cross section of the tapered section gradually decreases along the direction from top to bottom, the discharge port is arranged at the lower end of the tapered section, and the spray gun comprises a first spray gun, the spray outlet of the first spray gun is arranged above the tapered section and is arranged adjacent to the axis of the tank body.

3. The flotation plant according to claim 2, characterized in that, The spray gun comprises a plurality of second spray guns, the second spray guns are arranged in the circumferential direction of the tank body, and the spray outlets of the second spray guns are located between the upper end of the tapered section and the spray outlet of the first spray gun.

4. The flotation plant according to claim 3, characterized in that, The spray gun comprises a plurality of third spray guns, the third spray guns are arranged in the circumferential direction of the tank body, and the spray outlets of the third spray guns are arranged in the tapered section.

5. The flotation plant according to claim 4, characterized in that, The spray outlets of the second spray guns are opened in the horizontal direction, and the spray outlets of the third spray guns are directed towards the slurry outlet. And / or, the spray directions of the second spray guns and the third spray guns intersect with each other.

6. The flotation plant of claim 1, characterized in that, The spray gun comprises an inner pipe and an outer pipe, the inner pipe is sleeved in the outer pipe, the inner pipe is provided with a first gas flow channel, and a second gas flow channel is defined between the inner pipe and the outer pipe. Or, a gas distribution head is arranged on the spray outlet of the spray gun, the gas distribution head is provided with a plurality of gas distribution holes which are spaced apart from each other and are communicated with the spray outlet.

7. The flotation plant of claim 1, characterized in that, The tank body is provided with an upper turbulence suppression grid, the upper turbulence suppression grid is located above the mineralization tank and is spaced apart from the mineralization tank by a preset distance, and the upper turbulence suppression grid is adjacent to the communication region. And / or, the tank body is provided with a lower turbulence suppression grid, the lower turbulence suppression grid is located below the mineralization tank and is spaced apart from the mineralization tank by a preset distance, and the lower turbulence suppression grid is adjacent to the communication region.

8. The flotation plant according to claim 7, characterized in that The position of at least one of the upper turbulence suppression grid and the lower turbulence suppression grid in the up-down direction is adjustable.

9. The flotation plant of claim 1, characterized in that, The flotation device further comprises a pre-mineralization device arranged outside the tank body and configured to pre-mineralize the ore slurry, and a feeding pipe having one end in communication with the pre-mineralization device and the other end in communication with the ore slurry inlet.

10. The flotation plant according to any of claims 1 - 9, characterized in that, The rotor is a 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 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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