Mineralization assembly and flotation machine

Abstract

The mineralization assembly comprises a mineralization barrel and a rotor assembly, a mechanical stirring cavity is formed in the mineralization barrel, a pulp inlet used for supplying ore pulp into the mechanical stirring cavity is formed in the bottom of the mineralization barrel, a pulp outlet used for the ore pulp is formed in the top of the mineralization barrel, and the mineralization barrel is a cylinder; 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 located in the mechanical stirring cavity and installed at the lower end of the rotating shaft to be driven by the rotating shaft to rotate so as to conduct mechanical stirring mineralization in the mechanical stirring cavity. The mineralization assembly is good in mineralization effect, and the energy consumption of the mineralization assembly during working can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flotation, specifically, a mineralization assembly and a flotation machine. BACKGROUND

[0002] Flotation is a widely used mineral processing method. When flotation is carried out using a flotation device, ore pulp is fed into a flotation tank and mechanically agitated or aerated to mineralize. After mineralization, target particles selectively adhere to bubbles to form mineralized bubbles, which float upwards. Other particles that do not adhere to the bubbles are discharged from the bottom of the flotation tank with the ore pulp, thereby achieving the purpose of separating minerals.

[0003] In related technology, a mechanical agitation chamber is provided in the flotation machine, and ore pulp and air are fed into the mechanical agitation chamber from the outside. Mineralization is carried out under the action of mechanical agitation. However, the mineralization structure in related technology has the problems of unreasonable design, poor mineralization effect, and high energy consumption. SUMMARY

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

[0005] To this end, the utility model embodiment provides a mineralization assembly, which has better mineralization effect and is beneficial to reducing the energy consumption of the mineralization assembly when working.

[0006] The utility model embodiment also provides a flotation machine.

[0007] The mineralization assembly of the utility model embodiment comprises: a mineralization cylinder, which has a mechanical agitation chamber inside, a pulp inlet for feeding ore pulp into the mechanical agitation chamber is provided at the bottom of the mineralization cylinder, a pulp outlet for discharging ore pulp is provided at the top of the mineralization cylinder, and the mineralization cylinder is a cylindrical drum; a rotor assembly, which comprises a rotating shaft and a rotor, the lower end of the rotating shaft extends into the mechanical agitation chamber, and the rotor is located in the mechanical agitation chamber and is installed at the lower end of the rotating shaft to be driven to rotate by the rotating shaft to perform mechanical agitation in the mechanical agitation chamber.

[0008] According to the mineralization assembly of the utility model embodiment, when mineralization is carried out, ore pulp is fed into the mineralization cylinder through the pulp inlet in a downward direction. The rotor rotates in the mechanical agitation chamber to generate mineralization foam. Since the mineralization cylinder is a cylindrical drum, it can increase the horizontal turbulence of the ore pulp, concentrate the energy of the ore pulp flow, and improve the utilization efficiency. It is easier to form small bubbles, which is beneficial to reducing the energy consumption of the mineralization assembly when working.

[0009] In some embodiments, the mineralization assembly further comprises a cover plate arranged above the mineralization cylinder, wherein the cover plate is opposite to the slurry outlet and spaced apart from the top surface of the mineralization cylinder, or the cover plate covers the slurry outlet and is provided with flow holes for communication between the mechanical stirring cavity and outside the mechanical stirring cavity.

[0010] In some embodiments, a plurality of turbulence enhancement plates are arranged in the mineralization cylinder, and the plurality of turbulence enhancement plates are arranged along the circumference of the mineralization cylinder and surround the rotor.

[0011] In some embodiments, the turbulence enhancement plate is a flat plate extending along the radial direction of the mineralization cylinder, and the central axis of the mineralization cylinder is located in the plane of the flat plate; or the plane of at least one of the flat plates is offset from the central axis of the mineralization cylinder.

[0012] In some embodiments, the turbulence enhancement plate is a hollow plate provided with a hollow hole penetrating through the thickness direction of the hollow plate.

[0013] In some embodiments, the rotor is an impeller, and a plurality of first baffles are arranged in the mechanical stirring cavity, the plurality of first baffles are arranged along the circumference of the cylinder and are higher than the impeller, and in the horizontal projection of the mineralization cylinder, the first baffles extend inward beyond the outer peripheral contour line of the impeller.

[0014] In some embodiments, the rotor is an impeller, and a plurality of second baffles are arranged in the mechanical stirring cavity, the plurality of second baffles are arranged along the circumference of the mineralization cylinder and are lower than the impeller, and in the horizontal projection of the mineralization cylinder, the second baffles extend inward beyond the outer peripheral contour line of the impeller.

[0015] In some embodiments, the rotor is an impeller, and the impeller is located in the mechanical stirring cavity, the impeller comprises a disc and a plurality of blades, the disc is installed at the lower end of the rotating shaft, the plurality of blades are arranged along the circumferential direction of the disc and the outer periphery of the disc, and in the longitudinal section of the impeller, the contour line of the outer side surface of the blade comprises a vertical segment and an arc segment, the arc segment is arranged at the upper segment of the vertical segment and gradually extends inward.

[0016] In some embodiments, the rotating shaft has an air supply channel for supplying air into the mechanical stirring cavity for mechanical stirring mineralization, the disc has a jet channel in communication with the air supply channel in the rotating shaft, and the jet outlet of the jet channel is formed on the outer peripheral surface of the disc and is arranged along the circumferential direction of the disc.

[0017] Another embodiment of the flotation machine of the utility model comprises the mineralization assembly of the utility model.

[0018] According to the flotation machine, when the flotation machine mineralizes the ore pulp, the ore pulp is passed into the mineralization cylinder through the ore pulp inlet along the direction from bottom to top, the rotor rotates and stirs in the mechanical stirring cavity, thereby mineralizing the ore pulp to generate mineralization foam, since the mineralization cylinder is a cylinder, the turbulence in the horizontal direction of the ore pulp can be increased, the energy of the ore pulp flow is more concentrated and the utilization efficiency is higher, and it is easier to form small bubbles, and the energy consumption of the flotation machine during work is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of the flotation machine of the embodiment of the utility model.

[0020] Figure 2 is a schematic view of the mineralization assembly of the embodiment of the utility model.

[0021] Figure 3 is a schematic view of the rotor of the mineralization assembly of the embodiment of the utility model.

[0022] Figure 4 is a partial cross-sectional schematic view of the rotor of the mineralization assembly of the embodiment of the utility model.

[0023] Figure 5 is a schematic view of the cover plate of the mineralization assembly of the embodiment of the utility model.

[0024] Figure 6 is a schematic view of the blade of the mineralization assembly of the embodiment of the utility model.

[0025] Figure 7 is a schematic view of the rotor of the mineralization assembly of the embodiment of the utility model.

[0026] REFERENCE SIGNS:

[0027] 1, mineralization cylinder; 11, ore pulp inlet; 12, ore pulp outlet; 13, mechanical stirring cavity; 14, turbulence strengthening plate; 141, hollow hole; 15, first baffle; 16, second baffle;

[0028] 2, rotor assembly; 21, rotating shaft; 211, air supply channel; 22, rotor; 221, hub; 222, wheel disc; 223, blade; 2220, air injection channel; 2231, upper blade; 2232, lower blade; 2233, vertical section; 2234, arc section; 224, top plate; 225, bottom plate;

[0029] 31, cover plate; 311, flow-through hole; 32, feed pipe;

[0030] 4, groove body; 41, column selection area; 42, upper area;

[0031] 5, air charging device. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, examples of which are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0033] The embodiments of the present application are described below with reference to the drawings. Figures 1 to 7 The mineralization assembly and the flotation machine of the embodiments of the present application are described.

[0034] As shown in Figure 1 and Figure 2 The mineralization assembly of the embodiments of the present application comprises a mineralization cylinder 1 and a rotor assembly 2. The mineralization cylinder 1 has a mechanical stirring cavity 13 inside, which is used for mineralization therein, which is referred to as mechanical stirring mineralization here, that is, the target particles in the ore pulp and the air supplied into the mechanical stirring cavity 13 are under the mechanical stirring action of the rotor assembly 2, the target particles are attached to the bubbles to form mineralized bubbles, so as to realize mechanical stirring flotation.

[0035] The bottom of the mineralization cylinder 1 is provided with a pulp inlet 11 for supplying ore pulp into the mechanical stirring cavity 13, and the top of the mineralization cylinder 1 is provided with a pulp outlet 12 for discharging the mechanically stirred ore pulp. It can be understood that the ore pulp coming out of the mechanical stirring cavity includes target particles attached to bubbles and other particles (target particles not attached to bubbles or other non-target particles).

[0036] As shown in Figure 1 and Figure 2 The mineralization cylinder 1 is a cylinder, and 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 through the pulp outlet 12, 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 perform mechanical stirring 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 provided to supply air into the mechanical stirring cavity 13.

[0037] It should be understood that the mineralization cylinder 1 is a cylinder, that is, the cross section of the mineralization cylinder 1 is circular, and of course, the bottom of the mineralization cylinder 1 can have a small section of a conical shape. The mineralization cylinder 1 is a cylinder, which means that most of the mineralization cylinder 1 has a circular cross section, which can be more than two-thirds of the mineralization cylinder 1 having a circular cross section.

[0038] As shown in Figure 1 The plane of the bottom of the mineralization cylinder 1, that is, the mineralization cylinder 1 has a regular cylindrical structure.

[0039] According to the mineralization assembly, when the mineralization assembly performs mineralization on the ore pulp, the ore pulp is introduced into the mineralization cylinder 1 through the ore pulp inlet 11 in the downward-to-upward direction, the rotor 22 rotates and stirs in the mechanical stirring cavity 13, air is dispersed to form tiny bubbles, particles adhere to the bubbles to form mineralized bubbles, and the ore pulp containing the mineralized bubbles and other particles can flow out of the ore pulp outlet 12 of the mineralization cylinder 1. Since the mineralization cylinder 1 is a cylinder, the horizontal turbulence of the ore pulp can be increased, the energy of the ore pulp flow is more concentrated and the utilization efficiency is higher, and tiny bubbles are more easily formed, which is beneficial to reducing the energy consumption of the mineralization assembly during operation.

[0040] Since the peripheral wall surface of the mineralization cylinder 1 is in a cylindrical structure, the horizontal turbulence of the ore pulp can be increased, the energy of the ore pulp flow is more concentrated and the utilization efficiency is higher. In the case that the same mineralization effect can be achieved for the fine particle minerals, the energy dissipation is lower, or the mineralization kinetic energy is sufficient under the same energy, and tiny bubbles are more easily formed.

[0041] It can be understood that mineralization refers to a selective adhesion process of target particles and bubbles. After mineralization, the ore pulp includes mineralized bubbles (the mineralized bubbles can be called mineralized foam after aggregation, and the mineralized bubbles and the mineralized foam can be used interchangeably in the following description) and other particles that are 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 called mineralized particles, and the other particles can include non-target mineral particles and tailing particles that are not attached to the bubbles.

[0042] In the related art, mineralization is performed in a mineralization tank of a flotation device, ore pulp is introduced into the mineralization tank from the outside, and mineralization is performed under the action of air supply and mechanical stirring. However, the inventors have found that, due to the large space in the mineralization tank, the mineralization and flotation effects are poor and the flotation efficiency is low. Therefore, in the related art, a parabolic basin-shaped reflection bottom is provided in the mineralization tank, ore pulp and gas are supplied into the reflection bottom, and mechanical stirring is performed in the reflection bottom to achieve bubble mineralization. The reflection bottom reflects the ore pulp containing mineralized bubbles out of the reflection bottom to improve the flotation efficiency. However, the inventors have found that the mineralization and flotation effects are still poor and the efficiency is still low. The inventors have found through research that, compared with mineralization in the mineralization tank, the reflection effect of the reflection bottom can improve the flotation efficiency to a certain extent. However, since the top of the reflection bottom is open, the stirred ore pulp is quickly discharged from the reflection bottom under the reflection effect of the reflection bottom, the residence time is short, and the mineralization effect is affected.

[0043] In order to further improve the mineralization and flotation effect, and improve the flotation efficiency, the inventor proposes a limited mineralization scheme. The limited mineralization refers to the mineralization in a relatively closed and relatively small limited space compared with related technologies. The limited space can also be referred to as a limited space, a limited area, a limited area or a limited area, simply referred to as a limited area. For example, the limited area is smaller and relatively closed compared with the inner cavity of the mineralization tank in related technologies, and is relatively closed compared with the open parabolic reflection bottom in related technologies. During the mineralization process, the ore pulp and gas are introduced into the limited space, and mechanical stirring is performed in the limited space, so that more air bubbles can be formed. The air bubbles and the target particles in the ore pulp repeatedly reflect, stir and collide with each other in the limited space, thereby increasing the contact time, contact frequency and collision frequency of the air bubbles and the target particles, improving the mineralization and flotation effect, and further improving the efficiency. Therefore, the mineralization performed in the limited space can be referred to as limited mineralization.

[0044] Specifically, as shown in Figure 1 The mineralization assembly further includes a cover plate 31 arranged above the mineralization cylinder 1. The cover plate 31 is opposite to the pulp outlet 12 and spaced apart from the top surface of the mineralization cylinder 1, so that the mineralized ore pulp flows out. It can be understood that the cover plate 31 and the mineralization tank 1 define a limited mineralization area including the mechanical stirring cavity 13. The mineralization assembly of the embodiment of the utility model improves the sealing performance of the mechanical stirring cavity 13 by arranging the cover plate 31 above the mineralization cylinder 1, prolongs the time of the ore pulp reflecting, rectifying and surging in the mechanical stirring cavity 13, increases the contact time, contact frequency and collision frequency of the air bubbles and the target particles, improves the mineralization effect, and makes the ore pulp speed uniformly flow out of the pulp outlet 12 of the mechanical stirring cavity 13. The flow field disturbance formed by the rotation of the impeller is blocked by the cover plate 31, so that the turbulence intensity on the lower side of the upper area 42 above the mechanical stirring cavity 13 is low, which is beneficial to the upward movement of the mineralization bubbles.

[0045] In other words, the ore pulp is more turbulent in the relatively closed and relatively small area of the mineralization cylinder 1 with the cover plate 31, the bubbles are smaller and more likely to capture fine particles. The mineralization bubbles flow more smoothly on the lower side of the upper area 42 above the mechanical stirring cavity 13, the attached particles are stable and not easy to fall off.

[0046] The spacing distance between the cover plate 31 and the top surface of the mineralization cylinder 1 can be adaptively adjusted according to different types of ore pulp, and the embodiment of the utility model is not limited in this regard.

[0047] In other examples, as Figure 5As shown, the cover plate 31 seals the slurry outlet 12 and has a flow hole 311 for communicating the mechanical stirring chamber 13 with the outside of the mechanical stirring chamber 13. The mineralized slurry containing mineralizing bubbles in the mechanical stirring chamber 13 flows out through the flow hole 311. It can be understood that the cover plate 31 and the mineralization tank 1 define a confined mineralization area including the mechanical stirring chamber 13. The mineralization component of this embodiment improves the sealing of the mechanical stirring chamber 13 by setting the cover plate 31 above the mineralization cylinder 1, which can prolong the time for the slurry to reflect, rectify and churn in the mechanical stirring chamber 13, thereby increasing the contact time, contact and impact frequency between bubbles and target particles, improving the mineralization effect, and allowing the slurry to flow out of the slurry outlet 12 of the mechanical stirring chamber 13 at a uniform speed. Furthermore, the flow field disturbance formed by the impeller rotation is blocked by the cover plate 31, which can reduce the turbulence intensity on the lower side of the upper region 42 above the mechanical stirring chamber 13, which is conducive to the rise of mineralizing bubbles.

[0048] In other words, the slurry flows more intensely in the relatively enclosed and smaller area of ​​the mineralization cylinder 1 with the cover plate 31, resulting in finer bubbles and making it easier to capture microparticles. The slurry flows more smoothly in the column separation area of ​​the upper region 42 above the mechanical stirring chamber 13, the attached particles are more stable and less likely to fall off, and the mineralization bubbles rise smoothly, improving efficiency.

[0049] In some embodiments, such as Figure 1 and Figure 2 As shown, the mineralization cylinder 1 is equipped with multiple turbulence-enhancing plates 14, which are arranged at intervals along the circumference of the mineralization cylinder 1 and surround the rotor 22. When the rotor 22 rotates, the turbulence-enhancing plates 14 are arranged at intervals along the circumference of the mechanical stirring chamber 13, thereby stopping and colliding with the turbulence-enhancing plates 14 in sequence, enhancing the turbulence effect of the slurry in the mechanical stirring chamber 13, and thus improving the mineralization effect.

[0050] Optionally, such as Figure 2 As shown, rotor 22 is in impeller form, with an outer diameter of A. The radial clearance between the outer edge of the impeller and the inner edge of the turbulence-enhancing plate 14 on the shaft 21 is B, where 0.03A ≤ B ≤ 0.2A. In other words, the clearance between the impeller and the inner edge of the turbulence-enhancing plate 14 is 3%-20% of the impeller diameter. For example, B is equal to 0.03A, 0.08A, 0.12A, 0.15A, or 0.2A.

[0051] The inventors of this utility model have discovered through research and confirmed through experiments that when the impeller and the turbulence reinforcing plate 14 adopt the above-mentioned structural parameters, it is easier to generate microbubbles during slurry mineralization, and the circulation mixing effect is better, which is more conducive to the mineralization of fine-grained minerals.

[0052] Optionally, the turbulence intensifier plate 14 is a flat plate, the flat plate extends along the radial direction of the mineralization cylinder 1, and the central axis of the mineralization cylinder 1 is located in the plane of the flat plate. It can be understood that a plurality of turbulence intensifier plates 14 are distributed in a radial manner, and since the turbulence intensifier plate 14 extends along the radial direction of the mineralization cylinder 1 and the central axis of the mineralization cylinder 1 is located in the plane of the turbulence intensifier plate 14, the turbulence effect of the ore pulp in the mechanical stirring cavity 13 can be improved.

[0053] Alternatively, the plane in which at least one flat plate (turbulence intensifier plate 14) is located is offset from the central axis of the mineralization cylinder 1. It can be understood that the turbulence intensifier plate 14 has a certain distance from the central axis of the mineralization cylinder 1, thereby further dispersing the ore pulp, more easily generating tiny bubbles, and better circulating and mixing effect, which is beneficial to the flotation of fine-grained minerals.

[0054] Optionally, as shown in Figure 2 , the turbulence intensifier plate 14 is a hollow plate provided with a hollow hole 141 penetrating along the thickness direction thereof.

[0055] The turbulence intensifier plate 14 of the mineralization assembly in the embodiment of the utility model is designed into a hollow structure, so that tiny bubbles are more easily generated when the impeller rotates, the circulating mixing effect of the ore pulp and the bubbles is better, and the mineralization of fine-grained minerals is more beneficial, the resistance of the ore pulp flow is smaller, and the energy dissipation is less.

[0056] The opening size of the hollow hole 141 can be designed according to the properties of the minerals, and the utility model does not limit this. For example, the hollow hole 141 can be a strip-shaped hole or a circular hole. The strip-shaped hole can extend obliquely, horizontally or vertically. The hollow hole 141 can be multiple, and the multiple hollow holes 141 are arranged discretely.

[0057] Optionally, as shown in Figure 1 and Figure 2 , the rotor 22 is in the form of an impeller, a plurality of first baffles 15 are arranged in the mechanical stirring cavity 13, the plurality of first baffles 15 are arranged in the circumferential direction of the cylinder and are higher than the impeller, and in the horizontal projection of the mineralization cylinder 1, the first baffle 15 extends inwardly beyond the outer peripheral contour line of the impeller. It can be understood that the outer end of the first baffle 15 is connected to the outer wall of the mineralization cylinder 1 or the turbulence intensifier plate 14, the inner end of the first baffle 15 extends toward the center line of the rotating shaft 21, and extends to the upper side of the impeller. Therefore, when the impeller rotates, the first baffle 15 can stop the ore pulp flowing upward in the mechanical stirring cavity 13 and re-divert it into the mechanical stirring cavity 13, thereby improving the turbulence effect of the mechanical stirring mineralization, and the circulating mixing effect of the ore pulp and the bubbles is better.

[0058] Optionally, as shown in Figure 1 and Figure 2As shown, the rotor 22 is in the form of an impeller, and the mechanical stirring chamber 13 is provided with a plurality of second baffles 16, which are arranged along the circumference of the mineralization cylinder 1 and are lower than the impeller, and in the horizontal projection of the mineralization cylinder 1, the second baffles 16 extend inwardly beyond the outer peripheral contour line of the impeller. It can be understood that the outer end of the second baffle 16 is connected to the outer wall of the mineralization cylinder 1 or the turbulence enhancement plate 14, and the inner end of the second baffle 16 extends towards the center line of the rotating shaft 21 and extends directly below the impeller. Therefore, when the impeller rotates, the second baffle 16 can stop the downward flow of the ore slurry in the mechanical stirring chamber 13 and fold the ore slurry upward, thereby improving the turbulence effect of the mechanical stirring mineralization, and the circulating mixing effect of the ore slurry and the bubbles is better.

[0059] In some embodiments, as shown in Figure 6 and Figure 7 , the impeller is located in the mechanical stirring chamber 13, and the impeller includes a disc 222 and a plurality of blades 223, the disc 222 is installed at the lower end of the rotating shaft 21, and the plurality of blades 223 are arranged along the circumference of the disc 222 and are arranged along the outer periphery of the disc 222. In the longitudinal section of the rotor 22, the outer side surface contour line of the blade 223 includes a vertical section 2234 and an arc section 2235, the upper end of the arc section 2235 is connected to the upper end of the vertical section 2234 and gradually extends inwardly, so that when the impeller rotates, the stirred ore slurry area is turned upward along the arc section. The mineralization assembly of the embodiment of the utility model can improve the turbulence effect of the strengthened ore slurry in the mechanical stirring chamber 13, enhance the capture effect of the bubbles on the target mineral, enhance the strength of the internal ore slurry circulation, and improve the energy utilization rate of the impeller rotation by arranging the blade 223 in the above structure.

[0060] Optionally, as shown in Figure 7 , the rotating shaft 21 has a gas supply channel 211 for supplying mechanical stirring mineralization air into the mechanical stirring chamber 13, and the disc 222 has a gas injection channel 2220 that communicates with the gas supply channel 211 in the rotating shaft 21, and the gas injection outlet of the gas injection channel 2220 is formed on the outer peripheral surface of the disc 222 and is arranged along the circumference of the disc 222. Since the gas injection outlet of the gas injection channel 2220 in the disc 222 is formed on the outer peripheral surface of the disc 222 and is arranged along the circumference of the disc 222, the mixing degree of the ore slurry and the bubbles can be improved, and the mineralization effect of the mineralization assembly can be improved.

[0061] In some embodiments, as shown in Figure 3 and Figure 4 , the rotor 22 is an impeller, and the impeller includes a hub 221, a disc 222, a top plate 224, a bottom plate 225 and a blade 223, and the blade 223 includes an upper blade 2231 and a lower blade 2232.

[0062] The hub 221 is installed at the lower end of the rotating shaft 21, and 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. 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 pulp from the pulp inlet 11 into the mechanical stirring chamber 13) of the impeller, 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.

[0064] For example, the upper blades 2231 and the lower blades 2232 are distributed in a radial and radiating 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, which is not limited in the present application.

[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 pulp circulation can be further enhanced, the energy utilization rate of the impeller rotation is improved, which is beneficial to enhance the capturing 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] As shown in Figure 1 and Figure 2 The flotation machine of the embodiment of the present application comprises a mineralization assembly, and the mineralization assembly can be the mineralization assembly of the above-mentioned embodiments of the present application.

[0068] According to the embodiment of the utility model, when mineralization is carried out, the slurry is passed into the mineralization cylinder 1 through the slurry inlet 11 in the downward direction, the rotor 22 rotates and stirs in the mechanical stirring chamber 13, air is dispersed to form tiny bubbles, particles adhere to the bubbles to form mineralized bubbles, the mineralized bubbles and other particles can flow out of the slurry outlet 12 of the mineralization cylinder 1, the mineralized bubbles flow upward to the upper region 42 to enrich and separate the mineralized bubbles. Since the mineralization cylinder 1 is a cylinder, the turbulence of the slurry in the horizontal direction can be increased, air can be dispersed into smaller and more tiny bubbles, particles are more likely to adhere to the bubbles to form mineralized bubbles, the energy of the slurry flow is more concentrated and the utilization efficiency is higher, which is beneficial to reduce the energy consumption of the flotation machine during operation.

[0069] Specifically, the flotation machine further comprises a tank body 4 and an air charging device 5, the mineralization cylinder 1 is arranged in the tank body 4, and the area between the outer peripheral wall of the mineralization cylinder 1 and the inner peripheral wall of the tank body 4 constitutes a column selection region 41 surrounding the mineralization cylinder 1. The air charging device 5 is in communication with the column selection region 41 and is used for charging the mineralization gas into the column selection region 41 to perform column selection on the slurry entering the column selection region 41 from the mechanical stirring chamber 13. The driving device is arranged above the tank body 4 and is connected with the rotating shaft 21 to drive the rotating shaft 21 and the rotor 22 to rotate.

[0070] When mineralization is carried out, the slurry is passed into the slurry inlet 11 of the mineralization cylinder 1 through the feeding pipe 32, the rotor 22 rotates and stirs in the mechanical stirring chamber 13, air is dispersed to form tiny bubbles, particles adhere to the bubbles to form mineralized bubbles, the slurry containing the mineralized bubbles and the particles not adhering to the bubbles can flow out of the slurry outlet 12 of the mineralization cylinder 1, and the mineralized bubbles flow upward to the upper region 42. Since the area between the outer peripheral wall of the mineralization cylinder 1 and the inner peripheral wall of the tank body 4 constitutes the column selection region 41 surrounding the mineralization cylinder 1, the slurry containing the particles not adhering to the bubbles can flow out of the slurry outlet 12 of the mineralization cylinder 1 and directly enter the column selection region 41, the particles not adhering to the bubbles in the column selection region 41 can be column selected under the action of the air charging device 5, the mineralized bubbles generated after column selection flow upward to the upper region 42, and the other particles not adhering to the bubbles after column selection are discharged from the discharge port below the tank body 4.

[0071] Optionally, the flotation machine of the embodiment of the utility model can not comprise the air charging device 5, so that the flotation machine only performs flotation through mechanical stirring.

[0072] 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.

[0073] 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.

[0074] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, 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.

[0075] 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.

[0076] 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.

[0077] 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 mineralization module, characterized in that, The mineralization assembly comprises: a mineralization cylinder having a mechanical stirring cavity therein, a pulp inlet being arranged at the bottom of the mineralization cylinder for feeding pulp into the mechanical stirring cavity, a pulp outlet being arranged at the top of the mineralization cylinder for discharging pulp, and the mineralization cylinder being a cylinder; a rotor assembly comprising a rotating shaft and a rotor, the lower end of the rotating shaft extending into the mechanical stirring cavity, and the rotor being arranged in the mechanical stirring cavity and mounted on the lower end of the rotating shaft to be driven to rotate by the rotating shaft for mechanical stirring in the mechanical stirring cavity.

2. The mineralization assembly of claim 1, wherein, A plurality of turbulence intensifiers are arranged in the mineralization cylinder, and the plurality of turbulence intensifiers are arranged along the circumferential direction of the mineralization cylinder and surround the rotor.

3. The mineralization assembly of claim 2, wherein, The turbulence intensifier is a flat plate extending along the radial direction of the mineralization cylinder, and the central axis of the mineralization cylinder is located in the plane of the flat plate; or the plane of at least one of the flat plates is offset from the central axis of the mineralization cylinder.

4. The mineralization assembly of claim 2, wherein, The turbulence intensifier is a hollow plate having a hollow hole penetrating through the thickness direction thereof.

5. The mineralization assembly of claim 2, wherein, A plurality of first baffles are arranged in the mechanical stirring cavity, the plurality of first baffles are arranged along the circumferential direction of the cylinder and are higher than the rotor, and in the horizontal projection of the mineralization cylinder, the first baffles extend inwardly beyond the outer peripheral contour line of the rotor.

6. The mineralization assembly of claim 2, wherein, A plurality of second baffles are arranged in the mechanical stirring cavity, the plurality of second baffles are arranged along the circumferential direction of the mineralization cylinder and are lower than the rotor, and in the horizontal projection of the mineralization cylinder, the second baffles extend inwardly beyond the outer peripheral contour line of the rotor.

7. The mineralization assembly of any one of claims 1-6, wherein, The rotor is arranged in the mechanical stirring cavity, and the rotor comprises a disc and a plurality of blades, the disc is mounted on the lower end of the rotating shaft, the plurality of blades are arranged along the circumferential direction of the disc and are arranged on the outer periphery of the disc, and in the longitudinal section of the rotor, the outer side surface of the blade comprises a vertical segment and an arc segment, the upper end of the arc segment is connected to the lower end of the vertical segment and gradually extends inwardly.

8. The mineralization assembly of claim 7, wherein, The rotating shaft has a gas supply channel for supplying mechanical stirring mineralization air into the mechanical stirring cavity, the disc has a gas injection channel in communication with the gas supply channel in the rotating shaft, and the gas injection outlet of the gas injection channel is formed on the outer peripheral surface of the disc and is arranged along the circumferential direction of the disc.

9. The mineralization assembly of any one of claims 1-6, wherein, 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 on 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 a plurality of, the plurality of upper blades are arranged between the upper surface of the disc and the top plate and are arranged along the circumferential direction of the disc, the plurality of lower blades are arranged between the lower surface of the disc and the disc and are arranged along the circumferential direction of the disc, and the upper blades and the lower blades are one-to-one corresponding or staggered along the circumferential direction of the disc.

10. A flotation machine characterized in that, The mineralization assembly comprises any one of claims 1-9. The mineralization assembly comprises any one of claims 1-9.

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