Pre-mineralization flotation device

Abstract

The utility model provides a pre-mineralization flotation device. The pre-mineralization flotation device comprises a feeding part and a pre-mineralization part, the pre-mineralization part comprises a shell, a plurality of first partition pieces and a plurality of second partition pieces, the first partition pieces and the second partition pieces are located in the shell, the feeding part is used for introducing materials and air into a first feeding port, each first partition piece is provided with a first through hole, each second partition piece is provided with a second through hole, and the first through holes and the second through holes are arranged in a staggered mode; the first partition pieces and the second partition pieces are alternately arranged in the mineralization channel in the extending direction of the mineralization channel, and a gap is formed between the first through hole and the second through hole; the reaction part is provided with a reaction chamber as well as a second feed port, a solid outlet and a liquid outlet which are communicated with the reaction chamber, and the first discharge port is used for introducing mixed materials and air into the second feed port; and the bubble generation assembly is used for introducing air into the reaction part so as to generate bubbles in the reaction chamber. According to the technical scheme, the problem that the flotation efficiency of carnallite is low is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of halite floatation, in particular to a pre-mineralization floatation device. BACKGROUND

[0002] Potassium fertilizer is one of the essential nutrients for the growth of crops, and the demand is increasing year by year. However, high-quality potassium ore resources are gradually decreasing, so how to significantly improve the recovery rate of potassium through efficient floatation process is a problem that needs to be studied at present.

[0003] Floatation process is an important means of potassium ore dressing, and the flotation machine is the main equipment for implementing the floatation process. After decades of process optimization, various types of flotation machines have been developed, including mechanical stirring type, jet type and column type. These devices have achieved remarkable results in improving potassium recovery rate and adapting to different ore properties. However, although the flotation machine has advantages in anti-interference ability, operation stability under strong turbulence conditions, low foam layer formation and effective treatment of coarse particles, it does not solve the problem of single mineralization and separation mode of the flotation machine. The existing potassium chloride production practice generally increases the number of tank bodies of the flotation machine or increases the number of process flow stages to improve the floatation capacity, but this will lead to long floatation process and high energy consumption. In the prior art, the flotation column has strong static separation ability due to its high foam layer and strong filtering effect, and has shown strong vitality in the field of floatation technology and has been paid more and more attention by the mineral processing industry. Many countries have carried out a lot of work. For example, Jameson flotation column, micro-bubble flotation column, down-flow-up-flow flotation column and steady flow plate flotation column have been developed.

[0004] However, in the process of floatation of halite in the prior art, halite, floatation reagent and air are directly introduced into the mineralization pipeline, and mineralization is carried out in the pipeline. In this way, the contact area and mixing time of halite, floatation reagent and air in the mineralization chamber are small, which will result in low floatation efficiency. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a pre-mineralization floatation device to solve the problem of low floatation efficiency of halite in the prior art.

[0006] In order to achieve the above object, the utility model provides a kind of pre-mineralization flotation device, pre-mineralization flotation device includes feed part;Pre-mineralization part, including shell and multiple first separators and multiple second separators in shell, shell has mineralization channel and first feed port and first discharge port communicated with mineralization channel, feed part is used to pass into material and air to first feed port, first separator is equipped with first through hole, second separator is equipped with second through hole, along the radial direction of mineralization channel, first through hole and second through hole are arranged in staggered, along the extension direction of mineralization channel, first separator and second separator are alternately arranged in mineralization channel, and first through hole and second through hole have interval between, the radial direction of mineralization channel and extension direction are arranged at angle;Reaction part has reaction chamber and second feed port, solid outlet and liquid outlet communicated with reaction chamber, first discharge port is used to pass into mixed material and air to second feed port;Bubble generating assembly is used to pass into air to reaction part, to generate bubble in reaction chamber.

[0007] Further, the first through hole is located at the center of the first separator, and the second through hole is multiple, and the multiple second through holes are arranged in interval along the circumferential direction of the second separator.

[0008] Further, a first separator is arranged between the first second separator of the multiple second separators and the first feed port, and a first separator is arranged between the last second separator of the multiple second separators and the first discharge port, the first feed port is communicated with the first through hole in correspondence, and the first discharge port is communicated with the first through hole in correspondence.

[0009] Further, the first separator includes a first cylinder segment, a second cylinder segment and a third cylinder segment connected in sequence, the inner diameter of the first cylinder segment and the third cylinder segment are both larger than the inner diameter of the second cylinder segment, the orthographic projection of the first feed port and the multiple second through holes on the first separator is in the interior of the first cylinder segment, and the orthographic projection of the first discharge port and the multiple second through holes is in the third cylinder segment.

[0010] Further, the shell includes a first shell and a second shell arranged along the radial direction of the mineralization channel, the first shell and the second shell are used to enclose the mineralization channel, and the first shell and the second shell are detachably connected.

[0011] Further, the pre-mineralization flotation device further includes a feeding part arranged in the reaction chamber, the feeding part is provided with a feeding chamber and multiple discharge holes communicated with the feeding chamber, and the multiple discharge holes are arranged in interval on the circumferential side wall of the feeding part;A first feed pipeline, one end of the first feed pipeline is communicated with the first discharge port, and the other end of the first feed pipeline is communicated with the feeding chamber of the feeding part by extending into the reaction chamber through the second feed port.

[0012] Further, the reaction part comprises a main body having an opening, a reaction chamber is formed inside the main body, and a solid outlet is arranged on the main body; the bubble collecting part is arranged on the opening of the main body, the bubble collecting part is provided with a collecting cavity and a liquid outlet in communication with the collecting cavity, the opening is in communication with the collecting cavity, and the liquid outlet is located below the opening.

[0013] Further, the bubble collecting part comprises a collecting main body which is a cylindrical structure having an internal through hole; a flow guide plate is arranged at the bottom end of the cylindrical structure, the flow guide plate is located at the outer periphery of the main body and is sealingly connected with the main body, at least part of the flow guide plate is located below the opening, at least part of the flow guide plate is arranged to be inclined relative to the main body, along the radial direction of the cylindrical structure, the flow guide plate has oppositely arranged first and second sides, the second side is provided with the liquid outlet, and the first side is higher than the second side.

[0014] Further, the pre-mineralization flotation device further comprises a spraying part, the spraying part has a spraying member, the spraying member is located on the side of the bubble collecting part away from the reaction part, the spraying member is provided with a spherical wall surface on the side facing the bubble collecting part, and a plurality of spraying holes are arranged on the spherical wall surface.

[0015] Further, the feeding part comprises a mixing member having a mixing chamber and a third feeding port, a liquid inlet and a second discharging port in communication with the mixing chamber; a stirring piece is arranged on the mixing member, the stirring piece comprises a motor, a rotating shaft connected with the output shaft of the motor and a stirring impeller connected with the outer periphery of the rotating shaft, the rotating shaft is rotatably arranged relative to the mixing member, and the stirring impeller is located in the mixing chamber; a second feeding pipeline, a first end of the second feeding pipeline is in communication with the second discharging port, a second end of the second feeding pipeline is in communication with the first feeding port, and a first pump body is arranged on the second feeding pipeline; a first gas source; a first gas inlet pipeline, one end of the first gas inlet pipeline is in communication with the first gas source, and the other end of the first gas inlet pipeline is in communication with the second feeding pipeline.

[0016] The technical scheme of the utility model discloses, through setting up pre-mineralization part, material and air enter into mineralization channel from first feed port, through the alternate setting of first partition piece and second partition piece and the staggered arrangement of first through -hole and second through -hole, material and air can mix and disperse in pre-mineralization part for many times, thereby increasing the contact time and contact area of material and air, material and air can carry out preliminary flotation in pre-mineralization part, the material after preliminary flotation enters into reaction part and carries out again flotation, the solid in the material after again flotation is discharged through solid outlet, the liquid in the material is discharged through liquid outlet, compared with the prior art that directly passes into material and air in pre-mineralization pipeline, in the embodiment, material and air can flow to second partition piece through first through -hole from first feed port and be dispersed on the cross section of whole mineralization channel through multiple second through -holes, again flow to second partition piece through first through -hole and be dispersed on the cross section of whole mineralization channel through multiple second through -holes, in this way, material and air can mix continuously in mineralization channel and carry out pre-flotation in mineralization channel, thereby improving the flotation effect of material. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application and its

[0018] Figure 1 Fig. 1 shows a structure schematic view of an embodiment of the pre-mineralization flotation device of the utility model;

[0019] Figure 2 Fig. 2 shows a structure schematic view of the pre-mineralization part of the pre-mineralization flotation device of the utility model; Figure 1

[0020] Figure 3 Fig. 3 shows a structure schematic view of the first partition piece of the pre-mineralization part of the utility model; Figure 2

[0021] Figure 4 Fig. 4 shows a sectional view of the A-A of the utility model; Figure 3

[0022] Figure 5 Fig. 5 shows a structure schematic view of the second partition piece of the pre-mineralization part of the utility model; Figure 2

[0023] Figure 6 Fig. 6 shows a sectional view of the B-B of the utility model; Figure 5

[0024] Figure 7 Fig. 7 shows a structure schematic view of the bubble generating part of the pre-mineralization flotation device of the utility model; Figure 1 ​​​​​​

[0025] Figure 8 a sectional view of the bubble collecting part of the pre-mineralization flotation device of the present application is shown; Figure 1 a plan view of the bubble collecting part of the pre-mineralization flotation device of the present application is shown;

[0026] Figure 9 a sectional view of the bubble collecting part of the pre-mineralization flotation device of the present application is shown; Figure 8 a sectional view of the bubble collecting part of the pre-mineralization flotation device of the present application is shown.

[0027] Wherein, the above drawings include the following reference signs:

[0028] 1, reaction part; 2, mixing component; 3, rotating shaft; 4, motor; 5, first pump body; 6, first air source; 12, second air source; 13, second air inlet pipeline; 14, first annular pipeline; 15, first air outlet hole; 16, third air inlet pipeline; 18, second pump body; 19, first discharge pipeline; 20, second annular pipeline; 21, liquid outlet hole; 22, third feeding pipeline; 23, bubble generating part; 231, fifth feeding port; 2331, first flange; 2332, second flange; 2333, third flange; 2334, fourth flange; 232, air inlet; 233, support pipe; 234, feeding pipe; 2341, first channel; 2342, second channel; 2343, third channel; 235, third discharge port; 236, first pipeline; 237, second pipeline; 238, discharge pipe; 239, limiting ring; 24, feeding hole; 25, third air source; 26, fourth air inlet pipeline; 27, bubble generating piece; 28, solid outlet; 31, first feeding pipeline; 7, pre-mineralization part; 71, first feeding port; 72, first partition; 721, first through hole; 722, first cylinder segment; 723, second cylinder segment; 724, third cylinder segment; 73, second partition; 731, second through hole; 75, first discharge port; 76, shell; 8, feeding part; 9, spraying component; 10, bubble collecting part; 100, flow guide plate; 101, collecting main body; 102, flow guide main plate; 103, mounting plate; 11, liquid outlet; 17, second feeding pipeline; 30, first air inlet pipeline; 32, main bubble generating assembly; 33, air inlet part; 34, second feeding part. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] As Figures 1 to 6The utility model provides a kind of pre-mineralization flotation device shown.The pre-mineralization flotation device includes feed part;Pre-mineralization part 7, including shell 76 and multiple first separators 72 and multiple second separators 73 in shell 76, shell 76 has mineralization passage and first feed port 71 and first discharge port 75 communicated with mineralization passage, feed part is used to pass into material and air to first feed port 71, first separator 72 is equipped with first through-hole 721, second separator 73 is equipped with second through-hole 731, along the radial direction of mineralization passage, first through-hole 721 and second through-hole 731 are arranged in staggered manner, along the extension direction of mineralization passage, first separator 72 and second separator 73 are alternately arranged in mineralization passage, and first through-hole 721 and second through-hole 731 have interval, the radial direction of mineralization passage and extension direction are arranged at angle;Reaction part 1 has reaction chamber and second feed port, solid outlet 28 and liquid outlet 11 communicated with reaction chamber, first discharge port 75 is used to pass into mixed material and air to second feed port;Bubble generating assembly is used to pass into air to reaction part 1, to generate bubble in reaction chamber.

[0031] In the above technical solution, by setting pre-mineralization part 7, material and air enter into mineralization passage from first feed port 71, through the alternate arrangement of first separator 72 and second separator 73 and the staggered arrangement of first through-hole 721 and second through-hole 731, material and air can be mixed and dispersed multiple times in pre-mineralization part 7, thereby increasing the contact time and contact area of material and air, material and air can be preliminarily floated in pre-mineralization part 7, the material after preliminary flotation enters reaction part 1 for re-flotation, the solid in the material after re-flotation is discharged through solid outlet 28, and the liquid in the material is discharged through liquid outlet 11. Compared with the prior art of directly passing material and air into the pre-mineralization pipeline, in the embodiment, material and air can flow from first feed port 71 to second separator 73 through first through-hole 721, and then be dispersed to the entire cross section of the mineralization passage through multiple second through-holes 731. In this way, material and air can be continuously mixed in the mineralization passage and pre-flotation in the mineralization passage, thereby improving the flotation effect of the material.

[0032] Furthermore, in the embodiments of this utility model, the alternating arrangement of the first separator 72 and the second separator 73, and the interval between the first through hole 721 and the second through hole 731, if there is no interval between the first through hole 721 and the second through hole 731, then the first through hole 721 will directly contact the solid part of the second separator 73, and the material and air will be blocked in the first through hole 721. In this way, the material and air cannot flow from the first through hole 721 to the multiple second through holes 731, and thus the pre-mineralization effect cannot be achieved in the pre-mineralization section 7.

[0033] Specifically, in the embodiments of this utility model, the materials are carnallite and flotation reagent, the flotation reagent is octadecylamine hydrochloride, and the present application adopts a cold crystallization-positive flotation process. The flotation reagent makes the surface of potassium chloride hydrophobic, so that potassium chloride can be separated from carnallite. Since the surface of potassium chloride is hydrophobic, potassium chloride can adhere to the bubbles and be discharged through the liquid outlet 11, while carnallite is discharged through the solid outlet 28.

[0034] Preferably, in an embodiment of the present invention, the shell 76 is a cylinder, the radial direction of the mineralization channel is the radial direction of the cylinder, and the radial direction of the mineralization channel is perpendicular to the extension direction of the mineralization channel.

[0035] like Figures 2 to 6 As shown in the embodiment of this utility model, the first through hole 721 is located at the center of the first separator 72, and there are multiple second through holes 731, which are arranged at intervals along the circumference of the second separator 73.

[0036] In the above technical solution, since the first through hole 721 is located at the center of the first partition 72 and the multiple second through holes 731 are arranged at intervals along the circumference of the second partition 73, the material and air can flow from the first feed inlet 71 through the first through hole 721 to the second partition 73, and then be dispersed through the multiple second through holes 731 to the cross-section of the entire mineralization channel. The material and air can be continuously mixed in the mineralization channel, thereby performing pre-flotation in the mineralization channel, which can improve the flotation effect of the material.

[0037] Preferably, in an embodiment of the present invention, there are four second through holes 731.

[0038] like Figure 2 , Figure 3 and Figure 5As shown, in the embodiment of the utility model, one first partition piece 72 is arranged between the first one of the plurality of second partition pieces 73 and the first feed port 71, and one first partition piece 72 is arranged between the last one of the plurality of second partition pieces 73 and the first discharge port 75, the first feed port 71 is in communication with the first through hole 721, and the first discharge port 75 is in communication with the first through hole 721.

[0039] If the first one of the plurality of second partition pieces 73 directly contacts the inner wall of the shell provided with the first feed port 71, since the plurality of second through holes 731 are arranged along the circumference of the second partition piece 73, the plurality of second through holes 731 will be misaligned with the first feed port 71, and the second partition piece 73 will block the material and air in the first feed port 71, so that the material and air cannot enter the mineralization channel from the first feed port 71, thereby failing to achieve the effect of pre-flotation. Therefore, in the embodiment, one first partition piece 72 is arranged between the first one of the plurality of second partition pieces 73 and the first feed port 71, and the first through hole 721 is in communication with the first feed port 71, so that the material and air can enter the space between the first partition piece 72 and the second partition piece 73 from the first through hole 721, and then enter the plurality of second through holes 731, thereby enabling the material and air to enter the mineralization channel. Similarly, if the last one of the plurality of second partition pieces 73 directly contacts the inner wall of the shell provided with the first discharge port 75, since the plurality of second through holes 731 are arranged along the circumference of the second partition piece 73, the plurality of second through holes 731 will be misaligned with the first discharge port 75, and the second partition piece 73 will block the material and air in the mineralization channel, so that the material and air are difficult to discharge from the first discharge port 75, thereby failing to achieve the effect of re-flotation. Therefore, in the embodiment, one first partition piece 72 is arranged between the last one of the plurality of second partition pieces 73 and the first discharge port 75, so that the material in the plurality of second through holes 731 can first enter the space between the first partition piece 72 and the second partition piece 73, and then the material and air can enter the reaction chamber from the first through hole 721 through the second feed port for re-flotation.

[0040] Specifically, in the embodiment of the utility model, the number of first partition pieces 72 is one more than that of second partition pieces 73.

[0041] As Figures 2 to 4As shown in the embodiment of this utility model, the first separator 72 includes a first cylindrical section 722, a second cylindrical section 723, and a third cylindrical section 724 connected in sequence. The inner diameter of the first cylindrical section 722 and the third cylindrical section 724 are both larger than the inner diameter of the second cylindrical section 723. The orthographic projections of the first feed port 71 and the plurality of second through holes 731 on the first separator 72 are all inside the first cylindrical section 722, and the orthographic projections of the first discharge port 75 and the plurality of second through holes 731 are all inside the third cylindrical section 724.

[0042] In the above technical solution, since the orthographic projections of the first feed inlet 71 and the multiple second through holes 731 on the first partition 72 are both inside the first cylinder section 722, the first feed inlet 71 and the multiple second through holes 731 can be connected to the first cylinder section 722. Furthermore, the orthographic projections of the first discharge outlet 75 and the multiple second through holes 731 are both inside the third cylinder section 724, allowing the first discharge outlet 75 and the multiple second through holes 731 to be connected to the third cylinder section 724. This enables the material to flow through the first feed inlet 71, the multiple first partitions 72, and the multiple second partitions 73 to the first discharge outlet 75, facilitating the mixing of the material and air within the mineralization channel, so that the material and air can undergo preliminary flotation within the pre-mineralization section 7.

[0043] Preferably, in an embodiment of the present invention, the inner diameter of the first cylindrical section 722 is equal to the inner diameter of the second cylindrical section 723.

[0044] In one embodiment, the diameter of the first feed inlet 71 is equal to the diameter of the mineralization channel.

[0045] like Figure 2 As shown in the embodiment of the present invention, the housing 76 includes a first housing and a second housing arranged radially along the mineralization channel. The first housing and the second housing are used to enclose the mineralization channel, and the first housing and the second housing are detachably connected.

[0046] In the above technical solution, the detachable shell design greatly simplifies the maintenance process of the pre-mineralization section 7. Operators can easily disassemble the first shell or the second shell without damaging the structure of the pre-mineralization section 7 to clean the first partition 72 or the second partition 73 inside the mineralization channel, so as to avoid blockage of the mineralization channel.

[0047] Specifically, in embodiments of this utility model, the first housing and the second housing are connected by a flange, such as... Figure 2 As shown, the first housing and the second housing along Figure 2 The vertical arrangement is symmetrical.

[0048] like Figure 1 and Figure 2As shown in the embodiment of this utility model, the pre-mineralization flotation device further includes a feeding section 8, which is disposed in the reaction chamber. The feeding section 8 is provided with a feed chamber and a plurality of discharge holes that are all connected to the feed chamber. The plurality of discharge holes are spaced apart on the circumferential sidewall of the feeding section 8. A first feed pipe 31 is provided, one end of which is connected to a first discharge port 75, and the other end of the first feed pipe 31 extends into the reaction chamber through a second feed port and is connected to the feed chamber of the feeding section 8.

[0049] In the above technical solution, the material that has undergone preliminary flotation enters the feeding chamber of the feeding section 8 through the first discharge port 75 and the first feed pipe 31, and enters the reaction chamber through multiple discharge holes of the feeding section 8. Compared with the discharge holes being located at the bottom of the feeding section 8, by arranging multiple discharge holes at intervals around the periphery of the feeding section 8, the material will come into contact with the inner wall of the reaction section 1 and sink to the bottom of the reaction section 1 under the action of gravity, thereby further increasing the reaction time of the material in the reaction chamber and improving the flotation effect.

[0050] Specifically, in the embodiments of this utility model, the feeding part 8 is cylindrical, and the feeding part 8 is provided with a feeding hole. Along the periphery of the feeding part 8, there are four discharge holes.

[0051] like Figure 1 As shown in the embodiment of the present invention, the reaction part 1 includes a main body with an opening, a reaction chamber is formed inside the main body, and a solid outlet 28 is provided on the main body; the bubble collecting part 10 is covered by the opening of the main body, the bubble collecting part 10 is provided with a collecting chamber and a liquid outlet 11 communicating with the collecting chamber, the opening is communicating with the collecting chamber, and the liquid outlet 11 is located below the opening.

[0052] In the above technical solution, the material that has undergone preliminary flotation enters the reaction chamber through the first feed pipe 31. The bubble generating component introduces air into the reaction chamber of the reaction section 1 to generate bubbles. In this way, potassium chloride in the material will adhere to the bubbles (due to the hydrophobicity of potassium chloride) and flow through the collection chamber of the bubble collecting section 10 to the liquid outlet 11 under the action of buoyancy. The solids in the material are discharged through the solid outlet 28 so that the material can complete the second flotation.

[0053] like Figure 8 and Figure 9As shown, in the embodiment of the utility model, bubble collecting part 10 includes collecting main body 101, is the tubular structure with internal through hole, guide plate 100 is arranged at the bottom end of tubular structure, and guide plate 100 is located at the outer periphery of main body and is sealedly connected with main body, at least part of guide plate 100 is located below the opening, at least part of guide plate 100 is arranged obliquely relative to main body, along the radial direction of tubular structure, guide plate 100 has oppositely arranged first side and second side, second side is provided with liquid outlet 11 and guide plate 100 extends to liquid outlet 11, and first side is higher than second side.

[0054] In the above technical scheme, the material after preliminary flotation enters the reaction chamber through the first feed pipe 31, the bubble generating assembly introduces air into the reaction chamber of the reaction part 1, so that bubbles are generated, in this way, potassium chloride in the material will adhere to the bubbles (hydrophobicity of potassium chloride), and under the action of buoyancy and overflow through the opening, into the internal through hole of the bubble collecting part 10, and then flows to the guide plate 100 under the action of gravity, since the guide plate 100 is arranged obliquely relative to the main body, the bubbles can flow smoothly along the guide plate 100 to the liquid outlet 11 (from the first side to the second side), in this way, the phenomenon that the bubbles accumulate in the bubble collecting part 10 can be avoided, thereby improving the flotation efficiency.

[0055] Specifically, in the embodiment of the utility model, under the action of gravity, the bubbles can flow to the liquid outlet 11 by themselves under the guidance of the guide plate 100, without the need for an additional power device to push the bubbles, thereby reducing the energy consumption of the pre-mineralization flotation device.

[0056] Specifically, in the embodiment of the utility model, the guide plate 100 includes a guide main plate 102 and a mounting plate 103, the mounting plate 103 is located at the outer periphery of the opening, the mounting plate 103 is sealedly connected with the opening, and the guide main plate 102 is arranged obliquely relative to the opening.

[0057] Specifically, in the embodiment of the utility model, Figure 9 The left-right direction or the front-rear direction in the above formula is the radial direction of the tubular structure, that is, the liquid outlet 11 can be arranged at the right side or the rear side, etc.

[0058] In one embodiment, from the first side to the second side of the guide plate 100, the distance between the guide plate 100 and the opening is equal.

[0059] In the prior art, in the process of flotation, potassium chloride will be adsorbed on the bubbles, the bubbles move to the top of the reaction chamber, and are discharged through the liquid outlet 11, and the carnallite settles under the action of gravity and is discharged through the solid outlet 28, but some carnallite crystals will adhere to the bubbles, in this way, the carnallite is difficult to discharge from the solid outlet 28, therefore, as Figure 1As shown, in the embodiment of the utility model, the pre-mineralization flotation device further includes a spraying part, the spraying part has a spraying member 9, the spraying member 9 is located at the side of the bubble collecting part 10 away from the reaction part 1, the spraying member 9 is provided with a spherical wall surface on the side facing the bubble collecting part 10, and a plurality of spraying holes are arranged on the spherical wall surface.

[0060] In the above technical solution, on the one hand, the mother liquor sprayed by the plurality of spraying holes of the spraying part can exert a circumferential pushing force on the bubbles at the opening, so that the bubbles are accelerated to overflow from the opening into the bubble collecting part 10, thereby reducing the residence time of the bubbles in the reaction chamber, and avoiding the problem of reduced flotation efficiency caused by the over-thick bubble layer; on the other hand, the plurality of spraying holes of the spraying part can break the bubbles, so that the carnallite crystals adhered by the bubbles can re-settle to the bottom of the reaction chamber and be discharged through the solid outlet 28, and the bubbles are discharged through the liquid outlet 11.

[0061] Specifically, in the embodiment of the utility model, the side of the spraying part facing the reaction chamber is in the shape of a spherical cap, and the liquid sprayed by the spraying part is the mother liquor.

[0062] As shown in the drawings, Figure 1 As shown, in the embodiment of the utility model, the mixing member 2 has a mixing chamber, a third feed inlet, a liquid inlet and a second discharge outlet which are in communication with the mixing chamber; a stirring piece is arranged on the mixing member 2, the stirring piece includes a motor 4, a rotating shaft 3 connected with the output shaft of the motor 4 and a stirring impeller connected to the outer periphery of the rotating shaft 3, the rotating shaft 3 is rotatably arranged relative to the mixing member 2, and the stirring impeller is located in the mixing chamber; a second feed pipeline 17, the first end of the second feed pipeline 17 is in communication with the second discharge outlet, the second end of the second feed pipeline 17 is in communication with the first feed inlet, and the first pump body 5 is arranged on the second feed pipeline 17; a first gas source 6; a first air inlet pipeline 30, one end of the first air inlet pipeline 30 is in communication with the first gas source 6, and the other end of the first air inlet pipeline 30 is in communication with the second feed pipeline 17.

[0063] In the above technical solution, the flotation reagent enters the mixing chamber through the liquid inlet, the carnallite enters the mixing chamber through the third feed inlet, and the motor drives the stirring impeller to rotate through the rotating shaft 3, so that the carnallite and the flotation reagent can be fully mixed, the mixed carnallite and flotation reagent enter the second feed pipeline 17 under the action of the first pump body 5 through the second discharge outlet, and the gas provided by the first gas source 6 is introduced into the second feed pipeline 17 through the first air inlet pipeline 30, so that the carnallite, the gas and the flotation reagent can be mixed in the second feed pipeline 17.

[0064] Specifically, in the embodiment of the utility model, the first gas source 6 is an air compressor, and the first gas source 6 is used for introducing air into the second feed pipeline 17.

[0065] As shown in the drawings, Figure 1 andFigure 7 As shown, the pre-mineralization flotation device includes a reaction part 1, having a reaction cavity, and a fourth feeding port, a solid outlet 28 and a liquid outlet 11 all communicating with the reaction cavity, the fourth feeding port being capable of feeding materials; a main bubble generating assembly 32 for feeding air into the reaction part 1; an auxiliary bubble generating assembly, including an air inlet part 33, a second feeding part 34 and a plurality of bubble generating parts 23, the plurality of bubble generating parts 23 being arranged along the circumference of the reaction part 1, the bubble generating part 23 having a bubble generating channel, and a fifth feeding port 231, an air inlet 232 and a third discharge port 235 all communicating with the bubble generating channel, the second feeding part 34 being used for connecting the reaction cavity and the plurality of fifth feeding ports 231, the air inlet part 33 being used for feeding air into the plurality of air inlets 232, and the plurality of third discharge ports 235 all communicating with the reaction cavity, and the diameter of at least part of the bubble generating channel being smaller than the diameter of the fifth feeding port 231.

[0066] In the above technical solution, the materials enter the reaction part 1 through the fourth feeding port for reaction, the main bubble generating assembly 32 is arranged to feed air into the reaction part 1 to generate bubbles for flotation of the materials, and the auxiliary bubble generating assembly is additionally arranged, air enters the bubble generating channel of the bubble generating part 23 through the air inlet 232, and the materials enter the bubble generating channel of the bubble generating part 23 from the reaction cavity through the fifth feeding port 231, the air and the materials are mixed in the bubble generating channel, and since the diameter of at least part of the bubble generating channel is smaller than the diameter of the fifth feeding port 231, the air, carnallite and flotation reagents can be accelerated to pass through the relatively narrow bubble generating channel, the air is sheared into small-diameter bubbles in the bubble generating channel, so that the air, carnallite and flotation reagents can be fully mixed in the bubble generating channel to generate small-diameter bubbles smaller than the large-diameter bubbles generated by the main bubble generating assembly, and the small-diameter bubbles and the materials flow into the reaction cavity through the third discharge port 235. Thus, compared with the case where only the main bubble generating assembly 32 is arranged to feed air into the reaction part 1 to generate bubbles, in the embodiment, the main bubble generating assembly can generate large-diameter bubbles with a larger diameter, the auxiliary bubble generating assembly can generate small-diameter bubbles with a smaller diameter, the materials and the two kinds of bubbles can be fully mixed in the reaction cavity, and the two kinds of bubbles can float different volumes of carnallite to improve the flotation effect and thus improve the flotation efficiency.

[0067] Further, in the embodiment of the utility model, the small-diameter bubbles generated by the bubble generating part 23 can contact the carnallite with a smaller volume in the reaction cavity, the small-diameter bubbles float the carnallite with a smaller volume, and the main bubble generating assembly 32 can float the carnallite with a larger volume, so that the flotation efficiency of the carnallite can be further improved to improve the processing capacity and working efficiency of the pre-mineralization flotation device.

[0068] Specifically, in the embodiment of the present application, the small-diameter bubbles generated by the auxiliary bubble generating assembly are relative to the bubbles generated by directly introducing air into the reaction cavity, and the diameter of the small-diameter bubbles is smaller than the diameter of the large-diameter bubbles generated by directly introducing air into the reaction part 1, for example, the diameter of the bubbles generated by the auxiliary bubble generating assembly is smaller than the diameter of the bubbles generated by the main bubble generating assembly 32, which can enhance the contact between the small-diameter bubbles and the carnallite particles, especially for fine carnallite, they are more easily adsorbed by small-diameter bubbles, thereby improving the flotation efficiency and ensuring that finer carnallite particles can also be effectively recovered.

[0069] Specifically, in the embodiment of the present application, potassium chloride can be attached to the two kinds of bubbles and discharged through the liquid outlet 11, and the carnallite particles are discharged through the solid outlet 28.

[0070] As shown in Figure 1 and Figure 7 , in the embodiment of the present application, the bubble generating part 23 includes a support pipe 233 having a first chamber, a feed pipe 234, the feed pipe 234 is arranged in the first chamber, the inside of the feed pipe 234 forms a bubble generating channel, the bubble generating channel includes a first channel 2341, a second channel 2342 and a third channel 2343 connected in series, from the first channel 2341 to the third channel 2343, the diameter of the first channel 2341 decreases, from the first channel 2341 to the third channel 2343, the diameter of the third channel 2343 increases, the diameter of the first channel 2341 and the diameter of the third channel 2343 are both greater than the inner diameter of the second channel 2342, and the first channel 2341 is in communication with the fifth feed port 231.

[0071] In the technical scheme, air enters the feeding pipe 234 through the air inlet 232, and the material enters the feeding pipe 234 through the fifth feeding inlet 231, and the air and the material are mixed in the bubble generating channel, the flow rate of the air and the material in the first channel 2341 is increased due to the decrease of the diameter from the first channel 2341 to the second channel 2342, and the air is sheared into smaller bubbles, so that small-diameter bubbles can be generated, and the flow rate of the air and the material in the bubble generating channel is reduced due to the increase of the diameter of the third channel 2343 during the flow of the air and the material from the second channel 2342 to the third channel 2343, so that the stability of the small-diameter bubbles is facilitated, and the phenomenon of the breakage of the small-diameter bubbles is reduced, and the utilization efficiency of the small-diameter bubbles is improved, and the small-diameter bubbles and the material flow to the reaction cavity through the third discharge outlet 235, so that the small-diameter bubbles can contact the small-volume carnallite in the reaction cavity to float the small carnallite in the reaction cavity, and the main bubble generating assembly 32 can float the large-volume carnallite, so that the floatation efficiency of the carnallite is further improved, and the processing capacity and the working efficiency of the pre-mineralization floatation device are improved.

[0072] Specifically, as shown in Figure 7 The first plane intersecting the axis of the first channel 2341 and the inner wall surface of the first channel 2341 form a first intersection line and a second intersection line, the included angle between the first intersection line and the second intersection line is β, and the value of β is 15° to 30°.

[0073] Specifically, in the embodiment of the utility model, from the first channel 2341 to the third channel 2343, the support pipe 233 has oppositely arranged first end and second end, the first end of the support pipe 233 is equipped with the first flange 2331, the second end of the support pipe 233 is equipped with the second flange 2332, the bubble generating part 23 still includes the discharge pipe 238, from the first channel 2341 to the third channel 2343, the discharge pipe 238 has oppositely arranged first end and second end, the first end of the discharge pipe 238 is equipped with the third flange 2333, the second end of the discharge pipe 238 forms the third discharge outlet 235, the second flange 2332 and the third flange 2333 are connected through bolt, so that the support pipe 233 and the discharge pipe 238 can be connected together, and the inner diameter of the discharge pipe 238 is same with the inner diameter of the end of the third channel 2343 away from the first flange 2331.

[0074] Specifically, in the embodiment of the utility model, the feeding pipe 234 and the support pipe 233 are detachably connected, so that when too much material is attached to the inside of the feeding pipe 234, the feeding pipe 234 can be detached from the support pipe 233 for cleaning, so as to avoid the blockage of the bubble generating channel in the inside of the feeding pipe 234.

[0075] AsFigure 7 As shown in the embodiment of the present invention, the support tube 233 also has a second chamber that communicates with the first chamber. The second chamber is provided with a first pipe 236 and a second pipe 237 at the end away from the first chamber. The inlet of the first pipe 236 forms a fifth feed port 231, and the inlet of the second pipe 237 forms an air inlet 232.

[0076] In the above technical solution, air enters the first chamber through the air inlet 232, and material enters the first chamber from the reaction chamber through the fifth feed inlet 231. The material and air are mixed in the first chamber, so that the air and material can come into full contact before entering the bubble generation channel, thereby generating small-diameter bubbles more effectively.

[0077] Specifically, in the embodiments of this utility model, the first pipe 236 and the second pipe 237 are arranged at an angle, which can improve the mixing effect.

[0078] Specifically, in the embodiments of this utility model, the first pipe 236 has a first end and a second end that are arranged opposite to each other. The first end of the first pipe 236 forms a fifth feed port 231, and the second end of the first pipe 236 extends into the first chamber. A fourth flange 2334 is provided on the first end of the first pipe 236. The first flange 2331 and the fourth flange 2334 are connected by bolts. In this way, the first pipe 236 and the support pipe 233 can be connected together.

[0079] like Figure 7 As shown in the embodiment of this utility model, in the direction from the first channel 2341 to the third channel 2343, the inner diameter of at least a portion of the first pipe 236 gradually decreases.

[0080] With the above settings, the reduction in the inner diameter of the first pipe 236 will increase the flow rate of the material in the first pipe 236. This allows the carnallite to fully contact and mix with the reagent, further improving the surface properties of the carnallite and making it easier for it to combine with small-diameter bubbles, thereby improving the flotation effect.

[0081] Specifically, in the embodiments of this utility model, the first pipeline 236 includes a first pipe segment and a second pipe segment that are connected to each other and set at an angle. A second plane passing through the axis of the first pipeline 236 intersects the inner wall surface of the second pipe segment to form a third intersection line and a fourth intersection line. The included angle between the third intersection line and the fourth intersection line is α, and the value range of α changes from 30° to 15°.

[0082] Specifically, the embodiment of the utility model, bubble generating part 23 still include the limit ring 239 in the support pipe 233, with the first chamber and the second chamber are divided to the inside of support pipe 233, the inside through -hole on limit ring 239 is used to communicate the first chamber and the second chamber, and through setting limit ring 239, can play the function of limiting to the material conveying pipe 234, thereby avoid the phenomenon that material conveying pipe 234 shakes in support pipe 233, the inside diameter of limit ring 239 is same with the import inside diameter of first channel 2341.

[0083] As Figure 1 Indicated in the embodiment of the utility model, air inlet part 33 includes: second gas source 12;Second air inlet pipeline 13, one end of second air inlet pipeline 13 communicates with second gas source 12, the other end of second air inlet pipeline 13 communicates with air inlet 232.

[0084] In the above technical scheme, air is by second gas source 12 through second air inlet pipeline 13 enters into the first chamber through air inlet 232, like this, can provide air for bubble generating part 23.

[0085] Specifically, the embodiment of the utility model, second gas source 12 is air compressor.

[0086] As Figure 1 Indicated in the embodiment of the utility model, air inlet part 33 still includes first annular pipeline 14, is set up in the outer periphery of reaction part 1, along the circumference of first annular pipeline 14, first annular pipeline 14 is equipped with a plurality of first air outlet hole 15, second air inlet pipeline 13 communicates with first annular pipeline 14;Multiple third air inlet pipeline 16, multiple third air inlet pipeline 16 are correspondingly set up with multiple first air outlet hole 15, multiple bubble generating part 23 are correspondingly set up with multiple third air inlet pipeline 16, one end of each third air inlet pipeline 16 communicates with corresponding first air outlet hole 15, the other end of each third air inlet pipeline 16 communicates with corresponding air inlet 232.

[0087] In the above technical scheme, air is by second gas source 12 through second air inlet pipeline 13 into first annular pipeline 14, air is then by multiple first air outlet hole 15 through multiple third air inlet pipeline 16 into multiple bubble generating part 23, after the mixture of material and air in multiple bubble generating part 23, material and air are introduced into reaction part 1 from multiple angles on the circumference of reaction part 1, like this, can improve the mixing effect of material and air, make the bubble in reaction part 1 more rich, uniform, to improve the flotation effect.

[0088] Specifically, in the embodiment of the utility model, since the plurality of bubble generating parts 23 are correspondingly arranged with the plurality of third air inlet pipelines 16, and the plurality of bubble generating parts 23 are symmetrically arranged relative to the reaction part 1, on the one hand, when a certain bubble generating part 23 fails or needs to be cleaned, the certain bubble generating part 23 can be cleaned individually without affecting the operation of the whole pre-mineralization flotation device, on the other hand, the symmetric arrangement of the plurality of bubble generating parts 23 can make the feeding more uniform, so that the probability of turbulence occurring in the reaction cavity can be reduced.

[0089] As shown in the figure, in the embodiment of the utility model, the second feeding part 34 comprises a first discharge pipeline 19, one end of the first discharge pipeline 19 is communicated with the reaction part 1, and the other end of the first discharge pipeline 19 is communicated with a fifth feeding port 231; a second pump body 18 is arranged on the first discharge pipeline 19. Figure 1

[0090] In the above technical scheme, under the action of the second pump body 18, the material in the reaction part 1 enters the first cavity through the fifth feeding port 231 by the first discharge pipeline 19, the air enters the first annular pipeline 14 through the second air source 12 by the second air inlet pipeline 13, and the air enters the plurality of bubble generating parts 23 through the plurality of third air inlet pipelines 16 by the plurality of first air outlet holes 15, the material and the air in the plurality of bubble generating parts 23 are mixed, and the material and the air are introduced into the reaction part 1 from multiple angles in the circumferential direction of the reaction part 1, so that the mixing effect of the material and the air can be improved, so that the bubbles in the reaction part 1 are more abundant and uniform, and the flotation effect is improved.

[0091] Specifically, in the embodiment of the utility model, the second pump body 18 is a centrifugal pump.

[0092] As shown in the figure, in the embodiment of the utility model, the second feeding part 34 further comprises: a second annular pipeline 20 arranged on the outer periphery of the reaction part 1, a plurality of liquid outlet holes 21 are arranged on the second annular pipeline 20 in the circumferential direction of the second annular pipeline 20, and the other end of the first discharge pipeline 19 is communicated with the second annular pipeline 20; a plurality of third feeding pipelines 22, the plurality of third feeding pipelines 22 are correspondingly arranged with the plurality of liquid outlet holes 21, the plurality of bubble generating parts 23 are correspondingly arranged with the plurality of third feeding pipelines 22, one end of each third feeding pipeline 22 is communicated with the corresponding liquid outlet hole 21, and the other end of each third feeding pipeline 22 is communicated with the corresponding fifth feeding port 231. Figure 1

[0093] ​​In the above technical solution, the material in the reaction section 1 enters through the first discharge pipe 19 and multiple liquid outlet holes 21 on the second annular pipe 20 into multiple third feed pipes 22, and then enters multiple bubble generating sections 23 through the multiple third feed pipes 22. After the material and air in the multiple bubble generating sections 23 are mixed, the material and air are introduced into the reaction section 1 from multiple angles in the circumferential direction. In this way, the mixing effect of the material and air can be improved, making the bubbles in the reaction section 1 more abundant and uniform, thereby improving the flotation effect.

[0094] Specifically, in the embodiments of this utility model, the pre-mineralization flotation device further includes multiple feed pipes. The reaction section 1 is provided with multiple feed holes 24 communicating with the reaction chamber. The multiple feed pipes are correspondingly arranged with multiple bubble generating sections 23, and the multiple feed holes 24 are correspondingly connected with the multiple feed pipes. In this way, the small-diameter bubbles generated by the bubble generating section and the material can enter the reaction chamber through the third discharge port 235 through the corresponding feed pipes and the corresponding feed holes 24. The small-diameter bubbles can contact the small-volume carnallite in the reaction chamber to float the fine carnallite in the reaction chamber. The main bubble generating component 32 can float the larger-volume carnallite. In this way, the flotation efficiency of carnallite can be further improved, thereby improving the processing capacity and working efficiency of the pre-mineralization flotation device.

[0095] like Figure 1 As shown in the embodiment of this utility model, the main bubble generating component 32 includes: a third gas source 25; a fourth air inlet pipe 26, one end of which is connected to the third gas source 25; and a bubble generating component 27 located in the reaction chamber, the other end of which extends into the reaction chamber and is connected to the bubble generating component 27, which is used to generate bubbles.

[0096] In the above technical solution, air enters the bubble generator 27 from the third air source 25 through the fourth air inlet pipe 26. The bubble generator 27 can introduce air into the reaction chamber to generate bubbles. The small-diameter bubbles generated by the multiple bubble generating parts 23 and the bubbles generated by the bubble generator 27 rise in the reaction chamber. The two types of bubbles come into countercurrent contact with the descending carnallite. In this way, the carnallite in the reaction chamber can be floated to further improve the flotation efficiency of carnallite, thereby improving the processing capacity and working efficiency of the pre-mineralization flotation device.

[0097] Specifically, in the embodiments of this utility model, the third air source 25 is an air compressor.

[0098] Specifically, in the embodiments of this utility model, the diameter of the bubble generated by the bubble generating member 27 is greater than the diameter of the bubble generated by the bubble generating part 23.

[0099] Specifically, in the embodiment of the present application, potassium chloride can be attached to two kinds of bubbles, potassium chloride is discharged through liquid outlet 11, and carnallite is discharged through solid outlet 28.

[0100] As shown in the embodiment of the present application, the bubble generating member 27 has an air inlet chamber, the cross section of the air inlet chamber gradually decreases from bottom to top, the bubble generating member 27 is provided with a plurality of second air outlet holes in communication with the air inlet chamber, and the fourth air inlet pipeline 26 is in communication with the air inlet chamber. Figure 1 Figure 1

[0101] In the above technical solution, air enters the reaction cavity through the plurality of second air outlet holes of the bubble generating member 27, so as to generate bubbles, the small-diameter bubbles generated by the plurality of bubble generating portions 23 and the large-diameter bubbles generated by the bubble generating member 27 rise in the reaction cavity, and the two kinds of bubbles are countercurrently contacted with the descending carnallite, so that the carnallite with different volumes in the reaction cavity can be subjected to flotation.

[0102] Specifically, in the embodiment of the present application, the bubble generating member 27 is a conical structure, the bottom surface of the cone is provided with a third air inlet, and one or more layers of microporous ceramic plates are arranged on the conical surface as the second air outlet holes. Since the surface area of the cone is large, more bubbles can be generated. The pore diameter of the microporous ceramic plate is 10-100 μm, and the axis of the bubble generating member 27 coincides with the axis of the reaction portion 1.

[0103] Specifically, in the embodiment of the present application, since the bubble generating member 27 is a conical structure, compared with the flat plate structure air inlet in the prior art, the carnallite particles can slide from the conical surface to the solid outlet 28 under the action of gravity, so that the phenomenon of carnallite being blocked in the second air outlet hole during the settling process can be avoided.

[0104] ​Specifically, in the embodiment of the utility model, through setting pre mineralization part 7, can make gas, liquid, solid contact opportunity increase, further improve the mixture of carnallite, flotation reagent and air, help the floating of coarse grain of carnallite, improve the flotation effect, through changing the original axial feeding mode into radial feeding mode, increase the residence time of material in the reaction cavity in the same space, spray part carries out secondary enrichment while being able to speed up the bubble flow into bubble collection part 10, increase the flotation efficiency, adopt the mode of main bubble generating assembly 32 and auxiliary bubble generating assembly and optimize the foaming position flotation column structure to increase the bubble density and distribution uniformity in the reaction cavity, through the design of detachable feed pipe 234 in the support pipe 233 of bubble generating part 23, make the small diameter bubbles generated by the whole bubble generating part 23 increase, and it is convenient to replace after its abrasion, the main bubble generating assembly 32 located in the lower part of the reaction cavity adopts conical structure to increase the bubble amount while reducing the blocking probability of main bubble generating assembly 32, improve the work efficiency, the above beneficial effects improve the processing capacity of reaction part 1, improve the work efficiency, effectively improve the flotation effect of reaction part 1 through the method such as pre-treatment of carnallite, change the feeding mode of feeding part 8, optimize main bubble generating assembly 32, auxiliary bubble generating assembly and spray part.

[0105] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: by setting the pre-mineralization part, the material and air enter the mineralization channel through the first feed port, through the alternating arrangement of the first and second partitions and the staggered arrangement of the first and second through holes, the material and air can be mixed and dispersed multiple times in the pre-mineralization part, thereby increasing the contact time and contact area of the material and air, the material can be preliminarily floated in the pre-mineralization part, the material after preliminary flotation enters the reaction part for re-flotation, the solid in the material after re-flotation is discharged through the solid outlet, and the liquid in the material is discharged through the liquid outlet. Compared with the prior art of directly introducing material and air into the pre-mineralization pipeline, in the embodiment, the material and air can be concentrated through the first through hole to the second partition and dispersed through multiple second through holes to the cross section of the entire mineralization channel, and then concentrated through the first through hole to the second partition and dispersed through multiple second through holes to the cross section of the entire mineralization channel. In this way, the material and air can be continuously mixed in the mineralization channel and pre-flotation in the mineralization channel, thereby improving the flotation effect of the material.

[0106] The above description is only the preferred embodiment of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pre-mineralized flotation device, characterized in that, The pre-mineralization floatation device comprises: a feeding part; a pre-mineralization part (7) comprising a shell (76) and a plurality of first partitions (72) and a plurality of second partitions (73) located in the shell (76), the shell (76) has a mineralization channel, a first feeding port (71) and a first discharging port (75) communicating with the mineralization channel, the feeding part is used for feeding materials and air into the first feeding port (71), the first partitions (72) are provided with first through holes (721), the second partitions (73) are provided with second through holes (731), along the radial direction of the mineralization channel, the first through holes (721) and the second through holes (731) are arranged in a staggered manner, along the extension direction of the mineralization channel, the first partitions (72) and the second partitions (73) are arranged alternately in the mineralization channel, and there is a spacing between the first through holes (721) and the second through holes (731), the radial direction of the mineralization channel and the extension direction are arranged at an angle; a reaction part (1) having a reaction chamber and a second feeding port, a solid outlet (28) and a liquid outlet (11) communicating with the reaction chamber, the first discharging port (75) is used for feeding mixed materials and air into the second feeding port; an air bubble generating assembly for feeding air into the reaction part (1) to generate air bubbles in the reaction chamber.

2. The pre-mineralized flotation device of claim 1, wherein, The first through holes (721) are located at the center of the first partitions (72), and the second through holes (731) are a plurality of second through holes (731) arranged in a spaced manner along the circumferential direction of the second partitions (73).

3. The pre-mineralized flotation device of claim 2, wherein, There is one first partition (72) between the first feeding port (71) and the first second partition (73) of the plurality of second partitions (73), and there is one first partition (72) between the last second partition (73) of the plurality of second partitions (73) and the first discharging port (75), the first feeding port (71) and the first through holes (721) correspondingly communicate, and the first discharging port (75) and the first through holes (721) correspondingly communicate.

4. The premineralized flotation device according to any one of claims 1 to 3, characterized in that, The first partition (72) comprises a first cylinder segment (722), a second cylinder segment (723) and a third cylinder segment (724) connected in sequence, the inner diameter of the first cylinder segment (722) and the third cylinder segment (724) are both greater than the inner diameter of the second cylinder segment (723), the orthographic projection of the first feeding port (71) and the plurality of second through holes (731) on the first partition (72) is in the interior of the first cylinder segment (722), and the orthographic projection of the first discharging port (75) and the plurality of second through holes (731) is in the third cylinder segment (724).

5. The premineralized flotation device according to any one of claims 1 to 3, characterized in that, The shell (76) comprises a first shell and a second shell arranged along the radial direction of the mineralization channel, the first shell and the second shell are used for enclosing the mineralization channel, and the first shell and the second shell are detachably connected.

6. The premineralized flotation device of any one of claims 1 to 3, wherein, The pre-mineralization floatation device further comprises: A feeding part (8) is arranged in the reaction chamber, and the feeding part (8) is provided with a feeding chamber and a plurality of discharge holes in communication with the feeding chamber, and the plurality of discharge holes are arranged at the circumferential side wall of the feeding part (8) in a spaced manner; A first feeding pipeline (31) is in communication with the first discharge port (75) at one end, and the other end of the first feeding pipeline (31) is in communication with the feeding chamber of the feeding part (8) in the reaction chamber through the second feeding port.

7. The premineralized flotation device of any one of claims 1 to 3, wherein, The reaction part (1) comprises: A main body having an opening, and the reaction chamber is formed inside the main body, and the solid outlet (28) is arranged on the main body; A bubble collecting part (10) is arranged on the opening of the main body, and the bubble collecting part (10) is provided with a collecting cavity and a liquid outlet (11) in communication with the collecting cavity, the opening is in communication with the collecting cavity, and the liquid outlet (11) is located below the opening.

8. A pre-mineralised flotation device according to claim 7, characterised in that, The bubble collecting part (10) comprises: A collecting main body (101) in a cylindrical structure having an internal through hole; A flow guide plate (100) is arranged at the bottom end of the cylindrical structure, and the flow guide plate (100) is located at the outer periphery of the main body and is sealingly connected with the main body, at least part of the flow guide plate (100) is located below the opening, at least part of the flow guide plate (100) is arranged obliquely relative to the main body, along the radial direction of the cylindrical structure, the flow guide plate (100) has oppositely arranged first and second sides, the second side is provided with the liquid outlet (11), and the first side is higher than the second side.

9. The pre-mineralized flotation device of claim 7, wherein, The pre-mineralization flotation device further comprises a spraying part, the spraying part has a spraying member (9), the spraying member (9) is located on the side of the bubble collecting part (10) away from the reaction part (1), the spraying member (9) is provided with a spherical wall surface on the side facing the bubble collecting part (10), and a plurality of spraying holes are arranged on the spherical wall surface.

10. The premineralized flotation device of any one of claims 1 to 3, wherein, The feeding part comprises: A mixing member (2) having a mixing chamber, a third feeding port, a liquid inlet and a second discharge port in communication with the mixing chamber; A stirring piece arranged on the mixing member (2), the stirring piece comprises a motor (4), a rotating shaft (3) connected with the output shaft of the motor (4) and a stirring impeller connected with the outer periphery of the rotating shaft (3), the rotating shaft (3) is rotatably arranged relative to the mixing member (2), and the stirring impeller is located in the mixing chamber; A second feeding pipeline (17), one end of the second feeding pipeline (17) is in communication with the second discharge port, the other end of the second feeding pipeline (17) is in communication with the first feeding port (71), and a first pump body (5) is arranged on the second feeding pipeline (17); A first gas source (6); A first air inlet pipeline (30), one end of the first air inlet pipeline (30) is in communication with the first gas source (6), and the other end of the first air inlet pipeline (30) is in communication with the second feeding pipeline (17).

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