CN109225657B - High concentration flotation device integrated equipment - Google Patents
High concentration flotation device integrated equipment Download PDFInfo
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- CN109225657B CN109225657B CN201811115328.2A CN201811115328A CN109225657B CN 109225657 B CN109225657 B CN 109225657B CN 201811115328 A CN201811115328 A CN 201811115328A CN 109225657 B CN109225657 B CN 109225657B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1406—Flotation machines with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
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Abstract
The invention discloses a high-concentration flotation machine complete equipment, which comprises 1 ore feeding flotation machine, a plurality of middling flotation machines and 1 tail flotation machine which are sequentially connected, wherein an ore pulp feeding pipe is tangentially fed to the upper side of the side face of an impeller in the ore feeding flotation machine from a tank body of the ore feeding flotation machine, the bottom flow of the ore feeding flotation machine is used as a middling tangent to be fed into the middling flotation machine, the bottom flow of the middling flotation machine is tangentially fed into the next middling flotation machine from the bottom of the last middling flotation machine, and the bottom flow of the last middling flotation machine is tangentially fed into the tail flotation machine from the bottom of the middling flotation machine; the multiple middling flotation machines are arranged in a staggered tangential feeding mode, impellers of the feeding flotation machines rotate clockwise, the first middling flotation machine connected with the middling flotation machines is anticlockwise, the next middling flotation machine connected with the middling flotation machines is clockwise, the middling flotation machines are arranged in a staggered mode in sequence, the feeding flowing direction is consistent with the rotation prevention line of the impellers, and the underflow discharge pipe is arranged along the radial direction of the tank body. Under the condition of high-concentration ore feeding, effective bubble dispersion, particle suspension, uniform ore distribution, collision of particles and bubbles, ore pulp concentration and the like in the monomer flotation machine are realized, the aim of high-concentration separation is realized, and the effects of saving water, saving medicaments, short flow configuration and energy consumption are finally achieved.
Description
Technical Field
The invention relates to a complete set of flotation machine, in particular to a complete set of high-concentration flotation machine.
Background
In the world, 90% of nonferrous metals and 50% of ferrous metals are treated by a flotation method. The flotation machine is one of the most important supports for realizing the flotation process. The flotation machine is a device which utilizes the difference of hydrophobicity and hydrophilicity of minerals under the condition of gas-liquid-solid three phases to realize collision, adhesion, transportation and final recovery of target minerals by air bubbles. The device mainly comprises a driving device, a stirring shaft system, an impeller, a stator and a tank body. The flotation machine mainly realizes the suspension of ore pulp, bubble dispersion and mineralization of collision of useful minerals and bubbles in a flotation tank through impeller stirring.
The ore specific gravity, the ore pulp concentration and the grinding fineness are important process parameters which are directly related to the ore property, the process flow and the flotation machine, and for the general separation flow of the sulfide ore, the separation flow is limited by the technical limit of the traditional flotation machine, and the maximum suitable separation concentration is generally between 35 and 45 percent. If the concentration is too large, the difficulty of air bubble separation is increased, the adhesion and collision of effective air bubbles and target mineral particles are difficult to realize, in order to improve the air bubble dispersion effect, more energy is often required to be input, and the strong stirring not only causes the increase of the falling probability of mineralized air bubbles, but also causes the great increase of the operating cost. The traditional flotation machine has large water consumption and large medicament consumption. If a technology suitable for a high-concentration (50% -65%) flotation machine is developed, the current situation of the existing ore dressing industry can be changed, the consumption of water resources is saved, and the development of mines in water-deficient areas is promoted.
In the prior art, the conventional flotation machine flow path is arranged along the operation concurrent flow, generally, the flotation machine flow path has two types of step configuration and horizontal configuration, and the feeding and discharging of the two types of configuration are generally arranged at the bottom of a flotation tank in a 180-degree straight line. The prior art flotation machines include:
in the inflatable flotation machine disclosed in the patent US5039400, the upper part of a tank body adopts a square lower part and adopts an arc-shaped structure, an impeller is arranged at the bottom of the flotation machine, feeding ore naturally flows in from the side wall of the tank body, and tailings are discharged from the lower part of the impeller at the symmetrical side of the feeding ore;
the cyclone flotation machine is not provided with an impeller stirring device, a tank body consists of a cylinder section and a conical section, partial underflow and feeding are combined and fed into the cyclone by an ore pulp pump at a certain speed, air is sucked by high-speed rotation of the ore pulp, and the ore pulp and air bubble mixture is discharged from a sand settling port of the cyclone and released in the tank body;
patent US 3393803 discloses a flotation machine, the square flat bottom structure of the cell body, the impeller is composed of upper and lower blades, the lower blade is for circulating the ore pulp at the bottom of the cell body of the flotation machine, the upper blade disperses the air, circulates the ore pulp sucked from the middle of the cell body of the flotation machine;
the flotation machine disclosed in patent CN 107413534A is specially used for sorting non-metallic minerals, generally adopts single-groove operation, and the bottom of a groove body is conical;
patent CN 107971143 a discloses a flotation machine, which adopts double impellers for stirring, a guide cylinder is arranged around the upper impeller, the tank body is a cylinder flat bottom structure, and feeding and discharging are carried out at the bottom of the tank body.
The prior art has the following disadvantages:
although the prior art has the stirring impeller, the structure designed for about 30% of the conventional ore pulp concentration cannot realize the separation flow field with different concentrations, namely the separation and separation of low-concentration air for feeding ore under the high-concentration condition. The feeding and discharging modes are generally distributed along a straight line, the concurrent collision mineralization of bubbles and target minerals is mainly realized in an impeller area, and the mainstream mineralization mode is single.
Patent US6095336 discloses a from inhaling air flotation machine, and the impeller is installed on the flotation machine upper portion, and the impeller bottom links to each other through the false bottom of draft tube with the tank bottom, and the false bottom constitutes radial ore pulp circulation passageway with the cell body, and the cell body is the flat structure of cylinder, and feeding and ore discharge are all in the cell body bottom, and the ore pulp of feeding passes through the passageway of false bottom and tank bottom under the suction effect of impeller, is carried cell body upper portion and is collided with the bubble by the draft tube. The patent depends on a middling pump to generate power sources for circulating ore pulp and sucking air, and has no stirring system, although the bottom of the tank body is a conical tank body, the tank body is only used as an ore pulp channel, and the configuration mode of a flotation machine is not embodied.
Disclosure of Invention
The invention aims to provide a high-concentration flotation machine complete device.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a high-concentration flotation machine complete device, which comprises 1 ore feeding flotation machine, a plurality of intermediate flotation machines and 1 tail flotation machine which are sequentially connected, wherein an ore pulp feeding pipe is tangentially fed to the upper side of the side surface of an impeller in the ore feeding flotation machine from a tank body of the ore feeding flotation machine, the bottom flow of the ore feeding flotation machine is tangentially fed into the intermediate flotation machine as intermediate ore, the bottom flow of the intermediate flotation machine is tangentially fed into the next intermediate flotation machine from the bottom of the previous intermediate flotation machine, and the bottom flow of the last intermediate flotation machine is tangentially fed into the tail flotation machine from the bottom of the intermediate flotation machine;
the multiple middling flotation machines are arranged in a staggered tangential feeding mode, impellers of the feeding flotation machines rotate clockwise, the first middling flotation machine connected with the feeding flotation machines is anticlockwise, the next middling flotation machine connected with the middling flotation machines is clockwise, the middling flotation machines are sequentially arranged in a staggered mode until the tailing flotation machines are connected, the feeding flowing direction is consistent with the rotating direction of the impellers, and the underflow discharge pipe is arranged along the radial direction of the tank body.
According to the technical scheme provided by the invention, the complete device of the high-concentration flotation machine provided by the embodiment of the invention realizes effective bubble dispersion, particle suspension, uniform ore distribution, collision of particles and bubbles, ore pulp concentration and the like in the single flotation machine under the condition of high-concentration ore feeding; the ore pulp flowing between the monomer flotation machines in the operation system is realized, the rotation direction is synergetic, the high-low concentration separation area is constructed, and the like. Therefore, the traditional flotation process conditions are innovated, the aim of high-concentration separation is achieved, and the effects of water saving, medicament saving, short flow configuration and energy saving and energy consumption are finally achieved.
Drawings
FIG. 1 is a schematic front view of a high concentration flotation cell plant configuration provided by an embodiment of the present invention;
fig. 2 is a schematic plan view (direction a) of a high concentration flotation cell plant arrangement provided by an embodiment of the present invention;
figure 3 is a schematic diagram of the structure of a flotation machine 1 according to an embodiment of the invention;
figure 4a is a schematic diagram of the structure of the tank 8 of a flotation cell according to an embodiment of the invention;
FIG. 4B is a schematic view of the structure of FIG. 4a along direction B;
FIG. 5 is a schematic structural diagram of a flotation machine 2 for middling in the embodiment of the invention;
FIG. 6a is a schematic structural diagram of a tank 16 of a flotation machine in an embodiment of the invention;
FIG. 6b is a schematic view of the structure of FIG. 6a in the direction C;
FIG. 7a is a schematic diagram of the structure of a feed dispersion well 15 in an embodiment of the present invention;
FIG. 7b is a schematic view of the structure of FIG. 7a in direction E;
fig. 8 is a schematic structural diagram of a tail flotation machine 3 in the embodiment of the invention;
fig. 9a is a schematic structural diagram of the tank 22 of the tailing flotation machine 3 in the embodiment of the invention;
fig. 9b is a schematic view of the structure in direction D of fig. 9 a.
Detailed Description
The embodiments of the present invention will be described in further detail below. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.
The invention discloses a high-concentration flotation machine complete device, which comprises the following preferred specific embodiments:
the ore pulp feeding pipe is tangentially fed to the upper side of the side face of an impeller in the ore feeding flotation machine from a tank body of the ore feeding flotation machine, the bottom flow of the ore feeding flotation machine is tangentially fed into the middle flotation machine as middling, the bottom flow of the middle flotation machine is tangentially fed into the next middle flotation machine from the bottom of the last middle flotation machine, and the bottom flow of the last middle flotation machine is tangentially fed into the tail flotation machine from the bottom of the middle flotation machine;
the multiple middling flotation machines are arranged in a staggered tangential feeding mode, impellers of the feeding flotation machines rotate clockwise, the first middling flotation machine connected with the feeding flotation machines is anticlockwise, the next middling flotation machine connected with the middling flotation machines is clockwise, the middling flotation machines are sequentially arranged in a staggered mode until the tailing flotation machines are connected, the feeding flowing direction is consistent with the rotating direction of the impellers, and the underflow discharge pipe is arranged along the radial direction of the tank body.
The preferred number of the flotation machines is 2-5.
The tank bodies of the ore feeding flotation machine, the intermediate flotation machine and the tail flotation machine respectively comprise a cylindrical section and a conical section, stators and stator supports are arranged in the tank bodies, and feed dispersion wells are also arranged in the tank bodies of the intermediate flotation machine and the tail flotation machine;
and the ore pulp feeding pipe of the ore feeding flotation machine is tangentially fed to the position near the outer edge of the inner stator of the tank body, and the middling feeding pipes of the middling flotation machine and the tailing flotation machine are tangentially fed to the feeding dispersion well in the tank body.
The cone segment angle is between 60-120 degrees.
The feeding dispersion well is of an annular structure formed by a closed cylinder and a conical surface at the bottom, uniformly distributed discharge holes are formed in the bottom of the conical surface, the feeding dispersion well is fixed right above an impeller, and downward fed ore pulp and bubbles rising in an impeller area are subjected to countercurrent collision.
The complete device of the high-concentration flotation machine realizes effective bubble dispersion, particle suspension, uniform ore distribution, collision of particles and bubbles, ore pulp concentration and the like in the single flotation machine under the condition of high-concentration feeding; the ore pulp flowing between the monomer flotation machines in the operation system is realized, the rotation direction is synergetic, the high-low concentration separation area is constructed, and the like. Therefore, the traditional flotation process conditions are innovated, the purpose of high-concentration separation is realized, the effects of saving water, saving reagents, short flow configuration and energy and consumption are finally achieved, and the progress of the mineral separation technology is promoted.
The specific embodiment is as follows:
as shown in fig. 1 and 2, the flotation device comprises a feed flotation machine 1, a middle flotation machine 2 and a tail flotation machine 3. Generally, the flotation device consists of 1 ore feeding flotation machine 1, a general number of 2-5 (determined by flotation time) middle flotation machines 2 and 1 tail flotation machine 3. Fresh ore pulp is generally fed above the side face of an impeller in the flotation machine tangentially along an ore feeding flotation machine 1, the bottom flow of the ore feeding flotation machine is fed into an ore pulp distributor of a flotation machine 2 tangentially as middling, the bottom flow is fed into the next flotation machine tangentially from the bottom of the previous flotation machine, and a plurality of flotation machines are arranged in a staggered tangential feeding mode; and the bottom flow of the last flotation machine for intermediate flotation is tangentially fed into the flotation machine for tail flotation. The rotation direction of the feeding flotation machine is clockwise, the first connected flotation machine 2 is anticlockwise, the next flotation machine is clockwise, and the flotation machines are arranged in a staggered mode.
As shown in fig. 3, 4a, 4b, the feed flotation machine 1 comprises a stator 4, an impeller 5, a stator support 6, a tank body 8, a froth tank 7 and a level control valve 9. The trough body 8 is composed of a cylindrical section 10 and a conical section 12, the conical section 12 is provided with a support plate 11, the conical angle of the conical section 12 is 60-120 degrees and is mainly determined by the properties of ores, an ore feeding pipe 12 is fed along the clockwise tangential direction of the cylindrical section 10, an ore feeding outlet is arranged near the upper part of an impeller and at the outer edge of a stator, and underflow is discharged by radially and anticlockwise rotating for a certain angle through a tailing pipe 14; the foam tank 7 is arranged at the upper part of a flotation machine tank body 8; the top plate of the stator bracket 6 is of an annular structure, and the lower part of the top part is connected with the upper part of the groove body cone section 12 through a support plate; the upper part of the stator bracket 6 is cylindrical, and the lower part is conical, and the stator 4 is arranged on the stator bracket 6; the impeller 5 is positioned in the central area of the stator, and air with pressure is pressed into the center of the impeller through the hollow shaft. The high-concentration ore pulp is quickly concentrated in the conical section of the tank body, the impeller circulates the low-concentration ore pulp and the dispersing air, and the air is easily and uniformly dispersed. The target mineral which is not recovered enters the next flotation machine along the middling pipe.
As shown in fig. 5, 6a and 6b, the flotation machine 2 consists of a stator 4, an impeller 5, a stator bracket 6, a foam tank 7, a liquid level control valve 9, a feed dispersion well 15 and a tank body 16. The trough body 16 is composed of a cylindrical section 17, a conical section 18 and a support plate 19, the conical angle of the conical section 18 is 60-120 degrees and is mainly determined by the properties of ores, an ore feeding pipe 20 is fed into the feeding dispersion well 15 along the anticlockwise tangential direction of the cylindrical section 10, a middling pipe 21 is discharged along a certain included angle with the horizontal in the radial direction, and the discharging direction is tangent to the feeding dispersion outer edge of the flotation machine of the next trough;
as shown in fig. 7a and 7b, the feeding dispersion well 15 is formed by a closed cylinder and a conical surface at the bottom to form an annular structure, the bottom of the cone is provided with uniformly distributed discharging materials, the feeding dispersion well 15 is fixed right above an impeller, and slurry fed downwards and bubbles rising in an impeller area generate countercurrent collision. After the high-concentration ore pulp comes out of the feed well, the high-concentration ore pulp collides with rising bubbles firstly, the ore pulp is concentrated in the conical section of the tank body quickly, the impeller circulates the low-concentration ore pulp and dispersed air, and the air is easy to disperse uniformly. The target mineral which is not recovered enters the next flotation machine along the middling pipe.
As shown in fig. 8, 9a and 9b, the tail flotation machine 3 is composed of a stator 4, an impeller 5, a stator bracket 6, a foam tank 7, a liquid level control valve 9, a feed dispersion well 15 and a tank body 22. The trough body 22 consists of a cylindrical section 23, a conical section 24 and a support plate 25, the conical angle of the conical section 24 is 60-120 degrees, the angle is mainly determined by the properties of ores, an ore feeding pipe 26 is fed into the feeding dispersion well 15 along the clockwise tangential direction of the cylindrical section 23, and tailings are discharged from the bottom of the cone along the radial direction through a tailing pipe 27; the feeding dispersion well 15 is of an annular structure formed by a closed cylinder and a conical surface at the bottom, uniformly distributed discharging materials are arranged at the bottom of the cone, the feeding dispersion well 15 is fixed right above an impeller, and downward fed ore pulp and bubbles rising in an impeller area generate countercurrent collision. After the high-concentration ore pulp comes out of the feeding dispersion well, the high-concentration ore pulp collides with rising bubbles firstly, the ore pulp is concentrated in the conical section of the tank body quickly, the impeller circulates the low-concentration ore pulp and dispersed air, and the air is easy to disperse uniformly. And the tailings are discharged from the bottom of the cell body of the flotation machine.
The implementation of the invention can bring the following beneficial effects:
1) the air is dispersed in a low concentration area, which is beneficial to the quick and uniform dispersion of the air of the flotation machine;
2) the two mineralization forms of the air bubbles and the target mineral particles are realized by the countercurrent collision in the transportation area and the concurrent collision in the impeller area.
3) High-concentration ore feeding and low-concentration separation are realized. Therefore, the traditional flotation process is innovated, the effects of saving water, saving medicament, short flow configuration and energy are achieved, and the discharge amount of water pollution is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The complete equipment of the high-concentration flotation machine is characterized by comprising 1 ore feeding flotation machine, a plurality of intermediate flotation machines and 1 tail flotation machine which are sequentially connected, wherein an ore pulp feeding pipe is fed to the upper side of the side face of an impeller in the ore feeding flotation machine from a tank body of the ore feeding flotation machine in a tangential mode, the bottom flow of the ore feeding flotation machine is fed into the intermediate flotation machine as the intermediate ore in a tangential mode, the bottom flow of the intermediate flotation machine is fed into the next intermediate flotation machine from the bottom of the previous intermediate flotation machine in a tangential mode, and the bottom flow of the last intermediate flotation machine is fed into the tail flotation machine from the bottom of the intermediate flotation machine in a tangential mode;
the method comprises the steps that a plurality of middling flotation machines are arranged in a staggered tangential feeding mode, impellers of the feeding flotation machines rotate clockwise, the first connected middling flotation machine is anticlockwise, the next middling flotation machine is clockwise, the middling flotation machines are sequentially arranged in a staggered mode until the tail flotation machine is reached, the feeding flowing direction is consistent with the rotating direction of the impellers, and the underflow discharge pipe of each flotation machine is arranged along the radial direction of the groove body of the flotation machine.
2. The high concentration flotation cell plant according to claim 1, wherein the preferred number of medium concentration flotation cells is 2-5.
3. The high-concentration flotation machine complete device according to claim 2, wherein the tank bodies of the feed flotation machine, the intermediate flotation machine and the tail flotation machine comprise a cylindrical section and a conical section, stators and stator supports are arranged in the tank bodies, and feed dispersion wells are further arranged in the tank bodies of the intermediate flotation machine and the tail flotation machine;
and the ore pulp feeding pipe of the ore feeding flotation machine is tangentially fed to the position near the outer edge of the inner stator of the tank body, and the middling feeding pipes of the middling flotation machine and the tailing flotation machine are tangentially fed to the feeding dispersion well in the tank body.
4. The high concentration flotation cell plant according to claim 3, wherein the cone segment angle is between 60-120 degrees.
5. The high concentration flotation machine complete equipment according to claim 3 or 4, wherein the feed dispersing well is of an annular structure formed by a closed cylinder and a conical surface at the bottom, the bottom of the conical surface is provided with uniformly distributed discharge holes, the feed dispersing well is fixed right above an impeller, and the downward fed ore pulp and bubbles rising in the impeller region generate countercurrent collision.
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| CN110170382A (en) * | 2019-06-26 | 2019-08-27 | 绍兴金冶环保科技有限公司 | Leaf paddle metallurgy flotation device |
| CN114433348B (en) * | 2022-02-09 | 2024-05-10 | 北矿机电科技有限责任公司 | Spiral-flow type electromagnetic separator |
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| EP2714242B1 (en) * | 2011-05-25 | 2022-10-26 | Cidra Corporate Services, Inc. | Flotation separation using beads or bubbles containing polydimethylsiloxane |
| CN102284371B (en) * | 2011-06-22 | 2013-01-09 | 李冠东 | Column combined reinforced high-efficiency flotation method and flotation equipment thereof |
| CN202137054U (en) * | 2011-06-22 | 2012-02-08 | 李冠东 | Machine-column combined strengthened high-efficiency floatation column |
| CN102716814B (en) * | 2012-06-26 | 2014-08-20 | 中国矿业大学 | Novel flotation column serial connection test system for improving flotation granularity upper limit |
| CN104923408B (en) * | 2015-07-08 | 2017-05-17 | 中国矿业大学 | Co-platform flotation column and flotation machine combined separating technology and device |
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