CN107127048B - Magnetic micro-fluidic concentrator and complete magnetic separation equipment thereof - Google Patents
Magnetic micro-fluidic concentrator and complete magnetic separation equipment thereof Download PDFInfo
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- CN107127048B CN107127048B CN201710503849.4A CN201710503849A CN107127048B CN 107127048 B CN107127048 B CN 107127048B CN 201710503849 A CN201710503849 A CN 201710503849A CN 107127048 B CN107127048 B CN 107127048B
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- 238000007885 magnetic separation Methods 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 238000000926 separation method Methods 0.000 claims abstract description 34
- 239000012141 concentrate Substances 0.000 claims abstract description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 7
- 239000011707 mineral Substances 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 11
- 239000006249 magnetic particle Substances 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 230000004907 flux Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000012535 impurity Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000006148 magnetic separator Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The magnetic micro-fluidic concentrator can regulate and control the mutual matching of a magnetic field and water supply through a control cabinet, and forms local micro water flow in magnetic linkage flow formed by magnetic linkages flowing downwards to purify the magnetic linkage flow, so that the precise separation function of minerals is finally realized. The magnetic micro-fluidic concentration machine can achieve the advantages of ideal and selectable concentrate grade, large treatment capacity, low water consumption, high automation degree and the like while ensuring high recovery rate.
Description
Technical Field
The invention belongs to the technical field of magnetic separation, and particularly relates to a magnetic microfluidic concentrator and complete magnetic separation equipment thereof, which belong to novel intelligent electromagnetic separation equipment.
Background
With the surplus of the iron ore market and the trend of iron ore which is low for a short time or even for a long time, for each large concentrating mill, the problems of improving the concentrating process and reducing the production cost of the fine iron powder become urgent to be solved.
The reduction of the production cost of the fine iron powder can be realized by mining high-grade raw ore or improving the ore dressing process. Because the domestic mine is generally poor in ores and few in rich ores, the approach of mining high-grade raw ores can not be realized for most of domestic separation plants, and the production cost of the iron concentrate powder can be reduced only by improving the separation process; the beneficiation process can be improved through ways of 'more crushing and less grinding' or 'less grinding and more separation' and the like, and the purpose of reducing the production cost is achieved.
For the common wet type cylinder magnetic separator, the separation is mainly carried out by magnetic force, and for the re-concentration of concentrate, the high magnetic field intensity is difficult to ensure the high grade and high precision recovery rate at the same time; and finally, the grade improvement amplitude has to be abandoned in order to ensure the recovery rate of the high-precision ores. For the desliming tank, the permanent magnet and water are jointly used for sorting and desliming, so that only desliming can be ensured, and the included poor intergrowth cannot be removed, so that the grade improvement is limited. The magnetic separation column can simultaneously ensure high product improvement range and high recovery rate, but has the defect of low treatment capacity, and is difficult to realize large-scale and large treatment capacity. The elutriation magnetic separator, the grade elevator, the spiral column and other products are used for overcoming the defects, but the water consumption is high; and because these devices have a low level of automation, a large amount of manpower is required to maintain and adjust, thus increasing the cost of fine iron powder.
Meanwhile, for the magnetic reselection equipment, the high sorting index can be achieved by means of the fine and delicate matching of the water supply and the magnetic field. The method can achieve high recovery rate while pursuing high grade, and obtain high grade concentrate and minimum tail leakage to the maximum extent. The water supply system of the existing elutriation magnetic separator, the grade elevator, the spiral column and other equipment is simple, and the fine matching of water supply and a magnetic field is difficult to achieve; this results in an suboptimal concentrate. And simultaneously, the water consumption of the equipment is huge because the water supply system is extensive.
In conclusion, in order to improve the beneficiation process, reduce the production cost of the iron concentrate and pursue more ideal concentrate grade and recovery rate. A large grade-improving device with high grade-improving amplitude, high recovery rate, low water consumption and high automation degree is urgently needed to play roles of less grinding and more selection in the mineral separation process and achieving the ideal separation target.
Disclosure of Invention
In order to solve the problems, the inventor provides a magnetic micro-fluidic concentrator and a complete set of magnetic separation equipment thereof through a plurality of designs and researches, the magnetic micro-fluidic concentrator regulates and controls the mutual matching of a magnetic field and water supply through a control cabinet, local micro water flow is formed in downward flowing magnetic linkage flow formed by magnetic linkages to purify the magnetic linkage flow, and finally the precise separation function of minerals is realized. The method has the advantages of high recovery rate, ideal and selectable concentrate grade, large treatment capacity, low water consumption, high automation degree and the like.
According to the first technical scheme, the invention provides the magnetic micro-fluidic concentrator, which can be used for purifying a magnetic linkage flow by forming a local micro water flow in the downward flowing magnetic linkage flow formed by magnetic linkages through the mutual matching of a control cabinet regulating and controlling a magnetic field and water supply, and finally realizing the precise separation function of minerals; the magnetic micro-fluidic concentration machine is preferably under the intelligent regulation and control of a control cabinet, a magnetic field is finely matched with water flow in the separation host, local micro water flow is formed in magnetic linkage flow consisting of magnetic linkages of different grades, the local micro water flow continuously purifies the magnetic linkage flow moving downwards by removing unnecessary low-grade magnetic linkages in the magnetic linkage flow, and finally the magnetic linkage flow is deposited on a separation bottom cone to form concentrate to be discharged.
Specifically, the sorting system comprises an ore feeding groove 1, an overflow groove 2, a sorting host machine 4 and a sorting barrel conical bottom 5, wherein the ore feeding groove 1 is arranged at the upper part of the overflow groove 2, the overflow groove 2 is arranged at the upper part of the sorting host machine 4, and the sorting barrel conical bottom 5 is arranged at the lower part of the sorting host machine 4. An inclined plane 8 is arranged in the middle of the overflow groove, and an overflow groove water supply pipe I12 and an overflow groove water supply pipe II 15 are arranged below the inclined plane 8.
The inner surrounding plate 6 of the overflow chute 2 is provided with a plurality of tailing outlets 7, and the tailing outlets 7 can be in various shapes such as square and round and are used for discharging tailings generated in the sorting host machine 4. An upper water supply pipe 13, a middle water supply pipe 18 and a lower water supply pipe 11 are arranged on a conical barrel at the bottom of the sorting host machine 4, the water supply pipes 13, the middle water supply pipe 18 and the lower water supply pipe 11 are positioned at different heights, and three water supply pipes are provided with a sewage cleaning opening 20 with a blind flange; and/or a bottom cone water supply valve 25 is arranged on the upper water supply pipe 13, the middle water supply pipe 18 and the lower water supply pipe 11.
In addition, the upper water supply pipe 13, the middle water supply pipe 18 and the lower water supply pipe 11 are controlled by the control cabinet 24 to regulate and control the water supply quantity fed into the lower part of the magneto-microfluidic concentrator through the bottom cone water supply valve 25; the upper feed pipe 13, the middle feed pipe 18 and the lower feed pipe 11 may or may not be oriented in the same direction. An upper fixing flange 17 and a lower fixing flange 19 are respectively arranged at the upper part and the middle lower part of the sorting host 4, and the upper fixing flange 17 and the lower fixing flange 19 are respectively provided with a hoisting hole and a foundation mounting hole for hoisting and fixing the magneto-microfluidic sorting machine.
Further, the sorting main machine 4 is provided with a junction box 10, and the junction box 10 is located between the upper fixing flange 17 and the lower fixing flange 19. The upper fixing flange 17 is provided with a second lifting lug 16; or the ore feeding groove 1 is provided with a first lifting lug 14.
According to a second aspect of the invention, there is provided a magnetic separation plant in which any of the above described magnetomicrofluidic concentrators is used.
Compared with the magnetic separator in the prior art, the magnetic micro-fluidic concentrator disclosed by the invention solves the problem that the wet-type cylindrical magnetic separator and the desliming tank have no obvious effect on improving the magnetite concentrate grade; the large-scale and large-scale treatment capacity is difficult to realize due to low treatment capacity of the magnetic separation column; the problems that water flow and ore pulp flow cannot be matched with a magnetic field very finely to accurately separate magnetic particles and impurities, and the problems that water consumption is large, the product extraction amplitude and the recovery rate are limited and the like are caused; the conventional equipment has the problem of low automation degree. Furthermore, the magnetic reselection device is simple in structure and reasonable in design, fills the blank of the magnetic reselection device, and is worthy of wide popularization and application.
Drawings
FIG. 1 is a schematic diagram of a magnetomicrofluidic concentrator in accordance with the present invention.
FIG. 2 is a right side view of the magneto-microfluidic concentrator shown in FIG. 1.
FIG. 3 is a schematic diagram of a control cabinet in the magnetofiuidic concentrator of FIG. 1.
FIG. 4 is an enlarged schematic view of a localized area A in the magnetomicrofluidic concentrator of FIG. 1
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Additionally, the scope of the present invention should not be limited to the particular structures or components or the particular parameters described below.
The magnetic micro-fluidic concentrator indicates 'magnetic micro-fluidic', and 'magnetic' particularly refers to a magnetic field, magnetic particles or a magnetic chain formed by magnetic particles in an agglomerated mode. "micro" specifically refers to a precise, fine, or minute meaning. The term "stream" refers specifically to a group of flowing magnetic particles, a group of flowing magnetic chains, a water stream of each water supply line, or a local micro-water stream formed in a sorting host. "control" specifically refers to control. "magnetomicrofluidics" refers to the precise microcontrol of magnetic fields, magnetic particles, or magnetic chains formed by the agglomeration of magnetic particles.
Compared with the magnetic separator in the prior art, the magnetic micro-flow control device creatively realizes the magnetic micro-flow control. The magnetic micro-fluidic concentration machine disclosed by the invention has the advantages that under the intelligent regulation and control of the control cabinet, a magnetic field is finely matched with water flow in the separation host, local micro-water flow is formed in magnetic linkage flow consisting of magnetic linkages with different grades, the local micro-water flow continuously purifies the magnetic linkage flow moving downwards by removing unnecessary low-grade magnetic linkages in the magnetic linkage flow, and finally the magnetic linkage flow is deposited on a separation bottom cone to form concentrate to be discharged. Furthermore, the magneto-microfluidic control concentrator can be used as large-scale intelligent mineral separation equipment, and through mutual matching of a control cabinet for regulating a magnetic field and water supply, local micro-water flow is formed in downward flowing magnetic linkage flow formed by magnetic linkages to purify the magnetic linkage flow, so that the precise separation function of minerals is finally realized. The magnetic ore dressing machine is preferably used for dressing magnetic ores in a dressing plant, and has the advantages of high recovery rate, ideal and selectable concentrate grade, large treatment capacity, low water consumption, high automation degree and the like.
In summary, the magneto-microfluidic concentration machine mainly comprises a separation part consisting of an ore feeding groove, an overflow groove, a separation main machine and a separation bottom cone; the intelligent control part is composed of a first sensor, a second sensor, a junction box, a control valve, a control cabinet and a magnetic system in the sorting host. The ore feeding groove is used for feeding ore pulp into the magnetic micro-fluidic concentration machine, the overflow groove is used for discharging tailings, and the control valve at the lower part of the separation bottom cone is used for controlling the discharge of concentrate. The overflow groove is provided with a first overflow groove water supply pipe and a second overflow groove water supply pipe which are symmetrically distributed, and the two water supply pipes are provided with control valves. The water supply quantity fed into the upper part of the magnetic micro-fluidic concentrator is regulated and controlled by the two water supply pipes under the control of the control cabinet. The bottom of the sorting main machine is provided with an upper water supply pipe, a middle water supply pipe, a lower water supply pipe and other three water supply pipes, and the three water supply pipes are all provided with control valves. The three water supply pipes regulate and control the water supply quantity fed into the lower part of the magneto-microfluidic concentrator under the control of the control cabinet.
Furthermore, a magnetic system is arranged in the sorting host machine and used for generating a sorting magnetic field, so that the magnetic particles fed into the magnetic micro-fluidic sorting machine are agglomerated and dispersed, and the like, and meanwhile, the magnetic micro-fluidic sorting machine is finely matched with the flow of the turbid liquid of the magnetic particles in the sorting host machine under the intelligent control of the control cabinet, so that the effect of precise separation is achieved. Five water supplies are respectively divided into five parts through two water supply pipes arranged at the upper part of the magnetic micro-fluidic concentrator and three water supply pipes arranged at the lower part of the magnetic micro-fluidic concentrator. The control cabinet obtains feedback signals from the first sensor and the second sensor, obtains magnetic field signals from the magnetic system, and then intelligently calculates the opening degree of each control valve through programs in the control cabinet. Therefore, water fed into the magnetic micro-fluidic concentrator can be finely matched with the magnetic field, and the aim of accurately separating high-grade magnetic particles from low-grade impurities is fulfilled.
Specifically, referring to fig. 1-4, the magnetofluidic concentrator mainly comprises a feeding trough 1, an overflow trough 2, a main sorting machine 4 and a bottom sorting cone 5. The intelligent control part of the system consists of a first sensor 9, a second sensor 23, a junction box 10, an overflow trough water supply valve 21, a bottom cone water supply valve 25, an ore discharge valve 26, a control cabinet 24 and a magnetic system in the separation host 4.
The feed chute 1 is used to feed the pulp into the magneto-microfluidic concentrator. The side surface of the feeding chute 1 is provided with a first lifting lug 14, the top part is provided with a feeding chute cover 22, and the bottom part is connected with the overflow chute 2. According to different specific designs, the first lifting lug 14 can also be arranged at the top of the ore feeding groove cover 22, and the ore feeding groove 1 and the overflow groove 2 can be directly welded or fixed through flange bolts. Ore is fed into the top of the ore feeding groove cover 22, and feeding holes with corresponding sizes can be formed in the ore feeding groove cover 22 according to the size of a feeding pipeline on the using site to feed the ore.
The overflow trough 2 is used for discharging tailings generated by sorting, and water can be fed into the upper part of the sorting main machine 4 through two water feeding pipes, namely an overflow trough water feeding pipe I12 and an overflow trough water feeding pipe II 15, which are arranged on the overflow trough 2.
And a first overflow groove water supply pipe 12 and a second overflow groove water supply pipe 15 arranged on the overflow groove 2 are positioned below the inclined plane 8 in the middle of the overflow groove 2. The two overflow trough water supply pipes can be arranged in an opposite way or at a certain included angle. The number of overflow trough feed pipes can be more than two or only one, depending on the specific design, and other fluids can also be circulated. It is within the scope of the present invention to add piping to the overflow launder 2.
And overflow tank water supply valves 21 are arranged on the overflow tank water supply pipe I12 and the overflow tank water supply pipe II 15. The overflow trough water supply valve 21 controls parameters such as water supply flow and flow velocity fed into the magneto-microfluidic concentration machine from the lower part of the overflow trough 2 through a control cabinet 24.
The inner surrounding plate 6 of the overflow groove 2 is provided with tailing outlets 7 with the number more than or equal to one. The preferable scheme is that the periphery of the tailing outlet 7 is uniformly distributed on the inner coaming 6 and the shape is square. In addition, the tailing outlets 7 can be not uniformly distributed according to a specific design scheme, and the shape can also adopt other shapes. It is within the scope of the invention to provide the overflow trough inner shroud 6 with an outlet.
The overflow launder 2 is provided with a first sensor 9 located below the inclined plane 8. Which may be one of a pressure sensor, a concentration sensor, a grade sensor or a color sensor. Which is used to detect signals corresponding to the sensor function at the isopipe 2 and feed the signals back to the control cabinet 24.
According to the preferred technical scheme, the overflow chute 2 is connected to the top of the sorting host machine 4 through a flange. Depending on the design, overflow launder 2 may also be welded directly to the top of the sorting mainframe 4.
One side of the overflow groove 2 is provided with a tailing pipe 3, and the middle part is provided with an inclined plane 8. The tailing pipe 3 is positioned at the slope bottom of the inclined plane 8 and is used for connecting an external pipeline to discharge tailings. The inclined plane 8 is used for gathering the tailings to one side of the tailing pipe 3, so that the tailing pipe 3 can discharge ores conveniently.
The main separation machine 4 is mainly used for separating ore pulp. A magnetic system arranged in the sorting host machine generates a magnetic field, and the magnetic field causes the agglomeration-dispersion of magnetic particles. Through the intelligent control of the control cabinet 24, the magnetic field and the water flow in the sorting host 4 are finely matched, so that the high-grade magnetic flux linkage, the low-grade magnetic flux linkage and impurities which are not mixed are accurately separated. The impurities and the low-grade magnetic chains move upwards to form tailings, and the tailings are discharged through a tailing pipe 3 arranged on the overflow trough 2. The magnetic linkage moves downwards to form concentrate which is discharged through the lower part of the separation bottom cone 5.
The top and middle lower part of the sorting main machine 4 are respectively provided with an upper fixing flange 17 and a lower fixing flange 19 for fixing the magnetic micro-fluidic concentrator to a magnetic micro-fluidic concentrator frame body or a bearing foundation. And a second lifting lug 16 is arranged on the upper fixing flange 17 and used for lifting the sorting host machine 4. And hoisting holes and mounting foot holes are respectively arranged on the upper fixing flange 17 and the lower fixing flange 19 and are respectively used for hoisting and fixing the magnetic microfluidic concentrator.
A junction box 10 is provided between the upper and lower mounting flanges 17, 19 for connecting the magnetofluidic concentrator to a control cabinet 24, which is the connection port for the cables between the control cabinet 24 and the magnetofluidic concentrator.
Preferably, three water supply pipes, namely an upper water supply pipe 13, a middle water supply pipe 18 and a lower water supply pipe 11, are arranged on a conical barrel at the bottom of the sorting main machine 4 according to different heights and are used for supplying water to the magneto-microfluidic concentrator from the middle lower part of the sorting main machine 4. The water supply pipes are all provided with a bottom cone water supply valve 25, and parameters such as water supply flow, flow speed and the like fed into the magnetic micro-fluidic classificator from the middle lower part of the sorting main machine 4 are controlled through a control cabinet 24. The water supply pipes are all provided with a sewage cleaning port 20 with a blind flange. The lower part of the separation bottom cone 5 is provided with an ore discharge valve 26, and parameters such as water supply flow, flow speed and the like fed into the magnetic micro-fluidic classificator from the middle lower part of the separation main machine 4 are controlled through a control cabinet 24.
In addition, according to a specific design scheme, the number of the water supply pipes is not limited to three, and can be smaller than or larger than three. The water supply pipe may not be provided with the dirt cleaning port 20. The water supply pipe may not be provided with the bottom cone water supply valve 25. It is within the scope of this patent to provide more than one feed pipe on the conical barrel.
The bottom of the separation main machine 4 is provided with a separation bottom cone 5 connected through a flange, and the separation bottom cone is not only used for installing an ore discharge valve 26 to control the discharge amount and the discharge concentration of the concentrate, but also can be used for cleaning dirt at the bottom of the magnetic micro-fluidic concentration machine through a detachable function.
The second sensor 23 is arranged on one side of the sorting bottom cone 5, and can be one of a pressure sensor, a concentration sensor, a grade sensor or a color sensor. The detection and sorting device is used for detecting signals corresponding to the functions of the sensor at the sorting bottom cone 5 and feeding the signals back to the control cabinet 24.
The overflow tank water supply valve (control valve) 21, the bottom cone water supply valve 25 and the ore discharge valve 26 arranged on the device can be one or more of various types such as ball valves, butterfly valves, gate valves, pipe clamp valves and the like, and the valve control mode can also be one or more of various modes such as manual, electric, pneumatic and the like. And the magnetic system, the first sensor 9, the second sensor 23 and the control cabinet 24 arranged in the sorting host 4 are combined to form an intelligent control system of the magnetic micro-fluidic concentrator. The components are automatically regulated and controlled by the control cabinet 24 when the magneto-microfluidic concentrator works.
The ore pulp is fed into the middle upper part of the separation main machine 4 through the feeding groove 1. The magnetic particles in the ore pulp are agglomerated under the action of a magnetic field to form a magnetic chain. The nonmagnetic impurities are not agglomerated into magnetic chains, the magnetic chains are broken up by a reverse breaking-up magnetic field moving from bottom to top, and the impurities mixed in the magnetic chains are released at the same time, and the magnetic chains without impurities are formed under the action of the composite magnetic field. After being released by magnetic linkage, the nonmagnetic impurities enter the tailings along with the ascending water flow in the sorting host machine 4 and are discharged.
The magnetic size of the magnetic particles is proportional to the grade of the magnetic particles. The size of the flux linkage is proportional to the magnetic properties of the magnetic particles at the same magnetic field strength. Thus, at the same magnetic field strength, the size of the flux linkage is proportional to the grade of the magnetic particles contained therein. And forming a flux linkage group consisting of flux linkages with different magnetic sizes to continue moving downwards. In the downward movement process, the magnetic chain group is subjected to the alternating action of a reverse scattered magnetic field and a composite magnetic field which are generated by a magnetic system and move from bottom to top, and the magnetic chain is continuously scattered and reunited. Under the action of the composite magnetic field, high-grade particles and high-grade particles are agglomerated each time, and low-grade particles are agglomerated into small magnetic chains. The downward movement process of the flux linkage flow is also a process for improving the grade of the high-grade flux linkage. Meanwhile, in the process, water with different functions is fed into the sorting main machine 4 through the water feeding pipelines. Under the intelligent regulation and control of the control cabinet 24, multifunctional water supply pipelines at different positions such as the overflow trough water supply pipe I12, the overflow trough water supply pipe II 15, the upper water supply pipe 13, the middle water supply pipe 18 and the lower water supply pipe 11 are mutually matched, and local micro water flow matched with the magnetic field is formed in flux linkage flow. And each low-grade magnetic linkage is formed in the magnetic linkage flow, namely the magnetic linkage flow is removed by local micro water flow. After being removed, the low-grade magnetic chains move upwards to form tailings to be discharged. The magnetic flux linkage flow moving downwards is purified through the cooperation of the magnetic field and the micro water flow. The finally formed high-grade magnetic linkage flow flows downwards to the bottom of the sorting main machine 4 to form concentrate to be discharged.
Because the magnetic field and the water flow are controlled by the control cabinet 24, different magnetic field and water flow matching states can form different grades of magnetic linkage flows and different grades of low-grade magnetic linkage flows. The ore pulp is separated from the ore pulp, and the ore pulp is accurately sorted, so that the highest-grade concentrate is obtained on the premise of ensuring the qualified recovery rate.
Meanwhile, due to the arrangement of the multifunctional water supply pipelines at different positions of the overflow groove water supply pipe I12, the overflow groove water supply pipe II 15, the upper water supply pipe 13, the middle water supply pipe 18, the lower water supply pipe 11 and the like, a magnetic system and an intelligent control system, the water supply amount is more accurate, and water is supplied according to needs. And the precise matching of the magnetic linkage flow and the local micro-water flow in the magnetic micro-fluidic concentrator and the magnetic field is automatically regulated and controlled. The problems of large water consumption and low automation degree are solved.
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. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Claims (6)
1. A magnetic micro-fluidic concentrator is characterized in that a control cabinet regulates the mutual matching of a magnetic field and water supply, and a local micro water flow is formed in a magnetic linkage flow which flows downwards and is formed by magnetic linkages to purify the magnetic linkage flow, so that the precise separation function of minerals is finally realized;
under the intelligent regulation and control of the control cabinet, the magnetic field of the magnetic microfluidic concentration machine is in fine cooperation with water flow in the separation host (4), local micro water flow is formed in magnetic linkage flow consisting of magnetic linkages of different grades, the local micro water flow continuously purifies downward moving magnetic linkage flow by removing unneeded low-grade magnetic linkages in the magnetic linkage flow, and finally the magnetic linkage flow is deposited on the conical bottom (5) of the separation cylinder to form concentrate to be discharged;
the sorting system comprises an ore feeding groove (1), an overflow groove (2), a sorting host (4) and a sorting cylinder conical bottom (5), wherein the ore feeding groove (1) is arranged at the upper part of the overflow groove (2), the overflow groove (2) is arranged at the upper part of the sorting host (4), and the sorting cylinder conical bottom (5) is arranged at the lower part of the sorting host (4); an inclined plane (8) is arranged in the middle of the overflow groove, and a first overflow groove water supply pipe (12) and a second overflow groove water supply pipe (15) are arranged below the inclined plane (8);
an upper water supply pipe (13), a middle water supply pipe (18) and a lower water supply pipe (11) are arranged on the conical bottom of the separation cylinder, the upper water supply pipe (13), the middle water supply pipe (18) and the lower water supply pipe (11) are positioned at different heights, and three water supply pipes are provided with a dirt cleaning opening (20) with a blind flange; and/or the upper water supply pipe (13), the middle water supply pipe (18) and the lower water supply pipe (11) are provided with bottom cone water supply valves (25);
water with different functions is fed into the separator through an overflow trough water supply pipe I (12), an overflow trough water supply pipe II (15), an upper water supply pipe (13), a middle water supply pipe and a lower water supply pipe;
a plurality of tailing outlets (7) are formed in an inner surrounding plate (6) of the overflow trough (2) and used for discharging tailings generated in the sorting main machine (4);
the upper water supply pipe (13), the middle water supply pipe (18) and the lower water supply pipe (11) are controlled by a control cabinet (24) to regulate and control the water supply quantity fed to the lower part of the magnetic micro-fluidic concentrator through a bottom cone water supply valve (25); the upper water supply pipe (13), the middle water supply pipe (18) and the lower water supply pipe (11) are mutually in the same direction or different directions.
2. A magnetomicrofluidic concentrator according to claim 1, characterized in that the tailings outlet (7) is square or circular.
3. The magnetomicrofluidic concentrator of claim 1, wherein the upper and lower parts of the main sorting machine (4) are respectively provided with an upper fixing flange (17) and a lower fixing flange (19), and the upper fixing flange (17) and the lower fixing flange (19) are respectively provided with a hoisting hole and a foot installation hole for hoisting and fixing the magnetomicrofluidic concentrator.
4. A magnetomicrofluidic concentrator according to claim 3, characterized in that the sorting mainframe (4) is provided with a junction box (10), the junction box (10) being located between the upper (17) and lower (19) mounting flanges.
5. A magnetomicrofluidic concentrator according to claim 4 wherein the upper mounting flange (17) is provided with a second lifting lug (16); or the ore feeding groove (1) is provided with a first lifting lug (14).
6. A magnetic separation plant in which a magnetomicrofluidic concentrator as claimed in any one of claims 1 to 5 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710503849.4A CN107127048B (en) | 2017-06-28 | 2017-06-28 | Magnetic micro-fluidic concentrator and complete magnetic separation equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710503849.4A CN107127048B (en) | 2017-06-28 | 2017-06-28 | Magnetic micro-fluidic concentrator and complete magnetic separation equipment thereof |
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| CN107233997B (en) * | 2017-06-28 | 2023-04-07 | 沈阳隆基电磁科技股份有限公司 | Magnetic micro-fluidic concentrator with intelligent regulation and control function and complete set of magnetic separation equipment thereof |
| CN107649287B (en) * | 2017-11-03 | 2024-04-02 | 沈阳隆基电磁科技股份有限公司 | Magnetic micro-fluidic concentrator and complete mineral processing equipment thereof |
| CN108031549B (en) * | 2017-11-29 | 2019-05-31 | 华中科技大学 | A kind of magnetic separating device continuously separated for a variety of particles and method |
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| US5759407A (en) * | 1996-02-23 | 1998-06-02 | Gurevitz; David | Method and apparatus for processing waste water |
| CN202356179U (en) * | 2011-10-24 | 2012-08-01 | 太原钢铁(集团)有限公司 | Column magnetic separator |
| CN106000642A (en) * | 2016-02-01 | 2016-10-12 | 沈阳隆基电磁科技股份有限公司 | Full-automatic magnetic suspension classificator |
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| CN2724842Y (en) * | 2004-08-17 | 2005-09-14 | 刘秉裕 | Magnetic dressing column |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5759407A (en) * | 1996-02-23 | 1998-06-02 | Gurevitz; David | Method and apparatus for processing waste water |
| CN202356179U (en) * | 2011-10-24 | 2012-08-01 | 太原钢铁(集团)有限公司 | Column magnetic separator |
| CN106000642A (en) * | 2016-02-01 | 2016-10-12 | 沈阳隆基电磁科技股份有限公司 | Full-automatic magnetic suspension classificator |
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