CN205650331U - Many magnetism of dry -type are permanent magnetism roller magnet separator - Google Patents

Many magnetism of dry -type are permanent magnetism roller magnet separator Download PDF

Info

Publication number
CN205650331U
CN205650331U CN201620343030.7U CN201620343030U CN205650331U CN 205650331 U CN205650331 U CN 205650331U CN 201620343030 U CN201620343030 U CN 201620343030U CN 205650331 U CN205650331 U CN 205650331U
Authority
CN
China
Prior art keywords
magnetic
magnetism
mouth
permanent magnetism
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201620343030.7U
Other languages
Chinese (zh)
Inventor
何亚民
魏勇
徐智平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Leejun Industrial Co Ltd
Original Assignee
Chengdu Leejun Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Leejun Industrial Co Ltd filed Critical Chengdu Leejun Industrial Co Ltd
Priority to CN201620343030.7U priority Critical patent/CN205650331U/en
Application granted granted Critical
Publication of CN205650331U publication Critical patent/CN205650331U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a many magnetism of dry -type are permanent magnetism roller magnet separator, including the magnet separator casing, be equipped with the permanent magnetism roller in the magnet separator casing, axle core that the permanent magnetism roller includes the outside drum of pivoted and lies in the middle part, the top of magnet separator casing is equipped with feeding means and dust arrester installation, and the below of magnet separator casing is equipped with tailing mouth, well mine mouth and concentrate mouth, is equipped with combination magnetism system in the permanent magnetism roller, combination magnetism system is including presetting magnetism system, throwing tail magnetism system and choice magnetism system, presets magnetism system, throws tail magnetism system and choice magnetism system to set gradually along outside drum rotation direction, and the material inlet of presetting magnetism system and feeding means corresponds, throws tail magnetism system and corresponds with the tailing mouth, and the choice magnetism corresponds with well mine mouth, and the afterbody that the choice magnetism is corresponds with the concentrate mouth. The utility model discloses to 0mm 20mm's the strong magnetic ore stone of wholegrain level carries out accurate throwing tail, carries out effectual grade to strong magnetic ore thing and promotes, can guarantee that the finished product ore grade can improve metal recycling again and rate, thereby greatly simplify the process flow of whole ore dressing.

Description

Dry type many magnetic system permanent magnetism roller magnetic separator
Technical field
This utility model relates to a kind of dry-type magnetic extractor, particularly relates to a kind of mine and industrial circle such as metallurgical of being applicable to Dry type many magnetic system permanent magnetism roller magnetic separator, belongs to magnetic plant field, mine.
Background technology
Utilize the magnetic contrast between mineral to make different minerals granule realize separating in non-uniform magnetic field, be to sort magnetic The prefered method of property mineral.The existing mode sorting magnetic mineral has wet magnetic separation and dry type magnetic separation.Complicated with wet magnetic separation Technological process and application limitation are compared, and dry-type magnetic selection apparatus has that simple in construction, small investment, operating cost is low, energy-conserving and environment-protective Etc. a series of advantages.It addition, wet magnetic separator needs to use water as working media, it is impossible in hydropenia than more serious area extensively Use, but also surrounding enviroment may be polluted.Therefore, in recent years, dry-type magnetic extractor has obtained the development of very fast degree.
Along with high-pressure roller mill is in the extensive utilization in grinding field, conventional dry magnetic separator cannot meet growing Demand of processing quantity.Being additionally, since the raw meal particle size after high-pressure roller mill extruding and be typically smaller than 2mm, conventional dry magnetic separator sorts Valuable mineral out is usually wrapped up in due to disk pack and the effect that is mingled with seriously thus causes meeting the demand of smelting, it is necessary to use Other method does deep choosing further just can obtain qualified high-grade concentrate product.Furthermore, owing to China's iron mine selects with difficulty Lean iron mine, weakly magnetic iron ore and mineral intergrowth be main, the grade requirement of sorting mineral always those skilled in the art hope The problem solved.Therefore, magnetic plant high sharpness of separation, maximizing becomes the developing direction of magnetic plant now.
Use dry-type magnetic extractor when carrying out separation operation, due to the extreme inhomogeneities of all kinds of iron ore disseminated grain sizes, for Obtain the concentrate product of higher metal grade, it is often necessary to carry out broken or fine grinding by the minimum disseminated grain size of mineral, thus The iron mineral making a part reach monomer dissociation produces unnecessary overground phenomenon, causes the loss of amount of metal, also increases simultaneously Add the consumption of energy.Be additionally, since valuable mineral by overground seriously, although weak magnetic operation to reclaim iron mine effect preferable, but arteries and veins It is serious that stone is mingled with phenomenon, in order to upgrade, have to reduce the response rate, thus causes tailings grade higher.In other words, Existing dry-type magnetic extractor cannot solve the contradiction between finished product ore deposit grade and the response rate.
Utility model content
The purpose of this utility model is: provide a kind of dry type many magnetic system permanent magnetism roller magnetic separator, for continuous processing warp A large amount of strongly magnetic materials after high-pressure roller mill extruding, utilize the big cornerite magnetic architecture that this magnetic separator is exclusive, sub-elect complete Iron ore concentrate that Iron grade is the highest, the alap mine tailing of Armco magnetic iron content, and containing the more chats of intergrowth;Make magnetic The work efficiency of the separation operation of property mineral has had great lifting, the energy consumption of processed in units amount to be reduced to extremely low degree, Simplify beneficiation flowsheet.Solve existing dry-type magnetic extractor and cannot solve the contradiction between finished product ore deposit grade and the response rate, it is thus possible to The above-mentioned problems of the prior art of effective solution.
The purpose of this utility model is to be realized by following technical proposals: the permanent magnetism roller magnetic separation of a kind of dry type many magnetic system Machine, including magnetic separator housing, is provided with permanent magnetism roller in magnetic separator housing, during permanent magnetism roller includes the outer cylinder rotated and is positioned at The shaft core in portion, magnetic separator housing be arranged over feeder and dust arrester installation, the lower section of magnetic separator housing be provided with mine tailing mouth, in Mine mouth and concentrate mouth, be provided with combination magnetic system in permanent magnetism roller, described combination magnetic system includes presetting magnetic system, throwing tail magnetic system and selected magnetic System, presets magnetic system, throwing tail magnetic system and selected magnetic system and externally sets gradually in rotary drum direction, preset magnetic system and feeder Material inlet is corresponding, presets arranging of magnetic system and sorted materials can be made to be layered according to the power of beads magnetic, follow-up Throw the effect of tail operation.Throwing tail magnetic system corresponding with mine tailing mouth, throwing tail magnetic system can make the Armco magnetic iron content of gained mine tailing as far as possible Minimum.Selected magnetic system is corresponding with middle mine mouth, by the setting of middle mine mouth, can obtain the concentrate product that grade is the highest, again Can jettisoning clean mine tailing as much as possible, and the chats majority obtained belongs to the lean intergrowth granule that degree of dissociation is inadequate, need into The pulverizing and jevigating of one step, thus solve the contradiction between grade and the metal recovery rate of concentrate product at one stroke;Not only make material The energy consumption of processed in units amount is reduced to extremely low degree, also simplify the beneficiation flowsheet of whole system simultaneously.Selected magnetic system Afterbody is corresponding with concentrate mouth.
As a kind of optimal way, the rear of described selected magnetic system is without magnetic transition region.
As a kind of optimal way, between mine tailing mouth and middle mine mouth, it is provided with splicing swash plate.
As a kind of optimal way, the mouth that gathers dust of described dust arrester installation is correspondingly arranged in the top of concentrate mouth.
As a kind of optimal way, wherein: the magnetic field intensity of described default magnetic system is 32-500kA/m;Described throwing tail magnetic system Magnetic field intensity >=400kA/m;Described selected magnetic system is formed by territory, several strong magnetic area and territory, several weak magnetic area alternate combinations;Qiang Ci The magnetic field intensity in region is 130-160kA/m, the magnetic field intensity≤50kA/m in territory, weak magnetic area.By use territory, multiple strong magnetic area and The magnetic system arrangement mode of territory, multiple weak magnetic area alternate combinations, can make magnetic-particle in material constantly picking up-fall-inhale The repetitive process rise-fallen obtains seperator meeting repeatedly, thus solves disk pack and wrap up in the tradition difficulty with magnetic separation circle of magnetic clutch Za Deng Topic so that concentrate grade is substantially improved.
As a kind of optimal way, the arc length in territory, strong magnetic area is 80-100mm, the arc length≤130mm in territory, weak magnetic area.
As a kind of optimal way, wherein: described selected magnetic system is arc, and the radian corresponding to its arc is for shaft core to be The 30-110 degree in the center of circle.
As a kind of optimal way, wherein: described default magnetic system is arc, and the radian corresponding to its arc is for shaft core to be The 30-110 degree in the center of circle.
As a kind of optimal way, wherein: described throwing tail magnetic system is arc, and the radian corresponding to its arc is for shaft core to be The 30-110 degree in the center of circle.
Compared with prior art, the beneficial effects of the utility model: this utility model dry type many magnetic system permanent magnetism roller magnetic separation Machine, simple in construction, spaces compact, floor space are relatively fewer, maintain easily;Can be to the wholegrain level ferromagnetism Ore of 0mm-20mm Precisely throwing tail, strongly magnetic mineral carries out effective grade lifting, its beneficiating efficiency is high, and disposal ability is strong, both can guarantee that Finished product ore deposit grade can improve again metal recovery rate;Thus greatly simplifie the technological process of whole ore dressing;It is applicable to metallurgy, ore deposit The industry such as mountain, chemical industry is the sorting of strongly magnetic mineral after milling equipment grinding.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model dry type many magnetic system permanent magnetism roller magnetic separator.
In figure: magnetic separator housing-1, feeder-2, dust arrester installation-3, outer cylinder-4, shaft core-5 at middle part, combination Magnetic system-6, preset magnetic system-61, throw tail magnetic system-62, and selected magnetic system-63, mine tailing mouth-7, middle mine mouth-8, concentrate mouth-9, splicing is oblique Plate-10, without magnetic transition region-11.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is further described.
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive Speciality and/or step beyond, all can combine by any way, unless specifically stated otherwise, all can by other equivalence or there is class Replaced like the alternative features of purpose, i.e. unless specifically stated otherwise, in a series of equivalences of each feature or similar characteristics Individual embodiment.
As it is shown in figure 1, this utility model dry type many magnetic system permanent magnetism roller magnetic separator for continuous processing through high-pressure roller mill A large amount of strongly magnetic materials after extruding, put into magnetic separator by the wholegrain level ferromagnetism Ore of 0mm-20mm.In magnetic separator housing 1 Being provided with permanent magnetism roller, permanent magnetism roller includes the outer cylinder 4 rotated and the shaft core 5 being positioned at middle part, and outer cylinder 4 is counterclockwise Rotating, shaft core 5 is constantly in fixed state.Magnetic separator housing 1 be arranged over feeder 2 and dust arrester installation 3;Forever Combination magnetic system 6 it is provided with in magnetic roller.The iron ore fed from feeder 2 sends to the top of permanent magnetism roller by feeder Region, and the layering that is magnetized under the effect in permanent magnetism roller magnetized area magnetic field.The mode of its magnetization layering is: ferromagnetism granule quilt Magnetic field magnetization is also connected into magnetic linkage each other, and final absorption is at the innermost layer of roller surface;Although the intergrowth granule of weak magnetic Also it is magnetized but can not form magnetic linkage each other, finally adsorb in the outside of ferromagnetism magnetic linkage;Nonmagnetic gangue particle then by Above magnetic-particle has been extruded into outermost layer.The storied placement state of this material is conducive to ensuing throwing tail to sort process.
Described combination magnetic system 6 includes presetting magnetic system 61, throws tail magnetic system 62 and selected magnetic system 63, default magnetic system 61, throws tail magnetic It is 62 and selected magnetic system 63 externally cylinder 4 rotation direction, i.e. counterclockwise sets gradually.The lower section of magnetic separator housing 1 sets There are mine tailing mouth 7, middle mine mouth 8 and concentrate mouth 9.Default magnetic system 61 is corresponding with the material inlet of feeder 2, throws tail magnetic system 62 and mine tailing Mouth 7 is corresponding, and selected magnetic system 63 is corresponding with middle mine mouth 8, is provided with splicing swash plate 10 between mine tailing mouth 7 and middle mine mouth 8.Selected magnetic system The afterbody of 63 is corresponding with concentrate mouth 9.The mouth that gathers dust of described dust arrester installation 3 is correspondingly arranged in the top of concentrate mouth 9.
Preset magnetic system material magnetize layering to be also beneficial to throw the follow-up throwing tail operation of tail magnetic system, the magnetic field of default magnetic system Intensity is 32-500kA/m.In order to ensure that all of magnetic material can be held, thus obtain the tail that Armco magnetic iron content is the lowest Ore deposit, the magnetic field intensity of described throwing tail magnetic system arranges the highest, throws the magnetic field intensity >=400kA/m of tail magnetic system.Such design, Can make to sort between strongly magnetic material and weakly magnetic material and non-magnetic material ratio more thoroughly, reduce nonmagnetics as far as possible Material is elected to be the impact of industry to subsequent fine, can avoid repeating to sort to non-magnetic material, to reduce the overall of whole system simultaneously Energy consumption, and improve the concentrate grade of mineral.
In order to promote concentrate grade as much as possible, it is achieved efficiently separating between ferromagnetism granule and sub magnetic debris, institute State selected magnetic system 63 to be formed by territory, several strong magnetic area and territory, several weak magnetic area alternate combinations;The magnetic field intensity in territory, strong magnetic area is 130- 160kA/m, the magnetic field intensity≤50kA/m in territory, weak magnetic area.The arc length in territory, strong magnetic area is 80-100mm, the arc length in territory, weak magnetic area≤ 130mm.When magnetic material enters into the strong magnetic working range in selected district, all magnetic-particles all can be attracted to roller table Face;And when magnetic material enters into the weak magnetic working range in selected district, owing to the magnetic field intensity in this region is the faintest, magnetic field Suction is the most very little, and the magnetic-particle of the overwhelming majority will be along parabolic path under the effect of self gravitation and inertia force Starting to depart from roller surface, just these magnetic-particles depart from roller surface certain distance when, they have been introduced into again Next adjacent territory, strong magnetic area, can be adsorbed onto the surface of roller again again.So, by selected magnetic system to these magnetic The repetitive process that grain constantly picks up-falls-picks up-fall so that obtain repeatedly between ferromagnetism granule and sub magnetic debris Seperator meeting, solve disk pack and wrap up in and the conventional difficulties of magnetic clutch Za Deng magnetic separation circle so that concentrate grade is greatly promoted.
It is without magnetic transition region 11 at the rear of described selected magnetic system 63.Magnetic material goes successively in the rotation along with cylinder During to selected district, can start to depart from roller surface along parabolic path, just at this under the effect of self gravitation and inertia force The when that a little magnetic-particles departing from roller surface to certain distance, they have had been introduced into first strong magnetic area of selected magnetic system Territory, the granule of part relatively high magnetism will be adsorbed onto the surface of roller again, and the more weak mineral grain of magnetic then can fall The upper surface being positioned at the splicing swash plate below without magnetic transitional region continues to slide downwards, wherein has the mineral that part magnetic is the strongest Granule is adsorbed to the surface of roller under the action of a magnetic field of selected magnetic system the most again, and the most weak granule of remaining magnetic is then Eventually drop into the middle mine mouth of lower section.
It addition, described selected magnetic system 63 is arc, the radian corresponding to its arc is the 30-110 with shaft core 5 as the center of circle Degree, described default magnetic system 61 is arc, and the radian corresponding to its arc is the 30-110 degree with shaft core 5 as the center of circle.Described throwing tail Magnetic system 62 is arc, and the radian corresponding to its arc is the 30-110 degree with shaft core 5 as the center of circle.Or other arc range is also Magnetic separation effect can be reached.Permanent magnetism roller uses the mode of many magnetic system combination, its total Guide canel >=240 °;Utilize this magnetic separation The big cornerite magnetic architecture that machine is exclusive so that sort the most efficient, it is possible to sub-elect the Haematite that full Iron grade is the highest Ore deposit, the alap mine tailing of Armco magnetic iron content, and contain the chats that intergrowth is more.This not only makes the sorting of magnetic mineral make The work efficiency of industry has had great lifting, also makes the energy consumption of processed in units amount be reduced to extremely low degree, the most also letter Change beneficiation flowsheet.
Described in the utility model, it is as follows that the throwing tail of material sorts process:
The outer surface of permanent magnetism roller has been divided into three different regions by combination magnetic system, is respectively as follows: and is positioned at roller top Magnetized area, be positioned at roller side throw tail region and be positioned at the selected district bottom roller.Along with the rotation of outer cylinder, material quilt Bring the throwing tail region being positioned at roller side into.Magnetic-particle in material is thrown powerful magnetic field, tail region and is adsorbed at roller surface, and Along with the rotation of outer cylinder continues to bring the selected district being positioned at bottom roller into;Nonmagnetic gangue particle is then at the weight of self Depart from roller surface under the effect of power and Cylinder Centrifuge power, fall into mine tailing mouth.Owing to the magnetic field intensity in selected district throws tail relatively District wants much weaker, magnetic field the absorption affinity of magnetic-particle is also wanted weak a lot.Entering the magnetic material in selected district, part magnetic is more weak Intergrowth granule can be thrown off roller surface under the effect of self gravitation and centrifugal force and fall in mine mouth, and magnetic is relatively Strong high-grade concentrate granule adsorbs the most under the influence of a magnetic field at roller surface and finally along with the rotation of cylinder is carried Enter concentrate mouth.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model Protection domain within.

Claims (9)

1. dry type many magnetic system permanent magnetism roller magnetic separator, including magnetic separator housing (1), magnetic separator housing is provided with permanent magnetism in (1) Roller, permanent magnetism roller includes the outer cylinder (4) rotated and is positioned at the shaft core (5) at middle part, being arranged over of magnetic separator housing (1) Feeder (2) and dust arrester installation (3), the lower section of magnetic separator housing (1) is provided with mine tailing mouth (7), middle mine mouth (8) and concentrate mouth (9), it is characterised in that: being provided with combination magnetic system (6) in permanent magnetism roller, described combination magnetic system (6) includes presetting magnetic system (61), throwing tail Magnetic system (62) and selected magnetic system (63), preset magnetic system (61), throw tail magnetic system (62) and selected magnetic system (63) externally cylinder (4) turn Dynamic direction sets gradually, and default magnetic system (61) is corresponding with the material inlet of feeder (2), throws tail magnetic system (62) and mine tailing mouth (7) Correspondence, selected magnetic system (63) is corresponding with middle mine mouth (8), and the afterbody of selected magnetic system (63) is corresponding with concentrate mouth (9).
2. as claimed in claim 1 dry type many magnetic system permanent magnetism roller magnetic separator, it is characterised in that: described selected magnetic system (63) Rear is without magnetic transition region (11).
3. as claimed in claim 1 dry type many magnetic system permanent magnetism roller magnetic separator, it is characterised in that: at mine tailing mouth (7) and chats It is provided with splicing swash plate (10) between mouth (8).
4. as claimed in claim 1 dry type many magnetic system permanent magnetism roller magnetic separator, it is characterised in that: described dust arrester installation (3) The mouth that gathers dust is correspondingly arranged in the top of concentrate mouth (9).
5. the dry type many magnetic system permanent magnetism roller magnetic separator as described in arbitrary in claim 1-4, it is characterised in that: described default magnetic The magnetic field intensity of system (61) is 32-500kA/m;Magnetic field intensity >=the 400kA/m of described throwing tail magnetic system (62);Described selected magnetic system (63) formed by territory, several strong magnetic area and territory, several weak magnetic area alternate combinations;The magnetic field intensity in territory, strong magnetic area is 130-160kA/m, Magnetic field intensity≤the 50kA/m in territory, weak magnetic area.
6. as claimed in claim 5 dry type many magnetic system permanent magnetism roller magnetic separator, it is characterised in that: the arc length in territory, strong magnetic area is 80-100mm, the arc length≤130mm in territory, weak magnetic area.
7. as claimed in claim 1 dry type many magnetic system permanent magnetism roller magnetic separator, it is characterised in that: described selected magnetic system (63) is Arc, the radian corresponding to its arc is with the shaft core (5) the 30-110 degree as the center of circle.
8. as claimed in claim 1 dry type many magnetic system permanent magnetism roller magnetic separator, it is characterised in that: described default magnetic system (61) is Arc, the radian corresponding to its arc is with the shaft core (5) the 30-110 degree as the center of circle.
9. as claimed in claim 1 dry type many magnetic system permanent magnetism roller magnetic separator, it is characterised in that: described throwing tail magnetic system (62) is Arc, the radian corresponding to its arc is with the shaft core (5) the 30-110 degree as the center of circle.
CN201620343030.7U 2016-04-22 2016-04-22 Many magnetism of dry -type are permanent magnetism roller magnet separator Active CN205650331U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620343030.7U CN205650331U (en) 2016-04-22 2016-04-22 Many magnetism of dry -type are permanent magnetism roller magnet separator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620343030.7U CN205650331U (en) 2016-04-22 2016-04-22 Many magnetism of dry -type are permanent magnetism roller magnet separator

Publications (1)

Publication Number Publication Date
CN205650331U true CN205650331U (en) 2016-10-19

Family

ID=57401328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620343030.7U Active CN205650331U (en) 2016-04-22 2016-04-22 Many magnetism of dry -type are permanent magnetism roller magnet separator

Country Status (1)

Country Link
CN (1) CN205650331U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105665129A (en) * 2016-04-22 2016-06-15 成都利君科技有限责任公司 Dry-type magnetic separator with multiple magnetic systems and permanent magnetic roller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105665129A (en) * 2016-04-22 2016-06-15 成都利君科技有限责任公司 Dry-type magnetic separator with multiple magnetic systems and permanent magnetic roller

Similar Documents

Publication Publication Date Title
CN103736663B (en) A kind of Magnetite beneficiation method
CN103272694B (en) Magnetic-gravity separation technology for Anshan type lean magnetite
CN102527504A (en) Magnetic ore dressing method
CN202087414U (en) Dry type magnetic separation device for coarse-particle magnetic iron ores
CN101716553A (en) Kiln slag processing technology of zinc volatilizing kiln
CN102189038A (en) Preliminary separation process for ferromagnetic ore separation
CN107029871A (en) A kind of beneficiation method of magnetic composite ore
CN104399578B (en) Pre-selection method for low-grade hematite-containing waste rock
CN105772218A (en) Iron ore circulating classification beneficiation method and dry beneficiation machine applied to method
CN106755650B (en) Slag produces high activity steel-making slag powder and the technique of inert mineral product
CN105536984B (en) A kind of magnetic selection method having both tailings discarding by preconcentration and thickness grading and three product magnetic separators
CN205650331U (en) Many magnetism of dry -type are permanent magnetism roller magnet separator
CN104492590A (en) Complex iron ore sorting method
CN104841550B (en) A kind of resource of tailings recovery process
WO2016187862A1 (en) Tailings resource recovery technology
CN104437844B (en) Improve method and the magnetic plant of sorting district, magnetic field magnetic field intensity
CN202129144U (en) Tailing residue dry separation machine
CN110586315B (en) Full-dry type iron ore sorting method
CN105944830B (en) A kind of magnetic separator
CN102259058A (en) New process of closing in three sections and preselecting and crushing in two sections
CN104874470B (en) A kind of beneficiation method
CN109513521A (en) A kind of ore-dressing technique recycling iron from asbestos tailings
CN109590109A (en) Compound poor iron ore pre-selection technique
CN104941797B (en) A kind of mineral dressing method
CN201711212U (en) Coarse-particle magnetic iron ore wet pre-concentration magnetic separator

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model