CN109201354A - MAGNETIC HYDROCYCLONES, magnetic reconnection conjunction separation system and the magnetic reconnection selected for weak magnetic mineral closes the method sorted - Google Patents
MAGNETIC HYDROCYCLONES, magnetic reconnection conjunction separation system and the magnetic reconnection selected for weak magnetic mineral closes the method sorted Download PDFInfo
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- CN109201354A CN109201354A CN201811315659.0A CN201811315659A CN109201354A CN 109201354 A CN109201354 A CN 109201354A CN 201811315659 A CN201811315659 A CN 201811315659A CN 109201354 A CN109201354 A CN 109201354A
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- Prior art keywords
- magnetic
- mineral
- hydrocyclones
- weak
- reconnection
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 57
- 239000011707 mineral Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000000926 separation method Methods 0.000 title claims abstract description 16
- 239000006148 magnetic separator Substances 0.000 claims abstract description 24
- 239000012141 concentrate Substances 0.000 claims abstract description 23
- 239000004576 sand Substances 0.000 claims abstract description 18
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- ZXOKVTWPEIAYAB-UHFFFAOYSA-N dioxido(oxo)tungsten Chemical compound [O-][W]([O-])=O ZXOKVTWPEIAYAB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000006249 magnetic particle Substances 0.000 description 6
- 238000007885 magnetic separation Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910052595 hematite Inorganic materials 0.000 description 4
- 239000011019 hematite Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910021646 siderite Inorganic materials 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- 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
- B03C1/002—High gradient magnetic separation
-
- 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
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
-
- 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
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/002—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external filters
Landscapes
- Cyclones (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of MAGNETIC HYDROCYCLONESs selected for weak magnetic mineral, including hydrocyclone, the hydrocyclone outer wall is uniformly provided with multiple permanent magnets for being used to form magnetic field gradient, and the direction of the magnetic field gradient is internally pointed to outside by hydrocyclone.It closes separation system the present invention also provides a kind of magnetic reconnection and closes separation system using above-mentioned magnetic reconnection and carry out the method that magnetic reconnection closes sorting, comprising the following steps: S1: roughing being carried out to weak magnetic mineral using intensity magnetic separator or high gradient magnetic separator and obtains rough concentrate；S2: rough concentrate obtained in S1 being sent and is sorted to obtain sand setting and overflow into MAGNETIC HYDROCYCLONES, is collected sand setting and is obtained concentrate product.The method that magnetic reconnection of the invention closes sorting makes full use of the difference of specific susceptibility and specific gravity between weak magnetic mineral and gangue mineral, for weak magnetic mineral it is selected in, have that low energy consumption, the efficiency of separation is high, at low cost, the advantages that can easily be accommodated and control.
Description
Technical field
The invention belongs to mineral manufacture field more particularly to a kind of cyclones selected for weak magnetic mineral, sorting system
The method for separating of system and weak magnetic mineral.
Background technique
Weakly magnetic mineral, which produces resource, mainly bloodstone, limonite, siderite, ilmenite, wolframite, manganese ore and tantalum Biobium rare-earth
Mine etc..These weakly magnetic minerals produce raw material and have played important function in China's economic development.High-gradient magnetic separation is processing weak magnetic
The common method of mineral, but since there are the mechanical entrainment of gangue mineral, single high-gradient magnetic separation operation is difficult to obtain qualification
Weak magnetic mineral concentrate product, high-gradient magnetic separation is generallyd use in production and carries out roughing, gained rough concentrate carries out flotation essence again
Choosing obtains final concentrate product, and process flow is complicated, and floating agent consumption is big, and production target is unstable, and can generate pollution.Phase
Than in Combination of magnetic separation flotation sorting process, magnetic reconnection closes sorting process and is paid more and more attention.
In recent years, the roughing that weak magnetic mineral is carried out using high-gradient magnetic separation is carried out obtained coarse-fine mining centrifuge
It is selected, preferable separation index can be obtained, but on the whole, the rate of recovery of particulate weak magnetic mineral is still relatively low.It develops novel
Weak magnetic mineral magnetic reconnection closes sorting process and equipment, is of great significance to the clean and effective processing and utilization of weak magnetic mineral.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, one kind is provided
MAGNETIC HYDROCYCLONES, magnetic reconnection conjunction separation system and the magnetic reconnection selected for weak magnetic mineral closes the method sorted, the magnetic
Power hydrocyclone strengthened using magnetic field hydrocyclone to the selected of weak magnetic mineral, fine fraction weak magnetic mineral returns
Yield is higher.In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of MAGNETIC HYDROCYCLONES selected for weak magnetic mineral, including hydrocyclone, the hydrocyclone
Outer wall is uniformly provided with multiple permanent magnets for being used to form magnetic field gradient, the direction of the magnetic field gradient by hydrocyclone inside
It is directed toward external.
In above-mentioned MAGNETIC HYDROCYCLONES, it is preferred that the permanent magnet is in the polarity close to hydrocyclone outer wall side
It is arranged alternately, and the permanent magnet is each perpendicular to the outer wall of the hydrocyclone.The alternating polarity arrangement of permanent magnet can make
The pole S of adjacent permanent magnet is moved towards in the pole N of one permanent magnet, most intensive close to the magnetic line of force at hydrocyclone, such structure
Design can guarantee that the magnetic force at hydrocyclone outer wall is maximum, and effect is best.
In above-mentioned MAGNETIC HYDROCYCLONES, it is preferred that the hydrocyclone includes cylindrical section and circular cone interconnected
Section, the cylindrical section are located at the top of the conical section, and the top of the cylindrical section is equipped with overflow pipe, the side wall of the cylindrical section
Top is equipped with feed port, and the bottom of the conical section is equipped with sand setting nozzle.
In above-mentioned MAGNETIC HYDROCYCLONES, it is preferred that the inside diameter ranges of the cylindrical section are 50-200mm, and length range is
50-150mm, the range of taper of the conical section are 5-20 °, and the inside diameter ranges of the feed port are 10-40mm, the overflow pipe
Inside diameter ranges be 10-50mm, depth bounds 30-150mm, the inside diameter ranges of the sand setting nozzle are 5-30mm.
In above-mentioned MAGNETIC HYDROCYCLONES, it is preferred that the magnetic field size that the permanent magnet generates is 0.2-0.6T.Magnetic field is strong
Degree size can be selected according to the size of hydrocyclone, and general magnetic field range is about 0.2-0.6T.
In general hydrocyclone, weak magnetic mineral density is typically larger than gangue mineral, thus can preferentially enter on earth
Becoming magnetic product in stream, gangue mineral, which enters, becomes non-magnetic product in overflow, but since mineral grain granularity also can
The trend of mineral is produced a very large impact, centrifugal force suffered by the small magnetic mineral particles of granularity is also smaller, thus is easily accessible excessive
It is lost in miscarriage product, the rate of recovery is caused to decline.The design principle of MAGNETIC HYDROCYCLONES is as follows in the present invention: by waterpower
Uniformly distributed opposite polarity strong permanent magnetic iron around cyclone, the trend for the magnetic line of force that permanent magnet generates is from the pole N of a permanent magnet
The pole S of adjacent permanent magnet is moved towards, most intensive close to the magnetic line of force at hydrocyclone, magnetic field gradient inside hydrocyclone by referring to
To outside, thus an outside magnetic field force can be generated for weakly magnetic mineral composition granule therein, magnetic mineral in addition to centrifugal force,
It also by magnetic force from inside to outside, thus is more advantageous into sand setting, becomes magnetic product.The introducing of magnetic force can greatly increase
The rate of recovery of fine fraction weak magnetic mineral.
As a general technical idea, the present invention also provides a kind of magnetic reconnections to close separation system, including for weak magnetic
Property mineral carry out roughing magnetic separator and for carrying out selected MAGNETIC HYDROCYCLONES to weak magnetic mineral.
As a general technical idea, separation system progress magnetic weight is closed using above-mentioned magnetic reconnection the present invention also provides a kind of
The method of combined sorting, comprising the following steps:
S1: roughing is carried out to weak magnetic mineral using intensity magnetic separator or high gradient magnetic separator and obtains rough concentrate；
S2: rough concentrate obtained in S1 being sent and is sorted to obtain sand setting and overflow into MAGNETIC HYDROCYCLONES, is collected
Sand setting obtains concentrate product.
In the above method, it is preferred that the weak magnetic mineral includes bloodstone, limonite, siderite, manganese ore, wolframite
Any one of with tantalum Biobium rare-earth mine.
In the above method, it is preferred that first pass through crushing before the weak magnetic mineral progress roughing, processing of sizing mixing, crushing is
Weak magnetic mineral is crushed to -200 mesh and accounts for 80-95% by finger, is sized mixing and is referred to that smashed weak magnetic mineral is adjusted to quality is dense
Degree is the slurries of 25-35%.
In the above method, it is preferred that the roughing carries out under conditions of 5000-10000GS.
In the above method, it is preferred that sent again after the rough concentrate is adjusted to the slurries that mass concentration is 30-45% to magnetic
It is sorted in power hydrocyclone.
Compared with the prior art, the advantages of the present invention are as follows:
1, MAGNETIC HYDROCYCLONES of the invention adds permanent magnet in the outer wall of hydrocyclone, forms a kind of centrifugal force-
The compound force field screening installation of magnetic force, using the invigoration effect in magnetic field, under the premise of obtaining qualified concentrate products, can use up can
The rate of recovery of the raising fine fraction weak magnetic mineral of energy.
2, magnetic reconnection of the invention closes separation system and method makes full use of the ratio between weak magnetic mineral and gangue mineral
The difference of susceptibility and specific gravity, for weak magnetic mineral it is selected in, have environmental friendly, low energy consumption, and the efficiency of separation is high, at
This is low, the advantages that can easily be accommodated and control.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of MAGNETIC HYDROCYCLONES in the embodiment of the present invention 1.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the process flow chart for the method that magnetic reconnection of the present invention closes sorting.
Fig. 4 is the structural schematic diagram of magnetic medium in vertical ring high-gradient magnetic separator in embodiment 2.
Fig. 5 is the ring revolving structure schematic diagram of vertical ring high-gradient magnetic separator in embodiment 2.
Marginal data:
1, overflow pipe；2, permanent magnet；3, cylindrical section；5, conical section；6, sand setting nozzle；7, feed port；10, non-magnetic portion；20,
Magnetic-conductance portion；40, change；50, feeding system.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1:
As depicted in figs. 1 and 2, the MAGNETIC HYDROCYCLONES selected for weak magnetic mineral of the present embodiment, including waterpower
Cyclone, hydrocyclone outer wall are uniformly provided with multiple permanent magnets 2 for being used to form magnetic field gradient, and the direction of magnetic field gradient is by water
Power cyclone is internally pointed to outside.
In the present embodiment, permanent magnet 2 is arranged in the alternating polarity close to hydrocyclone outer wall side, and permanent magnet 2 is equal
Perpendicular to the outer wall of hydrocyclone.The highest magnetic field that permanent magnet 2 generates is 0.4T.
In the present embodiment, hydrocyclone includes cylindrical section 3 interconnected and conical section 5, and cylindrical section 3 is located at conical section
5 top, the top of cylindrical section 3 are equipped with overflow pipe 1, are equipped with feed port 7 above the side wall of cylindrical section 3, the bottom of conical section 5 is set
There is sand setting nozzle 6.Cylindrical section 3 and 5 outer wall of conical section are equipped with permanent magnet 2.3 outer wall of cylindrical section is evenly equipped with 7 permanent magnets 2, circular cone
5 outer walls of section are evenly equipped with 8 permanent magnets 2.
In the present embodiment, the internal diameter of cylindrical section 3 is 150mm, and length 150mm, the taper of conical section 5 is 10 °, conical section
Length be 250mm, the internal diameter of feed port 7 is 20mm, and the internal diameter of overflow pipe 1 is 30mm, depth 30-150mm, sand setting nozzle 6
Internal diameter be 20mm.
It includes above-mentioned MAGNETIC HYDROCYCLONES and vertical ring pulsating high gradient magnetic separation that the magnetic reconnection of the present embodiment, which closes separation system,
Machine.
As shown in figure 3, closing separation system using the magnetic reconnection in the present embodiment carries out the side that magnetic reconnection closes separating hematite
Method, comprising the following steps:
S1: being broken to -200 mesh for the weak magnetic ground hematite that grade is 25% and account for 85%, and sizing mixing to mass concentration is 30%,
As to mine；
S2: it is obtained to above-mentioned to mine progress roughing under conditions of 5000-10000GS using pulsating high gradient magnetic separator with vertical ring
The rough concentrate for being 45% to Iron grade, rough concentrate is sized mixing to 35%；
S3: it is sent into MAGNETIC HYDROCYCLONES using pump by feed port 7 and is sorted to obtain sand setting and overflow, give mine pressure
Power is 0.07MPa, collects sand setting and obtains concentrate product, Iron grade 54%.
Embodiment 2:
MAGNETIC HYDROCYCLONES in the present embodiment is in the same manner as in Example 1.
It includes above-mentioned MAGNETIC HYDROCYCLONES and vertical ring high-gradient magnetic separator that the magnetic reconnection of the present embodiment, which closes separation system,.
The method that magnetic reconnection closes separating hematite, including following step are carried out using the MAGNETIC HYDROCYCLONES in the present embodiment
It is rapid:
S1: being broken to -200 mesh for the weak magnetic ground hematite that grade is 25% and account for 80%, and sizing mixing to mass concentration is 35%,
As to mine；
S2: it is obtained slightly to above-mentioned to mine progress roughing under conditions of 5000-10000GS using vertical ring high-gradient magnetic separator
Concentrate sizes mixing rough concentrate to 45%；
S3: it is sent into MAGNETIC HYDROCYCLONES using pump by feed port 7 and is sorted to obtain sand setting and overflow, give mine pressure
Power is 0.07MPa, collects sand setting and obtains concentrate product.
In the present embodiment, vertical ring high-gradient magnetic separator (without containing the flutter generator for applying Pulsating Flow) includes change
40, field generator for magnetic and feeding system 50, feeding system 50 are set to inside change 40, continuously, are uniformly equipped in change 40
Magnetic medium heap, magnetic medium heap are composed of multiple magnetic mediums.Wherein, magnetic medium is successively arranged non-magnetic along ore pulp flow direction
Portion 10 and magnetic-conductance portion 20, non-magnetic portion 10 are fixedly connected with each other with magnetic-conductance portion 20, and the edge in non-magnetic portion 10 is for the smooth of drainage
Curved-surface structure or horn structure (such as semicircle, half elliptic or half diamond shape), magnetic-conductance portion 20 requires it that should be able to generate biggish magnetic
Field range (such as semicircle, half elliptic or half diamond shape), with more collectings to the magnetic-particle in mine.As shown in figure 4, in figure
The non-magnetic portion 10 of the magnetic medium shown and the cross section of magnetic-conductance portion 20 are that semicircle (can also change non-magnetic portion according to demand
10 with the shape of magnetic-conductance portion 20).As shown in figure 5, for 40 structural schematic diagram of change of vertical ring high-gradient magnetic separator in the present embodiment.
In the vertical ring high-gradient magnetic separator of the present embodiment, non-magnetic portion 10 in magnetic medium is towards 40 center of change, change
The faying face of magnetic-conductance portion 20 and non-magnetic portion 10 in the magnetic medium heap of 40 lowermost ends is perpendicular to background magnetic field direction.
Vertical ring high-gradient magnetic separator in the present embodiment has the advantage that the magnetic medium edge of 1, vertical ring high-gradient magnetic separator
Ore pulp flow direction is successively arranged non-magnetic portion 10 and magnetic-conductance portion 20, is situated between with non-magnetic particle by magnetic to the magnetic-particle in mine
When matter, non-magnetic portion 10 does not have magnetic force, will not collecting magnetic-particle, it is basic to mine and due to the drainage in non-magnetic portion 10
All never magnetic-conductance portion 10 can eliminate the accumulation of conventional magnetic medium upstream particle past it without non-magnetic portion 10 is accumulated on,
Magnetic-particle is eliminated in the accumulation of magnetic medium upstream, makes most or all magnetic-particles in magnetic medium builds up downstream, reduces
Direct impact to mine stream to magnetic mineral accumulation region improves the grade of recycling mineral to reduce or eliminate mechanical entrainment.
2, the non-magnetic portion 10 of the magnetic medium of vertical ring high-gradient magnetic separator and magnetic-conductance portion 20 use specific shape, by non-magnetic portion
10 control with the shape of magnetic-conductance portion 20, match with non-magnetic portion 10 with the material of magnetic-conductance portion 20, and generating magnetic medium more has
Conducive to the flow field and magnetic field of magnetic mineral collecting, it can further strengthen the function and effect of magnetic medium, reduce or eliminate mechanical folder
While miscellaneous, strengthen the collecting efficiency of weak magnetic mineral.3, the magnetic medium of vertical ring high-gradient magnetic separator can be directly applied for existing
There is conventional magnetic separator, improving without the structure to present magnetic separator can be used directly, and practical application is more convenient.
It is matched using the vertical ring high-gradient magnetic separator in the present embodiment with MAGNETIC HYDROCYCLONES, on the one hand founds the high ladder of ring
Impurity content is less in the rough concentrate that degree magnetic separator obtains, and grade is higher, on the other hand, the presence of MAGNETIC HYDROCYCLONES,
Under the premise of obtaining qualified concentrate products, the rate of recovery of fine fraction weak magnetic mineral can be improved as far as possible.
Claims (10)
1. a kind of MAGNETIC HYDROCYCLONES selected for weak magnetic mineral, which is characterized in that including hydrocyclone, the water
Power cyclone outer wall is uniformly provided with multiple permanent magnets (2) for being used to form magnetic field gradient, and the direction of the magnetic field gradient is by waterpower
Cyclone is internally pointed to outside.
2. MAGNETIC HYDROCYCLONES according to claim 1, which is characterized in that the permanent magnet (2) is revolved close to waterpower
The alternating polarity arrangement of device outer wall side is flowed, and the permanent magnet (2) is each perpendicular to the outer wall of the hydrocyclone.
3. MAGNETIC HYDROCYCLONES according to claim 1, which is characterized in that the hydrocyclone includes being connected with each other
Cylindrical section (3) and conical section (5), the cylindrical section (3) be located at the top of the conical section (5), the cylindrical section (3) it is upper
Side is equipped with overflow pipe (1), is equipped with feed port (7) above the side wall of the cylindrical section (3), the bottom of the conical section (5) is equipped with
Sand setting nozzle (6).
4. MAGNETIC HYDROCYCLONES according to claim 3, which is characterized in that the inside diameter ranges of the cylindrical section (3) are
50-200mm, length range 50-150mm, the range of taper of the conical section (5) are 5-20 °, the feed port (7) it is interior
Diameter range is 10-40mm, and the inside diameter ranges of the overflow pipe (1) are 10-50mm, depth bounds 30-150mm, the sand setting
The inside diameter ranges of nozzle (6) are 5-30mm.
5. MAGNETIC HYDROCYCLONES described in any one of -4 according to claim 1, which is characterized in that the permanent magnet (2) produces
Raw magnetic field size is 0.2-0.6T.
6. a kind of magnetic reconnection closes separation system, which is characterized in that including for carrying out roughing to weak magnetic mineral magnetic separator and
For carrying out selected MAGNETIC HYDROCYCLONES to weak magnetic mineral, the MAGNETIC HYDROCYCLONES is to appoint in claim 1-5
MAGNETIC HYDROCYCLONES described in one.
7. a kind of magnetic reconnection using described in claim 6 closes separation system and carries out the method that magnetic reconnection closes sorting, feature
It is, comprising the following steps:
S1: roughing is carried out to weak magnetic mineral using intensity magnetic separator or high gradient magnetic separator and obtains rough concentrate；
S2: rough concentrate obtained in S1 being sent and is sorted to obtain sand setting and overflow into MAGNETIC HYDROCYCLONES, collects sand setting
Obtain concentrate product.
8. the method according to the description of claim 7 is characterized in that the weak magnetic mineral includes bloodstone, limonite, sparring
Any one of mine, manganese ore, wolframite and tantalum Biobium rare-earth mine.
9. method according to claim 7 or 8, which is characterized in that the weak magnetic mineral first passes through powder before carrying out roughing
Broken, processing of sizing mixing, crushing refer to that weak magnetic mineral, which is crushed to -200 mesh, accounts for 80-95%, sizes mixing and refers to smashed weak magnetic
Property mineral be adjusted to mass concentration be 25-35% slurries.
10. method according to claim 7 or 8, which is characterized in that it is 30- that the rough concentrate, which is adjusted to mass concentration,
It send after 45% slurries and is sorted into MAGNETIC HYDROCYCLONES again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315659.0A CN109201354B (en) | 2018-11-06 | 2018-11-06 | Magnetic hydrocyclone, combined magnetic-gravity separation system and combined magnetic-gravity separation method for weakly magnetic mineral concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315659.0A CN109201354B (en) | 2018-11-06 | 2018-11-06 | Magnetic hydrocyclone, combined magnetic-gravity separation system and combined magnetic-gravity separation method for weakly magnetic mineral concentration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109201354A true CN109201354A (en) | 2019-01-15 |
| CN109201354B CN109201354B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811315659.0A Active CN109201354B (en) | 2018-11-06 | 2018-11-06 | Magnetic hydrocyclone, combined magnetic-gravity separation system and combined magnetic-gravity separation method for weakly magnetic mineral concentration |
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| CN (1) | CN109201354B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794353A (en) * | 2019-03-04 | 2019-05-24 | 太原理工大学 | A kind of three product radial magnetic field magnetic force cyclones for magnetic iron ore sorting classifying |
| CN111036389A (en) * | 2019-05-17 | 2020-04-21 | 成都市锐晨科技有限公司 | Automatic control hydraulic magnetic force short cone swirler ore dressing system |
| CN111871595A (en) * | 2020-07-09 | 2020-11-03 | 江西铜业股份有限公司 | Pre-selection method of molybdenum-containing copper concentrate |
| CN113666498A (en) * | 2021-08-06 | 2021-11-19 | 同济大学 | Ferrocyanite separation and kieselguhr recovery device and method for enhanced nitrogen and phosphorus removal system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794353A (en) * | 2019-03-04 | 2019-05-24 | 太原理工大学 | A kind of three product radial magnetic field magnetic force cyclones for magnetic iron ore sorting classifying |
| CN109794353B (en) * | 2019-03-04 | 2021-08-17 | 太原理工大学 | Three-product radial magnetic field magnetic cyclone for magnetite separation and classification |
| CN111036389A (en) * | 2019-05-17 | 2020-04-21 | 成都市锐晨科技有限公司 | Automatic control hydraulic magnetic force short cone swirler ore dressing system |
| CN111871595A (en) * | 2020-07-09 | 2020-11-03 | 江西铜业股份有限公司 | Pre-selection method of molybdenum-containing copper concentrate |
| CN113666498A (en) * | 2021-08-06 | 2021-11-19 | 同济大学 | Ferrocyanite separation and kieselguhr recovery device and method for enhanced nitrogen and phosphorus removal system |
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