CN209156147U - The MAGNETIC HYDROCYCLONES selected for weak magnetic mineral and magnetic reconnection close separation system - Google Patents
The MAGNETIC HYDROCYCLONES selected for weak magnetic mineral and magnetic reconnection close separation system Download PDFInfo
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- CN209156147U CN209156147U CN201821815430.9U CN201821815430U CN209156147U CN 209156147 U CN209156147 U CN 209156147U CN 201821815430 U CN201821815430 U CN 201821815430U CN 209156147 U CN209156147 U CN 209156147U
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Abstract
The utility model 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.The utility model also provides a kind of magnetic reconnection conjunction separation system.The system that the magnetic reconnection of the utility model 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 utility model belongs to mineral manufacture field more particularly to a kind of cyclone selected for weak magnetic mineral and divides
Select system.
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.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of to mention in background above technology and defect, is provided
A kind of MAGNETIC HYDROCYCLONES selected for weak magnetic mineral and magnetic reconnection close separation system, which utilizes
Magnetic field come strengthen hydrocyclone to the selected of weak magnetic mineral, the rate of recovery of fine fraction weak magnetic mineral is higher.To solve
Above-mentioned technical problem, the utility model proposes technical solution 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 utility model: by
Uniformly distributed opposite polarity strong permanent magnetic iron around hydrocyclone, the trend for the magnetic line of force that permanent magnet generates is from a permanent magnet
N moves towards pole the pole S of adjacent permanent magnet, and most intensive close to the magnetic line of force at hydrocyclone, magnetic field gradient is by hydrocyclone
Portion is directed toward outside, thus can generate an outside magnetic field force for weakly magnetic mineral composition granule therein, and magnetic mineral is except centrifugation
Outside power, also by magnetic force from inside to outside, thus it is more advantageous into sand setting, becomes magnetic product.The introducing of magnetic force can be big
Increase the rate of recovery of refinement grade weak magnetic mineral.
As a general technical idea, the utility model also provides a kind of magnetic reconnection and closes separation system, including for pair
Weak magnetic mineral carries out the magnetic separator of roughing and for carrying out selected MAGNETIC HYDROCYCLONES to weak magnetic mineral.
The utility model also provides a kind of method for closing separation system progress magnetic reconnection conjunction sorting using above-mentioned magnetic reconnection, packet
Include 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 utility model are:
1, the MAGNETIC HYDROCYCLONES of the utility model adds permanent magnet in the outer wall of hydrocyclone, forms a kind of centrifugation
Power-magnetic force compound force field screening installation, can be under the premise of obtaining qualified concentrate products using the invigoration effect in magnetic field
The rate of recovery of fine fraction weak magnetic mineral is improved as far as possible.
2, the magnetic reconnection of the utility model closes separation system and makes full use of the ratio magnetic between weak magnetic mineral and gangue mineral
The difference for changing coefficient and specific gravity, for weak magnetic mineral it is selected in, have environmental friendly, low energy consumption, and the efficiency of separation is high, cost
It is low, the advantages that can easily be accommodated and control.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the cutting structural schematic diagram of MAGNETIC HYDROCYCLONES in the utility model embodiment 1.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the process flow chart for the method that the utility model magnetic reconnection 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
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, meticulously describes, but the protection scope of the utility model is not limited to embodiment in detail below.
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, and being not intended to limitation, this is practical
Novel protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the utility model can lead to
Market is crossed to be 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 (6)
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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821815430.9U CN209156147U (en) | 2018-11-06 | 2018-11-06 | The MAGNETIC HYDROCYCLONES selected for weak magnetic mineral and magnetic reconnection close separation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201354A (en) * | 2018-11-06 | 2019-01-15 | 中南大学 | MAGNETIC HYDROCYCLONES, magnetic reconnection conjunction separation system and the magnetic reconnection selected for weak magnetic mineral closes the method sorted |
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2018
- 2018-11-06 CN CN201821815430.9U patent/CN209156147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201354A (en) * | 2018-11-06 | 2019-01-15 | 中南大学 | MAGNETIC HYDROCYCLONES, magnetic reconnection conjunction separation system and the magnetic reconnection selected for weak magnetic mineral closes the method sorted |
| CN109201354B (en) * | 2018-11-06 | 2023-10-31 | 中南大学 | Magnetic hydrocyclone, combined magnetic-gravity separation system and combined magnetic-gravity separation method for weakly magnetic mineral concentration |
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