CN107552226B - A kind of weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way - Google Patents
A kind of weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way Download PDFInfo
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Abstract
The invention discloses a kind of weak magnetic powder echelon permanent-magnet high gradient concentration equipments of continous way, comprising: rack, material inlet, concentrate discharge gate, tailing discharge gate；Outer magnetic pole magnetic yoke, internal magnetic pole magnetic yoke, magnetic matrix cylinder；Rotation axis；Internal magnetic pole, outer magnetic pole, outer magnetic pole armouring arc-shaped permanent magnet, outer magnetic pole squeeze arc-shaped permanent magnet, internal magnetic pole armouring arc-shaped permanent magnet, internal magnetic pole and squeeze arc-shaped permanent magnet, magnetic matrix；Magnetic separator offer three-level step sorting area, magnetic field strength successively enhances from top to bottom, three-level sorting area includes: high performance Nd FeB magnetic source sorting area, common NdFeB magnetic source sorting area, ferrite magnetic source sorting area, and matched magnetic matrix pack completeness is respectively 3-5%, 7-9%, 12-15%.Compared with prior art, the present invention overcomes wet separations using water as many problems of medium bring, saves the complex process flow of water process, not only makes sorting process more simple, but also it is easy to directly reduce operating cost, working service.
Description
Technical field
The present invention relates to a kind of permanent magnet high gradient magnetic separator for handling weak magnetic powder, especially a kind of continous way weak magnetic
Powder echelon permanent-magnet high gradient concentration equipment, the trace heavy metal element suitable for the desulfurization and deashing of particulate coal dust or removing coal
Dry separation, can be widely applied to the fields such as the energy, electric power, metallurgy, environmental protection.
Background technique
Contain lot of trace harmful element, such as As, Cd, Hg, Pb, Se, Cr in coal, they are moved during coal utilization
Move release and very big negative effect brought to environment, they or be discharged into atmosphere in gaseous state, or be enriched in coal ash and flying dust, to work
Industry equipment, human health and ecological environment cause very big harm.The emission pollution problem of hazardous trace elements in coal-fired process
Worldwide extensive concern is caused.
External some scholars have started to conduct a preliminary study.Brander etc. utilizes the magnetic separator voluntarily developed
MagMillTM has studied the microelement in coal.But migratory behaviour of trace harmful elements during magnetic separation is by more in coal
The co- controlling of first factor, it is real that foreign scholar such as Oder has carried out preliminary magnetic separation to the hazardous trace elements in coal
It tests, also achieves certain effect；The mechanism of trace harmful elements in the primary studies such as domestic Li Sha magnetic separation removing coal.
In addition, the yield of Bed for Fine Coal increases year by year, so that particulate with the continuous improvement of mechanical coal mining degree in recent years
The desulfurization and deashing arduous task of coal.Fine grain content technique is more at present, mainly sorted including flotation, Slime dense medium cyclone,
Selective flocculation sorting, spiral separating and TBS etc., but desulfurization effect is not highly desirable.Falcon centrifugal classification is to strengthen
It is to remove a kind of effective physical separation methods of pyrite in coal sulphur, but still belong to wet split under the conditions of gravitational field.
By conventional wet coal preparation while desulfurization and deashing the content of the trace harmful elements in coal can reduce,
But there is drawbacks for these wet coal preparation methods, it brings secondary pollution.The dry type high-gradient magnetic separation of coal is as a kind of coal separation
Technology, the product after choosing need not move through dehydration and drying processing, also just reduce potential environmental pollution.Dry type magnetic separation is certain
Traditional wet coal preparation method such as the drawbacks of conventional coal preparation method is brought is avoided in degree, while avoiding gravity treatment and flotation
The drawbacks of bringing.
Summary of the invention
The purpose of the present invention is for currently lack suitable for remove trace heavy metal element coal dry separation forever
Magnetic machine provides a kind of weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way, not only can be micro heavy in coal with removing
Metallic element applies also for purification and removal of impurities of the desulfurization and deashing, nonmetallic ore of Bed for Fine Coal etc..
In order to achieve the above objectives, the present invention is implemented according to following technical scheme:
A kind of weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way, including rack, further include outside cylinder barrel shaped
Magnetic pole magnetic yoke, cylinder barrel shaped internal magnetic pole magnetic yoke, internal magnetic pole, outer magnetic pole, magnetic matrix cylinder, magnetic matrix, rotation axis, the cylinder
The bottom side of being fixed on the rack of tubular outer magnetic pole magnetic yoke, cylinder barrel shaped internal magnetic pole magnetic yoke are sleeved on outside rotation axis, and by pair
Several pairs of bolts claimed are fixedly connected with cylinder barrel shaped internal magnetic pole magnetic yoke with cylinder barrel shaped outer magnetic pole magnetic yoke, the bottom position of rotation axis
Driven below the rack and by driving device, driving device can by threephase asynchronous, two stage reducer, driving wheel, from
Driving wheel composition；Material inlet is equipped at the top of cylinder barrel shaped outer magnetic pole magnetic yoke, the bottom of cylinder barrel shaped outer magnetic pole magnetic yoke is arranged equipped with tailing
Material mouth and concentrate discharge gate are from top to bottom equipped with the ferrite that magnetic field strength gradually increases in the cylinder barrel shaped outer magnetic pole magnetic yoke
Magnetic source sorts area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source sorts area, and the internal magnetic pole is respectively perpendicular to turn
Moving axis is securely fitted in ferrite magnetic source sorting area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source sorting area
Cylinder barrel shaped internal magnetic pole magnetic yoke on, outer magnetic pole is securely fitted in ferrite magnetic source sorting area and common NdFeB magnetic source point respectively
In cylinder barrel shaped outer magnetic pole magnetic yoke in constituency and high performance Nd FeB magnetic source sorting area, outer magnetic pole and internal magnetic pole are circumferentially in equal
Even interval even-even arranges and constitutes to pole formula closed magnetic architecture that ferrite magnetic source sorts area and the sorting of common NdFeB magnetic source
Even number sorting space is respectively formed in area and high performance Nd FeB magnetic source sorting area and even number unloads material space, i.e., per external magnetic
Field regions between pole and each pair of internal magnetic pole constitute sorting space, and adjacent with sorting space is to unload material space, sort space
It is adjacently positioned with the material space that unloads of no Distribution of Magnetic Field to guarantee flexibility and continuity in a manner of sorting；According to ferrite magnetic source point
The quantity in constituency and common NdFeB magnetic source sorting area and the sorting space in high performance Nd FeB magnetic source sorting area is in magnetic matrix
Cylinder inner wall is correspondingly arranged the equal separation chamber of quantity, and the magnetic matrix cylinder inner wall filling of the separation chamber in magnetic matrix cylinder is poly-
Magnetic medium；The magnetic matrix cylinder is installed between internal magnetic pole, outer magnetic pole, and with the cylinder barrel shaped internal magnetic pole magnetic yoke outside rotation axis
It is fixedly connected.
Further, internal magnetic pole adjacent pole magnetic field is in that S, N are distributed in N, S distribution, corresponding outer magnetic pole adjacent magnetic field,
Be arranged so, can while promoting background magnetic field intensity, magnetic line of force distribution more tend to that steady, magnetic field performance is more stable.
Specifically, the composition of the internal magnetic pole and outer magnetic pole be based on permanent magnet armouring multi-panel squeeze soft iron mode obtain,
And internal magnetic pole, outer magnetic pole are constituted to pole formula closed magnetic architecture；The internal magnetic pole squeezes arc-shaped permanent magnet and interior magnetic by internal magnetic pole
Pole armouring arc-shaped permanent magnet squeezes the high magnetic conductive soft iron acquisition of arc by same polarity armouring, and internal magnetic pole armouring arc-shaped permanent magnet exists
Rear portion, internal magnetic pole squeeze arc-shaped permanent magnet respectively in arranged on left and right sides, form the internal magnetic pole of interior convex；The outer magnetic pole is by outer magnetic
Pole armouring arc-shaped permanent magnet and outer magnetic pole, which squeeze arc-shaped permanent magnet, the high magnetic conductive soft iron of arc is squeezed by same polarity armouring obtains,
Outer magnetic pole armouring arc-shaped permanent magnet squeezes rear portion, the outer magnetic pole extruding arc-shaped permanent magnet of the high magnetic conductive soft iron of arc in same polarity armouring
The arranged on left and right sides for squeezing the high magnetic conductive soft iron of arc in same polarity armouring respectively forms outer concave outer magnetic pole.Here arc is required
The dimensions of high magnetic conductive soft iron will be mutually adapted with armouring and the arc-shaped permanent magnet specification of extruding, and interior convex, outer concavity arc
The dimensions of the high magnetic conductive soft iron of shape will be also mutually adapted.
Further, the ferrite magnetic source sorting area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source
The magnetic matrix sorted on the magnetic matrix cylinder in area is more and more sparse, and specifically, ferrite magnetic source sorts area and common NdFeB
The magnetic matrix pack completeness that magnetic source sorts on the magnetic matrix cylinder in area and high performance Nd FeB magnetic source sorting area is respectively 12-
15%, 7-9%, 3-5%, ferrite magnetic source sort in area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source sorting area
Magnetic matrix cylinder on magnetic matrix be also that the sparse not equal and planform of the density that is made from a different material is different, respectively with
Same size size made of different permanent magnet magnetic source materials matches to pole formula closed magnetic architecture, can also realize and by force
Change echelon sorting, can further improve the adaptability to the variation of the physical property such as rough coal powder and the effect being classified according to physical difference,
It is especially suitable for the processing wide grade powder material different containing magnetic strength.
Compared with prior art, the invention has the following advantages that
(1) the cylindrical body echelon that different Magnets materials are formed is closed magnetic system, forms the sorting ambient field with echelon
Strong and magnetic field gradient, may make that strong, weak magnetic material successively sorts in same equipment in wide grade coal dust, obtain essence, in, tail
Three kinds of products, simplify technique.In addition, being remained stationary after the completion of inside and outside pole assemblage, permanent magnet is broken in use process
It is bad and influence small, be conducive to the service life for protecting permanent magnet.
(2) magnetic matrix in magnetic matrix cylinder is symmetrically distributed in each closure magnetic system, and magnetic matrix is greatly improved magnetic
Field gradient further increases background magnetic field intensity and strengthens the leading role of magnetic force to increase magnetic force suffered by magnetic material, improves
Separating effect；When magnetic matrix cylinder is rotated around vertical rotation axis, a separation chamber begins to rotate out the back of closed magnetic architecture
(start discharging) when scape field region, the separation chamber of tight adjacent side enters the background magnetic field area of closed magnetic architecture just
Domain (starts to sort), and even numbers several in this way sort area's reciprocation cycle, realizes sorting-discharging-sorting-discharging-sorting-
Discharging-sorting-discharging process.Continuity separation operation is not only realized, and improves working efficiency and the place of complete machine
Reason amount.The sparse not equal and structure magnetic matrix of different shapes of density made of different materials is successively mounted on poly- magnetic from top to bottom
In medium cylinder, respectively from same size size made of different permanent magnet magnetic source materials to pole formula closed magnetic architecture phase
Match, can also realize and strengthen echelon sorting, can further improve to the physical property such as rough coal powder variation adaptability and according to physical property it is poor
The effect of opposite sex classification is especially suitable for the processing wide grade powder material different containing magnetic strength.
(3) dry separation overcomes wet separation using water as many problems of medium bring, saves the complicated work of water process
Skill process not only makes sorting process more simple, but also it is easy to directly reduce operating cost, working service.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the invention.
Fig. 2 is magnetic matrix barrel structure schematic diagram of the invention.
Fig. 3 is the cross-sectional view of magnetic matrix cylinder.
Fig. 4 is relatively to dredge magnetic matrix structural schematic diagram.
Fig. 5 is closeer magnetic matrix structural schematic diagram.
Fig. 6 is closed permanent magnetic system structural schematic diagram.
Fig. 7 is internal magnetic pole and outer magnetic pole magnetizing direction schematic diagram.
Serial number in figure: 1, rack；2, tailing discharge gate；3, outer magnetic pole；4, outer magnetic pole armouring arc-shaped permanent magnet；5, outer magnetic pole
Squeeze arc-shaped permanent magnet；6, high performance Nd FeB magnetic source sorts area；7, outer magnetic pole magnetic yoke；8, internal magnetic pole；9, internal magnetic pole squeezes arc
Permanent magnet；10, internal magnetic pole armouring arc-shaped permanent magnet；11, common NdFeB magnetic source sorts area；12, rotation axis；13, magnetic matrix；
14, ferrite magnetic source sorts area；15, material inlet；16, cylindrical magnetic matrix cylinder；17, internal magnetic pole magnetic yoke；18, concentrate discharge
Mouthful.
Specific embodiment
The invention will be further described combined with specific embodiments below, in the illustrative examples and explanation of the invention
For explaining the present invention, but it is not as a limitation of the invention.
As shown in Figure 1, Figure 2, Figure 3 shows, the weak magnetic powder echelon permanent-magnet high gradient concentration equipment of a kind of continous way of the invention,
It further include cylinder barrel shaped outer magnetic pole magnetic yoke 7, cylinder barrel shaped internal magnetic pole magnetic yoke 17, internal magnetic pole 8, outer magnetic pole 3, poly- magnetic including rack
Medium cylinder 16, magnetic matrix 13, rotation axis 12, the bottom side of being fixed on the rack of the cylinder barrel shaped outer magnetic pole magnetic yoke 7, cylinder
Tubular internal magnetic pole magnetic yoke 17 is sleeved on outside rotation axis 12, and makes cylinder barrel shaped internal magnetic pole magnetic yoke 17 by symmetrical several pairs of bolts
It is fixedly connected with cylinder barrel shaped outer magnetic pole magnetic yoke 7, the bottom of rotation axis 12 is located at below rack and is driven by driving device, drives
Device can be made of threephase asynchronous, two stage reducer, driving wheel, driven wheel, for driving rotation axis 12 to rotate；Circle
Material inlet 15 is equipped at the top of tubular outer magnetic pole magnetic yoke 7, the bottom of cylinder barrel shaped outer magnetic pole magnetic yoke 7 is equipped with 2 He of tailing discharge gate
Concentrate discharge gate 18 is from top to bottom equipped with the ferrite magnetic that magnetic field strength gradually increases in the cylinder barrel shaped outer magnetic pole magnetic yoke 7
Source sorting area 14 and common NdFeB magnetic source sorting area 11 and high performance Nd FeB magnetic source sort area 6, and the internal magnetic pole 8 is respectively perpendicular
Ferrite magnetic source sorting area 14 and common NdFeB magnetic source sorting area 11 and high performance Nd FeB magnetic source are securely fitted in rotation axis
It sorts in the cylinder barrel shaped internal magnetic pole magnetic yoke 17 in area 6, outer magnetic pole 3 is securely fitted in ferrite magnetic source sorting area 14 and general respectively
In cylinder barrel shaped outer magnetic pole magnetic yoke 7 in logical NdFeB magnetic source sorting area 11 and high performance Nd FeB magnetic source sorting area 6, outer magnetic pole 3
It circumferentially arranges and constitutes to pole formula closed magnetic architecture in uniform intervals even-even with internal magnetic pole 8, ferrite magnetic source sorts area
14 and common NdFeB magnetic source sorting area 11 and high performance Nd FeB magnetic source sorting area 6 in be respectively formed even number sorting space and idol
Several to unload material space, i.e., the field regions between each pair of outer magnetic pole 3 and each pair of internal magnetic pole 8 constitute sorting space, with sorting space phase
Adjacent is to unload material space；Sorting space is adjacently positioned with the material space that unloads without Distribution of Magnetic Field to guarantee the flexibility in a manner of sorting
And continuity；Area is sorted according to ferrite magnetic source sorting area 14 and common NdFeB magnetic source sorting area 11 and high performance Nd FeB magnetic source
The quantity of separation chamber in 6 is correspondingly arranged the equal separation chamber of quantity in 16 inner wall of magnetic matrix cylinder, and in magnetic matrix cylinder 16
16 inner wall of magnetic matrix cylinder of interior separation chamber fills magnetic matrix 13；The magnetic matrix cylinder 16 is installed on internal magnetic pole 8, outer magnetic
Between pole 3, and it is fixedly connected with the cylinder barrel shaped internal magnetic pole magnetic yoke 17 outside rotation axis.
Firstly, the outer magnetic pole magnetic yoke 7 processed is mechanically fastened in four racks 1 by welding or bolt etc.
Tailing discharge gate 2 and concentrate discharge gate 18 are then passed through and the mechanical systems fixed installation such as weld or be bolted in outer magnetic by side
On the reserved position in 7 bottom of pole magnetic yoke；Then rotation axis 12 and internal magnetic pole magnetic yoke 17 are assembled, when assembly first installs rotation axis 12
Above the framework of 7 bottom preset of outer magnetic pole magnetic yoke, then 17 cylinder of internal magnetic pole magnetic yoke is sleeved on except rotation axis 12, and leads to
Crossing symmetrical several pairs of bolts is connected and fixed internal magnetic pole magnetic yoke 17 with certain framework in outer magnetic pole magnetic yoke 7, waits in next step
Assembly；The power section of rotation axis 12 can be made of threephase asynchronous, two stage reducer, driving wheel, driven wheel, actively
It takes turns end and deviation correcting device is set.
Then, using special assembly technology assembly ferrite magnetic source sorting area 14 and common NdFeB magnetic source sorting area 11 and
High performance Nd FeB magnetic source sorts the echelon magnetic source in area 6, different permanent magnet magnetic source materials will be respectively adopted and according to certain specification
Dimensioned and manufactured outer magnetic pole armouring arc-shaped permanent magnet 4, outer magnetic pole squeeze arc-shaped permanent magnet 5 and outer magnetic pole 3 are made, will be respectively
Manufactured internal magnetic pole squeezes arc-shaped permanent magnet 9 and interior using different permanent magnet magnetic source materials and according to certain specification dimensioned
Internal magnetic pole 8 is made in magnetic pole armouring arc-shaped permanent magnet 10, according to the example in Fig. 6, wherein the composition of internal magnetic pole 8 and outer magnetic pole 3 is equal
It is obtained based on permanent magnet armouring multi-panel extruding soft iron mode and internal magnetic pole 8, outer magnetic pole 3 is constituted to pole formula closed magnetic architecture；Institute
It states internal magnetic pole 8 and squeezes arc by internal magnetic pole extruding arc-shaped permanent magnet 9 and internal magnetic pole armouring arc-shaped permanent magnet 10, by same polarity armouring
The high magnetic conductive soft iron of shape obtains, internal magnetic pole armouring arc-shaped permanent magnet 10 rear portion, internal magnetic pole squeeze arc-shaped permanent magnet 9 respectively it is left,
Right two sides form the internal magnetic pole 8 of interior convex；The outer magnetic pole 3 squeezes arc by outer magnetic pole armouring arc-shaped permanent magnet 4 and outer magnetic pole
Permanent magnet 5 squeezes the high magnetic conductive soft iron acquisition of arc, outer magnetic pole armouring arc-shaped permanent magnet 4 by same polarity armouring in same polarity armour
Dress squeezes the rear portion of the high magnetic conductive soft iron of arc, outer magnetic pole squeezes arc-shaped permanent magnet 5 and leads respectively in same polarity armouring extruding arc height
The arranged on left and right sides of magnetic soft iron forms outer concave outer magnetic pole 3.Here the dimensions and armouring of the high magnetic conductive soft iron of arc are required
It to be mutually adapted with the arc-shaped permanent magnet specification of extruding, and the dimensions of interior convex, the outer high magnetic conductive soft iron of concavity arc is also wanted
It is mutually adapted；In addition, the present invention to the assembly of pole formula closed magnetic architecture is assembled to form according to polar requirement, squeezed using armouring
Press poly- magnetic technology by muti-piece different size magnetize different rectangular permanent magnetism permanent magnets by way of squeezing high magnetic conductive soft iron come
It realizes, internal magnetic pole adjacent pole magnetic field is in that S, N are distributed in N, S distribution, corresponding outer magnetic pole adjacent magnetic field, is arranged so, energy
It is enough while promoting background magnetic field intensity, magnetic line of force distribution more tend to that steady, magnetic field performance is more stable, specifically as shown in fig. 7,
In Fig. 7, the field regions between each pair of outer magnetic pole 3 and each pair of internal magnetic pole 8 are sorting space, and adjacent with separation chamber is that discharging is empty
Between.
Secondly, internal magnetic pole 8 and outer magnetic pole 3 in installation high performance Nd FeB magnetic source sorting area 6；Then common NdFeB is assembled
Magnetic source sorts the internal magnetic pole 8 and outer magnetic pole 3 in area 11；Then the interior internal magnetic pole 8 in installation level-one ferrite magnetic source sorting area 14
With outer magnetic pole 3；1/3 width of outer magnetic pole armouring arc-shaped permanent magnet 4 need to be made to put into the preset card of outer magnetic pole magnetic yoke 7 just when installation
It in slot, while adopting and being mechanically fixed, when installation pays attention to other non-using non-magnetic stainless steel bar, non-magnetic stainless steel plate etc.
Magnetic conductive substance.Each inside and outside high magnetic conductive soft iron magnetic pole of arc that squeezes passes through non-magnetic stainless steel plate and bolt reserved thereon
Hole is fixedly connected with bolt.
Shown in referring to Fig.1, finally, by the different materials being processed into advance and the magnetic matrix of specification 13 according to from different ladders
The requirement of the matching of secondary magnetic source is mounted on magnetic matrix cylinder 16, that is, more and more sparse from bottom to up, specifically, ferrite
Magnetic source sorts the poly- magnetic on the magnetic matrix cylinder in area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source sorting area
Grinding medium filling ratio is respectively 12-15%, 7-9%, 3-5%, and generally cylinder magnetic matrix, square hole-shaped magnetic matrix are under, poly- magnetic
The density of magnetic matrix 13 in medium cylinder 16 is determined and is adjusted by the density of the density in the hole of preset magnetic matrix cylinder 16
It is whole and be attached using the bolt with Double-ended nut, it is mainly easy to disassemble to adjust without using common welding manner
The density of magnetic matrix 13 in magnetic matrix cylinder, wherein in Fig. 2 and Fig. 3 provide is poly- in cylindrical magnetic matrix cylinder
Magnetic medium 13, Fig. 4 give it is a kind of relatively dredge magnetic matrix structural schematic diagram, Fig. 5 gives a kind of closeer magnetic matrix structure and shows
It is intended to；It, can be using non-magnetic stainless steel plate magnetic matrix cylinder 16 then according to the logarithm that internal magnetic pole 8 and outer magnetic pole 3 are formed
It is split into the space, that is, separation chamber equal with the logarithm of internal magnetic pole 8 and the formation of outer magnetic pole 3, non-magnetic stainless steel plate and cylinder
Shape medium cylinder 16 is fixed by welding, and convenient for later continuous-feeding sorting and discharging etc., non-magnetic stainless steel plate is same
When also play shielded segment leakage field, to increase the effect of the magnetic field strength of separation chamber；Then the magnetic matrix cylinder 16 that will be assembled,
Alignment internal magnetic pole magnetic yoke 17 and rotation axis 12, slowly fall after holding high, then carry out magnetic matrix cylinder 16 and rotation axis 12
Mechanical connection is fixed, and guarantees that magnetic matrix cylinder 16 can be rotated swimmingly under the drive of rotation axis 12；Finally, carry out
Being connected and fixed for the material inlet 15 in portion, is then debugged, and checks whether installation meets the requirements.
The weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way of the invention can meet continuous sorting requirement, specifically
Implementation process: it is made of first internal magnetic pole, outer magnetic pole between providing separation chamber to pole formula closed magnetic architecture and being circumferentially in uniform
It is arranged every even-even, i.e., sorting space and the material space that unloads of no Distribution of Magnetic Field are adjacently positioned；Secondly exist according to the quantity of separation chamber
The equal separation chamber of quantity is correspondingly arranged in cylindrical magnetic matrix cylinder, adjacent with separation chamber is to unload material space, and sorting
Room fills magnetic matrix；Furthermore magnetic matrix cylinder is installed between internal magnetic pole, outer magnetic pole, and is attached admittedly with rotation axis
It is fixed；It is sent into coal dust by material inlet 15, rotation axis is driven by motor, and coal dust will be made from the sorting space in magnetic matrix cylinder
It continuously enters, pass in and out separation chamber and unload material space, to realize that continous way sorting (is with 4 pairs of closure magnetic systems of even number in legend
Example): sorting-discharging-sorting-discharging-sorting-discharging-sorting-discharging process.In addition, in actual use process
The requirement etc. of the Mineral pairs treating capacity such as the middle size specification according to outer magnetic pole magnetic yoke diameter and sorting rough coal powder, can increase or decrease
Sort the quantity in area or a certain sorting separation chamber, area.
The limitation that technical solution of the present invention is not limited to the above specific embodiments, it is all to do according to the technique and scheme of the present invention
Technology deformation out, falls within the scope of protection of the present invention.
Claims (4)
1. a kind of weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way, including rack, which is characterized in that further include circle
Tubular outer magnetic pole magnetic yoke, cylinder barrel shaped internal magnetic pole magnetic yoke, internal magnetic pole, outer magnetic pole, magnetic matrix cylinder, magnetic matrix, rotation axis,
The bottom side of being fixed on the rack of the cylinder barrel shaped outer magnetic pole magnetic yoke, cylinder barrel shaped internal magnetic pole magnetic yoke are sleeved on outside rotation axis,
And cylinder barrel shaped internal magnetic pole magnetic yoke is fixedly connected with cylinder barrel shaped outer magnetic pole magnetic yoke by symmetrical several pairs of bolts, rotation axis
Bottom be located at below rack and driven by driving device, material inlet, cylinder barrel shaped are equipped at the top of cylinder barrel shaped outer magnetic pole magnetic yoke
The bottom of outer magnetic pole magnetic yoke is equipped with tailing discharge gate and concentrate discharge gate, from top to bottom sets in the cylinder barrel shaped outer magnetic pole magnetic yoke
The ferrite magnetic source sorting area and common NdFeB magnetic source sorting area that there is magnetic field strength to gradually increase and high performance Nd FeB magnetic source point
Constituency, the internal magnetic pole are respectively perpendicular to rotation axis and are securely fitted in ferrite magnetic source sorting area and the sorting of common NdFeB magnetic source
In cylinder barrel shaped internal magnetic pole magnetic yoke in area and high performance Nd FeB magnetic source sorting area, outer magnetic pole is securely fitted in ferrite respectively
Magnetic source sorts the cylinder barrel shaped outer magnetic pole magnetic yoke in area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source sorting area
On, outer magnetic pole and internal magnetic pole are circumferentially in uniform intervals even-even arrangement and constitute to pole formula closed magnetic architecture, ferrite magnetic
Even number sorting space is respectively formed in source sorting area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source sorting area
Material space is unloaded with even number, i.e., the field regions between each pair of outer magnetic pole and each pair of internal magnetic pole constitute sorting space, with sorting space
Adjacent is to unload material space；According to ferrite magnetic source sorting area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source
The quantity in the sorting space in sorting area is correspondingly arranged the equal separation chamber of quantity in magnetic matrix cylinder inner wall, and in magnetic matrix
The magnetic matrix cylinder inner wall of separation chamber in cylinder fills magnetic matrix；The magnetic matrix cylinder be installed on internal magnetic pole, outer magnetic pole it
Between, and be fixedly connected with the cylinder barrel shaped internal magnetic pole magnetic yoke outside rotation axis；
In use, being made of first internal magnetic pole, outer magnetic pole separation chamber is provided to pole formula closed magnetic architecture and circumferentially in uniform
It is spaced even-even arrangement, i.e. sorting space and the material space that unloads of no Distribution of Magnetic Field is adjacently positioned；Secondly according to the quantity of separation chamber
The equal separation chamber of quantity is correspondingly arranged in cylindrical magnetic matrix cylinder, adjacent with separation chamber is to unload material space, and dividing
Room is selected to fill magnetic matrix；Magnetic matrix cylinder is installed between internal magnetic pole, outer magnetic pole again, and is attached admittedly with rotation axis
It is fixed；It is sent into coal dust by material inlet, rotation axis is driven by motor, connects coal dust from the sorting space in magnetic matrix cylinder
Continuous to enter, pass in and out separation chamber and unload material space, realize continous way sorting: sorting-discharging-sorting-discharging-sort-is unloaded
Material-sorting-discharging process.
2. the weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way according to claim 1, it is characterised in that: institute
The composition for stating internal magnetic pole and outer magnetic pole, which is based on permanent magnet armouring multi-panel and squeezes soft iron mode, to be obtained and internal magnetic pole, outer magnetic pole structure
Pairs of pole formula closed magnetic architecture；The internal magnetic pole by internal magnetic pole squeeze arc-shaped permanent magnet and internal magnetic pole armouring arc-shaped permanent magnet,
It squeezes the high magnetic conductive soft iron of arc by same polarity armouring to obtain, internal magnetic pole armouring arc-shaped permanent magnet squeezes arc in rear portion, internal magnetic pole
Shape permanent magnet in arranged on left and right sides, forms the internal magnetic pole of interior convex respectively；The outer magnetic pole by outer magnetic pole armouring arc-shaped permanent magnet and
Outer magnetic pole squeezes arc-shaped permanent magnet, is obtained by the high magnetic conductive soft iron of same polarity armouring extruding arc, outer magnetic pole armouring arcuate permanent magnetic
Body squeezes arc-shaped permanent magnet in the rear portion of the same polarity armouring extruding high magnetic conductive soft iron of arc, outer magnetic pole and squeezes respectively in same polarity armouring
The arranged on left and right sides of the high magnetic conductive soft iron of arc is pressed, outer concave outer magnetic pole is formed.
3. the weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way according to claim 1, it is characterised in that: institute
It is corresponding in S, N distribution in N, S distribution, outer magnetic pole adjacent magnetic field to state internal magnetic pole adjacent pole magnetic field.
4. the weak magnetic powder echelon permanent-magnet high gradient concentration equipment of continous way according to claim 1, it is characterised in that: institute
State the magnetic matrix cylinder in ferrite magnetic source sorting area and common NdFeB magnetic source sorting area and high performance Nd FeB magnetic source sorting area
On magnetic matrix pack completeness be respectively 12-15%, 7-9%, 3-5%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2338097Y (en) * | 1998-02-25 | 1999-09-15 | 莫天云 | Disc type magnetic ore dressing machine |
| CN100464864C (en) * | 2004-10-20 | 2009-03-04 | 李泽 | Iron removal machine |
| CN201287073Y (en) * | 2008-10-23 | 2009-08-12 | 河南理工大学 | Permanent magnetic center opening type multi-roll multi-element high-gradient vibration magnetic separator |
| CN101474593B (en) * | 2009-02-02 | 2011-04-20 | 河南理工大学 | Permanent magnet high-field intensity magnetic filter |
| EP2368639A1 (en) * | 2010-03-23 | 2011-09-28 | Siemens Aktiengesellschaft | Method and device for magnetically separating a fluid |
| CN103736587B (en) * | 2013-12-17 | 2016-06-08 | 攀钢集团矿业有限公司 | Non-homogeneous strong magnetizing mediums, magnetic plant and magnetic selection method |
| CN204564321U (en) * | 2015-02-16 | 2015-08-19 | 柳州市远健磁力设备制造有限责任公司 | The continuous magnetic separator of the flat ring of permanent-magnet high gradient |
| CN204724315U (en) * | 2015-06-10 | 2015-10-28 | 岳阳大力神电磁机械有限公司 | A kind of horizontal disk high gradient magnetic separator |
| CN206483563U (en) * | 2017-01-18 | 2017-09-12 | 苏卫放 | Permanent magnetism horizontal disk high gradient magnetic separator |
-
2017
- 2017-11-02 CN CN201711063218.1A patent/CN107552226B/en not_active Expired - Fee Related
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