CN104399580B - A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material - Google Patents
A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material Download PDFInfo
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- CN104399580B CN104399580B CN201410587307.6A CN201410587307A CN104399580B CN 104399580 B CN104399580 B CN 104399580B CN 201410587307 A CN201410587307 A CN 201410587307A CN 104399580 B CN104399580 B CN 104399580B
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Abstract
The present invention relates to a kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material.A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material, it is characterised in that it includes frame, sorting under casing, concentrate hopper, unloads ore deposit sensing roller, sorting rotary drum, central hollow bearing, actuating device, excitation wire bag, iron core；Sorting under casing is adjusted device and is fixed in frame, and sorting under casing is positioned at the lower section of sorting rotary drum；Being provided with multiple iron core and multiple excitation wire bag in the cavity of sorting rotary drum, be provided with circulating cooling guide hole in each iron core, circulating cooling guide hole is sequentially connected in series by conduit and communicates, and connects with outside cooling aqueous phase through central hollow bearing；One end of sorting rotary drum is connected with frequency conversion speed-down driving means by actuating device；The end of multi-pole coils group connects with the control set for adjusting sorted outside rotary drum；Unload the ore deposit sensing rubbed outer rim plastic contact taking turns and sorting rotary drum of roller.It is high that this magnetic separator has sorting magnetic field intensity, sorting magnetic field and sorting rotary drum rotating speed continuously adjustabe, operates safe and reliable, adapts to the Comprehensive Characteristics continuously run, it is adaptable to the sorting of the materials such as particulate strongly magnetic material and similar artificial magnet ore deposit.
Description
Technical field
The present invention relates to a kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material.
Background technology
The magnetic characteristic of material is used during mineral processing with feed separation, magnetic mineral therein is reclaimed with magnetic separator sorting, the at present sorting of strongly magnetic material is mainly carried out with weak magnetic separator, in laboratory magnetic separator because of magnetic field intensity relatively low, magnetic field intensity generally only has 150 mT～250 mT.
Along with the granularity of material to be selected attenuates, and the magnetic of some material to be selected is relatively low, i.e. specific susceptibility is relatively low, such as: some artificial magnetic material.In current laboratory, weak magnetic separator is because magnetic field intensity is relatively low and some structure problem, it is impossible to effectively sort current particulate strongly magnetic material sorting；Sometimes because of magnetic separator duration of runs longer time, cause line bag overheated, cause the further reduction of magnetic field intensity, and lose stability, have a strong impact on assorting room；Meanwhile, part magnetic separator is not because having ore discharging apparatus, or because ore discharging apparatus exists potential safety hazard, easily operator caused safety hazard, affects experimentation.
The present invention has used for reference the feature of original laboratory weak magnetic separator equipment, uses the iron core being provided with circulating cooling guide hole to close with magnet exciting coil package, can strengthen exciting current and improve magnetic field intensity；The recirculated cooling water imported is utilized to improve the stability of composite poles, and by the sorting under casing of design and being effectively matched of sorting rotary drum, thus reduce the granularity of strongly magnetic material sorting.Employing is unloaded ore deposit and is sensed roller and frictional drive, makes equipment operate safe and reliable, is conducive to ensureing the safety of operator, and the sorting for particulate strongly magnetic material provides a kind of applicable and reliable Novel experimental equipment.
Summary of the invention
It is an object of the invention to provide a kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material, this magnetic separator, for the sorting of particulate strongly magnetic material, has magnetic field and rotary drum continuously adjustabe, operates feature safe and reliable, that continuously run.
To achieve these goals, the technical scheme is that a kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material, it is characterised in that it includes frame 1, sorting under casing 2, concentrate hopper 3, unloads ore deposit sensing roller 4, sorting rotary drum 5, central hollow bearing 6, actuating device 7, excitation wire bag 8, iron core 9；
The upper end of sorting under casing 2 is provided with to ore deposit fixing hole 17, sorting under casing 2 is adjusted device and is fixed in frame 1, it is cavity in sorting under casing 2, bottom in sorting under casing 2 is arc, the lower end side of sorting under casing 2 is provided with nonmagnetics discharging opening 22, being provided with control valve at discharging opening 22, the homonymy of sorting under casing 2 lower end side discharging opening is provided with overfall 11；Sorting under casing 2 is positioned at the lower section of sorting rotary drum 5；
Sorting rotary drum 5 is cylindric；It is provided with multiple iron core 9 and multiple excitation wire bag 8 in the cavity of sorting rotary drum 5, iron core 9 is provided with circulating cooling guide hole 10, circulating cooling guide hole in iron cores at different levels is sequentially connected in series to communicate by conduit 15 and constitutes cyclic water channel, the import of cyclic water channel connects with outside cooling aqueous phase through central hollow bearing 6 through the water inlet end of first connection conduit 16, and the outlet of cyclic water channel is connected with concentrate wash tub pipe through central hollow bearing 6 by the water side of second connection conduit；The both ends of sorting rotary drum 5 are connected with frame 1 (central hollow bearing 6 is through sorting rotary drum 5) by central hollow bearing 6 respectively, and one end of sorting rotary drum 5 is connected with frequency conversion speed-down driving means 20 by actuating device 7；Iron core 9 is fixing with central hollow bearing 6 to be connected, the middle and lower part of iron core 9 is wound excitation wire bag 8 by coil, multiple excitation wire bags 8 join end to end and constitute multi-pole coils group, and the end of multi-pole coils group control set for adjusting 18 outside central hollow bearing 6 is with sorting rotary drum 5 connects；
Unloading the ore deposit rubbed outer rim plastic contact taking turns 13 and sorting rotary drum 5 of sensing roller 4, the two ends unloading ore deposit sensing roller 4 are connected with frame 1 by bearing respectively, and the inside unloading ore deposit sensing roller 4 is provided with permeability magnetic material；Being provided with in concentrate hopper 3 and unload ore deposit sensing roller 4, the front bottom end of concentrate hopper 3 is provided with Magnetic Materials discharging opening 12；There is concentrate flushing water outlet 14 sorting rotary drum 5 and the top unloaded between ore deposit sensing roller 4.
Described frame is provided with the wheel for walking.
A diameter of 300 mm～2000 mm of described sorting rotary drum 5.
The progression of described multi-pole coils group is 3～6 grades, and its magnetic field intensity is adjusted the electric current of control device 18 and connects adjustable, and magnetic field intensity is up to 350 mT～450 mT.
Described multi-pole coils group axially arranges, and disk pack angle is 90 °～180 °.
The circulating cooling guide hole 10 of described iron core 9, is distributed in grill-shaped, and axial grid is 1～5.
Described circulating cooling guide hole 10 connects through connecting conduit 16, and such as welding, conduits at different levels join end to end, and head and end connects through central hollow bearing 6 with outside cooling aqueous phase.
The outer rim of described sorting rotary drum 5 and sorting under casing 2 are in partial concentric circles, and sort the outer rim of rotary drum 5 and the gap of sorting under casing 2, are adjusted device continuously adjustabe, and the outer rim sorting rotary drum 5 is 3 mm～60 mm with the spacing sorting under casing 2.
Described unloads the ore deposit rubbed outer rim plastic contact taking turns 13 and sorting rotary drum 5 of sensing roller 4, and friction pulley 13 senses roller 4 plastic joining with unloading ore deposit.
The invention has the beneficial effects as follows:
1, the laboratory magnetic separator of the present invention utilizes iron core and the multistage magnetic pole set of excitation wire bag composition of circulating cooling guide hole, it is possible to obtain higher magnetic field intensity, magnetic field intensity is up to 350 mT～450 mT, it is adaptable to fine grain particle sorts.
2, being provided with circulating cooling guide hole in the iron core of the laboratory magnetic separator of the present invention, logical supercooled water forces cooling excitation wire bag, and the magnetic field intensity making sorting is stable, it is adaptable to continuously run for a long time.
3, the laboratory magnetic separator of the present invention utilizes and unloads ore deposit sensing roller, and by friction pulley and sorting rotary drum plastic contact, without potential safety hazard, it is achieved safe operation process.
4, the laboratory magnetic separator of the present invention utilizes sorting rotary drum to arrange with the partial concentric circles of sorting under casing, and sort the spacing continuously adjustabe of rotary drum and sorting under casing, make the magnetic-particle in material fully adsorb, it is achieved separating effect is notable, be suitable for sorting particle size range extensive.
5, the laboratory magnetic separator of the present invention sorting under casing lower end nonmagnetics discharge outlet in side, and with overfall homonymy, it is simple to collect nonmagnetic product from failing, make result of the test accurately and reliably.
6, test shows: when the concentration for the treatment of material is at 10 wt%～35 wt%, when raw meal particle size-0.045 mm accounts for 55%～95%, and after the laboratory magnetic separator of the present invention sorts, the nonmagnetics in mine tailing can reduce by 5%～25%.Laboratory magnetic separator long time running, the temperature rise amplitude of excitation wire bag is less than 3 DEG C.When raw meal particle size-0.030 mm accounts for more than 95%, still can effectively sort, and separating effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 a is the iron core sectional view with circulating cooling guide hole of the present invention.
Fig. 2 b is the right view of Fig. 2 a.
Fig. 3 a is the schematic diagram unloading ore deposit sensing roller and friction pulley of the present invention.
Fig. 3 b is the right view of Fig. 3 a.
Fig. 4 a is the schematic diagram of the sorting under casing of the present invention.
Fig. 4 b is the right view of Fig. 4 a.
In figure: 1-frame, 2-sorts under casing, 3-concentrate hopper, 4-unloads ore deposit sensing roller, 5-sorts rotary drum, 6-central hollow bearing, 7-actuating device, 8-excitation wire bag, 9-ferrum core, 10-circulating cooling guide hole, 11-overfall, 12-Magnetic Materials goes out mine mouth, 13-friction pulley, 14-concentrate flushing water exports, 15-conduit (being the connection conduit between the core interior with circulating cooling guide hole), first connection conduit of 16-(for iron core and the conduit of external connection of circulating cooling guide hole), 17-is to ore deposit fixing hole, 18-control set for adjusting, 19-living hinge, 20-frequency conversion speed-down driving means, 21-locking pulley, 22-nonmagnetics goes out mine mouth.
Detailed description of the invention
As shown in Figure 1, Figure 2 shown in (a, b), Fig. 3 (a, b) and Fig. 4 (a, b), a kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material, it includes frame 1, sorting under casing 2, concentrate hopper 3, unloads ore deposit sensing roller 4, sorting rotary drum 5, central hollow bearing 6, actuating device 7, excitation wire bag 8, iron core 9, control set for adjusting 18 and frequency conversion speed-down driving means 20；
The upper end of sorting under casing 2 is provided with to ore deposit fixing hole 17, sorting under casing 2 be adjusted device be fixed in frame 1 (frame be provided with for walking wheel, wheel can be locking pulley 21), it is cavity in sorting under casing 2, bottom in sorting under casing 2 is arc (or claiming part cylindrical), the lower end side of sorting under casing 2 is provided with nonmagnetics discharging opening 22, being provided with at discharging opening 22 and control valve (controlling valve to threaded with the end employing of discharging opening 22), the homonymy of sorting under casing 2 lower end side discharging opening is provided with overfall 11；Sorting under casing 2 is positioned at the lower section (sorting under casing is the most adjustable with the gap of sorting rotary drum, adjusting means regulate) of sorting rotary drum 5；
Sorting rotary drum 5 is cylindric (a diameter of 300 mm～2000 mm of described sorting rotary drum 5)；nullThe adjustable magnetic pole being provided with multiple (multistage) iron core 9 and multiple many iron cores of excitation wire bag 8(9 and excitation wire bag 8 composition in the cavity of sorting rotary drum 5 is positioned at sorting rotary drum 5 inside and continuously adjustabe)，Iron core 9 is provided with circulating cooling guide hole 10，Circulating cooling guide hole in iron cores at different levels is sequentially connected in series by conduit 15 to communicate and constitutes cyclic water channel (pipelines at different levels join end to end，Head and end connects through central hollow bearing 6 with outside cooling aqueous phase)，The import of cyclic water channel connects with outside cooling aqueous phase through central hollow bearing 6 through the water inlet end of first connection conduit 16，The outlet of cyclic water channel is connected with concentrate wash tub pipe through central hollow bearing 6 by the water side of second connection conduit (i.e. " connection conduit " have 2), and (water outlet of recirculated cooling water can be connected with the water inlet of concentrate flushing water，With energy-saving and water-saving)；The both ends of sorting rotary drum 5 are connected with frame 1 (the angle with regulating winding group by central hollow bearing 6 respectively；Sorting rotary drum 5 is rotatable, actuating device 7 be rotated), one end of sorting rotary drum 5 is connected with frequency conversion speed-down driving means 20 by actuating device 7；Iron core 9 is fixing with central hollow bearing 6 is connected (central hollow bearing 6 is through sorting rotary drum 5), the middle and lower part (outside) of iron core 9 is wound excitation wire bag 8 by coil, multiple excitation wire bags 8 join end to end and constitute multi-pole coils group, and the end of multi-pole coils group control set for adjusting 18 outside central hollow bearing 6 is with sorting rotary drum 5 connects；
(friction pulley 13 senses roller 4 plastic joining with unloading ore deposit to unload the rubbed outer rim plastic contact taking turns (elastic-friction wheel) 13 and sort rotary drum 5 of ore deposit sensing roller 4, unload ore deposit sensing roller and take turns, through elastic-friction, the driving that is connected with sorting rotary drum, 2 friction pulleys 13 are respectively sleeved at the both ends unloading ore deposit sensing roller 4), the two ends unloading ore deposit sensing roller 4 are connected with frame 1 (unloading ore deposit sensing roller 4 can rotate) by bearing respectively, and the inside unloading ore deposit sensing roller 4 is provided with permeability magnetic material；Being provided with in concentrate hopper 3 and unload ore deposit sensing roller 4, the front bottom end (seeing Fig. 1, mean the lower right of concentrate hopper) of concentrate hopper 3 is provided with Magnetic Materials discharging opening 12；Sorting rotary drum 5 and the top unloaded between ore deposit sensing roller 4 have the outlet of the concentrate flushing water outlet i.e. concentrate wash tub pipe of 14(at sorting rotary drum 5 and to unload above between ore deposit sensing roller 4).
Described adjusting means is to sort under casing 2 and the connection of frame 1 and regulation, it is bolted to connection, and [frame 1 vertically sets up-down adjustment slotted eye with the gap sorting rotary drum 5 to regulate under casing 2 with the double nut of bolt, bolt with double nut is connected through up-down adjustment slotted eye with sorting under casing 2, pine nut moves the height of bolt adjustable sorting under casing, the position of regulation double nut, the gap between scalable sorting under casing 2 and frame 1].Adjusting means also can use other adjustable up and down, device of right position.
Described actuating device is gear, living hinge (tooth bar) drive mechanism, and being that a relatively canine tooth wheel disc is fixing with sorting rotary drum 5 in one end of sorting rotary drum 5 is connected, such as multiple spot clamping or welding；It it is a less toothed disc in one end of frequency conversion speed-down driving means 20；Two toothed discs connect transmission by living hinge (tooth bar) 19.
Described frequency conversion speed-down driving means 20 is that variable frequency adjustment device forms with variable frequency drive motors, can connect regulation motor speed within the specific limits, reaches the target of regulation sorting rotary drum rotating speed.
Described control set for adjusting 18 is that frequency-variable controller, exciting current controller (for regulating the electric current in magnetic separator magnetic field), fairing, digital display meter, adjusting knob etc. are constituted；The rotating speed of sorting rotary drum 5 controls its rotating speed speed by frequency-variable controller regulation, and the electric current that the magnitude of field intensity of magnetic separator is controlled excitation wire bag 8 by exciting current controller realizes.
Described iron core be positioned at sorting rotary drum 5 (90 °～180 ° of circumference, i.e. " described multi-pole coils group axially arranges, and disk pack angle is 90 °～180 ° in middle and lower part.).
Iron core 9 is located at the inside of sorting rotary drum 5, sees Fig. 2 b, slightly gap between the two ends of iron core 9 and sorting rotary drum 5, therefore length is shorter than the length of sorting rotary drum little by little, and central hollow bearing 6, it is the bearing of a connection, simply two ends are connected with frame 1 by rolling bearing.
The progression of described multi-pole coils group is 3～6 grades, and its magnetic field intensity is adjusted the electric current of control device 18 and connects adjustable, and magnetic field intensity is up to 350 mT～450 mT.
Described multi-pole coils group axially arranges, and disk pack angle is 90 °～180 °.
The circulating cooling guide hole 10 of described iron core 9, is distributed in grill-shaped, and axial grid is 1～5.
The outer rim of described sorting rotary drum 5 and sorting under casing 2 are in partial concentric circles, and sort the outer rim of rotary drum 5 and the gap of sorting under casing 2, and through being fixed on frame 1 adjusting means continuously adjustabe, the outer rim sorting rotary drum 5 is 3 mm～60 mm with the spacing sorting under casing 2.
Test shows: when the concentration for the treatment of material is at 10 wt%～35 wt%, when raw meal particle size-0.045 mm accounts for 55%～95%, and after the laboratory magnetic separator of the present invention sorts, the nonmagnetics in mine tailing can reduce by 5%～25%.Laboratory magnetic separator long time running, the temperature rise amplitude of excitation wire bag is less than 3 DEG C.When raw meal particle size-0.030 mm accounts for more than 95%, still can effectively sort, and separating effect is good.
Work process:
1, basis treats the granule size of sorting material, or the magnetic of material is strong and weak, or desired concentrate grade height, determines sorting rotary drum 5 and sorts the spacing of under casing 2, regulation sorting rotary drum and the spacing sorting under casing；
2, the valve of non-magnetic material discharging opening 22 is threaded to the position that opening is less；
3, sorting under casing 2 will inject a certain amount of water, make the water level in sorting under casing 2 to overfall, overfall can discharge a small amount of water and be as the criterion；
4, start the corresponding button in control set for adjusting, make sorting rotary drum 5 operate, by regulating the rotating speed of frequency conversion speed-down driving means, to control the rotating speed of sorting rotary drum 5；
5, opening the valve of concentrate flushing water, now the recirculated cooling water in iron core starts the most immediately；
6, basis treats the granule size of sorting material, or the magnetic of material is strong and weak, or desired concentrate grade height, determines different sorting magnetic field intensities；Start the corresponding button in control set for adjusting (noting: before opening this button, need to confirm that current adjusting knob is in minimum or less position, in order to avoid burning out coil when starting), the current value of the required magnetic field intensity of regulation；
7, (slip of material to be selected is additionally connect the outlet of agitator) from mineral-feeding pipe to feed, mineral-feeding pipe can be inserted into fixing in ore deposit fixing hole 17, the granule of slip is because of the difference of magnetic force, magnetic-particle material will be adsorbed in the surface of sorting rotary drum 5, gyration along with sorting rotary drum 5, band is to this one end unloading ore deposit sensing roller 4, it is drawn onto on sensing roller through unloading the ore deposit sensing sensing of roller 4, the operating sensing roller again through unloading ore deposit loses magnetic force attraction, discharge after falling concentrate hopper 3 through the flushing of concentrate flushing water, be collected as magnetic material.
8, the non-magnetic particle in material enters into sorting under casing 2 lower end through slip flowing, discharge through nonmagnetics discharging opening 22, if slip fluctuates, can discharge through the overfall 11 of nonmagnetics discharging opening 22 homonymy, both are all collected as non-magnetic material by slip.
Operation principle:
1, the sorting of magnetic material be unable to do without magnetic plant.The magnetic field intensity of conventional laboratory magnetic plant only has 150 mT～250 mT, and during long time running, magnetic field intensity also decreases with the temperature rising of excitation wire bag.This device utilizes the circulating cooling guide hole in iron core, connect with outside cooling aqueous phase through central hollow bearing through connecting conduit, such that it is able to keep the temperature of iron core not raise, ensureing that iron core and excitation wire raw magnetic field intensity of contracting for fixed output quotas is stable, meanwhile, wire that can be thicker is wound around coil, and bigger exciting current is provided, reach to improve the purpose of magnetic field intensity, the beneficially sorting of particulate magnetic material, be also beneficial to the sorting of the relatively low artificial magnetic material of specific susceptibility.
2, forming multi-pole coils group according to iron core and the combination of excitation wire bag, multi-pole coils group axially arranges, and can form the fluctuation of different magnetic field intensity, and magnetic material is formed strong rolling, and advantageously reducing magnetic is mingled with, and improves the efficiency of separation of magnetic material；
3, unload the ore deposit sensing rubbed outer rim plastic contact taking turns and sorting rotary drum of roller, thus only need to drive sorting rotary drum, while reducing actuating device, it is often more important that improve the safety of operation, eliminate potential safety hazard；
4, the outer rim of sorting rotary drum is partial concentric circles with sorting under casing, and the outer rim of sorting rotary drum is adjustable with the Connexin of sorting under casing, and varigrained material can be conducive to sort；
5, the nonmagnetics discharge outlet of sorting under casing lower end is in side, and with the collection of overfall homonymy, beneficially non-magnetic material.
Claims (7)
1. the laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material, it is characterised in that it includes frame (1), sorting under casing (2), concentrate hopper (3), unloads ore deposit sensing roller (4), sorting rotary drum (5), central hollow bearing (6), actuating device (7), excitation wire bag (8), iron core (9)；
The upper end of sorting under casing (2) is provided with to ore deposit fixing hole (17), sorting under casing (2) is adjusted device and is fixed in frame (1), it is cavity in sorting under casing (2), bottom in sorting under casing (2) is arc, the lower end side of sorting under casing (2) is provided with nonmagnetics discharging opening (22), nonmagnetics discharging opening (22) place is provided with control valve, and the homonymy of sorting under casing (2) lower end side nonmagnetics discharging opening is provided with overfall (11)；Sorting under casing (2) is positioned at the lower section of sorting rotary drum (5)；
Sorting rotary drum (5) is cylindric；It is provided with multiple iron core (9) and multiple excitation wire bag (8) in the cavity of sorting rotary drum (5), iron core (9) is provided with circulating cooling guide hole (10), circulating cooling guide hole in iron cores at different levels is sequentially connected in series to communicate by conduit (15) and constitutes cyclic water channel, the import of cyclic water channel connects with outside cooling aqueous phase through central hollow bearing (6) through the water inlet end of first connection conduit (16), and the outlet of cyclic water channel is connected with concentrate wash tub pipe through central hollow bearing (6) by the water side of second connection conduit；The both ends of sorting rotary drum (5) are connected with frame (1) by central hollow bearing (6) respectively, and one end of sorting rotary drum (5) is connected with frequency conversion speed-down driving means (20) by actuating device (7)；Iron core (9) is fixing with central hollow bearing (6) to be connected, the middle and lower part of iron core (9) is wound excitation wire bag (8) by coil, multiple excitation wire bags (8) join end to end and constitute multi-pole coils group, and the end of multi-pole coils group connects with sorting rotary drum (5) control set for adjusting (18) outward through central hollow bearing (6)；
Unloading the rubbed outer rim plastic contact taking turns (13) and sorting rotary drum (5) in ore deposit sensing roller (4), the two ends unloading ore deposit sensing roller (4) are connected with frame (1) by bearing respectively, and the inside unloading ore deposit sensing roller (4) is provided with permeability magnetic material；Being provided with in concentrate hopper (3) and unload ore deposit sensing roller (4), the front bottom end of concentrate hopper (3) is provided with Magnetic Materials discharging opening (12)；Sorting rotary drum (5) and the top unloaded between ore deposit sensing roller (4) have concentrate flushing water to export (14).
A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material the most according to claim 1, it is characterised in that: described frame is provided with the wheel for walking.
A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material the most according to claim 1, it is characterised in that: a diameter of 300 mm～2000 mm of described sorting rotary drum (5).
A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material the most according to claim 1, it is characterized in that: the progression of described multi-pole coils group is 3～6 grades, its magnetic field intensity is adjusted the electric current of control device (18) and connects adjustable, and magnetic field intensity is up to 350 mT～450 mT.
A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material the most according to claim 1, it is characterised in that: described multi-pole coils group axially arranges, and disk pack angle is 90 °～180 °.
A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material the most according to claim 1, it is characterised in that: the circulating cooling guide hole (10) of described iron core (9), it is distributed in grill-shaped, axial grid is 1～5.
A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material the most according to claim 1, it is characterized in that: the outer rim of described sorting rotary drum (5) and sorting under casing (2) are in partial concentric circles, and sort the outer rim of rotary drum (5) and the gap of sorting under casing (2), being adjusted device continuously adjustabe, the outer rim of sorting rotary drum (5) is 3 mm～60 mm with the spacing of sorting under casing (2).
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