CN205361641U - It throws tail and thickness three hierarchical product magnet separators to have preliminary election concurrently - Google Patents

It throws tail and thickness three hierarchical product magnet separators to have preliminary election concurrently Download PDF

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Publication number
CN205361641U
CN205361641U CN201620077698.1U CN201620077698U CN205361641U CN 205361641 U CN205361641 U CN 205361641U CN 201620077698 U CN201620077698 U CN 201620077698U CN 205361641 U CN205361641 U CN 205361641U
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magnetic
intensity
sorting cylinder
urceolus
sorting
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郭小飞
赵通林
陈中航
李鹏程
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University of Science and Technology Liaoning USTL
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University of Science and Technology Liaoning USTL
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Abstract

The utility model relates to an it throws tail and thickness three hierarchical product magnet separators to have preliminary election concurrently, including unloading scraper blade, dispersion water pipe, guide plate, chats groove, concentrate hopper, tail -box, magnetism system includes high -intensity magnetic field magnetism system, low -intensity magnetic field magnetism system, the magnetic iron ore selects one section ball mill ore discharge, and in income sorting drum, the formation between sorting drum and guide plate of low -intensity magnetic field magnetism system and high -intensity magnetic field magnetism system has different magnetic field intensity and magnetic field gradient's sorting space, magnetic iron ore monomer granule in the sorting material is adsorbed by low -intensity magnetic field magnetism earlier, falls into the concentrate hopper, becomes the higher particulate magnetic iron ore concentrate of grade, rich intergrowth flows along with the ore pulp, falls the chats groove, becomes the chats, nonmagnetic arteries and veins quarry thing can't be adsorbed by magnetic field, becomes the tailing. The advantage is: can throw the arteries and veins quarry thing except that monomer dissociation in advance, can separate magnetic iron ore and intergrowth again, the magnetic iron ore that obtains directly gets into follow -up mill and is elected to be the industry, and the intergrowth chats that obtains returns one section ball -milling and constitutes closed circulation.

Description

A kind of three products magnetic separator having tailings discarding by preconcentration and thickness grading concurrently
Technical field
This utility model belongs to the magnetic separation technology field of magnetic iron ore type duplex wet, particularly relates to a kind of three products magnetic separator having tailings discarding by preconcentration and thickness grading concurrently.
Background technology
Owing to the magnetic iron ore Iron grade of China is low, impurity content is high, it is necessary to separate with magnetic separation through multistage grinding and could obtain qualified iron ore concentrate.Traditional magnetic iron ore ore-dressing technique mainly includes, the magnetic iron ore being crushed to less than 12mm is fed one section of ball mill, ball milling ore discharge directly feeds spiral classifier or hydroclone classification,-0.074mm content accounts for the Grading Overflow entrance permanent-magnet drum type magnetic separator of 30%~50% and roughly selects throwing tail, and granularity underproof classification sand return returns ball mill and constitutes closed circuit;The mine tailing of permanent-magnet drum type magnetic separator is thrown directly as true tailings and is removed, and its rougher concentration again passes by regrinding and reconcentration after high frequency fine screen or hydroclone classification, final obtains qualified iron extract mine producation.
In one section of not classified ball milling ore discharge, the magnetic iron ore of more than 30% has occurred that monomer dissociation, but all of ball milling ore discharge is all carried out classification by current ore-dressing technique, wherein also contains the monomer stone-like pulse of 10%~30%, this adds the idle work that graded operation consumes to a certain extent, adds production cost.
Permanent-magnet drum type magnetic separator is that current magnetite separation factory applies most common magnetite wet type roughing separation equipment, has that treating capacity is big, magnetic field intensity is high and the feature such as simple in construction, roughly selects in throwing tail at magnetic iron ore and played important function.But due to the limitation of this screening installation principle, it is difficult to obtain in the improvement of magnetite beneficiation process break through.
Application number: 200910044230.7 disclose a kind of magnetic separating method and magnetic separator, it is directly used in the coarse grain preliminary election of one section of ball mill ore discharging in vanadium titano-magnetite ore dressing, feed particle size is-5mm, pre-concentrate selection enters graded operation, preliminary rejection directly throws tail, low-grade vanadium titano-magnetite ore dressing has certain practical significance, but this equipment increases weight magnetic between ball-grinding machine and classifying equipoment and draws ore separators, adds somewhat to the complexity of production technology.
Research shows, the ore properties of one section of ball milling ore discharge and process characteristic in sorting for magnetic iron ore, research can throw the gangue mineral that demonomerization dissociates in advance, the efficient magnetic plant magnetic product meeting granularity requirements being previously isolated from again, the Simplified flowsheet of magnetite separation is highly beneficial with energy-saving and cost-reducing.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of three products magnetic separator having tailings discarding by preconcentration and thickness grading concurrently, adopt segmentation Magnetic Field Design, give full play to the effect in the magnetic iron ore of monomer dissociation, rich intergrowth separate of magnetic field force and gravity with gangue mineral, simplify the technological process of magnetite separation, and increase the effective processing capacity of one section of ball mill.
For achieving the above object, this utility model is achieved through the following technical solutions:
A kind of three products magnetic separator having tailings discarding by preconcentration and thickness grading concurrently, including frame, charging gear, actuating device, urceolus, magnetic system, sorting cylinder, wash tub pipe, also includes unloading ore deposit scraper plate, dispersion water pipe, deflector, chats groove, concentrate hopper, tail-box;Described magnetic system includes high-intensity magnetic field magnetic system, low-intensity magnetic field magnetic system;
Frame head end is provided with charging gear;The angle of urceolus and horizontal direction is 5 °, and urceolus is fixed in frame;
Sorting cylinder is co-axially located at outer barrel, arranges low-intensity magnetic field magnetic system, high-intensity magnetic field magnetic system between sorting cylinder and urceolus;
Described low-intensity magnetic field magnetic system is arranged on urceolus head, and magnetic field intensity is 800~1600Gs, is made up of ferrite permanent-magnet materials, is fixed on outer tube inner wall by permeability magnetic material;
Described high-intensity magnetic field magnetic system is arranged on urceolus afterbody, and magnetic field intensity is 2000~4500Gs, is made up of Ferrite Material and NdFeB material, is fixed on outer tube inner wall by permeability magnetic material;
Deflector is arcuate structure, is arranged on the lower section in sorting cylinder;
Unload ore deposit scraper plate and be arranged at, with wash tub pipe, the top sorting cylinder interior;
Dispersion water pipe is arranged at the centre of sorting cylinder interior near magnetic system side;
Concentrate hopper is arranged at sorting cylinder head end, unloads the lower section of ore deposit scraper plate and wash tub pipe, and end extension is fixed on frame head;
Chats groove is arranged at sorting cylinder tail end, unloads the underface of ore deposit scraper plate and wash tub pipe, and end extension is fixed on frame aft;
Tail-box is arranged at the bottom of sorting cylinder tail end.
The cornerite of described low-intensity magnetic field magnetic system's magnetic and high-intensity magnetic field magnetic system is 270 °.
The cornerite of described deflector is 180 °, and deflector is adjustable with sorting cylinder spacing.
Compared with prior art, the beneficial effects of the utility model are:
One section of ball milling ore discharge in sorting for magnetic iron ore, can be thrown in advance except the gangue mineral of 15%~30% monomer dissociation by this utility model, intergrowth thicker to magnetic iron ore thinner for 25%~30% granularity and 40%~60% Relative Size can be separated again, the thinner magnetic iron ore of the granularity that obtains can be directly entered follow-up mill and be elected to be industry, and the coarse grain intergrowth chats obtained then returns one section of ball milling and constitutes closed cycle.The mine tailing obtained by this utility model is thicker due to Relative Size, it is possible to directly stores up after dewatering, reduces the burden of Tailings Dam, extends its length of service.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is magnetic architecture schematic diagram.
Fig. 3 is separating structure schematic diagram.
In figure: 1-frame 2-charging gear 3-actuating device 4-concentrate hopper 5-urceolus 6-low-intensity magnetic field magnetic system 7-high-intensity magnetic field magnetic system 8-sorts cylinder 9-and unloads ore deposit scraper plate and wash tub pipe 10-chats groove 11-dispersion water pipe 12-deflector 13-tail-box 14-permeability magnetic material 15-ferrite 16-neodymium iron boron.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in detail, it should be noted that enforcement of the present utility model is not limited to following embodiment.
See Fig. 1-Fig. 3, have the three products magnetic separator of tailings discarding by preconcentration and thickness grading concurrently, including frame 1, charging gear 2, actuating device 3, urceolus 5, magnetic system, sorting cylinder 8, wash tub pipe, unload ore deposit scraper plate, dispersion water pipe 11, deflector 12, chats groove 10, concentrate hopper 4, tail-box 13;Described magnetic system includes high-intensity magnetic field magnetic system 7, low-intensity magnetic field magnetic system 6;
Frame 1 head end is provided with charging gear 2;The angle of urceolus 5 and horizontal direction is 5 °, can slow down flow rate of pulp to extend the sorting time when keeping pulp gravity flow, it is ensured that separating effect, and the head of urceolus 5 is high, and afterbody is low;Urceolus 5 is fixed in frame 1;It is internal that sorting cylinder 8 is co-axially located at urceolus 5, and the material of sorting cylinder 8 is magnetic stainless steel, arranges low-intensity magnetic field magnetic system 6, high-intensity magnetic field magnetic system 7 between sorting cylinder 8 and urceolus 5;Low-intensity magnetic field magnetic system 6 is arranged on urceolus 5 head, and magnetic field intensity is 800~1600Gs, 270 ° of disk pack angle, magnetic pole set width 160mm, and high 90mm is made up of ferrite permanent-magnet materials 15, is fixed on urceolus 5 by permeability magnetic material 14 internal;High-intensity magnetic field magnetic system 7 is arranged on urceolus 5 afterbody, and magnetic field intensity is 2000~4500Gs, 270 ° of disk pack angle, magnetic pole set width 180mm, and high 120mm is made up of Ferrite Material 15 and NdFeB material 16, is fixed on urceolus 5 by permeability magnetic material 14 internal.
Deflector 12 is arcuate structure, is arranged on the lower section in sorting cylinder 8;The cornerite of deflector 12 is 180 ° (relative to sorting cylinders 8), sees Fig. 3, and deflector 12 is adjustable with sorting cylinder 8 spacing.Deflector 12 two ends are provided with the support axle of leading screw, are fixed on the support axle of frame 1 in order to fixing deflector 12, and leading screw regulates the lifting position of deflector, and then adjusts the distance of deflector 12 and sorting cylinder 8.
Unload ore deposit scraper plate and be arranged at sorting top within cylinder 8 with wash tub pipe 9;Dispersion water pipe 11 is arranged at sorting centre within cylinder 8 near magnetic system side;Concentrate hopper 4 is arranged at sorting cylinder 8 head end, unloads the lower section of ore deposit scraper plate and wash tub pipe 9, and end extension is fixed on frame 1 head;Chats groove 10 is arranged at sorting cylinder 8 tail end, unloads the underface of ore deposit scraper plate and wash tub pipe 9, and end extension is fixed on frame 1 afterbody;Concentrate hopper 4 is separately positioned on head and the afterbody of frame 1 upper end with chats groove 10 outlet, in order to distinguish concentrate and chats, provides convenient for subsequent job;Tail-box 13 is arranged at the bottom of sorting cylinder 8 tail end.
Have the magnetic selection method of tailings discarding by preconcentration and thickness grading concurrently, comprise the following steps:
1) one section of ball mill ore discharging less than 5mm~8mm in magnetite separation, feed in the sorting cylinder 8 that rotating speed is 15~30r/min, starting device, sorting cylinder 8 rotates under the driving of actuating device 3, owing to sorting cylinder 8 is externally provided with the multistage magnetic system with different magnetic field intensity, low-intensity magnetic field magnetic system 6 and high-intensity magnetic field magnetic system 7 form the sorting space with different magnetic field intensity and magnetic field gradient between sorting cylinder 8 and deflector 12;
The magnetic iron ore of concentration about 35%~50% is after one section of ball mill is discharged, sorting space is flowed into from feed launder, the granularity of the monomer dissociation magnetic iron ore monomer particle less than 0.2mm due to magnetic very strong, it is adsorbed on sorting cylinder 8 inner surface by low-intensity magnetic field magnetic system 6, it is carried into sorting cylinder 8 top with the rotation of sorting cylinder 8, fall into concentrate hopper 4 unloading the effect with wash tub pipe 9 of the ore deposit scraper plate, become the fine-grained magnetite concentrate that grade is higher;
(granularity is be more than or equal to 0.2mm) intergrowth granule that not yet complete monomer dissociation, granularity are thicker, owing to magnetic is more weak, it is adsorbed at sorting cylinder 8 inner surface by high-intensity magnetic field magnetic system 7, being carried into sorting cylinder 8 top with the rotation of sorting cylinder 8, falling into chats groove 10 in the effect unloading ore deposit scraper plate and wash tub pipe 9 becomes the chats that grade is slightly lower, granularity is thicker;
The gangue mineral of monomer dissociation cannot be adsorbed by magnetic field, becomes mine tailing with ore pulp flowing along sorting inflow tail-box 13 bottom cylinder 8 under gravity;
2) concentrate of gained is directly entered follow-up mill and is elected to be industry, and the thicker chats of granularity then returns one section of ball mill and constitutes closed circuit, and mine tailing is then abandoned directly as true tailings.
Dispersion water pipe 11 can reduce magnetic in concentrate and chats move with sorting cylinder 8 and be mingled with, to improve the grade of concentrate and chats;Deflector 12 can effectively control to sort the height of the ore pulp that flows in cylinder 8, it is ensured that all pulp flows are within the effective depth in magnetic field, thus ensureing the metal recovery rate of whole assorting room.
One section of ball milling ore discharge in sorting for magnetic iron ore, can be thrown in advance except the gangue mineral of 15%~30% monomer dissociation by this utility model, intergrowth thicker to magnetic iron ore thinner for 25%~30% granularity and 40%~60% Relative Size can be separated again, the thinner magnetic iron ore of the granularity that obtains can be directly entered follow-up mill and be elected to be industry, and the coarse grain intergrowth chats obtained then returns one section of ball milling and constitutes closed cycle.The mine tailing obtained by this utility model is thicker due to Relative Size, it is possible to directly stores up after dewatering, reduces the burden of Tailings Dam, extends its length of service.

Claims (3)

1. the three products magnetic separator having tailings discarding by preconcentration and thickness grading concurrently, including frame, charging gear, actuating device, urceolus, magnetic system, sorting cylinder, wash tub pipe, it is characterized in that, also include unloading ore deposit scraper plate, dispersion water pipe, deflector, chats groove, concentrate hopper, tail-box;Described magnetic system includes high-intensity magnetic field magnetic system, low-intensity magnetic field magnetic system;
Frame head end is provided with charging gear;The angle of urceolus and horizontal direction is 5 °, and urceolus is fixed in frame;
Sorting cylinder is co-axially located at outer barrel, arranges low-intensity magnetic field magnetic system, high-intensity magnetic field magnetic system between sorting cylinder and urceolus;
Described low-intensity magnetic field magnetic system is arranged on urceolus head, and magnetic field intensity is 800~1600Gs, is made up of ferrite permanent-magnet materials, is fixed on outer tube inner wall by permeability magnetic material;
Described high-intensity magnetic field magnetic system is arranged on urceolus afterbody, and magnetic field intensity is 2000~4500Gs, is made up of Ferrite Material and NdFeB material, is fixed on outer tube inner wall by permeability magnetic material;
Deflector is arcuate structure, is arranged on the lower section in sorting cylinder;
Unload ore deposit scraper plate and be arranged at, with wash tub pipe, the top sorting cylinder interior;
Dispersion water pipe is arranged at the centre of sorting cylinder interior near magnetic system side;
Concentrate hopper is arranged at sorting cylinder head end, unloads the lower section of ore deposit scraper plate and wash tub pipe, and end extension is fixed on frame head;
Chats groove is arranged at sorting cylinder tail end, unloads the underface of ore deposit scraper plate and wash tub pipe, and end extension is fixed on frame aft;
Tail-box is arranged at the bottom of sorting cylinder tail end.
2. a kind of three products magnetic separator having tailings discarding by preconcentration and thickness grading concurrently according to claim 1, it is characterised in that the cornerite of described low-intensity magnetic field magnetic system's magnetic and high-intensity magnetic field magnetic system is 270 °.
3. a kind of three products magnetic separator having tailings discarding by preconcentration and thickness grading concurrently according to claim 1, it is characterised in that the cornerite of described deflector is 180 °, deflector is adjustable with sorting cylinder spacing.
CN201620077698.1U 2016-01-26 2016-01-26 It throws tail and thickness three hierarchical product magnet separators to have preliminary election concurrently Active CN205361641U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105536984A (en) * 2016-01-26 2016-05-04 辽宁科技大学 Magnetic separation method with both preselection tailing throwing and thick-fine separation and three-product magnetic separator
CN106733165A (en) * 2017-03-10 2017-05-31 北京矿冶研究总院 A kind of drum magnetic separator with broken and divergent function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105536984A (en) * 2016-01-26 2016-05-04 辽宁科技大学 Magnetic separation method with both preselection tailing throwing and thick-fine separation and three-product magnetic separator
CN105536984B (en) * 2016-01-26 2019-04-05 辽宁科技大学 A kind of magnetic selection method having both tailings discarding by preconcentration and thickness grading and three product magnetic separators
CN106733165A (en) * 2017-03-10 2017-05-31 北京矿冶研究总院 A kind of drum magnetic separator with broken and divergent function
CN106733165B (en) * 2017-03-10 2018-12-21 北京矿冶研究总院 It is a kind of with the broken drum magnetic separator with divergent function

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