Pulsation magnetic separation post
Technical field
The utility model is a kind of mine ore dressing equipment, specifically is a kind of pulsation magnetic separation post that is used for selected magnetic ore.
Background technology
In magnetite separation, magnetic separation is a kind of simple, economic, effective beneficiation method commonly used, for obtaining more high-grade magnetic concentrate, has developed multiple magnetic separation picking equipment in recent years, mainly contains following several types:
Magnetic agglomeration gravity separator: magnetic, middle magnetic, three layers of permanent magnetic system of outer magnetic in it adopts, form non-uniform magnetic field, make ore particle form magnetic coagulation in minute constituency, the sorting current with certain pressure from feeding the constituency to water ring, ore pulp is applied shear action, ore particle is disperseed in no field regions, ore particle is in reunion all the time in the gravitational settling process like this---dispersion---aggregating state, gangue is gone out by water and is improved concentrate grade.
The magnetic separation post: this equipment magnetic system is made up of 6 magnetizing coils, direct current supply, the outage of circulation energising from top to bottom cuts in and out magnetic field, order downwards, move in circles, tangent line feedwater in magnetic separation post bottom produces ascending current, under magnetic force and the synergy of ascending current impulse force, ore particle is constantly reunited from top to bottom---dispersion---reunites, and gangue and intergrowth are rushed out, and improves concentrate grade.
Impulse oscillation magnetic field magnetic separator: this magnetic separator utilizes charge and discharge process, form magnetic field in coil, utilize circuits for triggering to control charge and discharge process, make each coil that special energising mechanism be arranged, instantaneous discharge---interruption---discharge, form oscillating magnetic field, combine with ascending current and realized magnetic coagulation---the sorting mode of dispersion, improve concentrate grade.
Magnetic separating circular column: be follow-on magnetic separation post, grading principle is close with the magnetic separation post, but looser to the feed preparation unit size requirement, treating capacity is bigger.
Facts have proved, above-mentioned all kinds magnetic separation picking equipment is effective equipment to improving the natural magnetite concentrate grade, the magnetic architecture of these equipment and grading principle have a common ground, the magnetic field that utilizes the magnetic system of magnetizing to produce exactly makes the ore particle magnetic coagulation, the ascending current impulse force that utilization breaks away from behind the magnetic field disperses ore particle, little for natural magnetite owing to its remanent magnetism, magnetic coagulation is looser, this method is effectively, but big owing to its remanent magnetism for vanadium titano-magnetite, magnetic coagulation is tight, only rely on the impulse force of ascending current to be difficult to magnetic coagulation is opened, the concentrate grade increase rate is very limited, and water consumption is big, and economic benefit is relatively poor.
Summary of the invention
The utility model is exactly the problem that exists at above-mentioned magnetic separation picking equipment, and a kind of pulsation magnetic separation post is provided, and has adopted brand-new magnetic architecture and the grading principle different with domestic existing magnetic separation picking equipment, has solved magnetic coagulation and has been difficult for disperseing and the big problem of water consumption.
The purpose of this utility model is to realize like this, it is by mine-feeding equipment, bracing frame, mine tailing chute, magnetic separation cylinder, magnetic system, electric control gear, concentrate outlet, feed pipe are formed, be characterized in that magnetic system is made of coil groups, coil groups is taken off magnetic coil by dc magnetizing coil, pulse and is formed, and excitatory, take off magnetic coil and be staggered.
Magnetic separation post magnetic of the present utility model is to be made up of 2~5 coil groups, each coil groups is made up of 2~5 coils, the coil groups interior loop adopts dc magnetizing coil, pulse to take off the magnetic coil form that is staggered, and the coil number of coil groups number and each coil groups is to determine according to ore character with to the requirement of concentrate grade.
Advantage of the present utility model and effect are, adopt excitatory, take off magnetic and replace arrangement, magnetic field cuts in and out in assorting room, the time and the reunion of magnetizing, the time and take off magnetic and disperse, order moves in circles from top to bottom, selected material is repeatedly magnetized reunite in cylinder and takes off magnetic and disperse, under the ascending current momentum effect, gangue and intergrowth are separated from aggregate, disperseed, gangue is removed fully owing to have the magnetic of taking off, concentrate grade height not only, and the discharge that rises can reduce, thereby also can save the water yield, realizes the purpose of water saving.
Description of drawings
Accompanying drawing is a structural profile schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated
As shown in the figure, the utility model is by mine-feeding equipment 1, bracing frame 2 and 6, mine tailing chute 3, magnetic separation cylinder 4, electric control gear 5, concentrate outlet 7, feed pipe 8 and magnetic system form, be characterized in that magnetic system is made of coil groups, coil groups is taken off magnetic coil 9 by dc magnetizing coil 10, pulse and is formed, and adopts dc magnetizing coil, pulse to take off the magnetic coil form that is staggered.
Magnetic separation post magnetic of the present utility model is to be made up of 2~5 coil groups, each coil groups is made up of 2~5 coils, the coil groups interior loop adopts dc magnetizing coil, pulse to take off the magnetic coil form that is staggered, and the coil groups number of employing and the coil number of each coil groups are to determine according to ore character with to the requirement of concentrate grade.
Introduce the course of work of the present utility model with a specific embodiment below, 3 coil groups are selected by the magnetic of present embodiment system, and each coil groups is taken off magnetic coil by two dc magnetizing coils and a pulse and formed, by excitatory, take off magnetic, the arrangement of excitatory interlace mode.Its course of work is as follows, magnetic separation cylinder 4 is down fixing bracing frame 6, with mine-feeding equipment 1 and 3 assemblings of mine tailing chute, magnetic is 9,10 are enclosed within magnetic separation cylinder 4 outsides, magnetic separation cylinder 4 arranged beneath tangent line feed pipes 8, the bottom is a concentrate outlet 7, ore pulp enters last dc magnetizing coil 10 lower ends of the upper coil group of magnetic system through mine-feeding equipment 1, under the effect of magnetic field, iron mineral in the ore pulp forms magnetic coagulation, aggregate moves downward under the effect of gravity and magnetic force, take off magnetic coil 9 through extra pulse, aggregate is opened under the effect of taking off magnetic magnetic field, ore particle is loose condition (of surface), being mingled with the gangue and the intergrowth that are wrapped in the aggregate is disperseed out, owing to the feed pipe 8 that tangent line feeds is installed in magnetic separation cylinder bottom, discharge for the entry small part from bottom concentrate pipe 7, most of upward water flow that forms, because gangue and the little loose condition (of surface) that is again of intergrowth proportion, decrease speed is slower, when ascending current speed during greater than gangue and the downward sinking speed of intergrowth, gangue and intergrowth just move upward, and form mine tailing and be discharged from entering mine tailing chute 3.And iron mineral is than great, added the reunion of part remanent magnetism, continue descending, with after under this coil groups during the dc magnetizing coil, form magnetic coagulation again, aggregate is under the effect of gravity and magnetic force, continuing to overcome ascending current moves downward, with after next group coil groups repeats above-mentioned assorting room, repeat all can isolate a part of gangue and intergrowth at every turn, make the concentrate grade in the cylinder more and more higher, up to being discharged from, obtain concentrate, thereby realized separating of iron mineral and gangue from concentrate outlet 7.