CN203196753U - Multi-force-field dry magnetic separator - Google Patents
Multi-force-field dry magnetic separator Download PDFInfo
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- CN203196753U CN203196753U CN 201320206128 CN201320206128U CN203196753U CN 203196753 U CN203196753 U CN 203196753U CN 201320206128 CN201320206128 CN 201320206128 CN 201320206128 U CN201320206128 U CN 201320206128U CN 203196753 U CN203196753 U CN 203196753U
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- discharging belt
- dry
- roller
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Abstract
The utility model discloses a multi-force-field dry magnetic separator. The multi-force-field dry magnetic separator comprises a feeding device and a discharging belt arranged above the working face of the feeding device, wherein a magnetic system is mounted at the inner side of the discharging belt; a feeding hole is formed in the feeding end of the feeding device, and a tailing hole is formed at the discharging end of the feeding device; an ore concentrate hole is formed at the discharging end of the discharging belt; rotary ventilating magnetic rollers are arranged between the working face of the feeding device and the discharging belt and comprises a cylinder body and a magnetic system eccentrically arranged in the cylinder body, vent holes are uniformly formed in the surface of the cylinder body, an air inlet is formed in the cylinder body, and pressure gas is introduced into the air inlet; the discharging belt is located above weak magnetic regions of the ventilating magnetic rollers; the magnetic field intensity of the magnetic system on the discharging belt is larger than the magnetic field intensities of the weak magnetic regions of the ventilating magnetic rollers. According to the multi-force-field dry magnetic separator, the wind is introduced into the grading process of materials, so that the multi-force-field separation under the leading of the magnetic field is realized, upsizing requirements on equipment are met, and the grading precision of magnetic materials is greatly improved as well.
Description
Technical field
The utility model belongs to the technical field that is used for the magnetic material sorting behind the milling equipment grinding in the industries such as metallurgy, mine, chemical industry, particularly relates to a kind of many field of forces dry-type magnetic extractor, is particularly useful for diameter less than the sorting of the pulp of 1mm.
Background technology
Magnetic separation is to utilize by the magnetic contrast of sorting material a kind of processing method of separating mineral in magnetic field.Compare with flow process and the application limitation of wet magnetic separation complexity, that dry-type magnetic selection apparatus has is simple in structure, small investment, low, the advantages of energy saving and environmental protection of operating cost, makes dry-type magnetic selection apparatus obtain development faster in recent years.
Along with the extensive utilization of high-pressure roller mill in the grinding field, the conventional dry magnetic separator can't satisfy growing demand of processing quantity.And, because the raw meal particle size after the high-pressure roller mill extruding is usually less than 2mm, the mineral that the conventional dry magnetic separator sorts out usually since disk pack wrap up in and be mingled with and can't satisfy the production needs, must adopt additive method further deeply choosing just can obtain the grade of needs.Moreover because poor iron ore, weakly magnetic iron ore and mineral intergrowth that China's iron ore selects based on difficulty, the grade of sorting mineral is the problem that those skilled in the art hope solution always.Therefore, the high sharpness of separation of magnetic plant, maximization become the developing direction of magnetic plant, have also proposed many solutions in the industry, as:
Application number is 201020214487.0, the applying date is on June 4th, 2010, Granted publication number is CN 201702017U, name is called the Chinese utility model patent of " the strong magnetic roller type magnetic separator of high gradient ", this magnetic separator adopts the ventilative magnetic roller of arrangement of gradients to make material obtain the chance that repeatedly sorts, the mode that adopts the same polarity magnetic patch to arrange strengthens magnetic field intensity, adopts the vibration cutting mode to improve the uniformity of cloth;
Application number is 201210043655.8, the applying date is on February 24th, 2012, application publication number is CN 102580847A, name is called the Chinese invention patent application of " dry-type magnetic extractor ", this dry-type magnetic extractor adopts inflatable shaking chute convey materials to improve the uniformity of cloth, adopts the section of roughly selecting, circular arc to make material obtain repeatedly grading machine meeting for selected section.
Suchlike solution makes the sharpness of separation of mineral obtain lifting to a certain degree, but do not break away from the solution thinking of emphasizing magnetic field high strength and high gradient simply yet, double team can't solve non magnetic being mingled with in the magnetic coagulation that produces in the process of sorting for the fine fraction magnetic material and the flux, thereby cause the mineral grade undesirable, thereby its defective also is apparent.
The utility model content
The purpose of this utility model is exactly at above-mentioned prior art problems, a kind of many field of forces dry-type magnetic extractor is provided, wind-force is incorporated into sorting in the process of magnetic material, makes wind-force participate directly in competition with magnetic force, thereby can significantly promote the precision that sorts of magnetic material.
The purpose of this utility model realizes by following technical proposals:
A kind of many field of forces dry-type magnetic extractor, comprise pay-off and the discharging belt that places pay-off working face top, discharging belt installed inside has magnetic system, the feed end of pay-off arranges charging aperture, delivery end arranges the mine tailing mouth, the delivery end of discharging belt arranges the concentrate mouth, the ventilative magnetic roller of rotation is set between pay-off working face and discharging belt, should comprise cylindrical shell and be eccentrically set on the interior magnetic system of cylindrical shell by ventilative magnetic roller, at the uniform air-vent of drum surface, and offer air inlet and cut-in pressure gas on the cylindrical shell, the discharging belt is in ventilative magnetic roller weak magnetic area top, and the magnetic field intensity of magnetic system is greater than the magnetic field intensity of ventilative magnetic roller weak magnetic area on the discharging belt.
Further, above the mine tailing mouth of pay-off delivery end, be provided with the mouth that gathers dust.
The mouth that gathers dust can sort the dust that produces in the process at conveyer with material and siphon away, thereby avoids contaminated environment.
Further, described pay-off is belt conveyor or inflatable shaking chute or fluid bed.
Further, the cornerite of described magnetic system is 150 ° to 360 °.
Further, described discharging belt is parallel or perpendicular to ventilative magnetic roller axis direction.
When sorting mineral when being single variety, the discharging belt arranges that perpendicular to ventilative magnetic roller axis direction the mineral that single ventilative magnetic roller sorts out all are adsorbed on the same discharging belt, obtain a kind of product.
When sorting material when containing multi mineral, the discharging belt that is parallel to ventilative magnetic roller axis direction is set respectively above each ventilative magnetic roller, the mineral kind that single ventilative magnetic roller sorts out different magnetic intensities is sent into different concentrate mouths, thereby disposable different magnetic material kinds in the mineral intergrowth is carried out sorting.
Further, be set up in parallel plural ventilative magnetic roller along the material traffic direction between described pay-off working face and the discharging belt, and the magnetic field intensity of ventilative magnetic roller is along the gradient setting that grows from weak to strong of material traffic direction.
The ventilative magnetic roller of a plurality of parallel connections is set, all is subjected to the magnetic force sorting when making material to be selected successively through each ventilative magnetic roller, thereby significantly improves the device processes amount.
Further, connect at vertical direction between described pay-off working face and the discharging belt plural ventilative magnetic roller is set.
At vertical direction a plurality of ventilative magnetic rollers of connecting, make material repeatedly be subjected to the effect of gravity, wind-force, inertia force and magnetic force in the vertical direction, material obtains repeatedly grading machine meeting, thereby promotes the grade of product greatly.
Further, magnetic in described ventilative magnetic roller system is set to one with cylindrical shell and fixes a rotation, or be set to synchronously, differential, in the same way or reverse common rotation.
Further, cylindrical shell is made by non-magnetic air permeable plate.
Operation principle of the present utility model is as follows:
Material to be selected is fed into pay-off from charging aperture, and moves forward with pay-off, and when the material process was breathed freely the magnetic roller, magnetic material was adsorbed to ventilative magnetic roller surface under magneticaction, rotates with ventilative magnetic roller to move up.Spray because of ventilative magnetic roller inner access pressed gas and from drum surface, the non-magnetic material that wraps up in the material and be mingled with comes off from ventilative magnetic roller drum surface under gravity, velocity inertial and wind-force effect, the lightweight wind that gathered dust pulls away, and heavier moves to the mine tailing mouth with pay-off.Because the roller of ventilative magnetic roller and magnetic core adopt arranged off-centre, the magnetic material that is adsorbed on roller surface suffered magnetic force in the process that moves up is more and more littler, forms higher gradient magnetic field, more helps to be mingled with coming off of gangue.When material arrives the magnetic force juncture area of ventilative magnetic roller and discharging belt, because the magnetic field intensity of discharging belt magnetic system is higher than the magnetic field intensity of ventilative magnetic roller weak magnetic area, the magnetic material that is adsorbed on roller surface is adsorbed to discharging belt working face, parcel and the non-magnetic material that is mingled with come off again under the gravity effect and move to the mine tailing mouth with pay-off, magnetic material then with the movement of overturning forward of discharging belt, falls into the concentrate mouth at last.
Compared with prior art, the beneficial effects of the utility model are:
The ventilative magnetic roller of a plurality of parallel connections that magnetic field intensity increases progressively can be set, all can be subjected to the magnetic force sorting when making material to be selected successively through each ventilative magnetic roller, thereby make that the treating capacity of equipment is enough big; Owing to form magnetic field gradient between each ventilative magnetic roller, magnetic is different in the material to be selected material during through each ventilative magnetic roller by by being chosen respectively to weak by force, by above each ventilative magnetic roller, the mineral kind that the discharging belt just can obtain different magnetic intensities being set respectively, thereby can disposablely carry out sorting to different magnetic material kinds in the mineral intergrowth.Also can require to arrange at vertical direction a plurality of ventilative magnetic roller of series connection according to product grade, rotation upwards and at weak magnetic area was adsorbed to second, the 3rd ventilative magnetic roller surface after material was adsorbed onto first ventilative magnetic roller, material repeatedly is subjected to the effect of gravity, wind-force, velocity inertial and magnetic force in the vertical direction in this process, make material obtain repeatedly grading machine meeting, promoted the grade of product greatly.Sort in the process whole more in addition, material is subjected to the effect of ventilative magnetic roller internal pressure gas always, make magnetic coagulation force to disperse, non-magnetic material constantly breaks away from from ventilative magnetic roller working face, thereby make wind-force participate directly in the competition with magnetic force, significantly promote the precision that sorts of magnetic material.Therefore under the effect of strengthening magnetic field gradient, wind-force is incorporated into sorting in the process of material, thereby has realized many field of forces sorting of magnetic field under leading, both satisfied the demand of equipment enlarging, also improved the precision that sorts of magnetic material greatly.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of ventilative magnetic roller among Fig. 1;
Fig. 3 is that the discharging belt is parallel to the structural representation when breathing freely magnetic roller axis direction;
Fig. 4 is the another kind of structural representation of the utility model.
The specific embodiment
Below in conjunction with specific embodiments and the drawings the utility model is further described.
Embodiment one
As depicted in figs. 1 and 2, a kind of many field of forces dry-type magnetic extractor, comprise pay-off 1 and the discharging belt 6 that places pay-off 1 working face top, discharging belt 6 installed inside have magnetic system, the feed end of pay-off 1 arranges charging aperture 4, delivery end arranges mine tailing mouth 7, the delivery end of discharging belt 6 arranges concentrate mouth 8, the ventilative magnetic roller 2 of rotation is set between pay-off 1 working face and discharging belt 6 working faces, should comprise cylindrical shell 9 and be eccentrically set on cylindrical shell 9 interior magnetic to be 10 by ventilative magnetic roller 2, magnetic is that 10 cornerite is 360 °, cylindrical shell 9 is made by non-magnetic air permeable plate, and cylindrical shell 9 end faces offer air inlet 5 and cut-in pressure gas, and discharging belt 6 is in ventilative magnetic roller 2 weak magnetic areas top, and the magnetic field intensity of magnetic system is greater than the magnetic field intensity of ventilative magnetic roller 2 weak magnetic areas on the discharging belt 6.
Above-mentioned pay-off 1 adopts the inflatable shaking chute, along the material traffic direction the ventilative magnetic roller 2 that two magnetic field intensities increase progressively is set, and the rotating speed of ventilative magnetic roller 2 is adjustable.Cylindrical shell 9 and the magnetic of ventilative magnetic roller 2 is 10 can be set to one and fix a rotation, also can be set to synchronously or differential, in the same way or oppositely common rotation.
During work, material to be selected drops into the inflatable shaking chute from charging aperture 4, and material to be selected moves in strength and vibration force effect lower edge skewed slot, and when breathing freely magnetic roller 2 through weak magnetic, strongly magnetic material and parcel thereof, field trash are adsorbed to roller surface.Because ventilative magnetic roller 2 sprays from air inlet 5 cut-in pressure gases and from cylindrical shell 9 surfaces, the material that is adsorbed on ventilative magnetic roller 2 surfaces is subjected to the effect of magnetic force, gravity and wind-force simultaneously, be that wind-force, gravity, inertia force and magnetic force form competition, continue to move forward so be adsorbed on non-magnetic material and the weakly magnetic material disengaging on ventilative magnetic roller 2 surfaces and drop to pay-off 1 working face, strongly magnetic material then rotates with ventilative magnetic roller 2.Because the magnetic core in the ventilative magnetic roller is arranged off-centre, the material that the is adsorbed on ventilative magnetic roller 2 surfaces suffered magnetic force that more moves up is more little, when it arrives the magnetic force juncture area of ventilative magnetic roller 2 and discharging belt 6, because the magnetic field intensity of discharging belt 6 magnetic system is higher than the magnetic field intensity of ventilative magnetic roller 2 weak magnetic areas, the magnetic material that is adsorbed on ventilative magnetic roller 2 surfaces is adsorbed to discharging belt 6 working faces, the non-magnetic material that pressure disperses comes off again under gravity and inertia force effect and drops to pay-off 1 working face and continues to move forward, and the magnetic material that sorts out then moves forward with discharging belt 6 and falls into concentrate mouth 8.Along with material continues reach at pay-off 1, when material was breathed freely magnetic roller 2 through strong magnetic, weakly magnetic material repeated the process that sorts of ventilative magnetic roller 2 again and is admitted to concentrate mouth 8, and mine tailing then is discharged into mine tailing mouth 7.Because material all may produce dust carrying and sort in the process, gather dust mouthfuls 3 and link to each other with mine tailing mouth 7 so above mine tailing mouth 7, be provided with, thereby avoid the pollution to environment.
Ventilative magnetic roller 2 quantity in the present embodiment can be according to the production capacity increase in demand, and the ventilative magnetic roller 2 that can increase progressively along mass transport direction a plurality of magnetic field intensities in parallel makes material to be selected obtain repeatedly grading machine meeting, reaches the purpose of increase output.
As shown in figures 1 and 3, the discharging belt 6 in the present embodiment is can be according to the mineral kind that sorts parallel or arrange perpendicular to ventilative magnetic roller 2 axis directions.When sorting mineral when being single variety, discharging belt 6 arranges that perpendicular to ventilative magnetic roller 2 axis directions the mineral that single ventilative magnetic roller 2 sorts out all are adsorbed on the same discharging belt 6, obtain a kind of product; When sorting material when containing multi mineral, the discharging belt 6 that is parallel to ventilative magnetic roller 2 axis directions is set respectively above each ventilative magnetic roller 2, the mineral that single ventilative magnetic roller 2 sorts are out sent into different concentrate mouths respectively, thereby obtain multiple product.
Embodiment two
As shown in Figure 4, present embodiment has increased the quantity at the ventilative magnetic roller 2 of vertical direction series connection on the basis of embodiment one, namely at two ventilative magnetic roller 2a1, the corresponding series connection of 2b1 vertical direction ventilative magnetic roller 2a2,2b2.The process that sorts and the embodiment one of present embodiment material are similar, namely be adsorbed to ventilative magnetic roller 2a1,2b1 surface during through ventilative magnetic roller 2a1,2b1 and move up with it when material, when the ventilative magnetic roller 2a2 that arrives the vertical direction series connection, 2b2 magneticaction district, the magnetic material upset is adsorbed onto its surface, non-magnetic material drops on pay-off 1 surface under gravity and wind-force effect and finally falls into mine tailing mouth 7, and ventilative magnetic roller 2a2, the 2b2 that magnetic material is then connected takes on the discharging belt 6 and finally fall into concentrate mouth 8.Certainly, the ventilative magnetic roller quantity of vertical direction series connection can sort required precision according to product in the present embodiment increases, and makes the material in the vertical direction obtain repeatedly grading machine meeting, thereby improves the precision that sorts of material.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. field of force dry-type magnetic extractor more than a kind, comprise pay-off and the discharging belt that places pay-off working face top, discharging belt installed inside has magnetic system, it is characterized in that: the feed end of pay-off arranges charging aperture, delivery end arranges the mine tailing mouth, the delivery end of discharging belt arranges the concentrate mouth, the ventilative magnetic roller of rotation is set between pay-off working face and discharging belt, should comprise cylindrical shell and be eccentrically set on the interior magnetic system of cylindrical shell by ventilative magnetic roller, at the uniform air-vent of drum surface, and offer air inlet and cut-in pressure gas on the cylindrical shell, the discharging belt is in ventilative magnetic roller weak magnetic area top, and the magnetic field intensity of magnetic system is greater than the magnetic field intensity of ventilative magnetic roller weak magnetic area on the discharging belt.
2. many field of forces according to claim 1 dry-type magnetic extractor is characterized in that: be provided with the mouth that gathers dust above the mine tailing mouth of pay-off delivery end.
3. many field of forces according to claim 2 dry-type magnetic extractor is characterized in that: described pay-off is belt conveyor or inflatable shaking chute or fluid bed.
4. many field of forces according to claim 3 dry-type magnetic extractor is characterized in that: the cornerite that described magnetic is is 150 ° to 360 °.
5. many field of forces according to claim 4 dry-type magnetic extractor is characterized in that: described discharging belt is parallel or perpendicular to ventilative magnetic roller axis direction.
6. many field of forces according to claim 5 dry-type magnetic extractor, it is characterized in that: be set up in parallel plural ventilative magnetic roller along the material traffic direction between described pay-off working face and the discharging belt, and the magnetic field intensity of ventilative magnetic roller is along the gradient setting that grows from weak to strong of material traffic direction.
7. many field of forces according to claim 6 dry-type magnetic extractor is characterized in that: connecting at vertical direction between described pay-off working face and the discharging belt arranges plural ventilative magnetic roller.
8. many field of forces according to claim 1 dry-type magnetic extractor is characterized in that: magnetic in described ventilative magnetic roller system is set to one with cylindrical shell and fixes a rotation, or be set to synchronously, differential, in the same way or reverse common rotation.
9. many field of forces according to claim 1 dry-type magnetic extractor is characterized in that: cylindrical shell is made by non-magnetic air permeable plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206128 CN203196753U (en) | 2013-04-23 | 2013-04-23 | Multi-force-field dry magnetic separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206128 CN203196753U (en) | 2013-04-23 | 2013-04-23 | Multi-force-field dry magnetic separator |
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| Publication Number | Publication Date |
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| CN203196753U true CN203196753U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320206128 Withdrawn - After Issue CN203196753U (en) | 2013-04-23 | 2013-04-23 | Multi-force-field dry magnetic separator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203283A (en) * | 2013-04-23 | 2013-07-17 | 成都利君实业股份有限公司 | Multi-force-field dry magnetic separator |
| CN113843040A (en) * | 2021-12-01 | 2021-12-28 | 潍坊百特磁电科技有限公司 | Comprehensive mineral processing equipment and method for weakly magnetic minerals |
-
2013
- 2013-04-23 CN CN 201320206128 patent/CN203196753U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203283A (en) * | 2013-04-23 | 2013-07-17 | 成都利君实业股份有限公司 | Multi-force-field dry magnetic separator |
| CN103203283B (en) * | 2013-04-23 | 2015-09-30 | 成都利君实业股份有限公司 | Many field of forces dry-type magnetic extractor |
| CN113843040A (en) * | 2021-12-01 | 2021-12-28 | 潍坊百特磁电科技有限公司 | Comprehensive mineral processing equipment and method for weakly magnetic minerals |
| CN113843040B (en) * | 2021-12-01 | 2022-03-01 | 潍坊百特磁电科技有限公司 | Comprehensive mineral processing equipment and method for weakly magnetic minerals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20150930 |
|
| RGAV | Abandon patent right to avoid regrant |