CN203635320U - Magnetic sorting pre-separator - Google Patents
Magnetic sorting pre-separator Download PDFInfo
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- CN203635320U CN203635320U CN201320871304.6U CN201320871304U CN203635320U CN 203635320 U CN203635320 U CN 203635320U CN 201320871304 U CN201320871304 U CN 201320871304U CN 203635320 U CN203635320 U CN 203635320U
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- magnetic
- roller
- magnetic system
- preliminary election
- mineral
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 148
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 229910052742 iron Inorganic materials 0.000 claims description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 35
- 239000011707 mineral Substances 0.000 abstract description 35
- 239000012141 concentrate Substances 0.000 abstract description 11
- 238000007885 magnetic separation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 26
- 239000002245 particle Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 16
- 239000000696 magnetic material Substances 0.000 description 12
- 208000032563 Buccal mucosal roughening Diseases 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 235000020985 whole grains Nutrition 0.000 description 7
- 235000013339 cereals Nutrition 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 230000005307 ferromagnetism Effects 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Abstract
The utility model discloses a magnetic sorting pre-separator and belongs to the technical field of mineral magnetic separation. The magnetic sorting pre-separator comprises a body, wherein a roller is arranged in the body; a magnetic system which is arrayed to form a cylinder shape is arranged in the roller, is eccentric to the roller, and can rotate relative to the roller; a charging hole formed in the top of the body obliquely extends to the position above the roller; a tailing port, a crude ore port and a fine ore port are sequentially formed in the position, below the magnetic system, at the bottom of the body from a strongly magnetic area to a weakly magnetic area. According to the magnetic sorting pre-separator, strongly-magnetic minerals of all fractions of 0-50mm can be subjected to tailing discarding, and is subjected to effective size grading to enable concentrate and intergrowth bodies to be preliminarily separated, so that the beneficiation flow is greatly simplified.
Description
Technical field
The utility model relates to the magnetic plant that the industry such as mine and metallurgy is used, and the principle that when particularly the varigrained magnetic mineral of a kind of use is caught by magnetic field, required magnetic force varies in size is carried out the magnetic force classification preliminary election machine of grading to material.
Background technology
In the industries such as mine and metallurgy, need to sort mineral, wherein the raw meal particle size of mineral to be selected is often larger, as directly exploited mineral out from mine, more than its maximum lumpiness is generally hundreds of millimeters.But every kind of method for separating has its suitable feeding granularity, not only require the different component in mineral to be dissociated fully, also require ore particle to cross degree of grinding lighter simultaneously.Therefore, utilizing the preparation works such as broken, grinding and grading to prepare to meet the mineral grade of separation operation requirement is the primary prerequisite of mineral being carried out to effective sorting.
Traditional classifying equipoment of controlling magnetic separation feed preparation unit size mainly contains vibratory sieve and wind-force powder concentrator, and along with high-pressure roller mill is in the extensive use in grinding field, mine, traditional material grading apparatus has been subject to great challenge: when 1, screen size is 3mm left and right, the disposal ability of vibratory sieve is approximately 14t/(hm
2), with respect to the high-pressure roller mill material treating capacity of hundreds and thousands of tons easily, its disposal ability far from can meet system requirements, adds sieve aperture and holds susceptible to plugging natural defect, makes the application of vibratory sieve become uneconomical or even infeasible; 2,, due to too high specific energy consumption (for the classification of millimeter rank particle, the specific energy consumption of air classification system is up to 2～3kwh/t), make the hierarchy plan that wind-force powder concentrator neither be desirable.
And, the disseminated grain size of China's magnetic iron ore is extremely inhomogeneous, from several microns to several millimeters, have, but within the disseminated grain size of most magnetic iron ores is mainly distributed in the scope of 0.05mm～0.50mm, obviously, the magnetite ore particles of particle diameter >=0.5mm is all intergrowth substantially, also needs further fragmentation to be beneficial to magnetic separating; And no matter traditional screening installation is vibratory sieve or air classification, the material of sorting all includes magnetic material and a large amount of non-magnetic material, thereby makes follow-up processing flow complexity.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, a kind of magnetic force classification preliminary election machine is provided, the principle that while utilizing varigrained magnetic mineral to be caught by magnetic field, required magnetic force varies in size is carried out grading to material, not only make the operating efficiency of graded operation have greatly lifting, also make the Energy Intensity Reduction of processed in units amount arrive extremely low degree; Can throw tail to the wholegrain level strongly magnetic mineral of 0-50mm, magnetic mineral is carried out to effective grading, make concentrate and intergrowth by initial gross separation, thereby greatly simplified beneficiation flowsheet.
The technical solution adopted in the utility model is as follows:
Magnetic force classification preliminary election machine of the present utility model, comprises body, in described body, is provided with roller, is provided with the magnetic system that is arranged in tubular in described roller, and described magnetic is with respect to roller arranged off-centre, and can be movable relatively between described magnetic system and roller; The charging aperture arranging on described body top extends roller top obliquely; Magnetic system below on described organism bottom is provided with mine tailing mouth, rough mouthful and fine iron ore hole successively from strong magnetic area to weak magnetic area.
As shown in Figure 2: once reach under mineral disseminated grain size, mineral grain substantially or be pure ferromagnetism magnetic iron ore, or is nonmagnetic gangue content entirely so, therefore can adopt high-intensity magnetic field to separate with non magnetic ore magnetic mineral, and larger containing ferromagnetic mineral material particle diameter, its specific susceptibility is just lower, its suffered magnetic force is with gravity than also just less, and material also just more easily drops under Action of Gravity Field, in the utility model, the wholegrain stage material of 0-50mm after extruding is entered in body from charging aperture, and the surface of falling roller, in magnetic system, effect magnetic material is attracted on the working face of roller outer wall, non-magnetic material is directly from falling into mine tailing mouth, thereby realize the throwing tail of material, in follow-up flow process without again non-magnetic material having been carried out to sorting, overcome the problem of repeatedly non-magnetic material being carried out sorting in prior art, reduced the idle work producing therefrom, and magnetic material is attracted to the surface of roller under the effect of magnetic system, along with the relative motion between magnetic system and roller (magnetic system or roller motion, or magnetic system moves with roller simultaneously, but exist the movement velocity poor), magnetic material moves at roller surface under magneticaction, due to the eccentric setting between magnetic system and roller, therefore magnetic field intensity is successively decreased successively along Material moving track, therefore granularity is larger, the weak material particles of magnetic takes the lead in dropping from roller surface, particle diameter is less, the particle that magnetic is stronger can more lately drop, will make like this magnetic-particle distribute according to the descending rule of particle diameter below magnetic system, the magnetic ore particle that is attracted to roller working face also moves at roller surface, because suffered magnetic force reduces gradually, ore particle is fallen into rough mouth and fine iron ore hole from the outer surface of roller successively by granularity order from big to small under the effect of gravity, thereby realize concentrate and the preliminary classification that needs the intergrowth of further processing.
Magnetic force classification preliminary election machine of the present utility model, the described magnetic of stating is that eccentric throw is adjustable between roller, and described magnetic is that the line of central point and roller central point is ± 60 ° with respect to horizontal angle, described magnetic is that in the magnetic field intensity producing, highfield district is greater than 3000Gs, and downfield district is less than 350Gs.
Because eccentric throw between magnetic system and roller is adjustable, make it can carry out according to actual needs the adjusting of eccentric throw, as shown in Figure 1, magnetic system regulates its position on can be horizontal and vertical in roller, wherein determining positions transversely magnetic tie up to the size of the magnetic force that roller surface produces, can regulate as required; Wherein the determining positions on longitudinally the position relationship between roller and charging aperture, thereby determined the inclination angle of pan feeding, then can control the time of staying of material at roller surface, guarantee that it throws the effect of tail.Jiang Cixi center is limited in certain area, makes magnetic system more excellent with coordinating the grading effect of material of roller; This region is that magnetic is that the line of central point and roller central point is the region of ± 60 ° with respect to horizontal angle, also set up coordinate system with the central point of roller in Fig. 1, the region of this region between 0-60 °, 120 °-240 ° and 300 °-360 °, certainly in adjusting the eccentric throw at Ci Xi center and roller center, need to control magnetic is can not interfere between outer wall and roller inwall, thereby guarantee that whole preliminary election machine throws tail to the wholegrain level strongly magnetic mineral of 0-50mm, magnetic mineral is carried out to effective grading effect in more excellent state.The strict highfield district that controls is greater than 3000Gs, and downfield district is less than 350Gs, can carry out effective grading to magnetic mineral, makes concentrate and intergrowth by initial gross separation, thereby has greatly simplified beneficiation flowsheet.
Magnetic force classification preliminary election machine of the present utility model, can relatively rotate between described magnetic system and roller; The rotating speed of described magnetic system and/or roller is less than 500rpm.
Owing to having adopted said structure, between magnetic system and roller, adopt mode in relative rotation to move, be convenient to control its relative motion; The too fast meeting of rotating speed make separate after magnetic mineral in classification process, produce larger error, rough being subject under the effect of larger centrifugal force, probably fallen in fine iron ore hole, also just cannot realize to concentrate and intergrowth the effect of initial gross separation, therefore need the rotating speed of controlling magnetic system and roller to be less than 500rpm, guarantee magnetic mineral to carry out thick smart initial gross separation, thereby greatly simplified beneficiation flowsheet.
Magnetic force classification preliminary election machine of the present utility model, described rough mouth and fine iron ore hole can be one or more, and are provided with the granularity adjustable plate that can move horizontally between two mine mouths of arbitrary neighborhood.
Owing to having adopted said structure, described rough mouth and fine iron ore hole can arrange respectively one or more according to granularity requirements, below roller, be provided with the granularity adjustable plate that can move horizontally, can regulate the position of adjustable plate according to the requirement of magnetic separation feed preparation unit size, thereby make varigrained material fall into respectively rough mouthful and fine iron ore hole.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, magnetic force classification preliminary election machine of the present utility model, the principle that while utilizing varigrained magnetic mineral to be caught by magnetic field, required magnetic force varies in size is carried out grading to material, not only make the operating efficiency of graded operation have greatly lifting, also make the Energy Intensity Reduction of processed in units amount arrive extremely low degree;
2, magnetic force classification preliminary election machine of the present utility model, can throw tail to the wholegrain level strongly magnetic mineral of 0-50mm, and magnetic mineral is carried out to effective grading, makes concentrate and intergrowth by initial gross separation, thereby has greatly simplified beneficiation flowsheet.
Accompanying drawing explanation
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is magnetic force coefficient HgradH and the particle size graph of a relation of the different intergrowth of Armco magnetic iron content in the utility model.
Mark in figure: 1-charging aperture, 2-magnetic system, 3-roller, 4-granularity adjustable plate, 5-mine tailing mouth, rough mouthful of 6-, 7-fine iron ore hole.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, magnetic force classification preliminary election machine of the present utility model, comprise body, in described body, be provided with roller 3, in described roller 3, being provided with the magnetic that is arranged in tubular is 2, described magnetic is 2 with respect to roller 3 arranged off-centre, described in state magnetic be 2 and roller 3 between eccentric throw adjustable, and described magnetic is that the line of 2 central points and roller 3 central points is ± 60 ° with respect to horizontal angle; And described magnetic be 2 and roller 3 between can relatively rotate, described magnetic be 2 and/or the rotating speed of roller 3 be 500rpm and following; The charging aperture 1 arranging on described body top extends roller 3 tops obliquely; The bottom of described body is provided with mine tailing mouth 5, rough mouthful 6 and fine iron ore hole 7, mine tailing mouth 5, rough mouthfuls 6 and fine iron ore hole 7 be to distribute successively from strong magnetic area to weak magnetic area below 2 at magnetic, described mine tailing mouth 5 is positioned at the limit subordinate side of roller 3 outer walls, and described rough mouth 6 and fine iron ore hole 7 are located on the circumferencial direction of roller 3 belows; Described rough mouth 6 and fine iron ore hole 7 can be one or more, and are provided with the granularity adjustable plate 4 that can move horizontally between two mine mouths of arbitrary neighborhood; Described rough mouth and fine iron ore hole can arrange respectively one or more according to granularity requirements, below roller 3, be provided with the granularity adjustable plate that can move horizontally, can regulate the position of adjustable plate according to the requirement of magnetic separation feed preparation unit size, thereby make varigrained material fall into respectively rough mouthful and fine iron ore hole.Described magnetic be 2 and roller 3 between can relatively rotate, making described magnetic is that in the magnetic field intensity of 2 generations, highfield district is greater than 3000Gs, downfield district is less than 350Gs, thereby can carry out effective grading to magnetic mineral, make concentrate and intergrowth by initial gross separation, thereby greatly simplified beneficiation flowsheet; The too small meeting in highfield makes the material particles that granularity is large, magnetic is weak can not depend on quickly roller 3 surfaces, and has directly fallen into mine tailing mouth, can not carry out effective classification preliminary election to mineral aggregate, and its preliminary election effect is poor; And the magnetic field intensity of working as downfield district is excessive, granularity is large, magnetic is weak can depend on roller 3 surfaces muchly, when having missed rough mouthful, material still do not fall to wherein, the particle that in like manner particle diameter is less, magnetic is stronger also cannot drop in concentrate mouth, therefore just can not realize concentrate and the preliminary classification that needs the intergrowth of further processing, make the poor effect of this preliminary election machine.
As shown in Figure 2: once reach under mineral disseminated grain size, mineral grain substantially or be pure ferromagnetism magnetic iron ore, or is nonmagnetic gangue content entirely so, therefore can adopt high-intensity magnetic field to separate with non magnetic ore magnetic mineral, and larger containing ferromagnetic mineral material particle diameter, its specific susceptibility is just lower, its suffered magnetic force is with gravity than also just less, and material also just more easily drops under Action of Gravity Field, in the utility model, the wholegrain stage material of 0-50mm after extruding is entered in body from charging aperture, and the surface of falling roller 3, be that 2 effect magnetic materials are attracted on the working face of roller 3 outer walls at magnetic, non-magnetic material is directly from falling in the limit portion mine tailing mouth of roller 3 outer walls, thereby in follow-up flow process, without again mine tailing being carried out to sorting, reduced the idle work producing therefrom, and magnetic material is the surface that is attracted to roller 3 under 2 effect at magnetic, along with magnetic be 2 and roller 3 between relative motion (magnetic be 2 or roller 3 move, or magnetic is 2 to move with roller 3 simultaneously, but there is the speed difference of relative motion, in this example, choosing roller 3 rotates, and magnetic is motionless, other situation can be implemented with reference to this example, is 2 to rotate with roller 3 as made magnetic simultaneously, control magnetic be 2 and roller 3 between difference in rotation and rotation direction can realize this routine function), magnetic material is mobile on roller 3 surfaces under magneticaction, due to magnetic be 2 and roller 3 between eccentric setting, therefore magnetic field intensity is successively decreased successively along Material moving track, therefore granularity is larger, the weak material particles of magnetic takes the lead in dropping from roller 3 surfaces, particle diameter is less, the particle that magnetic is stronger can more lately drop, will make like this magnetic-particle is to distribute according to the descending rule of particle diameter below 2 at magnetic, also the magnetic ore particle that is attracted to roller 3 working faces is also mobile on roller 3 surfaces, because suffered magnetic force reduces gradually, ore particle is fallen into rough mouth and fine iron ore hole from the outer surface of roller 3 successively by granularity order from big to small under the effect of gravity, therefore rough mouth and fine iron ore hole are located on the circumferencial direction of roller 3 belows, thereby realize concentrate and the preliminary classification that needs the intergrowth of further processing.Due to magnetic be 2 and roller 3 between eccentric throw adjustable, make it can carry out according to actual needs the adjusting of eccentric throw, as shown in Figure 1, magnetic is 2 can regulate its position on horizontal and vertical roller 3 is interior, wherein determining positions transversely magnetic tie up to the size of the magnetic force that roller surface produces, can regulate as required; Wherein the determining positions on longitudinally the position relationship between roller and charging aperture, thereby determined the inclination angle of pan feeding, then can control the time of staying of material at roller surface, guarantee that it throws the effect of tail.Jiang Cixi center is limited in certain area, makes magnetic system more excellent with coordinating the grading effect of material of roller; This region is that magnetic is that the line of central point and roller central point is the region of ± 60 ° with respect to horizontal angle, also set up coordinate system with the central point of roller in Fig. 1, the region of this region between 0-60 °, 120 °-240 ° and 300 °-360 °, certainly in adjusting the eccentric throw at Ci Xi center and roller center, need to control magnetic is can not interfere between outer wall and roller inwall, thereby guarantee that whole preliminary election machine throws tail to the wholegrain level strongly magnetic mineral of 0-50mm, magnetic mineral is carried out to effective grading effect in more excellent state.
Magnetic force classification preliminary election machine of the present utility model, the principle that while utilizing varigrained magnetic mineral to be caught by magnetic field, required magnetic force varies in size is carried out grading to material, not only make the operating efficiency of graded operation have greatly lifting, also make the Energy Intensity Reduction of processed in units amount arrive extremely low degree; Can throw tail to the wholegrain level strongly magnetic mineral of 0-50mm, magnetic mineral is carried out to effective grading, make concentrate and intergrowth by initial gross separation, thereby greatly simplified beneficiation flowsheet.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a magnetic force classification preliminary election machine, it is characterized in that: it comprises body, in described body, be provided with roller (3), in described roller (3), be provided with the magnetic system (2) that is arranged in tubular, described magnetic system (2) is with respect to roller (3) arranged off-centre, and described magnetic is to can be movable relatively between (2) and roller (3); The charging aperture (1) arranging on described body top extends roller (3) top obliquely; Magnetic system (2) below on described organism bottom is provided with mine tailing mouth (5), rough mouthful of (6) and fine iron ore hole (7) successively from strong magnetic area to weak magnetic area.
2. magnetic force classification preliminary election machine as claimed in claim 1, it is characterized in that: described in to state between magnetic system (2) and roller (3) eccentric throw adjustable, and the line of described magnetic system's (2) central point and roller (3) central point is ± 60 ° with respect to horizontal angle, in the magnetic field intensity that described magnetic system (2) produces, highfield district is greater than 3000Gs, and downfield district is less than 350Gs.
3. magnetic force classification preliminary election machine as claimed in claim 2, is characterized in that: between described magnetic system (2) and roller (3), can relatively rotate; The rotating speed of described magnetic system (2) and/or roller (3) is less than 500rpm.
4. the magnetic force classification preliminary election machine as described in one of claims 1 to 3, is characterized in that: described rough mouthful (6) and fine iron ore hole (7) can be one or more, and between two mine mouths of arbitrary neighborhood, are provided with the granularity adjustable plate (4) that can move horizontally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871304.6U CN203635320U (en) | 2013-12-27 | 2013-12-27 | Magnetic sorting pre-separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871304.6U CN203635320U (en) | 2013-12-27 | 2013-12-27 | Magnetic sorting pre-separator |
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| Publication Number | Publication Date |
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| CN203635320U true CN203635320U (en) | 2014-06-11 |
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| CN201320871304.6U Expired - Lifetime CN203635320U (en) | 2013-12-27 | 2013-12-27 | Magnetic sorting pre-separator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665129A (en) * | 2016-04-22 | 2016-06-15 | 成都利君科技有限责任公司 | Dry-type magnetic separator with multiple magnetic systems and permanent magnetic roller |
| CN105964400A (en) * | 2016-07-19 | 2016-09-28 | 湖北力帝机床股份有限公司 | Device for completing magnetic sorting and eddy-current sorting |
| CN110947496A (en) * | 2019-12-10 | 2020-04-03 | 成都利君实业股份有限公司 | Magnetic ore dry grinding and sorting system |
| CN113198614A (en) * | 2019-09-18 | 2021-08-03 | 安徽万磁电子有限公司 | Automatic screening plant of neodymium iron boron magnetic |
-
2013
- 2013-12-27 CN CN201320871304.6U patent/CN203635320U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665129A (en) * | 2016-04-22 | 2016-06-15 | 成都利君科技有限责任公司 | Dry-type magnetic separator with multiple magnetic systems and permanent magnetic roller |
| CN105964400A (en) * | 2016-07-19 | 2016-09-28 | 湖北力帝机床股份有限公司 | Device for completing magnetic sorting and eddy-current sorting |
| CN113198614A (en) * | 2019-09-18 | 2021-08-03 | 安徽万磁电子有限公司 | Automatic screening plant of neodymium iron boron magnetic |
| CN113198614B (en) * | 2019-09-18 | 2023-09-19 | 安徽万磁电子有限公司 | Automatic sieving mechanism of neodymium iron boron magnetic powder |
| CN110947496A (en) * | 2019-12-10 | 2020-04-03 | 成都利君实业股份有限公司 | Magnetic ore dry grinding and sorting system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20140611 |