CN203227560U - Dry magnetic separator of fluidized magnetic medium - Google Patents
Dry magnetic separator of fluidized magnetic medium Download PDFInfo
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- CN203227560U CN203227560U CN 201320179922 CN201320179922U CN203227560U CN 203227560 U CN203227560 U CN 203227560U CN 201320179922 CN201320179922 CN 201320179922 CN 201320179922 U CN201320179922 U CN 201320179922U CN 203227560 U CN203227560 U CN 203227560U
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Abstract
The utility model discloses a dry magnetic separator of a fluidized magnetic medium, belonging to the field of magnetic separators and magnetic separation of magnetite. The dry magnetic separator comprises a magnetic system, a rotating ring (or disc) with a magnetic medium box, a negative pressure feeding pipeline and gangue pipeline (namely a selecting region), a negative pressure wind scouring pipeline and middling pipeline (namely a scouring region) of dry separation concentrate, a negative pressure wind ore discharge pipeline (namely an ore discharge region) and a driving device. The magnetic system is arranged at the inner and outer sides of the rotating ring, and is long enough to comprise a feeding region and the scouring region. The dry magnetic separator of the fluidized magnetic medium disclosed by the utility model can be used for continuously treating dry magnetite at the granulometric class of -0.5mm.
Description
Technical field
The utility model belongs to magnetic separator and magnetic iron ore magnetic separation field thereof, relates in particular to the processed continuously magnetic iron ore dry-type magnetic extractor of fluidization at-0.5mm grade.
Background technology
The characteristics of China's iron ore are " poor, thin, assorted ", and the exploitation of present most of iron ore deposit is in the east China area, and in the traditional processing technology, iron ore dressing needs a large amount of waters, for wet type sorts.And the west area drought and water shortage has found that a large amount of iron ore deposits is difficult to effective development and use at present.
The main technique of iron ore beneficiation is the stage grinding stage grading.Grinding process in the dry production system solves at present substantially, and the dry type magnetic separation of-3+0.5mm grade is also realized substantially, influences principal contradiction that the dry method systematic large-scale uses at present at the fine fraction dry type magnetic separation of-0.5mm.
The utility model content
The purpose of this utility model is: provide a kind of magnetic iron ore dry-type magnetic extractor at-0.5mm grade, particulate product that can the whole grinding of the continuous handle high voltages roller mill of dry type fluidization.
The utility model purpose realizes by following technical proposals:
A kind of fluidization magnetizing mediums dry-type magnetic extractor, the main body that comprises magnetic separator, change or the rotating disk of magnetizing mediums box are housed, drive the transmission device of described change or rotating disk rotation, sort the district along what described change or dial rotation direction set gradually, wash away the district and unload the mining area, the described district that sorts comprises in order to give ore deposit and mine tailing pipeline for ore deposit and the negative-pressure air power of roughly selecting, and the magnetic system that is located at change or the inside and outside both sides of rotating disk, the described district of washing away comprises that the negative-pressure air power in order to the dry separation concentrate washes away pipeline and chats pipeline, and the magnetic system that is located at change or the inside and outside both sides of rotating disk, the described mining area of unloading comprises in order to unload the negative-pressure air power ore discharge pipeline in ore deposit.
As preferably, described sorting the district, wash away the district and unloading the mining area of setting gradually constitutes one and effectively sorts the district, wherein sorts the district and is at least one continuous setting, and described change or rotating disk are provided with at least one described district that effectively sorts.
As further preferred, described change or rotating disk are a plurality of, and stacked shares described transmission device, and each change or rotating disk are provided with at least one described district that effectively sorts respectively separately.
Preferred as another kind, the magnetic field that described magnetic is is permanent magnetic field.
Preferred as another kind, the magnetic field that described magnetic is is electromagnetism magnetic field, and is provided with cooling device.
Preferred as another kind, described change or rotating disk are horizontally disposed or be arranged vertically.
Use the magnetic selection method of aforementioned fluidization magnetizing mediums dry-type magnetic extractor, may further comprise the steps successively:
1) described change or rotating disk are by the transmission device driven rotary, preferred 4～20 r/min of adjustable rotating speed 30r/min(, more preferably below 8～12r/min), heavily fill out the described magnetizing mediums box in described change or rotating disk, rotate with described change or rotating disk, describedly sort the district and wash away the preferred 1200～2500Gs of 3000Gs(that the box of magnetizing mediums described in the district is produced by described magnetic system, the more preferably magnetization of the background magnetic field below 2000～2500Gs), in described magnetizing mediums box, produce the preferred 2100～3700Gs of 6000Gs(, the induced field below 4500～5000Gs) between the medium;
2) rotate forward with described change or rotating disk, described change or rotating disk rotate into the described district that sorts, give in ore deposit and the mine tailing pipeline at described negative-pressure air power, magnetic iron ore is at preferred 6～12 m/s of 2～30m/s(, more preferably enter described magnetizing mediums box under 8～10m/s) the wind speed, the band material concentration 0.5～3kg/m of wind
3(preferred 0.8～2 kg/m
3, more preferably 1.5～2kg/m3), described magnetizing mediums box is caught the magnetic material in the magnetic iron ore, does not have the material of magnetic to be taken away by wind, forms first mine tailing;
3) rotate forward with described change or rotating disk, described change or rotating disk rotate into the described district of washing away, wash away preferred 5～12 m/s of 2～30m/s(in pipeline and the chats pipeline at described negative-pressure air power, 15～20 m/s) under the washing away of the wind of wind speed, the gangue material that is mingled with by magnetic breaks away from described magnetizing mediums box, taken away by wind, form second mine tailing;
4) continue to rotate forward with described change or rotating disk, described change or rotating disk rotate into the described mining area of unloading, this moment, described magnetizing mediums box broke away from the field regions that described magnetic is, disappeared with induction magnetic field by the concentrate of described magnetizing mediums box absorption, concentrate is by preferred 6～8 m/s of 2～30m/s(of described negative-pressure air power ore discharge pipeline, 10～20 m/s) wind of wind speed is taken away, and so far finishes once effectively sorting.
As preferably, described change or rotary speed 4r/min, the background magnetic field field intensity of described magnetic system is 2000Gs, the induced field that produces between the medium in described magnetizing mediums box is 3500Gs ± 500Gs; The described described negative-pressure air power that sorts the district is 12m/s for ore deposit and mine tailing pipeline apoplexy speed, band material concentration 2kg/m
3The described described negative-pressure air power that washes away the district washes away that wind speed is 5m/s in pipeline and the chats pipeline; Wind speed is 8m/s in the described described negative-pressure air power ore discharge pipeline that unloads the mining area.
Preferred as another kind, described change or rotary speed 12r/min, the background magnetic field field intensity that described magnetic is is 2500Gs, the induced field that produces between the medium in described magnetizing mediums box is 3700Gs ± 400Gs; The described described negative-pressure air power that sorts the district is 9m/s for ore deposit and mine tailing pipeline apoplexy speed, band material concentration 1.5kg/m
3The described described negative-pressure air power that washes away the district washes away that wind speed is 12m/s in pipeline and the chats pipeline; Wind speed is 6m/s in the described described negative-pressure air power ore discharge pipeline that unloads the mining area.
Preferred as another kind, described change or rotary speed 20r/min, the background magnetic field field intensity that described magnetic is is 1200Gs, the induced field that produces between the medium in described magnetizing mediums box is 2100Gs ± 300Gs; The described described negative-pressure air power that sorts the district is 6m/s for ore deposit and mine tailing pipeline apoplexy speed, band material concentration 0.8kg/m
3The described described negative-pressure air power that washes away the district washes away that wind speed is 8m/s in pipeline and the chats pipeline; Wind speed is 7m/s in the described described negative-pressure air power ore discharge pipeline that unloads the mining area.
The beneficial effects of the utility model: at-0.5mm grade magnetic iron ore, whole system recoveries rate height, the concentrate grade height of sorting, magnetic is mingled with little, can directly obtain grade greater than 60% concentrate for the magnetic iron ore than coarse grain embedding cloth; Treating capacity is big, sorts the efficient height, especially at high pressure roller mill final grinding system product-the fine fraction magnetic iron ore of 0.5mm has good sorting result.
Description of drawings
Fig. 1 is the schematic top view of the utility model embodiment magnetic separator;
Fig. 2 is the schematic flow sheet of organizing work of the utility model embodiment magnetic separator;
Wherein 1, change, 2, the magnetizing mediums box, 3, negative-pressure air power gives ore deposit and mine tailing pipeline, 4, negative-pressure air power washes away pipeline and chats pipeline, 5, magnetic system, 6, negative-pressure air power ore discharge pipeline, 7, transmission device, 8, mine tailing 1,9, mine tailing 2,10, concentrate.
The specific embodiment
Following non-limiting examples is used for explanation the utility model.
Embodiment 1:
As shown in Figure 1, 2, frame of broken lines is one and sorts the unit among Fig. 1, and solid dot is represented magnetic material among Fig. 2, and hollow dots is represented non-magnetic material, and negative-pressure air power is given air intake+material in ore deposit and the mine tailing pipeline 3, formation mine tailing 1; Negative-pressure air power washes away air intake in pipeline and the chats pipeline 4, forms mine tailing 2; Air intake in the negative-pressure air power ore discharge pipeline 6 forms concentrate.A kind of fluidization magnetizing mediums dry-type magnetic extractor, the main body that comprises magnetic separator, change 1(or the rotating disk of magnetizing mediums box 2 are housed), drive change 1(or rotating disk) transmission device of rotation, along change 1(or rotating disk) rotation direction set gradually sort the district, wash away the district and unload the mining area, sorting the district, wash away the district and unloading one of mining area formation of setting gradually effectively sorts the district, wherein sort the district at least one continuous setting; sort the treating capacity that a plurality of continuous settings in district can improve system, change 1(or rotating disk) be provided with at least one and effectively sort the district.In order to improve the treating capacity of system, change 1(or rotating disk) can be for a plurality of, stacked common-transmission 7, each change 1(or rotating disk) be provided with at least one respectively separately and effectively sort the district.Change 1(or rotating disk) can be horizontally disposed or be arranged vertically.Sorting the district comprises in order to give ore deposit and mine tailing pipeline 3 for ore deposit and the negative-pressure air power of roughly selecting, and be located at change 1(or rotating disk) magnetic of inside and outside both sides is 5, wash away the district and comprise that the negative-pressure air power in order to the dry separation concentrate washes away pipeline and chats pipeline 4, and be located at change 1(or rotating disk) magnetic of inside and outside both sides is 5, unloads the mining area and comprises in order to unload the negative-pressure air power ore discharge pipeline 6 in ore deposit.As preferably, magnetic is that 5 magnetic field is permanent magnetic field, is electromagnetism magnetic field perhaps, and is provided with cooling device.
Use the magnetic selection method of aforementioned fluidization magnetizing mediums dry-type magnetic extractor, may further comprise the steps successively:
1) change 1(or rotating disk) by transmission device 7 driven rotary, below the adjustable rotating speed 30r/min, heavily fill out at change 1(or rotating disk) in magnetizing mediums box 2, with change 1(or rotating disk) rotation; sorting the district and washing away magnetizing mediums box 2 in the district is background magnetic field magnetization below 5 3000Gs that produce by magnetic, the induced field below the generation 6000Gs between the medium magnetizing mediums box 2 in;
2) with change 1(or rotating disk) rotate change 1(or rotating disk forward) rotate into and sort the district, to give in ore deposit and the mine tailing pipeline 3 at negative-pressure air power, magnetic iron ore enters magnetizing mediums box 2 under the wind speed of 2～30m/s, the band material concentration 0.5～3kg/m of wind
3, magnetizing mediums box 2 is caught the magnetic material in the magnetic iron ore, does not have the material of magnetic to be taken away by wind, forms first mine tailing;
3) with change 1(or rotating disk) rotate forward, change 1(or rotating disk) rotate into and wash away the district, wash away under the washing away of the wind of 2～30m/s wind speed in pipeline and the chats pipeline 4 at negative-pressure air power, the gangue material that is mingled with by magnetic breaks away from magnetizing mediums box 2, taken away by wind, form second mine tailing;
4) with change 1(or rotating disk) continue to rotate forward, change 1(or rotating disk) rotate into and unload the mining area, this moment magnetizing mediums box 2 to have broken away from magnetic be 5 field regions, disappeared with induction magnetic field by the concentrate of magnetizing mediums box 2 absorption, concentrate is taken away by the wind of 2～30m/s wind speed of negative-pressure air power ore discharge pipeline 6, so far finishes once effectively sorting.As previously mentioned, in order to improve the treating capacity of system, change 1(or rotating disk) can be for a plurality of, change 1(or rotating disk) on effectively sort the district also can be a plurality of, wherein sorting the district also can a plurality of continuous setting, once rotation will repeatedly effectively sort this moment.
Embodiment 2:
Somewhere, Shanxi magnetic iron ore, raw ore all iron content 15%, through the whole grinding preparation of high pressure roller mill-material of 0.4mm, feed dry-type magnetic extractor of the present utility model.
At band material concentration 2kg/m
3, feeding dry-type magnetic extractor of the present utility model by the mineral-feeding pipe road under the wind speed of 12m/s, the change rotating speed is 4r/min, the background field intensity is 2000Gs, and the induced field that magnetizing mediums produces is caught the magnetic-particle in the materials flow about 3500Gs, and obtain mine tailing 1 change and turn to and wash away the district, under the wind speed of 5m/s, the particle that magnetic is mingled with washes away, and obtains mine tailing 2, change is rotated further to no magnetic region, magnetic material breaks away from the magnetizing mediums box under the wind speed of 8m/, obtaining concentrate grade is 61%.Obtaining the final concentrate grade through wet magnetic separation is 65%.
Embodiment 3:
Somewhere, Inner Mongol magnetic iron ore, raw ore all iron content 15%, Armco magnetic iron content 8%, behind the whole grinding stage grinding staged magnetic separation of high pressure roller, granularity is-0.2mm that full iron grade is 45%, feeds dry-type magnetic extractor of the present utility model.
At band material concentration 1.5kg/m
3, feeding dry-type magnetic extractor of the present utility model by the mineral-feeding pipe road under the wind speed of 9m/s, the change rotating speed is 12r/min, the background field intensity is 2500Gs, and the induced field that magnetizing mediums produces is caught the magnetic-particle in the materials flow about 3700Gs, and obtain mine tailing 1 change and turn to and wash away the district, under the wind speed of 12m/s, the particle that magnetic is mingled with washes away, and obtains mine tailing 2, change is rotated further to no magnetic region, magnetic material breaks away from the magnetizing mediums box under the wind speed of 6m/, obtaining concentrate grade is 63%.The final concentrate grade that obtains through wet magnetic separation is 68%.
Embodiment 4:
Somewhere, Xinjiang magnetic iron ore, raw ore all iron content 31%, Armco magnetic iron content 23%, behind the whole grinding stage grinding staged magnetic separation of high pressure roller, granularity is-0.15mm that full iron grade is 49%, feeds dry-type magnetic extractor of the present utility model.
At band material concentration 0.8kg/m
3, feeding dry-type magnetic extractor of the present utility model by the mineral-feeding pipe road under the wind speed of 6m/s, the change rotating speed is 20r/min, the background field intensity is 1200Gs, and the induced field that magnetizing mediums produces is caught the magnetic-particle in the materials flow about 2100Gs, and obtain mine tailing 1 change and turn to and wash away the district, under the wind speed of 8m/s, the particle that magnetic is mingled with washes away, and obtains mine tailing 2, change is rotated further to no magnetic region, magnetic material breaks away from the magnetizing mediums box under the wind speed of 7m/, obtaining concentrate grade is 60%.The final concentrate grade that obtains through wet magnetic separation is 63%.
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 (6)
1. fluidization magnetizing mediums dry-type magnetic extractor, it is characterized in that: the main body that comprises magnetic separator, change or the rotating disk of magnetizing mediums box are housed, drive the transmission device of described change or rotating disk rotation, sort the district along what described change or dial rotation direction set gradually, wash away the district and unload the mining area, the described district that sorts comprises in order to give ore deposit and mine tailing pipeline for ore deposit and the negative-pressure air power of roughly selecting, and the magnetic system that is located at change or the inside and outside both sides of rotating disk, the described district of washing away comprises that the negative-pressure air power in order to the dry separation concentrate washes away pipeline and chats pipeline, and the magnetic system that is located at change or the inside and outside both sides of rotating disk, the described mining area of unloading comprises in order to unload the negative-pressure air power ore discharge pipeline in ore deposit.
2. fluidization magnetizing mediums dry-type magnetic extractor as claimed in claim 1, it is characterized in that: described sorting the district, wash away the district and unloading one of mining area formation of setting gradually effectively sorts the district, wherein sort the district and be at least one continuous setting, described change or rotating disk are provided with at least one described district that effectively sorts.
3. fluidization magnetizing mediums dry-type magnetic extractor as claimed in claim 2, it is characterized in that: described change or rotating disk are a plurality of, and stacked shares described transmission device, and each change or rotating disk are provided with at least one described district that effectively sorts respectively separately.
4. fluidization magnetizing mediums dry-type magnetic extractor as claimed in claim 1 is characterized in that: the magnetic field of described magnetic system is permanent magnetic field.
5. fluidization magnetizing mediums dry-type magnetic extractor as claimed in claim 1 is characterized in that: the magnetic field of described magnetic system is electromagnetism magnetic field, and is provided with cooling device.
6. fluidization magnetizing mediums dry-type magnetic extractor as claimed in claim 1 is characterized in that: described change or rotating disk are horizontally disposed or be arranged vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320179922 CN203227560U (en) | 2013-04-11 | 2013-04-11 | Dry magnetic separator of fluidized magnetic medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320179922 CN203227560U (en) | 2013-04-11 | 2013-04-11 | Dry magnetic separator of fluidized magnetic medium |
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| CN203227560U true CN203227560U (en) | 2013-10-09 |
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| CN 201320179922 Withdrawn - After Issue CN203227560U (en) | 2013-04-11 | 2013-04-11 | Dry magnetic separator of fluidized magnetic medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191830A (en) * | 2013-04-11 | 2013-07-10 | 成都利君实业股份有限公司 | Fluidized magnetic medium dry magnetic separator and magnetic separation method thereof |
-
2013
- 2013-04-11 CN CN 201320179922 patent/CN203227560U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191830A (en) * | 2013-04-11 | 2013-07-10 | 成都利君实业股份有限公司 | Fluidized magnetic medium dry magnetic separator and magnetic separation method thereof |
| CN103191830B (en) * | 2013-04-11 | 2016-02-03 | 成都利君实业股份有限公司 | A kind of fluidization magnetizing mediums dry-type magnetic extractor and magnetic selection method thereof |
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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: 20131009 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |