CN105057098A - Permanent magnetic separation column suitable for strongly or weakly magnetic minerals - Google Patents
Permanent magnetic separation column suitable for strongly or weakly magnetic minerals Download PDFInfo
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- CN105057098A CN105057098A CN201510491246.8A CN201510491246A CN105057098A CN 105057098 A CN105057098 A CN 105057098A CN 201510491246 A CN201510491246 A CN 201510491246A CN 105057098 A CN105057098 A CN 105057098A
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Abstract
The invention belongs to the field of magnetic separation columns and particularly relates to a permanent magnetic separation column suitable for strongly or weakly magnetic minerals. Permanent magnetic systems are adopted, the magnetic field intensity can be adjusted within 1,600-16,000 Gs, and an inner permanent magnetic field mechanism and an outer permanent magnetic field mechanism which are in spiral distribution and movement are arranged simultaneously meet the requirement for production of big or small magnetic separation columns; fed water and minerals in a mineral separation chamber conduct inversely spiral upward movements to separate concentrate from tailing more radically, so that the concentrate grade is further improved; concentrate particles conduct obliquely downward slow movement under dual actions of the magnetic field and the dead weight, so that the tailing missing amount is reduced; and the permanent magnetic separation column is simple in structure, stable and reliable, low in water consumption, high in equipment output, and is simultaneously suitable for separation of such strongly-magnetic minerals as magnetite and such weakly-magnetic minerals as hematite, limonite and siderite.
Description
Technical field
The invention belongs to column magnetic separator field, particularly relate to a kind of permanent-magnet concentration post being applicable to ferromagnetism mineral or weakly magnetic mineral kind.
Background technology
China belongs to Di Pin refractory iron ore resource-rich country, and low poor refractory iron ore accounts for more than 97% of iron ore deposit, mostly belongs to the difficult ore dressing kind of weak magnetic.In recent years, easily select iron ore deposit fewer and feweri, therefore, people require more and more higher to the high-performance enrichment preparation equipment of weak magnetic refractory iron ore.In order to reduce the gangue content in enriched iron breeze further, market there is the selected preparation equipment of column magnetic separator.
But the column magnetic separator on market is mostly electromagnetic type column magnetic separator, there is magnetic field intensity and be separated the drawbacks such as poor, apparatus failure is more, fluctuation of service, water consumption large, race tail amount is large compared with weak, magnetic coagulation, be applied to the strong magnetic mineral such as magnetic iron ore, the grade that concentrate improves is limited, and is not suitable for the selected of the weak magnetic refractory iron ore mineral such as bloodstone, limonite, siderite.
There is the problems such as apparatus failure is more, fluctuation of service due to electromagnetic type column magnetic separator, occurred permanent-magnet concentration post, but existing permanent-magnet concentration column device also exists complex structure, magnetic coagulation is separated the defects such as poor, water consumption large, race tail amount is large, single device production capacity is low thereupon.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, provide a kind of structure simple, stable and run tail amount little be both applicable to ferromagnetism mineral, be also applicable to the permanent-magnet concentration post of weakly magnetic mineral kind.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of permanent-magnet concentration post being applicable to ferromagnetism mineral or weakly magnetic mineral kind, comprise the cylindrical shell that top is uncovered, the spill box being arranged on cylindrical shell top and the concentrate bucket being arranged on cylinder body bottom, its special character is, the middle part of described spill box diapire is passed on the top of described cylindrical shell, the diapire of described spill box offers mine tailing outlet, the diapire of described cylindrical shell offers the concentrate small opening for being communicated with described concentrate bucket, the bottom of described concentrate bucket offers concentrate outlet, described concentrate outlet is provided with revolving plow reclaimer, described cylindrical shell internal fixtion is provided with the central rotating shaft along wherein axis direction extension and the top of described central rotating shaft is fixed on the roof of described spill box, at described central rotating shaft outer wall, there is the center permanent magnetic system distributed in the shape of a spiral along its axis direction cover, central cylinder is arranged with outside the permanent magnetic system of described center, in described cylindrical shell, described central cylinder forms ore dressing chamber outward, and described central rotating shaft top is provided with the first motor having driven and rotated, the bottom of described cylindrical shell is set with annular water tank, and described annular water tank offers outer water inlet, on the barrel of described cylindrical shell spacer ring be provided with multiple be communicated with annular water tank in water inlet, the middle and lower part of described cylindrical shell is set with annular and enters ore deposit case, and described annular is entered on the case of ore deposit to offer outer iron ore feeding hole, on the barrel of described cylindrical shell spacer ring be provided with multiple enter with annular ore deposit case be communicated with in iron ore feeding hole.
The invention has the beneficial effects as follows: apparatus of the present invention adopt permanent magnetic system, magnetic field intensity can adjust within the scope of 1600Gs ~ 16000Gs, and by arranging the permanent magnetic field mechanism that inside and outside two overlap distribute motion in the shape of a spiral, meet the column magnetic separator demand that production scale is large or little simultaneously; Ore dressing chamber indoor water-supply and be backpitch shape upstroke to ore deposit, is separated concentrate more thoroughly with mine tailing, improves concentrate grade further; Concentrate particle, under the double action of magnetic field and own wt, does and slowly runs obliquely, and it is few to run tail amount; Structure of the present invention is simple, reliable and stable, water consumption is few, equipment capacity is large, and is applicable to the selected of the weakly magnetic mineral kinds such as ferromagnetism mineral or magnetic iron ore, limonite, siderite such as magnetic iron ore simultaneously.
On the basis of technique scheme, the present invention can also do following improvement.
Further, outer cylinder body is arranged with outside described cylindrical shell, revolving support mechanism is provided with bottom described outer cylinder body, described revolving support mechanism is fixed on described cylinder body outer wall by bearing, the outside rotating cylinder driven by gear ring and gearing by the second motor is provided with in described outer cylinder body, be provided with the outside permanent magnetic system distributed in the shape of a spiral in described outside rotating cylinder, described outside permanent magnetic system is consistent with the magnetic direction of described center permanent magnetic system.
Adopt the beneficial effect of above-mentioned further scheme to be that, if ore dressing is larger, the spacing of ore dressing chamber just must strengthen, the magnetic field distance of central cylinder just seems relatively little.At the outside permanent magnetic system that the increase of ore dressing exterior thereto distributes in the shape of a spiral, its magnetic direction is consistent with the magnetic direction (N pole and S pole) of center permanent magnetic system, gear ring and gear coordinate, make the outside drum rotation of the second driven by motor, can make to be full of global magnetic field in ore dressing chamber, iron ore concentrate is wherein spinned towing, the slowly oblique downward movement of shape, thus realizes selected object.
Further, described interior iron ore feeding hole and interior water inlet are tangential entry, and utilize iron ore feeding hole and interior water inlet in each in cylindrical shell, form ore pulp eddy flow and bath eddy flow respectively, and the rotation direction of above-mentioned two eddy flows is contrary.
The beneficial effect of above-mentioned further scheme is adopted to be, enter ore dressing water and the ore pulp of ore dressing chamber, under certain pressure effect, water and ore pulp do upstroke all in the shape of a spiral, but the two rotation direction is contrary, water is easy to break up ore pulp, washes away, rinses each ferric oxide particles in breeze, and along with upwards float, guarantee the washing away of concentrate and gangue, rinse be separated more thorough, thus make mine tailing under the effect of up current, overflow from cylinder top, discharge from mine tailing outlet.
Further, described first motor and the second Electric Machine Control rotating speed are 1.0 ~ 3.0r/min.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
Fig. 3 is A-A place sectional view in Fig. 2;
Fig. 4 is B-B place sectional view in Fig. 2;
Fig. 5 is C-C place sectional view in Fig. 2;
Fig. 6 is E place enlarged diagram in Fig. 2;
In figure, 1, cylindrical shell; 2, spill box; 3, concentrate bucket; 4, mine tailing outlet; 5, concentrate small opening; 6, concentrate outlet; 7, revolving plow reclaimer; 8, central rotating shaft; 9, center permanent magnetic system; 10, central cylinder; 11, ore dressing chamber; 12, the first motor; 13, annular water tank; 14, outer water inlet; 15, interior water inlet; 16, annular enters ore deposit case; 17, outer iron ore feeding hole; 18, interior iron ore feeding hole; 19, outer cylinder body; 20, outside rotating cylinder; 21, outside permanent magnetic system; 22, gear ring; 23, gear; 24, revolving support mechanism; 25, bearing; 26, the second motor.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with example, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
A kind of permanent-magnet concentration post being applicable to ferromagnetism mineral or weakly magnetic mineral kind, the concentrate bucket 3 comprising the uncovered cylindrical shell in top 1, be arranged on the spill box 2 at cylindrical shell 1 top and be arranged on bottom cylindrical shell 1, its special character is, the middle part of described spill box 2 diapire is passed on the top of described cylindrical shell 1, the diapire of described spill box 2 offers mine tailing outlet 4, the diapire of described cylindrical shell 1 offers the concentrate small opening 5 for being communicated with described concentrate bucket 3, the bottom of described concentrate bucket 3 offers concentrate outlet 6, and described concentrate outlet 6 is provided with revolving plow reclaimer 7; Described cylindrical shell 1 internal fixtion is provided with the central rotating shaft 8 along wherein axis direction extension and the top of described central rotating shaft 8 is fixed on the roof of described spill box 2, at described central rotating shaft 8 outer wall, there is the center permanent magnetic system 9 distributed in the shape of a spiral along its axis direction cover, central cylinder 10 is arranged with outside described center permanent magnetic system 9, in described cylindrical shell 1, outside described central cylinder 10, form ore dressing chamber 11, described central rotating shaft 8 top is provided with the first motor 12 having driven and rotated; The bottom of described cylindrical shell 1 is set with annular water tank 13, and described annular water tank 13 offers outer water inlet 14, on the barrel of described cylindrical shell 1 spacer ring be provided with multiple be communicated with annular water tank 13 in water inlet 15; The middle and lower part of described cylindrical shell 1 is set with annular and enters ore deposit case 16, and described annular is entered on ore deposit case 16 to offer outer iron ore feeding hole 17, on the barrel of described cylindrical shell 1 spacer ring be provided with multiple enter with annular ore deposit case 16 be communicated with in iron ore feeding hole 18.
Be the Inner Mongol magnetite powder of 200 ~ 325 orders, grade TFe:64.2% by fineness, adopt this device column magnetic separator of ￠ 600mm to carry out enrichment again selected, suck hydraulic pressure pressure≤0.8MPa, flow is 11.6m
3/ h, feed ore concentration 30%, column magnetic separator magnetic field intensity is 3000 ~ 3200Gs, and the rotating speed of center permanent magnetic system is 2.2r/min, through primary cleaning, obtains the fine ore of grade TFe:67.8%, tailings grade TFe:0.82%.
Embodiment 2
A kind of permanent-magnet concentration post being applicable to ferromagnetism mineral or weakly magnetic mineral kind, the concentrate bucket 3 comprising the uncovered cylindrical shell in top 1, be arranged on the spill box 2 at cylindrical shell 1 top and be arranged on bottom cylindrical shell 1, its special character is, the middle part of described spill box 2 diapire is passed on the top of described cylindrical shell 1, the diapire of described spill box 2 offers mine tailing outlet 4, the diapire of described cylindrical shell 1 offers the concentrate small opening 5 for being communicated with described concentrate bucket 3, the bottom of described concentrate bucket 3 offers concentrate outlet 6, and described concentrate outlet 6 is provided with revolving plow reclaimer 7; Described cylindrical shell 1 internal fixtion is provided with the central rotating shaft 8 along wherein axis direction extension and the top of described central rotating shaft 8 is fixed on the roof of described spill box 2, at described central rotating shaft 8 outer wall, there is the center permanent magnetic system 9 distributed in the shape of a spiral along its axis direction cover, central cylinder 10 is arranged with outside described center permanent magnetic system 9, in described cylindrical shell 1, outside described central cylinder 10, form ore dressing chamber 11, described central rotating shaft 8 top is provided with the first motor 12 having driven and rotated; The bottom of described cylindrical shell 1 is set with annular water tank 13, and described annular water tank 13 offers outer water inlet 14, on the barrel of described cylindrical shell 1 spacer ring be provided with multiple be communicated with annular water tank 13 in water inlet 15; The middle and lower part of described cylindrical shell 1 is set with annular and enters ore deposit case 16, and described annular is entered on ore deposit case 16 to offer outer iron ore feeding hole 17, on the barrel of described cylindrical shell 1 spacer ring be provided with multiple enter with annular ore deposit case 16 be communicated with in iron ore feeding hole 18.
Outer cylinder body 19 is arranged with outside described cylindrical shell 1, revolving support mechanism 24 is provided with bottom described outer cylinder body 19, described revolving support mechanism 24 is fixed on described cylindrical shell 1 outer wall by bearing 25, the outside rotating cylinder 20 being acted on driving by the second motor 26 by gear ring 22 and gear 23 is provided with in described outer cylinder body 19, be provided with the outside permanent magnetic system 21 distributed in the shape of a spiral in described outside rotating cylinder 20, described outside permanent magnetic system 21 is consistent with the magnetic direction of described center permanent magnetic system 9.
Adopt fineness-160 order to account for 80%, the Chaoyang magnetite powder of grade TFe=66.24%, be polished into-200 orders and account for 100%, adopt this device column magnetic separator of ￠ 600mm to carry out enrichment again, suck hydraulic pressure pressure≤0.8MPa, flow is 11.6m
3/ h, feed ore concentration 35%, column magnetic separator magnetic field intensity is 2800 ~ 3000Gs, the rotating speed of center permanent magnetic system is 2.0r/min, and the rotating speed of outside permanent magnetic system is 1.0r/min, through primary cleaning, obtain the fine ore of grade TFe:68.89%, tailings grade TFe:0.22%.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. one kind is applicable to the permanent-magnet concentration post of ferromagnetism mineral or weakly magnetic mineral kind, comprise the uncovered cylindrical shell in top, be arranged on the spill box at cylindrical shell top and be arranged on the concentrate bucket of cylinder body bottom, it is characterized in that, the middle part of described spill box diapire is passed on the top of described cylindrical shell, the diapire of described spill box offers mine tailing outlet, the diapire of described cylindrical shell offers the concentrate small opening for being communicated with described concentrate bucket, the bottom of described concentrate bucket offers concentrate outlet, and described concentrate outlet is provided with revolving plow reclaimer; Described cylindrical shell internal fixtion is provided with the central rotating shaft along wherein axis direction extension and the top of described central rotating shaft is fixed on the roof of described spill box, at described central rotating shaft outer wall, there is the center permanent magnetic system distributed in the shape of a spiral along its axis direction cover, central cylinder is arranged with outside the permanent magnetic system of described center, in described cylindrical shell, described central cylinder forms ore dressing chamber outward, and described central rotating shaft top is provided with the first motor having driven and rotated; The bottom of described cylindrical shell is set with annular water tank, and described annular water tank offers outer water inlet, on the barrel of described cylindrical shell spacer ring be provided with multiple be communicated with annular water tank in water inlet; The middle and lower part of described cylindrical shell is set with annular and enters ore deposit case, and described annular is entered on the case of ore deposit to offer outer iron ore feeding hole, on the barrel of described cylindrical shell spacer ring be provided with multiple enter with annular ore deposit case be communicated with in iron ore feeding hole.
2. permanent-magnet concentration post according to claim 1, it is characterized in that, outer cylinder body is arranged with outside described cylindrical shell, revolving support mechanism is provided with bottom described outer cylinder body, described revolving support mechanism is fixed on described cylinder body outer wall by bearing, be provided with the outside rotating cylinder driven by gear ring and gearing by the second motor in described outer cylinder body, be provided with the outside permanent magnetic system distributed in the shape of a spiral in described outside rotating cylinder, described outside permanent magnetic system is consistent with the magnetic direction of described center permanent magnetic system.
3. permanent-magnet concentration post according to claim 1 and 2, it is characterized in that, described interior iron ore feeding hole and interior water inlet are tangential entry, and utilize iron ore feeding hole and interior water inlet in each in cylindrical shell, form ore pulp eddy flow and bath eddy flow respectively, and the rotation direction of above-mentioned two eddy flows is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510491246.8A CN105057098A (en) | 2015-08-12 | 2015-08-12 | Permanent magnetic separation column suitable for strongly or weakly magnetic minerals |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510491246.8A CN105057098A (en) | 2015-08-12 | 2015-08-12 | Permanent magnetic separation column suitable for strongly or weakly magnetic minerals |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689129A (en) * | 2016-04-28 | 2016-06-22 | 江苏凯达石英有限公司 | Quartz sand magnetic separation device |
| CN105935626A (en) * | 2016-07-12 | 2016-09-14 | 陈勇 | In-water magnetite ultrahigh magnetic ore-dressing device with artificial intelligence |
| CN106000632A (en) * | 2016-07-12 | 2016-10-12 | 陈勇 | Rotating flow tank type mineral separation device with underwater ore sand falling control switch added |
| CN106000631A (en) * | 2016-07-12 | 2016-10-12 | 陈勇 | Underwater magnetite tank type mineral separation device with reserved large-particle ore capacity of one pouring bin added |
| CN106076615A (en) * | 2016-07-12 | 2016-11-09 | 陈勇 | Magnetic iron ore superelevation magnetic concentration device in a kind of water increasing artificial intelligence |
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| CN2213571Y (en) * | 1994-12-22 | 1995-11-29 | 开封磁性材料厂 | Dry Type fines magnetic separator |
| CA2362796A1 (en) * | 1999-02-17 | 2000-08-24 | De Beers Consolidated Mines Limited | Ferrohydrostatic separation method |
| RU2170621C1 (en) * | 2000-06-26 | 2001-07-20 | Северо-Кавказский государственный технологический университет | Magnetohydrostatic centrifugal separator |
| CN2649181Y (en) * | 2003-07-22 | 2004-10-20 | 田中全 | Efficient magnetic dehydration tank |
| CN2836920Y (en) * | 2005-11-11 | 2006-11-15 | 李日善 | Intelligence helical magnetic field magnetic separation post |
| CN103286002A (en) * | 2013-06-18 | 2013-09-11 | 长沙矿冶研究院有限责任公司 | Permanent-magnetic spiral elutriation machine |
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| US20140305875A1 (en) * | 2009-07-23 | 2014-10-16 | National Oilwell Varco, L.P. | Apparatus and method for drilling fluid density separator using magnets |
| CN104355372A (en) * | 2014-10-27 | 2015-02-18 | 福州品行科技发展有限公司 | Fluid gyromagnetic magnetizing device |
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Patent Citations (9)
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| CN2213571Y (en) * | 1994-12-22 | 1995-11-29 | 开封磁性材料厂 | Dry Type fines magnetic separator |
| CA2362796A1 (en) * | 1999-02-17 | 2000-08-24 | De Beers Consolidated Mines Limited | Ferrohydrostatic separation method |
| RU2170621C1 (en) * | 2000-06-26 | 2001-07-20 | Северо-Кавказский государственный технологический университет | Magnetohydrostatic centrifugal separator |
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| US20140305875A1 (en) * | 2009-07-23 | 2014-10-16 | National Oilwell Varco, L.P. | Apparatus and method for drilling fluid density separator using magnets |
| CN103286002A (en) * | 2013-06-18 | 2013-09-11 | 长沙矿冶研究院有限责任公司 | Permanent-magnetic spiral elutriation machine |
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| CN104355372A (en) * | 2014-10-27 | 2015-02-18 | 福州品行科技发展有限公司 | Fluid gyromagnetic magnetizing device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689129A (en) * | 2016-04-28 | 2016-06-22 | 江苏凯达石英有限公司 | Quartz sand magnetic separation device |
| CN105935626A (en) * | 2016-07-12 | 2016-09-14 | 陈勇 | In-water magnetite ultrahigh magnetic ore-dressing device with artificial intelligence |
| CN106000632A (en) * | 2016-07-12 | 2016-10-12 | 陈勇 | Rotating flow tank type mineral separation device with underwater ore sand falling control switch added |
| CN106000631A (en) * | 2016-07-12 | 2016-10-12 | 陈勇 | Underwater magnetite tank type mineral separation device with reserved large-particle ore capacity of one pouring bin added |
| CN106076615A (en) * | 2016-07-12 | 2016-11-09 | 陈勇 | Magnetic iron ore superelevation magnetic concentration device in a kind of water increasing artificial intelligence |
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Application publication date: 20151118 |
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