CN104353547A - Feeding device of dry magnetic separator - Google Patents
Feeding device of dry magnetic separator Download PDFInfo
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- CN104353547A CN104353547A CN201410624237.7A CN201410624237A CN104353547A CN 104353547 A CN104353547 A CN 104353547A CN 201410624237 A CN201410624237 A CN 201410624237A CN 104353547 A CN104353547 A CN 104353547A
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- permeable plate
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- air permeable
- dry
- air chamber
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Abstract
The invention discloses a feeding device of a dry magnetic separator, belonging to the field of magnetic material separation equipment. The feeding device of the dry magnetic separator comprises an air chamber arranged on a shell; a breathable plate is arranged above the air chamber, and is arranged on the upper surface of the shell in an inclined way, so that a working surface is formed; the high end of the breathable plate is provided with a feeding hole, and the low end of the breathable plate is provided with an air suction hole communicated with the air chamber; the shell is provided with a vibration device and an air inlet communicated with the air chamber. According to the feeding device of the dry magnetic separator, material is highly dispersed, so that the magnetic material is more easily sorted; the fluidity of airflow in the sorting space is guaranteed, so that the material is prevented from stacking; the angle of inclination of equipment can be flexibly adjusted according to the particle sizes of the material, so that the feeding device is wide in application scope.
Description
Technical field
The present invention relates to magnetic material screening installation field, be particularly useful for the dry-type magnetic extractor of fine fraction magnetic material sorting.
Background technology
In recent years, along with the development of grinding technology, the high-pressure roller mill based on bed-grinding principle has been widely used in ore grinding field, achieves obvious Increasing Production and Energy Saving effect.Because the mineral after high-pressure roller mill roll-in produce a large amount of micro-crack, possess the separation condition of " dry separation is dry throws " after abundant scattering and grading, effectively can reduce the treating capacity of subsequent technique, thus obtain in ore dressing field and develop faster.But the material after high-pressure roller mill process often forms material cake, there is the phenomenon that material dispersion is not opened, clustering phenomena is more serious, the sorting result for follow-up dry-type magnetic extractor also exists larger impact.Meanwhile, because the raw meal particle size after high-pressure roller mill roll-in is less than 3mm usually, gangue particle is easily mingled with wherein by magnetic material parcel, affects greatly the precision that sorts of follow-up dry-type magnetic extractor.
And the pay-off of conventional dry magnetic separator adopts belt, disk, vibration feeder, fluid bed etc. usually, cannot ensure the uniformity of feeding, the disk pack that more cannot solve material wraps up in problem, thus has influence on the sorting result of dry-type magnetic extractor.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, a kind of pay-off of dry-type magnetic extractor is provided, its working face is in tilted layout and is provided with vibrating device on housing, the material dropped on air permeable plate moves from high-end to low side under gravity and effect of vibration, because of air chamber cut-in pressure gas and from the ejection of air permeable plate surface, material is in fluidization under gas jet impact, and the magnetic coagulation between magnetic material is broken up, and its magnetic system above air permeable plate is easily sorted.Be provided with in the middle of the air permeable plate edge higher than its surface and with the guiding gutter that air chamber is isolated, flowed to air permeable plate low side by guiding gutter under suction opeing draft effect by the air-flow that magnetic system stops, ensure that the mobility of material; Solve due to the limited space between air permeable plate and magnetic system, the air-flow of air permeable plate mid portion ejection is subject to the stop of magnetic system and above material, forms malleation, and the material fluidity in the middle of air permeable plate reduces and affects the technical problem of the sorting result of equipment.
The technical solution used in the present invention is as follows:
The pay-off of dry-type magnetic extractor of the present invention, comprises the air chamber be located on housing, above described air chamber, be provided with air permeable plate, and described air permeable plate is in tilted layout in the upper surface formation working face of housing; The high-end of described air permeable plate is provided with charging aperture, and the low side of described air permeable plate is provided with the suction opeing be communicated with air chamber; Described housing is provided with vibrating device and is communicated with the air inlet of air chamber.
Owing to have employed said structure, the working face wherein formed by air permeable plate can coordinate with the magnetic system of dry-type magnetic extractor, and material is sent to magnetic system working range.When material from charging aperture fall air permeable plate high-end time, move down along the gradient under gravity and constantly overturn under the effect of vibrating device, agglomerating material is broken up, and height of materials scatter.Air permeable plate both sides are provided with baffle plate, ensure that material can not overflow and force material to glide along the air permeable plate gradient.Meanwhile, the pressed gas accessed from the air inlet of air chamber sprays from air permeable plate surface, and material is kicked up from air permeable plate surface under gas jet impact, and magnetic coagulation is broken up under wind-force effect, thus material can fully be sorted out through magnetic system.Because air permeable plate is rigid material, distortion can not be produced because gas impacts, the validity sorting space can be ensured.
The pay-off of dry-type magnetic extractor of the present invention, the centre of described air permeable plate is provided with the guiding gutter isolated with air chamber, and the edge of described guiding gutter is higher than the surface of air permeable plate; Or the baffle plate that described guiding gutter edge is arranged is higher than the surface of air permeable plate.
Owing to have employed said structure, for ensureing the sorting result of equipment, distance between air permeable plate and magnetic system is specific, namely the limited space between air permeable plate and magnetic system, the air-flow of air permeable plate mid portion ejection is not easy sorting in space flowing and produce downward power because of the obstruction of magnetic system, namely form malleation above the material that air-flow sorts in space at this, the mobility of material significantly reduces, and material may be caused to pile up at this and have influence on the sorting result of equipment.For this reason, as shown in Figure 3, the present invention sets up the guiding gutter of isolating with air chamber at air permeable plate mid portion, this air-flow sorted in space flows from guiding gutter lower end to suction opeing under air exhauster effect, thus make this sort in space to keep negative pressure or tiny structure above material, ensure that the mobility of material.Blocking is caused in order to not make material fall into guiding gutter inside, guiding gutter edge is higher than air permeable plate surface certain distance, the mobility of air-flow in guiding gutter can be ensured, because guiding gutter edge is higher than air permeable plate surface, can ensure that material can not be piled up because guiding gutter edge stops.
The pay-off of dry-type magnetic extractor of the present invention, described guiding gutter is front end near the high-end place of air permeable plate, and the front end of described guiding gutter is taper or arc.
Owing to have employed said structure, be arranged to taper or arc in guiding gutter upper end, thus material can be moved down along guiding gutter edge, ensure that the mobility of material.
The pay-off of dry-type magnetic extractor of the present invention, described air permeable plate is provided with some single holes, and wherein the diameter of single hole is 0.5 ~ 200 μm; Percent opening > 1% wherein on air permeable plate, air permeance resistance is 200Pa ~ 3000Pa.
Owing to have employed said structure, can guarantee that the pressed gas sprayed from this single hole meets the demands, material is kicked up from air permeable plate surface under gas jet impact, and magnetic coagulation is broken up under wind-force effect, thus material can fully be sorted out through magnetic system.
The pay-off of dry-type magnetic extractor of the present invention, the bottom of described housing is provided with inclination-angle regulating device, and described inclination-angle regulating device is located at the high-end side of air permeable plate.
Owing to have employed said structure, because mineral granularity is different, its translational speed on air permeable plate surface is also different, for controlling the translational speed of material, the present invention arranges inclination-angle regulating device to regulate the gradient of air permeable plate bottom air chamber, thus ensure that the translational speed of material meets equipment sort demand.
The pay-off of dry-type magnetic extractor of the present invention, described air chamber as a whole formula air chamber or be made up of mutually isolated multiple air chambers.
Owing to have employed said structure, can select size or the number of air chamber according to actual needs, with the demand under satisfied different operating mode, its scope of application is extremely wide.
The pay-off of dry-type magnetic extractor of the present invention, the gas pressure >=0.4MPa of described air inlet access.
Owing to have employed said structure, only the guaranteed gas pressure in access air inlet reaches more than 0.4MPa, when just can make pressed gas from the ejection of air permeable plate surface, material is kicked up from air permeable plate surface under gas jet impact (if pressure is too small, cannot kick up), magnetic coagulation is broken up under wind-force effect, thus material can fully be sorted out through magnetic system.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the pay-off of dry-type magnetic extractor of the present invention, working face is in tilted layout and is provided with vibrating device on housing, the material dropped on air permeable plate moves from high-end to low side under gravity and effect of vibration, because of air chamber cut-in pressure gas and from the ejection of air permeable plate surface, material is fluidization under gas jet impact, magnetic coagulation between magnetic material is broken up, and its magnetic system above air permeable plate is easily sorted.
2, the pay-off of dry-type magnetic extractor of the present invention, be provided with the guiding gutter that edge isolates higher than its surface and with air chamber in the middle of the air permeable plate, flowed to air permeable plate low side by guiding gutter under suction opeing draft effect by the air-flow that magnetic system stops, ensure that the mobility of material; Solve due to the limited space between air permeable plate and magnetic system, the air-flow of air permeable plate mid portion ejection is subject to the stop of magnetic system and above material, forms malleation, and the material fluidity in the middle of air permeable plate reduces and affects the technical problem of the sorting result of equipment.
3, the pay-off of dry-type magnetic extractor of the present invention, achieves the high degree of dispersion of material, and magnetic material is more easily sorted; Ensure that air-flow is sorting the mobility in space, thus avoid the accumulation of material; The inclination angle of equipment can be adjusted flexibly, wide accommodation according to raw meal particle size.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is that the pay-off of dry-type magnetic extractor in the present invention is always schemed;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the top view of Fig. 1.
Mark in figure: 1-air chamber, 2-air permeable plate, 3-charging aperture, 4-air inlet, 5-vibrating device, 6-guiding gutter, 7-baffle plate, 8-suction opeing, 9-inclination-angle regulating device.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
As shown in Figure 1 to Figure 3, the pay-off of dry-type magnetic extractor of the present invention, comprise the air chamber 1 be located on housing, air permeable plate 2 is provided with above described air chamber 1, described air permeable plate 2 is provided with some single holes, and wherein the diameter of single hole is minimum is 0.5 μm, is 200 μm to the maximum, can select in 0.5 ~ 200 μm, as 50 μm, 100 μm etc.; Percent opening > 1% wherein on air permeable plate 2, air permeance resistance is minimum is 200Pa, is 3000Pa to the maximum, can selects in 200Pa ~ 3000Pa, as 500 Pa, 1000 Pa, 2000 Pa etc.; Described air permeable plate 2 is in tilted layout in the upper surface formation working face of housing; The centre of described air permeable plate 2 is provided with the guiding gutter 6 isolated with air chamber 1, and the edge of described guiding gutter 6 is higher than the surface (now can adopt the projection of arc-shaped transition in the edge of guiding gutter 6) of air permeable plate 2; Or the baffle plate 7 that described guiding gutter 6 edge is arranged is higher than the surface of air permeable plate 2.Described guiding gutter 6 is front end near the high-end place of air permeable plate 2, and the front end of described guiding gutter 6 is taper or arc; The high-end of described air permeable plate 2 is provided with charging aperture 3, and the low side of described air permeable plate 2 is provided with the suction opeing 8 be communicated with air chamber 1; Described housing is provided with vibrating device 5 and is communicated with the air inlet 4 of air chamber 1, the gas pressure >=0.4MPa of described air inlet 4 place access.The bottom of described housing is provided with inclination-angle regulating device 9, and described inclination-angle regulating device 9 is located at the high-end side of air permeable plate 2.As required, described air chamber 1 can as a whole formula air chamber or be made up of mutually isolated multiple air chambers.
The pay-off of dry-type magnetic extractor of the present invention, when material from charging aperture 3 fall air permeable plate 2 high-end time, move down along the gradient under gravity and constantly overturn under the effect of vibrating device 5, agglomerating material is broken up, and height of materials scatter.Air permeable plate 2 both sides are provided with baffle plate 7, ensure that material can not overflow and force material to glide along air permeable plate 2 gradient.Simultaneously, the pressed gas accessed from the air inlet 4 air chamber 1 housing sprays from air permeable plate 2 surface, material is kicked up from air permeable plate 2 surface under gas jet impact, and magnetic coagulation is broken up under wind-force effect, thus material can fully be sorted out through magnetic system.Because air permeable plate 2 is rigid material, distortion can not be produced because gas impacts, the validity sorting space can be ensured.For ensureing the sorting result of equipment, distance between air permeable plate 2 and magnetic system is specific, namely the limited space between air permeable plate 2 and magnetic system, the air-flow of air permeable plate 2 mid portion ejection is not easy sorting in space flowing and produce downward power because of the obstruction of magnetic system, namely malleation is formed above the material that air-flow sorts in space at this, the mobility of material significantly reduces, and material may be caused to pile up at this and have influence on the sorting result of equipment.For this reason, as shown in Figure 3, the present invention creatively sets up upper end at air permeable plate 2 mid portion and is taper or arc and the guiding gutter 6 of isolating with air chamber 1, this air-flow sorted in space flows from guiding gutter 6 lower end to suction opeing 8 under air exhauster effect, thus make this sort in space to keep negative pressure or tiny structure above material, ensure that the mobility of material.Cause blocking to not make material fall into guiding gutter 6 inside, guiding gutter 6 edge is higher than air permeable plate 2 surface, and its difference in height can be arranged according to actual needs, can ensure the mobility of air-flow in guiding gutter 6.Because guiding gutter 6 edge is higher than air permeable plate 2 surface, for ensureing that material can not be piled up because guiding gutter 6 edge stops, taper or arc are arranged in guiding gutter 6 upper end, thus material can be moved down along guiding gutter 6 edge, ensure that the mobility of material.Because mineral granularity is different, it is also different in the translational speed on air permeable plate 2 surface, for controlling the translational speed of material, the present invention arranges inclination-angle regulating device 9 to regulate the gradient of air permeable plate 2 bottom air chamber 1, thus ensure that the translational speed of material meets equipment sort demand.
The pay-off of dry-type magnetic extractor of the present invention, working face is in tilted layout and is provided with vibrating device on housing, the material dropped on air permeable plate moves from high-end to low side under gravity and effect of vibration, because of air chamber cut-in pressure gas and from the ejection of air permeable plate surface, material is fluidization under gas jet impact, magnetic coagulation between magnetic material is broken up, and its magnetic system above air permeable plate is easily sorted.Be provided with in the middle of the air permeable plate edge higher than its surface and with the guiding gutter that air chamber is isolated, flowed to air permeable plate low side by guiding gutter under suction opeing draft effect by the air-flow that magnetic system stops, ensure that the mobility of material; Solve due to the limited space between air permeable plate and magnetic system, the air-flow of air permeable plate mid portion ejection is subject to the stop of magnetic system and above material, forms malleation, and the material fluidity in the middle of air permeable plate reduces and affects the technical problem of the sorting result of equipment.Achieve the high degree of dispersion of material, magnetic material is more easily sorted; Ensure that air-flow is sorting the mobility in space, thus avoid the accumulation of material; The inclination angle of equipment can be adjusted flexibly, wide accommodation according to raw meal particle size.
The present invention is not limited to aforesaid detailed description of the invention.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (7)
1. a pay-off for dry-type magnetic extractor, is characterized in that: it comprises the air chamber (1) be located on housing, is provided with air permeable plate (2) in the top of described air chamber (1), and described air permeable plate (2) is in tilted layout in the upper surface formation working face of housing; The high-end of described air permeable plate (2) is provided with charging aperture (3), and the low side of described air permeable plate (2) is provided with the suction opeing (8) be communicated with air chamber (1); Described housing is provided with vibrating device (5) and is communicated with the air inlet (4) of air chamber (1).
2. the pay-off of dry-type magnetic extractor as claimed in claim 1, is characterized in that: the centre of described air permeable plate (2) is provided with the guiding gutter (6) isolated with air chamber (1), and the edge of described guiding gutter (6) is higher than the surface of air permeable plate (2); Or the baffle plate (7) that described guiding gutter (6) edge is arranged is higher than the surface of air permeable plate (2).
3. the pay-off of dry-type magnetic extractor as claimed in claim 2, is characterized in that: described guiding gutter (6) is front end near air permeable plate (2) high-end place, and the front end of described guiding gutter (6) is taper or arc.
4. the pay-off of the dry-type magnetic extractor as described in one of claims 1 to 3, is characterized in that: described air permeable plate (2) is provided with some single holes, and wherein the diameter of single hole is 0.5 ~ 200 μm; Percent opening > 1% wherein on air permeable plate (2), air permeance resistance is 200Pa ~ 3000Pa.
5. the pay-off of dry-type magnetic extractor as claimed in claim 4, is characterized in that: the bottom of described housing is provided with inclination-angle regulating device (9), and described inclination-angle regulating device (9) is located at the high-end side of air permeable plate (2).
6. the pay-off of the dry-type magnetic extractor as described in claim 1 or 2 or 3 or 5, is characterized in that: described air chamber (1) as a whole formula air chamber or be made up of mutually isolated multiple air chambers.
7. the pay-off of the dry-type magnetic extractor as described in claim 1 or 2 or 3 or 5, is characterized in that: the gas pressure >=0.4MPa of described air inlet (4) place access.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624237.7A CN104353547B (en) | 2014-11-10 | 2014-11-10 | Feeding device of dry magnetic separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624237.7A CN104353547B (en) | 2014-11-10 | 2014-11-10 | Feeding device of dry magnetic separator |
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| CN104353547A true CN104353547A (en) | 2015-02-18 |
| CN104353547B CN104353547B (en) | 2017-05-03 |
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| CN201410624237.7A Active CN104353547B (en) | 2014-11-10 | 2014-11-10 | Feeding device of dry magnetic separator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339941A (en) * | 2019-07-24 | 2019-10-18 | 中南大学 | A kind of turbulent flow flat plat type magnetic separator |
| CN110385199A (en) * | 2019-07-10 | 2019-10-29 | 中国矿业大学 | A kind of three product fluidized bed dry type magnetic separators |
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| GB165822A (en) * | 1919-03-28 | 1921-07-11 | William Morris Mordey | Improvements in or relating to electro-magnetic separation or concentration of minerals |
| RU1801588C (en) * | 1991-04-08 | 1993-03-15 | Всесоюзный Заочный Институт Пищевой Промышленности | Method of purification of finely-dispersed materials from metal impurities and a device for its implementation |
| CN2165939Y (en) * | 1993-02-15 | 1994-05-25 | 中国矿业大学 | Dry type sorting unit of vibrating fluidized bed for fine coals |
| CN201527153U (en) * | 2009-09-25 | 2010-07-14 | 如皋市江北添加剂有限公司 | Vibrating fluidized bed dryer |
| CN103204552A (en) * | 2013-04-11 | 2013-07-17 | 山西大学 | Iron removing method during process of extracting aluminum from coal gangue |
| CN203155357U (en) * | 2013-03-27 | 2013-08-28 | 成都利君实业股份有限公司 | Magnetic separation device of dry type magnetic separator |
| CN203605647U (en) * | 2013-11-27 | 2014-05-21 | 东莞市百味佳食品有限公司 | Vibrating fluidized-bed dryer |
| CN203862384U (en) * | 2014-05-29 | 2014-10-08 | 中国地质科学院郑州矿产综合利用研究所 | Fluidized magnetic agglomeration gravity separation equipment |
| CN204234189U (en) * | 2014-11-10 | 2015-04-01 | 成都利君实业股份有限公司 | A kind of pay-off of dry-type magnetic extractor |
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2014
- 2014-11-10 CN CN201410624237.7A patent/CN104353547B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB165822A (en) * | 1919-03-28 | 1921-07-11 | William Morris Mordey | Improvements in or relating to electro-magnetic separation or concentration of minerals |
| RU1801588C (en) * | 1991-04-08 | 1993-03-15 | Всесоюзный Заочный Институт Пищевой Промышленности | Method of purification of finely-dispersed materials from metal impurities and a device for its implementation |
| CN2165939Y (en) * | 1993-02-15 | 1994-05-25 | 中国矿业大学 | Dry type sorting unit of vibrating fluidized bed for fine coals |
| CN201527153U (en) * | 2009-09-25 | 2010-07-14 | 如皋市江北添加剂有限公司 | Vibrating fluidized bed dryer |
| CN203155357U (en) * | 2013-03-27 | 2013-08-28 | 成都利君实业股份有限公司 | Magnetic separation device of dry type magnetic separator |
| CN103204552A (en) * | 2013-04-11 | 2013-07-17 | 山西大学 | Iron removing method during process of extracting aluminum from coal gangue |
| CN203605647U (en) * | 2013-11-27 | 2014-05-21 | 东莞市百味佳食品有限公司 | Vibrating fluidized-bed dryer |
| CN203862384U (en) * | 2014-05-29 | 2014-10-08 | 中国地质科学院郑州矿产综合利用研究所 | Fluidized magnetic agglomeration gravity separation equipment |
| CN204234189U (en) * | 2014-11-10 | 2015-04-01 | 成都利君实业股份有限公司 | A kind of pay-off of dry-type magnetic extractor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385199A (en) * | 2019-07-10 | 2019-10-29 | 中国矿业大学 | A kind of three product fluidized bed dry type magnetic separators |
| CN110339941A (en) * | 2019-07-24 | 2019-10-18 | 中南大学 | A kind of turbulent flow flat plat type magnetic separator |
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| CN104353547B (en) | 2017-05-03 |
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