CN104353547B - Feeding device of dry magnetic separator - Google Patents
Feeding device of dry magnetic separator Download PDFInfo
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- CN104353547B CN104353547B CN201410624237.7A CN201410624237A CN104353547B CN 104353547 B CN104353547 B CN 104353547B CN 201410624237 A CN201410624237 A CN 201410624237A CN 104353547 B CN104353547 B CN 104353547B
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- air
- permeable plate
- air permeable
- dry
- guiding gutter
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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, is particularly suited for the dry type magnetic separation of fine fraction magnetic material sorting
Machine.
Background technology
In recent years, with the development of grinding technology, ore deposit is widely used to based on the high-pressure roller mill of bed-grinding principle
Stone grinding field, achieves obvious Increasing Production and Energy Saving effect.Because the mineral Jing after high-pressure roller mill roll-in produce a large amount of fine fisssures
Stricture of vagina, the separation condition for possessing " dry separation dry throw " after abundant scattering and grading can effectively reduce the treating capacity of subsequent technique, thus
Ore dressing field has obtained developing faster.But the material Jing Jing after high-pressure roller mill process is commonly formed material cake, there is material point
Dissipate not open, clustering phenomena than more serious phenomenon, for the sorting result of follow-up dry-type magnetic extractor has large effect.Together
When, because the raw meal particle size Jing after high-pressure roller mill roll-in is typically smaller than 3mm, gangue particle is easily mingled with it by magnetic material parcel
In, the precision that sorts of follow-up dry-type magnetic extractor is affected greatly.
And the pay-off of conventional dry magnetic separator is generally using belt, disk, vibration feeder, fluid bed etc., it is impossible to
Ensure the uniformity of feeding, the disk pack that cannot more solve material wraps up in problem, so as to have influence on the sorting result of dry-type magnetic extractor.
The content of the invention
The present invention goal of the invention be：For above-mentioned problem, there is provided a kind of pay-off of dry-type magnetic extractor,
Its work surface is in tilted layout and is provided with vibrating device on housing, the material fallen on air permeable plate under gravity and effect of vibration from
High-end to spray because of air chamber cut-in pressure gas and from ventilative plate surface to low side movement, material is under gas jet impact in stream
State, the magnetic coagulation between magnetic material is broken up so that easily sorted during its magnetic system above air permeable plate.In air permeable plate
Between be provided with edge higher than its surface and guiding gutter isolate with air chamber, the air-flow stopped by magnetic system is logical under suction opeing draft effect
Cross guiding gutter to flow to air permeable plate low side, it is ensured that the mobility of material；Solve due to the space between air permeable plate and magnetic system
Limited, the air-flow that air permeable plate mid portion sprays is subject to the stop of magnetic system and malleation is formed above material, in the middle of air permeable plate
Material fluidity is reduced and the technical problem of the sorting result of impact equipment.
The technical solution used in the present invention is as follows：
The pay-off of the dry-type magnetic extractor of the present invention, including the air chamber on housing, sets above the air chamber
There is air permeable plate, the air permeable plate is in tilted layout in the upper surface formation work surface of housing；The high-end of the air permeable plate is provided with charging
Mouthful, the low side of the air permeable plate is provided with the suction opeing connected with air chamber；The housing is provided with vibrating device and connection air chamber
Air inlet.
As a result of said structure, wherein the work surface formed from air permeable plate can with the magnetic system with dry-type magnetic extractor,
And material is sent to into magnetic system working range.When material from charging aperture fall air permeable plate it is high-end when, under gravity along the gradient
Move down and constantly overturn in the presence of vibrating device so that pockets of material is broken up, and height of materials scatter.It is ventilative
Plate both sides are provided with baffle plate, it is ensured that material will not overflow and force material to glide along the air permeable plate gradient.Meanwhile, from the air inlet of air chamber
The pressed gas of access spray from ventilative plate surface, and material is kicked up under gas jet impact from ventilative plate surface, and magnetic coagulation exists
Broken up under wind-force effect, so that material can be sorted out fully when magnetic system coming.Because air permeable plate is rigid material, no
Can be deformed because gas impacts, it is ensured that sort the effectiveness in space.
The pay-off of the dry-type magnetic extractor of the present invention, the centre of the air permeable plate is provided with the water conservancy diversion being isolated with air chamber
Groove, the edge of the guiding gutter is higher than the surface of air permeable plate；Or the baffle plate that the guiding gutter edge is arranged is higher than air permeable plate
Surface.
It is the sorting result of guarantee equipment as a result of said structure, the distance between air permeable plate and magnetic system are specific
, i.e., the limited space between air permeable plate and magnetic system, the air-flow that air permeable plate mid portion sprays is not easy sorting stream in space
Move and produce downward power because of the obstruction of magnetic system, i.e., air-flow sorts at this and malleation is formed above material in space, material
Mobility is significantly reduced, and is likely to result in material here and is piled up and have influence on the sorting result of equipment.For this purpose, as shown in figure 3, this
Bright that the guiding gutter isolated with air chamber is set up in air permeable plate mid portion, this sorts air-flow in space under air exhauster effect from leading
Chute lower end to suction opeing flows, so that this sorts material top in space keeps negative pressure or tiny structure, it is ensured that material
Mobility.Cause blocking to not make material fall into guiding gutter inside, water conservancy diversion groove edge is higher than ventilative plate surface certain distance,
Mobility of the air-flow in guiding gutter can be ensured, because water conservancy diversion groove edge is higher than ventilative plate surface, it is ensured that material will not be because of water conservancy diversion
Groove edge is stopped and piled up.
The pay-off of the dry-type magnetic extractor of the present invention, the guiding gutter is front end near the high-end place of air permeable plate, described to lead
The front end of chute is taper or arc.
As a result of said structure, tapered or arc is set in guiding gutter upper end, so that material can be along guiding gutter
Edge is moved down, it is ensured that the mobility of material.
The pay-off of the dry-type magnetic extractor of the present invention, the air permeable plate is provided with some single holes, the wherein diameter of single hole
For 0.5～200 μm；Percent opening ＞ 1% wherein on air permeable plate, air permeance resistance is 200Pa～3000Pa.
As a result of said structure, can ensure that the pressed gas sprayed from the single hole meet and require, make material in gas
Kick up from ventilative plate surface under body jet impulse, magnetic coagulation is broken up under wind-force effect, so that material is when magnetic system
Can fully be sorted out and.
The pay-off of the dry-type magnetic extractor of the present invention, the bottom of the housing is provided with inclination-angle regulating device, the inclination angle
Adjusting means is located at the high-end side of air permeable plate.
As a result of said structure, because mineral granularity is different, it is also different in the translational speed of ventilative plate surface, is
The translational speed of control material, the present invention arranges inclination-angle regulating device to adjust the gradient of air permeable plate in air chamber bottom, so as to protect
What the translational speed of exhibit material met equipment sorts demand.
The pay-off of the dry-type magnetic extractor of the present invention, the air chamber is a monoblock type air chamber or by mutually isolated many
Individual air chamber composition.
As a result of said structure, the size or number of air chamber can be according to actual needs selected, to meet different operating modes
Under demand, its scope of application is extremely wide.
The pay-off of the dry-type magnetic extractor of the present invention, gas pressure >=0.4MPa that the air inlet is accessed.
It is only guaranteed to reach more than 0.4MPa in the gas pressure for accessing air inlet as a result of said structure,
Can make pressed gas from ventilative plate surface spray when, material is kicked up under gas jet impact from ventilative plate surface（If pressure mistake
It is little, cannot kick up）, magnetic coagulation is broken up under wind-force effect, so that material can be sorted out fully when magnetic system
Come.
In sum, as a result of above-mentioned technical proposal, the invention has the beneficial effects as follows：
1st, the pay-off of dry-type magnetic extractor of the invention, work surface is in tilted layout and is provided with vibrating device on housing,
The material fallen on air permeable plate under gravity and effect of vibration from high-end to low side movement, because of air chamber cut-in pressure gas and from saturating
Gas plate surface sprays, and material is in fluidization under gas jet impact, and the magnetic coagulation between magnetic material is broken up so that its process
Easily sorted during magnetic system above air permeable plate.
2nd, the pay-off of dry-type magnetic extractor of the invention, it is higher than its surface and and air chamber that edge is provided with the middle of air permeable plate
The guiding gutter of isolation, the air-flow stopped by magnetic system is flowed by guiding gutter under suction opeing draft effect to air permeable plate low side, is protected
The mobility of material is demonstrate,proved；Solve the air-flow sprayed due to the limited space between air permeable plate and magnetic system, air permeable plate mid portion
Malleation is formed above material by the stop of magnetic system, the material fluidity in the middle of air permeable plate is reduced and affects sorting for equipment
The technical problem of effect.
3rd, the pay-off of dry-type magnetic extractor of the invention, realizes the high degree of dispersion of material so that magnetic material more holds
Easily sorted；Ensure that air-flow is sorting the mobility in space, so as to avoid the accumulation of material；Can be according to raw meal particle size spirit
The inclination angle of adjusting device living, wide accommodation.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the pay-off total figure of the dry-type magnetic extractor in the present invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the top view of Fig. 1.
Labelling in figure：1- air chambers, 2- air permeable plates, 3- charging apertures, 4- air inlets, 5- vibrating devices, 6- guiding gutters, 7- gears
Plate, 8- suction opeings, 9- inclination-angle regulating devices.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine by any way.
This specification（Including any accessory claim, summary）Disclosed in any feature, unless specifically stated otherwise,
Equivalent by other or with similar purpose alternative features are replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
As shown in Figure 1 to Figure 3, the pay-off of dry-type magnetic extractor of the invention, including the air chamber 1 on housing,
The top of the air chamber 1 is provided with air permeable plate 2, and the air permeable plate 2 is provided with some single holes, minimum 0.5 μ of diameter of wherein single hole
M, is 200 μm to the maximum, can select in 0.5～200 μm, such as 50 μm, 100 μm；Percent opening ＞ 1% wherein on air permeable plate 2,
Air permeance resistance be minimum 200Pa, be 3000Pa to the maximum, can select in 200Pa～3000Pa, as 500 Pa, 1000 Pa,
2000 Pa etc.；The air permeable plate 2 is in tilted layout in the upper surface formation work surface of housing；The centre of the air permeable plate 2 be provided with
The guiding gutter 6 that air chamber 1 is isolated, the edge of the guiding gutter 6 is higher than the surface of air permeable plate 2（Now in the edge of guiding gutter 6
The projection of arc-shaped transition can be adopted）；Or the baffle plate 7 of the edge of guiding gutter 6 setting is higher than the surface of air permeable plate 2.It is described
Guiding gutter 6 is front end near the high-end place of air permeable plate 2, and the front end of the guiding gutter 6 is taper or arc；The height of the air permeable plate 2
End is provided with charging aperture 3, and the low side of the air permeable plate 2 is provided with the suction opeing 8 connected with air chamber 1；The housing is provided with vibration dress
Put the air inlet 4 of 5 and connection air chamber 1, the gas pressure >=0.4MPa accessed at the air inlet 4.The bottom of the housing
Inclination-angle regulating device 9 is provided with, the inclination-angle regulating device 9 is located at the high-end side of air permeable plate 2.As needed, the air chamber 1 can
Think a monoblock type air chamber or be made up of mutually isolated multiple air chambers.
The present invention dry-type magnetic extractor pay-off, when material from charging aperture 3 fall air permeable plate 2 it is high-end when, in gravity
The effect lower edge gradient is moved down and constantly overturn in the presence of vibrating device 5 so that pockets of material is broken up, and material is high
Degree scatter.The both sides of air permeable plate 2 are provided with baffle plate 7, it is ensured that material will not overflow and force material to glide along the gradient of air permeable plate 2.Together
When, the pressed gas that the air inlet 4 from the housing of air chamber 1 is accessed spray from the surface of air permeable plate 2, and material is under gas jet impact
Kick up from the surface of air permeable plate 2, magnetic coagulation is broken up under wind-force effect, so that material can be sorted fully when magnetic system
Out.Because air permeable plate 2 is rigid material, will not be deformed because gas impacts, it is ensured that sort the effectiveness in space.To protect
The distance between the sorting result of card equipment, air permeable plate 2 and magnetic system are specific, i.e., the space between air permeable plate 2 and magnetic system has
Limit, the air-flow that the mid portion of air permeable plate 2 sprays is not easy flow in space and produce because of the obstruction of magnetic system downward to sort
Malleation is formed above the material that power, i.e. air-flow sort in space at this, the mobility of material is significantly reduced, and is likely to result in material and is existed
This piles up and has influence on the sorting result of equipment.For this purpose, as shown in figure 3, the present invention creatively increases in the mid portion of air permeable plate 2
If upper end is taper or arc and the guiding gutter 6 isolate with air chamber 1, this sorts air-flow in space in the case where air exhauster is acted on from leading
The lower end of chute 6 to suction opeing 8 flows, so that this sorts material top in space keeps negative pressure or tiny structure, it is ensured that material
Mobility.Cause blocking to not make material fall into the inside of guiding gutter 6, the edge of guiding gutter 6 is higher than the surface of air permeable plate 2, its
Difference in height can be arranged according to actual needs, it is ensured that mobility of the air-flow in guiding gutter 6.Because the edge of guiding gutter 6 is higher than ventilative
The surface of plate 2, is to ensure that material will not be piled up because the edge of guiding gutter 6 is stopped, and the upper end of guiding gutter 6 arranges tapered or arc, from
And material is moved down along the edge of guiding gutter 6, it is ensured that the mobility of material.Because mineral granularity is different, it is in air permeable plate 2
The translational speed on surface is also different, is the translational speed of control material, and the present invention arranges inclination-angle regulating device in the bottom of air chamber 1
9 adjusting the gradient of air permeable plate 2, and so as to what the translational speed for ensureing material met equipment demand is sorted.
The pay-off of the dry-type magnetic extractor of the present invention, work surface is in tilted layout and vibrating device is provided with housing, falls
Material on air permeable plate under gravity and effect of vibration from high-end to low side movement, because of air chamber cut-in pressure gas and from ventilative
Plate surface sprays, and material is in fluidization under gas jet impact, and the magnetic coagulation between magnetic material is broken up so that it is through saturating
Easily sorted during magnetic system above gas plate.Edge is provided with the middle of air permeable plate higher than its surface and the guiding gutter isolated with air chamber,
The air-flow stopped by magnetic system is flowed by guiding gutter under suction opeing draft effect to air permeable plate low side, it is ensured that the flowing of material
Property；Solve due to the limited space between air permeable plate and magnetic system, the air-flow that air permeable plate mid portion sprays is stopped by magnetic system
And malleation is formed above material, the material fluidity in the middle of air permeable plate is reduced and affects the technology of the sorting result of equipment to ask
Topic.Realize the high degree of dispersion of material so that magnetic material is easier to be sorted；Ensure that air-flow is sorting the flowing in space
Property, so as to avoid the accumulation of material；The inclination angle of equipment, wide accommodation can be adjusted flexibly according to raw meal particle size.
The invention is not limited in aforesaid specific embodiment.The present invention is expanded to and any in this manual disclosed
New feature or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (6)
1. a kind of pay-off of dry-type magnetic extractor, it is characterised in that：It includes the air chamber on housing（1）, in the gas
Room（1）Top be provided with air permeable plate（2）, the air permeable plate（2）It is in tilted layout in the upper surface formation work surface of housing；It is described
Gas plate（2）High-end be provided with charging aperture（3）, the air permeable plate（2）Low side be provided with and air chamber（1）The suction opeing of connection（8）；Institute
State housing and be provided with vibrating device（5）And connection air chamber（1）Air inlet（4）；The air permeable plate（2）Centre be provided with and gas
Room（1）The guiding gutter being isolated（6）, the guiding gutter（6）Edge be higher than air permeable plate（2）Surface；Or the guiding gutter
（6）The baffle plate that edge is arranged（7）Higher than air permeable plate（2）Surface；The guiding gutter（6）With suction opeing（8）Coordinate, suction opeing
（8）Convulsion, makes air permeable plate（2）Overhead stream is along guiding gutter（6）Flow to suction opeing（8）, air permeable plate（2）Top is presented negative pressure.
2. the pay-off of dry-type magnetic extractor as claimed in claim 1, it is characterised in that：The guiding gutter（6）Near ventilative
Plate（2）High-end place be front end, the guiding gutter（6）Front end be taper or arc.
3. the pay-off of dry-type magnetic extractor as claimed in claim 1 or 2, it is characterised in that：The air permeable plate（2）It is provided with
A diameter of 0.5～200 μm of some single holes, wherein single hole；Wherein air permeable plate（2）On percent opening ＞ 1%, air permeance resistance is
200Pa～3000Pa.
4. the pay-off of dry-type magnetic extractor as claimed in claim 3, it is characterised in that：The bottom of the housing is provided with inclination angle
Adjusting means（9）, the inclination-angle regulating device（9）Located at air permeable plate（2）High-end side.
5. the pay-off of dry-type magnetic extractor as claimed in claim 4, it is characterised in that：The air chamber（1）For an entirety
Formula air chamber is made up of mutually isolated multiple air chambers.
6. the pay-off of dry-type magnetic extractor as claimed in claim 5, it is characterised in that：The air inlet（4）What place accessed
Gas pressure >=0.4MPa.
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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624237.7A CN104353547B (en) | 2014-11-10 | 2014-11-10 | Feeding device of dry magnetic separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104353547A CN104353547A (en) | 2015-02-18 |
| CN104353547B true CN104353547B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410624237.7A Active CN104353547B (en) | 2014-11-10 | 2014-11-10 | Feeding device of dry magnetic separator |
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| CN (1) | CN104353547B (en) |
Families Citing this family (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 |
| CN110339941B (en) * | 2019-07-24 | 2021-01-08 | 中南大学 | Turbulent flow flat plate type magnetic separator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (7)
| 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 |
| 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 |
-
2014
- 2014-11-10 CN CN201410624237.7A patent/CN104353547B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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