CN109847926A - A kind of dry wind magnetic separator and using method thereof - Google Patents
A kind of dry wind magnetic separator and using method thereof Download PDFInfo
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- CN109847926A CN109847926A CN201910026572.XA CN201910026572A CN109847926A CN 109847926 A CN109847926 A CN 109847926A CN 201910026572 A CN201910026572 A CN 201910026572A CN 109847926 A CN109847926 A CN 109847926A
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- magnetic separator
- iron powder
- magnetic
- gas nozzle
- dry wind
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- 239000006148 magnetic separator Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000012141 concentrate Substances 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 46
- 238000007885 magnetic separation Methods 0.000 abstract description 24
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 description 6
- 241001676635 Lepidorhombus whiffiagonis Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- -1 hydraulic pressure Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of dry type wind magnetic separators, comprising: shell, the rotation gentle body nozzle of magnetic roller, shell are equipped with feed inlet, concentrate outlet and tailing outlet, and rotation magnetic roller includes fan-shaped magnet and turnbarrel；Several gas nozzles are installed on the bracket or shell of the lower section of fan-shaped magnet.The invention also discloses the methods for using the dry type wind magnetic separator to carry out iron powder magnetic separation, comprising: opens dry type wind magnetic separator；Material is conveyed to feed inlet；Start gas nozzle and carries out jet；Open negative pressure dust removing device.Gas nozzle is arranged in lower section by rotating magnetic roller fan-shaped magnet, in carrying out iron powder separation process, gas nozzle can will be adsorbed on iron powder surface on turnbarrel and between the impurity etc. that is mingled with blow down separation, it is discharged from tailing outlet and negative pressure dust removing device, to which the iron powder impurity content that concentrate outlet is discharged is lower, iron powder grade is higher.Carry out iron powder it is selected when, reduce the number of magnetic separation, the higher iron powder of purity for meeting grade requirement can be obtained.
Description
Technical field
The present invention relates to magnetic separation machinery field more particularly to a kind of dry type wind magnetic separator and its application methods.
Background technique
So-called magnetic separation is exactly the magnetic contrast using sorted material, is separated in sorting magnetic field to mineral grain
A kind of ore dressing means.Magnetic separation can be divided to wet magnetic separation and dry type magnetic separation two kinds of forms.Wet magnetic separator be using water as working media,
Water, hydraulic pressure, water quality determine separating effect, will be difficult to realize in the area of serious water shortage, and to surrounding enviroment and ground
It is lauched and is also possible to will cause serious pollution；
Dry-type magnetic extractor is the magnetic dressing machinery sorted for dry magnetic mineral, and dry-type magnetic extractor leans on magnetic force
It being sorted with centrifugal force, it is desirable that the mineral water content being sorted is low, can move freely between particle, at independent free state,
Compared to wet magnetic separator, dry-type magnetic extractor has the advantage that structure is simple, treating capacity is big, easy to operate, easy to maintain.
Existing dry-type magnetic extractor includes shell and rotation magnetic roller, and the upper end of shell offers feed inlet, the lower end of shell
The tailing outlet of concentrate outlet and namagnetic substance is offered, rotation magnetic roller is mounted in shell, and rotation magnetic roller includes rotation
Rotaring sleeve, the fan-shaped magnet being fixedly mounted in the rotary shaft in turnbarrel, fan-shaped magnet are being fixedly mounted on rotary shaft just
Lower section, fan-shaped magnet and turnbarrel concentric are simultaneously installed close to turnbarrel, and fan-shaped magnet is in a circumferential direction by several pieces
Magnet is constituted in such a way that the pole N and S are extremely alternately arranged, and tailing outlet is located at the lower section of fan-shaped shell shape magnet, concentrate discharge
Mouthful be located at the rear of tailing outlet on turnbarrel direction of rotation, such raw material enters shell by feed inlet, in shell and
Rotate the rotation between magnetic roller by the effect of magnet and turnbarrel, complete the separation of iron powder and namagnetic substance, iron powder by
The discharge of concentrate outlet, the namagnetic substances such as dust are discharged by tailing outlet.But existing dry-type magnetic extractor passes through single
The impure amount of the iron powder obtained after magnetic separation is higher, it is desirable to which the iron powder for obtaining high-quality is extremely difficult, needs to make by multiple tracks magnetic separation
Industry, every one of magnetic separation are required by a magnetic plant, and the equipment cost of magnetic separation is higher, the utilization rate of every one of magnetic plant
It is lower with efficiency of magnetic separation, and it is difficult to ensure iron powder quality.
To solve the above-mentioned problems, multi-pass magnetic separation is integrated in one by the patent document of 108787161 A of Publication No. CN
Whole dry-type magnetic extractor, improves efficiency of magnetic separation to a certain extent.But when iron powder is adsorbed on turnbarrel, by
In the magnetic coagulation and miscellaneous magnetic clutch phenomena such as and that part dust can be mingled in the iron powder sorted out, not have in the separation of iron powder
There is method to handle this part dust, the grade so as to cause iron powder after separation is not high, it is difficult to meet the need of final products
It asks.Want to obtain the high iron powder of grade there is still a need for by multiple tracks magnetic separation process, the overall utilization rate of magnetic plant is lower.
Summary of the invention
In view of the problems of the existing technology, the purpose of the present invention is to provide a kind of using air as the dry type of working media
Wind magnetic separator and its application method can reduce the impurity of roller upper surface absorption while on iron powder adsorption to roller, thus
The number of magnetic concentration working is greatly reduced, and the iron powder of high-quality can be obtained.
To achieve the above object, the technical solution of dry type wind magnetic separator of the present invention is as follows:
A kind of dry type wind magnetic separator, comprising: shell, the rotation gentle body nozzle of magnetic roller, the shell are equipped with feed inlet, essence
Mine outlet and tailing outlet, the rotation magnetic roller includes fan-shaped magnet and turnbarrel；Several described gas nozzle peaces
On the bracket or shell of lower section loaded on the fan-shaped magnet.
Further.It further include negative pressure dust removing device, the negative pressure dust removing device is located at the outside of the shell, the negative pressure
Dust-extraction unit is connected to by pipeline with the shell.
Further, the jet direction of each gas nozzle is adjustable.
Further, all the gas nozzle is uniformly distributed along the axis direction of the rotation magnetic roller as several rows.
Further, the jet direction of several gas nozzles is the rotary shaft of the vertically turnbarrel.
Further, the jet direction of several gas nozzles is parallel with the turnbarrel direction of rotation.
Further, the jet direction of several gas nozzles is opposite with the direction of rotation of the turnbarrel.
Further, the gas nozzle stretches out the inner surface of the shell, the gas nozzle and the turnbarrel
Distance is 1cm~20cm.
The present invention also provides the technical solutions of the application method of dry type wind magnetic separator:
A method of using above-mentioned dry type wind magnetic separator, comprising: open the dry type wind magnetic separator；To the feed inlet
Convey material；Start the gas nozzle and carries out jet；Open negative pressure dust removing device.
Further, further includes: before opening the dry type wind magnetic separator, adjust the jet angle of the gas nozzle.
Gas nozzle is arranged by rotating the lower section of magnetic roller fan-shaped magnet in dry type wind magnetic separator in the present invention, introduces air
For working media, during carrying out iron powder separation after the unlatching of dry type wind magnetic separator, material from feed inlet by stock guide into
Other namagnetic substances such as dust, gas nozzle energy can be also adsorbed with while being adsorbed with iron powder after entering magnetic separator, in magnetic roller
It is enough to be adsorbed on the namagnetic substances such as the dust on iron powder surface on turnbarrel and is blown down from turnbarrel, thus by iron powder from institute
When stating the discharge of concentrate outlet, the impurity in iron powder is less, and dustiness is lower, and the grade of iron powder is higher, greatly strengthens sorting
Effect.During single magnetic separation, improve iron powder grade preferably, thus, carry out iron powder it is selected when, reduce magnetic
The iron powder for meeting grade requirement can be obtained in the number of choosing.
In the preferred technical solution of the present invention, dry type wind magnetic separator further includes negative pressure dust removing device, and negative pressure dust removing device is logical
Piping and cage connection remove the fugitive dust in dry type wind magnetic separator by negative pressure dust removing device, reduce dust to the mill of equipment
Damage；Meanwhile upgrading and reducing environmental pressure, reduce environmental pollution.
In addition, the adjusting of jet angle can be carried out to gas nozzle before the magnetic separation for carrying out iron powder, it is various to adapt to
Under operating condition, the needs of iron powder magnetic separation.
Detailed description of the invention
Fig. 1 is the main view sectional view of dry type wind magnetic separator of the present invention；
Fig. 2 is the application method flow chart of dry type wind magnetic separator of the present invention.
Specific embodiment
To clearly demonstrate design philosophy of the invention, below with reference to example, the present invention will be described.
Embodiment 1
Fig. 1-Fig. 2 is the embodiment of dry type wind magnetic separator of the present invention, which includes: shell 1, rotation magnetic roller
2 and gas nozzle 3, feed inlet 11, concentrate outlet 12 and tailing outlet 13, baffle 14, stock guide are provided on shell 1
15, rotation magnetic roller 2 includes fan-shaped magnet 21 and turnbarrel 22；Gas nozzle 3 spray gas can for arbitrary temp, pressure,
The gas of flow.From feed inlet 11 to tailing outlet 13, the spacing between shell 1 and turnbarrel 22 is iron powder constituency.Figure
In, the direction A is the direction of rotation of turnbarrel 22, and the direction B is the feedstock direction of material.
Multiple gas nozzles 3 are installed on the shell 1 of the lower section of fan-shaped magnet 21, in the present embodiment, 3 edge of gas nozzle
The axis direction of rotation magnetic roller 2 be uniformly distributed as 11 rows, the particular number of gas nozzle 3 according to the length of turnbarrel 22 and
For the clipping room of gas nozzle 3 away from determination, the distance between gas nozzle 3 and turnbarrel 22 are 5cm, as shown in Figure 1, whole gas
The jet direction of body nozzle 3 is the rotary shaft of vertically turnbarrel 22, and the jet direction direction of gas nozzle 3 is fan-shaped
The boundary of 21 opposed polarity small magnet of magnet.
In the other embodiments of dry type wind magnetic separator of the present invention, the jet direction of each gas nozzle 3 is adjustable
, gas nozzle 3 also may be mounted on bracket, then gas nozzle 3 is mounted on to the lower section of fan-shaped magnet 21 by bracket
On shell 1, gas nozzle 3 is uniformly distributed along the axis direction of rotation magnetic roller 2 as several rows, and specific number of rows is according to gas nozzle
3 size and the size of fan-shaped magnet 21 determine；Gas nozzle 3 can also be erratically distributed in the lower section of fan-shaped magnet.Spray
Gas direction can be parallel with 22 direction of rotation of turnbarrel, and jet direction can also be with 22 direction of rotation of turnbarrel on the contrary, simultaneously
And the jet direction of different gas nozzles 3 can be different, for example, the jet direction of all gas nozzles 3 include with
Upper three kinds of situations.
The dry type wind magnetic separator further includes negative pressure dust removing device 4, and negative pressure dust removing device is located at the outside of shell 1, passes through pipe
Road is connected to shell 1, for removing in dry type wind magnetic separator the namagnetic substances such as generated dust after magnetic separation, reduces powder
Abrasion of the dirt to equipment；Meanwhile the grade of sorting iron powder is improved, reduce environmental pressure, reduces environmental pollution.Negative pressure dust removing device
4 are protruded into shell 1 by pipeline, keep dedusting more thorough.
Stock guide 15 in shell 1 at feed inlet 11 is set, for material equably to be imported to dry type wind magnetic separator
In, make material during magnetic separation as far as possible close to magnetic roller 2, it is ensured that material passes through fully magnetic separation, prevents the waste of material.
Baffle 14 in shell 1 at concentrate outlet 12 is set, and when iron powder is discharged, baffle 14 will be for after purifying
Iron powder export.
Gas nozzle 3 includes gas actuating device (not shown), and in the present embodiment, all gas nozzles 3 are adopted
It is driven with same driving device, driving device is the usual means such as blower, air pump or gas cylinder.
Since fan-shaped magnet 21 is arranged by muti-piece small magnet, the pole orientation of the small magnet of arranged adjacent is opposite
, in this way, in the work of dry type wind magnetic separator, by fan-shaped magnet 21 by iron powder adsorption to turnbarrel 22, gas nozzle 3
The airflow function of ejection blows dust in appearance off on the outer surface for being adsorbed iron powder, meanwhile, with the rotation of turnbarrel 22
Turn and the effect of the opposed polarity small magnet of fan-shaped magnet 21, the iron powder being adsorbed can be overturn on the curved surface of turnbarrel 22,
Due to the continuous action of gas nozzle 3, in the switching process of iron powder, the impurity for adsorbing and being mingled in iron powder can be blown off,
The higher iron powder of grade can be obtained in concentrate outlet 12 in this way.
Embodiment 2
Fig. 2 is the embodiment that the present invention uses dry type wind magnetic separator method, comprising the following steps: adjusts the spray of gas nozzle
Air horn degree 101；Correspondingly the pressure of jet can also be adjusted simultaneously, when gas nozzle jet direction and turnbarrel are revolved
Turn direction it is parallel when whiff pressure be greater than jet direction it is opposite with turnbarrel direction of rotation when whiff pressure, jet direction
Vertically when the rotary shaft of turnbarrel, whiff pressure is therebetween.Further, it is also possible to according to the particle of specific material
Size cases carry out the determination of whiff pressure.
Open dry type wind magnetic separator 102, turnbarrel rotation；
Material 103 is conveyed to feed inlet, material carries out magnetic after feed inlet enters dry type wind magnetic separator by stock guide
Choosing.
Start gas nozzle and carry out jet 104, gas nozzle can start at once after opening dry type wind magnetic separator, can also be with
Start together with dry type wind magnetic separator.Effect by air-flow to turnbarrel surface iron powder is adsorbed on will be adsorbed on rotary sleeve
Impurity outside the iron power removing on cylinder surface is blown off, to can obtain the higher iron powder of grade in concentrate outlet.
Negative pressure dust removing device 105 is opened, negative pressure dust removing device is opened together with gas nozzle, to remove dry type wind magnetic separator
In generated dust, reduce abrasion of the dust to equipment, meanwhile, upgrade and reduce environmental pressure, reduce environmental pollution.
In addition, by practice, traditional dry type magnetic separation process can not obtain containing miscellaneous even across the magnetic concentration working of multiple tracks
Quality is not more than 2% iron powder, using the dry type wind magnetic separator in the present invention and the method for carrying out magnetic separation using the magnetic separator, warp
Cross 3 magnetic concentration workings, so that it may so that the dustiness of iron powder 2% hereinafter, greatly reduce the use of magnetic plant, improve magnetic
The efficiency of choosing.
It should be noted that some of which structure can have different selections other than the above-mentioned specific example provided.
Such as, it can also be attached using bend pipe between negative pressure dust removing device 4 and shell 1, to facilitate being installed as negative pressure dust removing device 4
It is quasi-；The distance between gas nozzle 3 and turnbarrel 2 can be selected between 1cm~20cm, with specific reference to the feelings of material
Condition is selected；Gas nozzle 3 is along the size that the equally distributed number of rows of axis direction of rotation magnetic roller 2 is according to fan-shaped magnet
It is determined with combined factors such as the technique requirements of magnetic separation, can be 1 row or more row；Different gas nozzles 3 can also be by not
Driving jet is carried out with driving device；
Etc., and these are all that those skilled in the art are based on its basic skills i.e. on the basis of understanding inventive concept
It can make, therefore no longer enumerate herein.
Finally, it will be appreciated that the principle that embodiment of above is intended to be merely illustrative of the present and the example that uses
Property embodiment, however the present invention is not limited thereto.For those of ordinary skills, do not depart from it is of the invention
In the case where principle and essence, various changes and modifications can be made therein, for example, the number of gas nozzle, shape, jet direction and
Whiff pressure etc..These variations and modifications are also considered as protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026572.XA CN109847926A (en) | 2019-01-11 | 2019-01-11 | A kind of dry wind magnetic separator and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026572.XA CN109847926A (en) | 2019-01-11 | 2019-01-11 | A kind of dry wind magnetic separator and using method thereof |
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| Publication Number | Publication Date |
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| CN109847926A true CN109847926A (en) | 2019-06-07 |
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| CN201910026572.XA Pending CN109847926A (en) | 2019-01-11 | 2019-01-11 | A kind of dry wind magnetic separator and using method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482275A (en) * | 2020-04-15 | 2020-08-04 | 王小平 | Negative pressure-based ultramicro black fungus powder purification system |
| WO2022099394A1 (en) * | 2020-11-16 | 2022-05-19 | Vale S.A. | Method and system for removing iron ore particles adhering by magnetic hysteresis to a magnetic matrix of a vertical magnetic separator |
| RU2830687C1 (en) * | 2020-11-16 | 2024-11-25 | Вале С.А. | Method and system for removal of iron ore particles adhered to magnetic matrix of vertical magnetic separator due to magnetic hysteresis |
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Application publication date: 20190607 |