CN103128000B - A kind of magnetic separation device for dry magnetic separator - Google Patents
A kind of magnetic separation device for dry magnetic separator Download PDFInfo
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- CN103128000B CN103128000B CN201310101686.9A CN201310101686A CN103128000B CN 103128000 B CN103128000 B CN 103128000B CN 201310101686 A CN201310101686 A CN 201310101686A CN 103128000 B CN103128000 B CN 103128000B
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Abstract
The invention discloses a kind of magnetic separation device for dry magnetic separator, belong to dry-type magnetic extractor field, comprise and be provided with air inlet, and the non-magnetic closed air cavity of some air-vents, described some air-vents are located at the working face of described air cavity, also comprise its magneticaction force direction magnetic system of arranging contrary to described air cavity working face air-out direction, and the vibrating device in order to make described air cavity vibrate, relative motion between described air cavity and magnetic system, and the direction of motion is vertical with described magnetic system magneticaction force direction.The present invention a kind ofly can significantly improve the magnetic mineral rate of recovery and grade, magnetic separation device for dry magnetic separator that sorting power is adjustable.
Description
Technical field
The invention belongs to dry-type magnetic extractor field, be applicable to the sorting of industry magnetic minerals after milling equipment grinding such as metallurgy, mine, chemical industry, can sorting finished product or semi-finished product according to material solution grain situation, especially application diameter is less than the sorting of the pulp of 1mm.
Background technology
Utilize the difference of mineral grain magnetic, carrying out sorting in magnetic field is the method that magnetic material sorting adopts usually.Wet magnetic separator needs water as working media, cannot use in water-deficient area, and may cause environmental pollution, is unworthy promoting, and thus dry type magnetic separation obtains and develops faster in recent years.Conventional dry magnetic separator catches magnetic mineral particles by the direct attraction in magnetic field, but pollutes because of solid accumulation thickness, magnetic system and the reason such as to be mingled with and cause the mineral recovery rate sorted not high, therefore the rate of recovery improving magnetic mineral becomes the subject matter that magnetic separation faces.For this reason, many solutions are proposed in the industry.
A kind of wind-suction type permanent magnetism ore concentrate machine that Chinese patent CN201220178917.7 applies for, comprise charging aperture, dry type magnetic separation device, tailing storehouse and feed bin, the cavity inner roof wall of described dry type magnetic separation device is obliquely installed, and is provided with air extractor at the port of export of dry type magnetic separation device; Be disposed with the first magnetic roller group and the second magnetic roller group along pan feeding direction in the cavity of dry type magnetic separation device.
A kind of oscillatory type high-performance magnetic separator that Chinese patent CN201220367847.X applies for, comprise left socle, right support and conveyer belt, left socle, right support are connected by link; Described left socle one end is provided with can to the magnetic separation roller of magnetisable material absorption, and right support one end is provided with the driving runner ordering about conveyor belt motion, drives runner to be connected with Power Drive Unit; Described link is provided with the magnetic vibration device be positioned at below driving-belt.
A kind of dry-type magnetic extractor that Chinese patent CN201210043655.8 applies for, comprise conveyer belt, conveyer belt is divided into feeding section and magnetic separation section, magnetic system is set inside magnetic separation section, magnetic separation section is followed successively by the section of roughly selecting, selected section of circular arc and concentrate feeding section along flow direction of material, and below the section of roughly selecting, correspondence arranges inflatable shaking chute.
Solution like this is also a lot, does not enumerate at this.Summary is got up, and under namely solution adopts wind-force, vibration or mode of movement that the two has concurrently to make it fully be exposed to magnetic system, thus reaches the object improving the magnetic mineral rate of recovery.
Compared to conventional dry magnetic separator, above-mentioned solution makes the rate of recovery of mineral be enhanced, but still the problem that the grade that there are recovery mineral is undesirable.Carefully trace it to its cause, mainly because the wind-force in above-mentioned solution is only as a kind of carrying capacity, magnetic material only has gravity and vibration force and magnetic force to compete sorting in process, and the characteristic of particulate magnetic material makes the mineral sorting out there is more parcel and be mingled with, thus the problem causing mineral grade undesirable.
Summary of the invention
The object of the invention is to: provide a kind of and can improve the magnetic mineral rate of recovery and grade, magnetic separation device for dry magnetic separator that sorting power is adjustable.
The object of the invention is realized by following technical proposals:
A kind of magnetic separation device for dry magnetic separator, comprise and be provided with air inlet, and the non-magnetic closed air cavity of some air-vents, described some air-vents are located at the working face of described air cavity, also comprise its magneticaction force direction magnetic system of arranging contrary to described air cavity working face air-out direction, and the vibrating device in order to make described air cavity vibrate, described air cavity and the relative motion of magnetic system, and the direction of motion is vertical with described magnetic system magneticaction force direction.
As preferred embodiment, described magnetic is two or more sets uniform permanent magnets or electromagnet, and two adjacent groups magnetic pole is contrary.
As preferred embodiment, described air cavity is relative with magnetic system to be rotated or relative translation.
In such scheme, air cavity is relative with magnetic system to be rotated or relative translation, and as one is dynamic one quiet, or one fast one is slow in etc. to form relative motion.
As preferred embodiment, described air cavity and magnetic system movement velocity controlled.
As preferred embodiment, described air cavity working face air-vent single hole diameter 0.5 ~ 200 μm, percent opening is greater than 1%, air permeance resistance 200Pa ~ 3000Pa, and roughness is greater than 6.3 μm.
As preferred embodiment, described air cavity air inlet cut-in pressure gas, gas pressure >=400Pa.
As preferred embodiment, described magnetic system is located in described air cavity.
As preferred embodiment, it is outer with described air cavity working face opposite side that described magnetic system is located at described air cavity, correspondingly with magnetic system in air cavity is fixed with magnetizing mediums.
The course of work is: material to be selected is positioned at concentration equipment working face side, accesses gas and spray from the air-vent working face in air cavity by air inlet.When air cavity or magnetic system move through material to be selected, magnetic material and parcel thereof, field trash are adsorbed onto the working face bottom air cavity by magnetic force, and non-magnetic material is admitted to mine tailing mouth.Now, the material be adsorbed on working face is subject to the effect of magnetic force, gravity, wind-force and vibration force, magnetic material continues to be adsorbed on working face because of magneticaction, and non-magnetic material falls from working face and is admitted to mine tailing mouth under gravity, wind-force and vibration force effect.Along with air cavity or magnetic system move, because two adjacent groups magnet polarities is contrary, the material be adsorbed on working face occurs repeatedly to overturn, the non-magnetic material be mingled with or be wrapped in magnetic material continues to be subject to the effect of wind-force, gravity and vibration force and falls from working face and be admitted to mine tailing mouth in switching process, and magnetic material continues to be adsorbed on working face and is brought to concentrate mouth and takes off magnetic and fall into concentrate mouth in gravity, wind-force and vibration force effect.
Beneficial effect of the present invention: the present invention changes the action direction of magnetic separator wind-force in the past, magnetic material wind-force when sorting is made to participate in the competition with magnetic force, thus substantially increasing the rate of recovery and the grade of magnetic material, the magnetic field simultaneously changed makes this effect promote further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the stressed schematic diagram of magnetic material sorting of the present invention;
Fig. 3 is the structural representation of the embodiment of the present invention 2;
Fig. 4 is the front view of the embodiment of the present invention 3;
Fig. 5 is the side view of the embodiment of the present invention 3.
Detailed description of the invention
Following non-limiting examples is for illustration of the present invention.
embodiment 1:
A kind of vibration magnetic separator magnetic system as shown in Figure 1, mainly comprises non-magnetic air cavity 1(and can be disc type, box, cartridge type or other shapes), magnetic system 2(permanent magnet or electromagnet etc.), vibrating device 3 in order to make air cavity 1 vibrate; Air cavity 1 closes and is incorporated in correct position and establishes air inlet 4, working face be provided with air-vent air permeable plate 5 to form air flue; Vibrating device 3 is arranged symmetrically on air cavity 1 or its actuator; Magnetic system 2 is fixed in air cavity 1 by external support and forms relative translation motion with air cavity 1, in the present embodiment, magnetic system 2 maintains static, air cavity 1 is along axle translation, air cavity 1 direction of motion is vertical with magnetic system 2 magneticaction force direction and speed is controlled, and its magneticaction force direction of magnetic system 2 is contrary with air cavity 1 air permeable plate 5 air-out direction (namely wind-force is to the force direction of material) to be arranged; Air inlet 4 cut-in pressure gas also sprays from the pore air permeable plate 5.Material to be selected is positioned at described magnetic system air permeable plate 5 side, and when air cavity 1 moves through material to be selected, magnetic material and parcel thereof, field trash are adsorbed onto on air permeable plate 5 working face bottom air cavity by magnetic system 2, and non-magnetic material is admitted to mine tailing mouth.Now, magnetic force, gravity, wind-force and vibration force is subject under being adsorbed on the pressed gas effect that material on air permeable plate 5 accesses at magnetic system 2, vibrating device 3 and air inlet 4, magnetic material continues to be adsorbed on air permeable plate 5 working face because of magneticaction, and non-magnetic material falls from air permeable plate 5 working face and is admitted to mine tailing mouth under gravity, wind-force and vibration force effect.Along with air cavity 1 continues mobile, because magnetic system 2 two adjacent groups magnet polarities is contrary, be adsorbed on material on air permeable plate 5 to occur repeatedly to overturn, be mingled with or the non-magnetic material that is wrapped in magnetic material continues to be subject to the effect of wind-force, gravity and vibration force and falls from air permeable plate 5 working face and be admitted to mine tailing mouth in switching process.Because magnetic system 2 maintains static, when air cavity 1 moves to outside magnetic system 2 active region, magnetic material takes off magnetic, falls into concentrate mouth in gravity, wind-force and vibration force effect.Meanwhile, because air permeable plate 5 single hole diameter is 0.5 ~ 200 μm, air permeance resistance is 200Pa ~ 3000Pa, ensure that magnetic material can not enter in air cavity through air permeable plate, avoids the pollution of material to magnetic system; And air permeable plate percent opening is greater than 1%, the gas pressure >=400Pa of air cavity access, ensure that the percent of pass of gas at air permeable plate working face, thus wind-force can be made fully to participate in the competition with magnetic force when material sorting, ensure that the grade of material sorting; Air permeable plate roughness is greater than 6.3 μm, ensure that the band material ability of air permeable plate.Because this patent changes the action direction of magnetic separator wind-force in the past, make magnetic material wind-force when sorting participate in the competition with magnetic force, thus substantially increase the rate of recovery and the grade of magnetic material.
As shown in Figure 2, because this patent changes the action direction of magnetic separator wind-force in the past, namely magnetic force is contrary with wind-force force direction, magnetic material wind-force when sorting is made to participate in the competition with magnetic force, material is subject to the effect of gravity, vibration force, magnetic force, centrifugal force or inertia force when sorting, thus substantially increases the rate of recovery and the grade of magnetic material.
embodiment 2:
As shown in Figure 3, the present embodiment is substantially the same manner as Example 1, and its difference is: magnetic system 2 is fixed on outside the air cavity 1 relative with air permeable plate 5 by external support, and magnetizing mediums 6 is fixed in the air cavity 1 corresponding with magnetic system 2, and all the other are identical with Fig. 1.It is outer and magneticaction scope extended by magnetizing mediums 6 that magnetic system 2 is arranged on air cavity by this preferred version, both ensure that sorting result, and turn avoid the sealing problem between the external support of magnetic system 2 in scheme 1 and air cavity 1.
embodiment 3:
Fig. 4 and Fig. 5 is another embodiment of this patent, the present embodiment is substantially the same manner as Example 1, its difference is: in the present embodiment, air cavity 1 is a hollow cylinder pivoted, and speed is controlled, cylindrical shell adopts the air permeable plate 5 being provided with air-vent to make, and it is motionless that magnetic system 2 is located at air cavity 1 internal fixtion, forms relative rotary motion with the air cavity 1 rotated, air inlet 4 is located at the quill shaft cut-in pressure gas that are connected with air cavity 1, and vibrating device 3 is located on axle.In the present embodiment, material to be selected is carried below air cavity 1, and under magnetic system 2 effect, magnetic material and encasing inclusion thereof are adsorbed onto air permeable plate 5 working face, non-magnetic material is admitted to mine tailing mouth.Now, magnetic force, gravity, wind-force and vibration force is subject under being adsorbed on the pressed gas effect that material on air permeable plate 5 accesses at magnetic system 2, vibrating device 3 and air inlet 4, magnetic material continues to be adsorbed on air permeable plate 5 working face because of magneticaction, and non-magnetic material falls from air permeable plate 5 working face and is admitted to mine tailing mouth under gravity, wind-force and vibration force effect.Along with air cavity 1 rotates, because two adjacent groups magnet polarities is contrary, be adsorbed on material on air permeable plate 5 to occur repeatedly to overturn, be mingled with or the non-magnetic material that is wrapped in magnetic material continues to be subject to the effect of wind-force, gravity and vibration force and falls from air permeable plate 5 working face and be admitted to mine tailing mouth in switching process.When air cavity 1 moves to outside magnetic system 2 active region, magnetic material takes off magnetic, falls into concentrate mouth in gravity, wind-force and vibration force effect.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a magnetic separation device for dry magnetic separator, it is characterized in that: comprise and be provided with air inlet, and the non-magnetic closed air cavity of some air-vents, described some air-vents are located at the working face of described air cavity, also comprise its magneticaction force direction magnetic system of arranging contrary to described air cavity working face air-out direction, and the vibrating device in order to make described air cavity vibrate, described air cavity and the relative motion of magnetic system, and the direction of motion is vertical with described magnetic system magneticaction force direction; It is outer with described air cavity working face opposite side that described magnetic system is located at described air cavity, correspondingly with magnetic system in air cavity is fixed with magnetizing mediums.
2. magnetic separation device for dry magnetic separator as claimed in claim 1, is characterized in that: described magnetic is two or more sets uniform permanent magnets or electromagnet, and two adjacent groups magnetic pole is contrary.
3. magnetic separation device for dry magnetic separator as claimed in claim 1, is characterized in that: described air cavity is relative with magnetic system to be rotated or relative translation.
4. magnetic separation device for dry magnetic separator as claimed in claim 1, is characterized in that: described air cavity and magnetic system movement velocity controlled.
5. magnetic separation device for dry magnetic separator as claimed in claim 1, is characterized in that: described air cavity working face air-vent single hole diameter 0.5 ~ 200 μm, percent opening is greater than 1%, air permeance resistance 200Pa ~ 3000Pa, and roughness is greater than 6.3 μm.
6. magnetic separation device for dry magnetic separator as claimed in claim 1, is characterized in that: described air cavity air inlet cut-in pressure gas, gas pressure >=400Pa.
7. magnetic separation device for dry magnetic separator as claimed in claim 1, is characterized in that: described magnetic system is located in described air cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310101686.9A CN103128000B (en) | 2013-03-27 | 2013-03-27 | A kind of magnetic separation device for dry magnetic separator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310101686.9A CN103128000B (en) | 2013-03-27 | 2013-03-27 | A kind of magnetic separation device for dry magnetic separator |
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| CN103128000A CN103128000A (en) | 2013-06-05 |
| CN103128000B true CN103128000B (en) | 2015-10-21 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084295A (en) * | 2014-06-10 | 2014-10-08 | 灌阳县陈工选矿机械制造有限公司 | Magnetic separation cylinder of magnetic separation machine |
| CN104959226B (en) * | 2015-07-24 | 2017-08-25 | 成都利君科技有限责任公司 | A kind of dry-type magnetic extractor and mineral magnetic selection method for introducing wind-force |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55130409A (en) * | 1979-03-26 | 1980-10-09 | Shinko Electric Co Ltd | Belt vibrator for belt type magnetic separator |
| US4451360A (en) * | 1982-01-25 | 1984-05-29 | United States Steel Corporation | Device for removal of magnetic particles from a magnetic separator |
| CN85103457A (en) * | 1985-05-10 | 1986-11-05 | 地质矿产部矿产综合利用研究所 | Magnetic agglomeration gravity separation method and separator thereof |
| CN2179792Y (en) * | 1993-12-07 | 1994-10-19 | 沈阳矿山机器厂 | Permanent-magnetic inner tube separator |
| CN2745664Y (en) * | 2004-08-11 | 2005-12-14 | 辛为思 | Permanent magnet cylindrical shaking dry screening machine |
| 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 |
-
2013
- 2013-03-27 CN CN201310101686.9A patent/CN103128000B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55130409A (en) * | 1979-03-26 | 1980-10-09 | Shinko Electric Co Ltd | Belt vibrator for belt type magnetic separator |
| US4451360A (en) * | 1982-01-25 | 1984-05-29 | United States Steel Corporation | Device for removal of magnetic particles from a magnetic separator |
| CN85103457A (en) * | 1985-05-10 | 1986-11-05 | 地质矿产部矿产综合利用研究所 | Magnetic agglomeration gravity separation method and separator thereof |
| CN2179792Y (en) * | 1993-12-07 | 1994-10-19 | 沈阳矿山机器厂 | Permanent-magnetic inner tube separator |
| CN2745664Y (en) * | 2004-08-11 | 2005-12-14 | 辛为思 | Permanent magnet cylindrical shaking dry screening machine |
| 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 |
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