CN106000636B - A kind of belt dry-type magnetic extractor - Google Patents

A kind of belt dry-type magnetic extractor Download PDF

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Publication number
CN106000636B
CN106000636B CN201610642751.2A CN201610642751A CN106000636B CN 106000636 B CN106000636 B CN 106000636B CN 201610642751 A CN201610642751 A CN 201610642751A CN 106000636 B CN106000636 B CN 106000636B
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magnetic
magnetic system
charging gear
belt
magnetic field
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CN106000636A (en
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何亚民
魏勇
徐智平
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Chengdu Leejun Industrial Co Ltd
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Chengdu Leejun Industrial Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • B03C1/16Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
    • B03C1/18Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation

Abstract

The invention discloses a kind of belt dry-type magnetic extractors, including housing, feed inlet set on upper part of the housing, the lower section of feed inlet is equipped with charging gear, the top of charging gear is equipped with concentration equipment, concentration equipment includes a magnetic separation belt, along the conveying material direction of charging gear, it is equipped with primary election magnetic system and selected magnetic system in magnetic separation belt side by side successively, the conveying end of charging gear does not enter the magnetic material unloading range of selected magnetic system, material on the magnetic field range covering charging gear of primary election magnetic system, the magnetic field of selected magnetic system is alternating magnetic field, primary election magnetic system and the magnetic field range of selected magnetic system are overlapped mutually.The present invention can continuously handle magnetic material after crushing, can finally obtain the product close with wet concentration grade, strictly control tailing magnetic material grade, equipment disposal ability is strong, and throwing tail rate is big, and it is wide to adapt to mineral grade, reduce subsequent process equipment investment, reduce system operation cost.

Description

A kind of belt dry-type magnetic extractor
Technical field
The present invention relates to mineral magnetic separation technology field, more particularly to a kind of belt dry-type magnetic extractor.
Background technology
So-called magnetic separation is exactly the magnetic contrast using sorted material, and mineral grain is detached in magnetic field is sorted One kind sort mode.Magnetic separation is divided into wet magnetic separation and dry type magnetic separation, and wet magnetic separation is using water as working media, and dry type magnetic separation is complete Water is not had to entirely as working media.Current mineral magnetic separation is to obtain the grade of smelting requirements, using wet ball mill by object Expect it is levigate after sorted with wet magnetic separator.This technique is also economical rationality for more high-grade raw ore, and A series of problem will be brought for more low-grade raw ore, due to containing a large amount of gangue in low-grade ore, if will not Wherein a large amount of gangue, which first sorts out, to be come, it will causes complicated production system, high energy consumption and high to entire production technology Wet tailings glass cost.
Therefore, currently in processing compared in the technological process of low-grade ore, dry-type magnetic extractor will be used after crushing raw ore first It carries out throwing tail to handle, a large amount of gangues in raw ore of skimming enter back into wet magnetic separation technological process progress after head grade is improved It sorts, since the tailing grain class distribution after dry throw is wide, easily carries out safe storage, the investment relatively economical of dry tailings glass, significantly The amount of wet tailing is reduced, ore grinding reduces the investment of Tailings Dam with sorting energy consumption in abundant reduction system.
However the dry-type magnetic extractor of tail is thrown currently used for dry type, since magnetic coagulation of the magnetic mineral particles in magnetic field shows As magnetic material is caused mutually to be mingled with nonmagnetics, still has a large amount of nonmagnetics to be mixed in the magnetic material after sorting, causes product Grade is not high, to improve product grade, the nonmagnetics being mingled with is detached, and can enter a part of magnetic material in tailing, And tailing magnetic material grade is higher, causes the waste of resource.This be current dry-type magnetic extractor concentrate grade, tailings grade, Leave the outstanding problem showed in rate, three indexs can only protect second, can not three all care for.How ore deposit product are ensured simultaneously Position, tailings grade throw tail rate this three indexs just into the technical staff for studying dry-type magnetic extractor difficulty in the urgent need to address Topic.
Invention content
The goal of the invention of the present invention is:In view of the above problems, a kind of belt dry-type magnetic extractor is provided, it can be continuous Processing magnetic material after crushing, can finally obtain the product close with wet concentration grade, it is stringent to control tailing magnetic item The wasting of resources is reduced in position, and equipment disposal ability is strong, throws tail rate height, and adaptation mineral grade is wide, reduces subsequent process equipment investment, Reduce system operation cost.
The technical solution adopted by the present invention is as follows:A kind of belt dry-type magnetic extractor, including housing, set on upper part of the housing into Material mouth, the lower section of feed inlet are equipped with charging gear, and the top of charging gear is equipped with concentration equipment, and concentration equipment includes a magnetic separation Belt along the conveying material direction of charging gear, is equipped with primary election magnetic system and selected magnetic system, feed dress side by side successively in magnetic separation belt The conveying end put does not enter the magnetic material unloading range of selected magnetic system, and the magnetic field range of primary election magnetic system is covered on charging gear Material, the magnetic field of selected magnetic system is alternating magnetic field, and primary election magnetic system and the magnetic field range of selected magnetic system are overlapped mutually.
Due to the setting of above structure, for material through feed inlet to charging gear, charging gear is evenly laid out, steady by material The lower section of primary election magnetic system that is fixed, being continuously fed forward in magnetic separation belt, since primary election magnetic system is big to the magnetic field force of material In the gravity of material, the magnetic material of all bands and since magnetic coagulation is mixed under the action of primary election magnetic system high-intensity magnetic field Non-magnetic material in magnetic material is above drawn onto on magnetic separation belt, and remaining nonmagnetics is directly thrown by charging gear Tail;It is attracted on the alternation that the material on magnetic separation belt below magnetic separation Belt Conveying to selected belt, is provided due to selected magnetic system Magnetic field, magnetic material will generate overturning under the action of alternating magnetic field, thus will be before between magnetic material and nonmagnetics due to magnetic Reuniting, the magnetic clutch generated is miscellaneous to break up, and nonmagnetics is just only fallen down by gravity from magnetic separation belt, and magnetic material is still It moves forward under the frictional force effect provided in magnetic field force, gravity and magnetic separation belt to the magnetic discharging of selected magnetic system End, after final magnetic material takes off magnetic, magnetic material is left under the effect of gravity.
Further, it in order to which primary election magnetic system is enable to realize the sorting of strong magnetic and weak magnetic, to a certain extent, solves disk pack and wraps up in With magnetic clutch it is miscellaneous the problem of, primary election magnetic system includes the different field regions of multiple magnetic field intensities.When magnetic material enters primary election magnetic system work When making range, the smaller strongly magnetic material of average grain diameter is captured and be attached on the hypodermis belt surface of magnetic separation belt by magnetic field, and Average grain diameter it is larger be then covered in the smaller surface of material of grain size.The magnetic material being attracted on magnetic separation belt is transported to During the relatively weak magnetic place of primary election magnetic system, grain size larger magnetic material in part will be fallen on since its own gravity is more than magnetic attraction On charging gear, when the magnetic material of whereabouts is delivered to next area compared with high-intensity magnetic field by charging gear, the larger magnetism of grain size Material can be picked up again, in this way, constantly picking up-falling-process picked up to magnetic material by primary election magnetic system solves magnetic Property material disk pack wrap up in magnetic clutch it is miscellaneous the problem of so that the concentrate grade that magnetic separation belt sorts out greatly promotes.
Further, it in order to which the material picked up is enable to realize overturning on magnetic separation belt, is wrapped up in preferably solving disk pack With magnetic clutch it is miscellaneous the problem of, primary election magnetic system is made of multiple small magnetic systems, magnetic field intensity between two neighboring small magnetic system it is different or Magnetic pole is different.
Further, in order to which selected magnetic system is enable to realize the sorting of strong magnetic and weak magnetic, with solve disk pack wrap up in it is miscellaneous with magnetic clutch Problem, selected magnetic system include the different field regions of multiple magnetic field intensities.When material is transported to the lower section of selected belt, due to The alternating magnetic field that selected magnetic system the provides field regions different with multiple magnetic field intensities of distribution, magnetic material is in the work of alternating magnetic field Overturning will be generated under, under the action of resultant force, rollover effect is preferable, so as to magnetic material and non-magnetic material by before Between due to magnetic coagulation generate magnetic clutch it is miscellaneous break up, non-magnetic material eventually disengages from magnetic separation belt, and magnetic material then continues to be attached to On magnetic separation belt, until being detached from magnetic field range.
Further, in order to which selected magnetic system is enable preferably to solve the problems, such as that magnetic clutch is miscellaneous and disk pack is wrapped up in, selected magnetic system is by multiple Small magnetic system is formed, and the magnetic field intensity between two neighboring small magnetic system is different or magnetic pole is different.
Further, in order to which selected magnetic system is enable to obtain alternating magnetic field, selected magnetic system is fixedly connected with vibration source, vibration source Alternating magnetic field is provided for selected magnetic system.
Further, vibration source provides the horizontal vibration amplitude of 0~40mm and the vertical amplitude of 0~15mm for selected magnetic system.
Further, charging gear includes a ribbon conveyer, and the lower section of ribbon conveyer conveying end is equipped with tailing mouth, The lower section of the magnetic material delivery end of selected magnetic system is equipped with concentrate mouth.
Further, the adjustable cutting plate in position is installed, tailing mouth is with concentrate mouth by dividing between concentrate mouth and tailing mouth Flitch realizes material isolation.
As a kind of alternative, the conveying end of ribbon conveyer is equipped with Pao Wei mechanisms, under the throwing tail end of Pao Wei mechanisms Side is equipped with tailing mouth, and the magnetic delivery end of Pao Wei mechanisms is equipped with recovery port.
In conclusion by adopting the above-described technical solution, compared with existing belt dry-type magnetic extractor, of the invention is beneficial Effect is:
1st, charging gear and magnetic separation belt can be realized adjustable, and can preferably obtain higher belt speed so that magnetic separator Processing capacity it is very big;
2nd, the grade of selected mineral of the invention can reach 0~25mm, magnetic separation excellent effect;
3rd, the selected magnetic system for the alternating magnetic field being equipped with adequately solves the magnetic material and nonmagnetics caused by magnetic coagulation Inclusion Problem, make concentrate grade close to wet separation;
4th, the setting of primary election magnetic system and frequency, the setting collective effect of the selected magnetic system of adjustable amplitude so that tailing product Potential energy fully effectively adjusts and control, and the concentrate grade of acquisition is high, and magnetic material grade is substantially reduced in tailing.
Description of the drawings
Fig. 1 is a kind of belt dry-type magnetic extractor structure diagram of the present invention;
Fig. 2 is the belt dry-type magnetic extractor conveying end of the present invention and magnetic material delivery end position view;
Fig. 3 is the primary election magnetic system fundamental diagram of the belt dry-type magnetic extractor of the present invention;
Fig. 4 is the selected magnetic system fundamental diagram of the belt dry-type magnetic extractor of the present invention;
Fig. 5 is another situation of the belt dry-type magnetic extractor of the present invention.
It is marked in figure:1 is housing, and 2 be feed inlet, and 3 be charging gear, and 4 be magnetic separation belt, and 5 be primary election magnetic system, and 6 be essence Magnetic system is selected, 7 be small magnetic system, and 8 be vibration source, and 9 be tailing mouth, and 10 be concentrate mouth, and 11 be cutting plate, and 12 be roller, and 13 be conveying Belt, 14 be Pao Wei mechanisms, and 15 be recovery port, and 16 be belt conveyor, and 17 be magnetic material delivery end, and 18 be magnetic material, 19 For non-magnetic material.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Embodiment one
As depicted in figs. 1 and 2, a kind of belt dry-type magnetic extractor, it includes:
Housing 1 positioned at the outside of entire magnetic separator, for covering all parts in magnetic separator, plays protection magnetic separation Machine and the closed operation of realization.
Charging gear 3, the top side of housing 1 are equipped with feed inlet 2, and the lower section of feed inlet 2 is equipped with charging gear 3, i.e. object Material is directly fallen in by feed inlet 2 on charging gear 3, and charging gear 3 includes a ribbon conveyer, and ribbon conveyer includes two A roller 12 and the belt conveyor 13 of a circular flow on two rollers, one in two rollers 12 is drive roll Cylinder, another is driven roller.Active roll tube can be electronic roller, such as oil injection type roller or with common roller Electronic roller is replaced with motor acceleration and deceleration machine, belt conveyor 13 can be then high-strength nonmagnetic belt.It is filled along feed 3 material conveying direction is put, charging gear 3 is again including input terminal and conveying end 16, as shown in Fig. 2, outside conveying end 16 Dotted line area defined is to convey the unloading range of end 16.Ribbon conveyer conveys material, i.e. ribbon conveyer along the right Roller 12 rotate clockwise, ribbon conveyer is input terminal close to the side of feed inlet 2, is far from the side of feed inlet 2 Convey end 16.In addition, the feeding coal of charging gear 3, delivery rate, feed thickness of feed layer can adjust according to actual needs.
Concentration equipment, concentration equipment are located at the top of charging gear 3, and concentration equipment includes a magnetic separation belt 4, magnetic separation skin Adjustable with 4 belt speed, magnetic separation belt 4 includes two rollers 12, magnetic separation belt 4 on two rollers 12 and circular flow, One in two rollers 12 is active roll tube, another is driven roller.Active roll tube can be electronic roller, such as oil cooling Formula roller or electronic roller is replaced with common roller and motor acceleration and deceleration machine, magnetic separation belt 4 can be then high-strength Spend non magnetic belt.Primary election magnetic system 5 and selected magnetic system 6, the rotation direction of the roller 12 of magnetic separation belt 4 are equipped in magnetic separation belt 4 It is counterclockwise rotated with the rotation direction of the roller 12 of charging gear 3 on the contrary, doing.
Primary election magnetic system 5, the magnetic field intensity range of primary election magnetic system 5 cover the material on charging gear 3, in other words, feed For device 3 when conveying material, the material of 13 top of belt conveyor of charging gear 3 can enter the magnetic field range of primary election magnetic system 5, And the magnetic material 18 in material can be drawn onto by primary election magnetic system 5 on magnetic separation belt 4, i.e., primary election magnetic system 5 is on charging gear 3 Material carry out magnetic and nonmagnetic crude separation.As shown in figure 3, primary election magnetic system 5 can be fixedly connected in magnetic separation belt 4, Movable to be connected in magnetic separation belt 4, i.e. the position of primary election belt 5 is adjustable, to adapt to needs of the different material to magnetic field intensity. The output end 16 of charging gear 3 can be placed in the magnetic field range of primary election magnetic system 5, also can be more than the magnetic field range of primary election magnetic system 5, That is the output end 16 of charging gear 3 is placed in the range of the magnetic separation of selected magnetic system 6, but do not enter the magnetic material of selected magnetic system 6 Unloading range, as shown in Fig. 2, the dotted line area defined outside magnetic material delivery end 17 is the magnetic material of selected magnetic system 6 Expect unloading range.
In order to which primary election magnetic system 5 is enable to realize the sorting of strong magnetic and weak magnetic, to a certain extent, solution disk pack is wrapped up in and magnetic clutch The problem of miscellaneous, primary election magnetic system 5 include the different field regions of multiple magnetic field intensities, work when magnetic material 18 enters primary election magnetic system 5 During range, the smaller magnetic material of grain size is captured and be attached on the hypodermis belt surface of magnetic separation belt 4 by magnetic field, and average grain diameter Larger is then covered in the smaller surface of material of grain size.The magnetic material 18 being attracted on magnetic separation belt 4 is transported to primary election During the relatively weak magnetic place of magnetic system 5, grain size larger magnetic material 18 in part will be fallen on since its own gravity is more than magnetic attraction On charging gear 3, when the magnetic material 18 of whereabouts is delivered to next area compared with high-intensity magnetic field by charging gear 3, grain size is larger Magnetic material can be picked up again, in this way ,-falling-process picked up is constantly picked up to magnetic material 18 by primary election magnetic system 5, It is miscellaneous with magnetic clutch to solve the problems, such as that 18 disk pack of magnetic material is wrapped up in so that the concentrate grade that magnetic separation belt 4 sorts out greatly promotes.
In order to which the material picked up is enable to realize overturning on magnetic separation belt 4, wrapped up in and magnetic clutch with preferably solving disk pack The problem of miscellaneous, primary election magnetic system 5 are made of multiple small magnetic systems 7, and small magnetic system 7 can be made of permanent-magnet material, also can be by electromagnetic material It forms, meanwhile, the magnetic field that the magnetic field intensity between two neighboring small magnetic system 7 can be between difference or two neighboring small magnetic system 7 The size of intensity is identical, but magnetic pole is different, as shown in figure 3, the magnetic field intensity range of primary election magnetic system 5 should in 800-8000Gs, with Ensure that the magnetic material 18 of the overwhelming majority can be picked up.
Selected magnetic system 6, along the conveying direction of material, selected magnetic system 6 be set on primary election magnetic system 5 the right, i.e., with primary election magnetic It is 5 to be set up in parallel successively, there are gap between selected magnetic system 6 and primary election magnetic system 5, and the magnetic field range of selected magnetic system 6 and primary election The magnetic field range of magnetic system 5 is overlapped mutually, so that the material that primary election magnetic system 5 picks up, when being conveyed through magnetic separation belt 4, material can Continue absorption on magnetic separation belt 4, and leave primary election magnetic system 5 and enter in selected magnetic system 6, realization seamlessly transits.As shown in figure 4, The position of selected magnetic system 6 is adjustable, and in continually changing state, and the power of variation is to be secured to the vibration source of connection 8, under the action of vibration source 8, selected magnetic system 6 obtains alternating magnetic field.For selected magnetic system 6 itself, with primary election magnetic system 5 one Sample, it is magnetic with nonmagnetic sorting in order to which selected magnetic system 6 is enable to realize, with solve the problems, such as disk pack wrap up in it is miscellaneous with magnetic clutch, it is selected Magnetic system 6 includes the different field regions of multiple magnetic field intensities, when material is transported to the lower section of selected magnetic system 6, due to selected magnetic It is the alternating magnetic field of the 6 offers field regions different with multiple magnetic field intensities of distribution, magnetic material 18 is in the effect of alternating magnetic field Under will generate overturning, and rollover effect is preferable, so as to will before between magnetic material 18 and non-magnetic material 19 due to magnetic coagulation The magnetic clutch of generation is miscellaneous to break up, and non-magnetic material 19 eventually disengages from magnetic separation belt 4, and magnetic material 18 then continues to be attached to magnetic separation belt On 4, until being detached from magnetic field range.
Similarly, in order to which selected magnetic system 6 is enable preferably to solve the problems, such as that magnetic clutch is miscellaneous and disk pack is wrapped up in, selected magnetic system 6 is by multiple Small magnetic system 7 is formed, and small magnetic system 7 can be made of permanent-magnet material, can be also made of electromagnetic material, meanwhile, two neighboring small magnetic system 7 Between magnetic field intensity can be between different or two neighboring small magnetic system 7 magnetic field intensity size it is identical, but magnetic pole phase It is different, as shown in figure 4, the magnetic field intensity range of selected magnetic system 6 should should be 0-120HZ in 200-5000Gs, the range of alternative frequency, The magnetic field of i.e. selected magnetic system 6 is preferably low frequency alternating magnetic field, preferably to solve the problems, such as that magnetic clutch is miscellaneous and disk pack is wrapped up in.
Vibration source 8, vibration source 8 are fixedly connected with selected magnetic system 6, and selected magnetic system 6 can obtain 0-40mm's by vibration source 8 The vertical amplitude of horizontal vibration amplitude and 0-15mm, specific amplitude size, then magnetic field intensity determines according to needed for practical material.
Tailing mouth 9, tailing mouth 9 are located at the lower section of charging gear output end 16, and in other words, primary election magnetic system 5 will be magnetic After material 18 picks up, the non-magnetic material 19 remained on charging gear 3 then throws tail extremely by the output end 16 of charging gear 3 Tailing mouth 9, tailing mouth 9 not only collect the throwing tail material from charging gear 3, can also collect and be sub-elected from selected magnetic system 6 Non-magnetic material 19.
Concentrate mouth 10, concentrate mouth 10 are located at the right of tailing mouth 9, i.e. the magnetic material delivery end 17 positioned at selected magnetic system 6 Lower section, for collecting the magnetic material 18 that selected magnetic system 6 sorts out, in order to prevent during magnetic separation, non-magnetic material It is fallen into concentrate mouth 10 during 19 disengaging magnetic separation belt 4, cutting plate 11, tailing mouth 9 and essence is equipped between concentrate mouth 10 and tailing mouth 9 Mine mouth 10 realizes the isolation of magnetic material 18 and non-magnetic material 19 by cutting plate 11.
Cutting plate 11, cutting plate 11 is located at the intersection on 10 top of 9 top of tailing mouth and concentrate mouth, magnetic material is isolated Material of altering between 18 and non-magnetic material 19 influences, and achievees the effect that preferably collection material, meanwhile, the position of cutting plate 11 can It is adjusted according to actual conditions, to improve adaptability.
The operation principle of the belt dry-type magnetic extractor of above-described embodiment is as follows:Material is given through feed inlet 2 to charging gear 3 Material device 3 by material is evenly laid out, the stable, lower section of primary election magnetic system 5 that is continuously fed forward in magnetic separation belt 4, by It is more than the gravity of material to the magnetic field force of material in primary election magnetic system 5, all bands are magnetic under the action of 5 high-intensity magnetic field of primary election magnetic system Material and since the non-magnetic material 19 that magnetic coagulation is mixed in magnetic material 18 is above drawn onto on magnetic separation belt 4, And remaining non-magnetic material 19 is delivered directly to tailing mouth 9 by charging gear 3 and collects;The material being attracted on magnetic separation belt 4 The lower section of selected magnetic system 6 is transported to by magnetic separation belt 4, since selected magnetic system 6 provides alternating magnetic field, magnetic material 18 is low Overturning will be generated under the action of frequency alternating magnetic field, thus will be before between magnetic material 18 and non-magnetic material 19 due to magnetic coagulation The magnetic clutch of generation is miscellaneous to break up, and non-magnetic material 19 is just only fallen to tailing mouth 9 by gravity and collected, and magnetic material 18 is still The concentrate mouth to move forward under the frictional force effect provided in magnetic field force, gravity and magnetic separation belt 4 at no magnetic field force 10 tops, that is, reach the magnetic material delivery end 17 of selected magnetic system 6, after final magnetic material 18 takes off magnetic, magnetic under the effect of gravity Property material 18 falls into concentrate mouth 10 and collects.
Embodiment two
Embodiment two is identical with embodiment one, the difference is that, in charging gear 3, ribbon conveyer far from into The roller 12 of the side of material mouth 2 is magnetic roller cylinder, i.e., is equipped with Pao Wei mechanisms 14, Pao Wei mechanisms in the conveying end 16 of ribbon conveyer Tailing mouth 9 is equipped with below 14 throwing tail end, the magnetic delivery end of Pao Wei mechanisms 14 is equipped with recovery port 15.As shown in figure 5, belt is defeated The non-magnetic material on machine is sent when conveying end 16 by throwing tail, wherein the minute quantity magnetic material being mingled with is captured simultaneously by magnetic roller cylinder Absorption is on belt conveyor 13, and non-magnetic material is then collected by tailing mouth 9, and captured magnetic material follows belt conveyor 13 to transport Dynamic, after magnetic material is far from magnetic roller cylinder, the magnetic force that magnetic material is subject to is by dying down by force, until disappearing, magnetic material is detached from defeated It send belt 13 and falls to recovery port 15, recovery port 15 collects the magnetic material of leakage choosing.Pass through the conveying end to charging gear 3 16 are improved, and to recycle a small amount of magnetic material present in material when throwing tail of charging gear 3, further reduced in tailing The grade of magnetic material reduces the waste of resource.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of belt dry-type magnetic extractor, including housing(1), set on housing(1)The feed inlet on top(2), which is characterized in that into Material mouth(2)Lower section be equipped with charging gear(3), charging gear(3)Top be equipped with concentration equipment, concentration equipment include a magnetic Select belt(4), along charging gear(3)Conveying material direction, magnetic separation belt(4)Inside it is equipped with primary election magnetic system side by side successively(5)With Selected magnetic system(6), charging gear(3)Conveying end(16)Selected magnetic system is not entered(6)Magnetic material unloading range, primary election Magnetic system(5)Magnetic field range covering charging gear(3)On material, selected magnetic system(6)Magnetic field for alternating magnetic field, primary election magnetic system (5)With selected magnetic system(6)Magnetic field range be overlapped mutually, primary election magnetic system(5)Including the different field regions of multiple magnetic field intensities, essence Select magnetic system(6)Including the different field regions of multiple magnetic field intensities.
2. belt dry-type magnetic extractor as described in claim 1, which is characterized in that primary election magnetic system(5)By multiple small magnetic systems(7)Structure Into two neighboring small magnetic system(7)Between magnetic field intensity it is different or magnetic pole is different.
3. belt dry-type magnetic extractor as described in claim 1, which is characterized in that selected magnetic system(6)By multiple small magnetic systems(7)Structure Into two neighboring small magnetic system(7)Between magnetic field intensity it is different or magnetic pole is different.
4. belt dry-type magnetic extractor as claimed in claim 3, which is characterized in that selected magnetic system(6)It is fixedly connected with vibration source (8), vibration source(8)For selected magnetic system(6)Alternating magnetic field is provided.
5. belt dry-type magnetic extractor as claimed in claim 4, which is characterized in that vibration source(8)For selected magnetic system(6)There is provided 0 The horizontal vibration amplitude of~40mm and the vertical amplitude of 0~15mm.
6. the belt dry-type magnetic extractor as described in one of claim 1-5, which is characterized in that charging gear(3)Including a band Formula conveyer, ribbon conveyer conveying end(16)Lower section be equipped with tailing mouth(9), selected magnetic system(6)Magnetic material discharging End(17)Lower section be equipped with concentrate mouth(10).
7. belt dry-type magnetic extractor as claimed in claim 6, which is characterized in that concentrate mouth(10)With tailing mouth(9)Between pacify Equipped with the adjustable cutting plate in position(11), tailing mouth(9)With concentrate mouth(10)Pass through cutting plate(11)Realize material isolation.
8. belt dry-type magnetic extractor as claimed in claim 7, which is characterized in that the conveying end of ribbon conveyer(16)It is equipped with Pao Wei mechanisms(14), Pao Wei mechanisms(14)Throwing tail end below be equipped with tailing mouth(9), Pao Wei mechanisms(14)Magnetic delivery end set There is recovery port(15).
CN201610642751.2A 2016-08-09 2016-08-09 A kind of belt dry-type magnetic extractor Active CN106000636B (en)

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