CN104874478A - Vibrating magnetic field screening machine - Google Patents
Vibrating magnetic field screening machine Download PDFInfo
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- CN104874478A CN104874478A CN201510290551.0A CN201510290551A CN104874478A CN 104874478 A CN104874478 A CN 104874478A CN 201510290551 A CN201510290551 A CN 201510290551A CN 104874478 A CN104874478 A CN 104874478A
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Abstract
The invention discloses a vibrating magnetic field screening machine which comprises a shell, a permanent magnetic system, a screen frame, a screen plate, a vibration isolation spring, a vibration excitation motor, a material distribution barrel, a distributor, a concentrate bin, a middling bin, a concentrate discharge valve, a middling discharge valve, a spiral discharge device and the like. The permanent magnetic systems are positioned on two sides of the shell; the screen frame is connected to the inner side of the shell through a vibration isolation spring; the sieve plate is obliquely fixed in the sieve frame; the excitation motor is fixed on the upper part of the screen frame; the distributing cylinder is arranged at the upper part of the shell, and the bottom of the distributing cylinder is connected with the distributing device; the spiral discharging device is fixed at the bottom of the concentrate bin. The method is suitable for the concentration of minerals such as magnetite, vanadium-titanium magnetite, roasted magnetite and the like, can effectively improve the concentrate grade, and has the advantages of low energy consumption, simple structure, strong adaptability, difficult blockage of sieve pores, convenient operation and maintenance and the like.
Description
Technical field
The present invention relates to a kind of magnetic separator technology, is a kind of oscillating magnetic field screening machine of design specifically.This equipment can be used for the selected of the mineral such as magnetic iron ore, vanadium titano-magnetite and roasting magnetic iron ore.
Background technology
At present, poor, thin, the hydridization trend of China's iron ore deposit is more and more serious, how to improve iron concentrate grade, reduces energy consumption, the emphasis direction of cost-saving Cheng Shi China iron ore beneficiation research.Magnetic agglomeration gravity separation method is the selected important method of magnetic iron ore, and the equipment utilizing the method to develop mainly contains magnetic agglomeration gravity separator, column magnetic separator and Magnetic field screening separator.
Magnetic agglomeration gravity separator is that comprehensive utilizating research institute of Ministry of Geology and Mineral Resources in 1984 is successful with the joint study of Shoudu Iron and Steel Co mining company.This machine adopts permanent magnetic system, its magnetic system cylindrically, there are 3 ~ 4 layers, be divided into interior magnetic system, middle magnetic system, outer magnetic system, every layer of magnetic patch is interrupted configuration, form the low uneven discontinuous stationary magnetic field of 0 ~ 15mT in interior magnetic system and middle magnetic system, two points of constituencies between middle magnetic system and outer magnetic system, sorting current feed a point constituency with certain pressure to water ring, start to sort process.Magnetite ore particles, under the synergy of the magnetic field force of change, ascending current power and self effective gravity, forms slight magnetic coagulation when entering point constituency; Magnetic coagulation enter without during field regions due to ascending current to ore pulp apply shear flushing action disperseed; Be with field regions downwards again, because the effect of magnetic field force forms again slight magnetic coagulation.Such magnetic coagulation be in infall process repeatedly disperse-reunite-dispersion state, sorting current wash away elutriation effect under be constantly purified, the monomer gangue be mingled with in magnetic coagulation and intergrowth are taken away by ascending current, become mine tailing; Magnetic coagulation after purifying continues to move downward becomes concentrate.The shortcoming of this equipment be coarse grain intergrowth and gangue can not be taken off, easily run black etc.
Column magnetic separator is the efficient magnetic-gravity separation equipment of a kind of novel electromagnetic that Anshan Iron & Steel College ore dressing teaching and research room succeeded in developing in early 1990s.Column magnetic separator adopts special power supply mechanism to make magnet exciting coil produce special magnetic field transformation mechanism in sorting space, repeated multiple times magnetic polymerization-dispersion-magnetic polymerization is carried out to ore pulp, can fully isolate in being mingled with in conventional magnetic plant product, lean intergrowth and monomer gangue.The magnetic induction intensity of column magnetic separator between 0 ~ 20mT, and can regulate according to the change of ore properties at any time, and the magnetic field in choosing point space cuts in and out, sequentially downwards, moves in circles, and cycle period also can regulate according to the change of ore properties at any time.Its Separation process: enter column magnetic separator middle and upper part by mine feeding bucket through mineral-feeding pipe to ore deposit ore pulp, magnetic-particle particularly monomer magnetic-particle under magnetic field force effect from top to bottom, reunite and disperse repeatedly to hocket, add the flushing of tangential ascending current from bottom to top, elutriation effect, make to be entrained in monomer gangue wherein and in, lean intergrowth drives by ascending current and rises, being overflowed by upper isopipe becomes mine tailing.Magnetite ore particles, comprises monomer magnetite ore particles and magnetic iron ore rich intergrowth, under the effect of magnetic field force downward continuously and magnetic linkage effective gravity, not by ascending current is rushed band, and is discharged by bottom concentrate ore discharge pipe and becomes high-grade magnetite concentrate.The shortcoming of this equipment is that water consumption is large, and energy consumption is high, and device height is higher.
Magnetic field screening separator is the Novel magnetite beneficiation patent equipment that Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS develops on the Magnetic field screening method basis of invention in 1994, and it is the new development in the selected field of weak magnetic after magnetic agglomeration gravity separation technique.Magnetic sieve is very easily mingled with gangue, the more difficult defect separating intergrowth mainly for traditional magnetic separator, magnetic iron ore is utilized magnetic iron ore to be magnetized into chain magnetic agglomerate in relatively uniform low-intensity magnetic field, increase magnetic iron ore and gangue intergrowth sinking speed is poor, difference in size, the screen cloth be arranged in magnetic field is utilized effectively to be separated with intergrowth by gangue, chain magnetic agglomerate becomes concentrate from discharge sieve, and gangue and intergrowth become chats through sieve aperture.This equipment, to the selected upgrading successful of magnetic iron ore, has that granularity is applied widely, water consumption is little, the high and low power consumption and other advantages of sharpness of separation, but its shortcoming is sieve aperture easily blocks, later stage screen cloth maintaining inconvenience.
In sum, be that this kind of low low-intensity magnetic field picking equipment of representative substantially solves the upgrading for many years of puzzlement China's iron ore and falls assorted problem with Magnetic field screening separator, but also there is energy-saving and cost-reducing effect to a certain extent, but also there is respective shortcoming.
Summary of the invention
For in prior art, Magnetic field screening separator sieve aperture holds susceptible to plugging shortcoming, the invention provides a kind for the treatment of capacity large, works continuously, the oscillating magnetic field screening machine of sieve plate self-cleaning.
To achieve these goals, the technical solution used in the present invention is: a kind of oscillating magnetic field screening machine, comprises the parts composition such as housing, permanent magnetic system, screen frame, sieve plate, isolation spring, shock electric machine, point barrel, distributing device, concentrate store, middle ore storage bin, concentrate blow-off valve, chats blow-off valve and discharge with endless screw device.It is characterized in that: described permanent magnetic system is positioned at housing both sides; Screen frame is connected to case inside by isolation spring; Sieve plate tilts to be fixed in screen frame; Shock electric machine is fixed on screen frame top; Divide barrel to be arranged at housing upper, be connected with distributing device bottom point barrel; Discharge with endless screw device is fixed on bottom concentrate store.
Shock electric machine adopts and is interrupted or continuously-running duty, and two shock electric machine synchronous backwards rotate, and the difficulty be blocked on sieve aperture sieves particle or sludge is subject to exciting force effect, departs from compass screen surface and enters middle ore storage bin.
Described sieve plate is evenly distributed along screen frame.
The compass screen surface of described sieve plate is parallel to the magnetic line of force of permanent magnetic system formation.
Described shock electric machine is arranged in screen frame two ends respectively, and synchronous backward rotates.
Compared with prior art:
1) adopt point barrel and a distributing device, ensure that ore pulp is evenly given on sieve plate.
2) shock electric machine synchronous backward rotates, and drives sieve plate vibration, effectively prevents screen cloth from blocking;
3) discharge with endless screw device effectively prevents concentrate store from blocking.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is sectional view of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of oscillating magnetic field screening machine, is made up of the parts such as housing 1, permanent magnetic system 2, screen frame 3, sieve plate 4, isolation spring 5, shock electric machine 6, point barrel 7, distributing device 8, concentrate store 9, middle ore storage bin 10, concentrate blow-off valve 11, chats blow-off valve 12 and discharge with endless screw device 13.It is characterized in that: described permanent magnetic system 2 is positioned at housing 1 both sides; Screen frame 3 is connected to inside housing 1 by isolation spring 5; Sieve plate 4 tilts to be fixed in screen frame 3; Shock electric machine 6 is fixed on screen frame 3 top; Divide barrel 7 to be arranged at housing 1 top, be connected with distributing device 8 bottom point barrel 7; Discharge with endless screw 13 device is fixed on bottom concentrate store 9.Sieve plate 4 is evenly distributed along screen frame 3.The compass screen surface of sieve plate 4 is parallel to the magnetic line of force of permanent magnetic system 2 formation.Shock electric machine 6 is arranged in screen frame 3 two ends respectively, and synchronous backward rotates.
This oscillating magnetic field screening machine is for working continuously, operating procedure is as follows: during work, ore pulp is evenly fed on sieve plate through distributing device by a point ore chimney, trying one's best in uniform magnetic field, the particle be magnetized forms chain magnetic coagulation along magnetic line of force direction, from sieve rolling landing to concentrate store, discharge with endless screw device operates continuously in concentrate store, concentrate is discharged by concentrate blow-off valve, and the more weak particle of magnetic passes through sieve aperture smoothly, discharge from the both sides sieve, after entering middle ore storage bin, discharged by chats blow-off valve.Shock electric machine is interrupted or continuous operation, and the difficulty sieve particle be blocked on sieve aperture is subject to exciting force effect, departs from compass screen surface and enters middle ore storage bin.
Claims (4)
1. oscillating magnetic field screening machine, comprises the parts composition such as housing (1), permanent magnetic system (2), screen frame (3), sieve plate (4), isolation spring (5), shock electric machine (6), point barrel (7), distributing device (8), concentrate store (9), middle ore storage bin (10), concentrate ore discharge valve (11), chats ore discharge valve (12) and discharge with endless screw device (13).It is characterized in that: described permanent magnetic system (2) is positioned at housing (1) both sides; Screen frame (3) is connected to housing (1) inner side by isolation spring (5); Sieve plate (4) tilts to be fixed in screen frame (3); Shock electric machine (6) is fixed on screen frame (3) top; Divide barrel (7) to be arranged at housing (1) top, point barrel (7) bottom is connected with distributing device (8); Discharge with endless screw device (13) is fixed on concentrate store (9) bottom.
2. oscillating magnetic field screening machine according to claim 1, is characterized in that: described sieve plate (4) is evenly distributed along screen frame (3).
3. oscillating magnetic field screening machine according to claim 1, is characterized in that: the compass screen surface of described sieve plate (4) is parallel to the magnetic line of force that permanent magnetic system (2) is formed.
4. oscillating magnetic field screening machine according to claim 1, is characterized in that: described shock electric machine (6) is arranged in screen frame (3) two ends respectively, and synchronous backward rotates.
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| CN201510290551.0A CN104874478A (en) | 2015-06-01 | 2015-06-01 | Vibrating magnetic field screening machine |
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| CN201510290551.0A CN104874478A (en) | 2015-06-01 | 2015-06-01 | Vibrating magnetic field screening machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689126A (en) * | 2016-05-11 | 2016-06-22 | 河北省地矿中心实验室 | Mineral processing process for oolitic hematite |
| CN107716097A (en) * | 2017-10-24 | 2018-02-23 | 广西联壮科技股份有限公司 | Magnetic ball dynamic adsorption deironing mechanism |
| CN108558459A (en) * | 2018-04-08 | 2018-09-21 | 山东省农业科学院农产品研究所 | A kind of production equipment of edible fungi residue composite fertilizer |
| CN113399112A (en) * | 2021-06-01 | 2021-09-17 | 辽宁科技大学 | Permanent magnet drum type magnetic separator with mechanical dispersing function |
| CN113492058A (en) * | 2021-06-01 | 2021-10-12 | 辽宁科技大学 | Mechanical swing dispersing device for permanent magnet drum type magnetic separator |
| CN115283135A (en) * | 2022-07-25 | 2022-11-04 | 楚能新能源股份有限公司 | High-efficient deironing device of battery thick liquids |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689126A (en) * | 2016-05-11 | 2016-06-22 | 河北省地矿中心实验室 | Mineral processing process for oolitic hematite |
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| CN107716097A (en) * | 2017-10-24 | 2018-02-23 | 广西联壮科技股份有限公司 | Magnetic ball dynamic adsorption deironing mechanism |
| CN108558459A (en) * | 2018-04-08 | 2018-09-21 | 山东省农业科学院农产品研究所 | A kind of production equipment of edible fungi residue composite fertilizer |
| CN113399112A (en) * | 2021-06-01 | 2021-09-17 | 辽宁科技大学 | Permanent magnet drum type magnetic separator with mechanical dispersing function |
| CN113492058A (en) * | 2021-06-01 | 2021-10-12 | 辽宁科技大学 | Mechanical swing dispersing device for permanent magnet drum type magnetic separator |
| CN113492058B (en) * | 2021-06-01 | 2022-12-23 | 辽宁科技大学 | Mechanical swing dispersing device for permanent magnet drum type magnetic separator |
| CN115283135A (en) * | 2022-07-25 | 2022-11-04 | 楚能新能源股份有限公司 | High-efficient deironing device of battery thick liquids |
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Application publication date: 20150902 |
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