CN101306400B - High effective concentration magnetic separator for concentrating strongly magnetic mineral - Google Patents
High effective concentration magnetic separator for concentrating strongly magnetic mineral Download PDFInfo
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- CN101306400B CN101306400B CN2008100482511A CN200810048251A CN101306400B CN 101306400 B CN101306400 B CN 101306400B CN 2008100482511 A CN2008100482511 A CN 2008100482511A CN 200810048251 A CN200810048251 A CN 200810048251A CN 101306400 B CN101306400 B CN 101306400B
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Abstract
The invention relates to a device used for the condensation of strong magnetic mineral. An efficient condensation magnet separator used for the condensation of strong magnetic mineral is characterized in that the efficient condensation magnet separator comprises a feeding box, a guide plate, a circular cylinder, a permanent magnet, an unloading plate, a damper, a collecting bucket, a separation plate, a bottom box and a frame; the permanent magnet is arranged in the cavity of the circular cylinder, and an axle on the circular cylinder is connected with a transmission mechanism; the bottom box is arranged at the lower part of the circular cylinder, the separation plate is arranged between the circular cylinder and the bottom box, a separation groove is formed between the separation plate and the circular cylinder, and a overflow channel is formed between the separation plate and the bottom box; the feeding box is positioned on the left side of the circular cylinder, the guide plate is fixedly connected in the opening position of the feeding box, and the guide plate is positioned at the upper part of the separation groove; the collecting bucket is positioned on the right side of the circular cylinder, and the collecting bucket is fixedly connected with the frame; the unloading plate is positioned in the collecting bucket, the unloading plate and the circular cylinder are distributed in the tangential direction, and the unloading plate is fixedly connected with the frame. The condensation magnet separator has the advantages that the content of the product solids after the condensation is high, and the condensation effect is good.
Description
Technical field
The present invention relates to a kind of equipment that is used for condensation of strong magnetic mineral.
Background technology
The mineral processing in China brainstrust proposes to adopt " carrying iron falls assorted " technology to carry out " falling silicon (mixing) before the iron ", forms the theory of iron and steel enterprise's " group's interests maximization ", has promoted the fast development of technique of preparing and steel and iron industry.90% iron mineral is a magnetic iron ore in China's iron ore concentrate, carries iron and falls after iron ore concentrate after assorted must carry out thickening earlier, filters, thereby obtains final iron ore concentrate as iron-smelting raw material.
During producing, ore dressing, adopts the concentration basin (machine) (or claiming concentrator) of different model and different performance generally to sorting concentrating of back concentrate; To concentrating of strongly magnetic mineral (magnetite concentrate), because of magnetic iron ore has ferromagnetism, can adopt the method for magnetic separation to carry out thickening, to save the investment cost of building concentration basin and to build the place.How to dewater with the concentrator of magnetic separator as magnetic iron ore on the industrial production, more general enterprise adopts the separation operation magnetic separator simply to substitute and concentrates magnetic separator, does not add or lacks rinse-added water and realize concentrating of magnetite concentrate, improves the concentration of final magnetite concentrate product.
In implementing " carrying iron falls assorted " process, in order to improve the liberation degree of minerals of iron mineral, often to handle by fine grinding, the final size of general iron ore concentrate accounts for from-0.045mm and 60%～70% brings up to-and 0.045mm accounts for 75%～85%, in addition higher.Cause final products Separation of Solid and Liquid difficulty, increased the difficulty that concentrates with filtration operation.It is poor to produce used concentrated magnetic separator concentrated effect at present, and concentration is low, and disposal ability is less.
Summary of the invention
The object of the present invention is to provide a kind of efficient magnetic separator that concentrates that is used for condensation of strong magnetic mineral, this concentrated magnetic separator has the good characteristics of concentrated effect.
To achieve these goals, technical scheme of the present invention is: be used for the efficient magnetic separator that concentrates of condensation of strong magnetic mineral, it is characterized in that it comprises to ore deposit case, deflector, cylinder, permanent magnet, mine unloading plate, damping sheet, collection ore bucket, sorting plate, under casing, frame; In the cylinder is cavity, is provided with permanent magnet in the cavity of cylinder, and permanent magnet is fixedlyed connected with cylinder, and the two ends of the axle on the cylinder are linked to each other with frame by bearing respectively, and the axle on the cylinder links to each other with transmission mechanism; The below of cylinder is provided with under casing, and the upper surface of under casing is an arcwall face, and under casing is fixedlyed connected with frame; Be provided with sorting plate between cylinder and the under casing, sorting plate is positioned at the left part of under casing, sorting plate is an arc, sorting plate is fixedlyed connected with frame, constitute the sorting groove between sorting plate and the cylinder, leave delivery port between the lower end of sorting plate and the bottom of under casing, leave overfall between the upper end of sorting plate and the left upper end of under casing, constitute overflow ducts between sorting plate and the under casing; The left side of being positioned at cylinder for the ore deposit case fixedlys connected for the ore deposit case with frame, be fixedly connected with deflector for the exit of ore deposit case, and deflector is positioned at the top of sorting groove; The collection ore bucket is positioned at the right side of cylinder, and the collection ore bucket is fixedlyed connected with frame; Mine unloading plate is positioned at the collection ore bucket, and mine unloading plate becomes arranged tangential with cylinder, and mine unloading plate is fixedlyed connected with frame.
The invention has the beneficial effects as follows:
1, this efficient magnetic separator that concentrates utilizes magnetic force absorption, the product design height after the dehydration, effective.
2, this efficient strong magnetic force absorption of magnetic separator utilization, big barrel dliameter of concentrating utilizes part centrifugal force, tangential stripper and the dual discharging of damping sheet, and disposal ability is big, and product design height, concentrated effect after the dehydration are good.
3, utilize highfield, big gap that the material magnetic linkage is increased, the solid magnetic thing intensity of rolling is violent, and material time of staying on the cylindrical shell of cylinder 3 is long, and utilizes part centrifugal force all can quicken overflowing of difficult discharge moisture, and dehydrating effect is remarkable;
4, the cylinder rotating speed of this concentrated magnetic separator is adjustable continuously, simple to operate, use is flexible; And can be used for other thickening operation in the assorting room;
5, test shows: when the concentration for the treatment of material 15%～30%, raw meal particle size-0.045mm accounted for 75%～85% o'clock, through this efficient concentrate magnetic separator thickening after, concentration can reach 50%～75%.During actual the use, concentrate the rotating speed of magnetic separator according to material handling concentration and process lot size adjustment earlier, thereby obtain desired product design.
6, industrial practice shows: when raw meal particle size-0.045mm accounts for 77.31% left and right sides, pulp density before concentrating is 24.38%～28.37%, after originally efficient concentrated magnetic separator concentrates, the concentration of its dehydrating prods reaches 65.19%～67.57%, referring to table 1, as seen its concentrated effect is remarkable.
Table 1 dehydrating effect/% (quality)
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1-gives the ore deposit case, 2-deflector, 3-cylinder (or claiming cylinder), 4-permanent magnet, 5-mine unloading plate, 6-damping sheet, 7-collection ore bucket, 8-sorting groove, 9-under casing, 10-frame, 11-overfall.
The specific embodiment
As shown in Figure 1, be used for the efficient magnetic separator that concentrates of condensation of strong magnetic mineral, it comprises to ore deposit case 1, deflector 2, cylinder 3, permanent magnet 4, mine unloading plate 5, damping sheet 6, collection ore bucket 7, sorting plate, under casing 9, frame 10; In the cylinder 3 is cavity, be provided with permanent magnet 4 in the cavity of cylinder 3, permanent magnet 4 is fixedlyed connected with cylinder 3, and the two ends of the axle on the cylinder 3 are linked to each other with frame 10 (being that cylinder can rotate under the effect of transmission mechanism) by bearing respectively, and the axle on the cylinder 3 links to each other with transmission mechanism; The below of cylinder 3 is provided with under casing 9, and the upper surface of under casing 9 is an arcwall face, under casing 9 and frame 10 fixedly connected (being connected as welding or bolt); Be provided with sorting plate between cylinder 3 and the under casing 9, sorting plate is positioned at the left part of under casing 9, sorting plate is an arc, sorting plate and frame 10 fixedly connected (being connected) as welding or bolt, constitute sorting groove 8 between sorting plate and the cylinder 3, leave delivery port between the bottom of the lower end of sorting plate and under casing 9, leave overfall 11 (overflow water B from overfall 11 flow out) between the left upper end of the upper end of sorting plate and under casing 9, constitute overflow ducts (overflow ducts communicates with sorting groove 8 by delivery port) between sorting plate and the under casing 9; Ore deposit case 1 and frame 10 fixedly connected (being connected as welding or bolt) are given in the left side of being positioned at cylinder 3 for ore deposit case 1, and (connecting as welding or bolt) has deflector 2 to give the exit of ore deposit case 1 fixedly connected, and deflector 2 is positioned at the top of sorting groove 8; Collection ore bucket 7 is positioned at the right side of cylinder 3, collection ore bucket 7 and frame 10 fixedly connected (being connected as welding or bolt); Mine unloading plate 5 is positioned at collection ore bucket 7,3 one-tenth arranged tangential of mine unloading plate 5 and cylinder (becoming skewed), the upper end of mine unloading plate 5 and cylinder 3 be at a distance of 1mm～3mm (or the upper end of mine unloading plate be plasticity with drum surface contact), mine unloading plate 5 and frame 10 fixedly connected (as welding or bolt is connected).
The below of described mine unloading plate 5 is provided with damping sheet 6, and damping sheet 6 is positioned at collection ore bucket 7, and damping sheet 6 and cylinder 3 be 1mm～3mm apart, damping sheet 6 fixedly connected with the upper right side of under casing 9 (being connected as welding or bolt).
Described transmission mechanism can adopt drive pulley, driven pulley, belt, frequency control motor, driven pulley is located on the axle of cylinder 3, drive pulley is located on the output shaft of frequency control motor, and drive pulley, driven pulley are linked to each other by belt.The rotating speed of cylinder can pass through RHVC (frequency control motor) to be regulated continuously.Transmission mechanism also can adopt other form.
The diameter of described cylinder 3 is 600mm～1500mm.
The magnetic field intensity of described permanent magnet 4 is 250mT.
Yoke distance between the described permanent magnet 4 is 40mm～70mm.The course of work:
1, regulates the position of permanent magnet 4 as Fig. 1;
2, start the efficient magnetic separator that concentrates, the material of the relative cylinder of cylinder top rotates (turning clockwise as Fig. 1) in the same way;
3,, adjust the rotating speed of cylinder by the frequency converter of equipment configuration according to the concentration of waiting to concentrate material;
4, wait to concentrate ore pulp from give the ore deposit case through deflector to be given to the drum surface that concentrates magnetic separator with 20 °～45 ° of horizontal directions;
5, solid material is adsorbed on drum surface because of magnetic, and along with the motion of cylinder upwards promotes and rolls, the moisture in the material is further overflowed, and part moisture overflows because of centrifugal action will speed up, and the concentration of material further improves;
When 6, the magnetic retention material is through unloading area, unload through stopping of tangential direction mine unloading plate, the small part material stops through damping sheet, flows in the collection ore bucket, and concentrate A discharges from the collection ore bucket;
7, overflow water is discharged through overfall 11 from concentrating the magnetic separator bottom.
Operation principle:
1, magnetic field intensity is carried out thickening than conventional magnetic separator height with conventional sorting magnetic separator, and because of the requirement of magnetic iron ore sorting technology, general drum surface magnetic field is 155mT; This efficient magnetic field intensity that concentrates magnetic separator is brought up to 250mT, the magnetic field degree of depth of equipment surface has improved, and helps the formation and the growth of magnetic iron ore magnetic linkage, and magnetic linkage can increase 5mm～10mm, can effectively improve the device processes ability, and a superfine magnetic loss when preventing that the tailing water flow velocity is big;
2, strengthened yoke distance, suitably increased the disk pack angle of permanent magnet, the disk pack angle is generally 180 °～210 °.Yoke distance is increased to 40mm～70mm by the 15mm～25mm of sorting magnetic separator, and magnetic field just rises and falls significantly, and magnetic linkage rolls acutely, and intensity and number of times increase, and adheres to the water capacity when making the iron ore concentrate dehydration and easily gets rid of, and helps improving the material concentration after the dehydration;
3, drum diameter is big, linear range is long, prolonged the time of staying of iron ore concentrate at drum surface, the time of staying, the 0.3sec～0.6sec by the sorting magnetic separator brought up to 0.8sec～1.5sec (second, refer to that the solid magnetic material is from being adsorbed to cylinder to the time that breaks away from till the cylinder), and utilize centrifugal action can quicken in the material to adhere to and the overflowing of part adsorption moisture, help the raising of solid material concentration;
When 4, the magnetic retention material is through unloading area (not establishing the zone of permanent magnet 4 on the cylinder 3), because of material loses magnetic force and utilizes part inertia, unload through stopping of tangential direction mine unloading plate, the small part material stops through damping sheet and comes off, dual discharging guarantee helps the raising of disposal ability;
5, this machine is equipped with RHVC, and rotating speed is adjustable, realizes that the product design after the dehydration is adjustable continuously according to user's needs, simple to operate, uses flexibly;
6, this concentrated magnetic separator disposal ability is big, and the product design height after the dehydration, effective realizes carrying the dewatering operation that assorted reverse flotation iron concentrate or other strongly magnetic material fall in iron effectively; And can be used for other thickening operation in the separation operation process.
Claims (7)
1. the efficient magnetic separator that concentrates that is used for condensation of strong magnetic mineral is characterized in that it comprises to ore deposit case (1), deflector (2), cylinder (3), permanent magnet (4), mine unloading plate (5), damping sheet (6), collection ore bucket (7), sorting plate, under casing (9), frame (10); In the cylinder (3) is cavity, is provided with permanent magnet (4) in the cavity of cylinder (3), and permanent magnet (4) is fixedlyed connected with cylinder (3), and the two ends of the axle on the cylinder (3) are linked to each other with frame (10) by bearing respectively, and the axle on the cylinder (3) links to each other with transmission mechanism; The below of cylinder (3) is provided with under casing (9), and the upper surface of under casing (9) is an arcwall face, and under casing (9) is fixedlyed connected with frame (10); Be provided with described sorting plate between cylinder (3) and the under casing (9), sorting plate is positioned at the left part of under casing (9), sorting plate is an arc, sorting plate is fixedlyed connected with frame (10), constitute sorting groove (8) between sorting plate and the cylinder (3), leave delivery port between the bottom of the lower end of sorting plate and under casing (9), leave overfall (11) between the left upper end of the upper end of sorting plate and under casing (9), sorting plate and under casing constitute overflow ducts between (9); The left side of being positioned at cylinder (3) for ore deposit case (1) fixedlys connected for ore deposit case (1) with frame (10), be fixedly connected with deflector (2) for the exit of ore deposit case (1), and deflector (2) is positioned at the top of sorting groove (8); Collection ore bucket (7) is positioned at the right side of cylinder (3), and collection ore bucket (7) is fixedlyed connected with frame (10); Mine unloading plate (5) is positioned at collection ore bucket (7), and mine unloading plate (5) becomes arranged tangential with cylinder (3), and mine unloading plate (5) is fixedlyed connected with frame (10).
2. the efficient magnetic separator that concentrates that is used for condensation of strong magnetic mineral according to claim 1, it is characterized in that: the below of described mine unloading plate (5) is provided with described damping sheet (6), damping sheet (6) is positioned at collection ore bucket (7), damping sheet (6) and cylinder (3) are at a distance of 1mm～3mm, and damping sheet (6) is fixedlyed connected with the upper right side of under casing (9).
3. the efficient magnetic separator that concentrates that is used for condensation of strong magnetic mineral according to claim 1, it is characterized in that: described transmission mechanism can adopt drive pulley, driven pulley, belt, frequency control motor, driven pulley is located on the axle of cylinder (3), drive pulley is located on the output shaft of frequency control motor, and drive pulley, driven pulley are linked to each other by belt.
4. the efficient magnetic separator that concentrates that is used for condensation of strong magnetic mineral according to claim 1, it is characterized in that: the diameter of described cylinder (3) is 600mm～1500mm.
5. the efficient magnetic separator that concentrates that is used for condensation of strong magnetic mineral according to claim 1, it is characterized in that: the magnetic field intensity of described permanent magnet (4) is 250mT.
6. the efficient magnetic separator that concentrates that is used for condensation of strong magnetic mineral according to claim 1, it is characterized in that: the upper end of mine unloading plate (5) and cylinder (3) are at a distance of 1mm～3mm.
7. the efficient magnetic separator that concentrates that is used for condensation of strong magnetic mineral according to claim 1, it is characterized in that: the upper end of mine unloading plate is plasticity with drum surface and contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100482511A CN101306400B (en) | 2008-07-01 | 2008-07-01 | High effective concentration magnetic separator for concentrating strongly magnetic mineral |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100482511A CN101306400B (en) | 2008-07-01 | 2008-07-01 | High effective concentration magnetic separator for concentrating strongly magnetic mineral |
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| CN101306400A CN101306400A (en) | 2008-11-19 |
| CN101306400B true CN101306400B (en) | 2010-06-02 |
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| CN2008100482511A Expired - Fee Related CN101306400B (en) | 2008-07-01 | 2008-07-01 | High effective concentration magnetic separator for concentrating strongly magnetic mineral |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648163B (en) * | 2009-09-14 | 2011-08-03 | 武汉理工大学 | External annular sorting device |
| CN102091671A (en) * | 2010-11-23 | 2011-06-15 | 王奉令 | Method for using magnetic separator for dehydrating iron concentrate slurry |
| TWI472374B (en) * | 2012-09-05 | 2015-02-11 | Metal Ind Res & Dev Ct | The rolling device with inserting magnetic member and magnetic axle thereof |
| CN104399580B (en) * | 2014-10-29 | 2016-08-10 | 武汉理工大学 | A kind of laboratory magnetic separator being suitable to the sorting of particulate strongly magnetic material |
| CN106694218A (en) * | 2017-03-21 | 2017-05-24 | 南京凯通粮食生化研究设计有限公司 | Magnetic catalyst continuous separation equipment |
| CN108296016A (en) * | 2018-01-17 | 2018-07-20 | 武汉理工大学 | A kind of single layer groove body formula magnetic separator |
| CN108745628A (en) * | 2018-06-29 | 2018-11-06 | 刘树理 | Feed processing deironing apparatus |
| CN112156888A (en) * | 2020-09-16 | 2021-01-01 | 张超来 | High-precision intelligent magnetic separator capable of conveniently cleaning magnetic substances |
| CN115445767B (en) * | 2022-09-14 | 2023-05-23 | 承德星铄科技有限公司 | Multi-gradient parallel double-roller dry magnetic separator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1224449A (en) * | 1969-02-19 | 1971-03-10 | Bayer Ag | Washing and drying magnetisable material |
| US4686035A (en) * | 1985-07-24 | 1987-08-11 | Barnes Drill Co. | Cylindrical drum magnetic separator |
| CN2286074Y (en) * | 1996-08-28 | 1998-07-15 | 河南省科冠磁性材料股份有限公司 | Drum-type magnetic separator |
| CN2640602Y (en) * | 2003-07-03 | 2004-09-15 | 马鞍山市金力技术有限公司 | Wetting permanent-magnet magnetic separator with high recovery rate |
| CN2825113Y (en) * | 2005-10-12 | 2006-10-11 | 抚顺隆基磁电设备有限公司 | Concentrated magnetic separator |
-
2008
- 2008-07-01 CN CN2008100482511A patent/CN101306400B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1224449A (en) * | 1969-02-19 | 1971-03-10 | Bayer Ag | Washing and drying magnetisable material |
| US4686035A (en) * | 1985-07-24 | 1987-08-11 | Barnes Drill Co. | Cylindrical drum magnetic separator |
| CN2286074Y (en) * | 1996-08-28 | 1998-07-15 | 河南省科冠磁性材料股份有限公司 | Drum-type magnetic separator |
| CN2640602Y (en) * | 2003-07-03 | 2004-09-15 | 马鞍山市金力技术有限公司 | Wetting permanent-magnet magnetic separator with high recovery rate |
| CN2825113Y (en) * | 2005-10-12 | 2006-10-11 | 抚顺隆基磁电设备有限公司 | Concentrated magnetic separator |
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Granted publication date: 20100602 Termination date: 20120701 |