CN1139432C - Water-spraying wet cylindrical permanent-magnet separator - Google Patents
Water-spraying wet cylindrical permanent-magnet separator Download PDFInfo
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- CN1139432C CN1139432C CNB991201213A CN99120121A CN1139432C CN 1139432 C CN1139432 C CN 1139432C CN B991201213 A CNB991201213 A CN B991201213A CN 99120121 A CN99120121 A CN 99120121A CN 1139432 C CN1139432 C CN 1139432C
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Abstract
The present invention relates to a water-spraying wet permanent magnetic drum magnetic separator which is magnetic separator with a separation box with a special function. The separation box has a long separation belt, the function that the bottom of aseparation surface sprays water, and the measure of separating coarse tailings and fine tailings. The magnetic separator is suitable for the magnetic separation of material with the graded range of-6mm, can complete the processes of the roughing separation, the concentration and the scavenging in the magnetic separation of material in one step and fully increases the grade and the recovery rate of magnetic products. The present invention has the advantages of reducing the usual wear problem of the magnetic separator, prolonging service life, simplifying production indexes, reducing production cost and increasing economic benefit.
Description
Technical field
The present invention relates to a kind of energy be suitable for-magnetic separating device of each grade material of 6mm.
Background technology
Existing Wet-type permanent magnet drum type magnetic separator is divided into according to separatory vessel structure difference: downstream-type (CTS), adverse current type (CTN), three types of half adverse current types (CTB).The characteristics of downstream-type magnetic separator are that ore pulp is consistent with the direction of motion of magnetic separator cylinder at the flow direction in minute constituency, the sorting band is short, the mine tailing discharge point is low, selected belt length, the chats of selected discharge can not return choosing again and directly enter mine tailing, thus the product grade height, and the rate of recovery is low, can only be applicable to selected, but thick (material 6mm) of its sorting.The characteristics of adverse current type magnetic separator are ore pulps by magnetic is to enter the branch constituency against the cylinder direction of motion near the center, ore pulp is in the process against the cylinder motion, magnetic material is inhaled, and to wear selected district in tube selected, the chats of choosing returns raw ore and selects, and mine tailing is discharged from behind, so the product recovery rate height, but selected band is short, concentrate grade is low, so again because the mine tailing discharge point is higher and slower against the motion of cylinder motion ore pulp, only be suitable for-sorting of 0.6mm fine particle stage material.To be ore pulp from the feed zone of separatory vessel bottommost roll up the characteristics of half adverse current type magnetic separator enters the branch constituency, ore pulp moves against cylinder in a minute constituency, mine tailing discharge point height, selected band is longer, the chats of concentrate is got back to raw ore and is selected, so product grade height, the rate of recovery are also high, but this machine only is suitable for the more fine fraction (0.2mm) magnetic separation of material.More than three types magnetic separator in actual production process, all have the more serious barrel surface and the wear problem of separatory vessel.
Summary of the invention
The objective of the invention is to overcome existing downstream-type, adverse current type, the existing deficiency of half adverse current type magnetic separator, concentrate their advantage, and the magnetic separation of a kind of can being applicable to of designing-each grade material of 6mm separates, can once finish in the material magnetic separation thick, smart, scan process, can improve the magnetic separator of product grade, the rate of recovery.
The objective of the invention is to realize in the following manner, water-spraying wet cylindrical permanent-magnet separator comprises that permanent magnetism is 2, cylinder 1, separatory vessel, separatory vessel have by selected 11, roughly select face 6, scan the low arc sorting faces in face 3 high backs that form, preceding.Roughly selecting on the face, be uniform-distribution with many row's water spray apertures 5 on selected, described water spray aperture is in the liquid lower part of processed ore pulp, low pressure tank 13 selected 11, roughly select below the face 6, between low pressure tank 13 and the feed box 8 concentrate hopper 7 is arranged, the duck shape of feed box bottom chews 12 by passing low pressure tank 13 behind the forward direction, from selected 11, roughly select under the line of demarcation of face 6, enter branch constituency 4 against cylinder 1 direction of motion.
Roughly select face 6 and scan thick tail passage is arranged between the face 3, the plug-in unit 26 that blocking channel is arranged in the thick tail passage, under the thick tail passage thick boot 15 is arranged, thick boot downside has scouring sluice 17, the end that thick tail mouth 16 is arranged, scan under face 3 outlets thin boot 27 is arranged, thin boot downside has scouring sluice 19,, there is thin tail mouth 18 at the end, upside has overfall 25, slightly, thin tail mouth 16,18 usefulness connecting plates 28 connect, and clip two-sided weight 20 between described thick, the thin tail mouth, weight passes through connecting rod 21 and is connected with buoyancy aid 22 in the buoyancy tank 23, hat inner cap 24 is arranged on the buoyancy tank 23, and lid has annular sieve aperture week.
Up big and down small, the special water box 29 that the bottom is taper is provided with overfall 38, overflow launder 39, the delivery port 31 that the water inlet 14 of water tank 13 links to each other, and the tangential water inlet pipe 36 that connects pressure water source is arranged at the bottom, permanent magnet 37 is housed in this water inlet pipe, and, there is mudhole 35 at the described water tank awl end.
Description of drawings
Fig. 1 facade sectional structure of the present invention schematic diagram.
The A-A of Fig. 2 Fig. 1 is to cutaway view
Fig. 3 special water box structural representation
The specific embodiment
This water-spraying wet cylindrical permanent-magnet separator exemplary construction is shown in above-mentioned accompanying drawing.The present invention is described in detail in detail with reference to the accompanying drawings.
With reference to Fig. 1, magnetic separation cylinder 1, the permanent magnetism that this magnetic separator adopts is that 2 structure, material are identical with existing Wet-type permanent magnet drum type magnetic separator.Vary in size according to cylinder, requiring the disk pack angle is about 123 °-130 °, 0 °-10 ° of magnetic declination.One of difference of this magnetic separator is the structure of separatory vessel, the sorting face of its separatory vessel is that a preceding high back is low, successively by selected 11, roughly select face 6, scan face 3 and form before the low arc sorting face in high back, described selected, roughly select face, the face of scanning is respectively arc surface.Described selected, scan the face arc surface right central angle be 30 °, described roughly select the face arc surface right central angle be 70 °.Roughly select on the face, selected face is uniform-distribution with many row's water spray apertures 5.Its water spray aperture is in the liquid lower part of processed ore pulp.Feed box 8 wide and flat duck shapes chew 12 from low pressure tank 13 dead aheads passing low pressure tank backward from the horizontal by 5 °-10 ° the gradient, from smart, roughly select and lead to branch constituency 4 under the face line of demarcation.
Thick tail passage thick boot 15 down with scan at the bottom of the face outlet thin boot down 27 casees height together, and connect thick tail mouth 16, thin tail mouth 18 respectively, the tailings discharging self-con-tained unit of forming by weight 20, connecting rod 21, buoyancy aid 22, buoyancy tank 23, hat inner cap 24 between two boots, control tailings discharging speed is to prevent emptying of sorting district and deposition.Hat inner cap 24 is arranged on the buoyancy tank, and the lid periphery has the wide annular sieve aperture of 2mm that is, the overflow of discharging from overfall 25 enters the buoyancy tank 23 thus, and is discharged by the outlet pipe of going to the bottom.
With reference to Fig. 2, thick tail mouth 16, thin tail mouth 18 are connected by two connecting plates 28, form a vertical square space between two connecting plates and two tail mouth pelvic outlet planes, and the two-sided weight 20 of tailings discharging self-con-tained unit can be in this space easy on and off slip.
With reference to Fig. 3, special water box 29 formed shape from top to bottom is followed successively by great circle cylinder 30, big taper seat 32, roundlet cylinder 33, the roundlet conical surface 34.Mudhole 35 is arranged under the roundlet conical surface, and the tangential water inlet pipe 36 on the roundlet cylinder connects pressure water source, and the outlet pipe 31 on the great circle cylinder links to each other with the water inlet 14 of low pressure tank 13, supplies water to low pressure tank.
The effect of special water box is to magnetize, remove thick to the water that enters low pressure tank, to prevent that magnetic coagulation body and other coarse grain from stopping up water spray aperture 5, the high and low position of special water box on fixed support is adjustable, its minimum altitude should make its overfall 38 exceed more than the interior liquid level 10cm of separatory vessel, to prevent because of the water spray strength deficiency of water spray aperture 5 ore in sand form in branch constituency 4 being stopped up it.
This magnetic separator should be according to the raw meal particle size size before producing, determines whether in thick tail passage, to insert plug-in unit 26, if selected be-the thin material of 1mm then should insert plug-in unit, stop up thick tail passage; The weight of mentioning self-con-tained unit makes self-con-tained unit inoperative; Select maximum thin tail mouth, seal thick tail mouth, turn off the scouring sluice 17 of thick boot 15 downsides.As what be selected in is that coarse-grained material then should take out the plug-in unit in the thick tail passage, put down weight, recover the effect of self-con-tained unit, and select the width ratio of suitable thick, thin tail mouth, under the situation about in guaranteeing branch constituency 4, not depositing, select the little thick tail mouth of width, to improve the rate of recovery of magnetic product as far as possible.Selected material is thick more, and thick tail mouth is corresponding wide more.This magnetic separator is applicable to-magnetic separation of the material of each grade scope of 6mm separates.
Produce beginning, should open special water box water inlet, thickness tailings flushing water, concentrate flushing water successively when thick material is selected, restart cylinder 1.Wait to scan the district and occur beginning feed after the overflow, ore pulp enters feed box 8 by minute pipe 9, enters branch constituency 4 through chewing 12 every ballast screen 10 by duck shape.Ore pulp moves against cylinder, wherein the magnetic thing is 3 to be adsorbed in drum surface by permanent magnetism, entering selected back, selected district with cylinder is discharged by the forward position, nonmagnetics (being mine tailing) moves backward with ore pulp, in the running, because the impact suspension effect of water spray aperture 5 ejection water has been strengthened the mine tailing in the ore pulp by the thick thin down orderly layering of.When ore pulp moved to thick tail passage, lower floor's coarse grain mine tailing and the thin mine tailing of minority drained into following thick boot 15 by thick tail passage, and the thin mine tailing in upper strata continues to drain into thin boot 27 through scanning the district with overflow backward.
After producing beginning, the overflow of the thin boot of tailings discharging self-con-tained unit utilization begins to start, overflow enters buoyancy tank 23 by inner cap 24 peripheries, discharge from buoyancy tank 23 beneath outlet pipes, because the variation of overflow makes buoyancy aid 22 fluctuate with the fluctuation of liquid level in the buoyancy tank, weight easy on and off under the drivening rod 21 slides, thereby change effective discharge area of thick, thin tail mouth, control the mass rate of emission and the feed admission velocity balance of mine tailing thus, guarantee not emptying in the branch constituency 4, do not deposit.
Material is in entering the assorting room of this magnetic separator, except that with existing Wet-type permanent magnet drum type magnetic separator in the same being subjected to the sucking action of magnetic system and the cleaning action that magnetic rolling produces, also be subjected to the water spray group's of many row's apertures ejection percussion in addition, this water spray group forms " springing up layer " of being close to " arc " shape sorting face." to spring up floor " have three: the first, the flow of slurry that feeds to be disperseed fully, suspend under the effect of " springing up floor " in the effect of roughly selecting the district, increased the chance that magnetic particle is adsorbed to drum surface, helps improving the rate of recovery of magnetic thing; The second, when " springing up " effect fed through to drum surface, the nonmagnetics that helps being mingled with in the drum surface magnetic thing was cleaned out, can improve the rough concentrate grade of roughly selecting the district; The 3rd, " springing up layer " has increased the suspension degree of ore pulp, significantly reduce mine tailing and be deposited on the phenomenon of roughly selecting the lowest point, district, strengthened the mass rate of emission of mine tailing, this is particularly important for coarse-grained material, and the good flow of slurry of while suspension has also reduced the wearing and tearing to the barrel surface of the sorting cambered surface of separatory vessel and magnetic separator." the springing up floor " in selected district occurs in the liquid lower part in selected district, and it mainly acts on is the concentrate layer of flushing drum surface.Upward the ore in sand form layer is thin because of selected, and is little to " springing up " resistance, and the strength of " springing up " flushing drum surface is big, so very strong selected effect is arranged.Be rinsed the chats that gets off and get back to and roughly select Qu Zaixuan, so strengthen the grade and the rate of recovery that " springing up " strength can improve magnetic product simultaneously within the specific limits.
Granularity is thick more, and Magnetic Isolation is fast more, improve the rate of recovery and mainly consider to prolong fine-graded sorting strip length; And sorting of coarse-grained material then requires the last person smooth.This water-spraying type magnetic separator is set up and is scanned the district, and thick, scan coarse grain last person passage be set between the district, considered that exactly above-mentioned 2 situations appear in the magnetic separation meeting of coarse fraction range materials.When selected material is the particulate scope, only needing increases the length of dividing the constituency, so designed thick tail channel card, is used to block passage, make all fines all by longly roughly selecting the district, scan the district, and under water spray group's effect, the grade of magnetic product, the rate of recovery are further enhanced.
From the above mentioned, water-spraying type magnetic separation function once finishes-in any grade range materials of the 6mm Magnetic Isolation thick, smart, scan process, when enlarging the feed particle size scope, the grade of magnetic product, the rate of recovery are fully improved.
In sum, this magnetic separation function is improved production target effectively, simplifies production procedure, reduces mechanical wear, reduces production costs, and increases economic efficiency.
Claims (5)
1, water-spraying wet cylindrical permanent-magnet separator, the cylinder (1) that comprises permanent magnetism system (2), separatory vessel, it is characterized in that separatory vessel has by selected (11), roughly select face (6), scan that face (3) forms, the low arc sorting face in preceding high back, roughly selecting on the face, be uniform-distribution with many row's water spray apertures (5) on selected, described water spray aperture is in the liquid lower part of processed ore pulp, low pressure tank (13) is selected (11), roughly select face (6) below, between low pressure tank (13) and the feed box (8) concentrate hopper (7) is arranged, the duck shape of feed box bottom is chewed (12) by passing low pressure tank (13) behind the forward direction, from selected (11), roughly select under the line of demarcation of face (6), enter branch constituency (4) against cylinder (1) direction of motion
Roughly select face (6) and scan thick tail passage is arranged between the face (3), the plug-in unit (26) that blocking channel is arranged in the thick tail passage, under the thick tail passage thick boot (15) is arranged, thick boot downside has scouring sluice (17),, there is thick tail mouth (16) at the end, scan under face (3) outlet thin boot (27) is arranged, thin boot downside has scouring sluice (19),, there is thin tail mouth (18) at the end, upside has overfall (25), and is thick, thin tail mouth (16,18) connect with connecting plate (28), described thick, clip two-sided weight (20) between the thin tail mouth, weight is connected with buoyancy aid (22) in the buoyancy tank (23) by connecting rod (21), hat inner cap (24) is arranged on the buoyancy tank (23), and lid has annular sieve aperture week
The special water box (29) that up big and down small, bottom is taper is provided with overfall (38), overflow launder (39), the delivery port (31) that the water inlet (14) of water tank (13) links to each other, the tangential water inlet pipe (36) that connects pressure water source is arranged at the bottom, permanent magnet (37) is housed in this water inlet pipe, mudhole (35) is arranged at the bottom of the awl of described water tank.
2, magnetic separator according to claim 1, it is characterized in that described selected, roughly select face, the face of scanning is respectively this arc surface, described selected, scan the face arc surface right central angle be 30 °, described roughly select the face arc surface right central angle be 70 °.
3, magnetic separator according to claim 1, it is characterized in that described thick tail mouth (16), thin tail mouth (18) is connected by two connecting plates (28), formation one vertical square space between two connecting plates and two tail mouth pelvic outlet planes, and two-sided weight slides up and down at this space free.
4, magnetic separator according to claim 1 is characterized in that described special water box (29) shape from top to bottom is followed successively by great circle cylinder (30), big taper seat (32), roundlet cylinder (33), the roundlet conical surface (34).
5, magnetic separator according to claim 4 is characterized in that described special water box overfall (38) exceeds more than the separatory vessel liquid level 10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991201213A CN1139432C (en) | 1999-12-14 | 1999-12-14 | Water-spraying wet cylindrical permanent-magnet separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991201213A CN1139432C (en) | 1999-12-14 | 1999-12-14 | Water-spraying wet cylindrical permanent-magnet separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1255410A CN1255410A (en) | 2000-06-07 |
| CN1139432C true CN1139432C (en) | 2004-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991201213A Expired - Fee Related CN1139432C (en) | 1999-12-14 | 1999-12-14 | Water-spraying wet cylindrical permanent-magnet separator |
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| Country | Link |
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| CN (1) | CN1139432C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441489B (en) * | 2011-11-10 | 2013-10-30 | 北京交通大学 | Annular gas-liquid interface jigging magnetic separation device |
| CN102441490B (en) * | 2011-11-10 | 2013-07-31 | 北京交通大学 | Gas-liquid interface jigging magnetic separation controllable annular device capable of continuously operating |
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1999
- 1999-12-14 CN CNB991201213A patent/CN1139432C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1255410A (en) | 2000-06-07 |
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