CN103752402B - A kind of circulation wet-type magnetic separation method - Google Patents
A kind of circulation wet-type magnetic separation method Download PDFInfo
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- CN103752402B CN103752402B CN201310744193.7A CN201310744193A CN103752402B CN 103752402 B CN103752402 B CN 103752402B CN 201310744193 A CN201310744193 A CN 201310744193A CN 103752402 B CN103752402 B CN 103752402B
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Abstract
The invention discloses a kind of wet type circulation magnetic selection method, magnetic selection method step: a. cleans removal of impurities; B. pre-sifted is filtered; C. feed; D. first time magnetic separation; E. first time opening and closing (crescent) slurry leakage hole; F. first time rotary water jet recovery; G. second time magnetic separation; H. second time opening and closing (crescent) slurry leakage hole; I. second time rotary water jet reclaims; J. move in circles magnetic separation; K. rotary slagging coutrol; L. reverse flotation.Device in the present invention adopts unique double cone loop structure, when forwarding diverse location under the driving of loop structure at drive unit, can realize river sand or metallic mortar circulates selected between two hollow cones.Overall process of the present invention is all controlled automatically by circuit, decreases the waste of human resources, solves the problem such as method for separating complexity, sorting long flow path, improves the validity of magnetic separation.
Description
Technical field
The present invention relates to a kind of wet magnetic separation field, particularly with selecting iron sand, the Wet-type electromagnetic separator rejecting iron tramp and magnetic selection method in the mixed liquor from river sand, ore pulp, nonmetal fine particle and iron tramp.
Background technology
Magnetic separation is the main beneficiation method of process iron ore.Metallic ore especially iron ore, after ore dressing, improves grade, reduces impurity content, is of value to smelting process.According to the practice of China, iron concentrate grade often improves 1%, and the capacity factor of a blast furnace can increase by 2% ~ 3%, and coke consumption amount can reduce by 1.5%, and consumption of limestone amount can reduce 2%.Many non-ferrous metals and the mineral of rare metals have different magnetic.When not obtaining final concentrate with gravity treatment and flotation, available magnetic separation carries out sorting in conjunction with additive method.
Magnetic separation, except effective grade that can improve metallic ore, can also be rejected the harmful iron tramp in nonmetal raw material, so magnetic separation is one of operation important in nonmetal ore-dressing.Along with raising and the needs of resource regeneration of human environment protection consciousness, the recovery that magnetic method is widely used in slag and old metal with to be separated and in the process such as sewage disposal.
Wet magnetic separator is a kind of magnetic separator that iron ore selects factory generally to use, and wherein, drum type brake magnetic separation owner will be made up of cylinder, magnetic roller, brush roll, magnetic system, cell body, running part 6 part.Operationally, driven by motor cylinder and magnetic roller and brush roll do gyration, and to make ore pulp under loose condition (of surface) under the influence of a magnetic field, magnetic ore particle in ore pulp is moved to pole orientation, and to be attracted on cylinder, non magnetic ore particle comes off from cylinder.Although magnetic ore particle can be separated by the magnetic separator of this kind of structure from ore pulp, but its structure, every part in 6 parts of composition all needs to be equipped with relevant auxiliary part, as the magnetic patch in cylinder need be contained on the base plate of yoke with stainless steel bolt, the axle head that yoke extends cylinder is also fixed with connecting lever, in order to adjust magnetic system drift angle, adjust suitable after can be fixing etc. with pull bar, so the complex structure of the magnetic separator of this kind of structure, cost of manufacture is higher.The wet magnetic separator of another kind of structure is vertical ring magnetic separator, this magnetic separator has a becket, its underpart is provided with magnetic pole, becket is made vertically to be rotated between the two poles of the earth, magnetic ore particle is made to be attached to becket surface, and turn to the more weak top of magnetic field intensity by becket, by water under high pressure, magnetic ore particle is punched in stock chest.This kind of magnetic separator separation index is relatively low, and structure also relative complex; Simultaneously because the ore pulp flowing velocity in vertical ring magnetic separator is relatively very fast, even if apply the magnetic field of intensity to it, its leakage selects rate also larger.
Traditional magnetic separation mode adopts continuous multi-stage concentration equipment to carry out magnetic separation usually, and floor space is large, long flow path, be not easy to management, and the utilization rate of raw material is subject to the restriction of magnetic separation hop count.A kind of iron ore dry powder magnetic separation technology announced as Chinese patent CN101954311B and equipment just have above shortcoming.
Summary of the invention
For overcoming above-mentioned defect, spy discloses this contrive equipment.The object of the present invention is to provide a kind of Wet-type electromagnetic separator and magnetic selection method.The present invention can circulate magnetic separation, and improve the utilization rate having the mixed liquor of ore pulp, nonmetal fine particle and iron tramp, the circulation conduit of mineral simply not easily blocks, and can a large amount of feed of Seal treatment; Solve traditional magnetic separation mode floor space large, long flow path, is not easy to the shortcomings such as management simultaneously.
Technical scheme of the present invention is achieved in that
A kind of circulation wet-type magnetic separation method, is characterized in that: it comprises the following steps:
1), clean removal of impurities, wet type ore pulp, first carries out cleaning removal of impurities, controls below 10% by impurity content visual in ore pulp;
2), filter pre-sifted, by ore pulp in advance by 60 ~ 400 object sieve apertures, select the ore pulp of relatively fine particle;
3), feed, mixed ore pulp is injected into magnetic separator;
4), first time magnetic separation, raw material enters in the upper taper cone barrel of magnetic separator, magnetic induction coil energising with rotary main shaft start rotate, after 10-40min magnetic separation, first time magnetic separation terminate;
5), the meniscate slurry leakage hole of first time opening and closing, open the crescent slurry leakage hole between water fender edge and magnetic separation barrel inwall, remaining ore pulp in upper taper cone barrel is discharged to lower taper cone barrel, treats that ore pulp enters lower taper cone barrel completely, water fender is coordinated with slurry leakage hole and closes;
6), first time rotary water jet recovery, upper taper cone barrel and lower taper cone barrel are rotated 180 °, upper taper cone barrel vertically rotates to below, open the hole for water spraying of slurry leakage hole and upper sparge pipe, magnetic induction coil power-off high-speed rotation simultaneously, while centrifugal force, gravity and waterpower under effect, the ore pulp through magnetic separation is cleared out upper taper cone barrel, employing gathering-device is collected, and closes water jet;
7), second time magnetic separation, ore pulp remaining in lower taper cone barrel starts magnetic separation, after 20-30min magnetic separation, opens slurry leakage hole, the remaining mineral aggregate in lower taper cone barrel or ore pulp are discharged to upper taper cone barrel, treat that mineral aggregate or ore pulp enter taper cone barrel completely, closes slurry leakage hole;
8), second time opening and closing slurry leakage hole, open the crescent slurry leakage hole between water fender edge and magnetic separation barrel inwall, the remaining ore pulp in lower taper cone barrel be discharged to upper taper cone barrel, treat that ore pulp enters taper cone barrel completely, water fender is coordinated with slurry leakage hole closed;
9), second time rotary water jet reclaims, upper taper cone barrel and lower taper cone barrel are rotated 180 °, lower taper cone barrel rotates to below again, open the hole for water spraying of slurry leakage hole and lower sparge pipe, magnetic induction coil power-off high-speed rotation simultaneously, while centrifugal force, gravity and waterpower under effect, the ore pulp through magnetic separation is cleared out lower taper cone barrel, employing gathering-device is collected, close jet hole;
10), move in circles magnetic separation, the mineral aggregate higher for magnetic separation effect or ore pulp, and magnetic separation process can repeat step 4)-7 successively) carry out, until reach magnetic separation effect;
11), rotary slagging coutrol, upper taper cone barrel and lower taper cone barrel are rotated 180 °, and upper taper cone barrel rotates to below again, opens the hole for water spraying of slurry leakage hole and upper sparge pipe, and simultaneously magnetic induction coil is in power-off high-speed rotation, by remaining ore pulp emptying, adopts gathering-device to reclaim;
12), reverse flotation, flotation temperature keeps 22-28 DEG C, and the ore pulp of circulation and stress gained is injected floating agent, and after 10-15min, removing upper strata impurity, finally reclaims iron ore with gathering-device.
During magnetic separation, the electromagnet above the height of mixed liquor in magnetic separator can flood and don't contact upper opening; The electromagnet average magnetic induction intensity of magnetic separator is 8000-10000Gs, and be energized 20-60min at every turn; The slewing rate of the axle be connected with electromagnet is 60-200r/min, and wherein during magnetic separation, slewing rate is 60-180r/min, and rotating slewing rate when bringing down stocks is 180-200r/min, and rotation direction every 5-10min commutation once; Every 25-the 65min of drive unit rotates once.
Described floating agent is made up of the raw material of following mass percent: NaOH20-27%, starch 25-29%, lime 15-17%, RA-71525-30%.
Concentration equipment is electromagnet, the presence or absence of its magnetic can be controlled by control circuit, (an electromagnet part is arranged on and traverses on the rotating shaft of circular cone at absorption mineral of suitable time and released mineral to make it, a part is arranged on the two sides of water fender, under the driving of rotating shaft, electromagnet on axle can sway, and has both stirred the probability that ore pulp further increases absorption mineral).
Flusher is several water jets that rotating shaft distributes, and connects water source, and control the folding of water jet by the control circuit in rotating shaft by the water pipe installed in rotating shaft.When electromagnet power-off and magnetic disappear (now rotating shaft is still in rotation), water jet starts bath, and rinsed well by the mineral be attached on electromagnet and rotating shaft, finally, open discharge gate, mineral are discharged.
EGR is connected with bearing by drive unit.Drive unit be one can 180 °, plane rotate whirligig.
Electromagnet above the height of mixed liquor in magnetic separator can flood and don't contact upper opening; The electromagnet average magnetic induction intensity of magnetic separator is 8000-10000Gs, and be energized 20-60min at every turn; The slewing rate of the axle be connected with electromagnet is 60-200r/min, and wherein during magnetic separation, slewing rate is 60-180r/min, and rotating slewing rate when bringing down stocks is 180-200r/min, and rotation direction every 5-10min commutation once; Every 25-the 65min of drive unit rotates once; Floating agent consist of NaOH20-27%, starch 25-29%, lime 15-17%, RA-71525-30%.
Beneficial effect of the present invention is as follows:
One-time feeding of the present invention repeatedly magnetic separation capable of circulation, improves the utilization rate having the mixed liquor of ore pulp, nonmetal fine particle and iron tramp.The present invention is completely closed, decreases the waste of raw material and the pollution of residue; And the present invention is owing to have employed the circulating system of double cone EGR and drive unit formation, when forwarding diverse location under the driving of EGR at drive unit, coordinate the folding of Based Intelligent Control central authorities water fender, can realize mixed liquor replacing between two hollow cones, mixed liquor is capable of circulation is increased substantially the efficiency of magnetic separation and the utilization rate of mortar by magnetic separation.Magnetic selection method in the present invention, all complete in a device the repeatedly magnetic separation of raw material, floor space is little, and flow process is short, is convenient to management, and the utilization rate of raw material is not by the restriction of concentration equipment quantity.
In conjunction with accompanying drawing below, the present invention is described further.
Accompanying drawing explanation
Fig. 1 is a kind of magnetic dressing process schematic diagram of the present invention;
Fig. 2 is a kind of Wet-type electromagnetic separator front view of the present invention;
Fig. 3 is a kind of Wet-type electromagnetic separator top view of the present invention;
Fig. 4 is water fender scheme of installation;
Fig. 5 is the side view of water fender;
Fig. 6 is the control circuit figure of a kind of Wet-type electromagnetic separator of the present invention.
Detailed description of the invention
A kind of circulation wet-type magnetic separation method, it comprises the following steps:
1), clean removal of impurities, wet type ore pulp, first carries out cleaning removal of impurities, controls below 10% by impurity content visual in ore pulp;
2), filter pre-sifted, by ore pulp in advance by 60 ~ 400 object sieve apertures, select the ore pulp of relatively fine particle;
3), feed, mixed ore pulp is injected into magnetic separator;
4), first time magnetic separation, raw material enters in the upper taper cone barrel of magnetic separator, magnetic induction coil energising with rotary main shaft start rotate, after 10-40min magnetic separation, first time magnetic separation terminate;
5), the meniscate slurry leakage hole of first time opening and closing, open the crescent slurry leakage hole between water fender edge and magnetic separation barrel inwall, remaining ore pulp in upper taper cone barrel is discharged to lower taper cone barrel, treats that ore pulp enters lower taper cone barrel completely, water fender is coordinated with slurry leakage hole and closes;
6), first time rotary water jet recovery, upper taper cone barrel and lower taper cone barrel are rotated 180 °, upper taper cone barrel vertically rotates to below, open the hole for water spraying of slurry leakage hole and upper sparge pipe, magnetic induction coil power-off high-speed rotation simultaneously, while centrifugal force, gravity and waterpower under effect, the ore pulp through magnetic separation is cleared out upper taper cone barrel, employing gathering-device is collected, and closes water jet;
7), second time magnetic separation, ore pulp remaining in lower taper cone barrel starts magnetic separation, after 20-30min magnetic separation, opens slurry leakage hole, the remaining mineral aggregate in lower taper cone barrel or ore pulp are discharged to upper taper cone barrel, treat that mineral aggregate or ore pulp enter taper cone barrel completely, closes slurry leakage hole;
8), second time opening and closing (crescent) slurry leakage hole, open the crescent slurry leakage hole between water fender edge and magnetic separation barrel inwall, remaining ore pulp in lower taper cone barrel is discharged to upper taper cone barrel, treats that ore pulp enters taper cone barrel completely, water fender is coordinated with slurry leakage hole and closes;
9), second time rotary water jet reclaims, upper taper cone barrel and lower taper cone barrel are rotated 180 °, lower taper cone barrel rotates to below again, open the hole for water spraying of slurry leakage hole and lower sparge pipe, magnetic induction coil power-off high-speed rotation simultaneously, while centrifugal force, gravity and waterpower under effect, the ore pulp through magnetic separation is cleared out lower taper cone barrel, employing gathering-device is collected, close jet hole;
10), move in circles magnetic separation, the mineral aggregate higher for magnetic separation effect or ore pulp, and magnetic separation process can repeat step 4)-7 successively) carry out, until reach magnetic separation effect;
11), rotary slagging coutrol, upper taper cone barrel and lower taper cone barrel are rotated 180 °, and upper taper cone barrel rotates to below again, opens the hole for water spraying of slurry leakage hole and upper sparge pipe, and simultaneously magnetic induction coil is in power-off high-speed rotation, by remaining ore pulp emptying, adopts gathering-device to reclaim;
12), reverse flotation, flotation temperature keeps 22-28 DEG C, the ore pulp of circulation and stress gained is injected floating agent, floating agent is made up of the raw material of following mass percent: NaOH20-27%, starch 25-29%, lime 15-17%, RA-71525-30%, after 10-15min, removing upper strata impurity, finally reclaims iron ore with gathering-device.
During magnetic separation, the electromagnet above the height of mixed liquor in magnetic separator can flood and don't contact upper opening; The electromagnet average magnetic induction intensity of magnetic separator is 8000-10000Gs, and be energized 20-60min at every turn; The slewing rate of the axle be connected with electromagnet is 60-200r/min, and wherein during magnetic separation, slewing rate is 60-180r/min, and rotating slewing rate when bringing down stocks is 180-200r/min, and rotation direction every 5-10min commutation once; Every 25-the 65min of drive unit rotates once.
The Wet-type electromagnetic separator that the present invention adopts, comprise bearing 1, magnetic separation barrel 2 is arranged on bearing 1 by rotating shaft 14, the upper taper cone barrel 3 that magnetic separation barrel 2 is connected by bottom surface, lower taper cone barrel 4 is formed, upper taper cone barrel 3, lower taper cone barrel 4 top is respectively upper intake 5, lower intake 6, upper taper cone barrel 3, rotate respectively in lower taper cone barrel 4 and be provided with rotating shaft, rotating shaft is fixedly installed upper and lower two groups of electromagnet 7, electromagnet 7 is distributed with material spilling hole 20, upper taper cone barrel 3, be provided with cover in lower taper cone barrel 4 and be placed in upper sparge pipe 8 outside rotating shaft, lower sparge pipe 9, upper sparge pipe 8, lower sparge pipe 9 is distributed with hole for water spraying 10, upper sparge pipe 8, lower sparge pipe 9 is externally connected with high-pressure water, water fender 11 is separated with between upper taper cone barrel 3 and lower taper cone barrel 4, meniscate slurry leakage hole 15 is provided with between water fender 11 4 edges and magnetic separation barrel 2 inwall, water fender 11 includes upper partition 16, lower partition 17, four groups of linear electric motors 18 are provided with in space between upper partition 16 and lower partition 17, four groups of linear electric motors 18 drive the water fender 19 being connected with and matching with four slurry leakage holes 15 respectively, described upper partition, lower partition upper berth is equipped with electromagnet, upper partition 16, lower partition 17 is respectively equipped with fountain head 12, lower fountain head 13, upper fountain head 12 is connected with high-pressure water with lower fountain head 13.
The original state of this device is shown in Fig. 2.Upper feed inlet and outlet 5 is opened, and lower feed inlet and outlet 6, water fender 19 are all closed, and ore pulp enters upper taper cone barrel 3 by upper feed inlet and outlet 5; Closed upper intake 5 after ore pulp adds; Rotating shaft in upper taper cone barrel 3 starts to rotate, and electromagnet 7 starts energising, and magnetic separation starts; By control circui, 20-30min rear water plate 19 drives to adduction by four groups of linear electric motors 18, opens four slurry leakage holes 15, and the upper fountain head 12 simultaneously in upper partition 16 starts water spray, makes ore pulp flow into lower taper cone barrel 4 completely, closed water fender 19 after 2-5min; Rotating shaft 14 drives magnetic separation barrel 2 to turn clockwise 180 °, and namely go up taper cone barrel 3 and be positioned at below, lower taper cone barrel 4 is positioned at top; For upper taper cone barrel 3, electromagnet 7 power-off magnetic disappears, and water jet 8 and 12 is started working, the rotating shaft now gone up in taper cone barrel 3 is still rotating, because absorption affinity disappears, and there is gravity, water flow impact pressure and centrifugal force, mineral are brought to the summit place of cone 3; Open feed inlet and outlet 5, take mineral away, then complete a magnetic separation, implement complete 1 time; For lower taper cone barrel 4, the position of taper cone barrel 3 is gone up when lower taper cone barrel 4 is transferred to initial position, the same taper cone barrel 3 operates mechanism, lower taper cone barrel 4 rotates back to below more counterclockwise, then go up taper cone barrel 3 again to fill with into mixed liquor, and at this moment, lower taper cone barrel 4 clears up iron mineral, so far, completing a magnetic separation (being equivalent to a circulation magnetic separation twice). upper taper cone barrel 3 times taper cone barrels 4 hocket magnetic separation, achieve the circulation magnetic separation of mixed liquor, drastically increase the utilization rate of efficiency of magnetic separation and raw material.
Claims (3)
1. a circulation wet-type magnetic separation method, is characterized in that: it comprises the following steps:
1), clean removal of impurities, wet type ore pulp, first carries out cleaning removal of impurities, controls below 10% by impurity content visual in ore pulp;
2), filter pre-sifted, by ore pulp in advance by 60 ~ 400 object sieve apertures, select the ore pulp of relatively fine particle;
3), feed, mixed ore pulp is injected into magnetic separator;
4), first time magnetic separation, raw material enters in the upper taper cone barrel of magnetic separator, magnetic induction coil energising with rotary main shaft start rotate, after 10-40min magnetic separation, first time magnetic separation terminate;
5), the meniscate slurry leakage hole of first time opening and closing, open the crescent slurry leakage hole between water fender edge and magnetic separation barrel inwall, remaining ore pulp in upper taper cone barrel is discharged to lower taper cone barrel, treats that ore pulp enters lower taper cone barrel completely, water fender is coordinated with slurry leakage hole and closes;
6), first time rotary water jet recovery, upper taper cone barrel and lower taper cone barrel are rotated 180 °, upper taper cone barrel vertically rotates to below, open the hole for water spraying of slurry leakage hole and upper sparge pipe, magnetic induction coil power-off high-speed rotation simultaneously, while centrifugal force, gravity and waterpower under effect, the ore pulp through magnetic separation is cleared out upper taper cone barrel, employing gathering-device is collected, and closes water jet;
7), second time magnetic separation, ore pulp remaining in lower taper cone barrel starts magnetic separation, after 20-30min magnetic separation, opens slurry leakage hole, the remaining mineral aggregate in lower taper cone barrel or ore pulp are discharged to upper taper cone barrel, treat that mineral aggregate or ore pulp enter taper cone barrel completely, closes slurry leakage hole;
8), second time opening and closing slurry leakage hole, open the crescent slurry leakage hole between water fender edge and magnetic separation barrel inwall, the remaining ore pulp in lower taper cone barrel be discharged to upper taper cone barrel, treat that ore pulp enters taper cone barrel completely, water fender is coordinated with slurry leakage hole closed;
9), second time rotary water jet reclaims, upper taper cone barrel and lower taper cone barrel are rotated 180 °, lower taper cone barrel rotates to below again, open the hole for water spraying of slurry leakage hole and lower sparge pipe, magnetic induction coil power-off high-speed rotation simultaneously, while centrifugal force, gravity and waterpower under effect, the ore pulp through magnetic separation is cleared out lower taper cone barrel, employing gathering-device is collected, close jet hole;
10), move in circles magnetic separation, the mineral aggregate higher for magnetic separation effect or ore pulp, and magnetic separation process can repeat step 4)-7 successively) carry out, until reach magnetic separation effect;
11), rotary slagging coutrol, upper taper cone barrel and lower taper cone barrel are rotated 180 °, and upper taper cone barrel rotates to below again, opens the hole for water spraying of slurry leakage hole and upper sparge pipe, and simultaneously magnetic induction coil is in power-off high-speed rotation, by remaining ore pulp emptying, adopts gathering-device to reclaim;
12), reverse flotation, flotation temperature keeps 22-28 DEG C, and the ore pulp of circulation and stress gained is injected floating agent, and after 10-15min, removing upper strata impurity, finally reclaims iron ore with gathering-device.
2. magnetic selection method as claimed in claim 1, is characterized in that, during magnetic separation, and the electromagnet above the height of mixed liquor in magnetic separator can flood and don't contact upper opening; The electromagnet average magnetic induction intensity of magnetic separator is 8000-10000Gs, and be energized 20-60min at every turn; The slewing rate of the axle be connected with electromagnet is 60-200r/min, and wherein during magnetic separation, slewing rate is 60-180r/min, and rotating slewing rate when bringing down stocks is 180-200r/min, and rotation direction every 5-10min commutation once; Every 25-the 65min of drive unit rotates once.
3. magnetic selection method as claimed in claim 1, it is characterized in that, described floating agent is made up of the raw material of following mass percent: NaOH20-27%, starch 25-29%, lime 15-17%, RA-71525-30%, and wherein the percentage sum of each raw material is 100%.
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| CN2232318Y (en) * | 1995-11-24 | 1996-08-07 | 北京矿冶研究总院设备研究所 | Permanent-magnetic pipeline type strone magnetic separator |
| FR2901492A1 (en) * | 2006-05-23 | 2007-11-30 | Lenoir Raoul Ets | Magnetic separator e.g. linear type magnetic separator, for treating e.g. pulp, has pole pieces associated to permanent magnets to generate magnetic field between pieces, and extraction unit in magnetic field through which pulp circulates |
| RU2392057C1 (en) * | 2009-02-26 | 2010-06-20 | Алексей Алексеевич Стафеев | Magnetic hydroseparator |
| CN101767058A (en) * | 2009-01-06 | 2010-07-07 | 上海金步机械科技发展有限公司 | Wet magnetic separator |
| CN101940978A (en) * | 2010-04-10 | 2011-01-12 | 王全永 | Wet magnetic separator |
| CN102166544A (en) * | 2011-05-19 | 2011-08-31 | 北京矿冶研究总院 | Wet-type magnet separator cell body |
| CN103386362A (en) * | 2012-05-11 | 2013-11-13 | 王士力 | Turbulent- flow orthogonal magnetic field wet magnetic separator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8905242B2 (en) * | 2012-05-25 | 2014-12-09 | John VanDeMierden | Ash processing and metals recovery systems and methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2232318Y (en) * | 1995-11-24 | 1996-08-07 | 北京矿冶研究总院设备研究所 | Permanent-magnetic pipeline type strone magnetic separator |
| FR2901492A1 (en) * | 2006-05-23 | 2007-11-30 | Lenoir Raoul Ets | Magnetic separator e.g. linear type magnetic separator, for treating e.g. pulp, has pole pieces associated to permanent magnets to generate magnetic field between pieces, and extraction unit in magnetic field through which pulp circulates |
| CN101767058A (en) * | 2009-01-06 | 2010-07-07 | 上海金步机械科技发展有限公司 | Wet magnetic separator |
| RU2392057C1 (en) * | 2009-02-26 | 2010-06-20 | Алексей Алексеевич Стафеев | Magnetic hydroseparator |
| CN101940978A (en) * | 2010-04-10 | 2011-01-12 | 王全永 | Wet magnetic separator |
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Effective date of registration: 20201223 Address after: 245000 No.50, Meilin Avenue, Huangshan Economic Development Zone, Huangshan City, Anhui Province Patentee after: Huangshan Development Investment Group Co.,Ltd. Address before: 230009 No.193 Tunxi Road Hefei 230009 Anhui Province Patentee before: Hefei University of Technology |
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