CN100563838C - Mine tailing reclaims sulphur iron separation ore-sorting system and method - Google Patents

Mine tailing reclaims sulphur iron separation ore-sorting system and method Download PDF

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Publication number
CN100563838C
CN100563838C CNB2007101585915A CN200710158591A CN100563838C CN 100563838 C CN100563838 C CN 100563838C CN B2007101585915 A CNB2007101585915 A CN B2007101585915A CN 200710158591 A CN200710158591 A CN 200710158591A CN 100563838 C CN100563838 C CN 100563838C
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magnetic
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magnetic separator
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mine tailing
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CN101161348A (en
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王少祖
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王少祖
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/52Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly

Abstract

Mine tailing reclaims sulphur iron separation ore-sorting system and method, mine tailing is transported in the batch hopper by hopper, vibro-feeder, belt conveyor, entering one-level magnetic separator, secondary magnetic separation machine, three grades of magnetic separators 1, level Four magnetic separator, Pyatyi magnetic separator, six grades of magnetic separators behind the thin up successively sorts; the mine tailing that sorts after the separation flows into the workshop tail-box; magnetic-bearing mineral matter flows into iron powder sedimentation basin precipitation, finishes the separation process that sorts of Iron Ore Powder.In order to extract elaboration sulphur powder, tail-box is communicated with sulphur powder sedimentation basin, because the sulphur powder is than great, the sulphur powder is deposited in the pond, the pure tailing stream that post precipitation produces is to total tail-box, the low-grade sulphur powder of sulphur powder sedimentation basin flows into after the flotation unit flotation in the elaboration sulphur powder sedimentation basin and precipitates, and the post precipitation by certain hour promptly gets elaboration sulphur powder, finishes the beneficiation flowsheet of sulphur powder.Native system is fit to large-scale mine tailing recovery operation, solved the problem of the wasting of resources, and cost is low, and output value height, production cost only account for about 10% of the output value.

Description

Mine tailing reclaims sulphur iron separation ore-sorting system and method
Technical field:
The present invention relates to a kind ofly reclaim ore-sorting system and use this system separates, reclaims Iron Ore Powder, sulphur powder to mine tailing method at pyrite, pyritic mine tailing.
Background technology:
Present mine tailing recovery operation uses the disc type mine tailing to reclaim machine usually, this rate of recovery that reclaims machine is very low, small scale, and mine tailing recovery machine does not have the sulphur powder separator at the sulfur-bearing mine tailing, Iron Ore Powder in the mine tailing can only be sorted and separate, when recovery contains the pyrite of abundant sulphur composition, pyritic mine tailing, the sulphur powder can't be separated, make a large amount of sulphur with tailing waste, the waste mineral resources.
Summary of the invention:
In order to solve the problem of above-mentioned existence, the invention provides a kind of sulphur, iron in the mine tailing can separation, and rate of recovery height, be fit to the extensive mine tailing that uses and reclaim sulphur iron separation ore-sorting system and use the method that this system reclaims the Iron Ore Powder in the mine tailing, sulphur powder; The objective of the invention is to be achieved through the following technical solutions: mine tailing reclaims sulphur iron separation ore-sorting system: comprise water supply installation, pipeline, be provided with vibro-feeder (55) at hopper (1) lower part outlet end, the port of export of vibro-feeder (55) is provided with belt conveyor (2), end at belt conveyor (2) is provided with batch hopper (3), at batch hopper (3) and one-level magnetic separator A (5), be provided with first balanced device (4) between the one-level magnetic separator B (6), one-level magnetic separator A (5), the concentrate mouth of one-level magnetic separator B (6) is connected with the inlet of secondary magnetic separation machine (8) by interflow device (7), the concentrate mouth of secondary magnetic separation machine (8) is connected with the inlet of forging grinding machine (9), the outlet of forging grinding machine (9) is connected with second balanced device (10), second balanced device (10) is connected with the inlet of three grades of magnetic separators (11), the concentrate mouth of three grades of magnetic separators (11) is connected with the inlet of level Four magnetic separator (12), the concentrate mouth of level Four magnetic separator (12) has high frequency sieve (13), be provided with first pulp tank (16) in the side of high frequency sieve (13), the lower floor of high frequency sieve (13) is provided with Pyatyi magnetic separator (14) successively, six grades of magnetic separators (15), first pulp tank (16) outlet at bottom is connected with first sand pump (17), the outlet of first sand pump (17) (53) by the road is connected with the inlet of forging grinding machine (9), the concentrate mouth of six grades of magnetic separators (15) and three sedimentation basins (26,27,28) be communicated with by second pulp tank (75), one-level magnetic separator A (5), one-level magnetic separator B (6), secondary magnetic separation machine (8), three grades of magnetic separators (11), level Four magnetic separator (12), Pyatyi magnetic separator (14), the mine tailing mouth of six grades of magnetic separators (15) is communicated with tail-box (33), tail-box (33) and two sulphur powder sedimentation basins (24,25) be communicated with, sulphur powder sedimentation basin (24,25) be respectively equipped with second sand pump (18) in, the 3rd sand pump (19), second sand pump (18), the outlet of the 3rd sand pump (19) is connected with the inlet of flotation unit (20), the elaboration mouth of flotation unit (20) and two elaboration sulphur powder sedimentation basins (29,30) be communicated with, sulphur powder sedimentation basin (24, the tail-box (34) of mine tailing mouth 25) and flotation unit is communicated with total tail-box (35), total tail-box (35) leads to mine tailing storehouse (36), one-level magnetic separator A (5), one-level magnetic separator B (6) is arranged on the same level height, the level height of secondary magnetic separation machine (8) is at one-level magnetic separator A (5), between one-level magnetic separator B (6) and the forging grinding machine (9), forge grinding machine (9), three grades of magnetic separators (11) are in same level height, level Four magnetic separator (12) position is lower than three grades of magnetic separators (11), high frequency sieve (13), Pyatyi magnetic separator (14), six grades of magnetic separators (15) are in same level height, and the position is lower than level Four magnetic separator (12).
Described one-level, secondary, three grades, level Four magnetic separator, comprise: permanent-magnetic cylindrical, drench pit, frame, transmission device, feed launder, concentrate hopper, tail-box, magnetic are adjusting device, the feed launder below is provided with buffer table, and the mine tailing mouth is arranged on the minimum point of drench pit and the position between the concentrate mouth.
The magnetic of described permanent-magnetic cylindrical is that angle is 120 degree-170 degree.
Mine tailing reclaims sulphur iron separation beneficiation method: the interior material loading of feed hopper (1); By vibro-feeder (55) feed; By belt conveyor (2) mass transport is arrived in the batch hopper (3); Water supply installation is that batch hopper supplies water by pipeline; Enter one-level magnetic separator A (5) by first balanced device (4) behind the thin up; Secondary magnetic separation machine B (6); Magnetic-bearing mineral matter after sorting enters secondary magnetic separation machine (8) by interflow device (7) interflow and again sorts separation; The magnetic material that contains after sorting enters and forges grinding machine (9) and carry out fine lapping; Material after the grinding enters three grades of magnetic separators (11) by second balanced device (10); Sorting magnetic-bearing mineral matter after the separation enters level Four magnetic separator (12) and sorts; The mineral matter that contains magnetic enters small-sized high frequency sieve (13) and carries out particle filter; Coarse granule magnetic-bearing mineral matter flows into first pulp tank (16) on the sieve; Returning forging grinding machine (9) by first sand pump (17) and pipeline (53) grinds again; The lower certified products of sieve flow into Pyatyi magnetic separator (14) and sort; The mineral matter of magnetic enters six grades of magnetic separators (15) and sorts for the last time; Above-mentioned one-level magnetic separator A (5); Secondary magnetic separation machine B (6); Secondary magnetic separation machine (8); Three grades of magnetic separators (11); Level Four magnetic separator (12); Pyatyi magnetic separator (14); The magnetic field intensity of six grades of magnetic separators (15) is 2500~5000 Gausses; The mine tailing that sorts after the separation flows into workshop tail-box (33); Magnetic-bearing mineral matter flows into iron powder sedimentation basin (26; 27; 28) precipitation namely gets Iron Ore Powder; Tail-box (33) is communicated with sulphur powder sedimentation basin (24,25), the low-grade sulphur powder that sulphur powder sedimentation basin (24,25) is selected is by second sand pump (18), the 3rd (19), squeeze in the flotation unit (20) and carry out flotation, enter elaboration sulphur powder sedimentation basin (29,30) precipitation after the flotation, promptly get elaboration sulphur powder, finish the beneficiation flowsheet of sulphur powder.
Beneficial effect of the present invention: mine tailing of the present invention reclaims sulphur iron separation ore-sorting system and compared with adopt disc type mine tailing recovery machine in the past, the refinement of whole recovery flow process, adopt six grades of magnetic separators, mine tailing is carried out magnetic separation, as much as possible the magnetic iron ore that contains in the mine tailing is separated, because of one-level, secondary, three grades, level Four raw meal particle size that magnetic separator sorts is below 6 millimeters, so adopt homemade permanent magnetic cylinder type wet-treatment uniflow trough magnetic separator, magnetic field intensity is 2500~5000 Gausses, its feature is to sort coarse size, it sorts granularity at 0~8mm, magnetic is that angle can reach 120 degree-170 degree; it is long to sort the zone; owing to be provided with buffer table below feed launder; tail-box is arranged on the minimum point of drench pit and the position between the concentrate hopper; make mine tailing not to be flowed directly to tail-box from iron ore feeding hole; and the magnetic mineral band (thorn-like) that needs permanent-magnetic cylindrical to attract magnetisable material to form under the effect in magnetic field promotes mine tailing and enters tail-box; mineral are fully contacted with the hydromagnetic cylinder; and the constituency extends, thus the raising rate of recovery; Because of Pyatyi, six grades of selected other raw meal particle sizes of magnetic separator are below 0~0.1mm, so adopt commercial permanent-magnet chamber type wet separation half adverse current cell body magnetic separator, magnetic field intensity is 2500~5000 Gausses; sorting granularity is 0~0.15mm; it is strong to sort separation property; adopt the different magnetic separator of above-mentioned two class performances; yield is reached more than 99%, and debris recovery iron ore powder system of the present invention especially is fit to large-scale mine tailing recovery operation; solved the problem of the wasting of resources; use this system recoveries mine tailing, cost is low, output value height; production cost only accounts for about 10% of the output value, and profit accounts for about 90%.
Description of drawings:
Fig. 1 is the structural representation that mine tailing reclaims sulphur iron separation ore-sorting system;
Fig. 2 is the side view that mine tailing reclaims sulphur iron separation ore-sorting system;
Fig. 3 is the structural representation of permanent magnetic cylinder type wet-treatment uniflow trough magnetic separator;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is the fundamental diagram of permanent magnetic cylinder type wet-treatment uniflow trough magnetic separator.
The specific embodiment:
Mine tailing reclaims sulphur iron separation ore-sorting system, comprises water supply installation, pipeline, and water supply installation comprises water source 23, clarified water pump 22, sump 21, and water source 23 pours into sump 21 through clarified water pump 22, and the retaining in the sump 21 is the system water supply of ore-sorting system by pipeline; Be provided with vibro-feeder 55 at hopper 1 lower part outlet end, the port of export of vibro-feeder 55 is provided with belt conveyor 2, sent out batch hopper 3 at the end of belt conveyor 2, at batch hopper 3 and one-level magnetic separator 5, be provided with balanced device 4 between 6, one-level magnetic separator 5,6 concentrate mouth is connected with the inlet of secondary magnetic separation machine 8 by interflow device 7, the concentrate mouth of secondary magnetic separation machine 8 is connected with the inlet of forging grinding machine 9, the outlet of forging grinding machine 9 is connected with balanced device 10, balanced device 10 is connected with the inlet of three grades of magnetic separators 11, the concentrate mouth of three grades of magnetic separators 11 is connected with the inlet of level Four magnetic separator 12, the concentrate mouth of level Four magnetic separator 12 has high frequency sieve 13, be provided with pulp tank 16 in the side of high frequency sieve 13, the lower floor of high frequency sieve 13 is provided with Pyatyi magnetic separator 14 successively, six grades of magnetic separators 15, pulp tank 16 outlet at bottoms are connected with sand pump 17, the outlet of sand pump 17 53 is connected with the inlet of forging grinding machine 9 by the road, the concentrate mouth of six grades of magnetic separators 15 and sedimentation basin 26,27,28 by pulp tank 75 connections, one-level magnetic separator 5,6,8 three grades of magnetic separators 11 of secondary magnetic separation machine, level Four magnetic separator 12, Pyatyi magnetic separator 14, the mine tailing mouth of six grades of magnetic separators 15 is communicated with tail-box 33, tail-box 33 and sulphur powder sedimentation basin 24,25 are communicated with, sulphur powder sedimentation basin 24, be respectively equipped with sand pump 18 in 25,19, sand pump 18,19 outlet is connected with the inlet of flotation unit 20, the elaboration mouth of flotation unit 20 and elaboration sulphur powder sedimentation basin 29,30 are communicated with, sulphur powder sedimentation basin 24,25 the mine tailing mouth and the tail-box 34 of flotation unit are communicated with total tail-box 35, and total tail-box 35 leads to mine tailing storehouse 36.As shown in Figure 2, one-level magnetic separator 5,6 is arranged on the same level height, the level height of secondary magnetic separation machine 8 is at one-level magnetic separator 5,6 and forge and to forge grinding machine 9, three grades of magnetic separators 11 between the grinding machine 9 in same level height, level Four magnetic separator 12 positions are lower than three grades of magnetic separators 11, high frequency sieve 13, Pyatyi magnetic separator 14, six grades of magnetic separators 15 are in same level height, and the position is lower than level Four magnetic separator 12.Magnetic separators at different levels and the installation of forging grinding machine are staged arranges, and makes material be direct current one-level one-level and carries downwards, has reduced transfer equipment, reduces producing cost.Wherein one-level, secondary, three grades, level Four magnetic separator, adopt homemade permanent magnetic cylinder type wet-treatment uniflow trough magnetic separator, its structure comprises that frame 41, motor 39, transmission device 42, drench pit 40, permanent-magnetic cylindrical 38, magnetic are adjusting device 37, feed launder 43, tail-box 44, concentrate hopper 45 shown in Fig. 3-5; Motor 39 is connected with permanent-magnetic cylindrical 38 with transmission device 42, motor 39 drives permanent-magnetic cylindrical 38 rotations by transmission device 42, the two ends of drench pit 40 are respectively equipped with feed launder 43 and concentrate hopper 45, the feed launder below is provided with buffer table 46, mine tailing mouth 49 is located at the minimum point of drench pit 40 and the position between the concentrate mouth 50, magnetic is 47 to be arranged on permanent-magnetic cylindrical 38 inside, be fan-shaped distribution, the inner magnet of permanent-magnetic cylindrical 38 is that angle is 120 degree-170 degree, permanent-magnetic cylindrical 38 is that adjusting device 37 is connected with magnetic, and magnetic is that adjusting device 37 is used for adjusting magnetic declination.
Mine tailing reclaims sulphur iron separation beneficiation method; In feed hopper 1, transport mine tailing with forklift; By vibro-feeder 55 feeds; Adjust the amplitude current of vibro-feeder and just can adjust feeding coal; By belt conveyor 2 mass transport is arrived in the batch hopper 3; Water supply installation is that batch hopper supplies water by pipeline; Material behind the thin up enters one-level magnetic separator 5 by balanced device 4; 6; Magnetic-bearing mineral matter after sorting enters secondary magnetic separation machine 8 by interflow device 7 interflow and again sorts separation; The magnetic material that contains after sorting enters and forges grinding machine 9 and carry out fine lapping; Material after the grinding enters three grades of magnetic separators 11 by balanced device 10; Sorting magnetic-bearing mineral matter after the separation enters level Four magnetic separator 12 and sorts; The mineral matter that contains magnetic enters small-sized high frequency sieve 13 and carries out particle filter; Coarse granule magnetic-bearing mineral matter flows into pulp tank 16 on the sieve; Returning forging grinding machine 9 by sand pump 17 and pipeline 53 grinds again; Sieve is lower to be sorted for certified products flow into Pyatyi magnetic separator 14; The mineral matter of magnetic enters six grades of magnetic separators 15 and sorts for the last time; The mine tailing that sorts after the separation flows into workshop tail-box 33; Magnetic-bearing mineral matter flows into iron powder sedimentation basin 26; 27; 28; Three iron powder sedimentation basins use respectively by turns; Full pond is by precipitating after a while; Be transported to the iron powder storehouse by forklift again, finish the separation process that sorts of Iron Ore Powder. In order to extract elaboration sulphur powder, avoid causing the wasting of resources, with tail-box 33 and sulphur powder sedimentation basin 24,25 are communicated with, because the sulphur powder is than great, the sulphur powder is deposited in the pond, the pure tailing stream that post precipitation produces is to total tail-box 35, sulphur powder sedimentation basin 24, the 25 low-grade sulphur powder of selecting are by sand pump 18,19, squeeze into and carry out flotation in the flotation unit 20, the mine tailing after the flotation flows into total tail-box 35 through tail-box 34, flows into mine tailing storehouse 36 at last, elaboration sulphur powder after the flotation flows into elaboration sulphur powder sedimentation basin 29, precipitate in 30, post precipitation by certain hour promptly gets elaboration sulphur powder, is transported to elaboration sulphur powder storehouse by forklift, finishes the beneficiation flowsheet of sulphur powder.

Claims (4)

1, mine tailing reclaims sulphur iron separation ore-sorting system: comprise water supply installation, pipeline, it is characterized in that: be provided with vibro-feeder (55) at hopper (1) lower part outlet end, the port of export of vibro-feeder (55) is provided with belt conveyor (2), end at belt conveyor (2) is provided with batch hopper (3), at batch hopper (3) and one-level magnetic separator A (5), be provided with first balanced device (4) between the one-level magnetic separator B (6), one-level magnetic separator A (5), the concentrate mouth of one-level magnetic separator B (6) is connected with the inlet of secondary magnetic separation machine (8) by interflow device (7), the concentrate mouth of secondary magnetic separation machine (8) is connected with the inlet of forging grinding machine (9), the outlet of forging grinding machine (9) is connected with second balanced device (10), second balanced device (10) is connected with the inlet of three grades of magnetic separators (11), the concentrate mouth of three grades of magnetic separators (11) is connected with the inlet of level Four magnetic separator (12), the concentrate mouth of level Four magnetic separator (12) has high frequency sieve (13), be provided with first pulp tank (16) in the side of high frequency sieve (13), the lower floor of high frequency sieve (13) is provided with Pyatyi magnetic separator (14) successively, six grades of magnetic separators (15), first pulp tank (16) outlet at bottom is connected with first sand pump (17), the outlet of first sand pump (17) (53) by the road is connected with the inlet of forging grinding machine (9), the concentrate mouth of six grades of magnetic separators (15) and three sedimentation basins (26,27,28) be communicated with by second pulp tank (75), one-level magnetic separator A (5), one-level magnetic separator B (6), secondary magnetic separation machine (8), three grades of magnetic separators (11), level Four magnetic separator (12), Pyatyi magnetic separator (14), the mine tailing mouth of six grades of magnetic separators (15) is communicated with tail-box (33), tail-box (33) and two sulphur powder sedimentation basins (24,25) be communicated with, sulphur powder sedimentation basin (24,25) be respectively equipped with second sand pump (18) in, the 3rd sand pump (19), second sand pump (18), the outlet of the 3rd sand pump (19) is connected with the inlet of flotation unit (20), the elaboration mouth of flotation unit (20) and two elaboration sulphur powder sedimentation basins (29,30) be communicated with, sulphur powder sedimentation basin (24, the tail-box (34) of mine tailing mouth 25) and flotation unit is communicated with total tail-box (35), total tail-box (35) leads to mine tailing storehouse (36), one-level magnetic separator A (5), one-level magnetic separator B (6) is arranged on the same level height, the level height of secondary magnetic separation machine (8) is at one-level magnetic separator A (5), between one-level magnetic separator B (6) and the forging grinding machine (9), forge grinding machine (9), three grades of magnetic separators (11) are in same level height, level Four magnetic separator (12) position is lower than three grades of magnetic separators (11), high frequency sieve (13), Pyatyi magnetic separator (14), six grades of magnetic separators (15) are in same level height, and the position is lower than level Four magnetic separator (12).
2, mine tailing according to claim 1 reclaims sulphur iron separation ore-sorting system, it is characterized in that: described one-level, secondary, three grades, level Four magnetic separator, comprise: permanent-magnetic cylindrical, drench pit, frame, transmission device, feed launder, concentrate hopper, tail-box, magnetic are adjusting device, the feed launder below is provided with buffer table, and the mine tailing mouth is arranged on the minimum point of drench pit and the position between the concentrate mouth.
3, mine tailing according to claim 2 reclaims sulphur iron separation ore-sorting system, it is characterized in that: the magnetic of described permanent-magnetic cylindrical is that angle is 120 degree-170 degree.
4, mine tailing reclaims sulphur iron separation beneficiation method: the interior material loading of feed hopper (1), by vibro-feeder (55) feed, by belt conveyor (2) mass transport is arrived in the batch hopper (3), water supply installation is that batch hopper supplies water by pipeline, enter one-level magnetic separator A (5) by first balanced device (4) behind the thin up, one-level magnetic separator B (6), one-level magnetic separator A, magnetic-bearing mineral matter after one-level magnetic separator B sorts enters secondary magnetic separation machine (8) by interflow device (7) interflow and sorts separation once more, magnetic-bearing mineral matter after the secondary magnetic separation machine sorts enters forging grinding machine (9) and carries out fine lapping, material after the grinding enters three grades of magnetic separators (11) by second balanced device (10), three grades of magnetic separators sort magnetic-bearing mineral matter after the separation and enter level Four magnetic separator (12) and sort, magnetic-bearing mineral matter after the level Four magnetic separator sorts enters small-sized high frequency sieve (13) and carries out the granularity screening, coarse granule magnetic-bearing mineral matter flows into first pulp tank (16) on the sieve, returning forging grinding machine (9) by first sand pump (17) and pipeline (53) grinds again, sieve certified products inflow Pyatyi magnetic separators (14) down sorts, magnetic-bearing mineral matter after the Pyatyi magnetic separator sorts enters six grades of magnetic separators (15) and sorts for the last time, above-mentioned one-level magnetic separator A (5), one-level magnetic separator B (6), secondary magnetic separation machine (8), three grades of magnetic separators (11), level Four magnetic separator (12), Pyatyi magnetic separator (14), the magnetic field intensity of six grades of magnetic separators (15) is 2500~5000 Gausses, the mine tailing that six grades of magnetic separators sort after the separation flows into workshop tail-box (33), the magnetic-bearing mineral matter that six grades of magnetic separators sort after the separation flows into iron powder sedimentation basin (26,27,28) precipitation promptly gets Iron Ore Powder; Tail-box (33) is communicated with sulphur powder sedimentation basin (24,25), the low-grade sulphur powder that sulphur powder sedimentation basin (24,25) is selected is by second sand pump (18), the 3rd sand pump (19), squeeze in the flotation unit (20) and carry out flotation, enter elaboration sulphur powder sedimentation basin (29,30) precipitation after the flotation, promptly get elaboration sulphur powder, finish the beneficiation flowsheet of sulphur powder.
CNB2007101585915A 2007-11-29 2007-11-29 Mine tailing reclaims sulphur iron separation ore-sorting system and method Expired - Fee Related CN100563838C (en)

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Publication number Priority date Publication date Assignee Title
CN101549322B (en) * 2009-05-13 2012-08-01 昆明理工大学 Process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate
CN101579652B (en) * 2009-05-15 2012-08-08 白银有色集团股份有限公司 Method for selecting sulfur from tailings discarded by mineral separation
CN103909008B (en) * 2012-12-31 2016-06-15 北京有色金属研究总院 A kind of ore dressing group technology reclaiming sulfur ferrum from Pb-Zn tailings
CN104028367A (en) * 2013-03-05 2014-09-10 中国科学院广州地球化学研究所 Process for recycling sulfur and iron resources in copper and sulfur tailings
CN105277474A (en) * 2014-11-17 2016-01-27 北京至感传感器技术研究院有限公司 Dust particle detection equipment
CN104998762A (en) * 2015-08-05 2015-10-28 天津美腾科技有限公司 Flotation processing center

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