CN105772211A - Arrangement method of magnetite ore flash magnetic separation combined equipment - Google Patents
Arrangement method of magnetite ore flash magnetic separation combined equipment Download PDFInfo
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- CN105772211A CN105772211A CN201610221341.0A CN201610221341A CN105772211A CN 105772211 A CN105772211 A CN 105772211A CN 201610221341 A CN201610221341 A CN 201610221341A CN 105772211 A CN105772211 A CN 105772211A
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- Prior art keywords
- ore
- magnetic separator
- cyclone
- grinding machine
- pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000007885 magnetic separation Methods 0.000 title claims abstract description 24
- 238000000227 grinding Methods 0.000 claims abstract description 46
- 239000006148 magnetic separator Substances 0.000 claims abstract description 37
- 239000004576 sand Substances 0.000 claims abstract description 20
- 239000012141 concentrate Substances 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 14
- 239000011435 rock Substances 0.000 claims description 9
- 210000005056 cell body Anatomy 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 48
- 229910052742 iron Inorganic materials 0.000 description 24
- 229910052500 inorganic mineral Inorganic materials 0.000 description 11
- 239000011707 mineral Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001608 iron mineral Inorganic materials 0.000 description 3
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- -1 goethitum Inorganic materials 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910021646 siderite Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Cyclones (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an arrangement method of magnetite ore flash magnetic separation combined equipment. An ore feeder (6) is connected with a mill ore feeding opening (11) of a ball mill (1) through a mill ore feeding tube seat (61); the mill ore feeding opening (11) is connected with a spigot (53) of a hydrocyclone (5) through a setting sand conveying tube (51); a mill ore discharging opening (12) is connected with an ore feeding tank (21) through a magnetic separator ore feeding tube seat (13) and a magnetic separator (2); an ore pulp pond (3) and an ore pulp pump (4) are arranged between the magnetic separator (2) and the hydrocyclone (5); a tailings opening (24) of the magnetic separator (2) is connected with the ore pulp pond (3) trough a tailings groove tube (25); the ore pulp pond (3) and the ore pulp pump (4) are connected with each other through a pulp inlet tube (41); and the ore pulp pump (4) is connected with an ore feeding opening (54) of the hydrocyclone (5) through an ore feeding tube (52). Qualified magnetite can be magnetically separated at flash speed, classification efficiency is improved, over grinding of the magnetite is avoided, energy consumption of ore separation is reduced, and magnetite recycling rate is increased.
Description
Technical field
The invention belongs to iron ore dressing technical field, be specifically related to a kind of quick acquisition magnetite concentrate give ore deposit, ore grinding, classification, magnetic separation unit equipment method for arranging, it is also possible in the flash magnetic separation containing weak Magnet mineral such as bloodstone, goethitum, siderite, limonite, manganese ores.
Background technology
During ore processing sorting, for ensureing separating of mineral and stone-like pulse, it is necessary to first ore grinding, make valuable mineral and stone-like pulse monomer dissociation.Existing grinding operation has the method such as open-circuit grinding and closed circuit grinding.Open-circuit grinding is that the material that ball mill is discharged does not return again to grinding machine；And the material that during closed circuit grinding, ball mill is discharged is introduced into grader, particulate qualified products separating and send into next operation in time, coarse fraction then returns ball mill and regrinds.Closed circuit grinding can improve disposal ability during the platform of ball mill, can avoid again overground, reduces argillization phenomenon, so in the closed circuit flow process selecting the widely used grinding machine of factory to coordinate with graded operation.Standing in existing closed circuit grinding have the classifying equipoment such as hydrocyclone, spiral classifier.Due to the density of granule, granularity difference in ore pulp, its centrifugal force being subject to, centripetal buoyancy, fluid drag etc. vary in size, by centrifugal sedimentation effect, the classified equipment underflow opening of most crude particle, heavy ore particle is discharged, and the ore particle that fine grained proportion is little is discharged by overfall.Following problem is there is also: the proportion of Magnet ore particle is more than gangue mineral to carrying out magnetic separation again containing magnetite ore closed circuit grinding, when granularity close to time, the sedimentation velocity of magnetic iron ore ore particle is more than gangue mineral granule, therefore, the magnetic iron ore ore particle of monomer dissociation settles soon in classification process, can not discharge from overflow timely, and enter in grader sand return, enter ore mill together with the intergrowth of other magnetic iron ores and gangue mineral to regrind, not only classification efficiency reduces, and magnetic iron ore ore particle grinds meticulous (overground), waste ore grinding energy consumption, meticulous magnetic iron ore is unfavorable sorts recovery, reduce the response rate of magnetic iron ore.
In order to reduce overground phenomenon, Chinese patent ZL201010177556.x discloses the beneficiation method of a kind of producing high-quality iron ore concentrate by low-grade magnetic iron ore, the method can throw tail in advance, reduces the generation of overground phenomenon, but can not obtain qualified magnetite concentrate in advance.
Summary of the invention
The purpose of the present invention is aiming at the above-mentioned problems in the prior art, and provides the method for arranging of a kind of simple in construction, magnetite ore flash magnetic separation unit equipment easy to use, widely used, is applied to the ore dressing plant flash magnetic separation containing magnetite ore.
For realizing the above-mentioned purpose of the present invention, the method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment is achieved through the following technical solutions.
The method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment, containing ball mill, magnetic separator, cyclone, rock feeder and waterworks in its unit equipment.The feed end of described ball mill is provided with grinding machine feed port, and the discharge end of ball mill is provided with grinding machine gape；Described barrel of magnetic separator feed side is provided with to ore deposit case, and the opposite side of barrel of magnetic separator is provided with concentrate case, is provided with mine tailing mouth bottom magnetic separator cell body；The side, top of described cyclone is provided with feed port, and the top of cyclone is provided with overfall, and the cone base of cyclone is provided with spigot.Described rock feeder is connected with the grinding machine feed port of ball mill by grinding machine mineral-feeding pipe groove, and grinding machine feed port is connected with the spigot of cyclone by sand setting conveying pipe, and grinding machine gape is connected with the ore deposit case of giving of magnetic separator by magnetic separator mineral-feeding pipe groove；Setting up slime dam, ore slurry pump between magnetic separator and cyclone, the mine tailing mouth of magnetic separator is connected with slime dam by mine tailing barrel, is connected by pulp-inlet pipe between ore slurry pump with ore slurry pump, and ore slurry pump is connected with the feed port of cyclone by mineral-feeding pipe；The overfall of cyclone is connected with overflow drain.
Described waterworks are made up of water-main, front feed pipe, rear feed pipe, rear feed pipe be arranged on sand setting conveying pipe on, front feed pipe is arranged on grinding machine gape, front feed pipe, rear feed pipe import be connected with water-main respectively.
Certainly, described cyclone can also replace with spiral classifier.
The method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment is in use, treat that grind materials is fed ball mill by rock feeder through grinding machine mineral-feeding pipe groove and ore grinding feed port, material is polished is discharged by grinding machine gape, with flash magnetic separation after front feed pipe addition suitable quantity of water guarantee suitable concn, namely the ore discharge of ball mill directly feeds magnetic separator to ore deposit case, magnetic iron ore, under magnetic separator effect, enters concentrate case and collects.Through the non-magnetic iron ore grain of magnetic separator, or magnetic iron ore and non-magnetic iron mineral intergrowth are mainly entered cyclone or spiral classifier by mine tailing mouth through mine tailing barrel.After cyclone or spiral classifier process, non-magnetic iron ore grain, or magnetic and non-magnetic iron mineral intergrowth be divided into two ranks of thickness, and in hierarchy system, rough grain is as sand setting.Sand setting needs to flow into ball mill regrind through sand setting conveying pipe, grinding machine feed port.Sand setting is carried pipe to add water by rear feed pipe, carries the sand setting in pipe to get excited sand setting, and regulates ore milling concentration.Particulate ore particle in hierarchy system, discharges from overfall as overflow, for next ore-dressing practice.
The method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment, Process configuration is simple, flexible for installation, can select qualified Magnet mineral in advance, improve classification efficiency, avoid that Magnet mineral are overground, reduce ore dressing energy consumption, improve Magnet mineral recovery rate.
The method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment has the advantages that after adopting technique scheme
(1) it is widely used, can be applicable to the flash magnetic concentration working that the Magnet mineral in ore dressing plant reclaim or the operation of nonmetallic ore deironing；
(2) magnetite ore flash magnetic plant method for arranging, equipment is installed simple, saving of work and time；
(3) qualified magnetic iron ore can be selected in advance, improve classification efficiency, avoid magnetic iron ore overground, reduce ore dressing energy consumption, improve the magnetic iron ore response rate.
Accompanying drawing explanation
Fig. 1 is the layout of equipment of the method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment.
Accompanying drawing is labeled as: 1-ball mill；11-grinding machine feed port；12-grinding machine gape；13-magnetic separator mineral-feeding pipe groove；2-magnetic separator；21-is to ore deposit case；22-concentrate case；23-concentrate barrel；24-mine tailing mouth；25-mine tailing barrel；3-slime dam；4-ore slurry pump；41-pulp-inlet pipe；5-cyclone；51-sand setting conveying pipe；52-mineral-feeding pipe；53-spigot；54-feed port；55-overfall；56-overflow drain；6-rock feeder；61-grinding machine mineral-feeding pipe groove；7-water-main；Feed pipe before 71-；Feed pipe after 72-.
Detailed description of the invention
For describing the present invention, below in conjunction with drawings and Examples, the method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment is described in further details.
The layout of equipment of the method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment as shown in Figure 1 is found out, the method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment, containing ball mill 1, magnetic separator 2, cyclone 5, rock feeder 6 and waterworks in its unit equipment；Described waterworks are made up of water-main 7, front feed pipe 71, rear feed pipe 72.The feed end of described ball mill 1 is provided with grinding machine feed port 11, and the discharge end of ball mill 1 is provided with grinding machine gape 12；Described magnetic separator 2 cylinder feed side is provided with to ore deposit case 21, and the opposite side of magnetic separator 2 cylinder is provided with concentrate case 22, is provided with mine tailing mouth 24 bottom magnetic separator 2 cell body；The side, top of described cyclone 5 is provided with feed port 54, and the top of cyclone 5 is provided with overfall 55, and the cone base of cyclone 5 is provided with spigot 53.Rock feeder 6 is connected with the grinding machine feed port 11 of ball mill 1 by grinding machine mineral-feeding pipe groove 61, grinding machine feed port 11 is connected with the spigot 53 of cyclone 5 by sand setting conveying pipe 51, and grinding machine gape 12 is connected with the ore deposit case 21 of giving of magnetic separator 2 by magnetic separator mineral-feeding pipe groove 13；Slime dam 3, ore slurry pump 4 is set up between magnetic separator 2 and cyclone 5, the mine tailing mouth 24 of magnetic separator 2 is connected with slime dam 3 by mine tailing barrel 25, being connected by pulp-inlet pipe 41 between ore slurry pump 3 with ore slurry pump 4, ore slurry pump 4 is connected with the feed port 54 of cyclone 5 by mineral-feeding pipe 52；The overfall 55 of cyclone 5 is connected with overflow drain 56.Rear feed pipe 72 be arranged on sand setting conveying pipe 51 on, front feed pipe 71 is arranged on grinding machine gape 12, front feed pipe 71, rear feed pipe 72 import be connected with water-main 7 respectively.The concentrate case 22 of magnetic separator 2 is connected with concentrate barrel 23.
The method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment is in use, magnetite ore is fed ball mill 1 by rock feeder 6 through grinding machine mineral-feeding pipe groove 61 and ore grinding feed port 11, material is polished is discharged by grinding machine gape 12, after adding suitable quantity of water guarantee suitable concn with front feed pipe 71, feed magnetic separator 2 give ore deposit case 21, magnetic iron ore carries out flash magnetic separation under magnetic separator 2 acts on, and concentrate enters concentrate case 22 and collects, then is transported by concentrate barrel 23.Through the non-magnetic iron ore grain of magnetic separator 2, or magnetic and non-magnetic iron mineral intergrowth are mainly entered slime dam 3 by mine tailing barrel 25.Cyclone 5 is entered by ore slurry pump 4 by mineral-feeding pipe 52 then through pulp-inlet pipe 41, after cyclone 5, non-magnetic iron ore grain, or magnetic iron ore and non-magnetic mineral intergrowth be divided into two ranks of thickness, and rough grain is as sand setting.Sand setting needs to carry pipe 51 and grinding machine feed port 11 to flow into ball mill 1 and regrind through sand setting.Sand setting is carried pipe 51 to add water by rear feed pipe 72, sand setting is got excited, and regulates ore milling concentration.Particulate ore particle, discharges from overfall 55 as overflow, through liquid stream discharge pipe 56 for next ore-dressing practice.
The method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment, equipment is installed simple, flexible, the graded operation of ore dressing plant difference occasion can be met, can select qualified magnetic iron ore in advance, improve classification efficiency, avoid that magnetic iron ore is overground, reduce ore dressing energy consumption, improve the magnetic iron ore response rate.
The method for arranging of the present invention a kind of magnetite ore flash magnetic separation unit equipment is applied in certain Designing Ore-Dressing Plants, grading effect is very good, when to ore deposit grade 32.3%, it is possible to obtain the qualified strong magnet concentrate of productivity 16.8%, Iron grade more than 65.5% in advance.
Claims (2)
1. a method for arranging for magnetite ore flash magnetic separation unit equipment, containing ball mill (1), magnetic separator (2), cyclone (5), rock feeder (6) and waterworks in its unit equipment；The feed end of described ball mill (1) is provided with grinding machine feed port (11), and the discharge end of ball mill (1) is provided with grinding machine gape (12)；Described magnetic separator (2) cylinder feed side is provided with to ore deposit case (21), the opposite side of magnetic separator (2) cylinder is provided with concentrate case (22), is provided with mine tailing mouth (24) bottom magnetic separator (2) cell body；The side, top of described cyclone (5) is provided with feed port (54), the top of cyclone (5) is provided with overfall (55), the cone base of cyclone (5) is provided with spigot (53), it is characterized in that: described rock feeder (6) is connected with the grinding machine feed port (11) of ball mill (1) by grinding machine mineral-feeding pipe groove (61), grinding machine feed port (11) is connected with the spigot (53) of cyclone (5) by sand setting conveying pipe (51), grinding machine gape (12) is connected with the ore deposit case (21) of giving of magnetic separator (2) by magnetic separator mineral-feeding pipe groove (13)；Slime dam (3), ore slurry pump (4) is set up between magnetic separator (2) and cyclone (5), the mine tailing mouth (24) of magnetic separator (2) is connected with slime dam (3) by mine tailing barrel (25), being connected by pulp-inlet pipe (41) between ore slurry pump (3) with ore slurry pump (4), ore slurry pump (4) is connected with the feed port (54) of cyclone (5) by mineral-feeding pipe (52)；The overfall (55) of cyclone (5) is connected with overflow drain (56).
2. the method for arranging of a kind of magnetite ore flash magnetic separation unit equipment as claimed in claim 1, it is characterized in that: described waterworks are made up of water-main (7), front feed pipe (71), rear feed pipe (72), rear feed pipe (72) is arranged on sand setting conveying pipe (51), front feed pipe (71) is arranged on grinding machine gape (12), front feed pipe (71), rear feed pipe (72) import be connected with water-main (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221341.0A CN105772211B (en) | 2016-04-08 | 2016-04-08 | A kind of method for arranging of magnetite ore magnetic separation unit equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610221341.0A CN105772211B (en) | 2016-04-08 | 2016-04-08 | A kind of method for arranging of magnetite ore magnetic separation unit equipment |
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| Publication Number | Publication Date |
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| CN105772211A true CN105772211A (en) | 2016-07-20 |
| CN105772211B CN105772211B (en) | 2018-07-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944248A (en) * | 2017-04-13 | 2017-07-14 | 中钢集团马鞍山矿山研究院有限公司 | A kind of beneficiation method of the compound iron ore of hydrochlorate containing high-carbon |
| CN106964480A (en) * | 2017-04-13 | 2017-07-21 | 中钢集团马鞍山矿山研究院有限公司 | A kind of fine grinding hierarchical composition new technology sorted suitable for micro fine particle magnetite stone |
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| JPH0422976B2 (en) * | 1986-06-11 | 1992-04-21 | Nippon Jiryoku Senko | |
| CN101612618A (en) * | 2008-06-27 | 2009-12-30 | 鞍钢集团矿业公司 | Process for discarding coarse tailings with primary sand return for ultralean magnetite ores |
| CN102580843A (en) * | 2012-02-22 | 2012-07-18 | 攀钢集团矿业有限公司 | Mineral separation method for vanadium-titanium magnetite ores |
| CN102921523A (en) * | 2012-12-03 | 2013-02-13 | 云南磷化集团有限公司 | Method for improving grinding efficiency and classification efficiency |
| CN105214830A (en) * | 2015-11-09 | 2016-01-06 | 攀钢集团矿业有限公司 | Magnetic mineral stage division |
-
2016
- 2016-04-08 CN CN201610221341.0A patent/CN105772211B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422976B2 (en) * | 1986-06-11 | 1992-04-21 | Nippon Jiryoku Senko | |
| CN101612618A (en) * | 2008-06-27 | 2009-12-30 | 鞍钢集团矿业公司 | Process for discarding coarse tailings with primary sand return for ultralean magnetite ores |
| CN102580843A (en) * | 2012-02-22 | 2012-07-18 | 攀钢集团矿业有限公司 | Mineral separation method for vanadium-titanium magnetite ores |
| CN102921523A (en) * | 2012-12-03 | 2013-02-13 | 云南磷化集团有限公司 | Method for improving grinding efficiency and classification efficiency |
| CN105214830A (en) * | 2015-11-09 | 2016-01-06 | 攀钢集团矿业有限公司 | Magnetic mineral stage division |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944248A (en) * | 2017-04-13 | 2017-07-14 | 中钢集团马鞍山矿山研究院有限公司 | A kind of beneficiation method of the compound iron ore of hydrochlorate containing high-carbon |
| CN106964480A (en) * | 2017-04-13 | 2017-07-21 | 中钢集团马鞍山矿山研究院有限公司 | A kind of fine grinding hierarchical composition new technology sorted suitable for micro fine particle magnetite stone |
| CN106944248B (en) * | 2017-04-13 | 2018-11-16 | 中钢集团马鞍山矿山研究院有限公司 | A kind of beneficiation method of the compound iron ore of hydrochlorate containing high-carbon |
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| CN105772211B (en) | 2018-07-03 |
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Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Address before: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH Co.,Ltd. |
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