CN105233977A - Tailing recovery process adopting magnetic separation-circulating roasting-regrinding and magnetic separation method - Google Patents

Tailing recovery process adopting magnetic separation-circulating roasting-regrinding and magnetic separation method Download PDF

Info

Publication number
CN105233977A
CN105233977A CN201510742974.1A CN201510742974A CN105233977A CN 105233977 A CN105233977 A CN 105233977A CN 201510742974 A CN201510742974 A CN 201510742974A CN 105233977 A CN105233977 A CN 105233977A
Authority
CN
China
Prior art keywords
magnetic
sections
concentrate
feeds
weak
Prior art date
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
Application number
CN201510742974.1A
Other languages
Chinese (zh)
Other versions
CN105233977B (en
Inventor
刘双安
杨晓峰
窦国语
宋均利
梅灿国
孟娜
唐昊
刘盛辰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Angang Group Mining Co Ltd
Original Assignee
Angang Group Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Angang Group Mining Co Ltd filed Critical Angang Group Mining Co Ltd
Priority to CN201510742974.1A priority Critical patent/CN105233977B/en
Publication of CN105233977A publication Critical patent/CN105233977A/en
Application granted granted Critical
Publication of CN105233977B publication Critical patent/CN105233977B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling
    • 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

The invention relates to a tailing recovery process adopting a magnetic separation-circulating roasting-regrinding and magnetic separation method. The tailing recovery process is characterized in that magnetic separation, third-section hydrocyclone closed circuit grinding and classification operation, circulating roasting, and regrinding and fifth-section low-intensity magnetic separation are adopted. According to the tailing recovery process disclosed by the invention, tailings in third-section low-intensity magnetic separation, fourth-section low-intensity magnetic separation and fifth-section low-intensity magnetic separation are returned to a concentration operation before roasting, and subjected to roasting, grinding and separation again, so that effective recovery for iron minerals is realized under relatively large grinding particle sizes, and the tailing grade is low, thus the good indexes of a concentrate grade of more than 63% and a metal recovery rate of more than 57% are obtained.

Description

Mine tailing technique is reclaimed in magnetic separation-circulation roasting-magnetic separation of regrinding
Technical field
The invention belongs to iron ore beneficiation technical field, mine tailing technique is reclaimed in particularly a kind of preenrichment-circulation roasting-magnetic separation of regrinding.
Background technology
Select factory to produce 10% ~ 15% of current employing " stage grinding, coarse and fine separation; weight-magnetic-floating combined process flow ", grinding particle size is iron mineral mainly russet iron and the Armco magnetic iron run off in the comprehensive mine tailing of-0.074mm60% ~ 70%, to the good technique of the current effect of the recovery of comprehensive mine tailing be: adopt two sections of spiral chutes, permanent magnetism to scan with comprehensive mine tailing, spiral shell is smart, permanent magnetism is smart is mixed into rough concentrate, again with weak magnetic, Qiang Ci after rough concentrate ore grinding, reverse flotation or centrifuge technique selected." spiral chute, permanent magnetism-ore grinding-strong magnetic, centrifuge technique " flow process is adopted to sort the comprehensive ore deposit of bloodstone, the sorting index obtained when grinding particle size is 92.5%-0.046mm is: to ore deposit grade 12.63%, concentrate grade 67.95%, concentrate yield 4.00%, the rate of recovery 21.52%, tailings grade 10.33%, but because the distributive law of the iron mineral in comprehensive mine tailing in below 0.037mm grade is up to more than 70%, distributive law wherein in below 0.01mm grade is 10% ~ 20%, and the main iron mineral granularity in comprehensive mine tailing is very thin.Therefore the comprehensive mine tailing problem that tailings grade is higher after " spiral chute, permanent magnetism-ore grinding-strong magnetic, centrifuge technique " sorts cannot solve, and causes the rate of recovery to be difficult to further raising." magnetic separation-roasting-magnetic separation process " adopts weak magnetic to sort to roasted ore again after the high intensity magnetic mineral obtained all being carried out roasting after adopt strong magnetic to sort to mine tailing, although this technique improves the rate of recovery, but because Armco magnetic iron distributive law in mine tailing is 15% ~ 40%, and this part product should not enter complex process (because needing before roasting to concentrate, filtering, oven dry etc.), energy consumption is high, cost is high roasting technique processes.
Summary of the invention
The object of this invention is to provide and a kind ofly can be mainly superfine grade to target minreal and carry out economical and effective recovery containing the mine tailing of multiple iron mineral, thus realize improving the rate of recovery, mine tailing technique is reclaimed in the magnetic separation-circulation roasting-magnetic separation of regrinding simultaneously reducing effective recovery of energy consumption.
The object of the invention is to be realized by following technical proposals:
Mine tailing technique is reclaimed in magnetic separation of the present invention-circulation roasting-magnetic separation of regrinding, the comprehensive mine tailing of-0.074mm60% ~ 70% that comprises grade that to be 10% ~ 15% granularity be feeds one section of drum magnetic separator and carries out magnetic concentration working, the mine tailing of one section of drum magnetic separator feeds one section of vertical-ring magnetic separator and carries out magnetic concentration working, the concentrate of the concentrate of one section of drum magnetic separator and one section of vertical-ring magnetic separator merges the closed circuit grinding classification operation feeding one section of cyclone and one section of ball mill and form, the overflow of one section of cyclone of granularity 90% ~ 95%-0.074mm feeds two sections of drum magnetic separators and carries out magnetic concentration working, characterized by further comprising the following step:
1) concentrate of two sections of drum magnetic separators feeds two sections of cyclones, the sand setting of two sections of cyclones feeds two sections of tower mills, the ore discharge of two sections of tower mills returns two sections of cyclones and forms closed circuit grinding system, two sections of cyclone overflows of more than granularity 80%-0.025mm feed one section of weak magnetic and sort, one section of weak magnetic tail ore deposit feeds one section of concentrator and carries out concentrated operation together with two sections of drum magnetic separator mine tailings, the overflow of one section of concentrator uses as recirculated water, concentration is that the underflow of one section of close machine of 30 ~ 40% feeds two sections of vertical-ring magnetic separators and carries out magnetic concentration working, the concentrate of two sections of vertical-ring magnetic separators feeds two sections of concentrators and carries out concentrated operation,
2) overflow of two sections of concentrators uses as recirculated water, and be that the underflow of two sections of concentrators of 55 ~ 60% feeds filter and filters by concentration, obtaining filter cake is rough concentrate, and its moisture content is 9% ~ 13%, and grade is 25 ~ 33%, productive rate is 15 ~ 20%;
3) described rough concentrate is fed suspending magnetization roasting furnace by belt and carry out suspension roasting operation; Its heating-up temperature is 500 DEG C ~ 600 DEG C, and moisture content is reached after below 2%, passes into CO reducing gas and is reduced to the Armco magnetic iron mineral of Armco magnetic iron distributive law more than 88%;
4) the Armco magnetic iron mineral of post-job for suspension roasting Armco magnetic iron distributive law more than 88% are fed the operation of three sections of cyclone closed circuit grinding classifications, the sand setting of three sections of cyclones feeds three sections of ore grindings, three sections of ore grindings adopt tower grinding machine, the ore discharge of tower mill returns three sections of cyclones and forms closed circuit grinding system, and granularity is that three sections of cyclone overflows of more than-0.025mm80% feed two sections of weak magnetic machines;
6) one section of weak magnetic machine and two sections of weak magnetic machine concentrate merging feed three sections of weak magnetic machines, the concentrate of three sections of weak magnetic machines feeds four sections of weak magnetic machines, the concentrate of four sections of weak magnetic machines feeds five sections of dehydration magnetic separators, five sections of dehydration magnetic separator concentrate are final concentrate, its concentrate grade more than 63%, metal recovery rate more than 57%, one section of vertical-ring magnetic separator, grade 5% ~ 7% true tailings is merged in two sections of vertical-ring magnetic separator mine tailings and two sections of weak magnetic tail ore deposits, three sections of weak magnetic tail ore deposits, four sections of weak magnetic tail ore deposits and five sections of weak magnetic tail ore deposit merging return two sections of two sections of concentrators and concentrate, suspension roasting and magnetic separation of regrinding form circulation roasting.
The magnetic induction intensity of one section of described drum magnetic separator is 300 ~ 500mT, the magnetic induction intensity 300 ~ 500mT of one section of vertical-ring magnetic separator.
The magnetic induction intensity of two sections of described drum magnetic separators is 150 ~ 180mT, the magnetic induction intensity 300 ~ 500mT of two sections of vertical-ring magnetic separators.
Described five sections weak magnetic machines adopt magnetovibration highly-effective magnetic separator.
Advantage of the present invention is:
The present invention reclaims mine tailing technique owing to have employed above-mentioned magnetic separation-circulation roasting-magnetic separation of regrinding, adopt three sections of weak magnetic, four sections of weak magnetic, the mine tailing of five sections of weak magnetic turns back to the concentrated operation before roasting, again carry out roasting, ore grinding, sort, can under the relatively thick grinding particle size of grinding particle size, obtain grade more than 63%, the concentrate of concentrate mineral products rate more than 10%, tailings grade less than 6%, the good index of metal recovery rate more than 57%, its rate of recovery comparatively traditional handicraft improves more than 30 percentage points, , simultaneously because one section of weak magnetic machine concentrate does not enter roasting operation, roasting operation treating capacity is made to reduce 15% ~ 40%, save energy consumption, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the flow chart that mine tailing technique is reclaimed in magnetic separation of the present invention-circulation roasting-magnetic separation of regrinding.
Detailed description of the invention
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, mine tailing technique is reclaimed in magnetic separation of the present invention-circulation roasting-magnetic separation of regrinding, the comprehensive mine tailing of-0.074mm60% ~ 70% that comprises grade that to be 10% ~ 15% granularity be feeds one section of drum magnetic separator and carries out magnetic concentration working, the mine tailing of one section of drum magnetic separator feeds one section of vertical-ring magnetic separator and carries out magnetic concentration working, the concentrate of the concentrate of one section of drum magnetic separator and one section of vertical-ring magnetic separator merges the closed circuit grinding classification operation feeding one section of cyclone and one section of ball mill and form, the overflow of one section of cyclone of granularity 90% ~ 95%-0.074mm feeds two sections of drum magnetic separators and carries out magnetic concentration working, characterized by further comprising the following step:
1) concentrate of two sections of drum magnetic separators feeds two sections of cyclones, the sand setting of two sections of cyclones feeds two sections of tower mills, the ore discharge of two sections of tower mills returns two sections of cyclones and forms closed circuit grinding system, more than granularity 80%-0.025mm, this grinding particle size is industrially easy to realize relatively, and most of strongly magnetic mineral can be made under this granularity to be separated with weak magnetic mineral and gangue, therefore two sections of cyclone overflows feed one section of weak magnetic and sort, one section of weak magnetic tail ore deposit feeds one section of concentrator and carries out concentrated operation together with two sections of drum magnetic separator mine tailings, the overflow of one section of concentrator uses as recirculated water, concentration is that the underflow of one section of close machine of 30 ~ 40% feeds two sections of vertical-ring magnetic separators and carries out magnetic concentration working, the concentrate of two sections of vertical-ring magnetic separators feeds two sections of concentrators and carries out concentrated operation, the magnetic induction intensity of one section of described drum magnetic separator is 300 ~ 500mT, the magnetic induction intensity 300 ~ 500mT of one section of vertical-ring magnetic separator, the magnetic induction intensity of two sections of described drum magnetic separators is 150 ~ 180mT, the magnetic induction intensity 300 ~ 500mT of two sections of vertical-ring magnetic separators,
2) overflow of two sections of concentrators uses as recirculated water, and be that the underflow of two sections of concentrators of 55% ~ 60% feeds filter and filters by concentration, obtaining filter cake is rough concentrate, and its moisture content is 9% ~ 13%, and grade is 25% ~ 33%, productive rate is 15 ~ 20%;
3) described rough concentrate is fed suspending magnetization roasting furnace by belt and carry out suspension roasting operation; Its heating-up temperature is 500 DEG C ~ 600 DEG C, and moisture content is reached after below 2%, passes into CO reducing gas and is reduced to the Armco magnetic iron mineral of Armco magnetic iron distributive law more than 88%;
4) the Armco magnetic iron mineral of post-job for suspension roasting Armco magnetic iron distributive law more than 88% are fed the operation of three sections of cyclone closed circuit grinding classifications, the sand setting of three sections of cyclones feeds three sections of ore grindings, three sections of ore grindings adopt tower grinding machine, the ore discharge of tower mill returns three sections of cyclones and forms closed circuit grinding system, more than grinding particle size-0.025mm80%, this grinding particle size is industrially easy to realize relatively, and most of strongly magnetic mineral can be made under this granularity to be separated with weak magnetic mineral and gangue, therefore three sections of cyclone overflows feed two sections of weak magnetic machines;
6) one section of weak magnetic machine and two sections of weak magnetic machine concentrate merging feed three sections of weak magnetic machines, the concentrate of three sections of weak magnetic machines feeds four sections of weak magnetic machines, the concentrate of four sections of weak magnetic machines feeds five sections of dehydration magnetic separators, described five sections weak magnetic machines adopt magnetovibration highly-effective magnetic separator, five sections of dehydration magnetic separator concentrate are final concentrate, its concentrate grade more than 63%, metal recovery rate more than 57%, one section of vertical-ring magnetic separator, grade 5% ~ 7% true tailings is merged in two sections of vertical-ring magnetic separator mine tailings and two sections of weak magnetic tail ore deposits, three sections of weak magnetic tail ore deposits, the intergrowth of part strongly magnetic mineral and weak magnetic mineral and gangue is had in four sections of weak magnetic tail ore deposits and five sections of weak magnetic tail ore deposits, again through roasting, ore grinding, weak choosing can be reclaimed further to it, therefore three sections of weak magnetic tail ore deposits, four sections of weak magnetic tail ore deposits and five sections of weak magnetic tail ore deposit merging return two sections of two sections of concentrators and concentrate, suspension roasting and magnetic separation of regrinding form circulation roasting.
The present invention's five sections of magnetic machines adopt magnetovibration highly-effective magnetic separator, the feature of this equipment is: sort in district and have some magnetic-assemblying areas, Shan Zhen district, magnetic linkage is formed through magnetic-assemblying area magnetic mineral when ore pulp enters point constituency, magnetic linkage is smashed again when moving downward through Shan Zhen district again, non magnetic ore is overflowed with ascending current, like this through repeatedly gathering magnetic, dodging and shake, gangue is fully separated with iron mineral, realizes the effective recovery to superfine rank iron mineral.
The mine tailing of three sections of weak magnetic of this technique, four sections of weak magnetic, five sections of weak magnetic turns back to the concentrated operation before roasting, again carry out roasting, ore grinding, sort, can under the relatively thick grinding particle size of grinding particle size, realize the effective recovery to iron mineral, tailings grade is lower.
The parameters such as grinding particle size of the present invention, magnetic field intensity, thickness grading granularity, all will according to the character of ore, and result of study is determined by experiment.
Adopt technique of the present invention, achieve the high efficiente callback of iron in mine tailing, its rate of recovery comparatively traditional handicraft improves more than 30 percentage points.

Claims (4)

1. mine tailing technique is reclaimed in magnetic separation-circulation roasting-magnetic separation of regrinding, the comprehensive mine tailing of-0.074mm60% ~ 70% that comprises grade that to be 10% ~ 15% granularity be feeds one section of drum magnetic separator and carries out magnetic concentration working, the mine tailing of one section of drum magnetic separator feeds one section of vertical-ring magnetic separator and carries out magnetic concentration working, the concentrate of the concentrate of one section of drum magnetic separator and one section of vertical-ring magnetic separator merges the closed circuit grinding classification operation feeding one section of cyclone and one section of ball mill and form, the overflow of one section of cyclone of granularity 90% ~ 95%-0.074mm feeds two sections of drum magnetic separators and carries out magnetic concentration working, characterized by further comprising the following step:
1) concentrate of two sections of drum magnetic separators feeds two sections of cyclones, the sand setting of two sections of cyclones feeds two sections of tower mills, the ore discharge of two sections of tower mills returns two sections of cyclones and forms closed circuit grinding system, two sections of cyclone overflows of more than granularity 80%-0.025mm feed one section of weak magnetic and sort, one section of weak magnetic tail ore deposit feeds one section of concentrator and carries out concentrated operation together with two sections of drum magnetic separator mine tailings, the overflow of one section of concentrator uses as recirculated water, concentration is that the underflow of one section of close machine of 30% ~ 40% feeds two sections of vertical-ring magnetic separators and carries out magnetic concentration working, the concentrate of two sections of vertical-ring magnetic separators feeds two sections of concentrators and carries out concentrated operation,
2) overflow of two sections of concentrators uses as recirculated water, and be that the underflow of two sections of concentrators of 55% ~ 60% feeds filter and filters by concentration, obtaining filter cake is rough concentrate, and its moisture content is 9% ~ 13%, and grade is 25 ~ 33%, productive rate is 15 ~ 20%;
3) described rough concentrate is fed suspending magnetization roasting furnace by belt and carry out suspension roasting operation; Its heating-up temperature is 500 DEG C ~ 600 DEG C, and moisture content is reached after below 2%, passes into CO reducing gas and is reduced to the Armco magnetic iron mineral of Armco magnetic iron distributive law more than 88%;
4) the Armco magnetic iron mineral of post-job for suspension roasting Armco magnetic iron distributive law more than 88% are fed the operation of three sections of cyclone closed circuit grinding classifications, the sand setting of three sections of cyclones feeds three sections of ore grindings, three sections of ore grindings adopt tower grinding machine, the ore discharge of tower mill returns three sections of cyclones and forms closed circuit grinding system, and granularity is that three sections of cyclone overflows of more than-0.025mm80% feed two sections of weak magnetic machines;
6) one section of weak magnetic machine and two sections of weak magnetic machine concentrate merging feed three sections of weak magnetic machines, the concentrate of three sections of weak magnetic machines feeds four sections of weak magnetic machines, the concentrate of four sections of weak magnetic machines feeds five sections of dehydration magnetic separators, five sections of dehydration magnetic separator concentrate are final concentrate, its concentrate grade more than 63%, metal recovery rate more than 57%, one section of vertical-ring magnetic separator, grade 5% ~ 7% true tailings is merged in two sections of vertical-ring magnetic separator mine tailings and two sections of weak magnetic tail ore deposits, three sections of weak magnetic tail ore deposits, four sections of weak magnetic tail ore deposits and five sections of weak magnetic tail ore deposit merging return two sections of two sections of concentrators and concentrate, suspension roasting and magnetic separation of regrinding form circulation roasting.
2. mine tailing technique is reclaimed in magnetic separation according to claim 1-circulation roasting-magnetic separation of regrinding, and it is characterized in that the magnetic induction intensity of one section of described drum magnetic separator is 300 ~ 500mT, the magnetic induction intensity 300 ~ 500mT of one section of vertical-ring magnetic separator.
3. mine tailing technique is reclaimed in magnetic separation according to claim 1-circulation roasting-magnetic separation of regrinding, and it is characterized in that the magnetic induction intensity of two sections of described drum magnetic separators is 150 ~ 180mT, the magnetic induction intensity 300 ~ 500mT of two sections of vertical-ring magnetic separators.
4. mine tailing technique is reclaimed in magnetic separation according to claim 1-circulation roasting-magnetic separation of regrinding, and it is characterized in that five sections of described weak magnetic machines adopt magnetovibration highly-effective magnetic separator.
CN201510742974.1A 2015-11-05 2015-11-05 Magnetic separation recovery mine tailing technique is regrinded in magnetic separation circulation roasting Active CN105233977B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510742974.1A CN105233977B (en) 2015-11-05 2015-11-05 Magnetic separation recovery mine tailing technique is regrinded in magnetic separation circulation roasting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510742974.1A CN105233977B (en) 2015-11-05 2015-11-05 Magnetic separation recovery mine tailing technique is regrinded in magnetic separation circulation roasting

Publications (2)

Publication Number Publication Date
CN105233977A true CN105233977A (en) 2016-01-13
CN105233977B CN105233977B (en) 2017-07-28

Family

ID=55031942

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510742974.1A Active CN105233977B (en) 2015-11-05 2015-11-05 Magnetic separation recovery mine tailing technique is regrinded in magnetic separation circulation roasting

Country Status (1)

Country Link
CN (1) CN105233977B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105855020A (en) * 2016-05-27 2016-08-17 鞍钢集团矿业公司 High-pressure roller milling-dry preliminary election technology for lean magnetite ore
CN107365904A (en) * 2017-07-11 2017-11-21 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of iron ore shaft roasting magnetic separation flotation tailing recycles technique
CN107546435A (en) * 2017-07-17 2018-01-05 中航锂电(洛阳)有限公司 A kind of physical purification method of lithium ion battery recovery positive mix
CN108480036A (en) * 2018-03-07 2018-09-04 鞍钢集团矿业有限公司 A kind of method of pre-selection-roasting-magnetic heavy industry skill recycling magnetic tailing
CN108672071A (en) * 2018-05-07 2018-10-19 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of artificial magnet plants processing and speculum iron is mixed into artificial magnet and plants magnetization sorting process

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102284359A (en) * 2011-08-08 2011-12-21 鞍钢集团矿业公司 Process for roasting, stage grinding, coarse-fine grading and reselection-magnetic separation of hematite
CN102728453A (en) * 2012-06-17 2012-10-17 鞍钢集团矿业公司 New technology for sorting lean hematite and magnetite orecontaining iron carbonate
CN104128259A (en) * 2014-07-28 2014-11-05 鞍钢集团矿业公司 Simple magnetic separation process for Anshan type iron carbonate-containing lean magnetite ore
CN104437827A (en) * 2014-09-15 2015-03-25 中冶北方(大连)工程技术有限公司 Specularite dust ore dressing technology
CN104437826A (en) * 2014-09-15 2015-03-25 中冶北方(大连)工程技术有限公司 Separation technology of specularite after reduction roasting
CN104607308A (en) * 2015-01-29 2015-05-13 鞍钢集团矿业公司 Beneficiation method for high carbonate iron ore
CN104726690A (en) * 2015-03-30 2015-06-24 东北大学 Hematite-siderite-limonite mixed iron ore three-stage suspension roasting-magnetic separation method
CN104785367A (en) * 2015-04-03 2015-07-22 甘肃酒钢集团宏兴钢铁股份有限公司 Mineral separation method for pre-extraction of concentrates from roasted iron ore

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102284359A (en) * 2011-08-08 2011-12-21 鞍钢集团矿业公司 Process for roasting, stage grinding, coarse-fine grading and reselection-magnetic separation of hematite
CN102728453A (en) * 2012-06-17 2012-10-17 鞍钢集团矿业公司 New technology for sorting lean hematite and magnetite orecontaining iron carbonate
CN104128259A (en) * 2014-07-28 2014-11-05 鞍钢集团矿业公司 Simple magnetic separation process for Anshan type iron carbonate-containing lean magnetite ore
CN104437827A (en) * 2014-09-15 2015-03-25 中冶北方(大连)工程技术有限公司 Specularite dust ore dressing technology
CN104437826A (en) * 2014-09-15 2015-03-25 中冶北方(大连)工程技术有限公司 Separation technology of specularite after reduction roasting
CN104607308A (en) * 2015-01-29 2015-05-13 鞍钢集团矿业公司 Beneficiation method for high carbonate iron ore
CN104726690A (en) * 2015-03-30 2015-06-24 东北大学 Hematite-siderite-limonite mixed iron ore three-stage suspension roasting-magnetic separation method
CN104785367A (en) * 2015-04-03 2015-07-22 甘肃酒钢集团宏兴钢铁股份有限公司 Mineral separation method for pre-extraction of concentrates from roasted iron ore

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105855020A (en) * 2016-05-27 2016-08-17 鞍钢集团矿业公司 High-pressure roller milling-dry preliminary election technology for lean magnetite ore
CN107365904A (en) * 2017-07-11 2017-11-21 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of iron ore shaft roasting magnetic separation flotation tailing recycles technique
CN107365904B (en) * 2017-07-11 2019-01-25 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of iron ore shaft roasting magnetic separation flotation tailing recycling technique
CN107546435A (en) * 2017-07-17 2018-01-05 中航锂电(洛阳)有限公司 A kind of physical purification method of lithium ion battery recovery positive mix
CN108480036A (en) * 2018-03-07 2018-09-04 鞍钢集团矿业有限公司 A kind of method of pre-selection-roasting-magnetic heavy industry skill recycling magnetic tailing
CN108672071A (en) * 2018-05-07 2018-10-19 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of artificial magnet plants processing and speculum iron is mixed into artificial magnet and plants magnetization sorting process

Also Published As

Publication number Publication date
CN105233977B (en) 2017-07-28

Similar Documents

Publication Publication Date Title
CN105233976A (en) Tailing recovery process adopting preconcentration-roasting-regrinding and magnetic separation method
CN105289838B (en) Weak magnetic is selected to be calcined magnetic tailing recovery process of regrinding
CN105233974B (en) Magnetic separation recovery mine tailing technique is regrinded in fine grinding magnetic separation roasting
CN105233977A (en) Tailing recovery process adopting magnetic separation-circulating roasting-regrinding and magnetic separation method
CN103736588B (en) Efficient beneficiation method of comprehensively recovering low-grade vanadium titano-magnetite
CN104437826A (en) Separation technology of specularite after reduction roasting
CN102824956B (en) Poor hematite grading level and narrow level sorting process
CN105057089A (en) Beneficiation technology for rock-type primary ilmenite
CN106984425B (en) A kind of sub-prime classification diversion processing method of Lower Grade Micro-fine Grain tin ore
CN107096638A (en) A kind of iron ore composite ore point mill, sorting, magnetic-gravity separation technique
CN102259053A (en) Method for recovering iron resources in reverse flotation tailings
CN107321495A (en) A kind of beneficiation method of high efficiente callback particulate low-grade magnetite
CN107597430A (en) A kind of magnetic reconnection for handling iron tailings closes ore-dressing technique
CN107159445A (en) A kind of iron ore composite ore point mill, sorting, magnetic-ore flotation technique
CN106345606B (en) A method of improving magnetite separation factory's ore dressing quality and production capacity
CN107377202A (en) The beneficiation method of copper is reclaimed in a kind of slag from blowing
CN111729757A (en) Serial elutriation deep concentration process for extremely difficult-to-separate magnetite
CN108212504A (en) A kind of method that pre-selection-roasting-magnetic floats technique recycling magnetic tailing
CN109604050A (en) Environment-friendly type iron selection tailings titanium separation method
CN108816497B (en) Magnetite beneficiation process
CN111068897A (en) Fine particle magnetite beneficiation process
CN109482338A (en) A kind of beneficiation method of the narrow gradation of magnetic iron ore, the independent ore grinding of chats
CN105944833A (en) Process for stage grinding-tower milling-magnetic vibrating machine separating lean magnetite ores
CN104888940A (en) Method for treating low-grade copper-lead-zinc-iron multi-metal sulfide ores to extract valuable metals
CN103433122B (en) A kind of medium tin ore sub-prime classification and sorting technique

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
COR Change of bibliographic data
CB02 Change of applicant information

Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong

Applicant after: Anshan Iron and Steel Group Mining Co., Ltd.

Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong

Applicant before: Anshan Iron & Steel Group Mining Co., Ltd.

GR01 Patent grant
GR01 Patent grant