CN109351466A - A kind of beneficiation new process handling magnetic iron ore - Google Patents
A kind of beneficiation new process handling magnetic iron ore Download PDFInfo
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- CN109351466A CN109351466A CN201811098587.9A CN201811098587A CN109351466A CN 109351466 A CN109351466 A CN 109351466A CN 201811098587 A CN201811098587 A CN 201811098587A CN 109351466 A CN109351466 A CN 109351466A
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- 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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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Abstract
The present invention relates to a kind of beneficiation new process for handling magnetic iron ore, including one section of closed circuit grinding operation, it is characterised in that further include that one section of closed circuit grinding overflow sequence that grade is 24%~30% is fed following operations: one section mentions essence drop slag magnetic separator；Two sections of closed circuit grinding operations；Two sections mention essence drop slag magnetic separator；Multiple vibration sieve screening operation；It is dehydrated permanent magnetism machine operation；Three sections of grinding operations；The ore discharge of three sections of ore grindings mentions essence drop slag magnetic separator back to two sections；Three sections are fed under multiple vibration sieve sieve mentions essence drop slag magnetic separator；Electromagnetism eluriates refiner；It is final concentrate product that electromagnetism, which eluriates 66%~67.5% concentrate grade that refiner obtains, and the tailing of all magnetic concentration workings merges into true tailings, grade 7%~14%.The invention has the advantages that concentrate grade improves 0~2%, and tailings grade reduces by 0~0.5% in the case where head grade is constant；Using new equipment, four stages of magnetic separation and one section of dusting cover operation, simplification of flowsheet are eliminated；Reduce iron ore concentrate unit cost；Stable equipment operation.
Description
Technical field
The invention belongs to technical field of beneficiation, and in particular to a kind of ore dressing for the processing magnetic iron ore that process greatly simplifies is new
Technique.
Background technique
There are two main classes for the domestic technique journey for handling single magnetic iron ore at present: one kind is the single magnetic separation-of stage grinding-
Fine screening-regrinding technology process.The process flow is applied relatively early at home, and Technical comparing is mature, typically there is processing Anshan type magnetic
The The Great Hermit Hill dressing plant and Gongchangling Tails dressing plant of iron ore, process flow is relative complex tediously long, and each section of tailing is not easy to control, ore dressing
It is at high cost；Another kind of is the joint sorting process stream using stage grinding, low intensity magnetic separation, gravity treatment, flotation, high intensity magnetic separation appropriate combination
Journey.There is illusion, half mushketovite, while also with a small amount of primarily with respect to there are segment magnet ore oxidation in the technique
The magnetic iron ore of the weak magnetic minerals such as bloodstone, because although such ore belongs to magnetic iron ore, but ore dressing difficulty is larger, should
Process flow is at the scene using less in actual production.
Certain domestic typical magnetite separation factory uses the single magnetic separation-Fine screening-regrinding technology of stage grinding-, in Beneficiation flowsheet
Have three sections of grinding operations, nine stages of magnetic separation operations and two sections of dusting cover operations, technical indicator as follows: head grade 24~30% obtains
Final concentrate grade 65.5~67%, tailings grade 7~15%, tailing magnetism iron content 0.7~1.5%.
The process flow is clearly present following problem and shortage: 1) sorting that number of segment is more, and process flow complexity is tediously long；2) it produces
Operation control management is inconvenient, and each section of tailing is not easy to control, and index is easy fluctuation, influences normally to produce；3) beneficiation cost is higher etc.
Drawback.
Summary of the invention
The object of the present invention is to provide a kind of beneficiation new process for the processing magnetic iron ore that process greatly simplifies.
The present invention is implemented as follows:
A kind of beneficiation new process of processing magnetic iron ore of the invention, one section including being made of scalping and primary grinding is closed
Road grinding operation, it is characterised in that scalping overflow sequence feeds following operations: one section mentions essence drop slag magnetic concentration working, and one section mentions
The concentrate of essence drop slag magnetic concentration working feeds two sections of closed circuit grinding operations being made of secondary grading and secondary grinding, and secondary grading overflows
Stream feeds two sections and mentions essence drop slag magnetic concentration working, and two sections of concentrate for mentioning essence drop slag magnetic concentration working feed multiple vibration and sieve, on the sieve of multiple vibration sieve
Product feeds dehydration magnetic concentration working, and the concentrate for being dehydrated magnetic concentration working feeds three sections of ore grindings, and the ore discharge of three sections of ore grindings returns to two sections
Essence drop slag magnetic concentration working is mentioned, the undersize of multiple vibration sieve feeds three sections and mentions essence drop slag magnetic concentration working and eluriate operation, eluriates operation
Concentrate be final concentrate, the tailing of all magnetic concentration workings merges into true tailings.
Described one section mentions essence drop slag magnetic concentration working and mentions essence drop slag magnetic separator using one section, described two sections mention essence drop slag
Magnetic concentration working mentions essence drop slag magnetic separator using two sections, using dehydration permanent magnetic motor, described three sections mention the dehydration magnetic concentration working
Essence drop slag magnetic concentration working mentions essence drop slag magnetic separator using three sections, the elutriation operation eluriates refiner using electromagnetism,；
24 %~30% of scalping overflow grade is less than 0.074mm grain size content 55%~65%；One section mentions essence drop slag magnetic separator
Tailings grade 6~12%, one section mention essence drop slag magnetic separator 42 %~50% of concentrate grade.
Secondary grading overflow is less than 0.074mm grain size content 85%~92%, and two sections mention the concentrate grade that slag magnetic separator drops in essence
55~62%, two sections mention the tailings grade 8~15% that slag magnetic separator drops in essence, and the oversize of multiple vibration sieve is less than 0.074mm grade and contains
Amount 50~70%, the undersize of multiple vibration sieve are less than 0.074mm grain size content and are greater than 97%；
Three sections mention essence drop slag magnetic separator tailings grade 8~15%, three sections mention essence drop slag magnetic separator concentrate grade 64.5%~
66.5%, the tailings grade 9~16% of wash mill, the concentrate of wash mill is final concentrate, 66 %~67.5% of grade；One section mentions
Essence drop slag magnetic separator tailing, two sections mention essence drop slag magnetic separator tailings, be dehydrated permanent magnetic motor tailing, three sections mention essence drop slag magnetic separation
The tailing of machine and the tailing of wash mill merge into true tailings, 7 %~14% of grade, magnetic iron content 0.7%~1.5%.
Described mentions essence drop slag magnet separator magnetic induction 3000Gs~4000Gs.
0~the 3000Gs of elutriation electromechanical magnetic field magnetic induction intensity is adjustable.
Described multiple vibration sieve screen size (long 0.075~0.15mm) × (wide 0.15~0.3mm) the long pass.
The analysis on its rationality of the present invention selection novel magnetic separation and screening plant:
1. mentioning essence drop slag magnetic separator:
Mentioning essence drop slag magnetic separator, there is high magnetic field intensity (3000~5000Gs), big disk pack angle (150~260 °), the last 8 to rinse
The advantages such as water, top bath and magnetic agitation device.When ore pulp enters sorting area, since various mineral specific susceptibilities are different,
Under the magneticaction of magnetic field, strongly magnetic mineral is attracted on cylinder surface, with roller adverse current rotation after rinse water rinses
It takes drum overhead to, is detached from after magnetic system and enters concentrate case by the double-deck scraper plate effect；Intergrowth and weak magnetic mineral cannot be by magnetic
Gravitational attraction, in groove body under the action of flow of slurry, gravity flow enters tailing ore discharge pipe.The equipment mainly replaces original in applying at the scene
Permanent-magnet drum type magnetic separator.
2. electromagnetism eluriates refiner:
It is a kind of by magnetic force, gravity and hydraulic forces that electromagnetism, which eluriates the refiner equipment, by electromagnetism magnetic system and to electric current,
The control of water flow, concentration forms a kind of multiple variable force field inside refiner, the magnetic mineral in ore pulp is made to generate adequately group
Poly- dispersion-agglomeration, so that iron ore concentrate be made effectively to be purified, reject fine fraction impurity and more coarsely graded intergrowth and
Gangue mineral.It is main by adjusting fixed magnetic field, circulation magnetic field, compensation magnetic field parameter size and adjusting during field application
The means such as underflow density, effluent concentration, water valve aperture adjust production target.The equipment mainly replaces magnetic force in applying at the scene
It is dehydrated slot equipment.
3. multiple vibration sieve
The screen(ing) machine vibration of multiple vibration sieve is combined by both complete machine straight-line oscillation and the vibration of electromagnetic exciting sieve.Lower screen electromagnetism
The shaker arm vibration of vibration excitor and vibrational system drive arrangement below sieve；Upper screen is under the driving of two vibrating motors
It moves in a straight line, straight-line oscillation amplitude is big, plays the role of throwing to material.The equipment has the characteristics that the high advantage of screening efficiency,
MVS electric and magnetic oscillation vibration sieve is mainly replaced in application at the scene.
The analysis on its rationality of novel magnetic separation equipment riding position and technical indicator of the present invention
In order to improve the efficiency that sorts of each section of sorting operation, simplified and optimization technological process reduces iron ore concentrate unit cost, this hair
Bright introduction domestically leading magnetic separation and screening plant mention essence drop slag magnetic separator, electromagnetism eluriates refiner, the multiple sieve that shakes is applied to industry
Production.Before being applied to industrial production, detailed commerical test has been carried out.In the premise for keeping former grinding grading technique motionless
Under, firstly, new equipment and original equipment comparative test (mention essence drop slag magnetic by under equal conditions (feed preparation unit size, concentration are constant)
Select machine and permanent-magnet drum type magnetic separator, electromagnetism wash mill and magnetic force dehydration slot, multiple vibration sieve and MVS electric and magnetic oscillation vibration sieve), it is determined that
New equipment has than original equipment sorts high-efficient advantage；Secondly, proposing smart drop according to testing to find out respectively the characteristics of new equipment
The optimum position that slag magnetic separator and electromagnetism wash mill are placed, high field intensity mention essence drop slag magnetic separator have upgrading effect is good, tail product are low,
Throw the high feature of tail rate, before placing it in sieve, electromagnetism wash mill be suitable for it is selected, be placed on the position that makes a final check, final stage
Proposing purpose after essence drop slag magnetic separator is placed on before electromagnetism wash mill vibration sieve undersize again is to stablize electromagnetism wash mill to mine
Grade and concentration are stablized to guarantee final concentrate index；Again, new equipment parameters are adjusted by long-term industrial production, always
Bear the optimal operational condition parameter of new equipment and the product quality situation of acquisition；Finally, determine final process flow, i.e., three
Section ore grinding, five sections sort, one section of dusting cover process flow.
One section of drop slag machine sorting result: in head grade 24~30%, primary overflow granularity -0.074mm grain size content 55%
Under the conditions of~65%, concentrate grade 42~50%, tailings grade 6~12%, tailing magnetism iron content are sorted by one section of drop slag machine
0.5~1.2%；
Two sections of drop slag machine sorting results: in secondary overflow granularity -0.074mm grain size content 85~92%, pan feeding grade 42~50%,
Concentrate grade 55~62%, tailings grade 8~15%, tailing magnetism iron content 0.6~2% are sorted through two sections of drop slag machines；
Multiple vibration sieve screening efficiency: two sections of drop slag machine concentrate feed multiple vibration and sieve, feed preparation unit size -0.074mm grain size content 80~92%,
It can get oversize granularity -0.074mm grain size content 50~70%, through-screen size -0.074mm grain size content is greater than
97%, undersize grade 62~66%, screening efficiency 45~70%；
Three sections of drop slag machine sorting results: giving mine grade 62~66%, through three sections of drop slag machines sort available concentrate grade 64.5~
66.5%, tailings grade 8~15%, tailing magnetism iron content 1~5%；
Electromagnetism wash mill sorting result: mine grade 64.5~66.5% is being given, is sorting available final concentrate grade 66 through wash mill
%~67.5%, wash mill tailings grade 8~15%, tailing magnetism iron content 1~6%；
Using process flow of the invention, under the conditions of head grade 24~30%, available 66 % of final concentrate grade~
67.5%, comprehensive tailings grade 7~15%, the technical indicator of tailing magnetism iron content 0.6~1.5%；With prior art process phase
Than concentrate grade slightly improves, and tailings grade slightly reduces.
The present invention compared with technique compared to the advantages of be:
1) domestically leading magnetic separation and screening plant are mentioned essence drop slag magnetic separator, electromagnetism wash mill and multiple vibration sieve and are introduced by the present invention
In process flow, in the case where head grade is constant, concentrate grade improves 0~2 percentage point, and tailings grade reduces by 0~0.5
Percentage point, metal recovery rate slightly improves；
2) present invention is shorten to present five stages of magnetic separation operations and one section of screening by former nine stages of magnetic separation operations and two sections of dusting cover operations
Operation enormously simplifies process flow；
3) present invention considerably reduces beneficiation cost, remarkable in economical benefits, and unit iron ore concentrate cost is dropped by 450 yuan/ton or more
Down to 430 yuan/ton or less；
4) new equipment is stable, high degree of automation, guarantees equipment long-term operation, reduces post operation maintenance.
Detailed description of the invention
Fig. 1 is the single magnetic separation process flow chart of former stage grinding-spun yarn evenness-.
Fig. 2 is process flow chart of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment
It is as shown in Figure 2: a kind of beneficiation new process of processing magnetic iron ore of the invention, including one section of closed circuit grinding operation,
Characterized by further comprising the following steps:
Specific data instance 1:
It 1) is 25.5 % by grade, granularity feeds magnetic for one section of closed circuit grinding overflow product that -0.074mm grain size content accounts for 55%
Induction is that one section of JCTN1240 of 4000Gs mentions essence drop slag magnetic separator, and grade is that one section of 7.8% proposes essence drop slag magnetic separation
The tailing of machine throws tail, and grade feeds two sections of closed circuit grinding operations for one section of concentrate for mentioning essence drop slag magnetic separator of 46.5 %；
It 2) is that -0.074mm grain size content accounts for 88% two sections of closed circuit grinding overflow products and feeds magnetic induction intensity and be by granularity
Two sections of the JCTN1240 of 3500Gs mention essence drop slag magnetic separator, and two sections of tailings for mentioning essence drop slag magnetic separator that grade is 11.5% are thrown
Tail, two sections of concentrate for mentioning essence drop slag magnetic separator that grade is 59.4% feed the multiple vibration sieve that specification is 2020, produce on the sieve of multiple vibration sieve
Product feed dehydration permanent magnetic motor, and the tailing for being dehydrated permanent magnetic motor throws tail, and the concentrate for being dehydrated permanent magnetic motor feeds three sections of ore grindings, and granularity is-
0.074mm grain size content accounts for the ore discharges of 70% three sections of ore grindings and mentions essence drop slag magnetic separator back to two sections, and grade is 64.63% to answer
Shake sieve undersize as three sections mention essence drop slag magnetic separator to mine；
3) three sections that the undersize of multiple vibration sieve is fed the JCTN1240 that magnetic induction intensity is 3000Gs propose essence drop slag magnetic separation
Machine, grade are the tailing throwing tail that tri- sections of 12.6 % mentions essence drop slag magnetic separator, and grade is that three sections of 65.89 % mention essence drop slag magnetic separator
Concentrate feed specifications and models be TCXJ-16 electromagnetism eluriate refiner, grade be 13.2% electromagnetism eluriate refiner tailing
Tail is thrown, the concentrate that the electromagnetism that grade is 66.31 % eluriates refiner is final concentrate；
One section mention essence drop slag magnetic separator tailing, two sections mention essence drop slag magnetic separator tailings, be dehydrated permanent magnetic motor tailing, three sections mention
The tailing that the tailing and electromagnetism of essence drop slag magnetic separator eluriate refiner merges into true tailings, and grade 9.1%, Armco magnetic iron contains
Amount 0.9%.
Embodiment 2:
It 1) is 27.5% by grade, granularity feeds magnetic strength for one section of closed circuit grinding overflow product that -0.074mm grain size content accounts for 58%
Answering intensity is that one section of JCTN1240 of 4000Gs mentions essence drop slag magnetic separator, and grade is that one section of 6.7% mentions essence drop slag magnetic separator
Tailing throw tail, grade is that one section of the 48.2 % concentrate for mentioning essence drop slag magnetic separator feeds two sections of closed circuit grinding operations；
It 2) is that -0.074mm grain size content accounts for 90% two sections of closed circuit grinding overflow products and feeds magnetic induction intensity and be by granularity
Two sections of the JCTN1240 of 3500Gs mention essence drop slag magnetic separator, and two sections of tailings for mentioning essence drop slag magnetic separator that grade is 9.5% are thrown
Tail, two sections of concentrate for mentioning essence drop slag magnetic separator that grade is 61.42% feed the multiple vibration sieve that specification is 2020, again on the sieve of vibration sieve
Product feeds dehydration permanent magnetic motor, and the tailing for being dehydrated permanent magnetic motor throws tail, and the concentrate for being dehydrated permanent magnetic motor feeds three sections of ore grindings, and granularity is-
0.074mm grain size content accounts for the ore discharges of 75% three sections of ore grindings and mentions essence drop slag magnetic separator back to two sections, and grade is 65.33% to answer
Shake sieve undersize as three sections mention essence drop slag magnetic separator to mine；
3) three sections that the undersize of multiple vibration sieve is fed the JCTN1240 that magnetic induction intensity is 3000Gs propose essence drop slag magnetic separation
Machine, grade are that 10.5% 3 section of tailing for mentioning essence drop slag magnetic separator throws tail, and grade is three sections of 66.31% and mentions essence drop slag magnetic separator
Concentrate feeds the electromagnetism that specifications and models are TCXJ-16 and eluriates refiner, and the tailing that the electromagnetism that grade is 12.6% eluriates refiner is thrown
Tail, the concentrate that the electromagnetism that grade is 67.15 % eluriates refiner is final concentrate；
One section mention essence drop slag magnetic separator tailing, two sections mention essence drop slag magnetic separator tailings, be dehydrated permanent magnetic motor tailing, three sections mention
The tailing that the tailing and electromagnetism of essence drop slag magnetic separator eluriate refiner merges into true tailings, and grade 8.6%, Armco magnetic iron contains
Amount 0.8%.
Embodiment 3:
It 1) is 24.5% by grade, granularity feeds magnetic for one section of closed circuit grinding overflow product that -0.074mm grain size content accounts for 56.5%
Induction is that one section of JCTN1240 of 4000Gs mentions essence drop slag magnetic separator, and grade is that one section of 7.6% proposes essence drop slag magnetic separation
The tailing of machine throws tail, and grade feeds two sections of closed circuit grinding operations for one section of concentrate for mentioning essence drop slag magnetic separator of 44.2 %；
It 2) is that -0.074mm grain size content accounts for 87.5% two sections of closed circuit grinding overflow products and feeds magnetic induction intensity and be by granularity
Two sections of the JCTN1240 of 3500Gs mention essence drop slag magnetic separator, and two sections of tailings for mentioning essence drop slag magnetic separator that grade is 9.8% are thrown
Tail, two sections of concentrate for mentioning essence drop slag magnetic separator that grade is 57.93% feed the multiple vibration sieve that specification is 2020, again on the sieve of vibration sieve
Product feeds dehydration permanent magnetic motor, and the tailing for being dehydrated permanent magnetic motor throws tail, and the concentrate for being dehydrated permanent magnetic motor feeds three sections of ore grindings, and granularity is-
0.074mm grain size content accounts for the ore discharges of 65% three sections of ore grindings and mentions essence drop slag magnetic separator back to two sections, and grade is 64.22% to answer
Shake sieve undersize as three sections mention essence drop slag magnetic separator to mine；
3) three sections that the undersize of multiple vibration sieve is fed the JCTN1240 that magnetic induction intensity is 3000Gs propose essence drop slag magnetic separation
Machine, grade are that 10.5% 3 section of tailing for mentioning essence drop slag magnetic separator throws tail, and grade is three sections of 65.96% and mentions essence drop slag magnetic separator
Concentrate feeds the electromagnetism that specifications and models are TCXJ-16 and eluriates refiner, and the tailing that the electromagnetism that grade is 13.2% eluriates refiner is thrown
Tail, the concentrate that the electromagnetism that grade is 66.45 % eluriates refiner is final concentrate；
One section mention essence drop slag magnetic separator tailing, two sections mention essence drop slag magnetic separator tailings, be dehydrated permanent magnetic motor tailing, three sections mention
The tailing that the tailing and electromagnetism of essence drop slag magnetic separator eluriate refiner merges into true tailings, and grade 9.6%, Armco magnetic iron contains
Amount 0.85%.
Claims (8)
1. a kind of beneficiation new process for handling magnetic iron ore, including one section of closed circuit grinding being made of scalping and primary grinding
Operation, it is characterised in that scalping overflow sequence feeds following operations: one section mentions essence drop slag magnetic concentration working, and one section mentions essence drop slag
The concentrate of magnetic concentration working feeds two sections of closed circuit grinding operations being made of secondary grading and secondary grinding, and secondary grading overflow is fed
Two sections mention essence drop slag magnetic concentration working, and two sections of concentrate for mentioning essence drop slag magnetic concentration working feed multiple vibration sieve, and the oversize of multiple vibration sieve is given
Enter to be dehydrated magnetic concentration working, the concentrate for being dehydrated magnetic concentration working feeds three sections of ore grindings, and the ore discharge of three sections of ore grindings proposes smart drop back to two sections
Slag magnetic concentration working, the undersize of multiple vibration sieve feed three sections and mention essence drop slag magnetic concentration working and eluriate operation, eluriate the concentrate of operation
Tailing for final concentrate, all magnetic concentration workings merges into true tailings.
2. the beneficiation new process of processing magnetic iron ore according to claim 1, it is characterised in that described one section proposes smart drop
Slag magnetic concentration working mentions essence drop slag magnetic separator using one section, and described two sections mention essence drop slag magnetic concentration working and mention essence drop slag magnetic using two sections
Machine is selected, using dehydration permanent magnetic motor, described three sections mention essence drop slag magnetic concentration working and propose essence using three sections the dehydration magnetic concentration working
Slag magnetic separator drops, and the elutriation operation uses wash mill.
3. the beneficiation new process of processing magnetic iron ore according to claim 2, it is characterised in that scalping overflow grade
24 %~30%, granularity are -0.074mm grain size content 55%-65%；One section mention essence drop slag magnetic separator tailings grade 6~12%, one
42 %~50% of concentrate grade of Duan Tijing drop slag magnetic separator.
4. the beneficiation new process of processing magnetic iron ore according to claim 2, it is characterised in that secondary grading overflow granularity
85%~92% is accounted for for -0.074mm content, two sections mention 42 %~50% of concentrate grade that slag magnetic separator drops in essence, and two sections mention essence drop slag magnetic
The tailings grade 8~15% of machine is selected, the oversize granularity -0.074mm grain size content 50~70% of multiple vibration sieve, again under the sieve of vibration sieve
97% or more product granularity -0.074mm grain size content.
5. the beneficiation new process of processing magnetic iron ore according to claim 2, it is characterised in that three sections propose essence drop slag magnetic separation
The tailings grade 8~15% of machine, three sections mention the concentrate grade 64.5%~66.5 that slag magnetic separator drops in essence, the tailings grade 8 of wash mill
~15%, the concentrate of wash mill is final concentrate, 66 %~67.5% of grade；One section mentions the tailing of essence drop slag magnetic separator, two sections
Mention essence drop slag magnetic separator tailing, be dehydrated permanent magnetic motor tailing, three sections mention essence drop slag magnetic separator tailing and wash mill tailing
True tailings is merged into, grade is 7 %~15%, magnetic iron content 0.7%~1.5%.
6. a kind of beneficiation new process for handling magnetic iron ore according to claim 1, it is characterised in that described proposes smart drop
Slag magnet separator magnetic induction is 3000Gs~4000Gs.
7. a kind of beneficiation new process for handling magnetic iron ore according to claim 1, it is characterised in that the electromagnetism is washed in a pan
0~3000Gs of washing machine magnetic induction intensity is adjustable.
8. a kind of beneficiation new process for handling magnetic iron ore according to claim 1, it is characterised in that the multiple vibration sieve
Screen size (long 0.075~0.15mm) × (wide 0.15~0.3mm) long pass is adjustable.
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| CN112076890A (en) * | 2020-08-14 | 2020-12-15 | 武钢资源集团有限公司 | Magnetite sorting method and system |
| CN112337621A (en) * | 2020-10-13 | 2021-02-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Production process and equipment of high-grade vanadium-titanium magnetite concentrate |
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| CN112076890A (en) * | 2020-08-14 | 2020-12-15 | 武钢资源集团有限公司 | Magnetite sorting method and system |
| CN112076890B (en) * | 2020-08-14 | 2022-06-24 | 武钢资源集团金山店矿业有限公司 | Magnetite sorting method and system |
| CN112337621A (en) * | 2020-10-13 | 2021-02-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Production process and equipment of high-grade vanadium-titanium magnetite concentrate |
| CN112337621B (en) * | 2020-10-13 | 2023-02-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Production process and equipment of high-grade vanadium-titanium magnetite concentrate |
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Application publication date: 20190219 |