CN106076605A - Fluorite ore scavenging, selecting, desliming and sorting method - Google Patents
Fluorite ore scavenging, selecting, desliming and sorting method Download PDFInfo
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- CN106076605A CN106076605A CN201610634558.4A CN201610634558A CN106076605A CN 106076605 A CN106076605 A CN 106076605A CN 201610634558 A CN201610634558 A CN 201610634558A CN 106076605 A CN106076605 A CN 106076605A
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- concentrate
- chats
- primary
- scavenging
- ore
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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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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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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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a fluorite ore scavenging, selecting, desliming and sorting method, which is carried out according to the following steps: (1) the raw ore is subjected to primary coarse grinding and rough concentration to obtain primary tailings and primary concentrate; (2) scavenging the primary tailings to obtain tailings and scavenged concentrate; (3) after the primary concentrate is subjected to concentration 1, one part of the primary concentrate is subjected to concentration 2 to obtain middling 2 and secondary concentrate, after secondary concentrate is subjected to secondary regrinding, the secondary concentrate is subjected to concentration 3, one part of the secondary concentrate is subjected to middling 3, and the other part of the secondary concentrate is subjected to subsequent multi-section concentration to obtain concentrate and subsequent middling; (4) concentrating and desliming middlings 1, middlings 2 and scavenging concentrate to obtain a part of fine mud tailings, scavenging and concentrating the other part of fine mud tailings and scavenging and concentrating concentrate, performing rough concentration on the scavenging and concentrating concentrate again, and discharging the scavenging and concentrating tailings serving as final tailings; (5) the middlings 3 and the subsequent middlings are separated and returned. The invention is easy to control, shortens the number of fine selection sections and improves the concentrate grade.
Description
Technical field
The invention belongs to technical field of mineral processing, relate to a kind of fluorite ore ore-dressing technique, be particularly suited for low-grade, mud
Change complicated difficult serious, that disseminated grain size is uneven and select fluorite ore.
Background technology
Fluorite is a kind of nonmetal mineral resource with strategic importance, and application contains metallurgy, chemical industry, building materials, pottery
Conventional industries and the new industries such as porcelain, atomic energy industry, fluorination work.China orientates fluorite as " eshaustibility in policy aspect
And non-renewable precious resources ", in industry, then fluorite is called " the second rare earth ", and the country such as the U.S., Europe is also classified as war
Slightly property mineral, maintain storage level on certain level every year.As important Strategic Mineral Resources, the valency of fluorite resource
It is worth self-evident.
China's fluorite resource enrich, fluorite basic unit price 1.1 hundred million tons, account for the whole world reserves 60%, but China's fluorite resource
Average grade relatively low, for the fluorite ore raw with metallic ore companion (be total to), the grade of ore typically only 7%~20%, composition is again
Miscellaneous, to sort difficulty big.Along with the fast development of national economy, the demand of fluorite ore increases day by day, the quality to fluorite concentrate
Require also to grow with each passing day.
In terms of fluorite ore ore-dressing technique, " stage grinding, multistage selected, chats sequentially return " technique is fluorite
Main process and tradition dressing method.As it is shown in figure 1, the fluorite ore of prior art is swept in method for concentrating, raw ore first passes through one section
Corase grind, roughly select after obtain primary mine tailing and primary concentrate;Primary concentrate obtains chats 1, another part through selected 1 rear portion
Through selected 2, the product part after selected 2 is chats 2, another part essence is rough regrinds and selected 3 through two-stage nitration, passes through
A product part after selected 3 is that chats 3, another part obtain concentrate and follow-up chats through follow-up multistage is selected;Primary tail
Ore deposit obtains scavenger concentrate and mine tailing, chats 1 and scavenger concentrate return after scanning and roughly selects, and chats 2, chats 3, follow-up chats
Then order returns.The fluorite mineral that this method is serious to argillization, disseminated grain size is uneven sort bad adaptability, and shale mineral exist
In ore grinding, easy mistake is pulverized, and in refining process, circulation is accumulative, causes separation index deterioration, concentrate quality to decline, selects component efficiency
Low.
Summary of the invention
The present invention proposes a kind of fluorite ore and sweeps selected desliming method for separating, solves the cloth serious, embedding of argillization in prior art
The fluorite ore sorting problem complicated, inefficient that granularity is uneven.
The technical scheme is that and be achieved in that: a kind of fluorite ore sweeps selected desliming method for separating, is according to following
Step is carried out: (1) raw ore through one section of corase grind, roughly select after obtain primary mine tailing and primary concentrate;
(2) primary mine tailing obtains mine tailing and scavenger concentrate after scanning;
(3) primary concentrate obtains chats 1, a part through selected 1 rear portion and obtains chats 2 and secondary again after selected 2
Concentrate, secondary concentrate two-stage nitration regrind after through selected 3, a portion obtains chats 3, another part again through follow-up multistage essence
Choosing obtains concentrate and follow-up chats;
(4) chats 1, chats 2 and scavenger concentrate obtain the thin mud mine tailing of a part, another part through overscan essence after concentrating desliming
Obtain sweeping cleaner tailings after choosing and sweep selected concentrate, sweeping selected concentrate and be again introduced into roughly selecting, and sweeping that cleaner tailings is final and mine tailing
Converge;
(5) chats 3 and follow-up chats cut off return.
Fineness after raw ore corase grind is-0.074 content 55%~60%.
Relative to prior art, the present invention so that shale mineral as early as possible enter mine tailing, be prevented effectively from fine fraction mud
The circulation in the selected stage of the matter gangue mineral accumulates, it is easy to manipulates, shorten selected hop count, improve fluorite concentrate grade.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is prior art processes flow chart.
Fig. 2 is the process chart of the present invention.
Fig. 3 is the flow chart that embodiment 1 uses prior art.
Fig. 4 is the process chart that embodiment 1 uses the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not paying creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As in figure 2 it is shown, the fluorite ore of the present invention sweeps selected desliming method for separating, carry out as steps described below: (1) is former
Ore deposit through one section of corase grind, roughly select after obtain primary mine tailing and primary concentrate;
(2) primary mine tailing obtains mine tailing and scavenger concentrate after scanning;
(3) primary concentrate obtains chats 1, a part through selected 1 rear portion and obtains chats 2 and secondary again after selected 2
Concentrate, secondary concentrate two-stage nitration regrind after through selected 3, a portion obtains chats 3, another part again through follow-up multistage essence
Choosing obtains concentrate and follow-up chats;
(4) chats 1, chats 2 and scavenger concentrate obtain the thin mud mine tailing of a part, another part through overscan essence after concentrating desliming
Obtain sweeping cleaner tailings after choosing and sweep selected concentrate, sweeping selected concentrate and be again introduced into roughly selecting, and sweeping that cleaner tailings is final and mine tailing
Converge;
(5) chats 3 and follow-up chats cut off return, again carry out selected.
Preferably, the fineness after raw ore corase grind is-0.074 content 55%~60%.
Present invention is particularly suitable for the complicated difficult that argillization is serious, disseminated grain size is uneven and select fluorite ore, raw ore is through one section
Entering after corase grind and roughly select, rougher concentration carries out regrinding and reconcentration after twice selected, and the chats of regrinding and reconcentration cuts off return, roughly selects
Mine tailing is scanned;Chats 1, chats 2 and scavenger concentrate mixing carry out sweeping selected after concentrating, sweep selected mine tailing as finality
Ore deposit is discharged, and sweeps selected concentrate return and roughly selects.Relative to prior art " chats order return " technique, the present invention scans
Concentrate and chats 1, chats 2 through concentration desliming so that shale mineral as early as possible enter mine tailing, and chats 3 and follow-up chats
Cut off return can be prevented effectively from fine fraction shale gangue mineral the selected stage circulation accumulate, it is easy to manipulate, shorten essence
Selections number, raising fluorite concentrate grade.
Chats order described herein returns and refers to: selected to its upper level of the middling recurrence of this rank every time,
Such as chats 3 returns to selected 2, and chats 4 returns to selected 3, and chats 5 returns to selected 4, the like;And chats cuts off return and is allowed to
Middling recurrence two-stage selected on it, such as chats 3 is back to selected 1, and chats 4 is back to selected 2, and chats 5 returns to selected 3 and depends on
Secondary analogize.
The implementation process of the present invention is described below in conjunction with specific embodiment:
Embodiment 1: the fluorite raw ore of the present embodiment picks up from Inner Mongol fluorite ore, this ore deposit belongs to siliceous lithotype fluorite ore, primary ore
Mud is more, and disseminated grain size is uneven.The automatic mineral analysis meter of raw ore MLA() analyze show, Ore mainly comprise mineral be respectively
Fluorite 31.84%, quartz 35.97%, potassium feldspar 14.84%, plagioclase 3.55%, sericite 5.19%, hornblend, 2.82%, black clouds
Female 0.69%, clay mineral 2.52%, shale mineral content amounts to 11.22%.
Sweeping selected experiment process and see Fig. 4, one section of raw ore corase grind fineness is-0.074mm content 55%, two-stage nitration grinding rate again is-
0.043mm content 90%, sweeps selected result of the test and is shown in Table 1.
Table 1 embodiment 1 sweeps dressing process result of the test
The experiment process using prior art is shown in that Fig. 3, routine test the results are shown in Table 2.
The conventional sorting test result of table 2 embodiment 1
As can be seen from Table 1 and Table 2, relatively conventional flotation flowsheet, after using " sweeping selected " de slime flotation new technology of the present invention,
In the case of Fluorite recovery rate is basically unchanged, concentrate grade improves 3.78 percentage points, and separating effect is substantially improved.
Embodiment 2: the fluorite raw ore of the present embodiment picks up from Henan fluorite ore, this ore deposit belongs to carbonate-type fluorite ore, former
Rawore mud is more, and disseminated grain size is uneven.Rock-mineral determination shows, raw ore valuable mineral is fluorite, disseminated grain size about 0.1~
1.5mm, many and quartz, the tight symbiosis of white mica, part fluorite crackle is grown.Ore mainly comprises mineral and is respectively fluorite
36.24, quartz 30.25%, Anhydrite 12.03%, sericite 9.87%, calcite 4.22%, clay mineral 10.69%.
Sweeping selected test principle process and see Fig. 3, one section of raw ore corase grind fineness is-0.074mm content 58%, and two-stage nitration is the most levigate
Degree is-0.074mm content 90%, sweeps selected result of the test and is shown in Table 3.
Table 3 embodiment 2 sweeps dressing process result of the test
Routine test principle process is shown in that Fig. 4, routine test the results are shown in Table 4.
Common process result of the test in table 4 embodiment 2
From table 3 and table 4 it can be seen that conventional flotation flow process, the CaCO of fluorite concentrate3Content is 1.62%, severe overweight.'s
After using " sweeping selected " de slime flotation new technology, CaCO in fluorite concentrate3Content is 0.79%, meets fluorite concentrate quality and wants
Asking, the ratio of the more conventional flotation of the response rate simultaneously improves 3.19 percentage points.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (2)
1. a fluorite ore sweeps selected desliming method for separating, it is characterised in that carry out as steps described below: (1) raw ore passes through
One section of corase grind, roughly select after obtain primary mine tailing and primary concentrate;
(2) primary mine tailing obtains mine tailing and scavenger concentrate after scanning;
(3) primary concentrate obtains chats 1, a part through selected 1 rear portion and obtains chats 2 and secondary again after selected 2
Concentrate, secondary concentrate two-stage nitration regrind after through selected 3, a portion obtains chats 3, another part again through follow-up multistage essence
Choosing obtains concentrate and follow-up chats;
(4) chats 1, chats 2 and scavenger concentrate obtain the thin mud mine tailing of a part, another part through overscan essence after concentrating desliming
Obtain sweeping cleaner tailings after choosing and sweep selected concentrate, sweeping selected concentrate and be again introduced into roughly selecting, and sweeping that cleaner tailings is final and mine tailing
Converge;
(5) chats 3 and follow-up chats cut off return.
Fluorite ore the most according to claim 1 sweeps selected desliming method for separating, it is characterised in that: the fineness after raw ore corase grind
For-0.074 content 55%~60%.
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Cited By (3)
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---|---|---|---|---|
CN111940145A (en) * | 2020-07-15 | 2020-11-17 | 中国地质科学院矿产综合利用研究所 | Separation method of lead-zinc fluorite ore |
CN113385291A (en) * | 2021-05-27 | 2021-09-14 | 中国地质科学院郑州矿产综合利用研究所 | Method for recovering qualified refractory material raw material from high-iron bauxite clinker waste |
CN114602644A (en) * | 2022-03-14 | 2022-06-10 | 中国地质科学院郑州矿产综合利用研究所 | Regrinding and sorting method for high-grade middling of fluorite ore |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111940145A (en) * | 2020-07-15 | 2020-11-17 | 中国地质科学院矿产综合利用研究所 | Separation method of lead-zinc fluorite ore |
CN113385291A (en) * | 2021-05-27 | 2021-09-14 | 中国地质科学院郑州矿产综合利用研究所 | Method for recovering qualified refractory material raw material from high-iron bauxite clinker waste |
CN113385291B (en) * | 2021-05-27 | 2023-03-14 | 中国地质科学院郑州矿产综合利用研究所 | Method for recovering qualified refractory material raw material from high-iron bauxite clinker waste |
CN114602644A (en) * | 2022-03-14 | 2022-06-10 | 中国地质科学院郑州矿产综合利用研究所 | Regrinding and sorting method for high-grade middling of fluorite ore |
CN114602644B (en) * | 2022-03-14 | 2023-08-18 | 中国地质科学院郑州矿产综合利用研究所 | Regrinding and sorting method for fluorite ore high-grade middlings |
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