CN105032582B - Efficient mineral separation process using high-pressure roller mill and magnetic field screening machine - Google Patents
Efficient mineral separation process using high-pressure roller mill and magnetic field screening machine Download PDFInfo
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- CN105032582B CN105032582B CN201510490752.5A CN201510490752A CN105032582B CN 105032582 B CN105032582 B CN 105032582B CN 201510490752 A CN201510490752 A CN 201510490752A CN 105032582 B CN105032582 B CN 105032582B
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- pressure roller
- ore
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- roller mill
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Abstract
The invention discloses an efficient mineral separation process by utilizing a high-pressure roller mill and a magnetic field screening machine, which has scientific and simple process flow and low operation cost; the high-pressure roller mill has high crushing ratio and fine product granularity, effectively improves the iron mineral monomer dissociation degree of crushing operation, and greatly improves the processing capacity of the mill; and a magnetic field screening machine is adopted for selecting part of the qualified iron ore concentrate subjected to monomer dissociation aiming at the fine-grained products of the high-pressure roller, so that the excessive grinding quantity is effectively reduced, the ore quantity of the grinding and selecting operation is effectively reduced, the energy is saved, the consumption is reduced, and the economic benefit is remarkable.
Description
Technical field
It is specifically a kind of to coordinate the efficient of Magnetic field screening separator using high-pressure roller mill the present invention relates to magnetite beneficiation process
Ore-dressing technique.
Background technology
The asymptotic exhaustion of iron ore deposit, the washability of ore is selected to become worse and worse, to make recently as mine Yi Caiyi
It must ensure that the difficulty of original concentrate quality becomes increasing, cause and put dusting cover pore size simply on the basis of original to control
Granulation degree, makes the grinding system again that can't bear the heavy load originally be chronically at overload state, and last direct result is that production capacity is big
It is big to reduce.Iron Concentrate Quality and yield select the contradiction day of factory's benefit and cost aobvious protrusion, technique originally that cannot increasingly fit
The requirement of ore properties and concentrate quality that should be preceding.The problem of Fine screening-regrinding technology is primarily present is the control in mog
Upper implementation clean cut in this way can cause the coarse grain magnetic iron ore monomer in most of magnetic iron ores in thickness misproportion dissemination
Mill, and can be sieved into concentrate with iron mineral existing for microfine intergrowth, to influence concentrate quality.
High-pressure roller mill design and fabrication technology was introduced into the country before more than 20 years, was successfully applied to the grinding of cement industry
Flow, it has also become the reduction ratio of the preferred unit of its grinding system, high-pressure roller mill is far above conventional crushing plant, and in product
Fine particle inside also create micro-crack, can improve material grindability, reduce Bond work index and improve it is useful at
The rate of recovery divided.High-pressure roller mill is adapted to the gradual understanding for obtaining domestic non-cement industry of excellent performance and attention, technique
Property it is strong, increase substantially the fine ore rate and grindability of mill feed material, can also meet coarse grain efficiently throw tail, improve follow-up process ore
Grade, hence it is evident that reduce ore grinding amount, realize the basic goal of cost efficiency.
The Magnetic field screening separator developed by Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS adapts to feed preparation unit size
Range is wide, as long as dissociated magnetic iron ore monomer, it can be recycled from concentrate, only need to be to the intergrowth of influence concentrate quality
Regrinding and reconcentration, concentrate could be become by being only sieved rather than traditional dusting cover technique, therefore Magnetic field screening separator has raising concentrate product
While matter, reduction is overground, puts thick mog, improves the double effects of production capacity.
Invention content
For in the prior art the shortcomings that, the present invention provide it is a kind of utilize high-pressure roller mill cooperation Magnetic field screening separator it is efficient
Ore-dressing technique.
To achieve the goals above, the technical solution adopted by the present invention is；
A kind of efficient ore-dressing technique coordinating Magnetic field screening separator using high-pressure roller mill, it is characterised in that：Including following step
Suddenly：
(1), raw ore by conventional crude, in it is broken after sieved, the ore of granularity≤30mm enters high-pressure roller mill, granularity
The ore of ＞ 30mm is broken in returning.
(2), the product of high-pressure roller mill carries out one section of wet screening, and the ore of granularity≤3mm carries out two sections of wet screenings,
The ore of granularity ＞ 3mm returns to high-pressure roller mill.
(3), after two sections of wet screenings, the ore of granularity≤0.5mm carries out one section of wet magnetic separation, granularity ＞ 0.5mm
Ore carry out two sections of wet magnetic separations.
(4), after one section of wet magnetic separation throws tail, magnetic concentrate enters Magnetic field screening separator；The concentrate of Magnetic field screening separator is
Qualified products, chats carry out two sections of wet magnetic separations.
(5), after two sections of wet magnetic separations throw tail, magnetic concentrate Qu Moxuan workshop sections.
A kind of efficient ore-dressing technique coordinating Magnetic field screening separator using high-pressure roller mill, it is characterised in that：Step
(3) interval slag screening plant is high frequency fine screen.
A kind of efficient ore-dressing technique coordinating Magnetic field screening separator using high-pressure roller mill, it is characterised in that：Step
(4) Magnetic field screening separator model CSX in.
Compared with prior art, high-pressure roller mill 1) is used so that valuable mineral dissociates more abundant with gangue；High pressure roller mill
For crusher machine than high, product granularity is thin, effectively improves grinding machine processing capacity；
2) before fine enters grinding machine, the qualified concentrate containing of monomer dissociation is selected through Magnetic field screening separator, reduction is overground, carries
High grinding machine processing capacity, remarkable in economical benefits.
Description of the drawings
Fig. 1 is the process flow chart of the present invention.
Specific implementation mode
As shown in Figure 1, a kind of efficient ore-dressing technique coordinating Magnetic field screening separator using high-pressure roller mill, including following step
Suddenly：
(1), raw ore by conventional crude, in it is broken after sieved, the ore of granularity≤30mm enters high-pressure roller mill, granularity
The ore of ＞ 30mm is broken in returning.
(2), the product of high-pressure roller mill carries out one section of wet screening, and the ore of granularity≤3mm carries out two sections of wet screenings,
The ore of granularity ＞ 3mm returns to high-pressure roller mill.
(3), after two sections of wet screenings, the ore of granularity≤0.5mm carries out one section of wet magnetic separation, granularity ＞ 0.5mm
Ore carry out two sections of wet magnetic separations.
(4), after one section of wet magnetic separation throws tail, magnetic concentrate enters Magnetic field screening separator；The concentrate of Magnetic field screening separator is
Qualified products, chats carry out two sections of wet magnetic separations.
(5), after two sections of wet magnetic separations throw tail, magnetic concentrate Qu Moxuan workshop sections.
Step (3) interval slag screening plant is high frequency fine screen.
Magnetic field screening separator model CSX in step (4).
Claims (3)
1. a kind of efficient ore-dressing technique coordinating Magnetic field screening separator using high-pressure roller mill, it is characterised in that：Include the following steps：
(1), raw ore by conventional crude, in it is broken after sieved, the ore of granularity≤30mm enters high-pressure roller mill, granularity ＞
The ore of 30mm is broken in returning；
(2), the product of high-pressure roller mill carries out one section of wet screening, and the ore of granularity≤3mm carries out two sections of wet screenings, granularity
The ore of ＞ 3mm returns to high-pressure roller mill；
(3), after two sections of wet screenings, the ore of granularity≤0.5mm carries out one section of wet magnetic separation, the mine of granularity ＞ 0.5mm
Stone carries out two sections of wet magnetic separations；
(4), after one section of wet magnetic separation throws tail, magnetic concentrate enters Magnetic field screening separator；The concentrate of Magnetic field screening separator is qualification
Product, chats carry out two sections of wet magnetic separations；
(5), after two sections of wet magnetic separations throw tail, magnetic concentrate Qu Moxuan workshop sections.
2. a kind of efficient ore-dressing technique coordinating Magnetic field screening separator using high-pressure roller mill according to claim 1, special
Sign is：Step (3) interval slag screening plant is high frequency fine screen.
3. a kind of efficient ore-dressing technique coordinating Magnetic field screening separator using high-pressure roller mill according to claim 1, special
Sign is：Magnetic field screening separator model CSX in step (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490752.5A CN105032582B (en) | 2015-08-12 | 2015-08-12 | Efficient mineral separation process using high-pressure roller mill and magnetic field screening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490752.5A CN105032582B (en) | 2015-08-12 | 2015-08-12 | Efficient mineral separation process using high-pressure roller mill and magnetic field screening machine |
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| Publication Number | Publication Date |
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| CN105032582A CN105032582A (en) | 2015-11-11 |
| CN105032582B true CN105032582B (en) | 2018-10-16 |
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| CN201510490752.5A Expired - Fee Related CN105032582B (en) | 2015-08-12 | 2015-08-12 | Efficient mineral separation process using high-pressure roller mill and magnetic field screening machine |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824508A (en) * | 2017-01-10 | 2017-06-13 | 中冶北方（大连）工程技术有限公司 | A kind of broken mill ore magnetic selection technique of magnetic iron ore |
| CN107899723A (en) * | 2017-12-04 | 2018-04-13 | 成都利君实业股份有限公司 | A kind of slag solid waste high pressure roller grinding magnetic separation process method |
| CN108993758A (en) * | 2018-07-05 | 2018-12-14 | 鞍钢集团矿业有限公司 | A kind of fine-grained disseminated grain carbonate chromium depleted zone stone ore-dressing technique |
| CN109746104A (en) * | 2019-02-11 | 2019-05-14 | 鞍钢集团矿业有限公司 | A kind of magnetic iron ore is broken-pre-selection-grinding process |
| CN110102403A (en) * | 2019-05-30 | 2019-08-09 | 中冶北方（大连）工程技术有限公司 | The pre- magnetic separation of coarse grain wet type and closed circuit grinding classification system and technique in HPGR process |
| CN110743684B (en) * | 2019-10-15 | 2021-04-06 | 中国地质科学院郑州矿产综合利用研究所 | Method for preparing ceramic raw material from granite stone waste stone |
| CN112170000A (en) * | 2020-09-18 | 2021-01-05 | 滦平建龙矿业有限公司 | Pre-screening treatment system and process for magnetite high-pressure roller mill before grinding |
| CN112718194B (en) * | 2020-12-16 | 2022-09-27 | 安徽新建矿业工程技术有限责任公司 | Magnetite series high-pressure roller grinding and combined tail polishing energy-saving crushing method |
| CN115193563A (en) * | 2022-07-13 | 2022-10-18 | 会理县财通铁钛有限责任公司 | Superfine crushing and mineral separation process and system |
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| WO2001003844A1 (en) * | 1999-07-12 | 2001-01-18 | Steinert Elektromagnetbau Gmbh | Separating facility and method for separating a fraction containing nonferrous metals from an electronic scrap preparation |
| CN102172556A (en) * | 2010-12-07 | 2011-09-07 | 东北大学 | High-pressure roller milling-preselection processing method for vanadic titanomagnetite |
| CN102228865A (en) * | 2010-07-30 | 2011-11-02 | 鞍钢集团矿业公司 | Novel wet-type strong-magnetic pre-separation process of weak-magnetic low-grade iron mineral roller mill |
| CN102773142A (en) * | 2012-05-31 | 2012-11-14 | 安徽大昌矿业集团有限公司 | Anshan type lean magnetite underground ore dressing and filling method |
| CN204294361U (en) * | 2014-08-21 | 2015-04-29 | 云南大红山管道有限公司 | A kind of Magnetic field screening separator that can improve beneficiating efficiency |
| CN104722394A (en) * | 2015-03-30 | 2015-06-24 | 安徽马钢工程技术集团有限公司 | Novel composite lean iron ore pre-concentration technology and production system thereof |
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2015
- 2015-08-12 CN CN201510490752.5A patent/CN105032582B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001003844A1 (en) * | 1999-07-12 | 2001-01-18 | Steinert Elektromagnetbau Gmbh | Separating facility and method for separating a fraction containing nonferrous metals from an electronic scrap preparation |
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| CN105032582A (en) | 2015-11-11 |
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