CN107597431A - A kind of beneficiation method of weak-magnetic iron ore - Google Patents
A kind of beneficiation method of weak-magnetic iron ore Download PDFInfo
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- CN107597431A CN107597431A CN201710913580.7A CN201710913580A CN107597431A CN 107597431 A CN107597431 A CN 107597431A CN 201710913580 A CN201710913580 A CN 201710913580A CN 107597431 A CN107597431 A CN 107597431A
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Abstract
The invention discloses a kind of beneficiation method of weak-magnetic iron ore, including the step of primary crushing, first screening, ball milling, classification, desliming process, selected and storage.The present invention realizes achieves that the selected hang-up of the enrichment to weak-magnetic iron ore also insurmountable now using some common equipments, iron-holder after its is selected is up to 50~55%, its flow is drawn on practical basis for many years, weak-magnetism ore gravity treatment is used innovation, has drawn higher ratio of concentration and fine powder grade.The technology of the present invention strong operability, the very high technical staff of technical merit is not required to, there are huge economic results in society.
Description
Technical field
The present invention relates to a kind of beneficiation method, specifically a kind of beneficiation method of weak-magnetic iron ore, belong to ore screening
Technical field.
Background technology
With the development of steel industry, all trades and professions are increasing to the demand of steel, for production efficiency and cost
Consideration, the enterprise of domestic exploitation iron ore, have focused largely on the exploitation to high-grad iron ore deposit, and ignore the exploitation to poor iron ore.
Existing iron ore dressing technique is also the rich iron ore of more than 55% relatively high magnetism both for iron-holder, is not suitable for
Weak-magnetic iron ore, the ore dressing to iron-holder for ＜ 35% weak-magnetic iron ore, never a kind of good method, causes a large amount of
Weak-magnetic iron ore can not be utilized, or even some area inexpensively by its with industrial building stones abuse fall, make it cause to provide
The significant wastage in source.Therefore, a kind of utilization rate of beneficiation method for weak-magnetic iron ore to raising natural resources is worked out
And national economy has great importance.
The content of the invention
For problems of the prior art, it is an object of the invention to provide one kind to obtain iron concentrate grade height, mine tailing
Lose the beneficiation method of weak-magnetic iron ore small, that production efficiency is high.
To achieve these goals, the technical scheme is that：A kind of beneficiation method of weak-magnetic iron ore, its feature
It is：Comprise the following steps：
1) primary crushing：Iron ore to be selected is put into disintegrating machine and carries out primary crushing, is obtained<10mm particle and powder
End；
2) first screening：Particle in step 1) and powder are put into the screening machine with high-intensity magnetic field and screened, is obtained
To having magnetic iron ore particle and powder, do not given up by the particle and powder of screening；
3) ball milling：The qualified particle of screening in step 2) and powder are put into ball mill and carry out wet ball-milling, is obtained
Ore pulp；
4) it is classified：By in step 3) to pulp conveying sieved to spiral screening machine,>100um particle is again
Carry out ball milling；
5) desliming process：By what is obtained in step 4)<100um iron ore enters back into sloughing-off tank after entering clear mud box, enters
Row desliming process, repeatedly into clear mud box and sloughing-off tank several times, obtain the iron ore after desliming；
6) it is selected：Iron ore after desliming in step 5) is sent into Wet-type strong magnetic separator and carries out selected, Wet-type strong magnetic separator
Point three tunnels export respectively high-grade magnetic fine ore, low-grade magnetic mine tailing miberal powder and be mingled with low-grade magnetic mine tailing miberal powder and
The chats miberal powder of middle grade magnetic mineral fine；
7) be put in storage：The beneficiated iron ore powder that ore in step 6) is obtained after vacuum filtration is put in storage, chats particle and tail
Ore deposit is transported to tailingspile.
Further, the magnetic field of the screening machine used in step 2) is the high-gradient magnetic field of 20000 Gausses (GS)；
Further, the weak-magnetic iron ore is bloodstone, limonite, siderite, speculum iron, martite or pin
Iron ore.
The present invention realize achieved that using some common equipments it is also insurmountable now to weak-magnetic iron ore
Selected hang-up is enriched with, for the iron-holder after its is selected up to 50~55%, its flow is drawn on practical basis for many years
, weak-magnetism ore gravity treatment is used innovation, has drawn higher ratio of concentration and fine powder grade.The technology of the present invention strong operability,
The very high technical staff of technical merit is not required to, there are huge economic results in society.
Embodiment
The present invention is further described below.
A kind of beneficiation method of weak-magnetic iron ore, comprises the following steps：
1) primary crushing：Iron ore to be selected is put into disintegrating machine and carries out primary crushing, is obtained<10mm particle and powder
End；
2) first screening：Particle in step 1) and powder are put into the screening machine with high-intensity magnetic field and screened, is obtained
To having magnetic iron ore particle and powder, do not given up by the particle and powder of screening；
3) ball milling：The qualified particle of screening in step 2) and powder are put into ball mill and carry out wet ball-milling, is obtained
Ore pulp；
4) it is classified：By in step 3) to pulp conveying sieved to spiral screening machine,>100um particle is again
Carry out ball milling；
5) desliming process：By what is obtained in step 4)<100um iron ore enters back into sloughing-off tank after entering clear mud box, enters
Row desliming process, repeatedly into clear mud box and sloughing-off tank several times, obtain the iron ore after desliming；
6) it is selected：Iron ore after desliming in step 5) is sent into Wet-type strong magnetic separator and carries out selected, Wet-type strong magnetic separator
Point three tunnels export respectively high-grade magnetic fine ore, low-grade magnetic mine tailing miberal powder and be mingled with low-grade magnetic mine tailing miberal powder and
The chats miberal powder of middle grade magnetic mineral fine；
7) be put in storage：The beneficiated iron ore powder that ore in step 6) is obtained after vacuum filtration is put in storage, chats particle and tail
Ore deposit is transported to tailingspile.
The magnetic field of screening machine used in step 2) is the high-gradient magnetic field of 20000 Gausses (GS).
The weak-magnetic iron ore is bloodstone, limonite, siderite, speculum iron, martite or goethite.
Claims (3)
- A kind of 1. beneficiation method of weak-magnetic iron ore, it is characterised in that：Comprise the following steps：1) primary crushing：Iron ore to be selected is put into disintegrating machine and carries out primary crushing, is obtained<10mm particle and powder；2) first screening：Particle in step 1) and powder are put into the screening machine with high-intensity magnetic field and screened, is had Magnetic iron ore particle and powder, do not given up by the particle and powder of screening；3) ball milling：The qualified particle of screening in step 2) and powder are put into ball mill and carry out wet ball-milling, obtains ore pulp；4) it is classified：By in step 3) to pulp conveying sieved to spiral screening machine,>100um particle re-starts Ball milling；5) desliming process：By what is obtained in step 4)<100um iron ore enters back into sloughing-off tank after entering clear mud box, is taken off Mud processing, repeatedly into clear mud box and sloughing-off tank several times, obtains the iron ore after desliming；6) it is selected：Iron ore after desliming in step 5) is sent into Wet-type strong magnetic separator and carries out selected, Wet-type strong magnetic separator point three Road export respectively high-grade magnetic fine ore, low-grade magnetic mine tailing miberal powder and be mingled with low-grade magnetic mine tailing miberal powder and middle product The chats miberal powder of position magnetic mineral fine；7) be put in storage：The beneficiated iron ore powder that ore in step 6) is obtained after vacuum filtration is put in storage, and chats particle and mine tailing are defeated It is sent to tailingspile.
- 2. a kind of beneficiation method of weak-magnetic iron ore according to claim 1, it is characterized in that：Used in step 2) The magnetic field of screening machine is the high-gradient magnetic field of 20000 Gausses (GS).
- 3. a kind of beneficiation method of weak-magnetic iron ore according to claim 1 or 2, it is characterized in that：The weak magnetism Ore is bloodstone, limonite, siderite, speculum iron, martite or goethite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710913580.7A CN107597431A (en) | 2017-09-30 | 2017-09-30 | A kind of beneficiation method of weak-magnetic iron ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710913580.7A CN107597431A (en) | 2017-09-30 | 2017-09-30 | A kind of beneficiation method of weak-magnetic iron ore |
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| CN107597431A true CN107597431A (en) | 2018-01-19 |
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| CN201710913580.7A Pending CN107597431A (en) | 2017-09-30 | 2017-09-30 | A kind of beneficiation method of weak-magnetic iron ore |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906313A (en) * | 2018-07-12 | 2018-11-30 | 李建辉 | A kind of beneficiation combined method method and system of synthetical recovery association iron Phosphate minerals |
| CN109317289A (en) * | 2018-11-14 | 2019-02-12 | 王光领 | Dry sand medium preparation process is used on air dry sand Recognition Applied in Coal Preparation System |
| CN110898956A (en) * | 2019-11-06 | 2020-03-24 | 乐山市南联环资科技有限责任公司 | Process for producing feldspar for glaze by utilizing feldspar tailings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062502A (en) * | 2006-04-28 | 2007-10-31 | 张颖智 | Mineral concentration new technique for weak-magnetic iron ore |
| CN101352697A (en) * | 2007-07-25 | 2009-01-28 | 张颖智 | Novel ore dressing technique of weak magnetic iron ore and novel special strong magnetic dry separator thereof |
| CN103341399A (en) * | 2013-07-02 | 2013-10-09 | 薛海亮 | Weak-magnetism iron ore beneficiation method |
-
2017
- 2017-09-30 CN CN201710913580.7A patent/CN107597431A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062502A (en) * | 2006-04-28 | 2007-10-31 | 张颖智 | Mineral concentration new technique for weak-magnetic iron ore |
| CN101352697A (en) * | 2007-07-25 | 2009-01-28 | 张颖智 | Novel ore dressing technique of weak magnetic iron ore and novel special strong magnetic dry separator thereof |
| CN103341399A (en) * | 2013-07-02 | 2013-10-09 | 薛海亮 | Weak-magnetism iron ore beneficiation method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906313A (en) * | 2018-07-12 | 2018-11-30 | 李建辉 | A kind of beneficiation combined method method and system of synthetical recovery association iron Phosphate minerals |
| CN109317289A (en) * | 2018-11-14 | 2019-02-12 | 王光领 | Dry sand medium preparation process is used on air dry sand Recognition Applied in Coal Preparation System |
| WO2020098703A1 (en) * | 2018-11-14 | 2020-05-22 | 王光领 | Process of preparing dry sand medium for air and dry sand coal separation system |
| CN110898956A (en) * | 2019-11-06 | 2020-03-24 | 乐山市南联环资科技有限责任公司 | Process for producing feldspar for glaze by utilizing feldspar tailings |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |
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| RJ01 | Rejection of invention patent application after publication |