CN103657824A - Ore grinding method - Google Patents
Ore grinding method Download PDFInfo
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- CN103657824A CN103657824A CN201310700930.3A CN201310700930A CN103657824A CN 103657824 A CN103657824 A CN 103657824A CN 201310700930 A CN201310700930 A CN 201310700930A CN 103657824 A CN103657824 A CN 103657824A
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- ore
- cyclone
- flotation
- ball mill
- milling method
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Abstract
The invention relates to an ore grinding method which is characterized by comprising the steps as follows: raw ore is crushed and sent to a ball mill for grinding; after ore pulp obtained after ore grinding is separated by a cyclone, sediment sand returns to the ball mill for regrinding; qualified ore pulp is fed to a flotation machine for flotation operation; an overflow of the cyclone is fed to a high frequency vibrating fine screen for separation through an ore separator; and a product on the screen is returned to a slurry pump and recycled into the cyclone for separation. According to the ore grinding method, the production process is simplified, equipment investment and capital investment are saved, the ore separation production cost is reduced, and the economic benefits are increased.
Description
Technical field
The present invention relates to a kind of milling method, belong to ore dressing field.
Background technology
At present, in metallurgical mining industry is produced, for ore-dressing technique, be mainly divided into for two megastages, be grind grading flow process+sort flow process (comprise roughly select, selected etc.).Traditional grinding grading technique is difficult for obtaining thinner Grading Overflow fineness, and in sand return, large proportion valuable mineral derichment, causes valuable mineral overground, and argillization is serious; Classification efficiency is low, and grader exists helical blade and spiral lower end thrust bearing easily to wear and tear, and overhauls very inconvenient; Cyclone is because of the wearing and tearing of spigot or feed is unstable causes the unstable of grading effect, and the fluctuation of special granularity thickness is frequent.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of milling method, and milling method of the present invention has been simplified production procedure, has saved equipment investment and capital expenditure, has reduced mineral processing production cost, has improved economic benefit.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of milling method, comprising:
After crushing raw ore, send into ball mill and carry out ore grinding, ore pulp after ore grinding is after cyclone sorting, desilting returns to ball mill and regrinds, qualified ore pulp feeds flotation device and carries out flotation operation, the overflow of cyclone is sent into high frequency vibrating fine screen sorting again through mine distributor, oversize returns and enters slag stock pump, and recirculation enters cyclone sorting.
On the basis of technique scheme, the present invention can also do following improvement.
Further, after described tcrude ore fragmentation granularity at 100～400mm.
Further, described flotation is reverse flotation or direct flotation.
The invention has the beneficial effects as follows:
Milling method of the present invention has been simplified production procedure, has saved equipment investment and capital expenditure, has reduced mineral processing production cost, has improved economic benefit.
The specific embodiment
Below principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
A milling method, comprising:
High-iron and low-tin crushing raw ore becomes granularity after 100～400mm, send into ball mill and carry out ore grinding, ore pulp after ore grinding is after cyclone sorting, desilting returns to ball mill and regrinds, and qualified ore pulp feeds flotation device and carries out direct flotation operation, and the overflow of cyclone is sent into high frequency vibrating fine screen sorting again through mine distributor, oversize returns and enters slag stock pump, recirculation enters cyclone sorting, end product even particle size distribution, and the product of 0～0.04mm accounts for 60%.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a milling method, is characterized in that, comprising:
After crushing raw ore, send into ball mill and carry out ore grinding, ore pulp after ore grinding is after cyclone sorting, desilting returns to ball mill and regrinds, qualified ore pulp feeds flotation device and carries out flotation operation, the overflow of cyclone is sent into high frequency vibrating fine screen sorting again through mine distributor, oversize returns and enters slag stock pump, and recirculation enters cyclone sorting.
2. milling method according to claim 1, is characterized in that, after described tcrude ore fragmentation, granularity is at 100～400mm.
3. milling method according to claim 1, is characterized in that, described flotation is reverse flotation or direct flotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310700930.3A CN103657824A (en) | 2013-12-16 | 2013-12-16 | Ore grinding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310700930.3A CN103657824A (en) | 2013-12-16 | 2013-12-16 | Ore grinding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103657824A true CN103657824A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310700930.3A Pending CN103657824A (en) | 2013-12-16 | 2013-12-16 | Ore grinding method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103657824A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870908A (en) * | 1954-12-17 | 1959-01-27 | Dorr Oliver Inc | Hydrocyclones in closed-circuit grinding operations |
| CN102600964A (en) * | 2012-03-15 | 2012-07-25 | 江西稀有金属钨业控股集团有限公司 | Method and system for recovering tailing resources |
| CN102921521A (en) * | 2012-11-12 | 2013-02-13 | 湖北鑫鹰环保科技有限公司 | Ore grinding grading method for improving ore grinding processing capacity |
| CN203264860U (en) * | 2013-04-25 | 2013-11-06 | 北矿机电科技有限责任公司 | Multi-channel permanent magnet intensity magnetic separator |
| CN103394405A (en) * | 2013-08-17 | 2013-11-20 | 云南锡业机械制造有限责任公司 | Horizontal novel centrifugal concentrator |
| CN203304062U (en) * | 2013-06-18 | 2013-11-27 | 江西稀有稀土金属钨业集团有限公司 | Device for automatic beneficiation by gravity |
-
2013
- 2013-12-16 CN CN201310700930.3A patent/CN103657824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870908A (en) * | 1954-12-17 | 1959-01-27 | Dorr Oliver Inc | Hydrocyclones in closed-circuit grinding operations |
| CN102600964A (en) * | 2012-03-15 | 2012-07-25 | 江西稀有金属钨业控股集团有限公司 | Method and system for recovering tailing resources |
| CN102921521A (en) * | 2012-11-12 | 2013-02-13 | 湖北鑫鹰环保科技有限公司 | Ore grinding grading method for improving ore grinding processing capacity |
| CN203264860U (en) * | 2013-04-25 | 2013-11-06 | 北矿机电科技有限责任公司 | Multi-channel permanent magnet intensity magnetic separator |
| CN203304062U (en) * | 2013-06-18 | 2013-11-27 | 江西稀有稀土金属钨业集团有限公司 | Device for automatic beneficiation by gravity |
| CN103394405A (en) * | 2013-08-17 | 2013-11-20 | 云南锡业机械制造有限责任公司 | Horizontal novel centrifugal concentrator |
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Application publication date: 20140326 |