CN101003093A - Technique for extracting iron refined powder base on industrial mine tailings of containing iron - Google Patents
Technique for extracting iron refined powder base on industrial mine tailings of containing iron Download PDFInfo
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- CN101003093A CN101003093A CN 200710053870 CN200710053870A CN101003093A CN 101003093 A CN101003093 A CN 101003093A CN 200710053870 CN200710053870 CN 200710053870 CN 200710053870 A CN200710053870 A CN 200710053870A CN 101003093 A CN101003093 A CN 101003093A
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Abstract
A process for extracting the Fe concentrate powder from the industrial Fe-contained ore tailings includes such steps as immersing said industrial tailings in water, washing, grinding, screening by HF sieve, magnetic dressing, and purifying.
Description
Technical field
The present invention relates to a kind of based on the technology of from industrial ferrous contained mine tailing, extracting the smart powder of iron.
Background technology
China is an iron and steel big producing country, and iron and steel output in 2006 is broken through 400,000,000 tonnages and ranked first in the world, and needs a large amount of raw material and produce iron and steel, though these raw material China reserves are abundant, mostly is lean ore, not good utilisation; Therefore 60% raw material need be from resource big country imports such as Australia, India, Brazil, and year is expensive more than 20,000,000,000 dollars, restricts the development of China's steel and iron industry to a certain extent.
In steel-making, need the smart powder of the iron of iron-holder more than 62% in the ironmaking processes, general in the world ore dressing mode magnetic separation, two kinds of flotation, magnetic separation is to low taste ore deposit and industrial ferrous contained mine tailing, as the molybdenum mine tailing, sulfuric acid grain slag etc. just can't be suitable for, and these industrial solid mine tailing whole nations have 3000～4,000 ten thousand tons at least every year, only Henan Province has 6,000,000 tons of these type of waste materials every year approximately, as the molybdenum mine tailing, sulfate slag etc., all be not broken because of critical process, and the enrichment and sort utilization of being difficult to be purified, these resource long-terms are discarded and can not effectively be utilized, and have brought suitable adverse influence for the living environment of China's humanity.
Usually the magnetite concentrate of China is to adopt common magnetic method processing resulting, because method is simple, also have 8%～20% iron not to be utilized in the mine tailing, other symbiosis associated minerals then utilize is gravity separation method, floatation, high intensity magnetic separation method, magnetizing roast method, magnetization method or with combined process flow method etc., above-mentioned ore-dressing technique is all very complicated, can pollute industrial environment.
Goal of the invention
Purpose of the present invention is providing a kind of free from environmental pollution, and the process that the iron in the industrial ferrous contained mine tailing can be extracted is promptly based on the technology of extracting the smart powder of iron from industrial ferrous contained mine tailing.
Summary of the invention
The present invention is achieved in that
The first step: industrial ferrous contained mine tailing is soaked in water, cleans dirts such as No. 2, kerosene, sodium chloride, alundum (Al are rinsed out.
Second step: resultant clean mine tailing stone is sent into grinder be broken into 30～300 orders.
The 3rd step: it is 220V that resulting breeze is transported to voltage, the high frequency of frequency 50HZ screens, granularity can not will be sent into grinder by the breeze of high frequency sieve and pulverize, until passing through fully smoothly by the sieve aperture of high frequency sieve smoothly again at 120～200 purpose breezes.
The 4th step: garbled breeze is sent to the wet type permanent magnet roll-type revolves to select and carry out magnetic separation in the machine, magnetic field intensity is 1200～6000 oersteds; The iron content taste of the breeze after roughly selecting can reach more than 50%, and the lower breeze of iron content taste is separated, and promptly mine tailing is done its usefulness in addition.
The 5th step: breeze qualified after the primary election is sent into magnetic field intensity once more in the purifying machine of 6000～25000 oersteds, carry out last purification, can obtain the smart powder of highly purified iron.
Advantage and good effect:
1, made full use of resource.By of the processing of this technology to industrial ferrous contained mine tailing, can purify 8%～20% iron resource in most of magnetic iron ore mine tailing out, also 30%～45% iron resource in the molybdenum mine tailing can be purified out, can also purify 25%～40% iron resource in the sulfate slag out, have good economic benefits and social benefit.
2, enlarge the resource channel of steel-making, ironmaking, had good economic benefits.
3, this implementation of processes has guaranteed the ordinary production of iron and steel enterprise still to have very high social benefit.
4, whole process flow is produced the water circulation and can be used the realization zero emission.
Description of drawings:
Fig. 1: process chart of the present invention.
The specific embodiment:
Below in conjunction with accompanying drawing, the invention will be further elaborated.
To extract the smart powder of iron from the molybdenum mine tailing is example,
Concrete processing step is as follows:
The first step: the molybdenum mine tailing is soaked in water, cleans dirts such as No. 2, kerosene, sodium chloride, alundum (Al are rinsed out.
Second step: resultant clean molybdenum mine tailing stone is sent into grinder be broken into 30～300 orders.
The 3rd step: it is 220V that resulting molybdenum mine tailing is transported to voltage, and in the high frequency sieve of frequency 50HZ, sieve aperture is that 150 purpose high frequencies screen, and can not send into grinder again by the molybdenum mine tailing of high frequency sieve smoothly and pulverize, until passing through fully.
The 4th step: garbled molybdenum ore powder is sent to the wet type permanent magnet roll-type revolves to select and carry out magnetic separation in the machine, magnetic field intensity is 4000 oersteds; The iron content taste is retained at the molybdenum mine tailing more than 50%, and the lower molybdenum mine tailing of iron content taste is separated and does its usefulness in addition.
The 5th step: molybdenum ore powder qualified after the primary election is sent into magnetic field intensity once more in the purifying machine of 13000 oersteds, carry out last purification, can obtain the smart powder of highly purified iron.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from, to any simple modification or equivalent variations and modification that above embodiment did, all still belong to the scope of technical solution of the present invention according to technical spirit of the present invention.
Claims (5)
1, based on the technology of from industrial ferrous contained mine tailing, extracting the smart powder of iron, it is characterized in that: carry out according to following processing step:
The first step: industrial ferrous contained mine tailing is soaked in water, cleans dirts such as No. 2, kerosene, sodium chloride, alundum (Al are rinsed out.
Second step: resultant clean mine tailing stone is sent into grinder be broken into 30～300 orders.
The 3rd step: it is 220V that resulting breeze is transported to voltage, and in the high frequency sieve of frequency 50HZ, sieve aperture is that 120～200 purpose high frequencies screen, and can not send into grinder again by the mine tailing of high frequency sieve smoothly and pulverize, until passing through fully.
The 4th step: garbled breeze is sent to the wet type permanent magnet roll-type revolves to select and carry out magnetic separation in the machine, magnetic field intensity is 1200～6000 oersteds; The iron content taste is retained at the mine tailing more than 50%, and the lower mine tailing of iron content taste is separated and does its usefulness in addition.
The 5th step: breeze qualified after the primary election is sent into magnetic field intensity once more in the purifying machine of 6000～25000 oersteds, carry out last purification, can obtain the smart powder of highly purified iron.
2, according to claim 1 based on the technology of extracting the smart powder of iron from industrial ferrous contained mine tailing, it is characterized in that: in second step, mine tailing stone is broken into 150 orders and is advisable in grinder at processing step.
3, according to claim 1 based on the technology of extracting the smart powder of iron from industrial ferrous contained mine tailing, it is characterized in that: in the 3rd step, the frequency of high frequency sieve is 50 hertz at processing step, and voltage is 220V, and sieve aperture 150 orders are advisable.
4, according to claim 1 based on the technology of extracting the smart powder of iron from industrial ferrous contained mine tailing, it is characterized in that: in the 4th step, it is that 4000 oersteds are advisable that the wet type permanent magnet roll-type is revolved the magnetic field intensity of selecting in the machine at processing step.
5, according to claim 1 based on the technology of extracting the smart powder of iron from industrial ferrous contained mine tailing, its spy is: in the 5th step, the magnetic field intensity of purifying machine is 13000 oersteds at processing step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710053870 CN101003093A (en) | 2007-01-22 | 2007-01-22 | Technique for extracting iron refined powder base on industrial mine tailings of containing iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710053870 CN101003093A (en) | 2007-01-22 | 2007-01-22 | Technique for extracting iron refined powder base on industrial mine tailings of containing iron |
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| CN101003093A true CN101003093A (en) | 2007-07-25 |
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| CN 200710053870 Pending CN101003093A (en) | 2007-01-22 | 2007-01-22 | Technique for extracting iron refined powder base on industrial mine tailings of containing iron |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850356A (en) * | 2010-05-26 | 2010-10-06 | 周国发 | Method for extracting fine iron powder from nonferrous mineral dressing wastes |
| WO2012009925A1 (en) * | 2010-07-19 | 2012-01-26 | 北京科技大学 | Pollution-free reuse method for iron-based grinding scrap |
| CN103433124A (en) * | 2013-09-18 | 2013-12-11 | 江西理工大学 | Process for comprehensively recovering ferrum, molybdenum and sericite from gold concentrator tailings |
| CN105797847A (en) * | 2016-03-16 | 2016-07-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for removing strongly magnetic tailings from iron ore combined tailings through dry separation |
-
2007
- 2007-01-22 CN CN 200710053870 patent/CN101003093A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850356A (en) * | 2010-05-26 | 2010-10-06 | 周国发 | Method for extracting fine iron powder from nonferrous mineral dressing wastes |
| WO2012009925A1 (en) * | 2010-07-19 | 2012-01-26 | 北京科技大学 | Pollution-free reuse method for iron-based grinding scrap |
| CN103433124A (en) * | 2013-09-18 | 2013-12-11 | 江西理工大学 | Process for comprehensively recovering ferrum, molybdenum and sericite from gold concentrator tailings |
| CN103433124B (en) * | 2013-09-18 | 2015-04-29 | 江西理工大学 | Process for comprehensively recovering ferrum, molybdenum and sericite from gold concentrator tailings |
| CN105797847A (en) * | 2016-03-16 | 2016-07-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for removing strongly magnetic tailings from iron ore combined tailings through dry separation |
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