CN102974460A - Method for recycling tin tailings - Google Patents
Method for recycling tin tailings Download PDFInfo
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- CN102974460A CN102974460A CN2012105151757A CN201210515175A CN102974460A CN 102974460 A CN102974460 A CN 102974460A CN 2012105151757 A CN2012105151757 A CN 2012105151757A CN 201210515175 A CN201210515175 A CN 201210515175A CN 102974460 A CN102974460 A CN 102974460A
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Abstract
The invention discloses a method for recycling tin tailings, relating to the technical field of physical concentration. The invention aims to enhance the recovery rate and the grade of the finally concentrated mineral aggregate. The method comprises steps as follows: four continuously rotating rough concentration magnetic cylinders respectively adsorb iron-containing mineral particles in tailing slurry to obtain rough concentration mineral aggregate; the rough concentration mineral aggregate is subjected to grading screening, cleavaging is performed on rough-size mineral particles in the rough concentration mineral aggregate until cleavaged mineral particles can pass through a 150-mesh screen, thereby obtaining a crude concentrate; four continuously rotating concentration magnetic cylinders respectively adsorb iron-containing mineral particles in the crude concentrate, the mineral particles adsorbed to the four concentration magnetic cylinders are taken down to obtain an iron concentrate; and a concentrating table is utilized to screen the crude concentrate treated by the four concentration magnetic cylinders, thereby obtaining the tin concentrate. The method provided by the invention has the advantage of high recovery rate of mineral aggregate, and can screen out high-grade mineral aggregate.
Description
Technical field
The present invention relates to the physical upgrading technology, particularly relate to a kind of technology of recoverying and utilizing method of tailing.
Background technology
Tailing mainly contains two kinds of artificial gold mine tailing and tin oxide mine tailings.The unit of recoverable have tin, iron, sulphur in the artificial gold mine tailing, and iron and the sulphur overwhelming majority are ferrous sulfides in the artificial gold mine tailing, can extract the pyrite concentrate of iron content, sulphur from the artificial gold mine tailing, and stanniferous tin washed ore.The unit of recoverable have tin, iron in the tin oxide mine tailing, and iron wherein has seldom that a part is tri-iron tetroxide, and major part is di-iron trioxide, can extract the iron fine powder of iron content from the tin oxide mine tailing, and stanniferous tin washed ore.
Present technique of preparing to the artificial gold mine tailing all focuses on and selects tin and sulphur, existing method all is to adopt cleaning table to select tin, although select totallyer to the tin in the artificial gold mine tailing, but still have the race tail, and existing method is less to the amount of selecting of sulphur, stanniferous amount still has about 0.3% in the tailing of final discharging, and sulfur content then has about 6%, and iron-holder has about 17%.
At present the technique of preparing of tin oxide mine tailing generally only selected tin, all in tailing, existing method all is to adopt the cleaning table to select tin to most of iron, to stanniferous about 0.3% in the tailing after the ore dressing of tin oxide mine tailing, and iron content about 20%.Also have at present to use and do the magnetic separation mode and choose tin in the tin oxide mine tailing and the technology of iron, its main purpose is to select tin, iron is accessory substance, require mineral aggregate is dried owing to do the magnetic separation mode, so its production efficiency is extremely low, the tin recovering effect is not high yet, the iron recovering effect is then poorer, and the iron fine powder grade of finally selecting only has about 45-50, have yield poorly, cost is high, the defective of arsenic content high (about 1%), the iron fine powder steel plant of this quality do not receive, and can only be used for joining the ore deposit.
In sum, the defective of existing tailing recovery and utilization technology is the rate of recovery of mineral aggregate lower, the grade of the final mineral aggregate of selecting is also relatively poor, especially the iron fine powder of electing, substantially can not normal sale, thereby can't form large-scale production, can't digest the tailing of flood tide, cause the storage of tailing sharply to increase.
Summary of the invention
For the defective that exists in the above-mentioned prior art, it is high that technical problem to be solved by this invention provides a kind of mineral aggregate rate of recovery, can select the recoverying and utilizing method of the tailing of high-grade mineral aggregate.
In order to solve the problems of the technologies described above, the recoverying and utilizing method of a kind of tailing provided by the present invention is characterized in that, concrete steps are as follows:
1) roughly selects step
The Tailings Slurry that makes tailing by first to after flow through successively four magnetic outer peripheral faces of roughly selecting magnetic cylinder of tool, and drive four and roughly select magnetic cylinder and continue to rotate around self axis respectively, utilize four to roughly select magnetic cylinder and draw respectively the mineral grain that contains ferro element in the Tailings Slurry;
Described four roughly select magnetic cylinder by Tailings Slurry flow through order by first to after respectively be first and roughly select magnetic cylinder, second and roughly select magnetic cylinder, the 3rd and roughly select magnetic cylinder, the 4th and roughly select magnetic cylinder;
First roughly selects the magnetic induction control of magnetic cylinder in 3000 ± 50 Gausses;
Second roughly selects the magnetic induction control of magnetic cylinder in 6000 ± 50 Gausses;
The 3rd roughly selects the magnetic induction control of magnetic cylinder in 9000 ± 50 Gausses;
The 4th roughly selects the magnetic induction control of magnetic cylinder in 12000 ± 50 Gausses;
When four are roughly selected magnetic cylinder and rotate, roughly select magnetic cylinder from four and take off and compile being adsorbed on four mineral grains of roughly selecting the magnetic cylinder outer peripheral face, obtain roughly selecting mineral aggregate;
2) sizing screening step
Carry out sizing screening to roughly selecting mineral aggregate, separate grain with roughly selecting the mineral grain that can't pass 150 eye mesh screens in the mineral aggregate, the monomer particle diameter of these mineral grains is diminished to being enough to by 150 purpose screen clothes, and obtain the rough concentrate material after all compiling by the mineral grain of 150 eye mesh screens;
3) selected step
Make the ore pulp through the rough concentrate material that obtains behind step 2 sizing screening, by first to after flow through successively the outer peripheral face of four magnetic selected magnetic cylinders of tool, and drive four selected magnetic cylinders respectively around the lasting rotation of self axis, utilize four selected magnetic cylinders to draw respectively the mineral grain that contains ferro element in the rough concentrate material;
Described four selected magnetic cylinders by the rough concentrate material flow through order by first to after respectively be the first selected magnetic cylinder, the second selected magnetic cylinder, the 3rd selected magnetic cylinder, the 4th selected magnetic cylinder;
The magnetic induction control of the first selected magnetic cylinder is in 4000 ± 50 Gausses;
The magnetic induction control of the second selected magnetic cylinder is in 6000 ± 50 Gausses;
The magnetic induction control of the 3rd selected magnetic cylinder is in 9000 ± 50 Gausses;
The magnetic induction control of the 4th selected magnetic cylinder is in 12000 ± 50 Gausses;
When four selected magnetic cylinders rotate, the mineral grain that is adsorbed on four selected magnetic cylinder outer peripheral faces is taken off and compiles from four selected magnetic cylinders, obtain the iron ore concentrate material;
Utilize cleaning table that the rough concentrate material after processing through four selected magnetic cylinders is screened, can obtain the tin washed ore.
Further, the flowing velocity of Tailings Slurry is controlled under the non-setting state of Tailings Slurry energy natural flow, and the flowing velocity of rough concentrate material ore pulp is controlled under the non-setting state of ore pulp energy natural flow.
The recoverying and utilizing method of tailing provided by the invention, utilize first four magnetic induction intensity different roughly select magnetic cylinder, from tailing, select the mineral grain that is rich in ferro element, again by the sizing screening mode, and utilize four selected magnetic cylinders that magnetic induction intensity is different, iron compound is separated with tin, be rich in iron thereby select, the mineral aggregate of sulphur, and be rich in the mineral aggregate of tin, can be with most iron in the tailing, sulphur, tin extracts, has the very high rate of recovery, the mineral aggregate grade of selecting is also higher, utilizes the method that the artificial gold mine tailing is recycled and can obtain high-grade pyrite concentrate and tin washed ore, utilizes the method that the tin oxide mine tailing is recycled and can obtain high-grade iron fine powder and tin washed ore, and the structure of preparation equipment is also fairly simple, and cost is also relatively low.
Description of drawings
Fig. 1 is the flow chart of recoverying and utilizing method of the tailing of the embodiment of the invention.
The specific embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
As shown in Figure 1, the recoverying and utilizing method of a kind of tailing that the embodiment of the invention provides is characterized in that, concrete steps are as follows:
1) roughly selects step
The Tailings Slurry that makes tailing by first to after flow through successively four magnetic outer peripheral faces of roughly selecting magnetic cylinder of tool, and drive four by buncher and reductor and roughly select magnetic cylinder and continue to rotate around self axis respectively, utilize four to roughly select magnetic cylinder and draw respectively the mineral grain that contains ferro element in the Tailings Slurry;
Described four roughly select magnetic cylinder by Tailings Slurry flow through order by first to after respectively be first and roughly select magnetic cylinder, second and roughly select magnetic cylinder, the 3rd and roughly select magnetic cylinder, the 4th and roughly select magnetic cylinder;
The first magnetic induction control of roughly selecting magnetic cylinder is used for drawing Tailings Slurry in 3000 ± 50 Gausses, contains tri-iron tetroxide (Fe
3O
4) mineral grain, the mixed mineral grain of giving birth to of iron compound and tin;
The second magnetic induction control of roughly selecting magnetic cylinder is used for drawing the Tailings Slurry of roughly selecting after magnetic cylinder is processed through first in 6000 ± 50 Gausses, contains tri-iron tetroxide (Fe
3O
4) mineral grain, the mineral grain of Containing Sulfur ferrous (FeS) contains di-iron trioxide (Fe
2O
3) mineral grain, the mixed mineral grain of giving birth to of iron compound and tin;
Wherein, ferrous sulfide is present in the Tailings Slurry of artificial gold mine tailing usually, and di-iron trioxide is present in the Tailings Slurry of tin oxide mine tailing usually;
The 3rd magnetic induction control of roughly selecting magnetic cylinder is used for drawing the Tailings Slurry of roughly selecting after magnetic cylinder is processed through second in 9000 ± 50 Gausses, and the mineral grain of Containing Sulfur ferrous (FeS) contains di-iron trioxide (Fe
2O
3) mineral grain, the mixed mineral grain of giving birth to of iron compound and tin;
The 4th magnetic induction control of roughly selecting magnetic cylinder is used for drawing the Tailings Slurry of roughly selecting after magnetic cylinder is processed through the 3rd in 12000 ± 50 Gausses, and the mineral grain of Containing Sulfur ferrous (FeS) contains di-iron trioxide (Fe
2O
3) mineral grain, the mixed mineral grain of giving birth to of iron compound and tin;
When four are roughly selected magnetic cylinder and rotate, utilize scraper plate, hairbrush and water to rush mode, roughly select magnetic cylinder from four and take off and import a blanking groove being adsorbed on four mineral grains of roughly selecting the magnetic cylinder outer peripheral face, obtain roughly selecting mineral aggregate;
The Tailings Slurry of tailing flow through four roughly select magnetic cylinder after, the mineral grain that major part wherein contains ferro element is roughly selected magnetic cylinder by four and is siphoned away, remaining tailing drains into tailing and deposits a little, iron content is very low in the remaining tailing, without recycling value;
2) sizing screening step
Carry out sizing screening to roughly selecting mineral aggregate, separate grain with roughly selecting the mineral grain that can't pass 150 eye mesh screens in the mineral aggregate, the monomer particle diameter of these mineral grains is diminished to being enough to by 150 purpose screen clothes, and obtain the rough concentrate material after all compiling by the mineral grain of 150 eye mesh screens, in tailing, iron compound and tin are mixed giving birth to, extremely can be by behind 150 eye mesh screens with the mineral grain solution grain of roughly selecting in the mineral aggregate, in the resulting rough concentrate material, iron compound greatly and tin is separated opening;
To carry out the method for sizing screening as follows to roughly selecting mineral aggregate:
The mineral aggregate of roughly selecting that compiles in the blanking groove is imported spiral classifier, and utilize 150 purpose screen clothes to carry out sizing screening to roughly selecting mineral aggregate at the discharging opening of spiral classifier;
In the discharging of spiral classifier, can not compile by the mineral grain of 150 eye mesh screens rear importing ball mill, utilize ball mill that these mineral grains are separated grain, the monomer particle diameter of these mineral grains is diminished, then back into spiral classifier, utilize 150 purpose screen clothes again to carry out sizing screening;
3) selected step
Make the ore pulp through the rough concentrate material that obtains behind step 2 sizing screening, by first to after flow through successively the outer peripheral face of four magnetic selected magnetic cylinders of tool, and drive four selected magnetic cylinders by buncher and reductor and continue to rotate around self axis respectively, utilize four selected magnetic cylinders to draw respectively the mineral grain that contains ferro element in the rough concentrate material;
Described four selected magnetic cylinders by the rough concentrate material flow through order by first to after respectively be the first selected magnetic cylinder, the second selected magnetic cylinder, the 3rd selected magnetic cylinder, the 4th selected magnetic cylinder;
The magnetic induction control of the first selected magnetic cylinder is used for drawing the rough concentrate material in 4000 ± 50 Gausses, contains tri-iron tetroxide (Fe
3O
4) mineral grain, the mineral grain of Containing Sulfur ferrous (FeS);
The magnetic induction control of the second selected magnetic cylinder is used for drawing the rough concentrate material after the first selected magnetic cylinder is processed in 6000 ± 50 Gausses, contains tri-iron tetroxide (Fe
3O
4) mineral grain, and the mineral grain of Containing Sulfur ferrous (FeS) contains di-iron trioxide (Fe
2O
3) mineral grain;
The magnetic induction control of the 3rd selected magnetic cylinder is used for drawing the rough concentrate material after the second selected magnetic cylinder is processed in 9000 ± 50 Gausses, and the particle of Containing Sulfur ferrous (FeS) contains di-iron trioxide (Fe
2O
3) particle;
The magnetic induction control of the 4th selected magnetic cylinder is used for drawing the rough concentrate material after the 3rd selected magnetic cylinder is processed in 12000 ± 50 Gausses, and the particle of Containing Sulfur ferrous (FeS) contains di-iron trioxide (Fe
2O
3) particle;
When four selected magnetic cylinders rotate, utilize scraper plate, hairbrush and water to rush mode, the mineral grain that is adsorbed on four selected magnetic cylinder outer peripheral faces is taken off and imports the iron fine fodder pond from four selected magnetic cylinders, obtain the iron ore concentrate material;
If the tailing of recycling is the artificial gold mine tailing, the iron ore concentrate material that then obtains is pyrite concentrate, and its sulfur content is about 35%, and iron-holder is about 50%;
If the tailing of recycling is the tin oxide mine tailing, the iron ore concentrate material that then obtains is the iron fine powder, and its iron-holder is about 58%;
After the rough concentrate material is processed through four selected magnetic cylinders, the mineral grain that major part wherein contains ferro element is siphoned away by four selected magnetic cylinders, in the remaining tailing enrichment tin sand (stanniferous amount about 1%), utilize cleaning table that the rough concentrate material after processing through four selected magnetic cylinders is screened, can obtain the tin washed ore of stanniferous amount about 40%, tailing after the cleaning table Screening Treatment drains into tailing and deposits a little, and tin element content is very low in the remaining tailing, is worth without recycling.
In the embodiment of the invention, roughly select magnetic cylinder for four and be the stainless steel drum, four length of roughly selecting magnetic cylinder are 3 meters, and diameter is 40 centimetres, and four rotating speeds of roughly selecting magnetic cylinder can be regulated respectively according to the actual requirements.
In the embodiment of the invention, four selected magnetic cylinders are the stainless steel drum, and the length of four selected magnetic cylinders is 3 meters, and diameter is 40 centimetres, and the rotating speed of four selected magnetic cylinders can be regulated respectively according to the actual requirements.
In the embodiment of the invention, in referring to per square inch, described 150 eye mesh screens are provided with the screen cloth of 150 mesh.
In the embodiment of the invention, the flowing velocity of Tailings Slurry is controlled under the non-setting state of Tailings Slurry energy natural flow, the ore dressing effect can reach the best, the flowing velocity of rough concentrate material ore pulp is controlled under the non-setting state of ore pulp energy natural flow, the ore dressing effect can reach the best, preferably can utilize natural-drop guiding Tailings Slurry, rough concentrate material ore pulp to flow, avoid using ore slurry pump, with energy savings, cost as far as possible.
After recycling through the method for the embodiment of the invention, finally drain into tailing and deposit in a little the tailing stanniferous approximately 0.19%, sulfur-bearing is about 1.5%, and iron content is about 3%, without the value that is recycled.
Claims (2)
1. the recoverying and utilizing method of a tailing is characterized in that, concrete steps are as follows:
1) roughly selects step
The Tailings Slurry that makes tailing by first to after flow through successively four magnetic outer peripheral faces of roughly selecting magnetic cylinder of tool, and drive four and roughly select magnetic cylinder and continue to rotate around self axis respectively, utilize four to roughly select magnetic cylinder and draw respectively the mineral grain that contains ferro element in the Tailings Slurry;
Described four roughly select magnetic cylinder by Tailings Slurry flow through order by first to after respectively be first and roughly select magnetic cylinder, second and roughly select magnetic cylinder, the 3rd and roughly select magnetic cylinder, the 4th and roughly select magnetic cylinder;
First roughly selects the magnetic induction control of magnetic cylinder in 3000 ± 50 Gausses;
Second roughly selects the magnetic induction control of magnetic cylinder in 6000 ± 50 Gausses;
The 3rd roughly selects the magnetic induction control of magnetic cylinder in 9000 ± 50 Gausses;
The 4th roughly selects the magnetic induction control of magnetic cylinder in 12000 ± 50 Gausses;
When four are roughly selected magnetic cylinder and rotate, roughly select magnetic cylinder from four and take off and compile being adsorbed on four mineral grains of roughly selecting the magnetic cylinder outer peripheral face, obtain roughly selecting mineral aggregate;
2) sizing screening step
Carry out sizing screening to roughly selecting mineral aggregate, separate grain with roughly selecting the mineral grain that can't pass 150 eye mesh screens in the mineral aggregate, the monomer particle diameter of these mineral grains is diminished to being enough to by 150 purpose screen clothes, and obtain the rough concentrate material after all compiling by the mineral grain of 150 eye mesh screens;
3) selected step
Make the ore pulp through the rough concentrate material that obtains behind step 2 sizing screening, by first to after flow through successively the outer peripheral face of four magnetic selected magnetic cylinders of tool, and drive four selected magnetic cylinders respectively around the lasting rotation of self axis, utilize four selected magnetic cylinders to draw respectively the mineral grain that contains ferro element in the rough concentrate material;
Described four selected magnetic cylinders by the rough concentrate material flow through order by first to after respectively be the first selected magnetic cylinder, the second selected magnetic cylinder, the 3rd selected magnetic cylinder, the 4th selected magnetic cylinder;
The magnetic induction control of the first selected magnetic cylinder is in 4000 ± 50 Gausses;
The magnetic induction control of the second selected magnetic cylinder is in 6000 ± 50 Gausses;
The magnetic induction control of the 3rd selected magnetic cylinder is in 9000 ± 50 Gausses;
The magnetic induction control of the 4th selected magnetic cylinder is in 12000 ± 50 Gausses;
When four selected magnetic cylinders rotate, the mineral grain that is adsorbed on four selected magnetic cylinder outer peripheral faces is taken off and compiles from four selected magnetic cylinders, obtain the iron ore concentrate material;
Utilize cleaning table that the rough concentrate material after processing through four selected magnetic cylinders is screened, can obtain the tin washed ore.
2. the recoverying and utilizing method of tailing according to claim 1, it is characterized in that, the flowing velocity of Tailings Slurry is controlled under the non-setting state of Tailings Slurry energy natural flow, and the flowing velocity of rough concentrate material ore pulp is controlled under the non-setting state of ore pulp energy natural flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210515175.7A CN102974460B (en) | 2012-12-05 | 2012-12-05 | Method for recycling tin tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210515175.7A CN102974460B (en) | 2012-12-05 | 2012-12-05 | Method for recycling tin tailings |
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| Publication Number | Publication Date |
|---|---|
| CN102974460A true CN102974460A (en) | 2013-03-20 |
| CN102974460B CN102974460B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210515175.7A Expired - Fee Related CN102974460B (en) | 2012-12-05 | 2012-12-05 | Method for recycling tin tailings |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107755A (en) * | 2014-05-26 | 2014-10-22 | 范振捷 | Ore dressing process for removing arsenic and sulphur from bellmetal ore |
| CN104195352A (en) * | 2014-08-20 | 2014-12-10 | 来宾华锡冶炼有限公司 | Method for recovering tin metal from tin-containing waste bricks |
| WO2016187862A1 (en) * | 2015-05-28 | 2016-12-01 | 张宝祥 | Tailings resource recovery technology |
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| CN102658236A (en) * | 2012-04-25 | 2012-09-12 | 广西华锡集团股份有限公司 | Method for recovering fine mud cassiterite |
| CN102728452A (en) * | 2012-05-31 | 2012-10-17 | 陈涛 | Method for effectively separating and recovering tin and iron in refractory paragenetic tailings |
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2012
- 2012-12-05 CN CN201210515175.7A patent/CN102974460B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1593775A (en) * | 2004-07-12 | 2005-03-16 | 洋浦金海铝业工贸有限公司 | Method for magnetic separating of aluminum and iron in high iron bauxite |
| CN1721080A (en) * | 2004-07-13 | 2006-01-18 | 黎东明 | Cassiterite ore separation method |
| CN1810381A (en) * | 2005-01-28 | 2006-08-02 | 黎东明 | Multi-metal cassiterite sulfurizing tail concentrating method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107755A (en) * | 2014-05-26 | 2014-10-22 | 范振捷 | Ore dressing process for removing arsenic and sulphur from bellmetal ore |
| CN104195352A (en) * | 2014-08-20 | 2014-12-10 | 来宾华锡冶炼有限公司 | Method for recovering tin metal from tin-containing waste bricks |
| WO2016187862A1 (en) * | 2015-05-28 | 2016-12-01 | 张宝祥 | Tailings resource recovery technology |
| US10722903B2 (en) | 2015-05-28 | 2020-07-28 | Bei Jing Ke Neng Mei Da Er Huan Bao Ke Ji Co., Ltd. | Tailings resource recovery process |
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| CN102974460B (en) | 2015-01-21 |
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