CN102974452A - Method for treating high-mud-content fine-graded iron tailings - Google Patents
Method for treating high-mud-content fine-graded iron tailings Download PDFInfo
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- CN102974452A CN102974452A CN2012104983065A CN201210498306A CN102974452A CN 102974452 A CN102974452 A CN 102974452A CN 2012104983065 A CN2012104983065 A CN 2012104983065A CN 201210498306 A CN201210498306 A CN 201210498306A CN 102974452 A CN102974452 A CN 102974452A
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Abstract
The invention provides a method for treating high-mud-content fine-graded iron tailings. The method is characterized by comprising the following steps of: feeding high-mud-content fine-graded iron tailings into a first-stage thickener for precipitating to separate overflow water and bottom current out; feeding the bottom current into a cyclone for grading into high-mud-content top current and fine-graded tailing bottom current out; feeding high-mud-content top current into a second thickener for precipitating to separate overflow water and bottom current out, feeding the bottom current to a plate and frame filter press for treating to obtain filtrate and a filter cake, returning the filtrate to the second thickener for precipitating, and feeding the filter cake to a storage yard for piling; and feeding the high-mud-content top current into the second thickener for precipitating, separating overflow water and bottom current out, feeding the bottom current to the plate and frame filter press for treating to obtain filtrate and a filter cake, returning the filtrate to the second thickener for precipitating, and feeding the filter cake to the storage yard for piling. Due to the adoption of the method, the problem of dehydration of the high-mud-content fine-graded iron tailings is solved, 0.3-0.6 ton of overflow water can be recovered additionally from every ton of tailings, dry piling of high-mud-content fine-graded iron tailings is realized, and the high potential safety hazard of dam-break is eliminated.
Description
Technical field
The present invention relates to a kind of tailings processing method, especially a kind of height is contained the method that mud fine fraction mine tailing is processed, belong to the technique of preparing field.
Background technology
Tailing dry-heaping is that ore pulp is carried out processed with certain process and equipment, make it reach the requirement that can directly stack after, stack in sequence.The mode of this tailing dry-heaping is used so far always.Initial people just consider from the angle of environmental protection, and when mine tailing poisonous, harmful to those, radioactive mineral carried out dehydration dried stack, also needing of having carried out buried, perhaps needs to seal to store up.In recent years because the negligence of management of part Tailings Dam, or not in accordance with regulations, the standard construction, cause dam-break accident, cause very big loss to people's lives and properties.Iron ore belongs to the low value mineral products, and the mine tailing productive rate is higher, is generally nontoxic, harmless, "dead" material, compares with noble metal, non-ferrous metal, and the cost that tailing dry-heaping is processed is higher.The at present domestic processing that height is contained mud fine fraction iron tailings dehydration dried stack is also without technology or the experience of maturation.Tailings dewatering often different because of grade, contain the mud difference, and adopt different dewaterings.Less to containing mud, the accounting for more than 50% of mine tailing grade+0.074mm ,-0.037mm account for mine tailing below 30%, can adopt the dehydration of disk vacuum filter or band filter; And for containing mud more than 25% ,-0.037mm accounts for fine fraction mine tailing more than 50%, and dehydration dried stack is processed then very difficult.
Summary of the invention
Dewater for better height being contained mud fine fraction mine tailing, improve the cyclic utilization rate of mineral processing production water, reduce the risk of Tailings Dam.The invention provides a kind of high processing method that contains mud fine fraction iron tailings, make the fine fraction mine tailing after the processing can do heap.
The present invention finishes by following technical proposal: a kind of high processing method that contains mud fine fraction iron tailings is characterized in that through the following step:
1), height that strong magnetic ore separation is produced contains mud fine fraction mine tailing, send into the first concentrator sedimentation after, isolate overflow water and underflow;
2), send cyclone to carry out classification the underflow of step 1) after, tell height and contain mud top stream and fine fraction mine tailing underflow;
3), with step 2) height contain mud top stream and send into the second concentrator sedimentation after, isolate overflow water and underflow, underflow obtains filtrate and filter cake after sending plate and frame filter press to process, filtrate is returned the second concentrator sedimentation, filter cake send the stockyard to stack;
4), with step 2) fine fraction mine tailing underflow send into the 3rd concentrator sedimentation after, isolate overflow water and underflow, underflow obtains filtrate and filter cake after sending disk vacuum filter to process, filtrate is returned the 3rd concentrator sedimentation, filter cake send the stockyard to stack;
5) overflow water, step 1), 3), 4) is all sent pool circulating back to and is used.
Described step 3), 4) filter cake is delivered to the stockyard by automobile again and is stacked after conveyer is carried.
The present invention has following advantages and effect: by separating of thick, thin mine tailing, solved the high dehydration problem that contains mud fine fraction mine tailing, compare with the traditional tailing deposition dehydrating, mine tailing per ton can be recycled 0.3～0.6 ton of overflow water more, not only saved water resource, realize simultaneously the high dried heap that contains mud fine fraction mine tailing, having solved this type of mine tailing is difficult to dehydration and can only forms Tailings Dam and deposit, and there is the high security risk problem of dam break, have and process conveniently, the advantages such as technique is simple, and cost is low, and treating capacity is large.
Description of drawings
Fig. 1 is the present invention's process chart.
The specific embodiment
Below in conjunction with embodiment the present invention is described further.
Embodiment 1
1), height that strong magnetic ore separation is produced contains mud fine fraction mine tailing, this mine tailing granularmetric composition sees Table 1, send into the first concentrator (1# concentrator) sedimentation after, go out respectively overflow water and underflow, overflow water is sent the pond back to, uses as producing water;
2), send cyclone to carry out classification the underflow of step 1) after, tell height contain mud top stream and+the above fine fraction mine tailing underflow of 0.045mm;
3), with step 2) height contain mud top stream and send into the second concentrator (2# concentrator) sedimentation after, isolate overflow water and underflow, overflow water is sent the pond back to, use as producing water, mass concentration is after 40～50% underflow send plate and frame filter press to process, to obtain filtrate and filter cake, and filtrate is returned the second concentrator (2# concentrator) sedimentation, filter cake is delivered to the stockyard by automobile again and is stacked after belt conveyor is carried;
4), with step 2)+after the above fine fraction mine tailing underflow of 0.045mm is sent into the 3rd concentrator (3# concentrator) sedimentation, isolate overflow water and underflow, overflow water is sent the pond back to, use as producing water, mass concentration is after 40～50% underflow send disk vacuum filter to process, to obtain filtrate and filter cake, and filtrate is returned the 3rd concentrator (3# concentrator) sedimentation, filter cake is delivered to the stockyard by automobile again and is stacked after belt conveyor is carried.
Table 1 contains mud fine fraction iron tailings granularmetric composition situation
Claims (2)
1. one kind high processing method that contains mud fine fraction iron tailings is characterized in that through the following step:
1), height that strong magnetic ore separation is produced contains mud fine fraction mine tailing, send into the first concentrator sedimentation after, isolate overflow water and underflow;
2), send cyclone to carry out classification the underflow of step 1) after, tell height and contain mud top stream and fine fraction mine tailing underflow;
3), with step 2) height contain mud top stream and send into the second concentrator sedimentation after, isolate overflow water and underflow, underflow obtains filtrate and filter cake after sending plate and frame filter press to process, filtrate is returned the second concentrator sedimentation, filter cake send the stockyard to stack;
4), with step 2) fine fraction mine tailing underflow send into the 3rd concentrator sedimentation after, isolate overflow water and underflow, underflow obtains filtrate and filter cake after sending disk vacuum filter to process, filtrate is returned the 3rd concentrator sedimentation, filter cake send the stockyard to stack;
5) overflow water, step 1), 3), 4) is all sent pool circulating back to and is used.
2. height as claimed in claim 1 contains the processing method of mud fine fraction iron tailings, it is characterized in that described step 3), 4) filter cake after conveyer is carried, deliver to the stockyard by automobile again and stack.
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| CN2012104983065A CN102974452A (en) | 2012-11-29 | 2012-11-29 | Method for treating high-mud-content fine-graded iron tailings |
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| CN2012104983065A CN102974452A (en) | 2012-11-29 | 2012-11-29 | Method for treating high-mud-content fine-graded iron tailings |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230832A (en) * | 2013-04-15 | 2013-08-07 | 安徽金日盛矿业有限责任公司 | Beneficiation method for recovering fine fraction iron from strong magnetic separation gangues of ferric oxide ores |
| CN103301679A (en) * | 2013-06-26 | 2013-09-18 | 南京梅山冶金发展有限公司 | Tailing dewatering method |
| CN103301933A (en) * | 2013-06-26 | 2013-09-18 | 南京梅山冶金发展有限公司 | Comprehensive tailing utilizing technology |
| CN105195304A (en) * | 2015-07-24 | 2015-12-30 | 石家庄金垦科技有限公司 | Sorting process for improving quality and reducing impurities of low-grade magnetite concentrate |
| CN105363275A (en) * | 2014-08-08 | 2016-03-02 | 范思远 | A thickening and dewatering method for tailings and applications thereof |
| CN105478225A (en) * | 2016-01-05 | 2016-04-13 | 北京科技大学 | Tailings grading and zoning high-concentration discharging system and method |
| CN106799301A (en) * | 2016-12-23 | 2017-06-06 | 杨富森 | A kind of ore dressing based on computer program control is dry to flow back to water controling method |
| CN107552220A (en) * | 2017-08-30 | 2018-01-09 | 玉溪大红山矿业有限公司 | A kind of safe screen ore dressing optimize technique for effectively improving concentrate yield |
| CN110732165A (en) * | 2019-11-26 | 2020-01-31 | 烟台鑫矿工程技术服务有限公司 | system and method for improving processing capacity of thickener |
| CN111822158A (en) * | 2019-04-14 | 2020-10-27 | 宝钢集团新疆八一钢铁有限公司 | Process for constructing tailing dam by using cyclone |
| CN114212911A (en) * | 2021-11-30 | 2022-03-22 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Tailing separation method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230832A (en) * | 2013-04-15 | 2013-08-07 | 安徽金日盛矿业有限责任公司 | Beneficiation method for recovering fine fraction iron from strong magnetic separation gangues of ferric oxide ores |
| CN103301679A (en) * | 2013-06-26 | 2013-09-18 | 南京梅山冶金发展有限公司 | Tailing dewatering method |
| CN103301933A (en) * | 2013-06-26 | 2013-09-18 | 南京梅山冶金发展有限公司 | Comprehensive tailing utilizing technology |
| CN103301933B (en) * | 2013-06-26 | 2015-06-03 | 南京梅山冶金发展有限公司 | Comprehensive tailing utilizing technology |
| CN103301679B (en) * | 2013-06-26 | 2015-11-18 | 南京梅山冶金发展有限公司 | A kind of tailings dewatering method |
| CN105363275A (en) * | 2014-08-08 | 2016-03-02 | 范思远 | A thickening and dewatering method for tailings and applications thereof |
| CN105195304A (en) * | 2015-07-24 | 2015-12-30 | 石家庄金垦科技有限公司 | Sorting process for improving quality and reducing impurities of low-grade magnetite concentrate |
| CN105478225A (en) * | 2016-01-05 | 2016-04-13 | 北京科技大学 | Tailings grading and zoning high-concentration discharging system and method |
| CN106799301A (en) * | 2016-12-23 | 2017-06-06 | 杨富森 | A kind of ore dressing based on computer program control is dry to flow back to water controling method |
| CN107552220A (en) * | 2017-08-30 | 2018-01-09 | 玉溪大红山矿业有限公司 | A kind of safe screen ore dressing optimize technique for effectively improving concentrate yield |
| CN111822158A (en) * | 2019-04-14 | 2020-10-27 | 宝钢集团新疆八一钢铁有限公司 | Process for constructing tailing dam by using cyclone |
| CN110732165A (en) * | 2019-11-26 | 2020-01-31 | 烟台鑫矿工程技术服务有限公司 | system and method for improving processing capacity of thickener |
| CN110732165B (en) * | 2019-11-26 | 2023-09-29 | 烟台鑫矿服工程管理集团有限公司 | System and method for improving throughput of thickener |
| CN114212911A (en) * | 2021-11-30 | 2022-03-22 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Tailing separation method |
| CN114212911B (en) * | 2021-11-30 | 2023-12-22 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Tailing separating method |
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Application publication date: 20130320 |