CN103657840A - Dry type discharge method of phosphorus ore tailings - Google Patents
Dry type discharge method of phosphorus ore tailings Download PDFInfo
- Publication number
- CN103657840A CN103657840A CN201310286349.1A CN201310286349A CN103657840A CN 103657840 A CN103657840 A CN 103657840A CN 201310286349 A CN201310286349 A CN 201310286349A CN 103657840 A CN103657840 A CN 103657840A
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- Prior art keywords
- filter
- tailings
- thickener
- press
- dry type
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- 238000000034 method Methods 0.000 title claims abstract description 27
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052698 phosphorus Inorganic materials 0.000 title abstract 4
- 239000011574 phosphorus Substances 0.000 title abstract 4
- 239000002562 thickening agent Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000018044 dehydration Effects 0.000 claims abstract description 16
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 16
- 239000012065 filter cake Substances 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000002367 phosphate rock Substances 0.000 claims description 30
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 26
- 239000000706 filtrate Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- 238000004062 sedimentation Methods 0.000 claims description 8
- 238000005188 flotation Methods 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011362 coarse particle Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 239000010419 fine particle Substances 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- Treatment Of Sludge (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a dry type discharge method of phosphorus ore tailings. The tailings left after ore dressing of phosphorus ore are conveyed to a hydrocyclone through a slurry pump for grading, coarse particles with the thickness of +200 meshes flow out from a bottom flowing port of the hydrocyclone, and then filtering dehydration is carried out on the particles with a vacuum filter; fine particles with the thickness of -200 meshes flow out from an overflowing port of the hydrocyclone and enter a thickener, meanwhile, an appropriate amount of flocculating agent is added, after slurry is settled and concentrated through the thickener, bottom flow is pressed into a filter press through the slurry pump for high-pressure dehydration, filter cakes obtained after dehydration of the vacuum filter and the filter press are conveyed to be piled up at tailings stock dumps or fill goafs, and overflowing water of the thickener and filter liquor of the vacuum filter and the filter press flow into a water return tank. By means of the dry type discharge method of the phosphorus ore tailings, a tailings pond is thoroughly omitted for a dressing plant, the construction cost and conventional maintenance cost for the traditional tailings pond are saved, occupied space is largely saved, and potential safety hazards of the tailings pond are eliminated. Besides, the dry tailings can be used for filling the underground goafs and overground pits, and potential safety hazards of the goafs are eliminated.
Description
Technical field
The present invention relates to a kind for the treatment of process of mine tailing, particularly a kind of phosphorite tailings dry type discharge method.
Background technology
At present, domestic phosphorite tailings adopts the in line mode of wet type to enter Tailings Dam mainly with ore pulp state, mine tailing carries out natural sedimentation, and owing to containing a large amount of beneficiation reagents and harmful substance in ore pulp, these medicaments and harmful substance are as can not qualified discharge, to environment be caused and be had a strong impact on, simultaneously Tailings Dam floor space is large, and investment cost is high, also needs to drop into a large amount of personnel every year and fund is carried out security maintenance and management, once security maintenance and management are not in place, will there is larger potential safety hazard.Therefore seek more economical safer more rational discharge method significant.
Summary of the invention
Technical problem to be solved by this invention is not enough for prior art, proposes a kind of reasonable in design, economic, safe phosphorite tailings dry type discharge method.
Technical problem to be solved by this invention is achieved through the following technical solutions.The present invention is a kind of phosphorite tailings dry type discharge technology, be characterized in, its step is as follows: the tail method of slurry pumps for mines after flotation of phosphate rock is delivered to hydrocyclone and carries out classification, control cyclone pan feeding concentration 10% ~ 25%, inlet pressure is 0.10～0.20MPa, make+200 order coarse granules flow out from cyclone underflow opening, then with vacuum filter, carry out filtering means dehydration; And-200 order fine graineds flow out from cyclone overfall, enter thickener, add a certain amount of flocculant simultaneously, slip is after thickener sedimentation concentration, underflow is squeezed into filter press with slag stock pump and is carried out high press-dehydrating, and the filter cake of vacuum filter and cake of filter-press are transported to that tailings stack is stored up or bashing (also can fully utilize it); The filtrate of the overflow water of thickener, vacuum filter and filter press enters reclaims pond.
Technical problem to be solved by this invention can also be come further to realize by the following technical programs.The above a kind of phosphorite tailings dry type discharge technology, is characterized in, above-described vacuum filter is preferably horizontal vacuum belt filter or ceramic filter.
Technical problem to be solved by this invention can also be come further to realize by the following technical programs.The above a kind of phosphorite tailings dry type discharge technology, is characterized in, above-described filter press is preferably plate and frame type filter-press, chamber-type press filter or Full-automation vertical filter press.
Technical problem to be solved by this invention can also be come further to realize by the following technical programs.The above a kind of phosphorite tailings dry type discharge technology, is characterized in, the concentrated flocculant used of above-described thickener is preferably polyacrylamide, and its consumption is preferably 10 ~ 30g/t raw ore.
Technical problem to be solved by this invention can also be come further to realize by the following technical programs.The above a kind of phosphorite tailings dry type discharge technology, is characterized in, the filtrate of the overflow of thickener, vacuum filter and filter press flows into after back pool, then each uses water spot with pump, backwater to be back to ore dressing plant, recycles.
Technical problem to be solved by this invention can also be come further to realize by the following technical programs.The above a kind of phosphorite tailings dry type discharge technology, is characterized in, vacuum filter and cake of filter-press are transported to tailings stack and store up or return to stope filling goaf, also can fully utilize tailing cake.
The application of the inventive method, will make ore dressing plant thoroughly get rid of Tailings Dam, not only save construction cost and the General Maintenance expense of traditional tailing, also greatly save floor space, eliminate the potential safety hazard of Tailings Dam.Can, with dry mine tailing filling Goaf Area and pit, ground, eliminate the potential safety hazard in goaf in addition.This will open up a brand-new route for mine safety improvement, goaf harnessing, ecological environment treatment and energy-saving and emission-reduction, have significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is a kind of process chart of the present invention.
The specific embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
Embodiment 1, with reference to Fig. 1, a kind of phosphorite tailings dry type discharge method, its step is as follows: the tail method of slurry pumps for mines after flotation of phosphate rock is delivered to hydrocyclone and carries out classification, control cyclone pan feeding mass concentration 10%, inlet pressure is 0.10MPa, and make+200 order coarse granules flow out from cyclone underflow opening, then with vacuum filter, carry out filtering means dehydration; And-200 order fine graineds flow out from cyclone overfall, enter thickener, add appropriate flocculant simultaneously, slip is after thickener sedimentation concentration, underflow is squeezed into filter press with slag stock pump and is carried out high press-dehydrating, filter cake after the dehydration of vacuum filter and filter press is transported to that tailings stack is stored up or bashing, and the filtrate of the overflow water of thickener, vacuum filter and filter press flows into back pool.
Embodiment 2, with reference to Fig. 1, a kind of phosphorite tailings dry type discharge method, its step is as follows: the tail method of slurry pumps for mines after flotation of phosphate rock is delivered to hydrocyclone and carries out classification, control cyclone pan feeding mass concentration 25%, inlet pressure is 0.20MPa, and make+200 order coarse granules flow out from cyclone underflow opening, then with vacuum filter, carry out filtering means dehydration; And-200 order fine graineds flow out from cyclone overfall, enter thickener, add appropriate flocculant simultaneously, slip is after thickener sedimentation concentration, underflow is squeezed into filter press with slag stock pump and is carried out high press-dehydrating, filter cake after the dehydration of vacuum filter and filter press is transported to that tailings stack is stored up or bashing, and the filtrate of the overflow water of thickener, vacuum filter and filter press flows into back pool.
Embodiment 3, with reference to Fig. 1, a phosphorite tailings dry type discharge method, the phosphorite tailings after the flotation of somewhere, its weight concentration is 15%, with slag stock pump, be delivered to hydrocyclone and carried out classification, controlling cyclone inlet pressure is 0.15MPa, and make+200 order coarse granules flow out from cyclone underflow opening, and-200 order fine graineds flow out from cyclone overfall, then with horizontal vacuum belt filter right+200 order coarse-particle slurries carry out filtering means dehydration, obtain the filter cake of water content 8%; And-200 order fine graineds are from cyclone overfall flows out, entering thickener concentrates, add consumption is the polyacrylamide of 20g/t raw ore simultaneously, slip is after thickener sedimentation concentration, thickener underflow is squeezed into Full-automation vertical filter press with slag stock pump and is carried out high press-dehydrating, obtain the filter cake of water content 10%, the filter cake after vacuum filter and filter press dehydration is transported to tailings stack and stores up, and the filtrate of the overflow water of thickener, vacuum filter and filter press enters back pool.
Embodiment 4, with reference to Fig. 1, a phosphorite tailings dry type discharge method, the phosphorite tailings after the flotation of somewhere, its weight concentration is 24%, with slag stock pump, be delivered to hydrocyclone and carried out classification, controlling cyclone inlet pressure is 0.25MPa, and make+200 order coarse granules flow out from cyclone underflow opening, and-200 order fine graineds flow out from cyclone overfall, then with horizontal vacuum belt filter right+200 order coarse-particle slurries carry out filtering means dehydration, obtain the filter cake of water content 9%; And-200 order fine graineds are from cyclone overfall flows out, entering thickener concentrates, add consumption is the polyacrylamide of 30g/t raw ore simultaneously, slip is after thickener sedimentation concentration, thickener underflow is squeezed into plate and frame filter press with slag stock pump and is carried out high press-dehydrating, obtain the filter cake of water content 12%, the filter cake after vacuum filter and filter press dehydration is transported to tailings stack and stores up, and the filtrate of the overflow water of thickener, vacuum filter and filter press enters back pool.
Embodiment 5, with reference to Fig. 1, a phosphorite tailings dry type discharge method, the phosphorite tailings after the flotation of somewhere, its weight concentration is 10%, with slag stock pump, be delivered to hydrocyclone and carried out classification, controlling cyclone inlet pressure is 0.10MPa, and make+200 order coarse granules flow out from cyclone underflow opening, and-200 order fine graineds flow out from cyclone overfall, then with ceramic filter right+200 order coarse-particle slurries carry out filtering means dehydration, obtain the filter cake of water content 10%; And-200 order fine graineds are from cyclone overfall flows out, entering thickener concentrates, add consumption is the polyacrylamide of 10g/t raw ore simultaneously, slip is after thickener sedimentation concentration, thickener underflow is squeezed into chamber-type press filter with slag stock pump and is carried out high press-dehydrating, obtain the filter cake of water content 12%, the filter cake after vacuum filter and filter press dehydration is transported to tailings stack and stores up, and the filtrate of the overflow water of thickener, vacuum filter and filter press enters back pool.
Embodiment 6, in the phosphorite tailings dry type discharge method of embodiment 1-5 described in any one: the filtrate of described thickener overflow, vacuum filter and filter press flows into after back pool, then with pump by backwater be back to ore dressing plant each with water spot, recycle.
Embodiment 7, in the phosphorite tailings dry type discharge method of embodiment 1-6 described in any one: described vacuum filter and cake of filter-press are transported to that tailings stack is stored up or goaf, mining with stowing field.
Embodiment 8, in the phosphorite tailings dry type discharge method of embodiment 1-7 described in any one: vacuum filter and cake of filter-press are fully utilized, for the preparation of cement or construction material etc.
Claims (5)
1. a phosphorite tailings dry type discharge method, it is characterized in that, its step is as follows: the tail method of slurry pumps for mines after flotation of phosphate rock is delivered to hydrocyclone and carries out classification, control cyclone pan feeding mass concentration 10 ~ 25%, inlet pressure is 0.10～0.20MPa, make+200 order coarse granules flow out from cyclone underflow opening, then with vacuum filter, carry out filtering means dehydration; And-200 order fine graineds flow out from cyclone overfall, enter thickener, add appropriate flocculant simultaneously, slip is after thickener sedimentation concentration, underflow is squeezed into filter press with slag stock pump and is carried out high press-dehydrating, filter cake after the dehydration of vacuum filter and filter press is transported to that tailings stack is stored up or bashing, and the filtrate of the overflow water of thickener, vacuum filter and filter press flows into back pool.
2. according to the phosphorite tailings dry type discharge method described in claim 1, it is characterized in that: described vacuum filter is horizontal vacuum belt filter or ceramic filter.
3. according to the phosphorite tailings dry type discharge method described in claim 1, it is characterized in that: described filter press is plate and frame type filter-press, chamber-type press filter or Full-automation vertical filter press.
4. according to the phosphorite tailings dry type discharge method described in claim 1, it is characterized in that: the concentrated flocculant used of thickener is polyacrylamide, and its consumption is 10 ~ 30g/t raw ore.
5. according to the phosphorite tailings dry type discharge method described in claim 1, it is characterized in that: the filtrate of the overflow of thickener, vacuum filter and filter press flows into after back pool, then each uses water spot with pump, backwater to be back to ore dressing plant, recycles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310286349.1A CN103657840A (en) | 2013-07-10 | 2013-07-10 | Dry type discharge method of phosphorus ore tailings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310286349.1A CN103657840A (en) | 2013-07-10 | 2013-07-10 | Dry type discharge method of phosphorus ore tailings |
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| CN103657840A true CN103657840A (en) | 2014-03-26 |
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| CN201310286349.1A Pending CN103657840A (en) | 2013-07-10 | 2013-07-10 | Dry type discharge method of phosphorus ore tailings |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480948A (en) * | 2014-12-11 | 2015-04-01 | 广西华银铝业有限公司 | Tailing heap discharge method combined with dry heaping and wet discharging |
| CN104922943A (en) * | 2015-04-27 | 2015-09-23 | 云南磷化集团有限公司 | Collophanite direct flotation fine-grade tailing settlement concentration method |
| CN105032601A (en) * | 2015-06-29 | 2015-11-11 | 江西省莲花山矿产实业有限公司 | Tailing disposal method |
| CN105127010A (en) * | 2015-09-30 | 2015-12-09 | 河南东大矿业股份有限公司 | Charging combination device of monohydrallite direct flotation tallings filter press |
| CN105396685A (en) * | 2015-12-21 | 2016-03-16 | 云南磷化集团有限公司 | Dry discharge technology for phosphate tailings generated during mineral separation |
| CN105879445A (en) * | 2016-05-31 | 2016-08-24 | 中国矿业大学(北京) | Slime water two-stage filtering technology |
| CN105903556A (en) * | 2016-04-14 | 2016-08-31 | 山东鑫海矿业技术装备股份有限公司 | Energy-efficient tailings dry-type deslagging technique |
| CN109647617A (en) * | 2018-12-28 | 2019-04-19 | 江西省宜丰万国矿业有限公司 | A kind of method that non-ferrous metal underground mine tailing proposes iron sulfur reduction |
| CN111589221A (en) * | 2020-05-29 | 2020-08-28 | 山东孚德环保有限公司 | Method for treating coal gasification fine slag |
| CN112547314A (en) * | 2020-11-18 | 2021-03-26 | 云南磷化集团有限公司 | Full-quantity resource production method of siliceous and silicate refractory collophanite |
| CN113105010A (en) * | 2021-04-23 | 2021-07-13 | 海南矿业股份有限公司 | Method for cleaning sludge in mine sedimentation tank |
| CN113649398A (en) * | 2021-08-16 | 2021-11-16 | 中南大学 | A harmless disposal system for mine tailings |
| CN114515405A (en) * | 2020-11-18 | 2022-05-20 | 中蓝连海设计研究院有限公司 | Method for reducing total phosphorus in phosphorus tailings |
| CN114918219A (en) * | 2022-04-07 | 2022-08-19 | 云南磷化集团有限公司 | Phosphorus tailings harmless treatment method |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480948A (en) * | 2014-12-11 | 2015-04-01 | 广西华银铝业有限公司 | Tailing heap discharge method combined with dry heaping and wet discharging |
| CN104922943A (en) * | 2015-04-27 | 2015-09-23 | 云南磷化集团有限公司 | Collophanite direct flotation fine-grade tailing settlement concentration method |
| CN105032601A (en) * | 2015-06-29 | 2015-11-11 | 江西省莲花山矿产实业有限公司 | Tailing disposal method |
| CN105127010B (en) * | 2015-09-30 | 2018-01-09 | 河南东大矿业股份有限公司 | Bauxite forward flotation refuse filter press feeding combines the unit |
| CN105127010A (en) * | 2015-09-30 | 2015-12-09 | 河南东大矿业股份有限公司 | Charging combination device of monohydrallite direct flotation tallings filter press |
| CN105396685A (en) * | 2015-12-21 | 2016-03-16 | 云南磷化集团有限公司 | Dry discharge technology for phosphate tailings generated during mineral separation |
| CN105903556A (en) * | 2016-04-14 | 2016-08-31 | 山东鑫海矿业技术装备股份有限公司 | Energy-efficient tailings dry-type deslagging technique |
| CN105879445B (en) * | 2016-05-31 | 2018-01-02 | 中国矿业大学(北京) | Two sections of filtering techniques of black water |
| CN105879445A (en) * | 2016-05-31 | 2016-08-24 | 中国矿业大学(北京) | Slime water two-stage filtering technology |
| CN109647617B (en) * | 2018-12-28 | 2021-09-07 | 江西省宜丰万国矿业有限公司 | Method for extracting iron and reducing sulfur from nonferrous metal underground mine tailings |
| CN109647617A (en) * | 2018-12-28 | 2019-04-19 | 江西省宜丰万国矿业有限公司 | A kind of method that non-ferrous metal underground mine tailing proposes iron sulfur reduction |
| CN111589221A (en) * | 2020-05-29 | 2020-08-28 | 山东孚德环保有限公司 | Method for treating coal gasification fine slag |
| CN114515405A (en) * | 2020-11-18 | 2022-05-20 | 中蓝连海设计研究院有限公司 | Method for reducing total phosphorus in phosphorus tailings |
| CN112547314A (en) * | 2020-11-18 | 2021-03-26 | 云南磷化集团有限公司 | Full-quantity resource production method of siliceous and silicate refractory collophanite |
| CN114515405B (en) * | 2020-11-18 | 2024-09-10 | 中蓝连海设计研究院有限公司 | Method for reducing total phosphorus in phosphate tailings |
| CN113105010A (en) * | 2021-04-23 | 2021-07-13 | 海南矿业股份有限公司 | Method for cleaning sludge in mine sedimentation tank |
| CN113649398A (en) * | 2021-08-16 | 2021-11-16 | 中南大学 | A harmless disposal system for mine tailings |
| CN114918219A (en) * | 2022-04-07 | 2022-08-19 | 云南磷化集团有限公司 | Phosphorus tailings harmless treatment method |
| CN114918219B (en) * | 2022-04-07 | 2024-05-14 | 云南磷化集团有限公司 | Harmless treatment method of phosphate tailings |
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