CN107790477A - A kind of ferrous metal tailings comprehensive administering method - Google Patents
A kind of ferrous metal tailings comprehensive administering method Download PDFInfo
- Publication number
- CN107790477A CN107790477A CN201610800336.5A CN201610800336A CN107790477A CN 107790477 A CN107790477 A CN 107790477A CN 201610800336 A CN201610800336 A CN 201610800336A CN 107790477 A CN107790477 A CN 107790477A
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- China
- Prior art keywords
- mine tailing
- equipment
- output
- concentrate
- fine fraction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 title claims abstract description 20
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000012141 concentrate Substances 0.000 claims abstract description 49
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 48
- 239000011707 mineral Substances 0.000 claims abstract description 48
- 230000018044 dehydration Effects 0.000 claims abstract description 25
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000011049 filling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000010802 sludge Substances 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 3
- 238000011282 treatment Methods 0.000 abstract description 3
- 239000004035 construction material Substances 0.000 abstract description 2
- 238000007667 floating Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 235000015096 spirit Nutrition 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of ferrous metal tailings comprehensive administering method, comprise the following steps:(1) mine tailing sizes mixing, removes impurity removing, (2) spoil reclaming roughing, (3) coarse concentrate regrinding, (4) the selected output concentrate product of rough concentrate, (5) secondary mine tailing coarse fraction dehydration, (6) secondary mine tailing fine fraction is dehydrated cake processed, and (7) are dehydrated cake processed.The present invention relates to two technical process:(1) nonmetallic old mine tailing, newborn mine tailing are selected again (floating, gravity treatment etc.), choosing is received and target minreal and other valuable mineral concentrate products are remained in output mine tailing, improves the comprehensive utilization ratio of resource;(2) comprehensive regulation is carried out to secondary mine tailing, coarse fraction is converted into construction material or as farm land transformation and architectural engineering filling material, fine fraction is dehydrated output mud cake, as farm land transformation or architectural engineering filling material, the occupancy of harm and land resource of the mill tailings to environment is inherently eliminated.
Description
Technical field
The present invention relates to mine tailing Treatment process field, more particularly to a kind of ferrous metal mine tailings comprehensive is controlled
Reason method.
Background technology
Mineral Resources in China species is various, and size mineral deposit spreads all over the country, and ferrous metal refers mainly to the iron group class such as iron, nickel, cobalt
Metallic element, purposes are related to the every aspect of the national economy people's livelihood such as industry, agricultural, Aero-Space, medicine, with the height of economy
Speed development, will further expand to the market scale demand of mineral products.But with the lasting of mineral resources, large-scale development profit
With the mill tailings heaped measure of output necessarily increasingly increases therewith, the intrinsic secondary geologic hidden peril of mill tailings, particle airborne dust danger
Evil, free metal pollution, farm land take the problems such as destroying and will also become increasingly conspicuous.
Therefore, how to solve exploitation of mineral resources with mill tailings harm is asking for those skilled in the art's urgent need to resolve
Topic.
The content of the invention
In view of this, the invention provides a kind of ferrous metal mine tailings comprehensive administering method, solving in mine tailing has
The problems such as selecting recovery, potential safety hazard, pollution environment, land occupation again of valency mineral, while " the zero of comprehensive regulation process can be realized
Discharge ", utterly destroys and has eradicated harm and the hidden danger of mill tailings, high pollution type industry is changed into environment-friendly type industry.
In order to achieve the above object, the present invention adopts the following technical scheme that:
A kind of ferrous metal tailings comprehensive administering method, specifically comprises the following steps:
(1) size mixing debris:Old, the newborn mine tailing that automobile or pipeline are shipped, are sized mixing using newborn, outmoded mine tailing
Equipment is sized mixing, then is removed excessive moisture in ore pulp by dehydration, impurity removing equipment, removed debris in ore pulp, the wood of output
The debris such as cut to store up with selecting, the overflow pulp of overflow output enters secondary mine tailing fine fraction bleed equipment;
(2) roughing is selected again:Selected again using underflow of the spoil reclaming roughing separation equipment to dehydration, impurity removing equipment, output
Residual target minreal, other valuable mineral rough concentrates and secondary mine tailing ore pulp, the valuable mineral rough concentrate of output enter rough concentrate
Regrinding equipment, secondary mine tailing ore pulp input secondary mine tailing fine fraction bleed equipment;
(3) coarse concentrate regrinding:Using the ore grindings such as ball mill, grader, coarse concentrate regrinding equipment to thick from spoil reclaming
The valuable mineral rough concentrate of optional equipment is regrinded, to improve the liberation degree of minerals of valuable mineral rough concentrate;
(4) rough concentrate is selected:Using rough concentrate picking equipment to ore deposit grind after ore deposit carry out it is selected, output target minreal, other
Valuable mineral concentrate product and selected underflow;Valuable mineral concentrate product inventory is sold, and selected underflow flows to spoil reclaming roughing
Equipment, form closed circuit ore dressing loop;
(5) secondary mine tailing coarse fraction dehydration:Using the secondary mine tailing coarse fraction dehydration equipment such as spiral, vibrations to secondary mine tailing
Coarse fraction is dehydrated, output building sand and fine fraction underflow;
(6) secondary mine tailing fine fraction is dehydrated cake processed:Using the secondary mine tailing fine fraction bleed equipment such as the dense level of rake, output
Fine fraction underflow simultaneously separates out clear water, and secondary mine tailing fine fraction dehydration equipment is transported in fine fraction underflow, and clear water returns to water system again
With;
(7) it is dehydrated cake processed:Using secondary mine tailing fine fraction dehydration equipment to secondary mine tailing fine fraction bleed equipment output
Argillization, overground particulate grade particles are dehydrated, cake processed, output dehydrated sludge cake and clear water, and dehydrated sludge cake stores up standby, clear water with selecting
Water system is returned to use again.
Preferably, in a kind of above-mentioned ferrous metal mine tailings comprehensive administering method, the dehydrated sludge cake of step (7) output
Both architectural engineering filling material had been can be used as, it is also possible to make farmland improvement.
Preferably, in a kind of above-mentioned ferrous metal mine tailings comprehensive administering method, step (1) is provided with water supply system
System.
Preferably, in a kind of above-mentioned ferrous metal mine tailings comprehensive administering method, step (4) can select synthetical recovery again
Target minreal and valuable mineral concentrate product in mine tailing.
Preferably, in a kind of above-mentioned ferrous metal mine tailings comprehensive administering method, the valuable mineral of step (4) output
Concentrate product is mainly iron-bearing mineral concentrate product.
Understand that compared with prior art, the present disclosure provides a kind of ferrous metal ore via above-mentioned technical scheme
Mountain tailings comprehensive administering method, on the one hand newborn and outmoded mine tailing is sized mixing by mixing cirtern successively, dense dehydration struggles against to mine tailing ore deposit
Slurry dehydration, and impurity is isolated, output recovers the mine tailing ore pulp and fine fraction overflow pulp of concentration;Mine tailing ore pulp, which passes through, to float, again
The technological means such as choosing are selected roughing again, and the target minreal and valuable mineral in ore pulp are received in choosing, output valuable mineral rough concentrate with
Secondary mine tailing ore pulp;Valuable mineral rough concentrate is successively by grinding attachment fine grinding, graders such as ball mills, and control the grain of ore pulp
Degree, then sequentially selected using technological means such as floating, gravity treatments, output valuable mineral concentrate and cleaner tailings ore pulp.Rough concentrate is through again
Grind, be selected, output target minreal, valuable mineral concentrate product sell to market;Cleaner tailings returns to mine tailing roughing workshop section and selected again, shape
Into closed circuit ore dressing loop, ensure the recovery rate in ore-dressing of system.Secondary mine tailing ore pulp first passes through coarse fraction particulate matter dehydration output and built
Build and use sand product, sell to construction market.Fine fraction is through precipitation dehydration output dehydration cake and clear water;Clear water returns to water system again
Utilize;Dehydrated sludge cake both can be used as architectural engineering filling material, it is also possible to makees farmland improvement, is caused by mine tailing governance process
" secondary mine tailing " provides outlet, turns waste into wealth, and fully, reasonably make use of secondary resource of tailings.
The present invention for comprehensive utilization resource, eliminate safe hidden trouble, eliminate environmental hazard, open up " secondary mine tailing outlet " etc.
Aspect is respectively provided with particularly significant meaning, has a good application prospect.
Coarse fraction particulate matter refers to 0.25-5mm tailings particles.
Mud cake refers to the pie that overground below -0.25mm, argillization thing is formed after dehydration in ore pulp.
Secondary mine tailing refers to by selecting mine tailing caused by processing again.
Fine valuable mineral rough concentrate refers to the product obtained after valuable mineral rough concentrate fine grinding.
Target minreal and residual refer to that mineral are received in the selected choosing of the ore dressing plant production system, such as sulphur, fluorite, barite,
The target minreal amount retained after being selected in mine tailing remains as target minreal, i.e. tailings grade.
Valuable mineral refer to association be not put into target minreal, choosing receive, have market value mineral, as iron, cobalt,
The ferrous metal such as nickel.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 accompanying drawings are process chart of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of ferrous metal tailings comprehensive administering method, not only solves mill tailings pollution
The problem of environment, land occupation, and the available market product of output, including valuable mineral spirits ore deposit, construction material and de-
Pat of cement, while the clear water of output returns to water system cycling and reutilization, the comprehensive utilization ratio for the mine tailing that economizes on resources, improves.
It is including the following step the invention provides a kind of ferrous metal tailings comprehensive administering method to refer to relevant drawings
Suddenly:
(1) size mixing debris:Old, the newborn mine tailing that automobile or pipeline are shipped, are sized mixing using newborn, outmoded mine tailing
Equipment 1 is sized mixing, then is removed excessive moisture in ore pulp by dehydration, impurity removing equipment 2, removed debris in ore pulp, output
Wood the debris 9 such as is cut and stored up with selecting, and the overflow pulp 12 of overflow output enters secondary mine tailing fine fraction bleed equipment 14;
(2) roughing is selected again:Selected, produced again using underflow of the spoil reclaming roughing separation equipment 3 to dehydration, impurity removing equipment 2
Go out to remain target minreal, other valuable mineral rough concentrates 4 and secondary mine tailing ore pulp 11, the valuable mineral rough concentrate 4 of output enters
Coarse concentrate regrinding equipment 5, secondary mine tailing ore pulp 11 input secondary mine tailing fine fraction bleed equipment 14;
(3) coarse concentrate regrinding:Using the ore grindings such as ball mill, grader, coarse concentrate regrinding equipment 5 to thick from spoil reclaming
The valuable mineral rough concentrate 4 of optional equipment 3 is regrinded, to improve the liberation degree of minerals of valuable mineral rough concentrate 4;
(4) rough concentrate is selected:Using rough concentrate picking equipment 8 to ore deposit grind after ore deposit 7 carry out it is selected, output target minreal, its
His valuable mineral concentrate product 10 and selected underflow 6;The inventory sale of valuable mineral concentrate product 10, selected underflow 6 flow to mine tailing
Roughing separation equipment 3 is selected again, forms closed circuit ore dressing loop;
(5) secondary mine tailing coarse fraction dehydration:Using the secondary mine tailing coarse fraction dehydration equipment 13 such as spiral, vibrations to secondary tail
Ore deposit coarse fraction is dehydrated, output building sand 19 and fine fraction underflow 16;
(6) secondary mine tailing fine fraction is dehydrated cake processed:Using the secondary mine tailing fine fraction bleed equipment 14 such as the dense level of rake, production
Go out fine fraction underflow 16 and separate out clear water 17, secondary mine tailing fine fraction dehydration equipment 15 is transported in fine fraction underflow 16, and clear water 17 returns
Water system is returned to use again;
(7) it is dehydrated cake processed:Secondary mine tailing fine fraction bleed equipment 14 is produced using secondary mine tailing fine fraction dehydration equipment 15
The argillization that goes out, overground particulate grade particles are dehydrated, cake processed, output dehydrated sludge cake 18 and clear water 17, and dehydrated sludge cake 18 selects ground heap
Deposit it is standby, clear water 17 return water system use again.
In order to further optimize above-mentioned technical proposal, the dehydrated sludge cake 18 of step (7) output both can be used as architectural engineering and fill out
Build material, it is also possible to make farmland improvement.
In order to further optimize above-mentioned technical proposal, step (1) is provided with water system.
In order to further optimize above-mentioned technical proposal, step (4) can select in synthetical recovery mine tailing target minreal and valuable again
Mineral spirits mineral products 10.
In order to further optimize above-mentioned technical proposal, the valuable mineral concentrate product 10 of step (4) output is mainly iron content
Mineral spirits mineral products.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (4)
1. a kind of ferrous metal tailings comprehensive administering method, it is characterised in that comprise the following steps:
(1) size mixing debris:Old, the newborn mine tailing that automobile or pipeline are shipped, using newborn, outmoded mine tailing size mixing equipment
(1) sized mixing, then excessive moisture in ore pulp is removed by dehydration, impurity removing equipment (2), removes debris in ore pulp, output
Wood the debris (9) such as is cut and stored up with selecting, and the overflow pulp (12) of overflow output enters secondary mine tailing fine fraction bleed equipment (14);
(2) roughing is selected again:Selected, produced again using underflow of the spoil reclaming roughing separation equipment (3) to dehydration, impurity removing equipment (2)
Go out to remain target minreal, other valuable mineral rough concentrates (4) and secondary mine tailing ore pulp (11), the valuable mineral rough concentrate of output
(4) coarse concentrate regrinding equipment (5) is entered, secondary mine tailing ore pulp (11) inputs secondary mine tailing fine fraction bleed equipment (14);
(3) coarse concentrate regrinding:Using the ore grindings such as ball mill, grader, coarse concentrate regrinding equipment (5) to from spoil reclaming roughing
The valuable mineral rough concentrate (4) of equipment (3) is regrinded, to improve the liberation degree of minerals of valuable mineral rough concentrate (4);
(4) rough concentrate is selected:Using rough concentrate picking equipment (8) to ore deposit grind after ore deposit (7) carry out it is selected, output target minreal, its
His valuable mineral concentrate product (10) and selected underflow (6);Valuable mineral concentrate product (10) inventory sale, selected underflow (6)
Spoil reclaming roughing separation equipment (3) is flowed to, forms closed circuit ore dressing loop;
(5) secondary mine tailing coarse fraction dehydration:Using the secondary mine tailing coarse fraction dehydration equipment (13) such as spiral, vibrations to secondary mine tailing
Coarse fraction is dehydrated, output building sand (19) and fine fraction underflow (16);
(6) secondary mine tailing fine fraction is dehydrated cake processed:Using the secondary mine tailing fine fraction bleed equipment (14) such as the dense level of rake, output
Fine fraction underflow (16) simultaneously separates out clear water (17), and secondary mine tailing fine fraction dehydration equipment (15) is transported in fine fraction underflow (16), clearly
Water (17) returns to water system and used again;
(7) it is dehydrated cake processed:Secondary mine tailing fine fraction bleed equipment (14) is produced using secondary mine tailing fine fraction dehydration equipment (15)
The argillization that goes out, overground particulate grade particles are dehydrated, cake processed, output dehydrated sludge cake (18) and clear water (17), dehydrated sludge cake (18)
Store up with selecting it is standby, clear water (17) return water system use again.
A kind of 2. ferrous metal mine tailings comprehensive administering method according to claim 1, it is characterised in that step (7)
The dehydrated sludge cake (18) of output both can be used as architectural engineering filling material, it is also possible to make farmland improvement.
A kind of 3. ferrous metal mine tailings comprehensive administering method according to claim 1, it is characterised in that step (1)
It is provided with water system.
A kind of 4. ferrous metal mine tailings comprehensive administering method according to claim 1, it is characterised in that step (4)
Target minreal and valuable mineral concentrate product (10) in synthetical recovery mine tailing can be selected again.
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CN201610800336.5A CN107790477A (en) | 2016-08-31 | 2016-08-31 | A kind of ferrous metal tailings comprehensive administering method |
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CN201610800336.5A CN107790477A (en) | 2016-08-31 | 2016-08-31 | A kind of ferrous metal tailings comprehensive administering method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113322903A (en) * | 2021-06-08 | 2021-08-31 | 吉林省华冶环境治理有限公司 | Integrated tailing dam building machine |
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CN1814354A (en) * | 2005-02-02 | 2006-08-09 | 上海维莎宝矿产设备有限公司 | Re-dressing utilizing method for non-ferrous metal tailings |
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CN101905099A (en) * | 2009-06-04 | 2010-12-08 | 唐山市滦河鑫丰矿业有限公司 | Tailing treatment method and system |
CN103301679A (en) * | 2013-06-26 | 2013-09-18 | 南京梅山冶金发展有限公司 | Tailing dewatering method |
CN104741212A (en) * | 2015-04-07 | 2015-07-01 | 马钢(集团)控股有限公司 | Full-scale comprehensive tailing utilization method |
-
2016
- 2016-08-31 CN CN201610800336.5A patent/CN107790477A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996041681A2 (en) * | 1995-06-09 | 1996-12-27 | Walter Felber | Process for splitting residues to obtain secondary raw materials |
CN1814354A (en) * | 2005-02-02 | 2006-08-09 | 上海维莎宝矿产设备有限公司 | Re-dressing utilizing method for non-ferrous metal tailings |
CN101579652A (en) * | 2009-05-15 | 2009-11-18 | 白银天翔化工建材有限责任公司 | Method for selecting sulfur from tailings discarded by mineral separation |
CN101905099A (en) * | 2009-06-04 | 2010-12-08 | 唐山市滦河鑫丰矿业有限公司 | Tailing treatment method and system |
CN103301679A (en) * | 2013-06-26 | 2013-09-18 | 南京梅山冶金发展有限公司 | Tailing dewatering method |
CN104741212A (en) * | 2015-04-07 | 2015-07-01 | 马钢(集团)控股有限公司 | Full-scale comprehensive tailing utilization method |
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CN113322903A (en) * | 2021-06-08 | 2021-08-31 | 吉林省华冶环境治理有限公司 | Integrated tailing dam building machine |
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Effective date of registration: 20180724 Address after: 610000 35, two section of Renmin Road, Qingyang District, Chengdu, Sichuan Applicant after: Qiao Jingmei Address before: 100000 03-628 8, Zhongguancun Avenue, Haidian District, Beijing, 8 Applicant before: Beijing new Hong Wah Environmental Protection Technology Co., Ltd. |
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Application publication date: 20180313 |