CN106088107B - A kind of tailings impoundment is in the method in Caving Method with Large Space production mine surface subsidence hole - Google Patents
A kind of tailings impoundment is in the method in Caving Method with Large Space production mine surface subsidence hole Download PDFInfo
- Publication number
- CN106088107B CN106088107B CN201610440913.4A CN201610440913A CN106088107B CN 106088107 B CN106088107 B CN 106088107B CN 201610440913 A CN201610440913 A CN 201610440913A CN 106088107 B CN106088107 B CN 106088107B
- Authority
- CN
- China
- Prior art keywords
- mine tailing
- tailings
- tailing
- mine
- solidification
- Prior art date
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000007711 solidification Methods 0.000 claims abstract description 62
- 230000008023 solidification Effects 0.000 claims abstract description 56
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 230000004927 fusion Effects 0.000 claims abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 8
- 239000011707 mineral Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000002562 thickening agent Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000013139 quantization Methods 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims description 32
- 239000011248 coating agent Substances 0.000 claims description 31
- 238000004458 analytical method Methods 0.000 claims description 4
- 230000008719 thickening Effects 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 8
- 238000005065 mining Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Forestry; Mining
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Ceramic Engineering (AREA)
- Evolutionary Computation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Business, Economics & Management (AREA)
- Animal Husbandry (AREA)
- Organic Chemistry (AREA)
- Human Resources & Organizations (AREA)
- Marketing (AREA)
- Primary Health Care (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Economics (AREA)
- General Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Agronomy & Crop Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of tailings impoundment in the method in Caving Method with Large Space production mine surface subsidence hole, using following technique, step：The mine tailing produced to ore dressing plant is detected, analyzed, including mine tailing granularity, tailings concentration, mineral composition, mineral content；Mine tailing caused by ore dressing plant is fed to the high-concentration tailings slurry for being concentrated into that concentration expressed in percentage by weight is 62% ~ 72% in deep cone thickener；High-concentration tailings slurry after concentration is imported in mine tailing mixer, tailing solidifying agent is added and stirs；Tailings transportation, heap row.The direct heap of mine tailing is stored in surface subsidence hole by the present invention, is reduced the expense for building Tailings Dam, is reduced floor space, capital expenditure is few, maintenance is simple, integrated cost is low；Tailing treatment technology flow is simple, feasible；Propose the quantization method of heap row's solidification mine tailing Rational Thickness of multifactor fusion.
Description
Technical field
The present invention relates to a kind of method that Collapse Pit heap arranges solidification mine tailing, enters end of line especially suitable for Caving Method with Large Space production mine
The dry type heap row of ore deposit.
Background technology
At present, domestic most mine tailings are still discharged using wet type, that is, build Tailings Dam, and tail is stored using Tailings Dam
Ore deposit.Counted according to 2012, there is Tailings Dam more than 12000 in China, and tailings impoundment total amount has surpassed more than 100 hundred million tons, increases tail newly every year
More than 10 hundred million tons of ore deposit, wherein big multiple rows of to Tailings Dam stockpiling.Although this treating method is convenient, a variety of drawbacks are brought simultaneously.
First, Tailings Dam needs the place of large area, and forms huge mine tailing Hydraulic Transportation System, its power, equipment with pump, pipeline
Material consumption is high, causes Tailings transportation and processing cost too high；Secondly as land resource is more and more nervous, the expense of expropriation of land
More and more higher, the infrastructure expense of Tailings Dam is caused to account for that the whole ratio for picking up establishment expense is increasing, and Tailings Dam
Regular maintenance and operation also need to consume substantial amounts of fund.In addition, Tailings Dam has very big potential safety hazard, passed through in Tailings Dam reservoir area
A large amount of primary waters and flood are often stored, cause to form the outstanding lake of Tailings Dam above mine tailing.
On the other hand, many subway mines in China are dug up mine using sublevel caving method without sill pillar, are producing a large amount of ores
Cause that earth's surface is different degrees of to be collapsed simultaneously, Rock Masses Fractures in subsidence area, broken, some cracks even penetrate earth's surface.Collapse
The presence in hole not only damages to surface environment, and in rainy season because rainwater catchment causes surface loess layer liquefaction shape
Into yellow mud, by crack, cavity in subsidence area, seepage easily induces the geological disasters such as downhole debris flow to yellow mud downwards, to underground mining
Ore deposit threatens safely.The surface collapse area that underground mining is formed, has not only damaged substantial amounts of land resource, and exist huge
Potential safety hazard, if these places can bank up place as mine tailing, and banked up safely in the form of, can not only solve tailing heap
The problem of field, and potential safety hazard existing for openpit and subsidence area and the environmental issue of wet type tailings impoundment can be eliminated,
With huge Social benefit and economic benefit.
Banked up after Tailing thickening by the use of surface mining hole and subsidence area etc. as storeyard, save large amount of land resources
With the substantial contribution needed for newly-built Tailings Dam, the high potential energy dangerous matter sources of high dam mine tailing place formation can be eliminated, greatly reduce tail
The environmental pollution of ore deposit disposal, also easily cultivated and utilized again moreover, mine is adopted after the discarded places such as hole pile with mine tailing, can be ore deposit
Mountain enterprise and society bring huge economic benefit and social benefit.
《Chinese Mining Industry》" the tails dry stockpiling state-of-the-art published in the supplementary issue of volume 23 that in August, 2014 is published
With direction " in a text, " subsidence area tailings dry type discharge technology technology " is described, the technological process of the technology is：Tailings is first
Concentrated through high pressure deep wimble thickener, reach weight concentration for 50% or so；Then horizontal range is pumped to about using water isolation pump
2600m, the discrepancy in elevation about 200m evaporation plant；It is dehydrated again through ceramic filter to aqueous 15% tailing cake, finally through belt
Transporter is delivered to subsidence area stockpiling, is had bad luck in subsidence area using scraper.But surface subsidence hole solidification mine tailing is not known in the technology
Stockpiling thickness problem during stockpiling, and concentrate, filter plant investment is big, high energy consumption, lotion prepares that cost is high, efficiency is low,
The problems such as bad adaptability of area of heavy rainfull, it can only be investigative test application, be unsuitable for large-scale promotion application.
《Mining industry is studied with opening》" shadow of the rainwater to deep mining during Collapse Pit piling tails delivered in July, 2015
Sound research " one the article pointed out：The harm brought and tailing heap are cheated in order to solve surface subsidence in Jinshandian Iron Mine Yu Hua temples mining area
The problem of depositing, determine to cheat progress tailing dry-heaping discharge using surface subsidence, and carried out piling tails property and indoor similar mould
Intend experiment research, but do not provide specific, feasible tailing dry arrange in Collapse Pit tailing treatment technology flow and technology ginseng
Number, it is difficult to implement in produce reality.
The content of the invention
The purpose of the present invention, aiming above mentioned problem existing for prior art, and provide a kind of tailings glass cost compared with
The tailings impoundment low, technological process is simple, easy to implement is in the method in Caving Method with Large Space production mine surface subsidence hole.
To realize the above-mentioned purpose of the present invention, a kind of tailings impoundment of the present invention is in Caving Method with Large Space production mine surface subsidence hole
The technical solution that method uses is using following technique, step：
1) Tailings characteristis detection and analysis：The mine tailing produced to ore dressing plant is detected, analyzed, including mine tailing granularity, tail
Ore deposit concentration, mineral composition, mineral content；
3) Tailing thickening：Mine tailing caused by ore dressing plant is fed concentration expressed in percentage by weight is concentrated into deep cone thickener as 62%
~72% high-concentration tailings slurry；
4) curing agent adds：High-concentration tailings slurry after concentration is imported in mine tailing mixer, analyzed according to Tailings characteristis
As a result suitable tailing solidifying agent is selected to be added in mine tailing mixer, by stirring；
The main component of described tailing solidifying agent is cement, flyash, lime, and the weight ratio of three is 1.0:(3.0~
5.0):(1.5~2.5), with 1.0:(3.2~3.8):(1.8~2.2) to be optimal；Tailing solidifying agent addition is every cubic metre
40~55 kilograms of tailing solidifying agent are added in Tailings Slurry.
5) Tailings transportation, heap row：The Tailings transportation for adding tailing solidifying agent and stirring is produced into mine to Caving Method with Large Space
Heap row is carried out in surface subsidence hole, the quantization method of its heap row's solidification mine tailing Rational Thickness determines according to following technical scheme：
(1) heap row's maximum gauge determination that mine tailing does not form empty top is solidified when based on coating avalanche
When solidification tailing heap is drained into surface subsidence hole, if disposable heap row's intensity and thickness are larger, solidify mine tailing
Prop can be formed with the gap of overlying strata agglomerate body, and vertebral model is formed in Collapse Pit three-dimensional sense, in plane model
It is extended to like circular model, is formed after intensity and scale in enclosing, can not be destroyed with coating avalanche and form empty top, one
Optimum management of the aspect to coating causes difficulty, and on the other hand, crossing the tailing heap row of high intensity and thickness can increase at mine tailing
Reason expense.For this it needs to be determined that heap row's thickness of solidification mine tailing, with reference to its strength characteristics, is guaranteed and does not form the list on empty top
Secondary heap row's maximum gauge is calculated using below equation：
In formula：D1- solidification mine tailing single heap row's maximum gauge, m；
R-single heap row's solidification mine tailing extension radius, m；
σ-solidification mine tailing uniaxial compressive strength, MPa.
1. derived according to formula it is visible, it is single to ensure that the solidification mine tailing of heap row occurs without empty top thereon after coating avalanche
The maximum gauge and extension radius and solidification mine tailing intensity of secondary heap row has following variation relation：When the solidification timing of mine tailing intensity one,
Single heap is arranged maximum gauge and increased with the increase of solidification mine tailing extension radius；When the timing of extension radius one, single heap is arranged most
Big thickness reduces with the increase of solidification mine tailing uniaxial compressive strength.
(2) flowed based on coating lumpiness and solidification mine tailing fusion to prevent that it is minimum that the heap of fine tailings inflow working face from arranging
Thickness determines
The production mine in surface subsidence hole is being formed, its coating substantially meets the requirement of the safe ore removal of underground route,
Therefore coating general thickness problem need not be considered.But the rock mass of coating different size lumpiness merges with solidification mine tailing fragment to be collapsed
Route ore drawing mode and heap row's mode of surface subsidence hole solidification mine tailing can be influenceed by falling mode, if heap row's intensity and thickness mistake
Small, solidification mine tailing can refine powdering during coating Rock Mass Caving, or its lumpiness is much smaller than coating Rockmass Block,
In coating Caving process, its decrease speed is faster than coating rock mass, as ore drawing process gradually reaches working face, cause into
The dilution of road ore drawing or argillization.Therefore, considering coating lumpiness, overlying strata Caving process, solidifying mine tailing flow behavior, solid
On the basis of changing the factors such as lumpiness of the mine tailing after the destruction of similar external force, solidification mine tailing single heap row minimum thickness has been obtained really
Determine method, i.e., calculated using below equation：
In formula：D2- solidification mine tailing single heap row's minimum thickness, m；
The ratio between the b-average lumpiness of nearly working face overlying strata average lumpiness to solidification mine tailing after the destruction of similar external force,
T-solidification mine tailing slump, cm；
σ-solidification mine tailing uniaxial compressive strength, MPa；
A-coating lumpiness uniformity coefficient.
It can be seen from numerical fitting analyzes process, when the timing of solidification mine tailing intensity one, solidification mine tailing single heap row are minimum thick
Degree collapses with the ratio between the average lumpiness of nearly working face overlying strata average lumpiness to solidification mine tailing after the destruction of similar external force, solidification mine tailing
The increase of degree of falling and coating lumpiness uniformity coefficient and increase；When nearly working face overlying strata average lumpiness to solidification mine tailing through similar
The ratio between average lumpiness after external force destruction, solidification mine tailing slump and the timing of coating lumpiness uniformity coefficient one, solidify mine tailing
Single heap is arranged minimum thickness and reduced with the increase of solidification mine tailing intensity.
(3) the final determination of mine tailing single heap row's Rational Thickness is solidified
Solidification mine tailing does not form what the empty heap row's maximum gauge pushed up calculated with (2) during the coating avalanche of comprehensive (1) calculating
Based on coating lumpiness and solidification mine tailing fusion flowing to prevent fine tailings flow into the heap of working face from arranging minimum thickness, quantify true
The interval range of solidification mine tailing single heap row's thickness is made, heap row is carried out in this interval range.
A kind of tailings impoundment of the present invention is in the method in Caving Method with Large Space production mine surface subsidence hole, after above technical scheme
With good effect：
(1) the direct heap of mine tailing is stored in surface subsidence hole, reduces the expense for building Tailings Dam, reduce occupation of land face
Product, capital expenditure is few, maintenance is simple, integrated cost is low；
(2) tailing treatment technology flow is simple, feasible.
(3) present invention analyzes in terms of caved stopes process characteristic and back production safety requirements, is that Caving Method with Large Space is producing ore deposit
Mountain carries out solidifying the control method that the THICKNESS CALCULATION that mine tailing Collapse Pit heap is arranged provides quantification；
(4) present invention combines solidification mine tailing intensity, solidification Tailings Slurry flowing extension radius, solidifies mine tailing slump, be near
The ratio between the average lumpiness of working face overlying strata average lumpiness to solidification mine tailing after the destruction of similar external force and the coating lumpiness uniformity
The factors such as coefficient, solidification mine tailing and coating characteristic and its mixed regime of flow are taken into full account, it is proposed that multifactor fusion meter
Calculation method.
Brief description of the drawings
Fig. 1 is the tailings glass for the method use that a kind of tailings impoundment of the present invention produces surface subsidence hole in mine in Caving Method with Large Space
Process chart；
Fig. 2 is the solidification mine tailing for the method use that a kind of tailings impoundment of the present invention produces surface subsidence hole in mine in Caving Method with Large Space
Collapse Pit heap arranges each parameter schematic diagram；
Reference：1- solidifies mine tailing, 2- Caving Method with Large Space back production coatings, 3- ore bodies.
Embodiment
It is solid with Nanjing Meishan Metallurgy Co., Ltd.'s surface subsidence hole below in conjunction with the accompanying drawings to further describe the present invention
Change tailing heap row's embodiment, a kind of method of the tailings impoundment of the present invention in Caving Method with Large Space production mine surface subsidence hole is made more detailed
Description.
Nanjing Meishan Metallurgy Co., Ltd. is exploited using bottom-column-free sectional caving stoping method, because production history is swung
Long, has there is larger Collapse Pit in its earth's surface, so heap after tailing solidifying is drained into existing Collapse Pit.
The tail that a kind of method of the tailings impoundment of the invention as shown in Figure 1 in Caving Method with Large Space production mine surface subsidence hole uses
Ore deposit processing technological flow figure is found out, Tailings characteristis is detected and analyzed first, finds out mine tailing granularity, tailings concentration, mineral
Composition, mineral content, to select suitable thickener and tailing solidifying agent to provide condition；Mine tailing caused by ore dressing plant is fed
The high-concentration tailings that concentration expressed in percentage by weight is 62%~72% are concentrated into deep cone thickener to starch, and with 65~69% preferably, both may be used
To meet technical requirements, Tailing thickening processing cost can be reduced again, improve disposal ability；Then by the high-concentration tailings after concentration
Slurry is imported in mine tailing mixer, is selected suitable tailing solidifying agent to be added in mine tailing mixer according to Tailings characteristis analysis, is passed through
Cross and stir；Finally the Tailings transportation for adding tailing solidifying agent and stirring is collapsed to Caving Method with Large Space production mine earth's surface
Heap row is carried out in pitfall.
What a kind of method of the tailings impoundment of the invention as shown in Figure 2 in Caving Method with Large Space production mine surface subsidence hole used consolidates
Change each parameter schematic diagram of mine tailing Collapse Pit heap row and find out that the said firm is exploited using bottom-column-free sectional caving stoping method, on ore body 3
Face, which is stayed, sets Caving Method with Large Space back production coating 2, the dry type discharge solidification mine tailing 1 in the Collapse Pit above Caving Method with Large Space back production coating 2.
A kind of tailings impoundment of the present invention is in the method in Caving Method with Large Space production mine surface subsidence hole, in Nanjing Mei Shan Metallurgical Industry Developments
Co., Ltd's underground mine exploits dry type discharge solidification mine tailing 1 in the Collapse Pit to be formed using bottom-column-free sectional caving stoping method,
Its rational heap row thickness determines that method is as follows：
(1) solidify mine tailing when based on coating avalanche and do not form heap row's maximum gauge on empty top using below equation determination：
In formula：D1- solidification mine tailing single heap row's maximum gauge, m；
R-single heap row's solidification mine tailing extension radius, is 10m；
σ-solidification mine tailing uniaxial compressive strength, it is 0.5MPa.
The solidification mine tailing single heap row's maximum gauge value calculated accordingly is 8.01m.
(2) flowed based on coating lumpiness and solidification mine tailing fusion to prevent that it is minimum that the heap of fine tailings inflow working face from arranging
Thickness is determined using below equation：
In formula：D2- solidification mine tailing single heap row's minimum thickness, m；
The ratio between the b-average lumpiness of nearly working face overlying strata average lumpiness to solidification mine tailing after the destruction of similar external force, is 6；
T-solidification mine tailing slump, it is 25cm；
σ-solidification mine tailing uniaxial compressive strength, it is 0.5MPa.
A-coating lumpiness uniformity coefficient, it is 100.
The solidification mine tailing single heap row's minimum thickness calculated accordingly is 4.59m.
(3) the final determination of mine tailing single heap row's Rational Thickness is solidified
Solidification mine tailing does not form heap row's maximum gauge on empty top and based on coating lumpiness and admittedly during mixed mulch layer avalanche
Change mine tailing fusion flowing to prevent fine tailings flow into heap row's minimum thickness of working face from determining that Nanjing Mei Shan Metallurgical Industry Developments are limited
The interval range of company's solidification mine tailing single heap row's thickness is 4.59m~8.01m.
Claims (3)
1. a kind of tailings impoundment is in the method in Caving Method with Large Space production mine surface subsidence hole, it is characterised in that using following technique, step
Suddenly：
1）Tailings characteristis detects and analysis：The mine tailing produced to ore dressing plant is detected, analyzed, including mine tailing granularity, mine tailing are dense
Degree, mineral composition, mineral content；
3）Tailing thickening：Mine tailing caused by ore dressing plant is fed concentration expressed in percentage by weight is concentrated into deep cone thickener as 62% ~ 72%
High-concentration tailings slurry；
4）Curing agent adds：High-concentration tailings slurry after concentration is imported in mine tailing mixer, according to Tailings characteristis analysis result
Suitable tailing solidifying agent is selected to be added in mine tailing mixer, by stirring；
5）Tailings transportation, heap row：The Tailings transportation for adding tailing solidifying agent and stirring is produced into mine earth's surface to Caving Method with Large Space
Heap row is carried out in Collapse Pit, the quantization method of its heap row's solidification mine tailing Rational Thickness determines according to following technical scheme：
（1）Solidify mine tailing during based on coating avalanche and do not form heap row's maximum gauge on empty top using below equation determination：
①
In formula：D 1- solidification mine tailing single heap row's maximum gauge, m,
R- single heap row's solidification mine tailing extension radius, m,
σ- solidification mine tailing uniaxial compressive strength, MPa；
（2）Flowed based on coating lumpiness and solidification mine tailing fusion to prevent fine tailings flow into the heap of working face from arranging minimum thickness
Determined using below equation：
②
In formula：D 2- solidification mine tailing single heap row's minimum thickness, m,
bThe ratio between the average lumpiness of-nearly working face overlying strata average lumpiness with solidification mine tailing after similar external force is destroyed,
T- solidification mine tailing slump, cm,
σ- solidification mine tailing uniaxial compressive strength, MPa,
a- coating lumpiness uniformity coefficient；
（3）Solidify the final determination of mine tailing single heap row's Rational Thickness
It is comprehensive（1）Solidify during the coating avalanche of calculating mine tailing do not formed empty top heap row's maximum gauge and（2）Calculate based on
Coating lumpiness and solidification mine tailing fusion flowing quantify to determine to prevent fine tailings flow into the heap of working face from arranging minimum thickness
Solidify the interval range of mine tailing single heap row's thickness, heap row is carried out in this interval range.
2. a kind of tailings impoundment as claimed in claim 1 exists in the method in Caving Method with Large Space production mine surface subsidence hole, its feature
In：The main component of described tailing solidifying agent is cement, flyash, lime, and the weight ratio of three is 1.0:（3.0~5.0）:
（1.5~2.5）, the above-mentioned 4th）Tailing solidifying agent addition in step is 40 ~ 55 kilograms of mine tailings of addition in every cubic metre of Tailings Slurry
Curing agent.
3. a kind of tailings impoundment as claimed in claim 2 exists in the method in Caving Method with Large Space production mine surface subsidence hole, its feature
In：The main component of described tailing solidifying agent is cement, flyash, lime, and the weight ratio of three is 1.0:（3.2~3.8）:
（1.8~2.2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440913.4A CN106088107B (en) | 2016-06-20 | 2016-06-20 | A kind of tailings impoundment is in the method in Caving Method with Large Space production mine surface subsidence hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440913.4A CN106088107B (en) | 2016-06-20 | 2016-06-20 | A kind of tailings impoundment is in the method in Caving Method with Large Space production mine surface subsidence hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106088107A CN106088107A (en) | 2016-11-09 |
| CN106088107B true CN106088107B (en) | 2018-01-05 |
Family
ID=57236131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610440913.4A Active CN106088107B (en) | 2016-06-20 | 2016-06-20 | A kind of tailings impoundment is in the method in Caving Method with Large Space production mine surface subsidence hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106088107B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733137B (en) * | 2017-01-13 | 2019-05-21 | 吉林吉恩镍业股份有限公司 | A kind of open-air pit Tailings Dam production technology |
| CN110566207A (en) * | 2019-09-10 | 2019-12-13 | 东北大学 | covering layer full-tailings piling method for open-air to underground non-bottom-pillar sublevel caving method |
| CN114100844B (en) * | 2021-11-12 | 2024-04-30 | 河南金源黄金矿业有限责任公司 | Process for comprehensively recovering and concentrating tailings |
| CN114033483B (en) * | 2021-11-24 | 2023-07-18 | 安徽马钢矿业资源集团姑山矿业有限公司 | Construction method suitable for collapse pit tailing filling process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0339521A (en) * | 1989-07-04 | 1991-02-20 | Koichi Uemura | Open shield method |
| CN101929160B (en) * | 2009-06-24 | 2012-05-23 | 鞍钢集团矿业公司 | Method for building impermeable tailings dams with high scattered piles by waste rocks |
| CN101974909B (en) * | 2010-09-17 | 2011-11-23 | 中钢集团马鞍山矿山研究院有限公司 | Method for directly building tailing ponds without filling positions above goaf |
| CN102261076A (en) * | 2011-05-13 | 2011-11-30 | 重庆大学 | Method for reinforcing tailing accumulation dam by tip scroll-type geogrid |
-
2016
- 2016-06-20 CN CN201610440913.4A patent/CN106088107B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106088107A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Deng et al. | A practice of ultra-fine tailings disposal as filling material in a gold mine | |
| Zhang et al. | Green coal mining technique integrating mining-dressing-gas draining-backfilling-mining | |
| CN102261262B (en) | High-performance foam mortar filling method for mine stope | |
| CN106088107B (en) | A kind of tailings impoundment is in the method in Caving Method with Large Space production mine surface subsidence hole | |
| CN105350498B (en) | A kind of tailings discharging method of water saving | |
| CN103967495B (en) | A kind of tailing dam dam slope mine tailing stoping method | |
| CN104405436B (en) | A kind of method improving ore body Tight filling rate | |
| CN105478225A (en) | Tailings grading and zoning high-concentration discharging system and method | |
| CN107975044B (en) | Method for backfilling collapse method mine by utilizing tailing surface collapse pits | |
| CN108979713A (en) | A kind of processing of tailing and placement method | |
| CN102531482A (en) | Filling slurry for filling mining method and preparation method for filling slurry | |
| CN105776911A (en) | Gel material for ultra-fine tailing filling and dry heaping | |
| CN101912866B (en) | Iron tailing solidifying method | |
| CN103967496A (en) | Novel method suitable for valley type tailings stacking dam slope tailings recovery | |
| CN105971605B (en) | A kind of underground mines exploration without waster method | |
| CN112901171B (en) | Green, safe and efficient mining method for super-huge metal mine | |
| CN113339058A (en) | Fluidized gangue layer adjacent surface subsequent filling system and method | |
| Wu et al. | Development and challenge of paste technology in China | |
| CN105780737B (en) | A kind of super-high rockfill dam structure and its construction method for being applicable Hydraulic and Hydro-Power Engineering | |
| CN102775105A (en) | Mine paste filling aggregate prepared from building waste materials and preparation method of mine paste filling aggregate | |
| CN112267885A (en) | Mining method for two-step strip-cutting stoping subsequent barren rock cemented filling | |
| Stupnik et al. | Magnetite quartzite mining is the future of Kryvyi Rig iron ore basin | |
| CN201763388U (en) | Foam mortar preparation device | |
| CN106097126B (en) | Caving Method with Large Space production cave-in areas hole heap row solidifies the quantization method of tailing Rational Thickness | |
| CN102808625A (en) | Method for safely and environmentally mining mineral resource and developing industrial tourism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Patentee after: MINING INDUSTRY BRANCH OF NANJING MEISHAN METALLURGY DEVELOPMENT Co.,Ltd. Patentee after: HUAWEI METAL MINERAL RESOURCE EFFICIENT RECYCLING UTILIZATION NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Address before: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH Co.,Ltd. Patentee before: MINING INDUSTRY BRANCH OF NANJING MEISHAN METALLURGY DEVELOPMENT Co.,Ltd. Patentee before: HUAWEI METAL MINERAL RESOURCE EFFICIENT RECYCLING UTILIZATION NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. |