CN106088107A - A kind of method that tailings impoundment produces surface subsidence hole, mine in Caving Method with Large Space - Google Patents
A kind of method that tailings impoundment produces surface subsidence hole, mine in Caving Method with Large Space Download PDFInfo
- Publication number
- CN106088107A CN106088107A CN201610440913.4A CN201610440913A CN106088107A CN 106088107 A CN106088107 A CN 106088107A CN 201610440913 A CN201610440913 A CN 201610440913A CN 106088107 A CN106088107 A CN 106088107A
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 67
- 238000007711 solidification Methods 0.000 claims abstract description 65
- 230000008023 solidification Effects 0.000 claims abstract description 50
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 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 5
- 230000008676 import Effects 0.000 claims abstract description 4
- 238000013139 quantization Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000008719 thickening Effects 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000007423 decrease Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000004927 fusion Effects 0.000 abstract description 2
- 238000005065 mining Methods 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011160 research 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
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012360 testing method Methods 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
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction 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
- 238000000605 extraction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000013521 mastic 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
- 238000002360 preparation method Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 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 method that tailings impoundment produces surface subsidence hole, mine in Caving Method with Large Space, use following technique, step: the mine tailing producing ore dressing plant detects, analyzes, including mine tailing granularity, tailings concentration, mineral composition, mineral content；The mine tailing that ore dressing plant produces is fed deep cone thickener is concentrated into the high-concentration tailings slurry that concentration expressed in percentage by weight is 62% ~ 72%；High-concentration tailings slurry after concentrating imports in mine tailing blender, adds tailing solidifying agent and stirs；Tailings transportation, heap are arranged.Direct for mine tailing heap is stored in surface subsidence hole by the present invention, decreases the expense building Tailings Dam, decreases floor space, and capital expenditure is few, maintenance is simple, integrated cost is low；Tailing treatment technology flow process is simple, feasible；Propose the quantization method of heap row's solidification mine tailing Rational Thickness of multifactor fusion.
Description
Technical field
The method that the present invention relates to a kind of Collapse Pit heap row's solidification mine tailing, is particularly well-suited to Caving Method with Large Space production mine and carries out tail
The dry type heap row in ore deposit.
Background technology
At present, domestic most mine tailings still use wet type to discharge, and i.e. build Tailings Dam, use Tailings Dam to store tail
Ore deposit.According to statistics in 2012, there was Tailings Dam more than 12000 in China, and tailings impoundment total amount has surpassed more than 100 hundred million tons, increases tail every year newly
More than 10 hundred million tons of ore deposit, the most multiple rows of to tailings reservoir for piling.Although this treating method is convenient, but brings all drawbacks simultaneously.
First, Tailings Dam needs large-area place, 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, cause the capital construction expense of Tailings Dam to account for the ratio of whole selecting and purchasing establishment expense increasing, and Tailings Dam
Regular maintenance and operation also need to consume substantial amounts of fund.It addition, there is the biggest potential safety hazard, warp in Tailings Dam reservoir area in Tailings Dam
Often store a large amount of primary waters and flood, cause above mine tailing, forming Tailings Dam and hang lake.
On the other hand, China's many subways mine uses sublevel caving method without sill pillar mining, at a large amount of Ore of extraction
Cause earth's surface subsiding in various degree simultaneously, Rock Masses Fractures in subsidence area, broken, the most through earth's surface, some cracks.Subside
Surface environment is not only damaged by the existence in hole, and makes surface loess layer liquefaction shape in rainy season due to rainwater catchment
Becoming yellow mud, yellow mud easily induces the geological disasters such as downhole debris flow, to underground mining by crack, cavity seepage downwards in subsidence area
Ore deposit threatens safely.The surface collapse district that underground mining is formed, has not only damaged substantial amounts of land resource, and has existed huge
Potential safety hazard, if can bank up place as mine tailing in these places, and bank up safely with form, be possible not only to solve tailing heap
The problem of field, and openpit and the potential safety hazard of subsidence area existence and the environmental issue of wet type tailings impoundment can be eliminated,
There is huge Social benefit and economic benefit.
Using utilizing surface mining hole and subsidence area etc. to bank up as storeyard after Tailing thickening, save a large amount of land resource
With the substantial contribution needed for newly-built Tailings Dam, the high potential energy dangerous matter sources that high dam Tailings Dam is formed can be eliminated, greatly reduce tail
The environmental pollution that ore deposit is disposed, and, mine is adopted after the discarded places such as hole pile with mine tailing and is the most easily cultivated and utilized again, can be ore deposit
Mountain enterprise and society bring huge economic benefit and social benefit.
" Chinese Mining Industry " in August, 2014 publish volume 23 supplementary issue in publication " tails dry stores up state-of-the-art
With direction " in a literary composition, describe " subsidence area tailings dry type discharge technology technology ", the technological process of this technology is: tailings is first
Concentrating through high pressure deep wimble thickener, reaching weight concentration is about 50%；Then water isolation pump is used to be pumped to horizontal range about
2600m, the evaporation plant of the discrepancy in elevation about 200m；Again through the tailing cake of ceramic filter dehydration to aqueous 15%, last percutaneous
Band transporter is delivered to subsidence area and stores up, and uses scraper to have bad luck in subsidence area.But this technology the clearest and the most definite earth's surface Collapse Pit solidification tail
Store up thickness problem when ore deposit is stored up, and concentrate, filter plant investment is big, energy consumption is high, mastic preparation cost is high, efficiency is low,
The problems such as the bad adaptability in area of heavy rainfull, can only be investigative test application, be unsuitable for large-scale promotion application.
" the rainwater shadow to deep mining during Collapse Pit piling tails that " mining industry research and open " is delivered in July, 2015
Ring research " one the article pointed out: harm that mining area, Jinshandian Iron Mine Yu Hua temple is brought to solve surface subsidence hole and tailing heap
The problem deposited, determines to utilize surface subsidence hole to carry out tailing dry-heaping discharge, and has carried out piling tails character mould similar to indoor
Intend the research of test, but do not provide concrete, feasible tailing dry and arrange the tailing treatment technology flow process in Collapse Pit and technology ginseng
Number, it is difficult to implement in producing reality.
Summary of the invention
The purpose of the present invention, it is simply that the problems referred to above existed for prior art, and provide a kind of tailings glass cost relatively
Low, technological process simple, easy to implement the tailings impoundment method that produces mine surface subsidence hole in Caving Method with Large Space.
For realizing the above-mentioned purpose of the present invention, a kind of tailings impoundment of the present invention produces surface subsidence hole, mine in Caving Method with Large Space
The technical solution that method uses is to use following technique, step:
1) Tailings characteristis detection with analyze: the mine tailing producing ore dressing plant detects, analyzes, dense including mine tailing granularity, mine tailing
Degree, mineral composition, mineral content；
3) Tailing thickening: being fed by the mine tailing that ore dressing plant produces and being concentrated into concentration expressed in percentage by weight in deep cone thickener is 62% ~ 72%
High-concentration tailings slurry；
4) firming agent adds: the high-concentration tailings slurry after concentrating imports in mine tailing blender, according to Tailings characteristis analysis result
Suitable tailing solidifying agent is selected to join in mine tailing blender, through stirring；
Described tailing solidifying agent be mainly composed of cement, flyash, Calx, 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) are for optimum；Tailing solidifying agent addition is in every cubic metre of Tailings Slurry
Add 40 ~ 55 kilograms of tailing solidifying agent.
5) Tailings transportation, heap row: tailing solidifying agent the Tailings transportation that stirs will be added to Caving Method with Large Space production mine
Surface subsidence carries out heap row in hole, and the quantization method of its heap row's solidification mine tailing Rational Thickness determines according to techniques below scheme:
(1) it is formed without the empty heap pushed up row's maximum gauge based on solidification mine tailing during cover layer avalanche to determine
When solidification tailing heap drains in surface subsidence hole, if disposable heap row's intensity and thickness are relatively big, then solidification mine tailing can be with
The gap overlying strata agglomerate body forms prop, and forms vertebral model in Collapse Pit three-dimensional sense, in planar range
It is extended to like circular model, after forming intensity and scale, it is impossible to destroy with cover layer avalanche and form empty top, on the one hand
Optimum management to cover layer causes difficulty, and on the other hand, the tailing heap row crossing high intensity and thickness can increase tailings glass expense
With.For this it needs to be determined that heap row's thickness of solidification mine tailing, in conjunction with its strength characteristics, it is guaranteed and is formed without the single heap on empty top
Row's maximum gauge uses below equation to calculate:
①
In formula:D 1Solidification mine tailing single heap row's maximum gauge, m；
RSingle heap row's solidification mine tailing extension radius, m；
σSolidification mine tailing uniaxial compressive strength, MPa.
1. derive according to formula visible, for ensureing that the solidification mine tailing of its upper heap row occurs without empty top, list after cover layer avalanche
The maximum gauge of secondary heap row and extension radius and solidification mine tailing intensity have following variation relation: when solidification mine tailing intensity one timing,
Single heap row's maximum gauge increases along with the increase of solidification mine tailing extension radius；When extension radius one timing, single heap is arranged
Big thickness reduces with the increase of solidification mine tailing uniaxial compressive strength.
(2) flowing is merged to prevent fine tailings from flowing into heap row's minimum of work surface based on cover layer lumpiness and solidification mine tailing
Thickness determines
In the production mine forming surface subsidence hole, its cover layer substantially meets the requirement of the safe ore removal of down-hole route, therefore
Without considering cover layer general thickness problem.But the rock mass of cover layer different size lumpiness merges avalanche side with solidification mine tailing fragment
Formula can affect heap row's mode of route ore drawing mode and surface subsidence hole solidification mine tailing, if heap row's intensity and thickness are too small, Gu
Change mine tailing and can be refined into powdery during cover layer Rock Mass Caving, or its lumpiness is much smaller than cover layer Rockmass Block, is covering
In cap rock Caving process, its decrease speed is faster than cover layer rock mass, along with ore drawing process gradually arrives work surface, causes route to put
The dilution in ore deposit or argillization.Therefore, cover layer lumpiness, overlying strata Caving process, solidification tailing stream dynamic characteristic, solidification tail are being considered
On the basis of the factors such as ore deposit lumpiness after similar external force is destroyed, obtain solidifying the determination side of mine tailing single heap row's minimum thickness
Method, i.e. uses below equation to calculate:
②
In formula:D 2Solidification mine tailing single heap row's minimum thickness, m；
bNearly work surface overlying strata average lumpiness and the ratio solidifying mine tailing average lumpiness after similar external force is destroyed,
TSolidification mine tailing slump, cm；
σSolidification mine tailing uniaxial compressive strength, MPa；
aCover layer lumpiness uniformity coefficient.
Analyzing process according to numerical fitting, when solidification mine tailing intensity one timing, solidification mine tailing single heap row is minimum thick
Spend along with nearly work surface overlying strata average lumpiness collapses to the ratio solidifying mine tailing average lumpiness after similar external force is destroyed, solidification mine tailing
Degree of falling and the increase of cover layer lumpiness uniformity coefficient and increase；When nearly work surface overlying strata average lumpiness to solidification mine tailing through similar
The ratio of the average lumpiness after external force destruction, solidification mine tailing slump and the timing of cover layer lumpiness uniformity coefficient one, solidify mine tailing
Single heap row's minimum thickness reduces with the increase of solidification mine tailing intensity.
(3) solidification mine tailing single heap arranges finally determining of Rational Thickness
Solidify during the cover layer avalanche that comprehensively (1) calculates mine tailing be formed without heap row's maximum gauge on empty top and (2) calculate based on
Cover layer lumpiness and solidification mine tailing merge the heap row's minimum thickness flowed to prevent fine tailings inflow work surface, quantify to determine
The interval range of solidification mine tailing single heap row's thickness, carries out heap row in this interval range.
The method that a kind of tailings impoundment of the present invention produces surface subsidence hole, mine in Caving Method with Large Space, after using above technical scheme
There is good effect:
(1) direct for mine tailing heap is stored in surface subsidence hole, decreases the expense building Tailings Dam, decrease floor space, base
Build small investment, maintenance is simple, integrated cost is low；
(2) tailing treatment technology flow process is simple, feasible.
(3) present invention analyzes in terms of caved stopes process characteristic and back production safety requirements, is producing ore deposit for Caving Method with Large Space
Mountain carries out solidifying the THICKNESS CALCULATION of mine tailing Collapse Pit heap row and provides the control method of quantification；
(4) present invention combines solidification mine tailing intensity, solidification Tailings Slurry flowing extension radius, solidification mine tailing slump, closely works
Face overlying strata average lumpiness and the ratio solidifying mine tailing average lumpiness after similar external force is destroyed and cover layer lumpiness uniformity coefficient
Etc. factor, solidification mine tailing and cover layer characteristic and mixed regime of flow thereof are taken into full account, it is proposed that multifactor fusion calculation side
Method.
Accompanying drawing explanation
Fig. 1 is that a kind of tailings impoundment of the present invention produces, in Caving Method with Large Space, the tailings glass that the method in surface subsidence hole, mine uses
Process chart；
Fig. 2 is that the solidification mine tailing that a kind of tailings impoundment of the present invention produces, in Caving Method with Large Space, the method employing that mine surface subsidence is cheated subsides
Hole heap arranges each parameter schematic diagram；
Reference: 1-solidifies mine tailing, 2-Caving Method with Large Space back production cover layer, 3-ore body.
Detailed description of the invention
For further describing the present invention, solid with Nanjing Meishan Metallurgy Co., Ltd.'s surface subsidence hole below in conjunction with the accompanying drawings
Changing tailing heap row's embodiment, the method that tailings impoundment a kind of to the present invention produces surface subsidence hole, mine in Caving Method with Large Space is made in more detail
Description.
Nanjing Meishan Metallurgy Co., Ltd. uses bottom-column-free sectional caving stoping method exploitation, owing to production history is swung
For a long time, its earth's surface has occurred bigger Collapse Pit, so being drained in existing Collapse Pit by heap after tailing solidifying.
A kind of tailings impoundment of the present invention as shown in Figure 1 produces, in Caving Method with Large Space, the tail that the method in surface subsidence hole, mine uses
Ore deposit processing technological flow figure is found out, first detects Tailings characteristis and analyzes, findding out mine tailing granularity, tailings concentration, mineral
Composition, mineral content, for selecting suitable thickener and tailing solidifying agent to provide condition；The mine tailing that ore dressing plant produces is fed
Deep cone thickener is concentrated into the high-concentration tailings slurry that concentration expressed in percentage by weight is 62% ~ 72%, with 65 ~ 69% preferably, both can meet
Technology requirement, can reduce again Tailing thickening processing cost, improves disposal ability；Then the high-concentration tailings slurry after concentrating imports
In mine tailing blender, suitable tailing solidifying agent is selected to join in mine tailing blender according to Tailings characteristis analysis, through fully
Stir；Finally by adding tailing solidifying agent the Tailings transportation that stirs, to produce surface subsidence hole, mine to Caving Method with Large Space interior
Carry out heap row.
A kind of tailings impoundment of the present invention as shown in Figure 2 produces consolidating of the method employing in surface subsidence hole, mine in Caving Method with Large Space
Changing the mine tailing Collapse Pit heap each parameter schematic diagram of row to find out, the said firm uses bottom-column-free sectional caving stoping method exploitation, on ore body 3
Face is stayed and is set Caving Method with Large Space back production cover layer 2, dry type discharge solidification mine tailing 3 in the Collapse Pit on Caving Method with Large Space back production cover layer 2.
The method that a kind of tailings impoundment of the present invention produces surface subsidence hole, mine in Caving Method with Large Space, at Nanjing Mei Shan Metallurgical Industry Development
Company limited's underground mine uses dry type discharge solidification mine tailing 3 in the Collapse Pit that bottom-column-free sectional caving stoping method exploitation is formed,
Its rational heap row's thickness determines that method is as follows:
(1) being formed without the empty heap pushed up row's maximum gauge based on solidification mine tailing during cover layer avalanche uses below equation to determine:
①
In formula:D 1Solidification mine tailing single heap row's maximum gauge, m；
RSingle heap row's solidification mine tailing extension radius, for 10m；
σSolidification mine tailing uniaxial compressive strength, for 0.5MPa.
The solidification mine tailing single heap row's maximum gauge value calculated accordingly is 8.01m.
(2) flowing is merged to prevent fine tailings from flowing into heap row's minimum of work surface based on cover layer lumpiness and solidification mine tailing
Thickness uses below equation to determine:
②
In formula:D 2Solidification mine tailing single heap row's minimum thickness, m；
bNearly work surface overlying strata average lumpiness and the ratio solidifying mine tailing average lumpiness after similar external force is destroyed, be 6；
TSolidification mine tailing slump, for 25cm；
σSolidification mine tailing uniaxial compressive strength, for 0.5MPa.
aCover layer lumpiness uniformity coefficient, is 100.
The solidification mine tailing single heap row's minimum thickness calculated accordingly is 4.59m.
(3) solidification mine tailing single heap arranges finally determining of Rational Thickness
Solidify mine tailing during mixed mulch layer avalanche and be formed without heap row's maximum gauge on empty top and based on cover layer lumpiness and solidification tail
Ore deposit is merged the heap row's minimum thickness to prevent fine tailings from flowing into work surface that flows and is determined, Nanjing Meishan Metallurgy Co., Ltd.
The interval range of solidification mine tailing single heap row's thickness is 4.59m～8.01m.
Claims (3)
1. the method that a tailings impoundment produces surface subsidence hole, mine in Caving Method with Large Space, it is characterised in that use following technique, step
Rapid:
1) Tailings characteristis detection with analyze: the mine tailing producing ore dressing plant detects, analyzes, dense including mine tailing granularity, mine tailing
Degree, mineral composition, mineral content；
3) Tailing thickening: being fed by the mine tailing that ore dressing plant produces and being concentrated into concentration expressed in percentage by weight in deep cone thickener is 62% ~ 72%
High-concentration tailings slurry；
4) firming agent adds: the high-concentration tailings slurry after concentrating imports in mine tailing blender, according to Tailings characteristis analysis result
Suitable tailing solidifying agent is selected to join in mine tailing blender, through stirring；
5) Tailings transportation, heap row: tailing solidifying agent the Tailings transportation that stirs will be added to Caving Method with Large Space production earth's surface, mine
Carrying out heap row in Collapse Pit, the quantization method of its heap row's solidification mine tailing Rational Thickness determines according to techniques below scheme:
(1) being formed without the empty heap pushed up row's maximum gauge based on solidification mine tailing during cover layer avalanche uses below equation to determine:
①
In formula:D 1Solidification mine tailing single heap row's maximum gauge, m,
RSingle heap row's solidification mine tailing extension radius, m,
σSolidification mine tailing uniaxial compressive strength, MPa；
(2) flowing is merged to prevent fine tailings from flowing into heap row's minimum thickness of work surface based on cover layer lumpiness and solidification mine tailing
Employing below equation determines:
②
In formula:D 2Solidification mine tailing single heap row's minimum thickness, m,
bNearly work surface overlying strata average lumpiness and the ratio solidifying mine tailing average lumpiness after similar external force is destroyed,
TSolidification mine tailing slump, cm,
σSolidification mine tailing uniaxial compressive strength, MPa,
aCover layer lumpiness uniformity coefficient；
(3) solidification mine tailing single heap arranges finally determining of Rational Thickness
Solidify during the cover layer avalanche that comprehensively (1) calculates mine tailing be formed without heap row's maximum gauge on empty top and (2) calculate based on
Cover layer lumpiness and solidification mine tailing merge the heap row's minimum thickness flowed to prevent fine tailings inflow work surface, quantify to determine
The interval range of solidification mine tailing single heap row's thickness, carries out heap row in this interval range.
The method that a kind of tailings impoundment the most as claimed in claim 1 produces surface subsidence hole, mine in Caving Method with Large Space, its feature exists
Being mainly composed of cement, flyash, Calx in: described tailing solidifying agent, the weight ratio of three is 1.0:(3.0 ~ 5.0):
(1.5 ~ 2.5), the above-mentioned 4th) the tailing solidifying agent addition in step is 40 ~ 55 kilograms of mine tailings of interpolation in every cubic metre of Tailings Slurry
Firming agent.
The method that a kind of tailings impoundment the most as claimed in claim 2 produces surface subsidence hole, mine in Caving Method with Large Space, its feature exists
Being mainly composed of cement, flyash, Calx in: described tailing solidifying agent, 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 true CN106088107A (en) | 2016-11-09 |
| CN106088107B 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733137A (en) * | 2017-01-13 | 2017-05-31 | 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 |
| CN114033483A (en) * | 2021-11-24 | 2022-02-11 | 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 |
| CN114100844A (en) * | 2021-11-12 | 2022-03-01 | 河南金源黄金矿业有限责任公司 | Process for comprehensive recovery and concentrated discharge of tailings |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0339521A (en) * | 1989-07-04 | 1991-02-20 | Koichi Uemura | Open shield method |
| CN101929160A (en) * | 2009-06-24 | 2010-12-29 | 鞍钢集团矿业公司 | Method for building impermeable tailings dams with high scattered piles by waste rocks |
| CN101974909A (en) * | 2010-09-17 | 2011-02-16 | 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0339521A (en) * | 1989-07-04 | 1991-02-20 | Koichi Uemura | Open shield method |
| CN101929160A (en) * | 2009-06-24 | 2010-12-29 | 鞍钢集团矿业公司 | Method for building impermeable tailings dams with high scattered piles by waste rocks |
| CN101974909A (en) * | 2010-09-17 | 2011-02-16 | 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733137A (en) * | 2017-01-13 | 2017-05-31 | 吉林吉恩镍业股份有限公司 | A kind of open-air pit Tailings Dam production technology |
| 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 |
| CN114100844A (en) * | 2021-11-12 | 2022-03-01 | 河南金源黄金矿业有限责任公司 | Process for comprehensive recovery and concentrated discharge of tailings |
| 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 |
| CN114033483A (en) * | 2021-11-24 | 2022-02-11 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106088107B (en) | 2018-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Green coal mining technique integrating mining-dressing-gas draining-backfilling-mining | |
| CN103967495B (en) | A kind of tailing dam dam slope mine tailing stoping method | |
| CN102261262B (en) | High-performance foam mortar filling method for mine stope | |
| CN103902780B (en) | Solid filling coal mining earth's surface Deformation prediction method | |
| CN104405436B (en) | A kind of method improving ore body Tight filling rate | |
| CN107842374B (en) | The novel inert slurry of shield and combination grouting process for upper soft lower hard water rich strata | |
| CN107975044B (en) | Method for backfilling collapse method mine by utilizing tailing surface collapse pits | |
| CN106088107B (en) | A kind of tailings impoundment is in the method in Caving Method with Large Space production mine surface subsidence hole | |
| CN105350498A (en) | Water-saving tailing discharge method | |
| CN106150546B (en) | A kind of method that the filling of goaf part is carried out according to earth's surface subsidence | |
| EP2602426A1 (en) | Liquid guiding and collection process with secondary channels for in situ leaching | |
| CN102444135A (en) | Combined mixed-discharge technology for mining barren rock soil and solidified tailings | |
| CN103967496B (en) | A kind ofly be suitable for the new method of mountain valley-type tailing dam dam slope mine tailing being carried out to back production | |
| CN102767395A (en) | Anti-seepage method for mine underground reservoirs | |
| CN102562069B (en) | The fluid-filled replacement exploitation in coal seam method on high artesian body | |
| CN105971605B (en) | A kind of underground mines exploration without waster method | |
| CN105780737B (en) | A kind of super-high rockfill dam structure and its construction method for being applicable Hydraulic and Hydro-Power Engineering | |
| CN112267885A (en) | Mining method for two-step strip-cutting stoping subsequent barren rock cemented filling | |
| CN106097126A (en) | Caving Method with Large Space produces the quantization method of cave-in areas hole heap row's solidification mine tailing Rational Thickness | |
| CN109184784A (en) | Based on the synchronous filling system of fully mechanized mining gangue for mitigating coal mining subsidence area degree and method | |
| Kouame et al. | A study of technical measures for increasing the roof-contacted ratio in stope and cavity filling | |
| CN208502792U (en) | A kind of advanced double-deck ductule of crushed zone tunnel advanced support | |
| CN107762505A (en) | Based on the method that upward horizontal slice mining with stowing is used in exploitation of mineral resources | |
| CN112127831A (en) | Construction method for brine recovery well of salt lake | |
| Russkikh et al. | New technical solutions during mining C5 coal seam under complex hydro-geological conditions of western Donbass |
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 |
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. |
|
| CP01 | Change in the name or title of a patent holder |