CN107858537A - The naked pin formula mine in_situ leaching Hole pattern parameters design method of ion type rareearth - Google Patents
The naked pin formula mine in_situ leaching Hole pattern parameters design method of ion type rareearth Download PDFInfo
- Publication number
- CN107858537A CN107858537A CN201711258296.7A CN201711258296A CN107858537A CN 107858537 A CN107858537 A CN 107858537A CN 201711258296 A CN201711258296 A CN 201711258296A CN 107858537 A CN107858537 A CN 107858537A
- Authority
- CN
- China
- Prior art keywords
- mrow
- fluid injection
- msub
- mine
- ore
- 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
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 67
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 59
- 238000002386 leaching Methods 0.000 title claims abstract description 48
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 150
- 239000007924 injection Substances 0.000 claims abstract description 150
- 239000012530 fluid Substances 0.000 claims abstract description 129
- 238000000605 extraction Methods 0.000 claims abstract description 48
- 238000012360 testing method Methods 0.000 claims abstract description 32
- 230000005526 G1 to G0 transition Effects 0.000 claims abstract description 17
- 238000005065 mining Methods 0.000 claims abstract description 7
- 230000000295 complement effect Effects 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims description 65
- 239000010410 layer Substances 0.000 claims description 31
- 239000007788 liquid Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 230000035699 permeability Effects 0.000 claims description 18
- 238000002474 experimental method Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 230000001186 cumulative effect Effects 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- HPNSNYBUADCFDR-UHFFFAOYSA-N chromafenozide Chemical compound CC1=CC(C)=CC(C(=O)N(NC(=O)C=2C(=C3CCCOC3=CC=2)C)C(C)(C)C)=C1 HPNSNYBUADCFDR-UHFFFAOYSA-N 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 9
- 230000008595 infiltration Effects 0.000 claims description 8
- 238000001764 infiltration Methods 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- 235000013312 flour Nutrition 0.000 claims description 7
- 239000012452 mother liquor Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 230000002572 peristaltic effect Effects 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 235000013339 cereals Nutrition 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 125000002950 monocyclic group Chemical group 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of naked pin formula mine in_situ leaching Hole pattern parameters design method of ion type rareearth, comprise the following steps：The first step, Mine geological prospecting and live complementary testing；Second step, the relation between extraction rate and saturation degree is determined by indoor column leaching test；3rd step, calculate the fluid injection total flow of mine fluid injection stationary phase；4th step, calculate mine fluid injection stationary phase single hole fluid injection flow；5th step, calculate and check mine fluid injection stationary phase fluid injection area ore body minimum saturation；6th step, check saturation region and extraction rate；7th step, check mine slope safety coefficient.The present invention is using rare earth resources extraction rate as target, premised on mine slope safety, mine rare earth mining effect and stability of slope can be taken into account simultaneously, improvement to naked pin formula mine in_situ leaching fluid injection work arrangement and fluid injection technology has good Engineering Guidance meaning, the generation of landslide security incident can be avoided, it is ensured that the safety of people's lives and properties.
Description
Technical field
The present invention relates to the fluid injection work arrangement in ionic type rare earth ore in-situ deposit impregnating technology and fluid injection flow rate calculation, for
Naked pin formula Rare-earth Mine, on the premise of given rare earth resources extraction rate and mine slope safety coefficient desired value, propose hole pattern
Parameters design.
Background technology
Ion adsorption type rare earth ore (abbreviation ion type rareearth ore) is a kind of new external rare earth found in south China
Mineral deposit, it is unique in that rare earth element is mainly adsorbed on the mineral such as clay and mica in weathering crust in ionic condition,
Have the characteristics that rare earth partition is complete, radioactivity is small, it is easy exploitation and rich in middle heavy rare earth element.According to mine exposed bedrock feelings
Condition, ion type rareearth ore can be divided into naked pin formula (basement rock is exposed at the foot of the hill) and full-covering type (basement rock is covered by completely decomposed layer) etc.
Type.Wherein, naked pin formula Rare Earth Mine accounts for 20% or so of mine total quantity.
In_situ leaching technique is the ion type rareearth ore production practice promoted the use of at present, the technique mainly using 1%~
The ammonium sulfate of 4% low concentration is injected in ore body by fluid injection hole pattern as leaching agent, passes through liquid collection engineering recovering rare earth mother
Liquid, and rare earth mother solution is delivered into surface facility and cleaned, precipitate, extract, process, reach the purpose of recovering rare earth resource.It is former
Ground deposit impregnating technology, which has, not to be destroyed ore body surface vegetation, not to excavate table soil and the advantages of ore, but simultaneously there is also some urgently
Solve the problems, such as, such as：The determination of fluid injection work arrangement and fluid injection flow relies primarily on engineering experience, lacks effective design
Theoretical and method, resource extraction rate are difficult to ensure that with mine slope security.Many mine rare earth resources exploitation losses are bigger than normal, leaching
Take rate relatively low, remain to produce rare earth by repeatedly multiple fill；The control of some mine fluid injection flows is improper, easily induces landslide
Deng geological disaster.
The content of the invention
The invention aims to overcome naked pin formula rare earth ore in-situ deposit impregnating technology in fluid injection work arrangement and fluid injection stream
Amount determines to rely primarily on the deficiency of engineering experience, there is provided a kind of effective naked pin formula mine in_situ leaching of ion type rareearth
Hole pattern parameters design method.
Technical scheme：A kind of naked pin formula mine in_situ leaching Hole pattern parameters design method of ion type rareearth, bag
Include following steps：
The first step, Mine geological prospecting and live complementary testing
Mine geological prospecting is carried out, obtains following information：The detailed topographic and geologic data in mine, respectively by mine height
3 cross sections are chosen at peak, low ebb and average height, the log sheet in 3 cross sections is drawn, determines table in log sheet
The line of demarcation and the line of demarcation of completely decomposed layer and basement rock of soil layer and completely decomposed layer；The size of raw ore ion phase rare earth grade is with dividing
Cloth, ore body scope is determined on the log sheet of 3, mine；
The basic physical and mechanical parameters of test topsoil and completely decomposed layer soil body, acquisition topsoil and completely decomposed layer soil body
Natural density, natural moisture content, void ratio, the measured data of liquid limit and plastic limit；Using field direct shear test test topsoil and
The Shear Strength Index of completely decomposed layer soil body；Utilize vibrating screen classifier and laser particle size analyzer test topsoil and completely decomposed layer
The grain composition of the soil body, soil body particle diameter summation curve is drawn, judges soil property type；Topsoil and completely decomposed are tested using monocyclic method
The saturation permeability coefficient of layer soil body；Topsoil and completely decomposed layer soil body moisture content and matric suction are tested using TEN types tensometer
Corresponding relation, using relational expression (1) fitting obtain the soil-water characteristic curve of ore body, using relational expression (2) fitting obtain ore body
Infiltration coefficient curve；
Relational expression (1)：
ψ is soil body matric suction in relational expression (1), and θ (ψ) is corresponding moisture content when soil body matric suction is ψ, θsFor soil
The saturated aqueous rate of body, θrFor soil body residual water content, λ, m, n are fitting parameter, m=1-1/n；
Relational expression (2)：
K in relational expression (2)r(θ) is corresponding relative coefficient of permeability when soil moisture content is θ,K (θ) is
Corresponding infiltration coefficient when soil moisture content is θ, KsFor soil body saturation permeability coefficient；S is soil body relative saturation degree；
Second step, the relation between extraction rate and saturation degree is determined by indoor column leaching test
Using high 30~100 centimetres, 8~20 centimetres of internal diameter transparent organic glass pipe as leaching ore pillar, leaching ore pillar bottom
Pad a permeable stone；By the ore body soil sample drilled through in the first step during mine exploration drying, cross 2~5 mm sieves remove coarse sand particles,
Mix thoroughly, first sampling and testing raw ore intermediate ion phase rare earth grade, then is fitted into by several times by ore body actual porosity and soaks in ore pillar, every time 3
~8 centimetres, reality, interlayer shaving are hit in layering；After sample ore installs, then a filter paper is padded, one piece of cotton gauze is laid on filter paper (prevents water
Drop breakdown filter paper)；Leaching leaching is carried out using the leaching ore deposit agent solution with same concentrations in mining production, identical liquid-solid ratio, leaching ore deposit agent is molten
After liquid has been noted, the clear water for using 2 times of sample ore pore volumes instead carries out washup, is received during experiment according to every 50~100 milliliters of volumes
Collect a mother liquor；The dropwise addition of leaching ore deposit agent solution and clear water is controlled using peristaltic pump；During experiment, by testing mother liquor middle rare earth
Ion concentration draws rare earth ion breakthrough curve, calculates ore body moisture content by mass change before and after weighing sample ore experiment, passes through
Test mine tailing ion phase rare earth grade and calculate extraction rate；Experiment carries out 6~15 operating modes altogether, and each operating mode corresponds to different peristaltic pumps
Flow, wherein flow maximum are that sample ore saturation permeability coefficient is multiplied by leaching ore pillar cross-sectional area, and flow minimum is maximum
0.05 times, flow median equidistant value between the minimum and maximum；Finally utilize the experiment knot of each operating condition of test
Fruit, fit the functional relation between extraction rate and saturation degree；
3rd step, calculate the fluid injection total flow of mine fluid injection stationary phase
It is assumed that liquid injection hole is evenly arranged according to rhombus, according to XB/T 904-2016《Ionic type rare earth ore in-situ leaches exploitation
Safety in production specification》And engineering experience, determine fluid injection pore radius R0, according to mine landform and the gradient, determine that liquid injection hole arranges model
Enclose, calculate fluid injection area area Aall；
According to head grade distribution and same type mining production experience and data, mine rare earth resources extraction rate η mesh is determined
Scale value, η >=85.0%, give an extraction rate initial value η0, η0It is slightly less than desired value；According to fluid injection area area AallAnd mine 3
Orebody thickness and distribution situation on individual cross section, determine that the fluid injection area of each section ore body accounts for the percentage of ore body cumulative volume, and count
Calculate average percent；Because non-fluid injection area ore body rare earth resources can not leach, the influence of saturation region is not considered first, it is assumed that extraction rate
All provided by fluid injection area, the functional relation between the extraction rate and saturation degree that are drawn using second step can calculate fluid injection area ore deposit
The average staturation S of bodyra；
According to ore body infiltration coefficient curve and average staturation Sra, calculate mine fluid injection area ore body using relational expression (2) and put down
With respect to coefficient of permeability Kra；According to mine liquid injection hole arrangement areas AallWith saturation permeability coefficient Ks, calculated using relational expression (3)
Fluid injection flow Q after mine flow field is stableall；
Relational expression (3)：
Qall=KraKsAall(3)；
4th step, calculate mine fluid injection stationary phase single hole fluid injection flow
According to XB/T 904-2016《Ionic type rare earth ore in-situ leaches exploitation safety in production specification》And engineering experience, give
Fixed liquid injection hole arrangement hole pattern spacing L values, the quantity N (round numbers) of liquid injection hole in fluid injection area, profit are calculated using relational expression (4)
The steady seepage discharge Q of hole pattern fluid injection single hole is calculated with relational expression (5)m, mine fluid injection stationary phase is determined by tentative calculation using relational expression (6)
Average temperature depth of water H in hole0；
Relational expression (4)：
Relational expression (5)：
Relational expression (6)：
Q in relational expression (6)sFor the steady seepage discharge of single hole fluid injection,For hole week saturation degree Sr>=80.0% scope soil body is averaged
Hydraulic gradient, 5.62, H are taken for flour sand class soil property0For the average temperature depth of water in liquid injection hole hole；
5th step, calculate and check mine fluid injection stationary phase fluid injection area ore body minimum saturation
According to average temperature depth of water H in liquid injection hole0And hole pattern spacing L, by the influence of each liquid injection hole in hole pattern fluid injection
Scope is the hexagonal prism that the length of side is equal to 0.577L, further equivalent into the cylinder that radius is 0.525L by volume equal principle
Body, establish axisymmetric model and calculate ore body minimum saturation Srmin, it is located at the friendship of liquid level line and periphery in hole
At point；Fluid injection area ore body minimum saturation S can be determined using linear interpolation according to table 1 for flour sand class soil propertyrmin；
Table 1：Hole pattern fluid injection minimum saturation SrminComputational chart (%)
Check fluid injection area ore body minimum saturation SrminValue, works as SrminWhen >=80.0%, it is believed that the saturation distribution in fluid injection area
Than more uniform, extraction rate meets to require；Work as SrminDuring ＜ 80.0%, it is believed that the saturation degree in fluid injection area is not uniform enough, easily produces
Ore deposit blind area is soaked, should now reduce hole pattern spacing L values, the design for re-starting the step of the 4th step~the 5th calculates, until satisfaction
Srmin>=80.0%；
6th step, check saturation region and extraction rate
3, mine cross section in the first step is chosen, calculates the rising situation of saturation after mine fluid injection stabilization, it is accurate to calculate
Ore body saturation region (saturation degree S after fluid injection is stabler=100%), fluid injection area and non-fluid injection area account for the percentage of ore body cumulative volume respectively
Than；Consider influence of the saturation region to extraction rate, functional relation and pass between the extraction rate and saturation degree that are drawn using second step
It is that formula (7) accurately calculates extraction rate η；
η is nugget resource extraction rate in relational expression (6)；VallFor ore body cumulative volume in nugget；Vi、rviRespectively ore body i-th
The volume of individual saturation degree subregion and account for ore body cumulative volume VallPercentage；ηiFor rare earth resources corresponding to i-th of saturation degree subregion
Extraction rate；N is saturation degree number of partitions in nugget, considers saturation region and fluid injection area Liang Ge regions in the design；
Whether checking computations extraction rate η meets to require, if η >=85.0%, meets to require；If η ＜ 85.0%, leaching should be adjusted
Rate initial value is taken, the calculating of the step of the 4th step~the 6th is re-started, until meeting η >=85.0%；
7th step, check mine slope safety coefficient
3, mine cross section in the first step is chosen, limit of utilization balancing method calculates mine fluid injection stationary phase side slope safety system
Number, when safety coefficient >=1.20, it is believed that mine is safe, and design terminates；As safety coefficient ＜ 1.20, it is believed that mine
Safety coefficient does not reach requirement, should now expand fluid injection area area Aall, reduce fluid injection area's fluid injection total flow Qall, re-start
The design of the step of three steps~the 7th calculates, until meeting to work as safety coefficient >=1.20；
So far, naked pin formula Rare-earth Mine in_situ leaching Hole pattern parameters such as fluid injection area area Aall, fluid injection pore radius R0, hole pattern
Spacing L, fluid injection total flow QallAnd single hole fluid injection flow QmAll determine.
The naked pin formula mine in_situ leaching Hole pattern parameters design method of ion type rareearth proposed by the present invention, is soaked with rare earth resources
It is target to take rate, premised on mine slope safety, mine rare earth mining effect and stability of slope can be taken into account simultaneously, to naked pin
Formula mine in_situ leaching fluid injection work arrangement and the improvement of fluid injection technology have good Engineering Guidance meaning, can avoid coming down
The generation of security incident, it is ensured that the safety of people's lives and properties.
Embodiment
Underground experiment has been carried out to the exploitation of the naked pin formula ion type rareearth mine in_situ leaching in Longnan using the present invention, it is real
It is as follows to apply process：
The first step, Mine geological prospecting and live complementary testing
Mine geological prospecting is carried out, obtains following information：(1) the high 40m in mine, north and south width 75m, east-west length
100m, the massif gradient are 28 °~34 °, and the mine gross area is 7672m2.Mine soil layer is by topsoil, completely decomposed layer and basement rock group
Into, respectively in the section by choosing 3 cross sections at mine peak, low ebb and average height, 3 log sheets are drawn,
Determine the line of demarcation and the line of demarcation of completely decomposed layer and basement rock of topsoil and completely decomposed layer in log sheet；(2) raw ore is put down
Equal grade is 0.356 ‰, and ore body scope is determined on the log sheet of 3, mine.
The basic physical and mechanical parameters of test topsoil and completely decomposed layer soil body, acquisition topsoil and completely decomposed layer soil body
Natural density, natural moisture content, void ratio, the measured data of liquid limit and plastic limit；Using field direct shear test test topsoil and
The Shear Strength Index of completely decomposed layer soil body；Utilize vibrating screen classifier and laser particle size analyzer test topsoil and completely decomposed layer
The grain composition of the soil body, soil body particle diameter summation curve is drawn, wherein, the topsoil soil body is silty clay, and completely decomposed layer soil body is
Flour sand；The saturation permeability coefficient of topsoil and completely decomposed layer soil body is tested using monocyclic method, wherein, topsoil Ks=0.1m/d,
Completely decomposed layer Ks=0.5m/d；Topsoil and completely decomposed layer soil body moisture content and matric suction are tested using TEN types tensometer
Corresponding relation, the soil-water characteristic curve of ore body is obtained using relational expression (1) fitting, and ore body is obtained using relational expression (2) fitting
Infiltration coefficient curve, its curve fitting parameter are：θs=0.48, θr=0.023, λ=12.3, m=0.49, n=1.97.
Relational expression (1)：
ψ is soil body matric suction in relational expression (1), and θ (ψ) is corresponding moisture content when soil body matric suction is ψ, θsFor soil
The saturated aqueous rate of body, θrFor soil body residual water content, λ, m, n are fitting parameter, m=1-1/n.
Relational expression (2)：
K in relational expression (2)r(θ) is corresponding relative coefficient of permeability when soil moisture content is θ,K (θ) is
Corresponding infiltration coefficient when soil moisture content is θ, KsFor soil body saturation permeability coefficient；S is soil body relative saturation degree.
Second step, the relation between extraction rate and saturation degree is determined by indoor column leaching test
Using high 60 centimetres, 10 centimetres of internal diameter transparent organic glass pipe one is padded as leaching ore pillar, leaching ore pillar bottom thoroughly
Water stone；Coarse sand particles are removed into the ore body soil sample drilled through in the first step during mine exploration drying, excessively 2 mm sieves, mixed thoroughly, are first sampled
Raw ore intermediate ion phase rare earth grade is tested, then is fitted into by several times in leaching ore pillar by ore body actual porosity (0.975), 5 centimetres every time,
Reality, interlayer shaving are hit in layering；After sample ore installs, then a filter paper is padded, one piece of cotton gauze is laid on filter paper (prevents water droplet breakdown filter
Paper)；Using with same concentrations in mining production (2%), identical liquid-solid ratio (1：5) leaching ore deposit agent solution carries out leaching leaching, soaks ore deposit agent
After solution has been noted, the clear water for using 2 times of sample ore pore volumes instead carries out washup, according to every 50 milliliters of volume collections one during experiment
Secondary mother liquor；The dropwise addition of leaching ore deposit agent solution and clear water is controlled using peristaltic pump；During experiment, by testing mother liquor Rare Earth Ion
Concentration draws rare earth ion breakthrough curve, calculates ore body moisture content by mass change before and after weighing sample ore experiment, passes through test
Mine tailing ion phase rare earth grade calculates extraction rate；Experiment carries out 8 operating modes altogether, and each operating mode corresponds to different wriggling pump discharges (stream
Amount maximum is that sample ore saturation permeability coefficient is multiplied by leaching ore pillar cross-sectional area, and flow minimum is 0.05 times of maximum, is flowed
Measure median equidistant value between the minimum and maximum), finally using the result of the test of each operating condition of test, fit leaching
Take the functional relation between rate and saturation degree, i.e. relational expression (3).
Relational expression (3)：
3rd step, determine mine fluid injection work arrangement basic parameter
It is assumed that liquid injection hole is evenly arranged according to rhombus, according to《Ionic type rare earth ore in-situ leaches exploitation safety in production specification》
(XB/T904-2016) and engineering experience, fluid injection pore radius R is determined0=0.09 meter, according to mine landform and the gradient, determine fluid injection
Scope is arranged in hole, calculates fluid injection area area Aall=4420 square metres.
According to head grade distribution and same type mining production experience and data, mine rare earth resources extraction rate η mesh is determined
Scale value, such as η >=85.0%, it is η to give extraction rate initial value0=80.0%；According to fluid injection area area AallAnd mine typical section
Orebody thickness and distribution situation, determine that the fluid injection area of ore body and non-fluid injection area account for the percentage of ore body cumulative volume respectively, wherein, ore deposit
The fluid injection area scope of body accounts for the 85.2% of ore body cumulative volume.Because non-fluid injection area ore body rare earth resources can not leach, do not consider first
The influence of saturation region, it is assumed that extraction rate is all provided by fluid injection area, and fluid injection area ore body can be calculated using relational expression (3)
Average staturation Sra=92.9%.
According to ore body infiltration coefficient curve and average staturation Sra, mine fluid injection area ore deposit is calculated using relational expression (2)
The average relative coefficient of permeability K of bodyra=0.354.According to mine liquid injection hole arrangement areas AallWith saturation permeability coefficient Ks, utilize pass
It is the fluid injection flow Q that formula (4) is calculated after the stabilization of mine flow fieldall=782.3 cubic metres.
Relational expression (4)：
Qall=KraKsAall (4)
4th step, calculate mine fluid injection stationary phase single hole fluid injection flow
According to《Ionic type rare earth ore in-situ leaches exploitation safety in production specification》(XB/T 904-2016) and engineering experience,
Liquid injection hole arrangement spacing L=1.8 rice is given after tentative calculation, the number of liquid injection hole in fluid injection area is calculated using relational expression (5)
N=1575 are measured, the steady seepage discharge Q of hole pattern fluid injection single hole is calculated using relational expression (6)m=0.497 cubic metre.Utilize relation
Formula (7) determines average temperature depth of water H in the fluid injection stationary phase hole of mine by tentative calculation0=0.35 meter.
Relational expression (5)：
Relational expression (6)：
Relational expression (5)：
Q in relational expression (7)sFor the steady seepage discharge of single hole fluid injection,For hole week saturation degree Sr>=80.0% scope soil body is averaged
Hydraulic gradient, 5.62, H are taken for flour sand class soil property0For the average temperature depth of water in liquid injection hole hole.
5th step, calculate and check mine fluid injection stationary phase fluid injection area ore body minimum saturation
This experiment mine ore body soil property type is flour sand, uses linear interpolation to obtain fluid injection area ore body according to table 1 minimum
Saturation degree Srmin=86.3%.
Table 1：Hole pattern fluid injection minimum saturation SrminComputational chart (%)
Through checking computations, fluid injection area ore body minimum saturation SrminWhen >=80.0%, it is believed that the saturation distribution in fluid injection area compares
Uniformly, extraction rate meets to require.
6th step, check saturation region and extraction rate
3, mine cross section in selecting step one, the rising situation of saturation after mine fluid injection stabilization is calculated, it is accurate to calculate
Ore body saturation region (saturation degree S after fluid injection is stabler=100%), fluid injection area and non-fluid injection area account for the percentage of ore body cumulative volume, meter
It is respectively 53.6%, 31.2% and 15.2% to calculate result.Consider influence of the saturation region to extraction rate, utilize utilization relational expression (3)
And relational expression (8) accurately calculates extraction rate η=85.7%.
η is nugget resource extraction rate in relational expression (8)；VallFor ore body cumulative volume in nugget；Vi、rviRespectively ore body i-th
The volume of individual saturation degree subregion and account for ore body cumulative volume VallPercentage；ηiFor rare earth resources corresponding to i-th of saturation degree subregion
Extraction rate；N is saturation degree number of partitions in nugget, considers saturation region and fluid injection area Liang Ge regions in the design.
Through checking computations, rare earth resources extraction rate η >=85.0%, meet to require.
7th step, check mine slope safety coefficient
3, mine cross section in selecting step one, limit of utilization balancing method calculate mine fluid injection stationary phase side slope safety system
Number, wherein, Side Slope Safety Coefficient minimum value is 1.21 positioned at the left slope of the 2nd section.Through checking computations, safety coefficient >=1.20, recognize
It is safe for mine, design terminates.
So far, naked pin formula Rare-earth Mine in_situ leaching Hole pattern parameters such as fluid injection area area Aall, fluid injection pore radius R0, hole pattern
Arrange spacing L, fluid injection total flow QallAnd single hole fluid injection flow QmAll determine.
Application effect：To verify the validity that naked pin formula Rare-earth Mine Hole pattern parameters design is carried out using the present invention, to letter
Certain rich naked pin formula ion type rareearth mine in_situ leaching recovery process is monitored in real time, finds that massif does not occur in production process
The geological disasters such as landslide；After production terminates, ore body mine tailing sample ore is drilled through, it is 0.049 ‰ that test, which obtains the average rare earth grade of mine tailing,
Rare earth extraction rate η is 86.2%, meets the requirement of η >=85.0%.
Claims (1)
1. a kind of naked pin formula mine in_situ leaching Hole pattern parameters design method of ion type rareearth, it is characterized in that, comprise the following steps：
The first step, Mine geological prospecting and live complementary testing
Mine geological prospecting is carried out, obtains following information：The detailed topographic and geologic data in mine, respectively by mine peak,
3 cross sections are chosen at low ebb and average height, draw the log sheet in 3 cross sections, determine table soil in log sheet
The line of demarcation and the line of demarcation of completely decomposed layer and basement rock of layer and completely decomposed layer；The size of raw ore ion phase rare earth grade is with dividing
Cloth, ore body scope is determined on the log sheet of 3, mine；
The basic physical and mechanical parameters of topsoil and completely decomposed layer soil body are tested, obtain the natural of topsoil and completely decomposed layer soil body
Density, natural moisture content, void ratio, the measured data of liquid limit and plastic limit；Topsoil and full blast are tested using field direct shear test
Change the Shear Strength Index of layer soil body；Utilize vibrating screen classifier and laser particle size analyzer test topsoil and completely decomposed layer soil body
Grain composition, draw soil body particle diameter summation curve, judge soil property type；Topsoil and completely decomposed layer soil are tested using monocyclic method
The saturation permeability coefficient of body；Topsoil and pair of completely decomposed layer soil body moisture content and matric suction are tested using TEN types tensometer
It should be related to, the soil-water characteristic curve of ore body is obtained using relational expression (1) fitting, oozing for ore body is obtained using relational expression (2) fitting
Saturating coefficient curve；
Relational expression (1)：
<mrow>
<mi>&theta;</mi>
<mrow>
<mo>(</mo>
<mi>&psi;</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<msub>
<mi>&theta;</mi>
<mi>r</mi>
</msub>
<mo>+</mo>
<mfrac>
<mrow>
<msub>
<mi>&theta;</mi>
<mi>s</mi>
</msub>
<mo>-</mo>
<msub>
<mi>&theta;</mi>
<mi>r</mi>
</msub>
</mrow>
<msup>
<mrow>
<mo>&lsqb;</mo>
<mn>1</mn>
<mo>+</mo>
<msup>
<mrow>
<mo>(</mo>
<mfrac>
<mi>&psi;</mi>
<mi>&lambda;</mi>
</mfrac>
<mo>)</mo>
</mrow>
<mi>n</mi>
</msup>
<mo>&rsqb;</mo>
</mrow>
<mi>m</mi>
</msup>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</mrow>
ψ is soil body matric suction in relational expression (1), and θ (ψ) is corresponding moisture content when soil body matric suction is ψ, θsSatisfy for the soil body
And moisture content, θrFor soil body residual water content, λ, m, n are fitting parameter, m=1-1/n；
Relational expression (2)：
<mrow>
<mfenced open = "{" close = "">
<mtable>
<mtr>
<mtd>
<mrow>
<msub>
<mi>K</mi>
<mi>r</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>&theta;</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<msup>
<mi>S</mi>
<mn>0.5</mn>
</msup>
<msup>
<mrow>
<mo>&lsqb;</mo>
<mn>1</mn>
<mo>-</mo>
<msup>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>-</mo>
<msup>
<mi>S</mi>
<mfrac>
<mn>1</mn>
<mi>m</mi>
</mfrac>
</msup>
<mo>)</mo>
</mrow>
<mi>m</mi>
</msup>
<mo>&rsqb;</mo>
</mrow>
<mn>2</mn>
</msup>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>S</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mi>&theta;</mi>
<mrow>
<mo>(</mo>
<mi>&psi;</mi>
<mo>)</mo>
</mrow>
<mo>-</mo>
<msub>
<mi>&theta;</mi>
<mi>r</mi>
</msub>
</mrow>
<mrow>
<msub>
<mi>&theta;</mi>
<mi>s</mi>
</msub>
<mo>-</mo>
<msub>
<mi>&theta;</mi>
<mi>r</mi>
</msub>
</mrow>
</mfrac>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<msup>
<mrow>
<mo>&lsqb;</mo>
<mn>1</mn>
<mo>+</mo>
<msup>
<mrow>
<mo>(</mo>
<mfrac>
<mi>&psi;</mi>
<mi>&lambda;</mi>
</mfrac>
<mo>)</mo>
</mrow>
<mi>n</mi>
</msup>
<mo>&rsqb;</mo>
</mrow>
<mi>m</mi>
</msup>
</mfrac>
</mrow>
</mtd>
</mtr>
</mtable>
</mfenced>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>2</mn>
<mo>)</mo>
</mrow>
</mrow>
K in relational expression (2)r(θ) is corresponding relative coefficient of permeability when soil moisture content is θ,K (θ) is the soil body
Corresponding infiltration coefficient when moisture content is θ, KsFor soil body saturation permeability coefficient；S is soil body relative saturation degree；
Second step, the relation between extraction rate and saturation degree is determined by indoor column leaching test
Using high 30~100 centimetres, 8~20 centimetres of internal diameter transparent organic glass pipe as leaching ore pillar, leaching ore pillar bottom pad one
Individual permeable stone；Coarse sand particles are removed into the ore body soil sample drilled through in the first step during mine exploration drying, excessively 2~5 mm sieves, mixed
It is even, first sampling and testing raw ore intermediate ion phase rare earth grade, then is fitted into by several times by ore body actual porosity and soaks in ore pillar, every time 3~8
Centimetre, reality, interlayer shaving are hit in layering；After sample ore installs, then a filter paper is padded, one piece of cotton gauze is laid on filter paper；Using with ore deposit
Same concentrations, the leaching ore deposit agent solution of identical liquid-solid ratio carry out leaching leaching in the production of mountain, after leaching ore deposit agent solution has been noted, use 2 times of sample ores instead
The clear water of pore volume carries out washup, according to every mother liquor of 50~100 milliliters of volume collections during experiment；Utilize peristaltic pump
The dropwise addition of control leaching ore deposit agent solution and clear water；During experiment, rare earth ion is drawn by testing mother liquor Rare Earth Ion concentration
Breakthrough curve, ore body moisture content is calculated by mass change before and after weighing sample ore experiment, by testing mine tailing ion phase rare earth product
Position calculates extraction rate；Experiment carries out 6~15 operating modes altogether, and each operating mode corresponds to different wriggling pump discharges, wherein flow maximum
Leaching ore pillar cross-sectional area is multiplied by for sample ore saturation permeability coefficient, flow minimum is 0.05 times of maximum, flow median
Equidistant value between the minimum and maximum；The result of the test of each operating condition of test is finally utilized, fits extraction rate with satisfying
Functional relation between degree；
3rd step, calculate the fluid injection total flow of mine fluid injection stationary phase
It is assumed that liquid injection hole is evenly arranged according to rhombus, according to XB/T 904-2016《Ionic type rare earth ore in-situ leaches exploitation safety
Produce specification》And engineering experience, determine fluid injection pore radius R0, according to mine landform and the gradient, determine that liquid injection hole arranges scope, meter
Calculate fluid injection area area Aall；
According to head grade distribution and same type mining production experience and data, mine rare earth resources extraction rate η desired values are determined,
η >=85.0%, give an extraction rate initial value η0, η0It is slightly less than desired value；According to fluid injection area area AallAnd 3, mine is cross-section
Orebody thickness and distribution situation on face, determine that the fluid injection area of each section ore body accounts for the percentage of ore body cumulative volume, and calculate average
Percentage；Because non-fluid injection area ore body rare earth resources can not leach, do not consider the influence of saturation region first, it is assumed that extraction rate all by
Fluid injection area provides, and the functional relation between the extraction rate and saturation degree that are drawn using second step can calculate the flat of fluid injection area ore body
Equal saturation degree Sra；
According to ore body infiltration coefficient curve and average staturation Sra, the average phase of mine fluid injection area ore body is calculated using relational expression (2)
To coefficient of permeability Kra；According to mine liquid injection hole arrangement areas AallWith saturation permeability coefficient Ks, mine is calculated using relational expression (3)
Fluid injection flow Q after flow field is stableall；
Relational expression (3)：
Qall=KraKsAall(3)；
4th step, calculate mine fluid injection stationary phase single hole fluid injection flow
According to XB/T 904-2016《Ionic type rare earth ore in-situ leaches exploitation safety in production specification》And engineering experience, give one
Individual liquid injection hole arranges hole pattern spacing L values, and the quantity N of liquid injection hole in fluid injection area is calculated using relational expression (4), is utilized relational expression (5)
Calculate the steady seepage discharge Q of hole pattern fluid injection single holem, determined using relational expression (6) by tentative calculation in the fluid injection stationary phase hole of mine averagely surely
Determine depth of water H0；
Relational expression (4)：
<mrow>
<mi>N</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mn>2</mn>
<msqrt>
<mn>3</mn>
</msqrt>
<msub>
<mi>A</mi>
<mrow>
<mi>a</mi>
<mi>l</mi>
<mi>l</mi>
</mrow>
</msub>
</mrow>
<mrow>
<mn>3</mn>
<msup>
<mi>L</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>4</mn>
<mo>)</mo>
</mrow>
</mrow>
Relational expression (5)：
<mrow>
<msub>
<mi>Q</mi>
<mi>m</mi>
</msub>
<mo>=</mo>
<mfrac>
<msub>
<mi>Q</mi>
<mrow>
<mi>a</mi>
<mi>l</mi>
<mi>l</mi>
</mrow>
</msub>
<mi>N</mi>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>5</mn>
<mo>)</mo>
</mrow>
</mrow>
Relational expression (6)：
<mrow>
<mfenced open = "{" close = "">
<mtable>
<mtr>
<mtd>
<mrow>
<msub>
<mi>Q</mi>
<mi>s</mi>
</msub>
<mo>=</mo>
<mn>2</mn>
<msub>
<mi>&pi;R</mi>
<mn>0</mn>
</msub>
<mrow>
<mo>(</mo>
<mfrac>
<msub>
<mi>R</mi>
<mn>0</mn>
</msub>
<mn>2</mn>
</mfrac>
<mo>+</mo>
<msub>
<mi>H</mi>
<mn>0</mn>
</msub>
<mo>)</mo>
</mrow>
<mover>
<msub>
<mi>I</mi>
<mi>e</mi>
</msub>
<mo>&OverBar;</mo>
</mover>
<msub>
<mi>K</mi>
<mi>s</mi>
</msub>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<msub>
<mi>Q</mi>
<mi>m</mi>
</msub>
<mo>=</mo>
<msub>
<mi>Q</mi>
<mi>s</mi>
</msub>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>-</mo>
<mi>&alpha;</mi>
<mo>&CenterDot;</mo>
<msup>
<mi>e</mi>
<mrow>
<mo>-</mo>
<mi>L</mi>
</mrow>
</msup>
<mo>)</mo>
</mrow>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>&alpha;</mi>
<mo>=</mo>
<mn>2.33</mn>
<mo>-</mo>
<mn>1.64</mn>
<mo>&times;</mo>
<msup>
<mn>0.35</mn>
<msub>
<mi>H</mi>
<mn>0</mn>
</msub>
</msup>
</mrow>
</mtd>
</mtr>
</mtable>
</mfenced>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>6</mn>
<mo>)</mo>
</mrow>
</mrow>
Q in relational expression (6)sFor the steady seepage discharge of single hole fluid injection,For hole week saturation degree SrThe average hydraulic of >=80.0% scope soil body
Gradient, 5.62, H are taken for flour sand class soil property0For the average temperature depth of water in liquid injection hole hole；
5th step, calculate and check mine fluid injection stationary phase fluid injection area ore body minimum saturation
According to average temperature depth of water H in liquid injection hole0And hole pattern spacing L, the coverage by each liquid injection hole in hole pattern fluid injection are
The length of side is equal to 0.577L hexagonal prism, further equivalent into the cylinder that radius is 0.525L by volume equal principle, establishes
Axisymmetric model calculates ore body minimum saturation Srmin, it is located at the point of intersection of liquid level line and periphery in hole；It is right
Fluid injection area ore body minimum saturation S can be determined using linear interpolation according to table 1 in flour sand class soil propertyrmin；
Table 1：Hole pattern fluid injection minimum saturation SrminComputational chart (%)
Check fluid injection area ore body minimum saturation SrminValue, works as SrminWhen >=80.0%, it is believed that the saturation distribution in fluid injection area compares
Uniformly, extraction rate meets to require；Work as SrminDuring ＜ 80.0%, it is believed that the saturation degree in fluid injection area is not uniform enough, easily produces leaching ore deposit
Blind area, it should now reduce hole pattern spacing L values, the design for re-starting the step of the 4th step~the 5th calculates, until meeting Srmin≥
80.0%；
6th step, check saturation region and extraction rate
3, mine cross section in the first step is chosen, the rising situation of saturation after mine fluid injection stabilization is calculated, accurately calculates fluid injection
Ore body saturation region, fluid injection area and non-fluid injection area account for the percentage of ore body cumulative volume respectively after stable；Consider saturation region to extraction rate
Influence, functional relation and relational expression (7) between the extraction rate and saturation degree that are drawn using second step accurately calculate extraction rate
η；
<mrow>
<mi>&eta;</mi>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<msub>
<mi>V</mi>
<mrow>
<mi>a</mi>
<mi>l</mi>
<mi>l</mi>
</mrow>
</msub>
</mfrac>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<mrow>
<mo>(</mo>
<msub>
<mi>V</mi>
<mi>i</mi>
</msub>
<mo>&CenterDot;</mo>
<msub>
<mi>&eta;</mi>
<mi>i</mi>
</msub>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<mrow>
<mo>(</mo>
<msub>
<mi>r</mi>
<mrow>
<mi>v</mi>
<mi>i</mi>
</mrow>
</msub>
<mo>&CenterDot;</mo>
<msub>
<mi>&eta;</mi>
<mi>i</mi>
</msub>
<mo>)</mo>
</mrow>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>7</mn>
<mo>)</mo>
</mrow>
</mrow>
η is nugget resource extraction rate in relational expression (7)；VallFor ore body cumulative volume in nugget；Vi、rviRespectively i-th of ore body is full
With degree subregion volume and account for ore body cumulative volume VallPercentage；ηiLeached for rare earth resources corresponding to i-th of saturation degree subregion
Rate；N is saturation degree number of partitions in nugget, considers saturation region and fluid injection area Liang Ge regions in the design；
Whether checking computations extraction rate η meets to require, if η >=85.0%, meets to require；If η ＜ 85.0%, extraction rate should be adjusted
Initial value, the calculating of the step of the 4th step~the 6th is re-started, until meeting η >=85.0%；
7th step, check mine slope safety coefficient
3, mine cross section in the first step is chosen, limit of utilization balancing method calculates mine fluid injection stationary phase Side Slope Safety Coefficient, when
During safety coefficient >=1.20, it is believed that mine is safe, and design terminates；As safety coefficient ＜ 1.20, it is believed that the safety in mine
Coefficient does not reach requirement, should now expand fluid injection area area Aall, reduce fluid injection area's fluid injection total flow Qall, re-start the 3rd step
The design of~the seven step calculates, until meeting to work as safety coefficient >=1.20；
So far, naked pin formula Rare-earth Mine in_situ leaching Hole pattern parameters such as fluid injection area area Aall, fluid injection pore radius R0, hole pattern spacing L,
Fluid injection total flow QallAnd single hole fluid injection flow QmAll determine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258296.7A CN107858537B (en) | 2017-12-04 | 2017-12-04 | Ion type rareearth naked foot formula mine in_situ leaching Hole pattern parameters design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258296.7A CN107858537B (en) | 2017-12-04 | 2017-12-04 | Ion type rareearth naked foot formula mine in_situ leaching Hole pattern parameters design method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107858537A true CN107858537A (en) | 2018-03-30 |
| CN107858537B CN107858537B (en) | 2019-07-26 |
Family
ID=61704894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711258296.7A Expired - Fee Related CN107858537B (en) | 2017-12-04 | 2017-12-04 | Ion type rareearth naked foot formula mine in_situ leaching Hole pattern parameters design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107858537B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157905A (en) * | 2019-06-26 | 2019-08-23 | 江西理工大学 | Using resource reserve as the ion type rareearth ore subregion electrolyte filling method of foundation |
| CN115216653A (en) * | 2022-08-04 | 2022-10-21 | 中国科学院赣江创新研究院 | Method for leaching weathering crust elution-deposited rare earth ore by using electric field |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089294A1 (en) * | 1982-03-17 | 1983-09-21 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and installation for in situ lixiviation of ore |
| CN104046774A (en) * | 2014-05-29 | 2014-09-17 | 赣州稀土矿业有限公司 | Liquid-injection and liquid-collection engineering arrangement optimization method for barefoot-type ionic rare earth ore body |
| CN106932555A (en) * | 2017-03-18 | 2017-07-07 | 江西理工大学 | In-situ ionic rare earth soaks the computational methods of the ore deposit single hole fluid injection radius of influence |
-
2017
- 2017-12-04 CN CN201711258296.7A patent/CN107858537B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089294A1 (en) * | 1982-03-17 | 1983-09-21 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and installation for in situ lixiviation of ore |
| CN104046774A (en) * | 2014-05-29 | 2014-09-17 | 赣州稀土矿业有限公司 | Liquid-injection and liquid-collection engineering arrangement optimization method for barefoot-type ionic rare earth ore body |
| CN106932555A (en) * | 2017-03-18 | 2017-07-07 | 江西理工大学 | In-situ ionic rare earth soaks the computational methods of the ore deposit single hole fluid injection radius of influence |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157905A (en) * | 2019-06-26 | 2019-08-23 | 江西理工大学 | Using resource reserve as the ion type rareearth ore subregion electrolyte filling method of foundation |
| CN115216653A (en) * | 2022-08-04 | 2022-10-21 | 中国科学院赣江创新研究院 | Method for leaching weathering crust elution-deposited rare earth ore by using electric field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107858537B (en) | 2019-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107858536B (en) | Ion type rareearth full-covering type mine in_situ leaching Hole pattern parameters design method | |
| Dunne | Hydrology, mechanics, and geomorphic implications of erosion by subsurface flow | |
| De Louw et al. | Upward groundwater flow in boils as the dominant mechanism of salinization in deep polders, the Netherlands | |
| Brkić et al. | Use of hydrochemistry and isotopes for improving the knowledge of groundwater flow in a semiconfined aquifer system of the Eastern Slavonia (Croatia) | |
| CN107092719A (en) | Water filling predominant pathway is recognized and microballoon blocks the method and device of particle diameter selection | |
| Sui et al. | Environmental implications of mitigating overburden failure and subsidences using paste-like backfill mining: a case study | |
| Cervi et al. | Origin and assessment of deep groundwater inflow in the Ca'Lita landslide using hydrochemistry and in situ monitoring | |
| Li et al. | A novel treatment method and construction technology of the pipeline gushing water geohazards in karst region | |
| CN106706885B (en) | In-situ ionic rare earth soaks the calculation method of mine liquid injection hole week volumetric water content distribution | |
| CN106381405B (en) | A kind of Rare-earth Mine liquor collecting system and method | |
| CN112508330A (en) | Method for distinguishing mine water source under disturbance of western mining area mining | |
| Ding et al. | A modelling study of seawater intrusion in the liao dong bay coastal plain, china | |
| CN107858537B (en) | Ion type rareearth naked foot formula mine in_situ leaching Hole pattern parameters design method | |
| CN107975044A (en) | A kind of method that Caving Method with Large Space mine is backfilled using tailing surface subsidence hole | |
| CN108614910A (en) | The computational methods of ion type rareearth mine in_situ leaching critical groundwater table | |
| Chen et al. | Minewater deep transfer and storage | |
| CN106223346A (en) | A kind of packing method scrapping motor-pumped well | |
| CN104573210A (en) | Method for determining permeability and rare earth recovery rate of ion-adsorption-type rare earth deposit | |
| Davidson et al. | Elemental chemistry of sand-boil discharge used to trace variable pathways of seepage beneath levees during the 2011 Mississippi River flood | |
| Kimpritis | The control of column diameter and strength in Jet Grouting processes and the influence of ground conditions | |
| CN112921192B (en) | Ion adsorption type rare earth ore mining and environment treatment integrated method | |
| Saharawat et al. | Artificial ground water recharge and recovery of a highly saline aquifer | |
| Su et al. | Mechanics of aquitard drainage by aquifer-system compaction and its implications for water-management in the North China Plain | |
| Ellington | Quantification of the impact of irrigation on the aquifer underlying the Vaalharts Irrigation Scheme | |
| Man et al. | Seepage, leaching, and embankment instability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190726 |