CN109975190A - A kind of measurable infiltrative device of different height ore pillar - Google Patents
A kind of measurable infiltrative device of different height ore pillar Download PDFInfo
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- CN109975190A CN109975190A CN201811612615.4A CN201811612615A CN109975190A CN 109975190 A CN109975190 A CN 109975190A CN 201811612615 A CN201811612615 A CN 201811612615A CN 109975190 A CN109975190 A CN 109975190A
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- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000001764 infiltration Methods 0.000 claims abstract description 14
- 230000008595 infiltration Effects 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 230000035515 penetration Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 229920005372 Plexiglas® Polymers 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000002386 leaching Methods 0.000 abstract description 30
- 230000035699 permeability Effects 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 20
- 238000002474 experimental method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 10
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of measurable infiltrative devices of different height ore pillar, including ore pillar made of being detachably connected as more piece ore column；The top of ore pillar is equipped with upper liquid level box, and the lower section of ore pillar is equipped with lower liquid level box, and the circulating pump for leachate circulation is equipped between lower liquid level box and upper liquid level box；Penetration testing is carried out by a section or more piece ore column of the infiltration measuring device to height to be measured.The measurable infiltrative device of different height ore pillar of the invention is not only capable of measuring the permeability of ore pillar entirety, also it is capable of measuring the permeability of a certain mine section, analyze the permeability of each height ore section in leaching process, foundation is provided to stack height is rationally built, the device can be carried out ore leaching experiment, the permeability of ore at the end of capable of examining or check in leaching process and leaching.The height of the device of the invention can change, can in Sulfide Ore any time measurement ore pillar permeance property, can measure different height ore pillar permeability, adapt to the requirement of experiment of different mine stack heights.
Description
Technical field
The invention belongs to the technical field of ore permeability measurement more particularly to a kind of measurable different height ore pillar infiltrations
The device of property.
Background technique
Solution mining method can be divided into Situ Leaching method, In-situ crushing-leaching method and earth's surface dump leaching method three classes, wherein dump leaching
Method applicating history is the longest, application range is the most extensive.Compared with traditional recovery method, dump leaching method is not necessarily to huge basis
The production equipment of engineering and complex and expensive, therefore short, capital cost saves, production facility equipment is simple, investment with the capital construction period
It small, many advantages, such as production cost is low, energy consumption is small, has received widespread attention.
During ore heap leaching operation, solution transports to target minreal and useful constituent transports mine heap the two processes and is required to lead to
Seepage effect completion is crossed, the permeability of mine heap is the key that determine ore heap leaching operation effect.Before carrying out commerical test, need
Carry out Column leaching experiment in laboratory, to determine permeance property of the ore in leaching process.Column leaching experiment is also known as percolated and leaches in fact
It tests, is a kind of important dump leaching laboratory experiment method.Indoor Column leaching experiment is to extract the cell cube in practical mine heap, mould
The operation for intending scene is sprayed, is leached, the relevant operations such as liquid collecting.
Column leaching experiment generally carries out in organic glass or plastic column, and experiment purpose mainly determines parameters: 1. mine
The relationship of the factors such as stone leaching rate and ore grain size, extraction time, cloth liquid intensity；2. the optium concentration of leaching agent, leaching agent and
The consumption of other chemical reagent；3. the permeance property of mine heap.
Due to the hardened and fine grained migration of chemistry, the permeability of mine heap can be gradually reduced with leaching process, even
Cause solution that can not flow.
In the prior art using the permeability of variable water level method measurement ore pillar, the permeability of ore pillar entirety can only be measured, it cannot
The permeability of a certain mine section is measured, and the permeability of each height ore section in leaching process can not be analyzed, it can not be to reasonable
It builds stack height and foundation is provided.
In addition, in the prior art there are also the permeability using lysimeter measurement ore pillar, which can not carry out ore
Leaching experiment, the permeability of ore at the end of can not examining or check in leaching process and leaching, in addition the device height can not change,
The requirement of experiment of different mine stack heights is not adapted to.
Summary of the invention
Based on the above the deficiencies in the prior art, technical problem solved by the invention is that providing one kind can measure different height
Spend the infiltrative device of ore pillar, can in Sulfide Ore any time measurement ore pillar permeance property, and can measure difference
The permeability of height ore pillar.
In order to solve the above-mentioned technical problem, the present invention is achieved through the following technical solutions: the present invention provides one kind and can survey
The infiltrative device of different height ore pillar is measured, including ore pillar made of being detachably connected as more piece ore column；
The top of the ore pillar is equipped with upper liquid level box, and the lower section of the ore pillar is equipped with lower liquid level box, the lower liquid level box and
The circulating pump for leachate circulation is equipped between upper liquid level box；
Penetration testing is carried out by a section or more piece ore column of the infiltration measuring device to height to be measured.
Further, the infiltration measuring device includes the water inlet pipe that ore column bottom is arranged in, is arranged in ore capital
The water outlet in portion.
Further, according to Darcy's law, under laminar condition, liquid is expressed as follows from the flow velocity that water outlet flows out:
V=ki (1)
In formula (1): k-infiltration coefficient；I-hydraulic gradient；
Wherein, hydraulic gradient can be represented by the formula:
In formula (2): h-head height；Ore length in L-section ore column to be measured；The section of n-ore column to be measured
Number, n=1,2,3 ...；
If the basal area of ore column is A, the flow in the t time is Q, then:
If the sectional area of water inlet pipe is a, the water level decreasing dh in dt time inner tube, then flow is dQ=-adh (4)
Formula (3) and formula (4) simultaneous can be obtained:
Formula (5) the right and left is integrated:
That is:
Therefore, the infiltration coefficient of ore column indicates are as follows:
In formula (8): h1、h2- it is respectively t1、t2The head height at moment.
Optionally, between two section ore columns with flange, be bolted.
Further, the ore in every section ore column is placed in Plexiglas cylinder.
By upper, the measurable infiltrative device of different height ore pillar of the invention is not only capable of measuring the infiltration of ore pillar entirety
Property, moreover it is possible to the permeability of a certain mine section is measured, the permeability of each height ore section in leaching process is analyzed, builds heap height to reasonable
Degree provides foundation.The device can be carried out ore leaching experiment, the infiltration of ore at the end of capable of examining or check in leaching process and leaching
Property.The height of the device of the invention can change, can in Sulfide Ore any time measurement ore pillar permeance property, can
The permeability for measuring different height ore pillar, adapts to the requirement of experiment of different mine stack heights.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, below in conjunction with preferred embodiment, and cooperates attached drawing, detailed description are as follows.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the attached drawing to embodiment is simply situated between below
It continues.
Fig. 1 is the structural schematic diagram of the measurable infiltrative device of different height ore pillar of the invention；
Fig. 2 is that single-unit ore column permeability of the invention measures figure.
Specific embodiment
The embodiment of the invention will now be described in detail with reference to the accompanying drawings, and as part of this specification passes through
Embodiment illustrates the principle of the present invention, and other aspects of the present invention, feature and its advantage will become by the detailed description
It is very clear.In the attached drawing of institute's reference, the same or similar component is indicated using identical drawing reference numeral in different figures.
The dipped journey of ore pillar of the measurable infiltrative device of different height ore pillar of the invention is as shown in Figure 1, ore is placed
In carrying out in Plexiglas cylinder, the section of ore column is only not circle, and the internal diameter of each section Plexiglas cylinder is
It 60mm, is highly 100mm, the size on-fixed numerical value of each section ore column can be changed, the quantity of ore column as needed
It is unlimited.The upper and lower of ore pillar 10 is respectively equipped with liquid level box 20 and lower liquid level box 30, between upper liquid level box 20 and lower liquid level box 30
Equipped with circulating pump 40, recycled for leachate.Ore pillar 10 is detachably connected by more piece ore column 11, two section ore columns 11 it
Between with flange, be bolted.
When measuring ore pillar permeability, any one section or more piece ore column are taken, in a specific embodiment of the present invention, such as Fig. 2
It is shown, any one section ore column 11 is chosen, and end installs discharging device additional on it, lower end installs water feed apparatus additional, is that flange connects
It connects.Meanwhile water feed apparatus connects water inlet pipe.Ore column permeability test process is as shown in Figure 2.It is general to test infiltrative liquid
For water, water is flowed into through the bottom of ore column from left side water inlet pipe, is flowed out by the water outlet above ore column.The water surface in water inlet pipe
Height difference between water outlet is h, and h is also known as head height.In t1、t2Moment writes down height of the water surface away from water outlet respectively, is denoted as
h1、h2, wherein h1、h2Respectively t1、t2The head height at moment.
According to Darcy's law, under laminar condition, liquid (water) is expressed as follows from the flow velocity that water outlet flows out:
V=ki (1)
In formula (1): k-infiltration coefficient；I-hydraulic gradient；
Wherein, hydraulic gradient can be represented by the formula:
In formula (2): h-head height；Ore length in L-section ore column to be measured；The section of n-ore column to be measured
Number, n=1,2,3 ...；
In a specific embodiment of the present invention, n=1 is taken, then hydraulic gradient is expressed as follows:
I=h/L
If the basal area of ore column is A, the flow in the t time is Q, then:
If the sectional area of water inlet pipe be a, the water level decreasing dh in dt time inner tube, then flow be
DQ=-adh (4)
Formula (3) and formula (4) simultaneous can be obtained:
Formula (5) the right and left is integrated:
That is:
Therefore, infiltration coefficient indicates are as follows:
In formula (8): h1、h2- it is respectively t1、t2The head height at moment.
The changeable height of the measurable infiltrative device of different height ore pillar of the invention, can appoint in Sulfide Ore
The permeance property of meaning moment measurement ore pillar can measure the permeability of different height ore pillar, therefore can soak in labs column real
It tests, determines the permeability of ore column, certain reference can be provided for the stack height of building of live dump leaching.
The above is a preferred embodiment of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, it is noted that for those skilled in the art, without departing from the principle of the present invention, may be used also
To make several improvement and variation, these, which improve and change, is also considered as protection scope of the present invention.
Claims (5)
1. a kind of measurable infiltrative device of different height ore pillar, which is characterized in that including detachably being connected by more piece ore column
Ore pillar made of connecing；
The top of the ore pillar is equipped with upper liquid level box, and the lower section of the ore pillar is equipped with lower liquid level box, the lower liquid level box and upper liquid
The circulating pump for leachate circulation is equipped between the case of position；
Penetration testing is carried out by a section or more piece ore column of the infiltration measuring device to height to be measured.
2. the measurable infiltrative device of different height ore pillar as described in claim 1, which is characterized in that the infiltration measurement
Device includes the water inlet pipe that ore column bottom is arranged in, the water outlet that ore column top is arranged in.
3. the measurable infiltrative device of different height ore pillar as claimed in claim 2, which is characterized in that fixed according to darcy
Rule, under laminar condition, liquid is expressed as follows from the flow velocity that water outlet flows out:
V=ki (1)
In formula (1): k-infiltration coefficient；I-hydraulic gradient；
Wherein, hydraulic gradient can be represented by the formula:
In formula (2): h-head height；Ore length in L-section ore column to be measured；The joint number of n-ore column to be measured, n=
1,2,3,…；
If the basal area of ore column is A, the flow in the t time is Q, then:
If the sectional area of water inlet pipe be a, the water level decreasing dh in dt time inner tube, then flow be
DQ=-adh (4)
Formula (3) and formula (4) simultaneous can be obtained:
Formula (5) the right and left is integrated:
That is:
Therefore, the infiltration coefficient of ore column indicates are as follows:
In formula (8): h1、h2- it is respectively t1、t2The head height at moment.
4. the measurable infiltrative device of different height ore pillar as described in claim 1, which is characterized in that two section ore columns it
Between with flange, be bolted.
5. the measurable infiltrative device of different height ore pillar as described in claim 1, which is characterized in that in every section ore column
Ore be placed in Plexiglas cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612615.4A CN109975190A (en) | 2018-12-27 | 2018-12-27 | A kind of measurable infiltrative device of different height ore pillar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811612615.4A CN109975190A (en) | 2018-12-27 | 2018-12-27 | A kind of measurable infiltrative device of different height ore pillar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308072A (en) * | 2019-07-19 | 2019-10-08 | 华北理工大学 | Deep ground stope breaking ores leach permeability detection experimental system and experimental method |
| CN113155697A (en) * | 2021-03-30 | 2021-07-23 | 中国电建集团西北勘测设计研究院有限公司 | High-pressure-resistant permeameter device suitable for filling materials and use method |
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2018
- 2018-12-27 CN CN201811612615.4A patent/CN109975190A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308072A (en) * | 2019-07-19 | 2019-10-08 | 华北理工大学 | Deep ground stope breaking ores leach permeability detection experimental system and experimental method |
| CN113155697A (en) * | 2021-03-30 | 2021-07-23 | 中国电建集团西北勘测设计研究院有限公司 | High-pressure-resistant permeameter device suitable for filling materials and use method |
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