CN103249912B - The method of sorting of ore - Google Patents
The method of sorting of ore Download PDFInfo
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- CN103249912B CN103249912B CN201180057637.9A CN201180057637A CN103249912B CN 103249912 B CN103249912 B CN 103249912B CN 201180057637 A CN201180057637 A CN 201180057637A CN 103249912 B CN103249912 B CN 103249912B
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- 238000000034 method Methods 0.000 title claims abstract description 190
- 238000000926 separation method Methods 0.000 claims abstract description 150
- 239000002994 raw material Substances 0.000 claims abstract description 142
- 239000002245 particle Substances 0.000 claims abstract description 96
- 238000003860 storage Methods 0.000 claims abstract description 35
- 238000012545 processing Methods 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 140
- 229910052742 iron Inorganic materials 0.000 claims description 64
- 230000008569 process Effects 0.000 claims description 43
- 238000004519 manufacturing process Methods 0.000 claims description 34
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 28
- 239000008187 granular material Substances 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 claims description 18
- 238000011143 downstream manufacturing Methods 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- 239000012141 concentrate Substances 0.000 claims description 13
- 238000000605 extraction Methods 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 5
- 238000005188 flotation Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 238000004876 x-ray fluorescence Methods 0.000 claims 3
- 239000000463 material Substances 0.000 description 13
- 238000005065 mining Methods 0.000 description 13
- 238000004458 analytical method Methods 0.000 description 12
- 239000002699 waste material Substances 0.000 description 10
- 230000011218 segmentation Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 238000005549 size reduction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004899 motility Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008202 granule composition Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/26—Methods of surface mining; Layouts therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The method of selection exploitation raw material and/or the storage of raw materials includes processing raw material in multiple steps, and the plurality of step includes dry separation step and wet separation, and produces the fraction with desired particle size range and required grade.
Description
The present invention relates to choose the raw material exploited.
The present invention be more particularly directed to --- but being never limited to --- iron mine（With the iron mine of storage）The exploitation raw material of form, and
Describe later in this paper.However, the present invention extends also to the raw material of exploitation and the storage original that other contain valuable constituent
Material.The valuable constituent can be metal, such as nickel and copper.The valuable constituent can also be non-raw metal, for example
Matchmaker.
Iron mine is exploited in the known lump ore from from ore deposit bench.Generally, in traditional mining, Ore
Block is very big, and such as 40m length × 20m depth × 10m are high, and contains 8000 tons of Ores.Generally, a part for ore deposit bench is by changing
A series of credit analysis ore sample acquired in drillings on the portion identifying, by determine the Ore based on quality averagely in terms of
It is (a) high-grade, (b) inferior grade or (c) waste material.Between high-grade segmentation and inferior grade and waste material and inferior grade between
Segmentation can change with the different piece of different minerals and mineral depending on series of factors.When analysis is completed, prepare the portion
The division exploiting field conceptual scheme for dividing.The program is that the position of drilling sample is determined on the plane graph of the part.A () is high-grade, (b)
The region of inferior grade or (c) waste material passes through sample analysis（Such as chemical analyses and/or mineral/material type abundance）It is determined that and marking
On plane graph, the boundary line of mark separates zones of different to note.The selection of boundary line is also contemplated for other factors, such as geology because
Element.The region defines the lump being subsequently produced.Lump is blown with explosive, is picked and transports from mine.
Ore is processed in mine or outside mine and depends on the grade determination per lump ore block.For example, ettle is used as mining filler, inferior grade
Ore is stored or is mixed with high-grade Ore, and high-grade Ore is further processed to form sale product as needed.
To the scope being processed further of grade ore from size range that is simple broken and being sized to standard, to ore dressing or lifting
Method of the iron ore quality to produce the product with specification needed for customer.The processing method can be wet method or dry method.
The major part of low grade ore is not used in mixing, and is to continue with as storage Ore.Therefore, have and be classified as in a large number
The exploitated ore deposit of low grade ore, although the Ore is inferior grade, but still with potential important economic worth.
Retouched with the International Application Serial No. PCT/AU2009/001364 (international publication WO 2010/042994) of applicant's name
A kind of selection exploitation raw material is stated（Such as iron mine, including inferior grade iron mine）Method, the method includes：
(a) determine whether the raw material of certain volume to be exploited can lift quality and exploit the certain volume raw material or
Person determines whether the raw material for exploiting the certain volume in raw material of deposit can lift quality, and
(b) appropriate crushing（For example by broken and screening）Afterwards, to be determined quality to be hoisted the raw material of exploitation or
The storage of raw materials carries out dry separation, the exploitation raw material that production quality is lifted.
The exploitation raw material of quality-improving can be met the product of specification needed for customer or can be adapted to be processed further,
For example mix with other raw materials, to produce the product for meeting specification needed for customer.
The international application also describe to determine quality to be hoisted exploit raw material or that the storage of raw materials is chosen is dry
Screening device.
Disclosure in the international specification referred includes the application by way of cross reference.
It is very different with the mining methods of routine that the international application determines whether raw material can lift the method for quality, as above institute
Discuss, the conventional method be based on lump is carried out quality averagely assess and by ore classification be high-grade, inferior grade
Or waste material.
In the international application（And the application）Middle term " can lift quality " is understood to mean that the raw material or storage exploited
The raw material deposited is the raw material of the reality or potential age deduction that can carry out dry separation to improve raw material.
The international application describes term " dry separation " and is understood to mean that to reach separation purpose, it is not necessary to add appointing for moisture
What picking method.
Term " dry separation " is interpreted as same implication in this application, to refer to and need not add water to reach separation purpose
Any picking method for dividing.
Method and apparatus described in the international application causes to reclaim valency with the storage of raw materials such as iron mine from exploiting
Value, is otherwise averagely counted based on quality as mentioned above, and this has been exploited and may be classified into low-grade raw material or useless with the storage of raw materials
Material.This granule in inferior grade raw material or waste material includes one group of individual particles higher than threshold levels, also low comprising another group
It is especially true in the case of the individual particles of threshold levels.The method and device also cause to have exploited and store from such
Recovery value in raw material such as coal：This exploited with the storage of raw materials contain shale and silica dioxide granule or by separate coal particle and
Other " impurity " granules that " impurity " granule is obtained.Final result is the product that production meets specification needed for customer.
It is to have exploited whether raw material can lift quality for determining that dual-energy X-ray analysis is described in the international application
A kind of selection.It is to have determined as to lift quality original for dry separation that dual-energy X-ray analysis is also described in the international application
A kind of selection of the feed particles of material.
International Application Serial No. PCT/AU2009/001179 (international publication WO 2010/025528) with the name of applicant
Describe the method and apparatus for raw material having been exploited for dual-energy X-ray analysis.In this application, term " dual-energy X-ray point
Analysis " is understood to mean that
The analysis of the processing data detected by line.Such process can cause impact of the non-component factor to Monitoring Data to minimize,
So that this data provides the more clearly information of the composition with regard to raw material, type or form.In the international specification referred
Disclosure the application is included by way of cross reference.
The applicant is to having exploited the method for raw material or the storage of raw materials for selection described in above-mentioned international application and having set
Method and apparatus that is standby and having exploited raw material or the storage of raw materials for dual-energy X-ray analysis has carried out further R＆D work.
Specifically, applicant has carried out further R＆D work to the dry sorter for exploiting raw material or the storage of raw materials, should
Dry sorter is analyzed using dual-energy X-ray and assists to determine that the granule for exploiting raw material or the storage of raw materials is above or below threshold
Value grade, is then based on the classification and determines the granule for carrying out dry separation raw material.
Foregoing description is in Australia or is not to be seen as the description for being common sense elsewhere.
It has been appreciated by the applicant that dry separation and wet separation（wet concentration）The combination of step, optionally in combination with crushing
Step and size separation step, effectively can will lift the quality for having exploited raw material and the storage of raw materials with production with desired particle size range
With the fraction of required grade（fraction）Combine.Specifically, it has been appreciated by the applicant that between an ore deposit or multiple ore deposits
There is grade differential and mix separate sources to obtain the product hierarchy with the desired particle size distribution for meeting customer's specification
Ore needs in the case of, dry separation and the combination of wet separation provide sizable motility can to extraction operation.Application
People is also realized that dry separation and the combination of wet separation, for example, for the exploitated ore from traditional extraction operation or storage ore deposit
Stone and for be assessed as " quality can be lifted " exploitated ore and storage Ore be beneficial.
In the application, term " wet separation " can be regarded as any concentration step for needing to add water.
The invention provides choosing the method for having exploited raw material and/or the storage of raw materials, the method is included in multiple steps
Process the fraction of the raw material and production with desired particle size range and required grade, the plurality of step include dry separation step and
Wet separation.
Terms used herein " desired particle size range " can be the desired particle size range for meeting customer's specification.The desired particle size
Scope can be down stream processing steps or customer particle size range required the step of enforcement.Under any circumstance, customer's specification institute
The particle size range for needing depends on the requirement for exploiting raw material and one or more down stream processing steps.For steelmaker,
One or more down stream processing steps prepare sinter and make in the smelting furnace of blast furnace or its alloytype in being included in agglomerating plant
Ferrum.Generally steel and iron manufacturing customer purchase " block " shape iron mine is directly used in blast furnace or the iron mine of " particulate " form is used for agglomerating plant
To produce the charging of blast furnace.Generally, lump iron ores are the iron mines that particle size range is 6-32mm.Generally, particulate iron mine is most
Iron mine of the size range of number granule for 1-6mm.6mm segmentations between block and particulate are random segmentations.Further illustrate,
Containing copper mine and containing in the case of nickel minerals, one or more down stream processing steps may include the flotation step for producing concentrate and subsequently
Concentrate is carried out smelting to produce matte（matte）The step of.Additionally, for containing copper mine and containing nickel minerals, down stream processing steps
May include that the heap to Ore is extracted（Or other kinds of extraction）.
It should be noted that previous paragraphs " the required grade " that refer to be not necessarily intended described in the paragraph
Direct measurement of the method comprising In Grade.The present invention extend to the other specification to indicating as grade carry out it is measured directly
Method.These parameters include, for example, heap density.
The said method of the present invention includes dry separation step and wet separation, and the dry separation step and wet separation are used for processing not
Same Ore stream, is more specifically the Ore stream with different grain size distribution.Therefore, this method is included to one kind
The Ore stream of particle size distribution is implemented dry separation step and implements wet separation to another kind of Ore stream with other particle size distribution
Step.The present invention extends also to be used in combination dry separation step and wet separation to the Ore stream with given particle size distribution, its
In Ore stream is carried out after dry separation step, wet separation is carried out to the output stream from the dry separation step next, instead
It is as the same.
This method may include multiple dry separation steps.
This method may include multiple wet separations.
This method may include the charging for this method is processed in size separation step, obtains at least two and has different grain size
The fraction of scope, and process the fraction in multiple procedure of processings respectively, for the procedure of processing bag of at least one fraction
Include dry separation step.
This method processes the charging for this method in can be included in size separation step, obtain at least two and have different grain size
The fraction of scope, and process the fraction in multiple procedure of processings respectively, the procedure of processing include dry separation step and wet
Select step.
This method processes the charging for this method in can be included in size separation step, obtain at least two and have different grain size
The fraction of scope, and process the fraction in multiple procedure of processings respectively, for the procedure of processing bag of at least one fraction
Dry separation step is included, the procedure of processing at least one fraction includes wet separation.
This method may include the excessive level compared with desired particle size range from size separation step is reduced in pulverising step
The raw materials size for dividing, and the feedstock transportation of size reduction is returned into size separation step.
The a kind of of this method selects to may include to process raw material in size separation step, and production at least has desired particle size model
The fraction for enclosing and the fraction of excessive granularity.
This method may include to process the fraction with desired particle size range, and production in dry separation step with required grain
The fraction of degree scope and required grade.
This method may include the fraction that the excessive granularity from size separation step is processed in wet separation, and production has
The wet fraction and another fraction of required grade.
This method may include other fraction from wet separation are processed in pulverising step, and by the original of size reduction
Material is delivered back into size separation step.
Other fraction from wet separation can be comprising being broken down into more short grained granule, and some of which granule can
Can not carry out with required grade but in wet separation selected.In view of this point, above-mentioned selection is characterized in that pulverising step is
The still excessive raw material of granularity is provided and returns to wet separation and the chance for being processed again in this step, or is served as reasons
There is the raw material of desired particle size range there is provided datatron meeting is carried out in dry separation step in pulverising step.
This method may include to process the wet fraction with required grade, and production in another pulverising step with institute
Need the fraction of particle size range and required grade.
This method it is another be optionally comprised in size separation step in process raw material, and production particulate fraction and in addition with compared with
Oarse-grained fraction.
This method may include other fraction with larger granularity are processed in another size separation step, and production has
The fraction of the fraction of desired particle size range and excessive granularity.
This method may include to process the fraction with desired particle size range, and production in dry separation step with required grain
The fraction of degree scope and required grade.
Described another size separation step can also produce particulate fraction, and the method may include to process in another size separation step
Particulate fraction, produce larger sized particulate fraction and smaller size of particulate fraction, larger sized particulate fraction is added
To in the fraction with desired particle size range and required grade of dry separation step.
This method may include the fraction that the excessive granularity in described another size separation step is processed in pulverising step,
And the feedstock transportation of size reduction is returned to into size separation step.
This method may include the particulate fraction from size separation step is processed in wet separation, and production is with than charging
The selected particulate fraction of the average rank greater degree of the charging into wet separation.
This method may include to process in a series of size separation steps from size separation step particulate fraction and production more than one
Kind particulate fraction, and process in single wet separation or dry separation step each particulate fraction and production with than material to wet
The selected particulate raw material of the average rank greater degree of the charging in choosing or dry separation step.
Above-mentioned other selections of this method are characterized in that the fraction of excessive granularity is broken and return to production particulate fraction
In the size separation step of excessive second fraction.Therefore, the valuable raw material in the reprocessing raw material has the machine being captured
Meeting, itself or be captured as the particulate fraction processed in one or more wet separations, or as in dry separation step
The fraction with desired particle size range for processing is captured.
This has been exploited raw material and may include raw ore raw material（as-mined material）.
This has exploited the exploitation raw material that raw material may include to have laid in.
For example, dry separation step can as averagely count from the regular quality evaluated based on raw material be classified as inferior grade or
The chance of the storage of raw materials weight recovery value of waste material.
As described herein, there is provided to dry separation step exploit raw material may include to be confirmed as can ascending quality original
Material.In the case, mining processes may include the raw material for treating exploitation or exploited the on-hand inventory of raw material to be analyzed to really
Whether the fixed material can lift quality.The analysis may include before exploitation raw material, for example from bulk raw to be exploited as above
Multiple samples, such as drill hole sampling are taken in the lump for stating type, and analyze the sample, for example determine each sample grade, to
Whether the Ore in the big lump ore can lift quality and make evaluation.The analysis also includes multiple samples being taken from the storage of raw materials and being divided
The sample is analysed, for example, is determined the grade of each sample, whether quality can be lifted to the raw material in the storage of raw materials and make evaluation.
It is arbitrary it is given in the case of needed for sample number depend on the factor of the part for being related to particular mine to be exploited or treating quarry.
Dry separation step can determine the original being processed in selection step for selection using any suitable analytical technology
The benchmark of material granule.
For dry separation step a kind of suitable analytical technology be granule dual-energy X-ray analysis, which is in above-mentioned international Shen
It please be described in PCT/AU2009/001179 by way of example.For example, for other analytical technology bags of dry separation step
Include XRF technology, radiation technique, electromagnetic technique, optical technology and photometric technique.These（And other）It is arbitrary in technology
Kind or various suitabilitys depend on the factor of the part for being related to particular mine to be exploited or treating quarry.
Dry separation step can be based on the directly measuring as raw material individual particle grade or the indicative any parameter measured
Analysis carrys out dry separation.
Raw material can be exploited by any suitable recovery method and equipment.For example, can by drilling and explosion from
The lump of mine, will be produced Ore with truck and/or conveyer belt and transport from mine and exploit raw material.Further illustrate,
Can be moved in mine shaft bottom by surface mining machine and exploit raw material, and be transported from mine with truck and/or conveyer belt.
Exploitation raw material can be containing metal or non-metalliferous feed material.The example of metalliferous feed material has iron-stone and the ore deposit for containing
Stone.The example of metalliferous feed material is not coal.
For iron ore, desired particle size range can be the particle size range of " block " shape iron mine or " particulate " iron mine.It is logical
Often, massive iron ore is the iron ore that particle size range is 6-32mm.Generally, particulate iron mine is that the size range of most of granules is
The iron mine of 1-6mm.6mm segmentations between block and particulate are random segmentations.
For copper-containing ore or nickel-containing ore, desired particle size range can be for including flotation step with produce concentrate and
Subsequently to concentrate producing the particle size range of the Downstream processing of matte.Or, desired particle size range can be right for including
Copper-containing ore or nickel-containing ore carry out heap extraction（Or other kinds of extraction）Downstream processing particle size range.
Present invention also offers a kind of choose the method for having exploited raw material and/or the storage of raw materials, the method includes that size separation is walked
Suddenly, the step production at least two has the fraction of different grain size scope, and processes the level in multiple procedure of processings respectively
Point, production each has the fraction of desired particle size range and required grade, and the procedure of processing at least one fraction includes doing
Step is selected, the procedure of processing at least one fraction includes wet separation.
Present invention also offers a kind of method of selection iron mine, the method includes size separation step, step production at least two
Fraction is planted, a kind of fraction has the particle size range needed for massive iron ore, and another kind of fraction has the grain needed for particulate iron ore
Degree scope, and process these fraction in multiple procedure of processings respectively, this is used for the procedure of processing bag of massive iron ore fraction
Dry separation step is included, the procedure of processing for particulate iron ore fraction includes wet separation.
Present invention also offers a kind of method of selection iron mine, the method includes size separation step, step production at least two
The fraction with different grain size scope is planted, these fraction is processed in multiple procedure of processings respectively, at least one fraction
Procedure of processing includes dry separation step, and the procedure of processing at least one fraction includes wet separation and pulverising step, Yi Jisheng
Produce the fraction with particle size range and required grade needed for massive iron ore.
Present invention also offers a kind of method of exploitation raw material such as iron mine, including：
A () exploits raw material, and
B () has exploited raw material or the storage of raw materials according to the selection of above-mentioned picking method.
Ore can be exploited by any suitable recovery method and equipment.For example, can be taken from by drilling, explosion
The lump of mine and Ore will be produced with truck and/or conveyer belt transport and exploitated ore from mine.Further lift
Example, can be moved and exploitated ore in mine shaft bottom by surface mining machine, and be transported from mine with truck and/or conveyer belt.
By way of example and referring to the drawings further describing the present invention, wherein：
Fig. 1 is the example of the division exploiting field conceptual scheme for being used for one section of ore deposit bench in traditional mining processes, and the figure is state
Fig. 1 in the description of border application PCT/AU2009/001364, and
Fig. 2 and Fig. 3 be it is a series of for illustrate sorting of ore method of the present invention some（But it is not limited to these）Embodiment party
The flow chart of case.
Description of the invention is described in the case where exploitation raw material is for iron ore form.It should be noted that the present invention is not
Iron ore is confined to, and is extensible to other exploitation raw materials containing valuable component.The valuable component can be
Metal.Coal is another kind of valuable component.
Fig. 1 is the division exploiting field conceptual scheme of the ore deposit bench 51 in the outdoors iron ore well exploitation as the operation of conventional ore deposit.The party
Case shows a series of drillings 53 bored to gather sample（Represented with decussation）Position.Sample is analyzed to really
The grade of Ore in random sample product.Program figure also show analysis result and be marked with a series of borders 55, and border 55 is by the section
A series of areas 57 are divided into, subregion is to be confirmed as (a) based on ore grade by sample analysis based on the Ore in the area
High-grade, (b) inferior grade still (c) waste material.Six areas 57 are shown in figure.In figure, high-grade area 57 is referred to as " HG ",
Low-grade area is referred to as " LG ", and garbage area is referred to as " W ".It is high-grade and inferior grade between and between inferior grade and waste material
Segmentation can change with the different piece of different ore deposits and ore deposit depending on series of factors.Each area 57 of Ore is quick-fried using explosive
It is broken, sort out from mine, and transport from mine.The grade determination that Ore depends on each area is processed in mine and outside mine.
For example, ettle is used as mining filler, and low grade ore is stored or mixed with high-grade Ore, high-grade Ore according to
Needs are further processed to form sale product.The processing can be wet method or dry method.
In traditional mining processes, low-grade lump is not generally mixed with other Ores, but is stored,
Sale is not used in, therefore represents a large amount of lost economic values.However, being classified as the ore deposit of the previous exploitation of inferior grade raw material
Some or all lumps of stone and stock can be adapted to lift quality according to the present invention, and referring for example to the flow chart of Fig. 2-4
Processed, including dry separation.
As described above, International Application Serial No. PCT/AU2009/001364 describes the alternative for exploiting raw material, which is for ferrum
It is whether quality " can be lifted " based on the Ore for evaluating Ore to be exploited and storage for Ore, whether product can be lifted to Ore
The evaluation of matter is based on many factors.These factors include whether the ore particles can be chosen into higher or lower than threshold value etc.
The granule stream of level.Can be lifted quality Ore include containing higher than threshold levels individual particles and less than threshold levels
The Ore of other granule.It is described evaluation may include assess Ore crush can by ore separation into this kind of individual particles degree.It is whole
In individual granule, the Ore containing finely divided ferrum can not generally lift quality.
The present invention includes using dry-dressing machine, particularly（But it is not restricted to）The to be exploited of " quality can be lifted " can be processed
The Ore of Ore or storage, otherwise described Ore will be classified as the dry-dressing machine of low grade ore based on traditional mining method.
Present invention additionally comprises using wet ore separators（concentrator）, such as wet gravity concentrator and wet magnetic separator.Applicant
It has been found that dry separation and the combination of wet separation --- and combining pulverising step and size separation step --- can provide phase for mining processes
When big motility, a series of products with specification, particularly granularity and grade needed for client are produced.
The flow chart of Fig. 2 and 3 is in the case where Ore is transported to primary breaker 3 and broken background in the crushing machine from mine
It is described.It should be noted that the present invention extends also to the situation that Ore is crushed in mine and chosen.It should also be noted that this
It is bright to extend also to the situation that the Ore is storage Ore.The Ore can be the Ore for being be evaluated as " can lift quality "
Or the Ore of tradition exploitation.
Embodiment shown in Fig. 2 and Fig. 3 is a large amount of possible for processing the dry separation step of exploitated ore and wet separation
Two examples in the combination of step.In each embodiment shown in Fig. 2 and Fig. 3, dry separation step and wet separation are distinguished
For processing different Ore streams, more specifically, the Ore stream with different particle size distribution.The present invention can also expand
Open up and dry separation step and wet separation are used in combination to the Ore stream with given particle size distribution, wherein carrying out to Ore stream
After dry separation step, wet separation is carried out to the output stream from dry separation step next, vice versa.
With reference to Fig. 2, the Jing breaking ores from primary breaker 3 enter scalping screen 5, for example, are the form of vibrosieve, scalping screen
The second fraction excessively of the 5 excessive second fractions and -75mm that Ore is divided into+75mm based on granularity.
Excessive second fraction from scalping screen 5 is transported to intermediate crusher 7, after crushing, is transported back in the crushing machine
In the stream of primary breaker 3.
Second fraction of crossing from scalping screen 53 is transported to the scalping screen 9 in downstream, for example, the form of vibrosieve, slightly
Ore is divided into grain sieve 9 fraction of the excessive second fraction of 32-75mm and another kind of size of -32mm based on granularity.
The product sieve 11 in downstream, for example, form of vibrosieve are transported to from -32mm the size fractions of scalping screen 9,
Ore is divided into product sieve 11 the product fraction of the particulate fraction and 8-32mm of -8mm based on granularity.
Product fraction from product sieve 11 is at least product fraction for particle size distribution.It should be understood that indication in the application
" product fraction " itself to be not representing the fraction be the form for being adapted to customer specification.
Dry type ore deposit is transported to from the product fraction of product sieve 11 selects machine 15, granule to put down based on the ore grade of granule
Composition is chosen into two kinds of streams.Separator 15（Machine is selected with other ore deposits described below）Can be analyzed with dual-energy x-ray
Technology or other suitable analytical technologies are determining the separator of the grade of Ore.The present invention is can be extended to using other kinds of
Dry-dressing machine.A kind of fraction that machine 15 is selected from ore deposit --- being referred to as " block " in figure --- is higher than threshold value ore grade comprising concentration of iron
（Such as 63 weight % ferrum）Ore.The fraction is required product fraction for particle size distribution and component, and define can
Sale product can mix to produce the product that can sell product with other Ore streams.Another kind selects the level of machine 15 from ore deposit
Point --- in figure referred to as " waste residue " --- comprising concentration of iron less than threshold value ore grade（Such as 63 weight % ferrum）Ore.Should
Fraction is transported at storage, for example, be used as land fill.It should be noted that threshold value ore grade can be any suitable etc.
Level, the invention is not limited in 63 weight % ferrum.
From the excessive second fraction of scalping screen 9, i.e. 32-75mm fraction, wet ore separators 13, wet ore separators 13 are transported to
Concentrate fraction of the production with required product hierarchy and mine tailing fraction.Required product hierarchy can be any suitable etc.
Level.
Mine tailing fraction from wet ore separators 13 is transported to intermediate crusher 7, after crushing, is transported in the crushing machine
From in the stream of primary breaker 3.
Dehydration is carried out from the concentrate fraction of wet ore separators 13 and is then sent to intermediate crusher 17, particle size distribution is broken into for 8-
The product of 32mm.It is the product fraction with desired particle size distribution and grade from the output of crushing machine 17.
With reference to Fig. 3, there is very big similarity between the flow chart in flow chart and Fig. 2 in Fig. 3, therefore use identical
Label describes identical feature.
Jing breaking ores from primary breaker 3 enter scalping screen 5, for example, are the form of vibrosieve, and scalping screen 5 is based on grain
Spend the second fraction excessively of excessive second fraction and -75mm that Ore is divided into+75mm.
Excessive second fraction from scalping screen 5 is transported to intermediate crusher 7, after crushing, is transported back in the crushing machine
In the stream of primary breaker 3.
Second fraction of crossing from scalping screen 53 is transported to the scalping screen 9 in downstream, for example, the form of vibrosieve, slightly
Ore is divided into grain sieve 9 second fraction excessively of the excessive second fraction and -8mm of 8-75mm based on granularity.
Second fraction of crossing from scalping screen 9 is particulate stream, and which is transported for further size separation and for each
The wet process of size fraction.
More specifically, the particulate stream from scalping screen 9 is transported to particulate sieve 19, is divided into the fraction and 1- of -1mm
The fraction of 8mm.
The fraction of -1mm is transported to particle separator 21, such as cyclone hydraulic separators, is divided into ultra-fine stream and 0.1-1mm
Stream.
The fraction of the fraction and 0.1-1mm of 1-8mm is delivered to wet ore separators 23 and 25 respectively as single stream, at this
Quality is lifted in ore separators.The concentrate for lifting quality from wet ore separators 23 and 25 is formed with the institute for meeting customer's specification
Need the fine particle product of particle size distribution and grade.
Product sieve 19, for example, form of vibrosieve are transported to from the excessive second fraction of scalping screen 9.Product sieve 19
Ore is divided into the product fraction of the excessive second fraction and 8-32mm of 32-75mm based on granularity.
Excessive second fraction from product sieve 19 is transported to intermediate crusher 7, after crushing, is transported back in the crushing machine
In the stream of primary breaker 3.
Product sieve 21, for example, form of vibrosieve are transported to from the product fraction of product sieve 19.Product sieves 21 bases
Ore is divided into the product fraction of 8-32mm and the particulate fraction of -8mm in granularity.
Particulate sieve 19 is transported to from the particulate fraction of product sieve 21.
Dry type ore deposit is transported to from the product fraction of product sieve 21 and selects machine 15, granule based on the ore grade of granule, i.e.
Average composition is chosen into two kinds of fraction.Separator 15（Machine is selected with other ore deposits described below）Can be with dual-energy x-ray point
Analysis technology or any other suitable analytical technology determine Ore by directly measure or by determining the parameter for indicating grade
The separator of grade.As described in above in the embodiment of fig. 2, the present invention is can be extended to using other kinds of dry-dressing machine.
A kind of fraction that machine 15 is selected from ore deposit --- being referred to as " block " in figure --- is higher than threshold value ore grade comprising concentration of iron（Such as 63
Weight % ferrum）Ore.The fraction is required product stream for particle size distribution and component, and defines and can sell product
Product can mix to produce the product that can sell product with other Ore streams.Another kind selects the fraction of machine 15 from ore deposit ---
It is referred to as " waste residue " in figure --- threshold value ore grade is less than comprising concentration of iron（Such as 63 weight % ferrum）Ore.The fraction is transported
Deliver at storage, for example, be used as land fill.
The embodiment above is the example of the multiple possible embodiment for sorting of ore of the invention.Each
Embodiment has specific feature, and this feature can be according to the requirement of specific mining processes but suitable.The present invention can
Extend to a wide range of crushing and other combinations of dry separation and wet separation.
Enforcement that can be on the premise of without departing substantially from spirit and scope of the present invention, to the present invention described in above-mentioned Fig. 2 and Fig. 3
Scheme carries out many improvement.
For example, although the embodiment is included in scalping screen and product sieve, these sieves used in flow chart
Can be any suitable sieve, required size separation in addition can be obtained by any suitable method, be not limited to using sieve.
Although additionally, the embodiment is related to the fraction of specific dimensions, the invention is not restricted to this, but expand to
Ore is divided into into the fraction of any suitable size, for specific ore deposit and the needs of mining processes and Downstream Market.Specifically, should
Note the product size fraction of 8-32mm that the invention is not restricted to describe in the embodiment described in which.
Although additionally, the embodiment is related to the threshold levels of specific 63 weight % ferrum, threshold value ore grade can
To be any suitable grade, the invention is not restricted to 63 weight % ferrum.
Although additionally, the embodiment is directed to use with crushing machine, the invention is not restricted to this, and it is extensible to any
The suitable equipment for being used to reduce raw material granularity.
Claims (48)
1. the method that raw material and/or the storage of raw materials are exploited in selection, the method process raw material and production tool in being included in size separation step
Have desired particle size range fraction and for required product particle size range excessive granularity fraction, in dry separation step locate
The fraction of the reason fraction with desired particle size range and production with desired particle size range and required grade, in wet separation
The wet fraction of the middle fraction for processing the excessive granularity and production with required grade and another kind of fraction, in another crushing step
The wet fraction and another kind of fraction with desired particle size range and required grade of production are processed in rapid.
2. method according to claim 1, reduces the raw materials size of excessive second fraction in being included in pulverising step, and
The feedstock transportation for having been reduced size returns one of size separation step.
3. method according to claim 1, processes the another kind in wet separation in being included in pulverising step
Fraction, and reduced one of feedstock transportation time size separation step of size.
4. method according to claim 1, wherein exploitation raw material includes raw ore raw material.
5. method according to claim 1, wherein exploitation raw material includes the exploitation raw material for having stored.
6. the method according to claim 4 or 5, wherein supply to the exploitation raw material of dry separation step to include being defined as being lifted
The raw material of quality, i.e., described raw ore raw material or the storage of raw materials are can to carry out dry separation to improve the actual or potential economic valency of raw material
The raw material of value.
7. method according to claim 1, wherein dry separation step include dual-energy X-ray analytical technology, x-ray fluorescence skill
In art, radiation technique, electromagnetic technique, optical technology and photometric technique any one or it is more than one.
8. method according to claim 1, wherein exploitation raw material is iron ore, desired particle size range is " bulk " iron ore
Particle size range.
9. method according to claim 8, wherein massive iron ore are the iron ores that particle size range is 6-32mm.
10. method according to claim 1, wherein exploitation raw material is iron ore, desired particle size range is " acinous " ferrum
The particle size range of Ore.
It is 1-6mm that 11. methods according to claim 10, wherein acinous iron ore are the size ranges of most of granule
Iron ore.
12. methods according to claim 1, wherein exploitation raw material is copper-containing ore or nickel-containing ore, desired particle size range
It is the particle size range for Downstream processing, the Downstream processing includes flotation step carries out smelting to concentrate with subsequent to produce concentrate
Refine to produce matte.
13. methods according to claim 1, wherein exploitation raw material is copper-containing ore or nickel-containing ore, desired particle size range
It is the particle size range for including the Downstream processing that heap extraction is carried out to copper-containing ore or nickel-containing ore.
14. selection exploitation raw materials and/or the method for the storage of raw materials, the method processes raw material in being included in size separation step and production is thin
Grade point and another kind of fraction with larger particle, process the fraction with larger particle in another size separation step
With fraction of the production with desired particle size range and the fraction of excessive granularity, process described with desired particle size in dry separation step
The fraction of the fraction of scope and production with desired particle size range and required grade, processes the particulate fraction in wet separation
With the selected particulate fraction of average rank greater degree of the production with the charging than entering to wet separation.
15. methods according to claim 14, reduce the raw materials size of excessive second fraction in being included in pulverising step, and
And reduced one of feedstock transportation time size separation step of size.
16. methods according to claim 14, process described another in wet separation in being included in pulverising step
Fraction is planted, and has been reduced the feedstock transportation of size and return one of size separation step.
17. methods according to claim 14, process excessive second fraction in being included in wet separation, and production has
The wet fraction of required grade and another kind of fraction.
18. methods according to claim 17, process described another in wet separation in being included in pulverising step
Fraction is planted, and has been reduced the feedstock transportation of size and return one of size separation step.
19. methods according to claim 17, process the wet level with required grade in being included in another pulverising step
Point, and produce the fraction with desired particle size range and required grade.
20. methods according to claim 14, wherein exploitation raw material includes raw ore raw material.
21. methods according to claim 14, wherein exploitation raw material includes the exploitation raw material for having stored.
22. methods according to claim 20 or 21, wherein supplying to the exploitation raw material of dry separation step, include being defined as can
The raw material of quality is lifted, i.e., described raw ore raw material or the storage of raw materials are can to carry out dry separation to improve the actual or potential Jing of raw material
The raw material of Ji value.
23. methods according to claim 14, wherein dry separation step include dual-energy X-ray analytical technology, x-ray fluorescence
In technology, radiation technique, electromagnetic technique, optical technology and photometric technique any one or it is more than one.
24. methods according to claim 14, wherein exploitation raw material is iron ore, desired particle size range is " bulk " iron mine
The particle size range of stone.
25. methods according to claim 24, wherein massive iron ore are the iron ores that particle size range is 6-32mm.
26. methods according to claim 14, wherein exploitation raw material is iron ore, desired particle size range is " acinous " ferrum
The particle size range of Ore.
It is 1-6mm that 27. methods according to claim 26, wherein acinous iron ore are the size ranges of most of granule
Iron ore.
28. methods according to claim 14, wherein exploitation raw material is copper-containing ore or nickel-containing ore, desired particle size range
It is the particle size range for Downstream processing, the Downstream processing includes flotation step carries out smelting to concentrate with subsequent to produce concentrate
Refine to produce matte.
29. methods according to claim 14, wherein exploitation raw material is copper-containing ore or nickel-containing ore, desired particle size range
It is the particle size range for including the Downstream processing that heap extraction is carried out to copper-containing ore or nickel-containing ore.
30. selection exploitation raw materials and/or the method for the storage of raw materials, the method processes raw material in being included in size separation step and production is thin
Grade point and another kind of fraction with larger particle, process the fraction with larger particle in another size separation step
With fraction of the production with desired particle size range and the fraction of excessive granularity, process described with desired particle size in dry separation step
The fraction of the fraction of scope and production with desired particle size range and required grade, processes described thin in a series of size separation steps
Grade is divided and produces more than one particulate fraction, and each particulate fraction and life are processed in single wet separation or dry separation step
Produce the selected particulate fraction of the average rank greater degree with the charging in than entering to wet separation or dry separation step.
31. methods according to claim 30, reduce the raw materials size of excessive second fraction in being included in pulverising step, and
And reduced one of feedstock transportation time size separation step of size.
32. methods according to claim 30, process described another in wet separation in being included in pulverising step
Fraction is planted, and has been reduced the feedstock transportation of size and return one of size separation step.
33. methods according to claim 30, process excessive second fraction in being included in wet separation, and production has
The wet fraction of required grade and another kind of fraction.
34. methods according to claim 33, process described another in wet separation in being included in pulverising step
Fraction is planted, and has been reduced the feedstock transportation of size and return one of size separation step.
35. methods according to claim 33, process the wet level with required grade in being included in another pulverising step
Point, and produce the fraction with desired particle size range and required grade.
36. methods according to claim 30, wherein exploitation raw material includes raw ore raw material.
37. methods according to claim 30, wherein exploitation raw material includes the exploitation raw material for having stored.
38. methods according to claim 36 or 37, wherein supplying to the exploitation raw material of dry separation step, include being defined as can
The raw material of quality is lifted, i.e., described raw ore raw material or the storage of raw materials are can to carry out dry separation to improve the actual or potential Jing of raw material
The raw material of Ji value.
39. methods according to claim 30, wherein dry separation step include dual-energy X-ray analytical technology, x-ray fluorescence
In technology, radiation technique, electromagnetic technique, optical technology and photometric technique any one or it is more than one.
40. methods according to claim 30, wherein exploitation raw material is iron ore, desired particle size range is " bulk " iron mine
The particle size range of stone.
41. methods according to claim 30, wherein massive iron ore are the iron ores that particle size range is 6-32mm.
42. methods according to claim 30, wherein exploitation raw material is iron ore, desired particle size range is " acinous " ferrum
The particle size range of Ore.
It is 1-6mm that 43. methods according to claim 42, wherein acinous iron ore are the size ranges of most of granule
Iron ore.
44. methods according to claim 30, wherein exploitation raw material is copper-containing ore or nickel-containing ore, desired particle size range
It is the particle size range for Downstream processing, the Downstream processing includes flotation step carries out smelting to concentrate with subsequent to produce concentrate
Refine to produce matte.
45. methods according to claim 30, wherein exploitation raw material is copper-containing ore or nickel-containing ore, desired particle size range
It is the particle size range for including the Downstream processing that heap extraction is carried out to copper-containing ore or nickel-containing ore.
The method of 46. selection iron ores, the method include the size separation step for producing at least two fraction, and a kind of fraction has bulk
Particle size range needed for iron ore, another kind of fraction have the particle size distribution needed for particulate iron ore, and in multiple processing steps
The fraction is processed respectively in rapid, and the procedure of processing for massive iron ore fraction includes dry separation step, for particulate iron ore
The procedure of processing of fraction includes wet separation.
The method of 47. selection iron ores, the method include the size separation step for producing at least two fraction with different grain size scope
Suddenly, process the fraction in multiple procedure of processings respectively, the procedure of processing at least one fraction includes that dry separation is walked
Suddenly, the procedure of processing at least one fraction includes wet separation and pulverising step, and produces with lump iron ores
The fraction of particle size range and required grade needed for stone.
The method of 48. exploitation raw materials, including：
A () exploits the raw material, and
The picking method of (b) according to any one of claim 1,14 and 30, selection exploitation raw material or the storage of raw materials.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2010904388A AU2010904388A0 (en) | 2010-09-30 | A Method of Sorting Ore | |
| AU2010904388 | 2010-09-30 | ||
| PCT/AU2011/001253 WO2012040787A1 (en) | 2010-09-30 | 2011-09-30 | A method of sorting ore |
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| CN103249912A CN103249912A (en) | 2013-08-14 |
| CN103249912B true CN103249912B (en) | 2017-04-05 |
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| CN (1) | CN103249912B (en) |
| AU (1) | AU2011308090B2 (en) |
| BR (1) | BR112013007588B1 (en) |
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| US20150048009A1 (en) * | 2013-08-19 | 2015-02-19 | Vhip Llc | System and Method For Iron Ore Reclaiming From Tailings Of Iron Ore Mining Operations |
| CN103769370B (en) * | 2014-01-27 | 2016-04-06 | 罗旭 | Anhydrous explosion-proof raw coal separation machine |
| CN104865253A (en) * | 2015-06-19 | 2015-08-26 | 武汉钢铁(集团)公司 | Method for measuring luminosity of copper in iron ore |
| WO2024040282A1 (en) * | 2022-08-23 | 2024-02-29 | Newcrest Mining Limited | Selective processing |
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- 2011-09-30 CA CA2813035A patent/CA2813035C/en active Active
- 2011-09-30 WO PCT/AU2011/001253 patent/WO2012040787A1/en active Application Filing
- 2011-09-30 BR BR112013007588-0A patent/BR112013007588B1/en active IP Right Grant
- 2011-09-30 CN CN201180057637.9A patent/CN103249912B/en active Active
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| US4044956A (en) * | 1975-03-12 | 1977-08-30 | Bureau De Recherches Geologiques Et Minieres | Mechanical method for separating fractions of incinerated urban refuse or similar industrial refuse |
| RU2142348C1 (en) * | 1999-07-01 | 1999-12-10 | Акционерное общество закрытого типа "НПМ" | Method of dry concentration of wollastonite ore |
| EP1372860B1 (en) * | 2001-02-19 | 2006-04-26 | Georg Schons | Facility and method for treating muck containing metal |
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| BR112013007588A2 (en) | 2016-08-02 |
| CN103249912A (en) | 2013-08-14 |
| WO2012040787A1 (en) | 2012-04-05 |
| CA2813035A1 (en) | 2012-04-05 |
| AU2011308090A1 (en) | 2013-05-02 |
| BR112013007588B1 (en) | 2020-03-31 |
| AU2011308090B2 (en) | 2016-01-21 |
| CA2813035C (en) | 2019-08-20 |
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