CN107115959A - The method that packed in gangue micro-fine-grained gold in mine tailing is reclaimed with Nelson's gravitational separation equipment - Google Patents

The method that packed in gangue micro-fine-grained gold in mine tailing is reclaimed with Nelson's gravitational separation equipment Download PDF

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Publication number
CN107115959A
CN107115959A CN201710324543.2A CN201710324543A CN107115959A CN 107115959 A CN107115959 A CN 107115959A CN 201710324543 A CN201710324543 A CN 201710324543A CN 107115959 A CN107115959 A CN 107115959A
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China
Prior art keywords
gold
mine tailing
nelson
normal pressure
under normal
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Pending
Application number
CN201710324543.2A
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Chinese (zh)
Inventor
韩治纬
张鸣昕
池丕华
邢洪波
单丹
任洪胜
商雅文
崔商哲
赵阳
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JILIN HAORONG TECHNOLOGY DEVELOPMENT Co Ltd
JILIN PROV METALLURGICAL INST
JILIN JIEN NICKEL INDUSTRY Co Ltd
Original Assignee
JILIN HAORONG TECHNOLOGY DEVELOPMENT Co Ltd
JILIN PROV METALLURGICAL INST
JILIN JIEN NICKEL INDUSTRY Co Ltd
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Application filed by JILIN HAORONG TECHNOLOGY DEVELOPMENT Co Ltd, JILIN PROV METALLURGICAL INST, JILIN JIEN NICKEL INDUSTRY Co Ltd filed Critical JILIN HAORONG TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201710324543.2A priority Critical patent/CN107115959A/en
Publication of CN107115959A publication Critical patent/CN107115959A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage

Abstract

The method that the present invention reclaims packed in gangue micro-fine-grained gold in mine tailing with Nelson's gravitational separation equipment, belongs to and utilizes field containing golden mine tailing valuable metal recovery, specific as follows:By containing golden mine tailing ore pulp by granular mass degree >=60% that ball mill ore grinding to granularity is 200 mesh, then will be levigate after feed continuous variable ore discharge type Knelson concentrator containing golden mine tailing ore pulp and carry out gravity treatment;Treating capacity is the 50%~80% of selected Knelson concentrator model minimum treat amount;Fluidization water is using the medium relatively low value of Knelson concentrator design reference value scope and keeps stable;Gravity value 60G~120G.According to grade containing gold from gold tailings, the difference of occurrence status, when the Gold Concentrate under Normal Pressure obtained through Nelson's gravity treatment does not reach qualified Gold Concentrate under Normal Pressure quality standard, increase one or many table concentrations, method of the invention can realize more than gold grade 30g/t, the rate of recovery more than 50%.

Description

The method that packed in gangue micro-fine-grained gold in mine tailing is reclaimed with Nelson's gravitational separation equipment
Technical field
The invention belongs to utilize field containing golden mine tailing valuable metal recovery, and in particular to one kind utilizes Nelson's gravitational separation equipment The method for reclaiming packed in gangue micro-fine-grained gold in mine tailing.
Background technology
With the increasingly reduction for easily selecting gold ore resource in the world, recovery gold mineral seems more and more heavier from containing golden mine tailing Will.But it is most of to be wrapped in for micro-fine-grained gold in gangue mineral due to the gold mineral in mine tailing, so always can not be good Use.Golden distinguishing feature in mine tailing, is exactly that gold is mainly wrapped up in mine tailing in micro-size fraction (< 0.037mm), parcel It is in microfine that the gangue majority of gold mineral, which is also,.These micro-fine-grained golds are superfine due to granularity, and by quartzy packed in gangue, substantially without Method is reclaimed by Cyanide Leaching or floatation process.
The micro-fine-grained gold that containing golden mine tailing substantially belongs to quartzy packed in gangue of most of the China without value, therefore tail The micro-fine-grained gold of packed in gangue is a kind of to reclaim potentiality very big synthetical recovery raw material in ore deposit.By reclaiming the gold in mine tailing, Realize that Economic Effects in Mine Enterprices is maximized.
It is to increase a kind of effective ways of benefit to carry out processing to mine tailing with gravity separation method and reclaim gold, but this traditional gravity treatment is set Only the mine tailing effect thicker to degree containing goldc grains substantially, is not suitable for but in mine tailing by the micro-fine-grained gold of packed in gangue standby and method The recovery of mineral.
Domestic traditional gravity separation method carries out processing to flotation tailing and reclaims the golden equipment majority used for spiral chute, shakes Bed, the equipment such as jigging, the principle that these equipment reclaim gold is all the difference using gold mineral with the natural proportion of refuse compartment, by certainly Right centrifugal action, inertia difference are sorted, and the ore dressing for thick, middle grain mineral can reach gratifying index, but for The mine tailing reselection efficiency of the gold of packed in gangue containing microfine is not then good.
Therefore being needed badly among prior art wants a kind of new technical scheme to solve this problem.
The content of the invention
It is an object of the invention to provide the side that a kind of use Nelson gravitational separation equipment reclaims packed in gangue micro-fine-grained gold in mine tailing Method, the micro-fine-grained gold mineral to solve packed in gangue in mine tailing are difficult to be sorted problem in natural gravitational field, by using Nelson's gravitational separation equipment is reclaimed in mine tailing by the micro-fine-grained gold of packed in gangue, can be good at reclaiming the major part in discarded tailing Gold mineral, makes easily to select the problem of gold ore resource is increasingly reduced to be buffered.
To reach above-mentioned purpose, the technical scheme that the present invention takes is:
Step 1: ore grinding
Granular mass degree >=60% of the ball mill ore grinding to granularity for -200 mesh will be passed through containing golden mine tailing ore pulp;
Step 2: Nelson's gravity treatment
Gravity treatment will be carried out containing golden mine tailing pulp conveying to Knelson concentrator after the processing of step one ore grinding, obtain Gold Concentrate under Normal Pressure With Nelson's mine tailing, and Gold Concentrate under Normal Pressure gold grade be less than 30g/t when enter under one of table concentration process;
Set Nelson's gravity separation technology parameter:Treating capacity be selected Knelson concentrator minimum treat amount 50%~ 80%;Fluidization water is less than selected Knelson concentrator fluidization water term of reference median and kept constant;Gravity For 60G~120G;
Step 3: table concentration
The Gold Concentrate under Normal Pressure that step 2 is obtained uses table concentration, finally causes Gold Concentrate under Normal Pressure gold grade to reach more than 30g/t.
The Knelson concentrator is continuous variable ore discharge type Knelson concentrator.
By above-mentioned design, the present invention can bring following beneficial effect:Nelson's gravity separation technology sorting of the present invention The Gold Concentrate under Normal Pressure gone out, is to obtain qualified Gold Concentrate under Normal Pressure gold grade to greatest extent in the case where considering the rate of recovery, using Neil of the present invention Gloomy gravitational separation equipment is reclaimed in mine tailing by the micro-fine-grained gold technique of packed in gangue, can be good at reclaiming the major part in discarded tailing Gold mineral, makes easily to select the problem of gold ore resource is increasingly reduced to be buffered.According to grade containing gold from gold tailings, the difference of property, Buddhist nun When Ademilson concentrate does not reach Gold Concentrate under Normal Pressure quality standard, increase one or many table concentrations, more than gold grade 30g/t can be achieved, The rate of recovery more than 50%.
Brief description of the drawings
Fig. 1 reclaims the method technological process of packed in gangue micro-fine-grained gold in mine tailing for the present invention with Nelson's gravitational separation equipment Figure.
Embodiment
In order to further appreciate that the present invention, the preferred embodiments of the invention are described with reference to embodiment, but It is it should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention rather than to patent requirements of the present invention Limitation.
It refer to shown in Fig. 1, use Nelson gravitational separation equipment proposed by the present invention reclaims packed in gangue micro-fine-grained gold in mine tailing Method, be that will carry out fine grinding containing golden mine tailing ore pulp, then will be after fine grinding feed Knelson concentrator, Buddhist nun containing golden mine tailing ore pulp Ademilson gravity concentrate enters the reuse adoption process of table concentration.
Knelson concentrator shows the detailed ginseng of Knelson concentrator product equipped with operation instructions on operation instructions Number:Such as Knelson concentrator model, the treating capacity term of reference value of Knelson concentrator, fluidization water term of reference value;
Because Nelson's enrichment cone product is fixed, treating capacity and fluidization water are bigger, and Gold Concentrate under Normal Pressure yield is smaller, Gold Concentrate under Normal Pressure Grade is higher, i.e. the too high influence Gold Concentrate under Normal Pressure rate of recovery for the treatment of capacity, the too low influence Gold Concentrate under Normal Pressure gold grade for the treatment of capacity, and fluidization water is too The Gold Concentrate under Normal Pressure rate of recovery can be influenceed soon, and fluidization water is too slow then to influence Gold Concentrate under Normal Pressure gold grade, processing of the present invention to Nelson Amount and fluidization water have strict demand, by adjusting the size of Gold Concentrate under Normal Pressure yield, can control the grade of Gold Concentrate under Normal Pressure.The present invention exists Treating capacity is the 50%~80% of selected Knelson concentrator model minimum treat amount in Nelson's reuse adoption process, should not be according to Buddhist nun The default treating capacity production of Ademilson ore separators, fluidization water uses the medium relatively low value of Knelson concentrator design reference value scope And keeping stable, gravity value takes 60G~120G.The Knelson concentrator is a kind of continuous variable ore discharge type Nelson's ore dressing Machine, the size of Gold Concentrate under Normal Pressure yield can be adjusted at any time, Gold Concentrate under Normal Pressure is continuously discharged.The technological process, when Nelson's concentrate gold grade When not reaching acceptable quality, it need to be carried out using shaking table one or many selected.
The Gold Concentrate under Normal Pressure that Nelson's gravity separation technology of the present invention is sub-elected, is obtained to greatest extent in the case where considering the rate of recovery Qualified Gold Concentrate under Normal Pressure gold grade.Its principle is big and the small mineral of density the gravity difference quilt of density in the reinforcing gravitational field of high power Greatly amplify, this to be more prone in the segregation ratio natural gravitational field between weight mineral;And particular design is material bed Holding structure, under the interaction of fluidization water and hindered settling, can be continuously kept loose condition (of surface).In above-mentioned condition Under, heavy suite can replace the position that light mineral particle occupies in bed is sorted and remain, and light mineral particle is then Discharged as mine tailing, so as to realize mineral grain by density separation.
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
1) synthetical recovery is as follows containing golden mine tailing property:
The grade of mineral containing gold from gold tailings is based on particulate (0.037-0.01mm), particulate (﹤ 0.01mm) level, the tax of gold mineral State is deposited based on packed in gangue, is more than 0.7g/t containing gold grade in golden mine tailing, normal reselection equipment can not reclaim containing for gold Golden mine tailing can use equipment of the present invention and technological parameter.
2) containing golden recovery process operation in golden mine tailing
(1) ore grinding:It will be contained containing golden mine tailing ore pulp by ball mill ore grinding to granularity for the granular mass percentage of -200 mesh Amount >=60%.
(2) Nelson's gravity treatment:Then continuous variable ore discharge type Nelson's ore dressing is fed after will be levigate containing golden mine tailing ore pulp Machine carries out re-selection procedure;Handle Knelson concentrator model minimum treat amount selected by measuring 50%~80% is produced;Stream State water is using the medium relatively low value of Knelson concentrator design reference value scope and keeps stable;Gravity value 60G~120G.Root According to grade containing gold from gold tailings, the difference of occurrence status, when the Gold Concentrate under Normal Pressure obtained through Nelson's gravity treatment does not reach qualified aurin mineral During amount standard, increase one or many table concentrations, more than gold grade 30g/t, the rate of recovery more than 50% can be achieved.
Embodiment 1
Experiment gravitational separation equipment used is KC-MD3 type Knelson concentrators, and this beneficiation test reselection conditions is:Gravity value Take 60G, sample 4kg, reselection time 8min, fluidization water 3.5L/min, mine-supplying quantity (treating capacity) 0.5kg/min, treating capacity For the 66% of equipment minimum treat amount.
The 1.50g/t of grade containing gold from gold tailings used, based on the micro-fine-grained gold of packed in gangue, will contain golden mine tailing ore pulp and pass through Ball mill ore grinding to granularity is -200 mesh 65%, by technological process of the present invention and Nelson's design parameter, final to obtain Gold Concentrate under Normal Pressure gold grade 64.53g/t, the rate of recovery 59.39%.And the ore is reclaimed using normal reselection equipment, Gold Concentrate under Normal Pressure gold grade Only 7.36g/t, cannot get qualified Gold Concentrate under Normal Pressure.
Embodiment 2
Experiment gravitational separation equipment used is KC-MD3 type Knelson concentrators, and this beneficiation test reselection conditions is:Gravity value Take 80G, sample 4kg, reselection time 6min, fluidization water 3.0L/min, mine-supplying quantity (treating capacity) 0.67kg/min, treating capacity For the 80% of equipment minimum treat amount.When the Gold Concentrate under Normal Pressure obtained through Nelson's gravity treatment does not reach qualified Gold Concentrate under Normal Pressure quality standard, Primary cleaning is carried out using shaking table.
The 0.73g/t of grade containing gold from gold tailings used, based on the micro-fine-grained gold of packed in gangue, will contain golden mine tailing ore pulp and pass through Ball mill ore grinding to granularity is -200 mesh 72%, by technological process of the present invention and Nelson's design parameter, final to obtain Gold Concentrate under Normal Pressure gold grade 30.57g/t, the rate of recovery 51.84%.And the ore is reclaimed using normal reselection equipment, Gold Concentrate under Normal Pressure gold grade Only 4.32g/t, cannot get qualified Gold Concentrate under Normal Pressure.
The explanation of above example is only intended to the method and its core concept for helping to understand the present invention.It should be pointed out that pair , under the premise without departing from the principles of the invention, can also be to present invention progress for those skilled in the art Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.To disclosed implementation The described above of example, enables professional and technical personnel in the field to realize or using the present invention.A variety of modifications to these embodiments It will be apparent for those skilled in the art, generic principles defined herein can not depart from this In the case of the spirit or scope of invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to illustrated herein These embodiments, and be to fit to the most wide scope consistent with features of novelty with principles disclosed herein.

Claims (2)

1. the method for packed in gangue micro-fine-grained gold in mine tailing is reclaimed with Nelson's gravitational separation equipment, it is characterized in that:Comprise the following steps,
Step 1: ore grinding
Granular mass degree >=60% of the ball mill ore grinding to granularity for -200 mesh will be passed through containing golden mine tailing ore pulp;
Step 2: Nelson's gravity treatment
Gravity treatment will be carried out containing golden mine tailing pulp conveying to Knelson concentrator after the processing of step one ore grinding, obtain Gold Concentrate under Normal Pressure and Buddhist nun Ademilson mine tailing, and Gold Concentrate under Normal Pressure gold grade be less than 30g/t when enter under one of table concentration process;
Set Nelson's gravity separation technology parameter:Treating capacity is the 50%~80% of selected Knelson concentrator minimum treat amount;Stream State water is less than selected Knelson concentrator fluidization water term of reference median and kept constant;Gravity be 60G~ 120G;
Step 3: table concentration
The Gold Concentrate under Normal Pressure that step 2 is obtained uses table concentration, finally causes Gold Concentrate under Normal Pressure gold grade to reach more than 30g/t.
2. the method that use Nelson gravitational separation equipment according to claim 1 reclaims packed in gangue micro-fine-grained gold in mine tailing, its It is characterized in:The Knelson concentrator is continuous variable ore discharge type Knelson concentrator.
CN201710324543.2A 2017-05-10 2017-05-10 The method that packed in gangue micro-fine-grained gold in mine tailing is reclaimed with Nelson's gravitational separation equipment Pending CN107115959A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109550586A (en) * 2018-11-28 2019-04-02 长春黄金研究院有限公司 A kind of sulfur-bearing gold ore containing particle comprehensive recovering process
CN110292990A (en) * 2019-07-11 2019-10-01 河南省岩石矿物测试中心 A method of improving the rate of recovery and beneficiating efficiency of gold
CN111495578A (en) * 2020-04-13 2020-08-07 内蒙古金陶股份有限公司 Method for recovering heavy sand containing monomer gold from middling and/or tailings of gold ore shaking table
CN111632745A (en) * 2020-04-28 2020-09-08 西北矿冶研究院 Mineral processing technology for cracked rock type copper oxide tin ore
CN112657670A (en) * 2020-12-04 2021-04-16 东北大学 Beneficiation method for recovering polymetallic from gold-containing gravity separation tailings

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CN104148167A (en) * 2014-08-06 2014-11-19 哈巴河金坝矿业有限公司 Reselection recovery method and device for gold
CN104307626A (en) * 2014-10-13 2015-01-28 中国瑞林工程技术有限公司 Dressing technology for recycling ultra-low-level gold ore
CN104846195A (en) * 2015-05-15 2015-08-19 西北矿冶研究院 Method for recovering low-grade precious metals from mineral dressing tailings
CN105797841A (en) * 2014-12-29 2016-07-27 北京有色金属研究总院 Beneficiation process for increasing recovery rate of gold of refractory gold ores

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688802A (en) * 2012-06-11 2012-09-26 中国瑞林工程技术有限公司 Size mixing and reselecting technology
CN104148167A (en) * 2014-08-06 2014-11-19 哈巴河金坝矿业有限公司 Reselection recovery method and device for gold
CN104307626A (en) * 2014-10-13 2015-01-28 中国瑞林工程技术有限公司 Dressing technology for recycling ultra-low-level gold ore
CN105797841A (en) * 2014-12-29 2016-07-27 北京有色金属研究总院 Beneficiation process for increasing recovery rate of gold of refractory gold ores
CN104846195A (en) * 2015-05-15 2015-08-19 西北矿冶研究院 Method for recovering low-grade precious metals from mineral dressing tailings

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109550586A (en) * 2018-11-28 2019-04-02 长春黄金研究院有限公司 A kind of sulfur-bearing gold ore containing particle comprehensive recovering process
CN110292990A (en) * 2019-07-11 2019-10-01 河南省岩石矿物测试中心 A method of improving the rate of recovery and beneficiating efficiency of gold
CN111495578A (en) * 2020-04-13 2020-08-07 内蒙古金陶股份有限公司 Method for recovering heavy sand containing monomer gold from middling and/or tailings of gold ore shaking table
CN111632745A (en) * 2020-04-28 2020-09-08 西北矿冶研究院 Mineral processing technology for cracked rock type copper oxide tin ore
CN112657670A (en) * 2020-12-04 2021-04-16 东北大学 Beneficiation method for recovering polymetallic from gold-containing gravity separation tailings
CN112657670B (en) * 2020-12-04 2022-04-01 东北大学 Beneficiation method for recovering polymetallic from gold-containing gravity separation tailings

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