CN109894257A - A kind of method of comprehensive utilization of spodumene ore dressing - Google Patents

A kind of method of comprehensive utilization of spodumene ore dressing Download PDF

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Publication number
CN109894257A
CN109894257A CN201910241879.1A CN201910241879A CN109894257A CN 109894257 A CN109894257 A CN 109894257A CN 201910241879 A CN201910241879 A CN 201910241879A CN 109894257 A CN109894257 A CN 109894257A
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spodumene
hydrocyclone
vibrating screen
screening
magnetic
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CN109894257B (en
Inventor
饶宇欢
熊大和
陈禄政
李泽萍
黄会春
李华
任祥君
王勇平
陈剑
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Ganzhou Jinhuan magnetic separation technology and Equipment Co.,Ltd.
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SLON MAGNETIC SEPARATOR Ltd
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Abstract

The invention discloses a kind of method of comprehensive utilization of spodumene ore dressing, this method is using jaw crusher-gyratory crusher-high-pressure roller mill combination, and realize that the granularity of mineral roughing controls with the mode of linear vibrating screen composition local closed loop crushing circuit, after with slurry to the material after high pressure roller mill again, pass through straight-line oscillation sieve classification-heavymedia separation-magnetic separation, ore grinding and classification are carried out later, and gravity treatment is carried out using spiral shell spiral chute and shaking table and is classified, and machinery iron and magnetic mineral are successively removed using drum magnetic separator and vertical ring pulsation intensity magnetic separator, final recycling mica, spodumene rough concentrate, spodumene concentrate, tantalum niobium and feldspar.Method of the invention is not limited by production scale, efficient ore dressing not only has been carried out to spodumene mineral, and has all been carried out by reasonable recycling, while having kept tailings discharging amount small for other valuable mineral ingredient micas, tantalum niobium, the feldspar in mineral, reach the comprehensive utilization of high value.

Description

A kind of method of comprehensive utilization of spodumene ore dressing
Technical field
The invention belongs to the technical fields of spodumene ore dressing, and in particular to a kind of method of comprehensive utilization of spodumene ore dressing.
Background technique
Spodumene is mainly one of the mineral containing lithium, also known as 2 type spodumenes, is the main original as lithium chemicals Material, is widely used in lithiumation work, glass, ceramic industry, enjoys the good reputation of " industrial monosodium glutamate ".In recent years, with lithium electricity industry Fast development, the demand of elemental lithium also increasingly increase, and the ore dressing containing lithium minerals is also increasingly by everybody concern, wherein with Spodumene ore dressing is most representative.But by having the study found that different experts have nothing in common with each other to the concern direction of spodumene ore dressing Lay particular emphasis on floating agent, some then lays particular emphasis on technique, and also some then pays close attention to the processing of tailing, but research all exist substantially it is larger Locality, moreover, by production scale limit the mineralogical composition in spodumene mineral can not be carried out it is comprehensively efficient utilize, this Sample can generate great waste, meanwhile, the waste of generation is also very much, it is difficult to reach the comprehensive utilization of high value.
Summary of the invention
(1) technical problems to be solved
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of method of comprehensive utilization of spodumene ore dressing, Method of the invention is not limited by production scale, has not only carried out efficient ore dressing to spodumene mineral, and to its in mineral Its valuable mineral ingredient mica, tantalum niobium, feldspar have all carried out reasonable recycling, while having kept tailings discharging amount small, reach The comprehensive utilization of high value.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides the method for comprehensive utilization of such a spodumene ore dressing, tools Body step are as follows:
Step 1: broken-screening;Spodumene raw ore is subjected to coarse crushing by jaw crusher, and by 1# linear vibrating screen It is sieved, so that the oversize of screening is back to gyratory crusher and carry out two-stage crushing, and make gyratory crusher and 1# straight line Later, 1# linear vibrating screen is sieved to be thoroughly crushed to spodumene raw ore for vibrating screen composition crushing and screening closed circuit flow The undersize divided feeds the roller mill screening closed circuit flow being made of high-pressure roller mill and 2# linear vibrating screen, 2# linear vibrating screen The undersize of screening enters next step;
Step 2: slurrying-classification;Add water and stir slurrying to the undersize of 2# linear vibrating screen screening, and with pumping It send to hydraulic classifier, is mica crude product after the dehydration of hydraulic classifier overflow portion, and underflow part enters next step;
Step 3: screening-heavymedia separation-magnetic separation;Hydraulic classifier underflow part is fed into 3# linear vibrating screen, to 3# The oversize of linear vibrating screen screening feeds heavy medium cyclone, so that heavy medium cyclone underflow part is entered vertical ring pulsation high Magnetomechanical is carried out except iron in gradient, and non-magnetic product is spodumene rough concentrate, and magnetic product and heavy medium cyclone overflow part Divide and enters next step together;
Step 4: ore grinding-classification;Magnetic product is fed ball mill together with heavy medium cyclone overflow portion to grind Mine, and produced under the sieve for making ball mill and 4# linear vibrating screen form grind grading closed circuit flow, and sieve 4# linear vibrating screen Product and the undersize of 3# linear vibrating screen screening enter 1# hydrocyclone together and are classified;
Step 5: gravity treatment-classification;1# hydrocyclone underflow part is passed sequentially through, weight is carried out by spiral chute and shaking table Choosing, obtains tantalum-niobium concentrate, and gravity tailings then feeds 2# hydrocyclone and is classified again, makes 2# hydrocyclone bottom point It is flow back into ball mill, 2# hydrocyclone overflow portion enters next step;
Step 6: magnetic separation-desliming;The merging of the overflow portion of 1# hydrocyclone and 2# hydrocyclone is successively fed into cylinder Formula magnetic separator and pulsating high gradient magnetic separator with vertical ring carry out magnetic separation, so that non-magnetic product is entered 3# hydrocyclone and carry out desliming, 3# cyclone overflow portion enters thickening pond together with magnetic product and is concentrated, and tailing carries out dry row's processing, 3# hydraulic cyclone Device underflow part enters next step;
Step 7: flotation-concentration-dehydration;Flotation carried out to the hydrocyclone underflow part 3#, concentrate that flotation obtains and Tailing passes through thickening pond respectively and is concentrated, and recycles filter press to carry out filters pressing later, respectively obtains spodumene concentrate and feldspar Concentrate.
(3) beneficial effect
Technical solution of the present invention compared with the beneficiation method of traditional spodumene, the beneficial effects of the present invention are:
Technical solution of the present invention is started with from the mineral composition ingredient and mineralogical property of spodumene, to the ore dressing stream of spodumene Journey and technique have carried out breakthrough optimization, make its not only can lithia in high efficiente callback spodumene mineral, and to lithium brightness Other mineralogical compositions in stone ore object can be recycled reasonably;Meanwhile reasonable peace is carried out to process therein Row, the waste for generating it is few, and is not limited by production scale, and utilizing to the exploitation of spodumene mineral has wide application Prospect.
Technical solution of the present invention is combined in step 1 using jaw crusher-gyratory crusher-high-pressure roller mill, And realize that the granularity of mineral roughing controls with the mode of linear vibrating screen composition local closed loop crushing circuit, such process is simple, Treating capacity is big;In step 2, after with slurry to the material after high pressure roller mill, hydraulic classifier is directlyed adopt to recycle mica, in fact Now " early lose can be lost ";In step 3, ring is stood using heavymedia separation-by straight-line oscillation sieve classification, to sieve upper crude product The combination of magnetomechanical in pulsation combines the iron removal by magnetic separation and hydraulic classifier of magnetomechanical in vertical ring pulsation by heavymedia separation, It realizes the recycling of spodumene rough concentrate and mica rough concentrate respectively, collects spodumene rough concentrate in advance, realizing " can receive morning Receive ", reduce the treating capacity of late stage process, beneficiation cost is greatly saved;In step 4, hydraulic cyclone is used after ore grinding Device graded desliming, spiral chute roughing, table concentration, obtains tantalum-niobium concentrate;Step 5: utilizing spiral chute in six and seven Recycling tantalum niobium is combined with shaking table, before flotation, then carries out desliming, and successively using drum magnetic separator and vertical ring pulsation intensity magnetic separator Machinery iron and magnetic mineral are removed, as flotation creates good working environment, reduce the consumption of floating agent, also protect It is not influenced simultaneously, using the technique of the strong magnetic-flotation of weak magnetic-, to come by ore pulp Chinese medicine and pH value when having demonstrate,proved magnetic separator work Realize the content of the recycling of lithia and iron oxide in feldspar in spodumene, it is final to realize recycling mica, spodumene rough concentrate, lithium The purpose of pyroxene concentrate, tantalum niobium and feldspar, and resource is realized directly as feldspar product after the Tailing thickening dehydration after flotation Comprehensive utilization.
In addition, the present invention is not limited by production scale, efficient ore dressing not only is carried out to spodumene mineral, and to mineral In other valuable mineral ingredient micas, tantalum niobium, feldspar all carried out reasonable recycling, while having kept tailings discharging amount small, The comprehensive utilization of high value is reached.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below to this Technical solution in invention specific embodiment carries out clear, complete description, with the present invention is further explained, it is clear that retouched The specific embodiment stated is only a part of embodiment of the invention, rather than whole patterns.
Present embodiment is the method for comprehensive utilization of spodumene ore dressing, specific steps are as follows:
1, it is crushed-screening: spodumene raw ore being crushed to 80mm or less by jaw crusher, utilizes 1# linear vibrating screen It sieves (sieve pore 30mm), oversize returns to gyratory crusher and carries out two-stage crushing, by gyratory crusher and linear vibrating screen Crushing and screening closed circuit flow is formed, undersize is fed to be made of high-pressure roller mill and 2# linear vibrating screen (sieve pore 3.5mm) Roller grind-sieve closed circuit flow, undersize enters downstream;
2, slurrying-classification: adding water and stirring slurrying for undersize, with being pumped to hydraulic classifier, hydraulic classifier overflow Part is mica crude product after vibrating screen is dehydrated, and underflow enters downstream;
3, screening-heavymedia separation-magnetic separation: feeding 3# linear vibrating screen (sieve pore 0.5mm) for hydraulic classifier underflow, Oversize feeds heavy medium cyclone (dense media uses ferrosilicon) and carries out heavymedia separation, and heavy medium cyclone underflow enters Magnetomechanical removes iron in vertical ring pulsating high gradient, and non-magnetic product is spodumene rough concentrate, magnetic product and heavy medium cyclone overflow Enter downstream together;
4, ore grinding-classification: magnetic product feeds ball mill ore grinding together with heavy medium cyclone overflow, and ball mill is straight with 4# Linearly coupled sieves (sieve pore 0.5mm) and forms ore grinding-classification closed circuit flow, the undersize one of undersize and 3# linear vibrating screen It rises and enters 1# hydroclone classification;
5, gravity treatment-classification: 1# hydrocyclone underflow passes sequentially through spiral chute-table concentration, obtains tantalum-niobium concentrate;Weight It selects tailing to feed 2# hydrocyclone and carries out re-grading, 2# hydrocyclone underflow returns to ball mill, and overflow enters downstream;
6, magnetic separation-desliming;The overflow merging of 1# hydrocyclone and 2# hydrocyclone successively feeds half adverse current type cartridge type Magnetic separator (magnetic field 3000Gs), pulsating high gradient magnetic separator with vertical ring (background lectromagnetism field 1.3T) carry out magnetic concentration working, non magnetic Product enters 3# hydrocyclone desliming, and 3# cyclone overflow (i.e. part containing mud) enters thickening pond together with magnetic product, dense Tailing dry row processing is carried out after contracting;3# hydrocyclone underflow enters downstream;
7, flotation-concentration-dehydration: 3# hydrocyclone underflow is subjected to flotation, the concentrate and tailings of flotation pass through respectively Thickening pond concentration obtains spodumene concentrate and feldspar concentrate respectively after filter press filters pressing.
Certain spodumene mine is studied with this method, products obtained therefrom Contents of Main Components and purposes are as follows:
The foregoing describe technical characteristics of the invention and basic principle and associated advantages, for those skilled in the art For, it is clear that the present invention is not limited to the details of above-mentioned exemplary embodiment, and without departing substantially from design of the invention or In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action Above-mentioned specific embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims and It is not that above description limits, it is intended that all changes that come within the meaning and range of equivalency of the claims are included In the present invention.
Although not each embodiment is only in addition, it should be understood that this specification is described according to each embodiment It contains an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art answer When considering the specification as a whole, the technical solution in each embodiment may also be suitably combined to form art technology The other embodiments that personnel are understood that.

Claims (1)

1. a kind of method of comprehensive utilization of spodumene ore dressing, which is characterized in that specific steps are as follows:
Step 1: broken-screening;Spodumene raw ore is subjected to coarse crushing by jaw crusher, and is carried out by 1# linear vibrating screen Screening makes the oversize of screening be back to gyratory crusher and carries out two-stage crushing, and makes gyratory crusher and 1# straight-line oscillation Screen banks is at crushing and screening closed circuit flow, to be thoroughly crushed to spodumene raw ore, later, 1# linear vibrating screen is sieved Undersize feeds the roller mill screening closed circuit flow being made of high-pressure roller mill and 2# linear vibrating screen, the screening of 2# linear vibrating screen Undersize enter next step;
Step 2: slurrying-classification;Add water and stir slurrying to the undersize of 2# linear vibrating screen screening, and with being pumped to Hydraulic classifier is mica crude product after the dehydration of hydraulic classifier overflow portion, and underflow part enters next step;
Step 3: screening-heavymedia separation-magnetic separation;Hydraulic classifier underflow part is fed into 3# linear vibrating screen, to 3# straight line The oversize of vibrating screen screening feeds heavy medium cyclone, and heavy medium cyclone underflow part is made to enter vertical ring pulsating high gradient Middle magnetomechanical is carried out except iron, and non-magnetic product is spodumene rough concentrate, and magnetic product and heavy medium cyclone overflow portion one It rises and enters next step;
Step 4: ore grinding-classification;Magnetic product is fed to ball mill together with heavy medium cyclone overflow portion and carries out ore grinding, And so that ball mill and 4# linear vibrating screen is formed grind grading closed circuit flow, and the undersize that sieves 4# linear vibrating screen and The undersize of 3# linear vibrating screen screening enters 1# hydrocyclone together and is classified;
Step 5: gravity treatment-classification;1# hydrocyclone underflow part is passed sequentially through, gravity treatment is carried out by spiral chute and shaking table, Tantalum-niobium concentrate is obtained, and gravity tailings then feeds 2# hydrocyclone and is classified again, makes 2# hydrocyclone bottom tapping Ball mill is returned to, 2# hydrocyclone overflow portion enters next step;
Step 6: magnetic separation-desliming;The merging of the overflow portion of 1# hydrocyclone and 2# hydrocyclone is successively fed into cartridge type magnetic It selects machine and pulsating high gradient magnetic separator with vertical ring to carry out magnetic separation, so that non-magnetic product is entered 3# hydrocyclone and carry out desliming, 3# rotation Stream device overflow portion enters thickening pond together with magnetic product and is concentrated, and tailing carries out dry row's processing, 3# hydrocyclone bottom Stream part enters next step;
Step 7: flotation-concentration-dehydration;Flotation, the concentrate and tailings that flotation obtains are carried out to the hydrocyclone underflow part 3# It is concentrated respectively by thickening pond, recycles filter press to carry out filters pressing later, respectively obtain spodumene concentrate and feldspar concentrate.
CN201910241879.1A 2019-03-28 2019-03-28 Comprehensive utilization method for spodumene beneficiation Active CN109894257B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110575904A (en) * 2019-09-23 2019-12-17 昆明理工大学 Spodumene grading-grade dual medium-flotation beneficiation method
CN111068898A (en) * 2019-12-06 2020-04-28 核工业北京化工冶金研究院 Method for producing bulk concentrate by mineral separation from polymetallic ore
CN113102093A (en) * 2021-04-21 2021-07-13 中国地质科学院郑州矿产综合利用研究所 High-efficiency utilization method of multi-component phosphorite resource

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110575904A (en) * 2019-09-23 2019-12-17 昆明理工大学 Spodumene grading-grade dual medium-flotation beneficiation method
CN111068898A (en) * 2019-12-06 2020-04-28 核工业北京化工冶金研究院 Method for producing bulk concentrate by mineral separation from polymetallic ore
CN113102093A (en) * 2021-04-21 2021-07-13 中国地质科学院郑州矿产综合利用研究所 High-efficiency utilization method of multi-component phosphorite resource

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