CN109894268A - A kind of wolframite throwing tail proposes the beneficiation method of essence - Google Patents

Abstract

The technical issues of the invention discloses a kind of wolframites to throw the beneficiation method that tail proposes essence, and this method aims to solve the problem that the high beneficiation method human cost of existing wolframite, labor operation low efficiency；This method step are as follows: use single stage crushing graded operation, reach the grade requirement that follow-up phase throws tail operation；The ore separators separation operation of X-ray intelligence is used again, metal-containing minerals are separated with nonmetallic mineral, realizes that the coarse big yield of grade mineral of 6-50mm directly throws tail；Then 6.0mm or less is reached using high-pressure roller mill garrulous ore granularity；Separation operation is slightly swept with coarse granule superelevation field strength vertical ring high-gradient magnetic separator one again, using the superpower magnetic force of superelevation field strength vertical ring high-gradient magnetic separator, effectively recycles weak magnetic wolframite, while further realizing coarse granule mineral and directly throwing tail.Coarse grade mineral can directly be thrown tail by this method, can mitigate significantly the burden of subsequent job, so that the beneficiation cost of wolframite be greatly reduced, realize the low energy consumption high-efficiency recycling of wolframite.

Description

A kind of wolframite throwing tail proposes the beneficiation method of essence

Technical field

The invention belongs to the technical fields of wolframite ore dressing, and in particular to and a kind of wolframite throwing tail proposes the beneficiation method of essence, More particularly, to the combined sorting operator of a kind of X-ray intelligence ore separators and coarse granule superelevation field strength vertical ring high-gradient magnetic separator Method.

Background technique

Wolframite is the main ore for refining tungsten, it is also wolframite, due to the ferrotungsten hydrochlorate containing different proportion It is more with regard to being huebnerite to contain manganese so being ferberite if iron-content is higher with manganese tungstates；Wolframite be brown extremely Black, has metal or semimetallic lustre, and generally it and tin ore originates in granite and quartz mine together

For the recovery process of current wolframite, wherein the sorting process of traditional wolframite is so that " muck is classified, manually Tail, ore grinding, gravity treatment are thrown in picking " based on, although this process is simple, need using a large amount of labour, Er Qielao Act industry low efficiency；Simultaneously as the limitation of black tungsten ore dressing orthodox practice now, it is difficult to eliminate artificial participation, it is desired nonetheless to Artificial hand selection combines to carry out with machinery equipment, but gradually increasing with cost of labor now, is exploited using current methodology Wolframite mine needs to explore a kind of more high-quality and efficient process also more by high-cost challenge to locate Manage wolframite.

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 wolframites to throw the beneficiation method that tail proposes essence, The beneficiation method aims to solve the problem that the beneficiation method human cost of existing wolframite is high, and the technology of labor operation low efficiency is asked Topic；Coarse grade mineral can directly be thrown tail by the beneficiation method, can mitigate significantly the burden of subsequent job, to be greatly reduced black The beneficiation cost of tungsten ore realizes the low energy consumption high-efficiency recycling of wolframite.

(2) technical solution

In order to solve the above-mentioned technical problems, the present invention provides such a wolframites to throw the beneficiation method that tail proposes essence, tool Body step are as follows:

Step 1: broken-graded operation；By wolframite raw ore that grade is 0-350mm through one section of jaw crushing crusher machine, Obtain the wolframite raw ore of -50mm grade, reuse double-deck screen shale shaker washup classification, respectively obtain -50+6.0mm grade and - The mineral of two granularity level of 6.0mm grade, and the mineral of+50mm grade are back to jaw crusher and are crushed again；

Step 2: X-ray intelligence ore separators separation operation；By the mineral of -50+6.0mm grade through X-ray intelligence sorting machine It carries out one slightly sweeping sorting, separating in the parts of the metal-containing minerals never part of metal-containing minerals, obtains the black tungsten of 1# Rough concentrate；

In this step, by realizing being separated in the part of the metal-containing minerals never part of metal-containing minerals Effective enrichment of wolframite, the part of metal-containing minerals is not first part's tailing obtained by the step, which can be used as Construction material stockpiling, the throwing tail of the coarse grade mineral of realization -50+6.0mm grade.

Step 3: high-pressure roller mill muck operation；The black tungsten rough concentrate of 1# is subjected to muck through high-pressure roller mill, reaches it To -6.0mm grade；

By the step, dissociate mineral further.

Step 4: coarse granule superelevation field strength vertical ring high-gradient magnetic separator one slightly sweeps separation operation；Step 3 is obtained- 6.0mm grade fine ore is mixed with -6.0mm grade the mineral that step 1 obtains, and it is found ring through coarse granule superelevation field strength High gradient magnetic separator carries out one and slightly sweeps two stages of magnetic separation, and control background lectromagnetism field is 1.5T or more, and obtaining magnetic product is the black tungsten of 2# Rough concentrate；

By the step, wolframite has obtained further enrichment, and gained non-magnetic product is second part tailing；The step The rapid superpower magnetic force for utilizing superelevation field strength vertical ring high-gradient magnetic separator can effectively recycle weak magnetic wolframite, while further real The direct throwing tail of existing coarse granule mineral, the coarsely graded mineral of completion -6.0mm grade throw tail, make all products from failing as capital construction The recycling and reusing of material.

Step 5: grinding-classification operation；The black tungsten rough concentrate of 2# is subjected to ore grinding through rod mill, make its mineral granularity reach- 0.15mm grade accounts for 90% or more, obtains the intermediate mineral products of wolframite.

In this step, ore grinding is carried out through rod mill to the black tungsten rough concentrate of 2#, the formation of high-frequency screen sieve classification can be used and close Road ore grinding；So that mineral granularity is reached -0.15mm grade by the step simultaneously and account for 90% or more, mineral most of in this way have obtained Complete solution is from having obtained qualified grain size for subsequent gravity-floatation operation, created subsequent very favorable condition.

(3) beneficial effect

Technical solution of the present invention compared with the beneficiation method of traditional wolframite, the beneficial effects of the present invention are:

1, technical solution of the present invention can easily realize the direct throwing tail of the coarse big yield of grade mineral of 6-50mm, can be significantly The burden for mitigating subsequent job, is greatly decreased the energy consumption of subsequent muck operation；

2, technical solution of the present invention utilizes the superpower magnetic force of superelevation field strength vertical ring high-gradient magnetic separator, can effectively recycle weak Magnetic wolframite, while the direct throwing tail of coarse granule mineral is further realized, the coarsely graded mineral of completion -6.0mm grade throw tail, Make all products from failing as the recycling and reusing of construction material；

3, technical solution of the present invention take full advantage of wolframite metal electro optic properties and weak magnetic and wolframite at The characteristics such as mine attribute realize the low energy consumption high-efficiency recycling of wolframite；

4, technical solution of the present invention simple process, easy to operate, low energy consumption, is suitble to large-scale industrial production, have extensive Application prospect.

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 that the wolframite throwing tail started in a southern wolframite mine using the present invention proposes ore concentrate Scheme carries out wolframite sorting, 2000 tons of wolframite raw ore of the wolframite mine day processing, raw ore tungsten grade 0.31% or so, tool Body step are as follows:

A, it is crushed-graded operation；Wolframite raw ore grade is that 0-350mm is obtained through one section of jaw crusher crushing operation It is classified to -50mm grade wolframite raw ore, then using double-deck screen shale shaker washup, the return of+50mm grade mineral is broken again, obtains -50+ 6.0mm grade raw ore yield 82.83% obtains the mineral of -6.0mm grade raw ore 17.17% two granularity level of yield；

B, X-ray intelligence ore separators separation operation；- 50+6.0mm grade raw ore is slightly swept through X-ray intelligence sorting machine one Separation operation separates metal-containing minerals with nonmetallic mineral, obtains the black tungsten rough concentrate yield 16.31% of 1#, 1# wolframite Grade 1.382%, wolframite is effectively enriched with；Gained first part tailing yield 66.52%, black Tungsten tailing grade 0.031%, it is stored up as construction material, the big yield of the coarse grade mineral of realization -50+6.0mm grade throws tail；

C, high-pressure roller mill muck operation；For the black tungsten rough concentrate of 1# through high-pressure roller mill muck operation, grade reaches -6.0mm Grade, mineral are further dissociated.

D, coarse granule superelevation field strength vertical ring high-gradient magnetic separator one slightly sweeps separation operation；High-pressure roller mill muck operation institute The composite ore of -6.0mm grade fine ore and raw ore washup screening gained -6.0mm grade mineral is obtained, it is super through SLon-2000 coarse granule High field intensity vertical ring high-gradient magnetic separator, background lectromagnetism field 1.5T or more, one slightly sweeps two sections of super high field high intensity magnetic separation operations, and gained is magnetic Product is the black tungsten rough concentrate yield 18.36% of 2#, and concentrate tungsten grade 1.568%, wolframite is further enriched with；Gained is non-magnetic Property product be second part tailing yield 15.12%, tailing tungsten grade 0.036%, realization -6.0mm grade coarse fraction mineral throw Tail；

E, grinding-classification operation；The black tungsten rough concentrate of 2# through rod mill grinding operation, is closed again using the formation of high-frequency screen sieve classification Road grinding operation, mineral granularity reach 90% or more -0.15mm grade, and most of mineral will be completely dissociated, and are subsequent reselection Flotation operation obtains qualified grain size, creates favorable conditions for subsequent job.

The wolframite mine sorts the production target comparison such as table 1, raw material tungsten of wolframite and conventional process wolframite In the comparable situation of grade, coarse grade throws tail amount higher than conventional method 41.77% in technical solution of the present invention, and recruitment quantity subtracts Few 33 people, specific energy consumption save 415KW；In the comparable situation of metal recovery rate, mineral enter mill amount and reduce 56.89%, enter ore grinding Object tungsten grade improves 1.152%；As it can be seen that index of the invention is substantially better than conventional method from 1 data of table.

1. two kinds of processes of table handle wolframite data comparison

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 wolframite throws the beneficiation method that tail proposes essence, which is characterized in that specific steps are as follows:

Step 1: broken-graded operation；By grade be 0-350mm wolframite raw ore through one section of jaw crushing crusher machine, obtain To the wolframite raw ore of -50mm grade, reuse double-deck screen shale shaker washup classification, respectively obtain -50+6.0mm grade and - The mineral of two granularity level of 6.0mm grade, and the mineral of+50mm grade are back to jaw crusher and are crushed again；

Step 2: X-ray intelligence ore separators separation operation；The mineral of -50+6.0mm grade are carried out through X-ray intelligence sorting machine One slightly sweeps sorting, and separating in the parts of the metal-containing minerals never part of metal-containing minerals, it is coarse-fine to obtain the black tungsten of 1# Mine；

Step 3: high-pressure roller mill muck operation；The black tungsten rough concentrate of 1# is subjected to muck through high-pressure roller mill, reach- 6.0mm grade；

Step 4: coarse granule superelevation field strength vertical ring high-gradient magnetic separator one slightly sweeps separation operation；Step 3 is obtained- 6.0mm grade fine ore is mixed with -6.0mm grade the mineral that step 1 obtains, and it is found ring through coarse granule superelevation field strength High gradient magnetic separator carries out one and slightly sweeps two stages of magnetic separation, and control background lectromagnetism field is 1.5T or more, and obtaining magnetic product is the black tungsten of 2# Rough concentrate；

Step 5: grinding-classification operation；The black tungsten rough concentrate of 2# is subjected to ore grinding through rod mill, make its mineral granularity reach- 0.15mm grade accounts for 90% or more, obtains the intermediate mineral products of wolframite.