CN109926194A - Method for recovering garnet and green pyroxene in limonite - Google Patents
Method for recovering garnet and green pyroxene in limonite Download PDFInfo
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- CN109926194A CN109926194A CN201910194459.2A CN201910194459A CN109926194A CN 109926194 A CN109926194 A CN 109926194A CN 201910194459 A CN201910194459 A CN 201910194459A CN 109926194 A CN109926194 A CN 109926194A
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- 239000002223 garnet Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 33
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052611 pyroxene Inorganic materials 0.000 title description 5
- 239000000047 product Substances 0.000 claims abstract description 113
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 92
- 239000011707 mineral Substances 0.000 claims abstract description 92
- 239000012141 concentrate Substances 0.000 claims abstract description 86
- 238000007885 magnetic separation Methods 0.000 claims abstract description 80
- 239000013067 intermediate product Substances 0.000 claims abstract description 23
- 230000005484 gravity Effects 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 229910001731 omphacite Inorganic materials 0.000 claims description 77
- 238000004064 recycling Methods 0.000 claims description 14
- 238000003801 milling Methods 0.000 claims description 11
- 238000010334 sieve classification Methods 0.000 claims description 6
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 20
- 238000000926 separation method Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 abstract 3
- 229910052637 diopside Inorganic materials 0.000 abstract 3
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 229910052642 spodumene Inorganic materials 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 36
- 229910052742 iron Inorganic materials 0.000 description 18
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 17
- 239000012535 impurity Substances 0.000 description 16
- 239000000696 magnetic material Substances 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- 235000021321 essential mineral Nutrition 0.000 description 6
- 241000219991 Lythraceae Species 0.000 description 5
- 235000014360 Punica granatum Nutrition 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 229910001919 chlorite Inorganic materials 0.000 description 3
- 229910052619 chlorite group Inorganic materials 0.000 description 3
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 238000005188 flotation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 239000010443 kyanite Substances 0.000 description 1
- 229910052850 kyanite Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000020985 whole grains Nutrition 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a method for recovering garnet and spodumene from limonite, which comprises the following steps: grinding the raw ore sample by a rod mill; screening and grading the ground ore product, and dividing the ground ore product into a plurality of particle sizes; mixing the products of each grade to obtain ore pulp, and reselecting respectively; three products, namely a heavy mineral product, an intermediate product and a light mineral product are obtained by gravity separation of each size fraction product, and the light mineral product is used as tailings; drying the heavy mineral products and the intermediate products of each size fraction respectively; and respectively carrying out primary dry magnetic separation and secondary dry magnetic separation on the dried heavy mineral product and the intermediate product, wherein the primary dry magnetic separation is weak magnetic separation, and the secondary dry magnetic separation is strong magnetic separation. The invention can effectively improve the quality of the garnet and the diopside concentrate, the content of the garnet mineral is more than 91%, the recovery rate of the garnet mineral is more than 85%, the content of the diopside mineral is more than 90%, and the recovery rate of the diopside mineral is more than 84.50%, thereby reducing the production cost and the environmental pollution.
Description
Technical field
The present invention relates to technical field of mineral processing, are related to a kind of side for recycling garnet and omphacite in Ryukyu Currents
Method.
Background technique
Eclogite is a kind of high temperature and pressure metamorphic rock, and part Su Lu superelevation is prolonged in China Qinling Mountains-Dabie UHPM zone east
A large amount of ultrahigh pressure eclogite bodies are distributed in pressure modifier band.The mineral composition of the Ryukyu Currents of different sources is different, mainly by
The mineral compositions such as garnet, omphacite, chlorite, wherein the mineral content of garnet and omphacite is total can generally reach
80% or more, the mineral that can be also comprehensively utilized containing rutile, kyanite, mica etc. in the Ryukyu Currents in the part place of production.
The main dressing product of Ryukyu Currents is garnet and omphacite.Garnet is sharp with grain corner, compares
Weight and the features such as hardness is larger, chemical property is stablized, be widely used in steel derusting by sandblasting, high pressure waterjet, wear-resistant material preparation,
The industrial circles such as chemical industry and Water treatment filtration, good garnet are alternatively arranged as jewel；Omphacite also has part and pomegranate
The similar property of sub- stone, the partial use of alternative garnet, while omphacite color is gorgeous, can be used as building decoration material
Material.With the fast development of national economy, the market demand of garnet and omphacite also increasingly increases.
Currently, the method for garnet and omphacite mainly uses single gravity treatment and flotation in recycling Ryukyu Currents.Just
For single gravity concentration process, it is more difficult to the garnet and omphacite concentrate product of mineral content high (> 90%) are obtained, it is main former
The gravitational separation equipments sharpness of separation such as spiral chute, shaking table is not high because being, and in ore milling product wholegrain grade reuse adoption process thickness ore particle it
Between interfere with each other it is serious.The sharpness of separation of floatation process is higher than single gravity concentration and magnetic separation process, but there are costs for floatation process
The control of higher, flotation conditions is strictly not easy to implement at the scene, floating agent pollution environment, garnet and omphacite concentrate surface
There is medicament residual.The weak magnetic that garnet has is sorted according to single magnetic separation, then due to garnet with
The magnetic difference of other mineral is smaller, and effect is poor.
Certain Eclogite Type rutile ore roughing experimental study [J], nonmetallic ore, yellow person of outstanding talent Wei etc., 2017.1,40 (1) are open
A kind of rutile ore roughing test method obtains light mineral directly as omphacite concentrate, but green after table concentration
The index of pyroxene concentrate is poor, yield 26.06%, and mineral content is greater than 85%, mineral recovery rate 70%, in addition, the party
The yield 26.05% of garnet concentrate, mineral content 90%, mineral recovery rate 70% in method.Garnet and omphacite
Yield, mineral content and the mineral recovery rate of concentrate all need to be further increased.
Summary of the invention
The present invention is directed to overcome prior art defect, garnet and omphacite in a kind of recycling Ryukyu Currents are proposed
Method, this method can effectively improve the quality of garnet and omphacite concentrate, and garnet yield is improved, mine
Object content is greater than 91%, and mineral recovery rate is greater than 85%；Omphacite concentrate Omphacite mineral content is greater than 90%, omphacite mine
The object rate of recovery is greater than 84.50%, reduces production cost, reduces environmental pollution.
To achieve the above object, a kind of the technical solution adopted by the present invention are as follows: garnet and green in recycling Ryukyu Currents
The method of pyroxene, comprising the following steps:
A: raw ore sample ore carries out ore grinding using rod mill, obtains the ore milling product of certain fineness；
B: ore milling product is subjected to sieve classification, is divided into several grades；
C: size mixing to each grade product obtains ore pulp, and pulp density is 15%~30%, after each grade product is sized mixing
Gravity treatment is carried out respectively；
D: each grade product obtains three products, respectively heavy mineral product by gravity treatment, and intermediate products and light mineral produce
Product；The essential mineral group of heavy mineral product becomes a large amount of garnet and a small amount of omphacite, the essential mineral of intermediate products
Group becomes a large amount of omphacite and a small amount of garnet, and the essential mineral group of light mineral product becomes chlorite, mica and mine
Mud, light mineral product is as tailing；
E: the heavy mineral product and intermediate products of each grade are separately dried；
F: by after drying heavy mineral product and intermediate products carry out a dry type magnetic separation respectively, a dry type magnetic is weak magnetic
Choosing obtains impurity and the non-magnetic products such as ilmenite, magnetic iron ore respectively, carries out secondary dry type magnetic to the non-magnetic product of low intensity magnetic separation
Choosing, secondary dry type magnetic separation are high intensity magnetic separation, obtain magnetic product respectively and non-magnetic product, the magnetic product of high intensity magnetic separation are pomegranate
Sub- stone concentrate, the non-magnetic product of high intensity magnetic separation are omphacite concentrate, and magnetic field strength when low intensity magnetic separation is 0.3T~0.4T, Qiang Ci
Magnetic field strength when selecting is 0.6T~0.8T；
Further, the magnetic field strength in step f when low intensity magnetic separation is 0.3-0.4T, and magnetic field strength when high intensity magnetic separation is
0.75-0.8T。
Further, the ore milling product of certain fineness is that the quality of -0.074mm grade in ore milling product accounts for mill in step a
The 20%~50% of mineral products gross mass.
Further, the arbitrary value that the partition size of sieve classification is 0.1~0.5mm in step b；Several grades are 2
~5 grades.
Further, gravity treatment uses spiral chute in step d, and the cross dip of spiral chute is smaller, and inclination angle range is in 5-
10 °, compared to other gravitational separation equipments, the advantages of spiral chute, is that treating capacity is big, and occupied area is small, and low energy consumption.
Further, dry type magnetic separation uses drum-type dry-type magnetic extractor in step f.
The beneficial effects of the present invention are:
Method of the invention can obtain the garnet of high-quality (mineral content is greater than 90%) and omphacite concentrate produces
Product: 42% or more garnet concentrate yield, garnet mineral content 91.16-92.24%, mineral recovery rate is in 85.79-
88.08%, compared with existent technique, yield is improved, and mineral recovery rate improves 15% or more；Omphacite concentrate
In omphacite mineral content 90.40-90.59%, mineral recovery rate is in 84.62-85.62%, compared with prior art, mineral
The rate of recovery improves 14% or more, and mineral content has been increased to 90% or more.
Compared with prior art, the present invention uses ore grinding-classification-gravity treatment-drying-dry type magnetic separation method, in classification-weight
On the basis of choosing, first the impurity such as ilmenite, magnetic iron ore are removed using low intensity magnetic separation, then using high intensity magnetic separation by garnet and green
Pyroxene method separates, and integrated artistic process is simpler, energy consumption is lower, separation index is more stable and environmental-friendly pollution-free.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the mineral processing circuit figure in the specific embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
A kind of method of garnet and omphacite in recycling Ryukyu Currents, comprising the following steps:
A: raw ore sample ore carries out ore grinding using rod mill, obtains the ore milling product of certain fineness；
B: ore milling product is subjected to sieve classification, is divided into several grades；
C: size mixing to each grade product obtains ore pulp, and pulp density is 15%~30%, after each grade product is sized mixing
Gravity treatment is carried out respectively；
D: each grade product obtains three products, respectively heavy mineral product by gravity treatment, and intermediate products and light mineral produce
Product；The essential mineral group of heavy mineral product becomes a large amount of garnet and a small amount of omphacite, the essential mineral of intermediate products
Group becomes a large amount of omphacite and a small amount of garnet, and the essential mineral group of light mineral product becomes chlorite, mica and mine
Mud, light mineral product is as tailing；
E: the heavy mineral product and intermediate products of each grade are separately dried；
F: by after drying heavy mineral product and intermediate products carry out a dry type magnetic separation, a dry type magnetic separation operation respectively
For low intensity magnetic separation, low intensity magnetic separation obtains the impurity such as ilmenite, magnetic iron ore and non-magnetic product respectively, and the non-magnetic product of low intensity magnetic separation carries out
Secondary dry type magnetic separation, secondary dry type magnetic separation are high intensity magnetic separation, obtain magnetic product and non-magnetic product respectively, and the magnetic of high intensity magnetic separation produces
Product are garnet concentrate, and the non-magnetic product of high intensity magnetic separation is omphacite concentrate, and magnetic field strength when low intensity magnetic separation is 0.3T
~0.4T, magnetic field strength when high intensity magnetic separation are 0.6T~0.8T；
As shown in Figure 1, the example of the ore dressing of Ryukyu Currents of the present invention is as follows:
Embodiment 1
The Ryukyu Currents of the present embodiment pick up from Shandong Rizhao, raw ore analysis shows, the mineral content of garnet in ore
It is 51.60%, the mineral content of omphacite is 28.50%.The mineral processing circuit of the present embodiment passes through referring to shown in attached drawing 1
Broken to obtain -2mm raw ore and carry out ore grinding again, grinding fineness is that -0.074mm content is 35% (mass content, similarly hereinafter).By ore grinding
Product carries out sieve classification, is divided into+0.3mm, 0.1~0.3mm and three grades of -0.1mm；+ 0.3mm grade is sized mixing into concentration
For 20% ore pulp, 0.1~0.3mm grade sizes mixing into the ore pulp that concentration is 25%, and it is 25% that -0.1mm grade, which sizes mixing into concentration,
Ore pulp.
The ore pulp of+0.3mm grade is subjected to gravity treatment (gravitational separation equipment is spiral chute), obtain+0.3mm heavy mineral product ,+
0.3mm intermediate products and+0.3mm light mineral product ,+0.3mm light mineral product is as tailing.+ 0.3mm heavy mineral product is in
Between product be separately dried, it is dry after+0.3mm heavy mineral product carry out low intensity magnetic separation (magnetic plant be drum-type dry type magnetic separation
Machine), the magnetic field strength of low intensity magnetic separation is 0.4T, and it is the impurity 1 such as+0.3mm ilmenite, magnetic iron ore and non magnetic for obtaining magnetic material product
Produce product；The nonmagnetics product of low intensity magnetic separation carries out high intensity magnetic separation, and the magnetic field strength of high intensity magnetic separation is 0.75T, acquisition+0.3mm pomegranate
Sub- stone concentrate 1 and+0.3mm omphacite concentrate 1.+ 0.3mm intermediate products after drying carry out low intensity magnetic separation, and (magnetic plant is roller
Formula dry-type magnetic extractor), the magnetic field strength of low intensity magnetic separation is 0.4T, and obtaining magnetic material product is that+0.3mm ilmenite, magnetic iron ore etc. are miscellaneous
Matter 2 and nonmagnetics product；The nonmagnetics product of low intensity magnetic separation carries out high intensity magnetic separation, and the magnetic field strength of high intensity magnetic separation is 0.75T, obtains
+ 0.3mm garnet concentrate 2 and+0.3mm omphacite concentrate 2.By the impurity such as+0.3mm ilmenite, magnetic iron ore 1 and ilmenite,
The impurity such as magnetic iron ore 2 are merged into the impurity such as+0.3mm ilmenite, magnetic iron ore；By+0.3mm garnet concentrate 1 and garnet
Concentrate 2 is merged into+0.3mm garnet concentrate；It is green that+0.3mm omphacite concentrate 1 and omphacite concentrate 2 are merged into+0.3mm
Pyroxene concentrate.
The ore pulp of 0.1~0.3mm grade is subjected to gravity treatment (gravitational separation equipment is spiral chute), obtains 0.1~0.3mm weight mine
Produce product, 0.1~0.3mm intermediate products and 0.1~0.3mm light mineral product, 0.1~0.3mm light mineral product is as tailing.
0.1~0.3mm heavy mineral product and intermediate products are separately dried, and 0.1~0.3mm heavy mineral product after drying carries out low intensity magnetic separation
(magnetic plant be drum-type dry-type magnetic extractor), the magnetic field strength of low intensity magnetic separation are 0.4T, obtain magnetic material product i.e. 0.1~
The impurity such as 0.3mm ilmenite, magnetic iron ore 1 and nonmagnetics product；The nonmagnetics product of low intensity magnetic separation carries out high intensity magnetic separation, high intensity magnetic separation
Magnetic field strength be 0.75T, obtain 0.1~0.3mm garnet concentrate 1 and 0.1~0.3mm omphacite concentrate 1.After drying
0.1~0.3mm intermediate products carry out low intensity magnetic separation (magnetic plant is drum-type dry-type magnetic extractor), and the magnetic field strength of low intensity magnetic separation is
0.4T obtains impurity 2 and the nonmagnetics products such as magnetic material product i.e. 0.1~0.3mm ilmenite, magnetic iron ore；Low intensity magnetic separation it is non-
Magnetic material product carries out high intensity magnetic separation, and the magnetic field strength of high intensity magnetic separation is 0.75T, obtains 0.1~0.3mm garnet concentrate 2 and 0.1
~0.3mm omphacite concentrate 2.The impurity such as the impurity such as 0.1~0.3mm ilmenite, magnetic iron ore 1 and ilmenite, magnetic iron ore 2 are merged
At impurity such as 0.1~0.3mm ilmenite, magnetic iron ores；0.1~0.3mm garnet concentrate 1 and garnet concentrate 2 are merged
At 0.1~0.3mm garnet concentrate；0.1~0.3mm omphacite concentrate 1 and omphacite concentrate 2 are merged into 0.1~0.3mm
Omphacite concentrate.
The ore pulp of -0.1mm grade is subjected to gravity treatment (gravitational separation equipment is spiral chute), obtain -0.1mm heavy mineral product, -
0.1mm intermediate products and -0.1mm light mineral product, -0.1mm light mineral product is as tailing.- 0.1mm heavy mineral product is in
Between product be separately dried, it is dry after -0.1mm heavy mineral product carry out low intensity magnetic separation (magnetic plant be drum-type dry type magnetic separation
Machine), the magnetic field strength of low intensity magnetic separation is 0.4T, and it is the impurity 1 such as -0.1mm ilmenite, magnetic iron ore and non magnetic for obtaining magnetic material product
Produce product；The nonmagnetics product of low intensity magnetic separation carries out high intensity magnetic separation, and the magnetic field strength of high intensity magnetic separation is 0.75T, acquisition -0.1mm pomegranate
Sub- stone concentrate 1 and -0.1mm omphacite concentrate 1.- 0.1mm intermediate products after drying carry out low intensity magnetic separation, and (magnetic plant is roller
Formula dry-type magnetic extractor), the magnetic field strength of low intensity magnetic separation is 0.4T, and obtaining magnetic material product is that -0.1mm ilmenite, magnetic iron ore etc. are miscellaneous
Matter 2 and nonmagnetics product；The nonmagnetics product of low intensity magnetic separation carries out high intensity magnetic separation, and the magnetic field strength of high intensity magnetic separation is 0.75T, obtains
Obtain -0.1mm garnet concentrate 2 and -0.1mm omphacite concentrate 2.By the impurity such as -0.1mm ilmenite, magnetic iron ore 1 and ferrotianium
The impurity such as mine, magnetic iron ore 2 are merged into the impurity such as -0.1mm ilmenite, magnetic iron ore；By -0.1mm garnet concentrate 1 and seed of pomegranate
Stone concentrate 2 is merged into -0.1mm garnet concentrate；- 0.1mm omphacite concentrate 1 and omphacite concentrate 2 are merged into -0.1mm
Omphacite concentrate.
Each garnet and omphacite concentrate sorting index of the present embodiment are shown in Table 1.
Each garnet of 1 embodiment of table 1 and omphacite concentrate sorting index/%
| Name of product | Yield | Mineral content | Mineral recovery rate |
| + 0.3mm garnet concentrate | 4.33 | 88 | 7.38 |
| 0.1~0.3mm garnet concentrate | 30.52 | 95 | 56.19 |
| - 0.1mm garnet concentrate | 14.05 | 90 | 24.51 |
| + 0.3mm omphacite concentrate | 3.25 | 89 | 10.15 |
| 0.1~0.3mm omphacite concentrate | 19.35 | 91 | 61.78 |
| - 0.1mm omphacite concentrate | 4.22 | 90 | 13.33 |
The total concentrate of garnet (each grade garnet concentrate merges) yield is 48.90%, mineral content 92.94%, mine
The object rate of recovery is 88.08%；The total concentrate of omphacite (each grade omphacite concentrate merges), yield was 26.82%, and mineral content is
90.59%, mineral recovery rate 85.26%.
Embodiment 2
Embodiment 2 and embodiment 1 are almost the same, the difference is that, the Ryukyu Currents of the present embodiment pick up from Donghai Area, Jiangsu,
Raw ore analysis shows, the mineral content of garnet is 45.60% in ore, and the mineral content of omphacite is 35.30%.Each grain
The heavy mineral product of grade and the low intensity magnetic separation magnetic field strength of intermediate products are 0.35T, and high intensity magnetic separation magnetic field strength is 0.8T.
Each garnet and omphacite concentrate sorting index of the present embodiment are shown in Table 2.
Each garnet of 2 embodiment of table 2 and omphacite concentrate sorting index/%
| Name of product | Yield | Mineral content | Mineral recovery rate |
| + 0.3mm garnet concentrate | 2.80 | 88 | 5.40 |
| 0.1~0.3mm garnet concentrate | 29.80 | 93 | 60.78 |
| - 0.1mm garnet concentrate | 10.10 | 89 | 19.71 |
| + 0.3mm omphacite concentrate | 2.60 | 86 | 6.33 |
| 0.1~0.3mm omphacite concentrate | 25.65 | 91 | 66.12 |
| - 0.1mm omphacite concentrate | 4.72 | 91 | 12.17 |
The total concentrate of garnet (each grade garnet concentrate merges) yield is 42.70%, mineral content 91.73%, mine
The object rate of recovery is 85.89%；The total concentrate of omphacite (each grade omphacite concentrate merges), yield was 32.97%, and mineral content is
90.61%, mineral recovery rate 84.62%.
Embodiment 3
Embodiment 3 and embodiment 1 are almost the same, the difference is that, the Ryukyu Currents of the present embodiment pick up from Qinghai Ulan,
Raw ore analysis shows, the mineral content of garnet is 50.70% in ore, and the mineral content of omphacite is 23.68%.Each grain
The heavy mineral product of grade and the low intensity magnetic separation magnetic field strength of intermediate products are 0.30T, and high intensity magnetic separation magnetic field strength is 0.75T.This implementation
Each garnet and omphacite concentrate sorting index of example are shown in Table 3.
Each garnet of 3 embodiment of table 3 and omphacite concentrate sorting index/%
| Name of product | Yield | Mineral content | Mineral recovery rate |
| + 0.3mm garnet concentrate | 4.33 | 87 | 7.43 |
| 0.1~0.3mm garnet concentrate | 34.21 | 92 | 62.08 |
| - 0.1mm garnet concentrate | 9.17 | 90 | 16.28 |
| + 0.3mm omphacite concentrate | 1.98 | 86 | 7.19 |
| 0.1~0.3mm omphacite concentrate | 16.80 | 91 | 64.56 |
| - 0.1mm omphacite concentrate | 3.65 | 90 | 13.87 |
The total concentrate of garnet (each grade garnet concentrate merges) yield is 47.71%, mineral content 91.16%, mine
The object rate of recovery is 85.79%；The total concentrate of omphacite (each grade omphacite concentrate merges), yield was 22.43%, and mineral content is
90.40%, mineral recovery rate 85.62%.
Analytical table 1, table 2 and table 3 are it is found that garnet and omphacite in a kind of recycling Ryukyu Currents proposed by the present invention
Method can effectively recycle garnet and omphacite in Ryukyu Currents, and garnet concentrate and omphacite concentrate index are excellent
Good, method compared with the prior art, method and process process proposed by the present invention is simpler, energy consumption is lower, separation index is more steady
It is fixed and environmental-friendly pollution-free.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of method of garnet and omphacite in recycling Ryukyu Currents, it is characterised in that: the following steps are included:
A: raw ore sample ore carries out ore grinding using rod mill, obtains the ore milling product of certain fineness；
B: ore milling product is subjected to sieve classification, is divided into several grades；
C: size mixing to each grade product obtains ore pulp, and pulp density is 15%~30%, and each grade product is distinguished after sizing mixing
Carry out gravity treatment；
D: each grade product obtains three products, respectively heavy mineral product, intermediate products and light mineral product by gravity treatment, gently
Mineral products are as tailing；
E: the heavy mineral product and intermediate products of each grade are separately dried；
F: by after drying heavy mineral product and intermediate products carry out a dry type magnetic separation respectively, obtain non-magnetic product, then
Secondary dry type magnetic separation is carried out to non-magnetic product, the magnetic product that secondary dry type magnetic separation obtains is garnet concentrate, secondary dry type
The non-magnetic product that magnetic separation obtains is omphacite concentrate, and dry type magnetic separation is low intensity magnetic separation, and magnetic field strength is 0.3T~0.4T, two
Secondary dry type magnetic separation is high intensity magnetic separation, and magnetic field strength is 0.6T~0.8T.
2. the method for garnet and omphacite in a kind of recycling Ryukyu Currents according to claim 1, it is characterised in that:
Magnetic field strength in step f when low intensity magnetic separation is 0.3-0.4T, and magnetic field strength when high intensity magnetic separation is 0.75-0.8T.
3. the method for garnet and omphacite in a kind of recycling Ryukyu Currents according to claim 1, it is characterised in that:
The ore milling product of certain fineness is that the quality of -0.074mm grade accounts for the 20%~50% of ore milling product gross mass in step a.
4. the method for garnet and omphacite in a kind of recycling Ryukyu Currents according to claim 1, it is characterised in that:
The partition size of sieve classification is the arbitrary value of 0.1~0.5mm in step b.
5. the method for garnet and omphacite in a kind of recycling Ryukyu Currents according to claim 1, it is characterised in that:
Several grades are 2~5 grades in step b.
6. the method for garnet and omphacite in a kind of recycling Ryukyu Currents according to claim 1, it is characterised in that:
Gravity treatment uses spiral chute in step d.
7. the method for garnet and omphacite in a kind of recycling Ryukyu Currents according to claim 1, it is characterised in that:
Dry type magnetic separation uses drum-type dry-type magnetic extractor in step f.
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| CN110743684A (en) * | 2019-10-15 | 2020-02-04 | 中国地质科学院郑州矿产综合利用研究所 | Method for improving quality, reducing cost and improving efficiency of ceramic raw material prepared from granite stone waste stone |
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