CN104528747A - Method for improving recycling rate and whiteness of kaolin tailings - Google Patents
Method for improving recycling rate and whiteness of kaolin tailings Download PDFInfo
- Publication number
- CN104528747A CN104528747A CN201510006279.9A CN201510006279A CN104528747A CN 104528747 A CN104528747 A CN 104528747A CN 201510006279 A CN201510006279 A CN 201510006279A CN 104528747 A CN104528747 A CN 104528747A
- Authority
- CN
- China
- Prior art keywords
- kaolin
- whiteness
- treadle
- machine
- hulling rice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 90
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000004064 recycling Methods 0.000 title abstract 3
- 238000007885 magnetic separation Methods 0.000 claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 229910052622 kaolinite Inorganic materials 0.000 claims abstract description 13
- 239000002734 clay mineral Substances 0.000 claims abstract description 11
- 239000011362 coarse particle Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 241000209094 Oryza Species 0.000 claims description 64
- 235000007164 Oryza sativa Nutrition 0.000 claims description 64
- 235000009566 rice Nutrition 0.000 claims description 64
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 31
- 238000011084 recovery Methods 0.000 claims description 23
- 239000012141 concentrate Substances 0.000 claims description 20
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 20
- 239000011707 mineral Substances 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 239000011229 interlayer Substances 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000006148 magnetic separator Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 4
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000013467 fragmentation Methods 0.000 claims description 3
- 238000006062 fragmentation reaction Methods 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 description 9
- 239000010453 quartz Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000002441 X-ray diffraction Methods 0.000 description 7
- 229910052900 illite Inorganic materials 0.000 description 6
- 238000005065 mining Methods 0.000 description 6
- 235000013339 cereals Nutrition 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 235000019580 granularity Nutrition 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241000145637 Lepturus Species 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000019587 texture Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a method for improving the recycling rate and whiteness of kaolin tailings. According to the method, fine kaolin tailings are adopted as raw materials, through mechanical heaping, hydraulic sorting and grading, magnetic separation and delaminating working procedures, aluminum-oxide-contained coarse particle clay mineral, comprising kaolinite and mica-glimmerton, in the fine tailings is recycled, and ceramic kaolin which is good in whiteness and plasticity is manufactured. According to the method, technical properties of the recycling rate, the whiteness, the plasticity and the like of the 325-mesh fine tailings in the kaolin can be made to conform to the quality performance requirement of production ingredient raw materials of middle and top grade ceramic, and the aim that waste resources are reutilized is achieved.
Description
Technical field
The present invention relates to the method for nonmetalliferous ore comprehensive utilization, be specifically related to a kind of method improving the Kaolin Tailings rate of recovery and whiteness, to prepare high whiteness kaolin clay for ceramic.
Background technology
Kaolin Tailings refers to that kaolin raw ore roughly selects the fine particle slag of underflow again after swirler is scanned through washing.It is kaolin raw ore through smashing slurry desanding and hydraulic beneficiation obtains thin mine tailing slag that current domestic kaolin clay for ceramic mine tailing produces technical process, then after stacking dehydration, makes slag sell; The feature of this slag is that particle diameter is thick, whiteness is poor.The major defect that this technique exists is that ridge mineral in mine tailing and iron-bearing mineral equal size are many, high temperature burn till because of dyeing mineral show black, yellow and reduce whiteness, thus directly cannot be used as high-grade ceramic raw material.In addition, the useful component particles such as clay mineral such as the kaolinite in thin mine tailing and mica-illite are thick, and great majority are between 325 order grain edges, and quartzy and that hardness is larger iron-bearing mineral etc. is the mineral that will remove, the close very difficult separation of two class mineral granularities.
Summary of the invention
The object of this invention is to provide a kind of method improving the Kaolin Tailings rate of recovery and whiteness, the technical features such as the rate of recovery of the thin mine tailing of kaolin 325 order, whiteness and plasticity-are made to meet qualitative performance requirements for medium-to-high grade Production of Ceramics formula material, to economize on resources.
For realizing above object, a kind of technical scheme improving the method for the Kaolin Tailings rate of recovery and whiteness of the present invention is for raw material with the thin mine tailing of kaolin, by machine heap, waterpower sorting classifying, magnetic separation and operation of delaminating, reclaim thin mine tailing and comprise kaolinite and mica-illitic salic coarse particles clay mineral, make high whiteness, kaolin clay for ceramic that plasticity-is good.
Described machine treadle-operated tilt hammer for hulling rice carries out treadle-operated tilt hammer for hulling rice by two row's cast iron treadle-operated tilt hammer for hulling rice great wheel streams about a driven by motor to the Kaolin Tailings scanned through hydrocyclone in treadle-operated tilt hammer for hulling rice groove to hit, want make up water to keep the moisture machine treadle-operated tilt hammer for hulling rice time of 15% ~ 25% for 5-8 hour in machine treadle-operated tilt hammer for hulling rice process, dig out machine treadle-operated tilt hammer for hulling rice mine tailing after machine treadle-operated tilt hammer for hulling rice, the operation of Dai Xia road is processed.
The described machine treadle-operated tilt hammer for hulling rice time is 7-7.5 hour.
Described magnetic separation is under the condition of concentration 10%-15%, add Sodium hexametaphosphate 99 and water glass composite assistant 1 ‰, after stirring, ore pulp is fed high gradient magnetic separator magnetic separation, and iron-bearing mineral and mechanical iron are removed by magnetic separator, obtains 325 order magnetic separation kaolin rough concentrates.
Described delaminating is that 325 order magnetic separation kaolin rough concentrate slurries are pumped into machine for cutting charge into pieces super-fine processing, the zirconium silicate ball medium making kaolin particle be subject to high speed rotating in the machine for cutting charge into pieces process of delaminating is sheared and friction, cause kaolin particle fragmentation and part interlayer structure to dissociate further, obtain the kaolin of delaminating that fine fraction increases, whiteness is higher.
Aforesaid method have employed and dissociated by Kaolin Tailings in small, broken bits selectively, and then carries out thickness separation by waterpower sorting, and fine-graded recovery product is again by magnetic separation with delaminate to improve whiteness.
1, the effect of machine treadle-operated tilt hammer for hulling rice and effect
The present invention utilizes the clay mineral such as salic kaolinite and mica-illite and quartz in thin mine tailing to there is this feature of difference in hardness, the machine treadle-operated tilt hammer for hulling rice operation that the butt of employing machine treadle-operated tilt hammer for hulling rice is hit, roll, the clay mineral interlayer structures such as the kaolinite making hardness less and mica-illite dissociate in small, broken bits, and quartz is non-interlayer structure and hardness is large not easily in small, broken bits; After machine piles 7 hours, its finished product machine treadle-operated tilt hammer for hulling rice scans 200 order content of mine tailing, 325 order content ,-2mm fine fraction content is all significantly improved, as shown in table 1.Increase again machine heap time fine fraction content do not significantly improve, therefore select 7-7.5 hour as machine heap process period be rational.
Machine treadle-operated tilt hammer for hulling rice thin mine tailing grade contrast table after 7 hours piled by the thin mine tailing of table 1 and machine
The forward and backward mineralogical analysis of kaolin thin mine tailing kaolin machine treadle-operated tilt hammer for hulling rice: Fig. 1 is that before machine treadle-operated tilt hammer for hulling rice, thin mine tailing X-ray diffraction (XRD) figure, Fig. 2 are thin mine tailing X-ray diffraction (XRD) figure after machine treadle-operated tilt hammer for hulling rice.Because only having carried out the process of machine treadle-operated tilt hammer for hulling rice to sample, so the forward and backward chemical composition of machine treadle-operated tilt hammer for hulling rice and mineralogical composition do not change, but can be found out by comparison diagram 1 and Fig. 2, the XRD diffraction peak of quartz mineral after the process of machine treadle-operated tilt hammer for hulling rice, no matter its absolute strength or relative intensity, all obviously increase than before the process of machine treadle-operated tilt hammer for hulling rice, the machine treadle-operated tilt hammer for hulling rice New Process for Treatment that the present invention proposes is described, quartz mineral is not almost affected, and the clay mineral such as kaolinite and mica-illite, comparatively large on its impact, its XRD intensity obviously reduces, and shows that its particle and grain size are all by refinement.
Before kaolin thin mine tailing machine treadle-operated tilt hammer for hulling rice, morphology analysis: Fig. 3 ~ Fig. 4 is SEM photo under front thin mine tailing-325 mesh sieve of machine treadle-operated tilt hammer for hulling rice, in the FOV (Field of View) of observing, seen kaolin particle is comparatively large, and kaolin common as seen builds up shape structure, its interlayer is not peeled off, and totally occurs with the form of aggregate.
After kaolin thin mine tailing machine treadle-operated tilt hammer for hulling rice, one of morphology analysis: Fig. 5 ~ Fig. 6 is SEM photo under rear thin mine tailing-325 mesh sieve of machine heap, in the FOV (Field of View) of observing, seen kaolin particle is less, seen kaolin builds up shape structure, its interlayer is peeled off, become monodispersed flake-shaped particles, overall granular size obviously reduces, and mutually confirms with XRD result.Fig. 3 ~ Fig. 4
withfig. 5 ~ Fig. 6 contrasts: when same amplification 8000 times, under 325 mesh sieves of machine treadle-operated tilt hammer for hulling rice, much thinner than granule-morphology under 325 mesh sieves before machine treadle-operated tilt hammer for hulling rice (Fig. 3 ~ Fig. 4 right figure scale) of granule-morphology (Fig. 5 ~ Fig. 6 left figure scale), illustrate that coarse particles dissociates.
After kaolin thin mine tailing machine treadle-operated tilt hammer for hulling rice, morphology analysis two: Fig. 7 ~ Fig. 8 is SEM photo on 325 mesh sieves after thin mine tailing machine treadle-operated tilt hammer for hulling rice, in the FOV (Field of View) of observing, seen by be particulate state non-clay mineral, have no the kaolinite mineral with laminated feature, the kaolinite mineral illustrating through machine treadle-operated tilt hammer for hulling rice laminated feature has dissociated and has entered 325 order screen underflows, again demonstrates novel process and has good effect to raising resource utilization.
To sum up, the present invention has shown that thick kaolin and quartz wait mineral disaggregation degree different, adopts machine treadle-operated tilt hammer for hulling rice can carry out selective dissociation to kaolin.
2, the waterpower sorting classifying after the thin mine tailing machine heap of kaolin
After employing machine heap, Kaolin Tailings is raw material, adds water and carries out smashing slurry dispersion, controlled concentration 35%, with the sorting of F150 hydrocyclone, 325 order kaolin of-45 um grades in the thin mine tailing after its effect extracting machine heap, be recycled rough concentrate, its Al2O3 content is 35.06%.
3,325 order kaolin rough concentrate magnetic separation
Owing to being mixed into the mechanical iron Fe of more iron-bearing mineral Fe2O3 and the wearing and tearing of machine heap head in the kaolin rough concentrate product reclaimed from the thin mine tailing of machine treadle-operated tilt hammer for hulling rice, be Huang after high temperature burns till and have chocolate spot, whiteness reduces.Sodium hexametaphosphate 99 and water glass composite assistant 1 ‰ is added under the condition of concentration 10%-15%, after stirring, ore pulp is fed high gradient magnetic separator magnetic separation, iron-bearing mineral and mechanical iron are removed by magnetic separator, and obtain 325 order magnetic separation kaolin rough concentrates, Al2O3 content brings up to 35.25% from 35.06%.
After magnetic separation, Fe2O3 content 0.46% drops to 0.30% before magnetic separation, and 1280 DEG C of firing whiteness bring up to 89.2% from 85.9%.
4, ultra-fine the delaminating of 325 order magnetic separation kaolin products
325 order magnetic separation kaolin rough concentrate slurries are pumped into machine for cutting charge into pieces super-fine processing, and after delaminating, 325 order magnetic separation kaolin fine fractions increase, and whiteness improves.Its principle is that the zirconium silicate ball medium that kaolin particle is subject to high speed rotating in the machine for cutting charge into pieces process of delaminating is sheared and friction, kaolin particle fragmentation and part interlayer structure is caused to dissociate further, obtain kaolin of delaminating, after delaminating, product obviously bleaches, this is because mining tailing product attenuate after the not contaminated white in kaolin inside present ,-2um grain size content is increased to 61.2% from 38%.
Although Peeling Technology is kaolin processing common technology, but the thick kaolin that present invention finds after the magnetic separation of machine treadle-operated tilt hammer for hulling rice thin mine tailing is significantly improved through firing whiteness of delaminating, 1280 DEG C of firing whiteness bring up to 91.5% from 89.2%, and plasticity index brings up to 0.63 from 0.45.
A kind of method improving the Kaolin Tailings rate of recovery and whiteness of the present invention has following characteristics:
1, analyzed by advanced instrument X-diffraction and SEM electron-microscope scanning, the non-clay patterns such as clay and quartz such as the coarse particles kaolinite in discovery mine tailing and mica-illite have very large difference, can pass through machine treadle-operated tilt hammer for hulling rice selective dissociation, clay mineral is attenuated.
2, the thin mine tailing of kaolin is processed through present invention process method, 325 order grain-level recoveries are increased to 45% from 15%, the index meeting QB/ T14563-2008 " kaolin and test method thereof " TC-1 is brought up to from the Al2O3 of thin mining tailing kaolin concentrate, whiteness, also TC-0 index is met by magnetic separation Fe2O3, again through delaminating, 1280 DEG C of firing whiteness reach TC-0 index, can meet high-grade ceramic blank and glaze formula requirement.The method technique is simple, easy to operate, and backwater circulation uses, and easily realizes industrialization.Concrete physiochemical techniques index is in table 2.
Table 2 present invention process process related products physiochemical techniques index table.
Accompanying drawing explanation
Fig. 1 is a kind of thin tail improved in the method for the Kaolin Tailings rate of recovery and whiteness of the present invention
X-ray diffraction (XRD) figure before the machine treadle-operated tilt hammer for hulling rice of ore deposit.
Fig. 2 is X-ray diffraction (XRD) figure after a kind of thin mine tailing machine treadle-operated tilt hammer for hulling rice improved in the method for the Kaolin Tailings rate of recovery and whiteness of the present invention.
Fig. 3 amplifies 3500 times of SEM photos before machine treadle-operated tilt hammer for hulling rice under a kind of thin mine tailing-325 mesh sieve improved in the method for the Kaolin Tailings rate of recovery and whiteness of the present invention.
Fig. 4 amplifies 8000 times of SEM photos before machine treadle-operated tilt hammer for hulling rice under a kind of thin mine tailing-325 mesh sieve improved in the method for the Kaolin Tailings rate of recovery and whiteness of the present invention.
Fig. 5 amplifies 8000 times of SEM photos after machine treadle-operated tilt hammer for hulling rice under a kind of thin mine tailing-325 mesh sieve improved in the method for the Kaolin Tailings rate of recovery and whiteness of the present invention.
Fig. 6 amplifies 10000 times of SEM photos after machine treadle-operated tilt hammer for hulling rice under a kind of thin mine tailing-325 mesh sieve improved in the method for the Kaolin Tailings rate of recovery and whiteness of the present invention.
A kind of thin mine tailing-325 mesh sieve improved in the method for the Kaolin Tailings rate of recovery and whiteness of the present invention amplifies 400 times of SEM photos after machine treadle-operated tilt hammer for hulling rice to Fig. 7.
A kind of thin mine tailing-325 mesh sieve improved in the method for the Kaolin Tailings rate of recovery and whiteness of the present invention amplifies 70 times of SEM photos after machine treadle-operated tilt hammer for hulling rice to Fig. 8.
Scheme that Chinese and English alphabetical M is mica-illite class mineral, K is kaolinite, Q for quartz, F be feldspar.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of method improving the Kaolin Tailings rate of recovery and whiteness of the present invention is described in further detail.
The method that the present invention is a kind of improves the Kaolin Tailings rate of recovery and whiteness with the thin mine tailing of kaolin for raw material, by machine heap, waterpower sorting classifying, magnetic separation and operation of delaminating, reclaim thin mine tailing and comprise kaolinite and mica-illitic salic coarse particles clay mineral, make high whiteness, kaolin clay for ceramic that plasticity-is good.Each operation is described in detail as follows:
1, Kaolin Tailings machine heap processing
Machine treadle-operated tilt hammer for hulling rice is with reference to technology of husking rice with mortar and pestle among the people, treadle-operated tilt hammer for hulling rice head is made into cast iron by stone material, by two row totally 26 enemies about a driven by motor, carry out treadle-operated tilt hammer for hulling rice to the mine tailing in treadle-operated tilt hammer for hulling rice groove in turn to hit, in each treadle-operated tilt hammer for hulling rice groove, first load the mine tailing that 200 kilograms of kaolin hydrocyclones are scanned, will to keep the skin wet maintenance about 20% moisture in machine treadle-operated tilt hammer for hulling rice process, machine treadle-operated tilt hammer for hulling rice digs out machine treadle-operated tilt hammer for hulling rice mine tailing after 7.5 hours, and the operation of Dai Xia road is processed.
2, the thin mine tailing hydraulic beneficiation of kaolin reclaims 325 order grades
Machine treadle-operated tilt hammer for hulling rice mine tailing is fed the anistree pond of vertical strengthened stirring, stir and pump into the sorting of F150 hydrocyclone by 2PN rubber lined pump after 5 minutes, obtaining overflow pulp is that 325 orders reclaim rough concentrate, and underflow heap does building sand use after water is filtered dry.
3, thin mining tailing kaolin rough concentrate iron removal by magnetic separation
The rough concentrate that Kaolin Tailings reclaims is concentrated into solid content 30%, add 1 ‰ Sodium hexametaphosphate 99 dispersion agents, electromagnetism high gradient magnetic separator is evenly fed with 10 cubic metres of flow velocitys per hour, remove Armco magnetic iron and contain the ridge non-clay minerals such as iron mica, the rough concentrate aluminum oxide that Kaolin Tailings reclaims and whiteness all obtain raising, obtain the thin mining tailing magnetic concentrate of kaolin.
4, thin mining tailing magnetic concentrate is delaminated
Kaolin magnetic concentrate slurry is at 200 cubic metres of collection stock tank sedimentation concentrations after 6 hours, and concentration reaches more than 30%, with 1.5 tons/hour to slurry amount pump as BP-1000 machine for cutting charge into pieces ,-2 microns of content bring up to 61.2% from 25%, become rough concentrate magnetic separation and to delaminate product.
5, detect
XRD-diffraction, electron-microscope scanning: detected by material system of Xiamen University
Fe2O3, AL2O3 content: detect according to GB/T14563-2008 " kaolin and test method thereof ".
Plasticity-: KS-B micro computer plastometer, Xiangtan City instrument company limited whiteness: WSD-3c white chromaticity instrument, Beijing Kang Guang Instrument Ltd.
Granularity: BT-1500 centrifugal type particles distribution instrument, Dandong Bai Te Instrument Ltd.
Adopt the technology of the present invention, can know and analyze useful mineralogical composition and shape characteristic in Kaolin Tailings, processing treatment improves the relative liberation degree of kaolinite class mineral, and can improve fine fraction content.This is because after machine treadle-operated tilt hammer for hulling rice, the sheet obtained in various degree containing aluminosilicate of the interlayer structures such as mica, kaolinite, illite is dissociated, and Free quartzs etc. are very difficult attenuates, so aluminum oxide is enriched in inside 200 orders, 325 order fine fractions further, machine treadle-operated tilt hammer for hulling rice reclaims all more non-machine treadle-operated tilt hammer for hulling rice of productive rate after purifying and is greatly improved, join ore deposit to eluriate and can, according to product index requirement, select hydrocyclone separation condition to produce 200 orders or 325 order products flexibly.
Kaolinic mine tailing after machine heap, be easy to a kaolinite class mineral through waterpower sorting and wait minerals separation with quartz, obtain more fine fraction kaolin, alumina content brings up to 34.7% from 23% of mine tailing, rough concentrate decreases through deironing rear oxidation iron level and also takes away the coarse particles mineral of aluminum oxide simultaneously, that aluminum oxide brings up to more than 35% further, mining tailing except iron ore concentrate after delaminating, the particle of 2 micron grain sizes significantly increases, the plasticity-of itself improves, whiteness also further increases, in downstream ceramic batch uses, bonding properties is improved greatly, be conducive to reducing ceramic scrap rate, optimize texture and the light transmission of pottery, improve ceramic product added value.
Claims (5)
1. one kind is improved the method for the Kaolin Tailings rate of recovery and whiteness, it is characterized in that: with the thin mine tailing of kaolin for raw material, by machine heap, waterpower sorting classifying, magnetic separation and operation of delaminating, reclaim thin mine tailing and comprise kaolinite and mica-illitic salic coarse particles clay mineral, make high whiteness, kaolin clay for ceramic that plasticity-is good.
2. improve the method for the Kaolin Tailings rate of recovery and whiteness according to claim 1, it is characterized in that: described machine treadle-operated tilt hammer for hulling rice carries out treadle-operated tilt hammer for hulling rice by two row's cast iron treadle-operated tilt hammer for hulling rice great wheel streams about a driven by motor to the Kaolin Tailings scanned through hydrocyclone in treadle-operated tilt hammer for hulling rice groove to hit, want make up water to keep the moisture machine treadle-operated tilt hammer for hulling rice time of 15% ~ 25% for 5-8 hour in machine treadle-operated tilt hammer for hulling rice process, dig out machine treadle-operated tilt hammer for hulling rice mine tailing after machine treadle-operated tilt hammer for hulling rice, the operation of Dai Xia road is processed.
3. improve the method for the Kaolin Tailings rate of recovery and whiteness according to claim 2, it is characterized in that: the described machine treadle-operated tilt hammer for hulling rice time is 7-7.5 hour.
4. improve the method for the Kaolin Tailings rate of recovery and whiteness according to claim 1, it is characterized in that: described magnetic separation is under the condition of concentration 10%-15%, add Sodium hexametaphosphate 99 and water glass composite assistant 1 ‰, after stirring, ore pulp is fed high gradient magnetic separator magnetic separation, iron-bearing mineral and mechanical iron are removed by magnetic separator, obtain 325 order magnetic separation kaolin rough concentrates.
5. improve the method for the Kaolin Tailings rate of recovery and whiteness according to claim 1, it is characterized in that: described in delaminate be that 325 order magnetic separation kaolin rough concentrate slurries are pumped into machine for cutting charge into pieces super-fine processing, the zirconium silicate ball medium making kaolin particle be subject to high speed rotating in the machine for cutting charge into pieces process of delaminating is sheared and friction, cause kaolin particle fragmentation and part interlayer structure to dissociate further, obtain the kaolin of delaminating that fine fraction increases, whiteness is higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006279.9A CN104528747B (en) | 2015-01-07 | 2015-01-07 | Method for improving recycling rate and whiteness of kaolin tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006279.9A CN104528747B (en) | 2015-01-07 | 2015-01-07 | Method for improving recycling rate and whiteness of kaolin tailings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104528747A true CN104528747A (en) | 2015-04-22 |
| CN104528747B CN104528747B (en) | 2017-02-22 |
Family
ID=52844442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510006279.9A Active CN104528747B (en) | 2015-01-07 | 2015-01-07 | Method for improving recycling rate and whiteness of kaolin tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104528747B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836754A (en) * | 2016-06-03 | 2016-08-10 | 辽宁石化职业技术学院 | Method for bleaching kaolin |
| CN106745020A (en) * | 2016-12-09 | 2017-05-31 | 湖南御家化妆品制造有限公司 | High oil-absorbing kaolin and its preparation method and application |
| CN106810207A (en) * | 2017-01-10 | 2017-06-09 | 广东明泰盛陶瓷有限公司 | A kind of ceramic whiteware mud high |
| CN110330309A (en) * | 2019-07-04 | 2019-10-15 | 新化县顺达电子陶瓷有限公司 | A kind of high whiteness kaolin and its preparation method and application |
| CN112408940A (en) * | 2020-12-02 | 2021-02-26 | 厦门欣意盛新材料科技有限公司 | Preparation method of ball clay for ceramic blank |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613818A (en) * | 2004-11-09 | 2005-05-11 | 茂名高岭科技有限公司 | Production for superfine kaolin |
| CN101117004A (en) * | 2007-08-24 | 2008-02-06 | 中国地质大学（武汉） | A kind of production technology of high viscosity concentration kaolin |
| CN101269946A (en) * | 2008-04-30 | 2008-09-24 | 中国地质大学（武汉） | A kind of preparation method of calcined kaolin |
| CN101585014A (en) * | 2009-05-27 | 2009-11-25 | 龙岩高岭土有限公司 | Method for improving washing rate of kaolin clay raw ore |
| CN102275941A (en) * | 2011-05-17 | 2011-12-14 | 陈文瑞 | Production method of kaolin clay for ceramic with high dry flexural strength |
| CN102515700A (en) * | 2011-11-08 | 2012-06-27 | 厦门大学 | Iron removal method of ball clay for electric ceramic industry |
| CN103086390A (en) * | 2012-11-16 | 2013-05-08 | 中国地质大学（武汉） | Technique for efficiently removing iron from kaolin |
| CN203184098U (en) * | 2013-04-17 | 2013-09-11 | 厦门欣意盛非金属材料科技有限公司 | Feeding device of stripper |
-
2015
- 2015-01-07 CN CN201510006279.9A patent/CN104528747B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613818A (en) * | 2004-11-09 | 2005-05-11 | 茂名高岭科技有限公司 | Production for superfine kaolin |
| CN101117004A (en) * | 2007-08-24 | 2008-02-06 | 中国地质大学（武汉） | A kind of production technology of high viscosity concentration kaolin |
| CN101269946A (en) * | 2008-04-30 | 2008-09-24 | 中国地质大学（武汉） | A kind of preparation method of calcined kaolin |
| CN101585014A (en) * | 2009-05-27 | 2009-11-25 | 龙岩高岭土有限公司 | Method for improving washing rate of kaolin clay raw ore |
| CN102275941A (en) * | 2011-05-17 | 2011-12-14 | 陈文瑞 | Production method of kaolin clay for ceramic with high dry flexural strength |
| CN102515700A (en) * | 2011-11-08 | 2012-06-27 | 厦门大学 | Iron removal method of ball clay for electric ceramic industry |
| CN103086390A (en) * | 2012-11-16 | 2013-05-08 | 中国地质大学（武汉） | Technique for efficiently removing iron from kaolin |
| CN203184098U (en) * | 2013-04-17 | 2013-09-11 | 厦门欣意盛非金属材料科技有限公司 | Feeding device of stripper |
Non-Patent Citations (1)
| Title |
|---|
| 张忠飞等: "苏州高岭土尾矿的高效综合利用", 《非金属矿》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836754A (en) * | 2016-06-03 | 2016-08-10 | 辽宁石化职业技术学院 | Method for bleaching kaolin |
| CN106745020A (en) * | 2016-12-09 | 2017-05-31 | 湖南御家化妆品制造有限公司 | High oil-absorbing kaolin and its preparation method and application |
| CN106810207A (en) * | 2017-01-10 | 2017-06-09 | 广东明泰盛陶瓷有限公司 | A kind of ceramic whiteware mud high |
| CN110330309A (en) * | 2019-07-04 | 2019-10-15 | 新化县顺达电子陶瓷有限公司 | A kind of high whiteness kaolin and its preparation method and application |
| CN110330309B (en) * | 2019-07-04 | 2022-02-01 | 新化县顺达电子陶瓷有限公司 | High-whiteness kaolin and preparation method and application thereof |
| CN112408940A (en) * | 2020-12-02 | 2021-02-26 | 厦门欣意盛新材料科技有限公司 | Preparation method of ball clay for ceramic blank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104528747B (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103752401B (en) | Potash feldspar iron removal process | |
| CN102728453B (en) | New technology for sorting lean hematite and magnetite orecontaining iron carbonate | |
| CN105597915B (en) | The wide dual Jie's whole coarse slime separating process of grade can be achieved in one kind | |
| CN108940569B (en) | A kind of comprehensive utilization method of granite | |
| CN110201791B (en) | Comprehensive utilization method of sandy kaolin tailings containing tourmaline, muscovite and quartz sand | |
| CN104528747A (en) | Method for improving recycling rate and whiteness of kaolin tailings | |
| CN105032602B (en) | Highly-efficient preparation method of ultra-white quartz sand utilizing vein quartz minerals | |
| CN110270432B (en) | A kind of method for removing non-calcic mineral impurities in carbide slag | |
| CN110328047B (en) | Method for preparing ceramic raw material from granite stone sawn mud stone powder | |
| CN103990540B (en) | Differential beneficiation quality-improving method for feldspar mineral | |
| CN102251117B (en) | Method for extracting rare earth component from crystal waste slag | |
| CN102259052A (en) | Process for re-cleaning reverse flotation tailings of hematite | |
| CN102357400A (en) | Method for processing low-grade kaolinite ore | |
| CN109265032A (en) | A method of Machine-made Sand is prepared using stone pit rejects | |
| CN108855582A (en) | A kind of production method of artificial quartz stone plate sand | |
| CN110304898A (en) | A method of tailing, which is scanned, with kaolin prepares medium-to-high grade kaolin clay for ceramic | |
| CN108636591A (en) | A method of recycling quartz from iron tailings | |
| CN106583051A (en) | Method for full-sludge flotation co-enrichment recovery of lithium niobium tantalum multi-metal resources | |
| CN107716093A (en) | A kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization | |
| CN104174486A (en) | Combined magnetic separation process for selecting weathering sand ilmenite | |
| CN101632962B (en) | Beneficiating method of diaspore type bauxite | |
| CN105665133B (en) | A kind of comprehensive reutilization method of stone material tailing resource | |
| CN102275941B (en) | Production method of kaolin clay for ceramic with high dry flexural strength | |
| CN107649278A (en) | A kind of method for separating of low-grade titanium-containing magnet ore deposit | |
| CN108704761A (en) | A method of preparing plank quartz using beach quartz sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |