01sau luv luv
Feldspar yog ib qho ntawm cov minerals uas pom ntau tshaj plaws hauv lub continental crust. Nws cov khoom tseem ceeb suav nrog SiO2, Al2O3, K2O, Na2O thiab lwm yam. Nws muaj potassium, sodium, calcium thiab me me ntawm barium thiab lwm yam alkali hlau lossis alkaline earth hlau. Raws li cov khoom siv tsis yog hlau, cov zaub mov feldspar tau faib dav hauv lub ntiaj teb lub plhaub, thiab yog cov zaub mov silicate pob zeb uas tsim tau ntau tshaj plaws tshwj tsis yog quartz. Kwv yees li 60% ntawm lawv tshwm sim hauv cov pob zeb magmatic, 30% hauv cov pob zeb metamorphic, thiab 10% hauv cov pob zeb sedimentary, nrog rau tag nrho qhov hnyav ntawm 50% ntawm lub ntiaj teb tag nrho qhov hnyav. Muaj ib qho isomorphism zoo hauv cov zaub mov feldspar, thiab cov tshuaj lom neeg feem ntau yog qhia los ntawm Or.xAbyAnz(x+y+z=100), qhov twg Or, Ab thiab An sawv cev rau peb yam khoom ntawm potassium feldspar, albinite thiab calcium feldspar, raws li.
Lub ntsiab lus yaj ntawm feldspar feem ntau yog li ntawm 1300 ℃, qhov ceev yog li ntawm 2.58g / cm33, Mos hardness 6.5, qhov hnyav tshwj xeeb hloov pauv ntawm 2.5-3, brittle, compression tsis kam, zoo grindability thiab kev loj hlob kev ua tau zoo, yooj yim rau crush. Zoo tshuaj stability, corrosion tsis kam, tshwj tsis yog muaj ntau concentration ntawm sulfuric acid thiab hydrofluoric acid; Pab yaj ua haujlwm, feem ntau siv ua flux hauv ceramic thiab iav kev lag luam; Qis index ntawm refraction thiab birefraction. Nws muaj ib tug glassy luster, tab sis feem ntau muaj xim sib txawv vim nws muaj impurities. Feem ntau ntawm feldspar minerals yog siv ua raw khoom rau iav thiab ceramic kev lag luam, thiab kuj tuaj yeem siv rau kev kho chiv, abrasives thiab cov cuab yeej, iav fiber thiab lwm yam lag luam.
02 Yam cuam tshuam rau qhov zoo ntawm feldspar
Thawj yog cov khoom uas muaj peev xwm zas xim, xws li Fe, Ti, V, Cr, Mn, Cu, thiab lwm yam.
Nyob rau hauv ib txwm muaj xwm txheej, Fe thiab Ti yog cov ntsiab lus tseem ceeb ntawm cov xim zas, lwm cov ntsiab lus me me heev, qib dawb tsis muaj feem cuam tshuam ntau.
Qeb thib ob yog cov zaub mov tsaus nti, xws li biotite, rutile, chlorite thiab lwm yam. Cov ntsiab lus ntawm cov zaub mov tsaus nti hauv cov pob zeb hauv av tsawg, tab sis nws muaj kev cuam tshuam loj rau qhov zoo ntawm feldspar concentrate. Hom thib peb yog cov organic carbon tso nrog feldspar, uas muab cov ore ib xim grey-dub. Hauv feem ntau, cov organic carbon yooj yim raug tshem tawm ntawm qhov kub siab, thiab qhov dawb tsis muaj txiaj ntsig ntau. Cov ntsiab lus tseem ceeb ntawm cov khoom lag luam yog hlau, titanium, thiab hlau, thiab qhov chaw ntawm cov khoom yuav tshwm sim cov pob dub, cov ntsiab lus calcium siab dhau, qhov chaw ntawm cov khoom tsis sib xws, yog li txhawm rau txhim kho qhov zoo ntawm cov pob zeb ntev, daim ntawv thov ntawm pob zeb ntev, cov ntsiab lus ntawm cov zaub mov tsaus nti thiab calcium yuav tsum tau txo qis, tshwj xeeb tshaj yog kev tshem tawm cov hlau oxide.
Qhov muaj hlau nyob hauv feldspar feem ntau muaj cov ntawv hauv qab no: 1. Nws yog monomer lossis aggregate ntawm hematite, magnetite thiab limonite nrog qhov loj me ntawm >0.1 hli. Nws yog spherical, koob zoo li, flakelike lossis irregular, heev dispersed nyob rau hauv feldspar minerals thiab yooj yim rau tshem tawm. Qhov thib ob, qhov chaw ntawm feldspar yog polluted los ntawm hlau oxide nyob rau hauv daim ntawv ntawm seepage, los yog raws li cov kab nrib pleb, minerals thiab cleavage pob qij txha ntawm feldspar penetration faib, cov hlau oxide tsim los ntawm hlau zas xim ua rau muaj kev nyuaj ntawm kev tshem tawm hlau. Qhov thib peb, nws muaj nyob rau hauv daim ntawv ntawm cov hlau-bearing gangue minerals, xws li biotite, limonite, pyrite, ferrotitanium ore, amphibole, epidote thiab lwm yam.
03 Cov txheej txheem siv tau zoo ntawm feldspar ore
Tam sim no, cov txheej txheem tseem ceeb ntawm kev ntxuav cov feldspar ore hauv tsev feem ntau yog "crushing - grinding classification - magnetic separation - flotation", raws li cov ntsiab lus sib txawv ntawm cov khoom siv feldspar mineral thiab cov yam ntxwv ntawm cov khoom siv gangue, thiab kev sib cais tes, desudging, classification thiab lwm yam haujlwm.
(1) kev sib tsoo thiab kev sib tsoo
Kev tsoo ntawm feldspar muab faib ua cov crushing loj thiab cov crushing me. Feem ntau cov ores yuav tsum dhau los ntawm ob txoj kev ntawm cov crushing loj thiab cov crushing me. Cov crushing loj feem ntau ntawm lub puab tsaig crusher, cov khoom siv crushing feem ntau yog cov crusher hom impact, rauj hom crusher, impact hom crusher, thiab lwm yam.
Kev sib tsoo ntawm feldspar feem ntau yog muab faib ua kev sib tsoo qhuav thiab kev sib tsoo ntub.
Qhov ua tau zoo ntawm kev sib tsoo ntub dej siab dua li ntawm kev sib tsoo qhuav, thiab qhov tshwm sim ntawm "kev sib tsoo ntau dhau" tsis yooj yim tshwm sim. Cov khoom siv sib tsoo feem ntau yog lub pob zeb, lub zeb pas nrig, lub zeb pej thuam, lub zeb xuab zeb, lub zeb vibration, lub zeb cua, thiab lwm yam.
(2) Ntxuav thiab tshem cov roj av
Feldspar ore nyob rau hauv cov txheej txheem ntawm kev tsim ntau dua lossis tsawg dua yuav muaj qee qhov ntawm slime. Kev ntxuav yog feem ntau yog tshem tawm cov impurities xws li av nplaum, av nplaum zoo thiab mica hauv feldspar. Kev ntxuav tuaj yeem txo cov ntsiab lus ntawm Fe2O3nyob rau hauv cov hlau, thiab tseem txhim kho cov ntsiab lus ntawm K2O thiab Na2Kev ntxuav O.Ore yog cais tawm ntawm cov zaub mov loj-grained nyob rau hauv qhov kev nqis tes ua ntawm dej ntws los ntawm kev siv cov yam ntxwv ntawm cov khoom me me thiab qeeb qeeb ntawm cov av nplaum, cov av nplaum zoo thiab mica. Cov khoom siv ntxuav ore feem ntau yog scrubbing tshuab, vibrating screen thiab ore ntxuav tank.
Lub hom phiaj tseem ceeb ntawm kev tshem tawm cov av nkos yog kom tshem tawm cov ore hauv paus los ntawm cov ore thiab cov ore theem nrab ntawm cov chav kawm nruab nrab ntawm cov txheej txheem sib tsoo tawg, thiab tiv thaiv cov nyhuv ntawm kev xaiv tom qab ntawm cov hmoov. Cov khoom siv deputer feem ntau siv muaj hydraulic cyclone, classifier, centrifuge thiab depuff.
(3) kev sib cais sib nqus
Siv qhov sib txawv ntawm cov hlau nplaum ntawm ntau yam ores, cov txheej txheem ntawm kev tshem tawm hlau nyob rau hauv qhov kev ua ntawm sab nraud magnetic teb hu ua sib cais magnetic.Feldspar tsis muaj magnetism, tab sis Fe2O3thiab mica hauv feldspar muaj lub zog tsis muaj zog, yog li nyob rau hauv qhov xwm txheej ntawm kev txhawb nqa lub zog sab nraud magnetic teb, Fe2O3, mica thiab feldspar tuaj yeem sib cais. Tam sim no, cov khoom siv sib cais sib nqus feem ntau siv hauv Suav teb feem ntau suav nrog lub ntiaj teb tsis tshua muaj lub ntiaj teb roller magnetic separator, tas mus li magnet nruas magnetic separator, ntub magnetic phaj magnetic separator, ntsug nplhaib siab gradient magnetic separator, electromagnetic slurry siab gradient magnetic separator thiab superconducting siab zog magnetic separator.
(4) kev ntab dej
Txoj kev flotation yog hais txog kev ntxiv cov neeg sawv cev kho, tus neeg sau, tus neeg sawv cev ua npuas dej thiab lwm yam neeg sawv cev rau hauv cov khoom siv sib tsoo pulp, yog li cov hlau tsis huv txuas rau lub npuas, yog li nws thiab cov kua pulp, thiab tom qab ntawd tshuab khawb tawm, yog li cov hlau tsis huv thiab cov khoom siv hmoov zoo sib cais. Flotation yog ib txoj hauv kev zoo los tshem tawm cov khoom tsis huv ntawm feldspar. Ntawm ib sab tes, nws tuaj yeem tshem tawm cov khoom tsis huv xws li hlau thiab mica, thiab ntawm qhov tod tes, nws tuaj yeem ua rau cov ntsiab lus ntawm potassium thiab sodium ntau ntxiv. Thaum cov minerals txawv, kev xaiv ntawm tus neeg sawv cev ntes txawv, tab sis cov txheej txheem flotation rov qab tuaj yeem siv tau.
Lub sijhawm tshaj tawm: Lub Ob Hlis-01-2021