01 fotokozani mwachidule
Feldspar ndi imodzi mwa mchere wodziwika bwino kwambiri m'nthaka ya kontinenti. Zigawo zake zazikulu ndi SiO22, Al2O3, K2O, Na2O ndi zina zotero. Muli potaziyamu, sodium, calcium ndi barium ndi zitsulo zina za alkali kapena alkaline earth metals. Monga mchere wosakhala wachitsulo, mchere wa feldspar umafalikira kwambiri mu nthaka ya dziko lapansi, ndipo ndi mchere wopangidwa ndi silicate wofalikira kwambiri kupatula quartz. Pafupifupi 60% ya iwo amapezeka m'miyala ya magmatic, 30% m'miyala ya metamorphic, ndi 10% m'miyala ya sedimentary, yokhala ndi kulemera konse kwa 50% kwa kulemera konse kwa dziko lapansi. Pali isomorphism yopangidwa bwino mu mchere wa feldspar, ndipo kapangidwe ka mankhwala nthawi zambiri kamawonekera ndi OrxAbyAnz(x+y+z=100), pomwe Or, Ab ndi An akuyimira zigawo zitatu za potassium feldspar, albinite ndi calcium feldspar, motsatana.
Malo osungunuka a feldspar nthawi zambiri amakhala pafupifupi 1300℃, ndipo kachulukidwe kake ndi pafupifupi 2.58g/cm3, Mos kuuma 6.5, mphamvu yokoka imasinthasintha pakati pa 2.5-3, kufooka, kukana kupsinjika, kupunthwa bwino komanso magwiridwe antchito otukuka, kosavuta kuphwanya. Kukhazikika kwabwino kwa mankhwala, kukana dzimbiri, kupatula kuchuluka kwa sulfuric acid ndi hydrofluoric acid; Kumathandiza kusungunula ntchito, komwe kumagwiritsidwa ntchito kwambiri ngati flux mumakampani a ceramic ndi galasi; Chizindikiro chochepa cha refraction ndi birefraction. Ili ndi kuwala kofanana ndi galasi, koma nthawi zambiri imakhala ndi mtundu wosiyana chifukwa imakhala ndi zodetsa. Mineral yambiri ya feldspar imagwiritsidwa ntchito ngati zopangira zamakampani agalasi ndi ceramic, ndipo ingagwiritsidwenso ntchito pochiza feteleza, zopopera ndi zida, ulusi wagalasi ndi mafakitale ena.
Zinthu 2 zomwe zimakhudza ubwino wa feldspar
Choyamba ndi chinthu chomwe chili ndi mphamvu yopaka utoto, monga Fe, Ti, V, Cr, Mn, Cu, ndi zina zotero.
Muzochitika zachizolowezi, Fe ndi Ti ndiye zinthu zazikulu zopaka utoto, zinthu zina zomwe zili mkati mwake ndi zazing'ono kwambiri, digiri yoyera ilibe mphamvu zambiri.
Gulu lachiwiri ndi mchere wamdima, monga biotite, rutile, chlorite ndi zina zotero. Kuchuluka kwa mchere wamdima m'miyala yamchere ndi kochepa, koma kumakhudza kwambiri ubwino wa feldspar concentrate. Mtundu wachitatu ndi organic carbon yomwe imayikidwa ndi feldspar, yomwe imapatsa miyalayo mtundu wakuda-wakuda. Nthawi zambiri, organic carbon ndi yosavuta kuchotsa kutentha kwambiri, ndipo kuyera kwake sikukhudza kwambiri. Zinthu zazikulu zomwe zimapangidwa ndi mafakitale ndi chitsulo, titaniyamu, ndi chitsulo, ndipo pamwamba pa chinthucho pamawoneka madontho akuda, calcium yambiri imakhala yokwera kwambiri, pamwamba pa chinthucho ndi wofanana, kotero kuti mchere wautali ukhale wabwino, kugwiritsa ntchito miyala yayitali, kuchuluka kwa mchere wakuda ndi calcium kuyenera kuchepetsedwa, makamaka kuchotsa chitsulo chodetsedwa.
Kukhalapo kwa chitsulo mu feldspar makamaka kuli ndi mitundu iyi: 1. Ndi monomer kapena aggregate ya hematite, magnetite ndi limonite yokhala ndi tinthu tating'onoting'ono tomwe timakula kufika >0.1mm. Ndi yozungulira, yofanana ndi singano, yofanana ndi flake kapena yosakhazikika, yofalikira kwambiri mu mchere wa feldspar ndipo ndi yosavuta kuchotsa. Chachiwiri, pamwamba pa feldspar pamakhala poyipitsidwa ndi chitsulo chosakanizika mu mawonekedwe a kutuluka kwa madzi, kapena m'mphepete mwa ming'alu, mchere ndi malo olumikizirana a feldspar, chitsulo chosakanizika chomwe chimapangidwa ndi utoto wachitsulo chimawonjezera kwambiri zovuta zochotsa chitsulo. Chachitatu, chimakhala mu mawonekedwe a mchere wa gangue wokhala ndi chitsulo, monga biotite, limonite, pyrite, ferrotitanium ore, amphibole, epidote ndi zina zotero.
03 Njira zodziwika bwino zophikira feldspar ore
Pakadali pano, njira yayikulu yoyeretsera miyala ya feldspar m'nyumba nthawi zambiri imakhala "yophwanya - yopera - yopatukana ndi maginito - yoyandama", malinga ndi kuchuluka kwa mchere wa feldspar wodetsedwa ndi mawonekedwe a gangue mineral, komanso kulekanitsa manja, kuchotsa, kugawa ndi ntchito zina.
(1) kuphwanya ndi kupukuta
Kuphwanya kwa feldspar kumagawidwa m'magulu awiri: kuphwanya kolimba ndi kuphwanya pang'ono. Ma ore ambiri amafunika kudutsa njira ziwiri: kuphwanya kolimba ndi kuphwanya pang'ono. Kuphwanya kwakukulu kwa chiguduli chachikulu cha nsagwada, zida zophwanya makamaka chiguduli cha mtundu wa impact, chiguduli cha mtundu wa hammer, chiguduli cha mtundu wa impact, ndi zina zotero.
Kupera kwa feldspar kumagawidwa makamaka mu kupera kouma ndi kupera konyowa.
Kupera konyowa n'kothandiza kwambiri kuposa kupera kouma, ndipo chodabwitsa cha "kupera kwambiri" sichikuwoneka chosavuta. Zipangizo zopera makamaka ndi mpira, ndodo, nsanja, sanding mill, vibration mill, airflow mill, ndi zina zotero.
(2) Kusamba ndi kuchotsa utsi
Matanthwe a Feldspar akamapangidwa amakhala ndi matope pang'ono. Kutsuka makamaka kumafuna kuchotsa zonyansa monga dongo, matope abwino ndi mica mu feldspar. Kutsuka kumatha kuchepetsa kuchuluka kwa Fe2O3mu miyala, komanso kukweza kuchuluka kwa K2O ndi Na2Kutsuka kwa O. Kuchotsa miyala yamtengo wapatali ndi njira yolekanitsira ndi mchere wosakaniza ndi madzi pogwiritsa ntchito mawonekedwe a tinthu tating'onoting'ono komanso liwiro lochepa la dongo, matope ndi mica. Zipangizo zotsukira miyala yamtengo wapatali zomwe zimagwiritsidwa ntchito kwambiri ndi makina otsukira, chophimba chogwedeza ndi thanki yotsukira miyala yamtengo wapatali.
Cholinga chachikulu chochotsera matope ndikuchotsa miyala yachilengedwe kuchokera mu miyala ndi miyala yachiwiri yapakati pa njira yopukutira yosweka, ndikuletsa zotsatira za kusankha kwa ufa pambuyo pake. Zipangizo zodulira zomwe zimagwiritsidwa ntchito kwambiri zimakhala ndi hydraulic cyclone, classifier, centrifuge ndi depuff.
(3) kulekanitsa kwa maginito
Pogwiritsa ntchito kusiyana kwa maginito pakati pa miyala yosiyanasiyana, njira yochotsera chitsulo pansi pa mphamvu ya maginito yakunja imatchedwa kulekanitsa kwa maginito. Feldspar ilibe maginito, koma Fe2O3Ndipo mica mu feldspar ili ndi mphamvu ya maginito yofooka, kotero ngati mphamvu ya maginito yakunja ikulimbitsa, Fe2O3, mica ndi feldspar zitha kulekanitsidwa. Pakadali pano, zida zolekanitsa maginito zomwe zimagwiritsidwa ntchito kwambiri ku China zimaphatikizapo cholekanitsa maginito cha rare earth roller, cholekanitsa maginito cha magnetic drum chokhazikika, cholekanitsa maginito cha wet magnetic plate, cholekanitsa maginito cha vertical ring high gradient, cholekanitsa maginito cha electromagnetic slurry high gradient ndi cholekanitsa maginito cha superconducting high intensity.
(4) kuyandama
Njira yoyandama imatanthauza kuwonjezera chosinthira, chosonkhanitsa, chopangira thovu ndi zinthu zina mu pulp ya zinthu zopangira, kuti zinyalala zachitsulo zigwirizane ndi thovu, kuti ilo ndi yankho la zamkati, kenako kukanda kwamakina, kuti zinyalala zachitsulo ndi ufa wosalala wa zinthu zopangira. Kuyandama ndi njira yothandiza yochotsera zinyalala za feldspar. Kumbali imodzi, imatha kuchotsa zinyalala monga chitsulo ndi mica, ndipo kumbali ina, imatha kuwonjezera potaziyamu ndi sodium. Pamene mchere uli wosiyana, kusankha chogwirira kumakhala kosiyana, koma njira yoyankhira yobwerera ikhoza kugwiritsidwa ntchito.
Nthawi yotumizira: Feb-01-2021