Separation Method Ntawm Kaolin
Jan 16, 2024| (1) Txhawm rau cais cov khoom tsis muaj av nplaum xws li quartz, feldspar, mica, hlau ntxhia, titanium minerals, thiab cov organic teeb meem los ntawm kaolin thiab tsim cov khoom kaolin uas tuaj yeem ua tau raws li qhov xav tau ntawm ntau yam kev lag luam, ntxiv rau kev siv lub ntiajteb txawj nqus sib cais, flotation, sib nqus sib cais, thiab lwm yam. kom huv thiab tshem tawm cov impurities ntawm kaolin, qee zaum sib sib zog nqus ua cov txheej txheem xws li tshuaj bleaching, ultrafine tev, calcination, thiab kev hloov kho deg kuj siv los kho kaolin. Cov ntxhia ua tiav ntawm kaolin tuaj yeem muab faib ua ob txoj haujlwm: txheej txheem qhuav thiab txheej txheem ntub.
(2) Txoj kev qhuav feem ntau yog crushing cov extracted raw ore los ntawm ib tug crusher mus rau ib ncig ntawm 25mm thiab pub nws mus rau hauv lub tawb crusher kom txo cov particle loj mus txog 6 hli. Lub crushed ore yog ntxiv hauv av los ntawm lub tshuab Raymond zeb nruab nrog lub centrifugal separator thiab cyclone plua plav collector. Cov txheej txheem no tuaj yeem tshem tawm feem ntau ntawm cov xuab zeb thiab pob zeb, thiab yog qhov tsim nyog rau kev ua cov ore nrog cov xim dawb, cov xuab zeb thiab gravel tsis tshua muaj, thiab tsim cov khoom me me. Kev ua kom qhuav muaj cov nqi tsim khoom tsawg thiab cov khoom siv feem ntau yog siv los ua cov khoom siv qis hauv kev lag luam xws li roj hmab, yas, thiab ntawv.
(3) Cov txheej txheem ntub dej feem ntau cuam tshuam nrog cov khoom siv raw, ua raws li pulping, xuab zeb tshem tawm, kev faib tawm cua daj cua dub, tev tawm, kev faib tawm centrifuge, sib nqus sib nqus (lossis tshuaj dawb), concentration, siab pom, thiab ziab. Cov khoom uas tshwm sim tuaj yeem siv rau ceramics lossis papermaking txheej. Yog tias npaj cov qib muab tub lim lossis cov ntawv ua cov txheej txheem kaolin, nws yog ib qho tsim nyog yuav tsum tau ua kom cov txheej txheem calcination, nrog rau cov ore crushing, pulping, cyclone classification, tev, centrifugal classification, concentration, siab pom, internal steam drying, calcination, depolymerization, thiab lwm yam. [4]
(4) Txoj kev calcination yog ib txoj kev siv dav rau kev tsim cov khoom tshwj xeeb kaolin. Nws muaj plaub calcination kub ntau yam: 500-700 degree, 925 degree, 1000 degree, thiab 1400 degree . Daim ntawv thov ntau yam ntawm cov khoom tau los ntawm calcination ntawm qhov sib txawv kub kuj txawv. Calcined kaolin, uas tsuas yog tshem tawm cov pab pawg hydroxyl, yog siv los ua ib qho muab tub lim rau cable yas thiab roj hmab sealing rings; Kaolin calcined ntawm 1000 degree tuaj yeem hloov TiO2 thiab siv los ua daim ntawv muab tub lim; Kaolin, uas tau raug calcined ntawm 1300 ~ 1525 degree, yuav siv tau los ua ib tug muab tub lim rau refractory khoom thiab raws li ib tug puab txheej rau optical iav crucibles.