I-Kaolin, ikakhulukazi i-kaolin ene-calcined ecolekile kakhulu, njengento ebaluleke kakhulu engeyona eyensimbi engaphili, ibilokhu idlala indima ebaluleke kakhulu embonini yephepha ngezakhiwo zayo ezinhle kakhulu zomzimba. I-kaolin ene-calcined esetshenziswa embonini yephepha iyinto yokusebenza kwesakhiwo enezimbobo futhi emhlophe kakhulu, esetshenziswa kakhulu ukufaka esikhundleni se-titanium dioxide ebizayo kanye nezinye izinhlayiya zezinga eliphezulu. Njengomkhiqizi wemishini yokugaya,i-kaolin ene-calciumokuqondile kakhului-rollerumshini wokugaya ekhiqizwe yi-HCMilling (Guilin Hongcheng) isetshenziswe kabanzi futhi yaqashelwa ekukhiqizweni kwe-kaolin ene-calcium. Okulandelayo yisingeniso sendlela yokukhiqiza i-kaolin ene-calcium:

Izidingo zekhwalithi zemboni yephepha ye-kaolin ene-calcium zibonakala kakhulu ezidingweni zobukhulu bezinhlayiya, ubumhlophe, amandla okufihla, ukumuncwa kwamafutha, ukuhlushwa kwe-viscosity, inani le-pH, inani lokuguguleka kanye nezinye izinkomba ze-kaolin ene-calcium. Ngaphansi kwezimo lapho imakethe ye-kaolin evamile ehlanziwe ibilokhu incipha unyaka nonyaka ngenxa yomthelela we-calcium carbonate esindayo, ukuthengiswa kwemakethe bekulokhu kuchuma, okwenze abakhiqizi abaningi balandela. Kusukela ngawo-1980, kutholakale inani elikhulu le-kaolin yochungechunge lwamalahle (kuthiwa izindawo ezigciniwe ezingaba khona zidlula amathani ayizigidi eziyizinkulungwane eziyi-10). Ngenxa yekhwalithi yayo ephezulu kanye nokungcola okumbalwa okulimazayo, i-kaolin yochungechunge lwamalahle isibe yinto eluhlaza efanelekile yokukhiqizwa kwe-kaolin ye-calcined grade coating yephepha. Ithemba lemakethe le-kaolin ene-calcium ekhiqizwa kusuka kuchungechunge lwamalahle libanzi.

Inqubo yokukhiqiza i-kaolin ene-calcium ihlanganisa ikakhulukazi izingxenye ezimbili: inqubo yokuchoboza i-superfine kanye nenqubo yokwenza i-calcin ibe mhlophe.

1. Inqubo yokugaya i-superfine yendlela yokukhiqiza i-kaolin ene-calcined: inqubo yokugaya i-superfine iyisixhumanisi esibalulekile sokunquma ikhwalithi ye-kaolin. Ukuchotshozwa kochungechunge lwamalahle i-kaolin superfine kuyi-kaolin eqinile (kusukela ku-5 ~ 20mm kuya ku-40 ~ 80 μ m) I-Ultrafine (kusukela ku-40 kuya ku-80 μ M kuya ku- – 10 μ M noma – 2 μ m).i-kaolin ene-calciumI-Raymond mill kanye ne-calcined kaolin vertical roller mill ezikhiqizwe yi-HCMilling (Guilin Hongcheng) ziyimishini yokuchoboza eqinile, engasetshenziswa ekuchobozeni kokuqala okuqinile kwendlela yokukhiqiza i-kaolin ene-calcined, futhi ingacubungula i-kaolin yamalahle enama-mesh angu-80-600;I-kaolin e-calcined yochungechunge lwe-HLMX okuqondile kakhului-rollerumshini wokugaya, i-ring roller mill kanye neminye imishini yokuchoboza ecolekile kakhulu ifanelekela ukuchoboza okucolekile kakhulu endleleni yokukhiqiza i-kaolin ene-calcined, engacubungula i-3-45 μ M. I-superfine kaolin powder iyi-calcined kaolin superfine powder mill efanelekile.

2. Inqubo yokubala kanye nokwenza mhlophe indlela yokukhiqiza i-kaolin ene-calcium: Uma sibheka izici ze-diagenetic ze-kaolin yochungechunge lwamalahle, okungukuthi, iqukethe izinto eziphilayo, ukuze ubumhlophe bayo obungavuthiwe bube ngu-6 ~ 40% kuphela, okukude kakhulu nokuhlangabezana nezidingo zekhwalithi zemboni yamaphepha ye-kaolin egcotshwe nge-calcium, ngakho-ke inqubo yokususa i-calcium kanye nokwenza mhlophe kumele yamukelwe. Ngokwezidingo ezahlukene zekhwalithi ye-kaolin, ingahlukaniswa futhi ibe imikhiqizo emibili: i-kaolin ene-calcium enokushisa okuphakathi kanye ne-kaolin ene-calcium enokushisa okuphezulu.

Ukuqhathaniswa kwenqubo yezindlela zokukhiqiza i-kaolin ene-calcium: ngokuya ngokuthi inqubo ye-superfine iyinqubo emanzi noma inqubo eyomile kanye nokulandelana kwenqubo ye-superfine kanye nenqubo ye-calcination, izinqubo ezine zokukhiqiza zingahlanganiswa, okungukuthi

(1) inqubo ye-wet superfine elandelwa inqubo ye-calcination (2) inqubo ye-dry superfine elandelwa inqubo ye-calcination (3) i-calcination elandelwa inqubo ye-wet superfine (4) i-calcination elandelwa inqubo ye-dry superfine. Ngenxa yokuthi abantu banokuqonda okuhlukile ngezinto ezi-ultra-fine, izindlela zenqubo ezisetshenziswa emabhizinisini ahlukene zihlukile:

(1) Inqubo yokubala emanzi kakhulu yinde kakhulu, kodwa iyakwazi ukuzivumelanisa nezimo nezinto zokusetshenziswa, futhi ikhwalithi yomkhiqizo ingahlangabezana nezidingo zemboni yephepha;

(2) Inqubo yokugaya nokufaka amanzi kabusha i-superfine ngokuvamile idinga imishini ekhethekile yokomisa kanye nemishini yokusabalalisa. Le nqubo ayivumelani kahle nezinto zokusetshenziswa, kodwa ingakhiqiza imikhiqizo edingwa yimboni yephepha;

(3) Inqubo yokubala i-dry superfine calcination kanye nenqubo yokuqala yokubala i-calcination bese kuba yinqubo yokubala i-dry superfine ayikwazi ukukhiqiza i-kaolin embonini yephepha (ngenxa yesizathu semishini emihle kakhulu), edinga ikhwalithi ephezulu yezinto zokusetshenziswa.

Sekukonke, inqubo ye-dry superfine ngaphambi kokuba i-calcination inamandla okusebenza, futhi umdwebo wokugeleza kwenqubo uthi: i-ore eluhlaza → ukuchoboza → ukuchoboza → i-dry superfine → i-calcination → umkhiqizo. Izinzuzo zale nqubo yilezi: (1) inqubo imfushane, futhi yonke inqubo idinga imishini emithathu kuya kwemine kuphela. Uma u-HongchengIsigayo sempuphu ye-kaolin ultrafine ye-HLMX Uma kukhethwa, kudingeka imishini emithathu kuphela, okungukuthi, i-crusher, i-calcined kaolin ultrafine powder mill, i-calciner, elula ukuphathwa okuphelele kanye nokuhlela okunengqondo; (2) Ukusetshenziswa kwamandla kufanelekile. Kule nqubo, inqubo enhle kakhulu yezinto zokwakha ibekwa ngaphambi kwenqubo ye-calcination ukuze kugwenywe inkinga yokusebenzisa amandla amaningi ngenxa yokuchoboza nokushisa izinto. Uma inqubo ye-powder calcination isetshenziswa, ingabhekwa njengenqubo yokukhiqiza eyomile ephelele. Ngokuphathelene nobuchwepheshe, ukusetshenziswa kwamandla kunengqondo kakhulu.

Ukusebenzisa i-kaolin yochungechunge lwamalahle ukukhiqiza i-kaolin ene-calcined grade coating embonini yamaphepha ngokungangabazeki kuyindlela ephumelelayo yokusebenzisa i-gangue yamalahle ngokuhlakanipha. Kufanele kuqashelwe ukuthi imizila yenqubo efanele kufanele ikhethwe ngokuya ngezinsizakusebenza zendawo kanye nemali. Uma ufuna ukwazi kabanzi ngezindlela zokukhiqiza kanye nokukhethwa kwemishini ye-kaolin ene-calcined, sicela usishayele ucingo ukuthola imininingwane.