I-Kaolin iyimaminerali yobumba evamile emhlabeni wemvelo.Kuyiminerali ewusizo ye-pigment emhlophe, ngakho-ke, ubumhlophe buyinkomba ebalulekile ethonya ukubaluleka kwe-kaolin.Kukhona insimbi, izinto eziphilayo, izinto ezimnyama nokunye ukungcola ku-kaolin.Lokhu kungcola kuzokwenza i-kaolin ibonakale ngemibala ehlukene, ithonye ubumhlophe.Ngakho i-kaolin kufanele isuse ukungcola.
Izindlela zokuhlanza ezijwayelekile ze-kaolin zifaka ukuhlukaniswa kwamandla adonsela phansi, ukuhlukaniswa kazibuthe, ukuntanta, ukwelashwa ngamakhemikhali, njll. Okulandelayo izindlela ezijwayelekile zokuhlanza i-kaolin:
1. Ukuhlukaniswa kwamandla adonsela phansi
Indlela yokuhlukanisa amandla adonsela phansi kakhulu ISEBENZISA umehluko wokuminyana phakathi kweminerali ye-gangue ne-kaolin ukuze kususwe ukungcola okuminyanisa okuphezulu kwezinto eziphilayo ezikhanyayo, i-quartz, i-feldspar nezici eziqukethe insimbi, i-titanium ne-manganese, ukuze kwehliswe umthelela wokungcola ebumhlophe.Ama-centrifugal concentrators ngokuvamile asetshenziselwa ukususa ukungcola okuphezulu.Iqembu le-hydrocyclone lingasetshenziswa futhi ukuqedela ukugeza nokuhlolwa kwe-kaolin ngesikhathi sokuhlunga, okungenakukwazi ukufeza injongo yokugeza nokuhlela kuphela, kodwa futhi kususe ukungcola okuthile, okunenani elihle lesicelo.
Kodwa-ke, kunzima ukuthola imikhiqizo ye-kaolin efanelekayo ngendlela yokubuyisela kabusha, futhi imikhiqizo yokugcina efanelekile kufanele itholakale ngokuhlukana kazibuthe, ukuntanta, ukubala nezinye izindlela.
2. Ukuhlukaniswa kwamagnetic
Cishe wonke ama-kaolin ore aqukethe inani elincane lensimbi yensimbi, ngokuvamile engu-0.5-3%, ikakhulukazi i-magnetite, i-ilmenite, i-siderite, i-pyrite nokunye ukungcola okunemibala.Ukwehlukaniswa kazibuthe ikakhulukazi KUSEBENZISA umehluko kazibuthe phakathi kweminerali ye-gangue ne-kaolin ukuze kususwe lokhu kungcola okunemibala.
Kumagnetite, i-ilmenite namanye amaminerali aqinile kazibuthe noma amafayili ensimbi axutshwe enqubweni yokucubungula, ukusebenzisa indlela yokuhlukanisa kazibuthe ukuhlukanisa i-kaolin kuphumelela kakhulu.Ngamaminerali abuthakathaka kazibuthe, kunezindlela ezimbili eziyinhloko: enye iwukuba uwose, uyenze ibe amaminerali aqinile kazibuthe we-iron oxide, bese ithwala ukuhlukana kazibuthe;Enye indlela iwukusebenzisa indlela yokuhlukanisa kazibuthe ene-gradient ephezulu kakhulu ukuze kuhlukaniswe kazibuthe.Ngenxa yokuthi ukuhlukaniswa kazibuthe akudingi ukusetshenziswa kwama-agent amakhemikhali, imvelo ngeke ibangele ukungcola, ngakho-ke inqubo yokucubungula amaminerali angenayo i-metallic isetshenziswa kabanzi.Indlela yokuhlukanisa kazibuthe iyixazulule ngempumelelo inkinga yokuxhashazwa kanye nokusetshenziswa kwe-kaolin yezinga eliphansi elingelona inani lezimayini zokuhweba ngenxa yokuqukethwe okuphezulu kwensimbi yensimbi.
Kodwa-ke, kunzima ukuthola imikhiqizo ye-kaolin yezinga eliphezulu ngokuhlukaniswa kazibuthe kuphela, futhi ukwelashwa kwamakhemikhali nezinye izinqubo kuyadingeka ukuze kuqhutshekwe nokunciphisa okuqukethwe kwensimbi emikhiqizweni ye-kaolin.
3. Ukuntanta
Indlela yokuntanta isebenzisa ikakhulukazi umehluko obonakalayo namakhemikhali phakathi kwamaminerali e-ganggue ne-kaolin ukuze iphathe i-kaolin ore eluhlaza ngokungcola okwengeziwe nokuba mhlophe okuphansi, futhi isuse ukungcola okuqukethe insimbi, i-titanium ne-carbon, ukuze kubonakale ukusetshenziswa okuphelele kwe-low-grade. izinsiza ze-kaolin.
I-Kaolin iyimaminerali yobumba evamile.Ukungcola okufana nensimbi ne-titanium kuvame ukugxiliswa ezinhlayiyeni ze-kaolin, ngakho insimbi eluhlaza kufanele igaywe ngezinga elithile lokucoleka.I-Kaolinite evame ukusetshenziswa indlela ye-flotation ye-ultra fine particle flotation method, indlela yokuntanta ye-fluid ephindwe kabili kanye nendlela ye-flocculation flotation ekhethiwe, njll.
I-Flotation ingakhuphula ngempumelelo ubumhlophe be-kaolin, kuyilapho ububi buwukuthi idinga ama-reagents amakhemikhali futhi ibiza kakhulu, kalula ukubangela ukungcola.
4. Ukwelashwa ngamakhemikhali
Ukucwiliswa kwamakhemikhali: okunye ukungcola ku-kaolin kungancibilika ngokukhetha nge-sulfuric acid, i-hydrochloric acid, i-nitric acid namanye ama-leaching agents ukuze kukhishwe ukungcola.Le ndlela ingasetshenziswa ukususa i-hematite, i-limonite ne-siderite ku-kaolin yezinga eliphansi.
Ukwenziwa kwe-Chemical bleaching: ukungcola okuku-kaolin kungenziwa nge-oxidation ibe yizinto ezincibilikayo ngokwenziwa mhlophe, ezingawashwa futhi zisuswe ukuze kuthuthukiswe ubumhlophe bemikhiqizo ye-kaolin.Kodwa-ke, ukuhlanza ngamakhemikhali kubiza kakhulu futhi kuvame ukusetshenziswa ku-kaolin concentrate, edinga ukuhlanzwa okwengeziwe ngemva kokususwa kokungcola.
Ukuthosa ukuhlanzeka: umehluko ekwakhekeni kwamakhemikhali kanye nokuphinda kusebenze phakathi kokungcola ne-kaolin kungasetshenziselwa ukugazinga kukazibuthe, ukugazinga okunezinga lokushisa eliphezulu noma ukugazinga nge-chlorination ukuze kukhishwe ukungcola okufana ne-iron, ikhabhoni ne-sulfide ku-kaolin.Le ndlela ingathuthukisa ukusebenza kabusha kwamakhemikhali emikhiqizweni e-calcined, ithuthukise kakhulu ubumhlophe be-kaolin, futhi ithole imikhiqizo ye-kaolin yezinga eliphezulu.Kodwa okubi kokuwoswa kokuhlanza ukuthi ukusetshenziswa kwamandla kukhulu, kulula ukubangela ukungcoliswa kwemvelo.
Ngobuchwepheshe obubodwa kunzima ukuthola i-kaolin yebanga eliphezulu igxile.Ngakho-ke, ekukhiqizeni kwangempela, siphakamisa ukuthi ukhethe umenzi wemishini yokucubungula amaminerali oqeqeshiwe.Ukwenza isilingo sokucutshungulwa kwezimbiwa kanye nokusebenzisa ubuchwepheshe bokucubungula okuningi ukukhulisa ikhwalithi ye-Kaolin.
Isikhathi sokuthumela: Apr-06-2020