Abakhiqizi be-alumina emhlophe exutshwe kahle bathuthukisa kanjani ubulukhuni bomkhiqizo?
Kungani amakhasimende ekhetha i-alumina emhlophe exutshwe? Isizathu esiyinhloko ubulukhuni bayo obungavamile—ngobulukhuni be-Mohs obungu-9, obulandela idayimane kuphela. Kodwa lobu “bulukhuni” buhlanganisa ubunzima obukhulu. Ngisho naphakathii-alumina emhlophe ehlanganisiweUma sibheka imikhiqizo, umehluko omncane enanini lokuqina ungaholela ekubekweni kwemakethe okuhluke kakhulu kanye namanani ezinhlelweni zokusebenza eziphezulu. Ngakho-ke, ukuthuthukisa ukuqina komkhiqizo akuyona nje isiqubulo sethu thina bakhiqizi—ubuchwepheshe bangempela obufakwe kuzo zonke izinyathelo kusukela ezintweni zokusetshenziswa kuya ekusetshenzisweni. Njengoba ngineminyaka engaphezu kwamashumi amabili embonini, ngikholwa ukuthi impumelelo incike ekugxileni kakhulu kulezi zindawo ezibalulekile.
Isango Lokuqala: Izinto Zokusetshenziswa—Imithombo Engcolile Iholela Emzamweni Ongasasebenzi
Njengoba isisho sithi, “Ngisho nompheki onekhono kakhulu akakwazi ukupheka ukudla ngaphandle kwelayisi.” “Ilayisi” lethu liyi-i-alumina powderr. Izinto eziyinkimbinkimbi lapha zidlulela ngalé nje kwesibalo esisodwa sobumsulwa.
Ubumsulwa buyisisekelo: Leli iphuzu eligugile, kodwa kumele ligcizelelwe. Okuqukethwe kwe-aluminium oxide (Al₂O₃) kumele kugcinwe ngokuqinile ngaphezu kuka-99.5%, okungcono kufinyelele ku-99.7% noma ngaphezulu. Ukungcola okufana ne-sodium (Na₂O), i-silicon (SiO₂), kanye ne-iron (Fe₂O₃) kufana nezixhumanisi ezibuthakathaka. Emazingeni okushisa aphezulu, kwakha izigaba zengilazi ezincibilika kancane—njengokufaka amaconsi ambalwa amanzi ebhulokini eliqinile leqhwa, okonakalisa ngokushesha ubuqotho besakhiwo sonke. Ngakho-ke, lapho uthenga izinto zokusetshenziswa, umuntu kufanele agcine amehlo akhe ehlutshiwe njengezinsimbi zethusi. Iqoqo ngalinye kumele lihambisane nemibiko yokuhlola enegunya, futhi umuntu kufanele agcine incwadi ecacile engqondweni.
Ubuqili besakhiwo sekristalu nomsebenzi: Ngisho naphakathiizimpushana ze-alumina, umehluko phakathi kwe-alumina ene-calcined kanye ne-alumina yezimboni evamile ubalulekile. Sithanda "i-alumina ene-calcined." Le nto idlula ekucutshungulweni kokushisa okuphezulu okuqedela ukuguqulwa kwayo kwekristalu, okuqinisekisa ukuzinza okuphezulu kanye nokuncipha okulawulwayo. Okubaluleke kakhulu, amakristalu ayo akhula ngokuphelele ngama-pores ambalwa angaphakathi. Lokhu kuyivumela ukuthi ihlangane ngokuqinile nangokulinganayo ezithandweni zethu ze-arc, okuholela kumakristalu e-corundum aqinile ngokwemvelo futhi aqine kakhulu. Ungakhohliswa yizimpushana ze-alumina zezimboni ezishibhile—ukusabela kwazo ngokweqile kanye nokwakheka okungahambisani kuholela kumakristalu akhiwe kabi, okwenza ubulukhuni bungabi khona ukuqinisekisa.
Isigaba Sesibili: Ukuncibilika—Ukushisa Okwanele Kulingana Nomzamo Olahlekile
Lesi yisigaba esibaluleke kakhulu, esidinga ubuchwepheshe—empeleni, indlela “esidlala ngayo ngomlilo.” Uma isithando sikagesi sesivutha, konke kumayelana nemali yangempela kanye nesikhathi esibalulekile sokuqina komkhiqizo.
Izinga lokushisa “liwumphefumulo”: Ukuncibilikisa i-alumina emhlophe ehlanganisiwe kudinga amazinga okushisa angaphezu kuka-2000°C. Kodwa ukuphakama akuhlali kungcono, futhi ukugcina izinga lokushisa elihlala njalo akwanele. Siphishekela “ukushisa okufanayo okushisa okuphezulu.” Lokhu kusho ukuthi igumbi lesithando kumele ligcine amazinga okushisa azinzile, alinganayo, okuvumela i-alumina encibilikisiwe ukuthi iqedele ngokugcwele nangokulinganayo inqubo yokuncibilikisa nokwenza i-crystallization. Uma amazinga okushisa eshintshashintsha kakhulu noma izindawo zasendaweni zihlala zingashisi kakhulu, kuzokwakheka “izinto ezingancibilikisiwe” noma izindawo ezingancibilikisiwe ngokuphelele. Lezi zindawo ziba yizixhumanisi ezibuthakathaka ebulukhuni bomkhiqizo. Abasebenzi abangochwepheshe bangahlulela isimo sesithando ngokunemba okucishe kube okuphelele ngokulalela umsindo we-arc nokubuka umbala womlilo—konke kusekelwe kokuhlangenwe nakho.
Ubuciko "Bokucwenga": Ukuncibilikisa kukodwa akwanele; ukungcola kumele "kususwe." Ngesikhathi sokuncibilikisa, amasu afanele avumela ukungcola okulula (ikakhulukazi ama-silicates) ukuba kukhuphukele phezulu, kwakha ungqimba "lwe-silica slag" olube selususwa. Lapho lokhu kwenziwa ngokucophelela, insimbi encibilikisiwe iba msulwa kakhulu. Lokhu kuphumela ekucwengeni okuphezulu kwe-corundum ekristalisiwe, futhi ngenxa yalokho, ubulukhuni obukhulu. Kufana nokupheka umhluzi omuhle: ukuphuza njalo ukungcola kuqinisekisa isobho elicacile, elimnandi, nelinambitheka kahle.
Izinga lokupholisa "liyisici esiyinhloko": Ukupholisa ngemva kokuncibilika akuyona nje indaba yokukuvumela ukuthi kuphole ngokungahleliwe. Ukulawula izinga lokupholisa kubalulekile. Inqubo yokupholisa ehamba kancane futhi efanayo ikhuthaza amakristalu amakhulu, aphelele e-corundum anemingcele ecacile yokusanhlamvu. Okusanhlamvu okuqinile, okuqinile kuveza ubulukhuni obukhulu. Nokho, ukupholisa okusheshayo kuvimbela amakristalu ukuthi akhule ngokugcwele futhi kudala ukucindezeleka okukhulu kwangaphakathi, ekugcineni kubeke engcupheni ubulukhuni nokuqina. Yingakho ama-ingot ethu amakhulu edlula inqubo yokupholisa "ephekwe kancane" - ayikwazi ukusheshiswa.
Isigaba Sesithathu: Ukuchoboza Nokuhlela—Umsebenzi Onzima, Ubuciko Obuhle, Ukulondoloza Ingqikithi
Izigaxa ezinkulu ze-fusedi-alumina emhlophe ehlanganisiwekakade inobulukhuni obuchaziwe. Kodwa uma ukuchoboza nokucubungula okulandelayo kwenziwa ngokunganaki, “kungalimaza imizamo yethu,” konakalise umkhiqizo wobulukhuni obuphezulu otholakale kanzima.
Indlela yokuchoboza ibalulekile: Ungalokothi uthathe izindlela ezinqamulelayo ngokusebenzisa imishini enamandla amakhulu okushaya abangela ukuchoboza ngokweqile. Sibeka phambili ama-crusher anjenge-double-roll crushers kanye nama-jaw crushers asebenzisa izenzo "zokucindezela" kanye "nokugunda", kancane kancane anciphisa izinto kusukela ezingcezu ezinkulu kuya kusayizi wezinhlayiya ezidingekayo. Lokhu kwandisa ukulondolozwa kwesakhiwo sekristalu esingokwemvelo sezinhlayiya futhi kunciphisa ukudalwa kwemifantu emincane yangaphakathi. Uma ama-hammer crushers esetshenziselwa ukushaya ngamandla, izinhlayiya eziningi zingabonakala ziphelele ngaphandle kodwa zonakaliswe kakhulu ngaphakathi. Ama-micro-powder anjalo azophuka ngaphansi kokucindezeleka ngesikhathi sokusetshenziswa kwangempela, okwenza ubulukhuni bawo obukhulu bungabi namsebenzi.
Ukunemba kokuhlukaniswa kubaluleke kakhulu: Ukuqina kubonakala ekugcineni ngezinhlayiya ngazinye. Uma ukusatshalaliswa kosayizi wezinhlayiya kubanzi kakhulu—ngezinye izinhlayiya ezimahhadlahhadla kanti ezinye zincane kakhulu—umsebenzisi uzothola imiphumela engaguquki ngesikhathi sokuqhumisa isihlabathi noma ukwenza isikhunta. Lokhu kungenxa yokuthi amandla asetshenziswayo awalingani. Ngakho-ke, ukuhlukaniswa okuqondile kwe-hydraulic noma kwe-pneumatic kubalulekile. Ukuhlunga izinhlayiya zibe yizigaba zobukhulu obuqinile kuqinisekisa ubukhulu bezinhlayiya obuhambisanayo ngaphakathi kweqoqo ngalinye. Lokhu kuvumela zonke izinhlayiya ukuthi zithwale futhi zidlulise amandla ngendlela efanayo, okwandisa ubulukhuni bomkhiqizo kanye nokusebenza kahle kokugaya. Kufana nebutho: amasosha anobude obufanayo namandla akha amandla amakhulu; ingxube yokuphakama nokwakha iba yiqembu elingahlelekile.
Ukuthuthukisa ubulukhuni be-alumina emhlophe ehlanganisiwe kuwumzamo ohlelekile. Kusukela ekuthathweni kwezinto zokusetshenziswa kuya ekuthunyelweni kokugcina, isinyathelo ngasinye kumele sibe nesici. Kuvivinya ubuqotho, isineke, kanye nobuciko babakhiqizi bethu. Emakethe yanamuhla encintisana kakhulu, lapho ukuqonda kwamakhasimende kukhula khona, ukuthembela emikhiqizweni ephansi noma ezimpini zamanani kuzoholela kuphela endleleni encane.
Kuphela ngokuhlala ugxile—ukuhlanza izinto zokusetshenziswa zibe msulwa kakhulu, ukwazi amasu okuncibilikisa ukuze kube ngcono, kanye nokulola ukunemba kokucubungula—imikhiqizo yethu ye-alumina emhlophe ehlanganisiwe ingafinyelela ubulukhuni obungenakuqhathaniswa. Lokhu kuzoqinisekisa indawo yethu emakethe ephezulu futhi kunikeze inani elifanele. Lokhu akuyona nje inselele yobuchwepheshe; kuyindlela yokusinda nokukhula kwabakhiqizi be-alumina emhlophe ehlanganisiwe.