Njengento ephikisayo esebenza kahle kakhulu,izitini ze-mullite ezilulaZithandwa kakhulu emikhakheni yezimboni yomhlaba wonke ngenxa yokushisa kwazo okuhle kakhulu, ukumelana nokushisa okuphezulu, kanye nezakhiwo ezilula. Njengoba zakhiwe ukuhlangabezana nezidingo eziqinile zemishini yokushisa okuphezulu, lezi zitini azigcini nje ngokunciphisa ukusetshenziswa kwamandla kodwa futhi zandisa impilo yesevisi yezitofu zezimboni, okwenza zibe ukukhetha okuhle kwamabhizinisi aphishekela ukusebenza kahle kanye nentuthuko esimeme.
Imininingwane yezitini ze-mullite ezilula ijwayelekile futhi ingenziwa ngezifiso ukuze ivumelane nezimo ezahlukene zezimboni. Amamodeli ayinhloko afaka phakathi i-JM23, JM25, JM26, JM27, JM28, JM30, kanye ne-JM32, enokuqukethwe kwe-alumina okusukela ku-40% kuya ku-77% kanye nokuqukethwe kwe-iron oxide okungadluli ku-1.0% (kwehle kuya ku-0.5% kumamodeli ahlanzekile kakhulu). Ubuningi bawo bungu-0.55g/cm³ kuya ku-1.35g/cm³, kanti amandla okuchoboza abandayo angu-1.0MPa kuya ku-3.5MPa, okuqinisekisa ukusebenza okuzinzile ngaphansi kwezimo ezahlukene zomthwalo. Izinga lokushisa lokuhlukaniswa lingu-1260℃ kuya ku-1760℃, izinga lokushisa lokuqala lokuthambisa umthwalo lingu-1080℃ kuya ku-1570℃, kanye nezinga lokushintsha elihlala njalo ngemuva kokushisa kokushisa okuphezulu lingu-1.5% kuya ku-0.5%. Usayizi ojwayelekile ungama-230x114x65mm, futhi osayizi abakhelwe ngokwezifiso bayatholakala ngokwezidingo zamakhasimende zokwakhiwa ngokhuni okungenamthungo.
Ukushisa kwezitini ze-mullite ezilula kungaphansi kuka-0.18W/(m·K) ku-200℃, okunganciphisa ngempumelelo ukulahleka kokushisa futhi kuthuthukise ukusetshenziswa kwamandla—inzuzo ebalulekile ekukhiqizweni kwezimboni. Zenziwe nge-alumina ne-silica ehlanzekile kakhulu, lezi zitini zakha isakhiwo sekristalu se-mullite esizinzile, esiqukethe inani elincane le-glass phase, i-cristobalite, noma i-corundum, okuthuthukisa kakhulu ukumelana kwazo nokushisa kanye nokumelana nokugqwala kwamakhemikhali. Zingathintana ngqo namalangabi, kuqedwe isidingo sezendlalelo ezengeziwe zokushisa futhi kube lula inqubo yokwakha.
Izitini ze-mullite ezilula zinezinhlobo eziningi zokusetshenziswa, ezihlanganisa i-metallurgy, i-ceramics, ingilazi, i-petrochemical kanye neminye imboni. Embonini ye-metallurgical, zisetshenziselwa ukwakheka kwezitofu ezishisayo, imizimba nezisezansi ze-blast furnace, kanye nezinsimbi zokushisa zikagesi, ezingagcini nje ngokugcina amazinga okushisa azinzile kodwa futhi zinciphise ukusetshenziswa kwamandla. Embonini ye-ceramic, ziyizinto ezifanele kakhulu zama-roller furnace, ama-shuttle furnace, nama-drawer furnace, okwenza kube lula ukufudumala okusheshayo kanye nokupholisa imijikelezo futhi kuthuthukiswe ukusebenza kahle kokukhiqiza.
Embonini yengilazi, zisetshenziswa kuma-regenerator esithando esincibilikisa ingilazi kanye neziteshi zokudla, ezingamelana namazinga okushisa aphezulu kanye nokuguguleka kwamakhemikhali ukuqinisekisa ikhwalithi yomkhiqizo. Embonini ye-petrochemical, zisetshenziselwa ukwakheka kwama-furnace okuqhekeka kwe-petroleum, ama-furnace okuguqulwa kwe-ammonia yokwenziwa, kanye nama-furnace oil gasification asele, angamelana nezimo zokusebenza ezinzima. Ngaphezu kwalokho, zisetshenziswa kabanzi kuma-furnace ahlukahlukene kagesi, ama-incinerator, kanye nemishini yokusabela yokushisa okuphezulu, enikeza ukuvikelwa kokushisa okuthembekile kanye nokusekelwa kwesakhiwo.
Uma kuqhathaniswa nezitini zendabuko ezingaphikisi, izitini ze-mullite ezilula zinezinzuzo ezisobala: ukuminyana okuphansi kunganciphisa isisindo sesithando kanye nomthwalo wesakhiwo, ukuhanjiswa kokushisa okuphansi kungonga u-15%-20% kaphethiloli, kanye nokuhlanzeka okuphezulu kuqinisekisa ukusebenza okuzinzile ezindaweni eziyinkimbinkimbi. Kungakhathaliseki ukuthi kuyizidingo ezijwayelekile noma izincazelo ezenziwe ngokwezifiso, zingahlangabezana nezidingo ezahlukahlukene zezimboni ezahlukene. Khetha izitini zethu ze-mullite ezilula zekhwalithi ephezulu ukukusiza ukunciphisa izindleko zokusebenza, ukuthuthukisa ukusebenza kahle kokukhiqiza, kanye nokufeza intuthuko eluhlaza neqhubekayo.
Isikhathi sokuthunyelwe: Ephreli-03-2026
