Ezimbonini lapho ukushisa okukhulu kuyinselele eqhubekayo, ukukhetha kwezinto eziphikisayo kungenza noma kuphule ukusebenza kahle, ukuphepha, kanye nokusebenza kahle kwezindleko. Udaka oluphezulu lwe-alumina refractory igqama njengento eyisisekelo, eyakhelwe ukumelana namazinga okushisa angapheli, ukuguguleka kwamakhemikhali, nokuguga kwemishini. Kungakhathaliseki ukuthi wenza i-metallurgy, izitsha zobumba, ezakhiwe ngezingilazi, noma yimuphi umkhakha odinga ibhondi ekwazi ukumelana nokushisa, lolu daka olukhethekile luletha ukusebenza okungenakuqhathaniswa okunye okuhlukile okungenakufana. Ake sihlole ukuthi kungani udaka oluphezulu lwe-alumina refractory luyinketho ephezulu yezinhlelo zokusebenza ezibucayi zokushisa okuphezulu emhlabeni jikelele.
Okokuqala nokubalulekile, udaka oluphakeme lwe-alumina refractory luhamba phambili ezinhlelweni zensimbi, umkhakha lapho amazinga okushisa evamise ukukhuphuka ngaphezu kuka-1500°C. Ezigayweni zensimbi, isetshenziswa kakhulu ukuhlanganisa izitini eziphikisayo ezifuleni eziqhumayo, amaladi, ama-tundishes, nasezithandweni zikagesi ze-arc. Okuqukethwe kwe-alumina ephezulu (imvamisa engu-70% kuya ku-90%) kukunika ukugoqa okukhethekile, ukuvimbela ukuncibilika noma ukuwohloka ngisho nangaphansi kokushisa okukhulu kwensimbi encibilikisiwe. Ukwengeza, imelana nokugqwala okuvela ku-slag encibilikisiwe, ama-oxide ensimbi, nezinye izinto ezinolaka ezivamile ekukhiqizeni insimbi. Lokhu kuqina kunciphisa isikhathi sokuphumula esibangelwa ukwehluleka kwe-refractory, ukuqinisekisa ukusebenza okuqhubekayo nokwehlisa izindleko zokunakekelwa kwabakhiqizi bensimbi.
Izimboni ze-ceramics nezingilazi nazo zithembele kakhulu odakeni oluphezulu lwe-alumina refractory. Izikhonkwane zobumba, ezisetshenziselwa ukudubula izitsha zobumba, amathayela, nezitsha zobumba ezithuthukisiwe, zisebenza emazingeni okushisa aphakathi kuka-1200°C no-1800°C. Udaka oluphezulu lwe-alumina luhlinzeka ngesibopho esiqinile, esizinzile sokushisa kumalayini aphikisayo kulawa mahhala, agcina ubuqotho besakhiwo ngisho naphakathi kwemijikelezo yokushisisa nokupholisa ephindaphindiwe. Ezithandweni ezincibilikisa ingilazi, lapho izinga lokushisa lingaphezu kuka-1600°C, kubalulekile ukumelana nodaka ekushiseni okushisayo. Ivimbela ukuqhekeka nokuqhekeka okubangelwa ukushintshashintsha kwezinga lokushisa ngokushesha, kunwebe ubude besikhathi sokuphila kwezindwangu zesithando somlilo nokuqinisekisa ikhwalithi yengilazi engaguquki. Ngokungafani nodaka lwe-alumina ephansi, ayisebenzi lapho kuncibilika ingilazi, igwema ukungcola okungalimaza amaqoqo emikhiqizo yengilazi.
Esinye isicelo esibalulekile sitholakala ezitshalweni zamandla e-petrochemical kanye nezishisayo. Kumabhoyela, izishisi, kanye nezishintshisi, amabhondi e-alumina aphezulu e-refractory mortar bond refractory izingxenye ezibhekene nezinga lokushisa eliphezulu, amagesi aphumayo, nokuhlaselwa kwamakhemikhali okuvela kumafutha kanye nemikhiqizo. Ezitshalweni zamandla aphehlwa ngamalahle, imelana nemvelo yokugwaza komlotha wezimpukane kanye nemiphumela yokugqwala yama-sulphur oxides. Kuma-crackers we-petrochemical kanye nama-reformers, amelana nokucekelwa phansi okuvela kuma-hydrocarbons kanye nesitimu esinezinga lokushisa eliphezulu, okuqinisekisa ukukhiqizwa kwamandla okuphephile nokusebenza kahle. Izakhiwo zayo zokunamathela ezinhle kakhulu ziyenza ibe ilungele ukulungisa ama-linings abonakele, ukunciphisa isikhathi sokuphumula nokwelula impilo yesevisi yemishini ebalulekile.
Ngale kwalezi zimboni eziwumgogodla, udaka oluphezulu lwe-alumina refractory luthola ukusetshenziswa ezimbonini zokushiswa kwemfucuza, lapho lusingatha khona amazinga okushisa aphezulu namagesi agqwalayo akhiqizwa ukushisa imfucuza kamasipala neyezimboni. Kubalulekile futhi ezindaweni eziyisisekelo zokubunjwa kolwelwesi kanye nezinsimbi ezisetshenziswa ekubumbeni izinsimbi. Ukuguquguquka kwayo, kuhlanganiswe nokumelana nokushisa okuphezulu nokuqina, kuyenza ibe yisixazululo sanoma isiphi isicelo esidinga isibopho esithembekile ezindaweni ezishisayo kakhulu.
Uma ukhetha udaka oluphezulu lwe-alumina refractory, kubalulekile ukukhetha umkhiqizo wekhwalithi ephezulu ohlangabezana nezindinganiso zomkhakha. Bheka udaka olunosayizi wezinhlayiyana ezingaguquguquki, ukunamathela okuqinile, nokumelana nokushaqeka okuhle kakhulu okushisayo. Udaka lwethu oluphakeme lwe-alumina refractory lukhiqizwa kusetshenziswa izinto zokusetshenziswa ze-premium kanye namasu okucubungula athuthukile, okuqinisekisa ukuthi luletha ukusebenza okukhethekile ezinhlelweni ezifunwa kakhulu. Kungakhathaliseki ukuthi udinga ukufaka umugqa wesithando somlilo esikhulu sensimbi, ulungise ihhavini le-ceramic, noma ulondoloze ibhayela lesitshalo samandla, udaka lwethu luhlinzeka ngokwethembeka nokuphila isikhathi eside okudingayo ukuze ugcine imisebenzi yakho isebenza kahle.
Ungafaki ebucayini ekusebenzeni uma kuza ezinhlelweni zokushisa eziphezulu. Khetha udaka oluphakeme lwe-alumina refractory lokumelana nokushisa okuphakeme, ukumelana nokugqwala, nokuqina. Xhumana nathi namuhla ukuze ufunde kabanzi mayelana nemikhiqizo yethu nokuthi ingakuthuthukisa kanjani ukusebenza kahle kwakho futhi yehlise izindleko zokuyilungisa.
Isikhathi sokuthumela: Dec-03-2025
