Yiziphi ukusetshenziswa kanye nezinqubo zokukhiqiza izitini eziphezulu ze-alumina refractory?

isitini esiphezulu se-alumina refractory, okungukuthi, i-aluminium silicate refractory material enokuqukethwe kwe-alumina engaphezu kwama-48%. Yakhiwe futhi ibalwe kusuka ku-bauxite noma ezinye izinto zokusetshenziswa ezinokuqukethwe okuphezulu kwe-alumina. Ukuzinza okuphezulu kwe-thermal, i-refractoriness ngaphezu kwe-1770 ℃. Ukumelana ne-slag kungcono.

izitini eziphakeme ze-alumina ezikhanyayo zisetshenziselwa ikakhulukazi ulwelwesi lweziko eziqhumayo, izitofu eziqhumayo, uphahla lweziko zikagesi, iziko eliqhumayo, iziko elivuthayo, kanye neziko elijikelezayo. Ngaphezu kwalokho, izitini eziphakeme ze-alumina nazo zisetshenziswa kabanzi njengezitini zokuhlola ezivuselelwe eziko, amapulaki okuthulula amasistimu, izitini ze-nozzle, njll. Nokho, intengo yezitini eziphakeme ze-alumina iphakeme kunaleyo yezitini zobumba, ngakho-ke akudingekile ukusebenzisa. izitini eziphezulu ze-alumina lapho izitini zobumba zingahlangabezana nezidingo.

Isithombe sangempela sesitini esiphezulu se-alumina refractory

Indlela yokukhiqiza yokubumba yesitini esiphezulu se-alumina refractory nesitini sobumba iyafana. Amanye amapharamitha wenqubo kuphela ahlukile. Kukhona nezinqubo ezinjengokuchoboza → ukuxuba → ukwakha → ukomisa → ukudubula → ukuhlola → ukupakisha. Ukucindezeleka okucindezelayo kungcono ekushiseni okuphansi kodwa kuncishiswe kancane ekushiseni okuphezulu, ngakho-ke ukupakishwa kuhhavini kungaphansi kwemitha eyi-1. Inqubo yokukhiqiza izitini eziphezulu ze-alumina refractory kanye nezitini zobumba eziningi ze-clinker ziyafana. Umehluko wukuthi ingxenye ye-clinker ezithakweni iphezulu, ingaba phezulu njenge-90% -9%. Isibonelo, izitini ezikhanyelayo ze-alumina ephezulu ezifana no-Ⅰ kanye no-Ⅱ ngokuvamile zingu-1500～1600℃ uma zishiswa kuhhavini lomhubhe.

Ukuzijwayeza ukukhiqiza kufakazele ukuthi ngaphambi kokuchotshozwa, i-high-aluminium clinker ihlelwa ngokuqinile futhi ihlukaniswe, futhi igcinwe ngezigaba. Ukusetshenziswa kwe-bauxite clinker kanye nendlela yokugaya ehlanganisiwe yobumba kungathuthukisa ikhwalithi yomkhiqizo.

Isithombe sangempela sesitini esiphezulu se-alumina refractory

Esinye sezakhiwo ezibalulekile zokusebenza kwezitini eziphezulu ze-alumina refractory amandla esakhiwo emazingeni okushisa aphezulu, ngokuvamile ahlolwe izinga lokushisa elithambile ngaphansi komthwalo. Izakhiwo ze-high-temperature creep nazo zikalwa ukuze zibonise amandla esakhiwo sezinga lokushisa eliphezulu. Imiphumela yokuhlola ibonisa ukuthi izinga lokushisa elithambile ngaphansi komthwalo likhuphuka ngokunyuka kokuqukethwe kwe-Al2O3.

Okungenhla yisingeniso ekusetshenzisweni nasekukhiqizeni izitini eziphezulu ze-alumina refractory, ngithemba ukuthi kuzokusiza kuwe.