Ukusebenza komkhiqizo:Inokuqina okuqinile kwevolumu yokushisa okuphezulu, ukumelana nokushaqeka okuhle kakhulu kokushisa, ukumelana nokugqoka, ukumelana nokugqwala kwamakhemikhali nezinye izici.
Ukusetshenziswa okuyinhloko:Isetshenziswa kakhulu ezindaweni zoguquko zamakhilni asimende ajikelezayo, izithando zomlilo ezibolayo, imigudu yomoya ephakeme, nezinye izisetshenziswa ezishisayo ezidinga ukumelana nokushaqeka okushisayo.
Izici zomkhiqizo:Njengezinto eziyisisekelo zomkhakha we-refractory, izitini eziphakeme ze-alumina zinezici zokuphika okuphezulu, izinga lokushisa eliphezulu lokuthambisa umthwalo (cishe 1500 ° C), kanye nokumelana nokuguguleka okuhle. Zisetshenziswa kabanzi kuma-kilns ezimbonini ezimbonini ezahlukahlukene. Kodwa-ke, ngenxa yokuqukethwe okuphezulu kwesigaba se-corundum yezitini ezijwayelekile ze-alumina eziphakeme, amakristalu esigaba se-corundum emikhiqizweni e-sintered makhulu, futhi ukuqhekeka nokuxebuka kujwayele ukwenzeka lapho kuhlangabezana nezimo zokupholisa ngokushesha nokushisa. Ukuzinza kokushaqeka okushisayo ngaphansi kwezimo zokupholisa amanzi kwe-1100 ° C kuphela Kungafinyelela izikhathi ezingu-2-4. Ohlelweni lokukhiqiza usimende, ngenxa yemikhawulo yokushisa eshisayo kanye nezidingo zokusebenza zezinto eziphikisayo ukuze zinamathele esikhumbeni se-alumina, izitini eziphakeme ze-alumina zingasetshenziswa kuphela endaweni yenguquko ye-rotary kiln, umsila womlilo kanye ne-preheater yesithando somlilo. .
Izitini eziphakeme ze-alumina eziphikisana nokuqhekeka ziyizitini eziphezulu ze-aluminium ezinezakhiwo eziphikisana nokuvutha ezikhiqizwa ngokusekelwe ku-clinker ye-aluminium ephezulu futhi yengezwe nge-ZrO2 noma ezinye izinto. Zingahlukaniswa zibe izigaba ezimbili, enye i-anti-flaking high-alumina izitini eziqukethe i-ZrO2, kanti enye i-Uhlobo lokuqala i-anti-flaking high alumina brick engaqukethe i-ZrO2.
Izitini ezi-anti-spalling high-alumina zingamelana nemithwalo yokushisa ephezulu, azinciphisi ngevolumu futhi zibe nokunwebeka okufanayo, azinwabuki noma zigoqe, zibe namandla aphezulu okushisa ajwayelekile kanye namandla okushisa aphezulu, izinga lokushisa eliphezulu lokuthambisa izinga lokushisa, futhi ube nokumelana nokushisa okuhle. Ingakwazi ukumelana nomthelela wokushintsha kwezinga lokushisa okungazelelwe noma ukushisa okungalingani, futhi ngeke iqhekeke noma ixebuke. Umehluko phakathi kwezitini eziphakeme ze-alumina ezilwa nokuphehla eziqukethe i-ZrO2 nezitini ze-alumina eziphakeme eziphikisayo ezivuthayo ngaphandle kwe-ZrO2 usezindleleni zazo ezihlukene zokunqanda ukubhamuka. Izitini eziphakeme ze-alumina ezi-ZrO2 eziqukethe i-anti-flaking zisebenzisa izinto ze-zircon ukuze zisebenzise ukumelana nokugqwala okuhle kakhulu. I-ZrO2 imelana nokuguguleka kwesulphur-chlor-alkali. Ngesikhathi esifanayo, emazingeni okushisa aphezulu, i-SiO2 equkethwe ku-zircon izobhekana nokuguqulwa kwesigaba se-crystal kusuka ku-cristobalite kuya esigabeni se-quartz, okuholela kumphumela othile wokwandisa umthamo, ngaleyo ndlela kuncishiswe ingozi yokuvimbela isulfure-chlor-alkali. Ngesikhathi esifanayo, ivimbela ukusabalalisa phakathi nezinqubo ezishisayo nezibandayo; anti-flaking high alumina izitini ezingenayo i-ZrO2 zikhiqizwa ngokungeza i-andalusite ezitini eziphakeme ze-alumina. I-andalusite emkhiqizweni isetshenziselwa ukuhlanganiswa kwesibili kuhhavini likasimende. Ikhiqiza umphumela wokunweba omncane ongabuyiseleki emuva ukuze umkhiqizo unganciphi lapho upholile, uqede ingcindezi yokuncipha futhi uvimbele ukuxebuka kwesakhiwo.
Uma kuqhathaniswa ne-anti-spalling high-alumina izitini ezingenayo i-ZrO2, izitini ze-anti-spalling high-alumina eziqukethe i-ZrO2 zinokumelana okungcono nokungena nokuguguleka kwezakhi zesulfure, i-chlorine ne-alkali, ngakho-ke zinezakhiwo ezingcono zokulwa nokuqubuka. Kodwa-ke, ngenxa yokuthi i-ZrO2 iyinto engavamile, iyabiza , ngakho-ke izindleko nentengo ziphakeme.Izitini eziphezulu ze-alumina ezi-anti-flaking eziqukethe i-ZrO2 zisetshenziswa kuphela endaweni yenguquko yamakhilni osimende ajikelezayo. Izitini eziphezulu ze-alumina ezi-anti-flaking ezingenayo i-ZrO2 zisetshenziswa kakhulu ezithandweni zokubola zemigqa yokukhiqiza usimende.
Isikhathi sokuthumela: Mar-28-2024
