Uyini umehluko phakathi isitini esiphakeme se-alumina nesitini sobumba

Izitini ezine-alumina ephezulu engasindi ngokuvamile zisebenzisa i-bauxite clinker ephezulu ye-alumina kanye nenani elincane lobumba. Ngemva kokugaywa, zithululwa futhi zenziwe ngendlela yodaka ngendlela yokukhiqiza igesi noma indlela yegwebu, futhi zishiswe ku-1300-1500 ° C. Kwesinye isikhathi i-alumina yezimboni ingasetshenziswa esikhundleni sengxenye ye-bauxite clinker. Isetshenziselwa ungqimba lwe-lining kanye nokushisa okufakwayo komlilo weziko lamatshe, kanye nezingxenye ezingagqwalile futhi zikhutshulwe izinto ezincibilikisiwe eziqinile ezisezingeni eliphezulu. Lapho uthintana ngqo nelangabi, izinga lokushisa elingaphezulu akufanele libe ngaphezu kuka-1350 ℃.

Izitini zobumba ezilula, ama-thermal insulation refractories abhekisela kuma-refractories ane-porosity ephezulu, i-low bulk density kanye ne-conductivity ephansi yokushisa. Ama-thermal insulation refractories abizwa nangokuthi ama-lightweight refractories, ahlanganisa imikhiqizo ye-thermal insulation refractory, ama-refractory fibers kanye nemikhiqizo ye-Fiber refractories. I-thermal insulation refractories ibonakala nge-porosity ephezulu, ngokuvamile i-40% -85%; ukuminyana kwenqwaba ephansi ngaphansi kuka-1.5g/cm3; ukusebenza okuphansi kwe-thermal, ngokuvamile okungaphansi kuka-1.0W (mK). Isebenza njengezinto zokuvikela ukushisa eziko ezimbonini, ezinganciphisa ukulahlekelwa ukushisa kweziko, zonge amandla, futhi zinciphise ikhwalithi yezinto ezisetshenziswayo ezishisayo. I-thermal insulation refractories inamandla angalungile emishini, ukumelana nokuhuzuka kanye nokumelana nokugqwala kwe-slag, futhi ayifanele isakhiwo esithwala umthwalo wehhashi kanye nokuxhumana okuqondile ne-slag, i-charge, insimbi encibilikisiwe nezinye izingxenye.

Kunomehluko kokuqukethwe kwe-aluminium, isisindo seyunithi, izinga lokushisa lokusetshenziswa, nombala. Isibonelo: izitini ze-alumina eziphakeme ezingama-75 nezitini zobumba ezingama-43, amayunithi angama-75 anesisindo esingaphezu kuka-4.5kg. 43 cishe 3.65kg, izinga lokushisa 75 high alumina mayelana 1520, 43 of izitini cishe 1430, umbala 75 kumhlophe, futhi 43 kuyinto loess. Ngamafuphi, umehluko mkhulu.