Features na bulogin alumina masu nauyi masu nauyi

Bulogin alumina masu nauyi masu nauyi yawanci ana kiran su tubalin rufe fuska mai zafi, wanda kuma ake kira bulogin insulation na thermal. Mahimmancin manufarsa shine rufin zafi da aikin kiyaye zafi. A cikin amfani na yau da kullun, ba a cikin hulɗar kai tsaye tare da zafin jiki na tanderun ba, kuma wani nau’in samfurin tubali ne wanda ke kusa da bangon tanderun kuma yana da tasirin zafi da kiyaye zafi.

Bulo mai girman alumina mai nauyi mai nauyi shine ɗayan ingantattun kayan da ke hana zafi a halin yanzu. Yana da halaye na babban ƙarfin matsawa, ƙarancin ƙarancin zafin jiki, kyakkyawan aikin rufewa, da ƙarancin farashi. An yi amfani dashi ko’ina a cikin ɗakunan rami na yumbu, na’urorin nadi, da kilns na jigilar kaya. Nau’in kilns, bangon bango, ana kuma amfani da su a cikin tanda daban-daban na dumama, murhun murhun wuta da sauran kayan aikin zafi, kayan aikin rufin zafi a cikin masana’antar ƙarfe da ƙarfe.

Maɗaukakin bulo na alumina kuma ana kiransa tubalin rufin alumina. Abu mai nauyi mai nauyi tare da abun ciki na alumina sama da 48%, wanda akasari ya ƙunshi mullite da lokacin gilashi ko corundum. Matsakaicin girma shine 0.4 ~ 1.35g/cm3. Porosity shine 66% ~ 73%, kuma ƙarfin matsawa shine 1 ~ 8MPa. Juriya girgiza thermal ya fi kyau. Yawancin lokaci, ana ƙara babban alumina bauxite clinker tare da ɗan ƙaramin yumbu, bayan an yi shi da kyau, ana zubar da shi ta hanyar laka ta hanyar samar da iskar gas ko hanyar kumfa, a harba shi a 1300-1500 ° C. Wani lokaci ana iya amfani da alumina na masana’antu don maye gurbin ɓangaren bauxite clinker. Ana amfani da shi don rufin rufin rufin rufin rufin katako, da kuma sassan da ba su da lalata da kayan narkakkar zafi mai ƙarfi. Lokacin da ake hulɗa kai tsaye tare da harshen wuta, yanayin hulɗar saman ba zai zama sama da 1350 ° C ba.