Mene ne bambanci tsakanin babban tubalin alumina da tubalin yumbu?

Mutanen da ke cikin masana’antar refractory sun san abin da tubalin yumbu da tubalin alumina masu girma suke daga bayyanar, amma idan ka tambaye shi ya bambanta tsakanin tubalin yumbu da manyan tubalin alumina, mutane da yawa ba su sani ba. Yau Zhengzhou Sheng Energy refractory masana’antun za su yi bayani:

Yawancin tubalin alumina yawanci ana yin su da babban alumina bauxite clinker tare da ɗan ƙaramin yumbu, bayan an niƙa su, ana zubar da su a siffa ta hanyar laka ta hanyar samar da iskar gas ko hanyar kumfa, sannan a harba 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 a cikin hulɗa kai tsaye tare da harshen wuta, yanayin hulɗar saman ba zai zama sama da 1350 ℃ ba.

High alumina tubalin suna da mafi girma refractoriness da load softening zafin jiki fiye da yumbu tubalin, kuma suna da mafi slag lalata juriya (musamman ga acid slag), da kuma wadannan kaddarorin ƙara da karuwa da Al2O3 abun ciki, amma thermal kwanciyar hankali ba shi da kyau a matsayin yumbu tubalin. High alumina tubalin suna da babban yawa, low porosity, high inji ƙarfi da sa juriya. Shugaban tanderun wutar lantarki na ɗakin konewar tanda na coke da tubalin ƙasa na ɗakin carbonization an gina su tare da manyan tubalin alumina, kuma tasirin ya fi kyau; amma bai dace da bangon ɗakin carbonization ba, saboda manyan tubalin alumina suna da wuyar yin sasanninta a babban yanayin zafi. .

Tubalin yumbu, na’urori masu rufewa na thermal suna magana ne game da refractories tare da babban porosity, ƙarancin ƙarancin girma da ƙarancin ƙarancin zafi. Har ila yau ana kiran na’urorin haɓakar zafin jiki mai sauƙi, wanda ya haɗa da samfurori masu raɗaɗi na thermal, zaruruwan zaruruwa da samfuran fiber mai raɗaɗi. Thermal rufi refractories suna halin high porosity, kullum 40% -85%; ƙananan ƙananan yawa a ƙasa 1.5g / cm3; low thermal conductivity, gabaɗaya ƙasa da 1.0W (mK).

Yana aiki a matsayin kayan haɓakar thermal don kilns na masana’antu, wanda zai iya rage asarar zafi na kiln, adana makamashi, da rage ingancin kayan aikin zafi. Thermal rufi refractories da matalauta inji ƙarfi, abrasion juriya da slag lalata juriya, kuma ba su dace da load-hali tsarin na kiln da kai tsaye lamba tare da slag, cajin, narkakkar karfe da sauran sassa.

Tubalin yumbu sune samfuran refractory mai rauni, waɗanda zasu iya tsayayya da yashwar acidic slag da iskar acidic, kuma suna da ɗan ƙaramin juriya ga abubuwan alkaline. Tubalin yumbu suna da kyawawan kaddarorin thermal kuma suna da juriya ga saurin sanyi da saurin zafi.

The refractoriness na yumbu tubali ne kwatankwacin cewa na silica bulo, har zuwa 1690 ~ 1730 ℃, amma ta softening zafin jiki a karkashin kaya ne fiye da 200 ℃ kasa da na silica bulo. Saboda tubalin yumbu yana ƙunshe da lu’ulu’u masu yawa tare da babban refractoriness, shi ma ya ƙunshi kusan rabin ƙarancin narkewar lokacin gilashin amorphous.

Abin da ke sama shine bambanci tsakanin manyan tubalin alumina da tubalin yumbu. Ina fatan zai taimaka muku. Da fatan za a ji daɗin tuntuɓar mu idan kuna buƙata.