Njerwa zadongo zomangira njerwa Zopepuka zokanira Mtengo wa njerwa

Njerwa yophatikizika kwambiri ya aluminiyamu yapamwamba yokhala ndi mphamvu zopondereza kwambiri komanso kachulukidwe kwambiri. Kutentha kwa kuwombera kwa njerwa ya aluminayi ndi yofanana ndi njerwa wamba za aluminiyamu, zokhala ndi mphamvu zochepa komanso zotsika mtengo. Moyo wautumiki pa ng’anjoyo ndi wowirikiza kawiri wa njerwa wamba za aluminiyamu wamba. Izo zachokera wapadera kalasi bauxite clinker calcined mu ng’anjo rotary monga akaphatikiza (tirigu kukula 1smm-3smm), kulemera chiŵerengero: 40% ~ 45%, kuphatikiza bauxite clinker ufa ndi ufa wabwino: 45% mpaka 51%, Dongo lofewa. : 7% mpaka 10%, pang’ono kyanite ufa: 3 mpaka 5%, ndi zomatira zamkati zinyalala zamadzimadzi 4% mpaka 5% ndi zigawo zina.

Zogulitsa zenizeni

mawonekedwe a mankhwala

Ntchito yogulitsa: Njerwa zapamwamba za aluminiyamu zimagwiritsidwa ntchito makamaka pakuvundikira ng’anjo yamagetsi (pamwamba pang’anjo), ng’anjo yophulika (ng’anjo yamoto), khoma lamoto woyaka moto, khoma lachitofu, ladle, ngolo yachitsulo, ng’anjo ya simenti, ng’anjo yamagalasi, ndi zina zotero. mzere. Amagwiritsidwa ntchito kwambiri popanga chitsulo, kupanga zitsulo, mankhwala, simenti ndi mafakitale ena.

Njira yopangira: Njerwa yapamwamba kwambiri ya aluminiyamu ndi njerwa yokhala ndi aluminiyamu yokhala ndi okusayidi yopitilira 80%. Chifukwa kutentha kwa refractory ndi kwakukulu kuposa madigiri 1790 Celsius, ndi chinthu chotsutsa. Ndizinthu zomwe zimagwiritsidwa ntchito pazitsulo zazitsulo zotentha kwambiri. Amapangidwa ndi aluminiyamu yapamwamba kwambiri ya alumina bauxite clinker ngati chinthu chachikulu, dongo lofewa komanso zotayira zamkati ndi madzi amapepala monga chomangira chopanga matope, chomwe chimapangidwa ndi kukakamiza kwakukulu, kuyanika, ndi kuwombera kwakukulu. . Ndi njerwa ya sintered refractory.