Zipangizo zazikulu zopangira alumina desiccant ndi ufa wa aluminiyamu wa hydroxide wa mafakitale, womwe ndi mtundu wa okusayidi woyambira wokhala ndi madzi okwana 3-5%, ndipo kuchepetsa kutentha kwa alumina hydroxide pa 900-1100℃ ndi 34.5%.
Njira yopangira alumina desiccant yogwira ntchito ndi iyi:
Aluminium hydroxide – kuumitsa – mphero mpaka 600 mesh, aluminiyamu hydroxide 300 ℃ rapid dehydration – disc molding – 12 hours activation treatment – kudzera mu shaft kiln 550 ℃ sintering.
1. Ufa wa aluminiyamu wa hydroxide wa mafakitale, womwe uli ndi chinyezi cha 3-5%, umaumitsidwa pa kutentha kwa 120℃ ndi zida zazikulu zoumitsira.
2. Pambuyo pouma, ufa wa aluminiyamu hydroxide umalowa mu kugaya kwakukulu kwa makina ndikuphwanya mpaka ma meshes 600. Kusalala kwake kumakhala kocheperako, kumakhala bwino kwambiri kuti ukhale njira yoyendetsera mpira. Tinthu tozungulira tomwe timapangidwa tilibe ufa komanso mphamvu zambiri.
3, ufa wa aluminiyamu hydroxide, kulowa mu dongosolo lochotsa mpweya mwachangu kuti liyambe kuuma, ufa wosalala wa aluminiyamu hydroxide mu mpweya wotentha kwambiri umakhala 0.10s, mfundo yopangira ndi iyi: aluminiyamu hydroxide mwa kuyika mu uvuni wokazinga mwachangu, komanso kuziziritsa mwachangu.
4, pogwiritsa ntchito mfundo ya mpira wa chipale chofewa, kupanga mpira wa alumina wothandizidwa, njirayi ingapangidwe ndi mainchesi osiyanasiyana a desiccant yothandizidwa ndi chonyamulira.
5, mpira wa tinthu ta alumina tomwe timayatsidwa timayima kwa maola 12, kutentha kwake ndi madzi kuti ziyambe kugwira ntchito.
6. Pomaliza, alumina yogwiritsidwa ntchito imayikidwa mu uvuni woyimirira, ndipo kutentha kwa kuwotcha ndi 550-700℃.
Nthawi yotumizira: Ogasiti-14-2019