Zomwe zimagwiritsidwa ntchito komanso njira zopangira mkulu aluminiyamu refractory njerwa?

njerwa yapamwamba ya aluminiyamu, ndiye kuti, aluminium silicate refractory material yokhala ndi aluminiyamu yoposa 48%. Amapangidwa ndikupangidwa kuchokera ku bauxite kapena zida zina zokhala ndi aluminiyamu wambiri. Kukhazikika kwakukulu kwamafuta, refractoriness pamwamba pa 1770 ℃. Kukana kwa slag kuli bwino.

njerwa zapamwamba zopangira amagwiritsidwa ntchito kwambiri poyatsira ng’anjo zoyaka moto, masitovu oyaka moto, madenga ang’anjo yamagetsi, ng’anjo zophulitsa, ng’anjo zoyatsira moto, ndi ng’anjo zozungulira. Komanso, mkulu aluminiyanje njerwa chimagwiritsidwanso ntchito kwambiri monga lotseguka m’moto regenerative cheke njerwa, mapulagi kwa kuthira machitidwe, nozzle njerwa, etc. njerwa zapamwamba za alumina komwe njerwa zadothi zimatha kukwaniritsa zofunikira.

Chithunzi chenicheni cha njerwa yapamwamba ya alumina refractory

Njira yopangira njerwa zapamwamba za alumina refractory ndi njerwa zadongo ndizofanana. Ndi magawo ena okha omwe amasiyana. Palinso njira monga kuphwanya → kusakaniza → kupanga → kuyanika → kuwombera → kuyang’ana → kuyika. The compressive kupsyinjika bwino kutentha otsika koma pang`ono pang`ono kutentha, kotero stacking mu uvuni ndi zosakwana 1 mita. Njira yopangira njerwa zapamwamba za alumini refractory ndi njerwa zadongo zamitundu yambiri ndizofanana. Kusiyana kwake ndikuti kuchuluka kwa clinker muzosakaniza ndikwambiri, komwe kumatha kufika 90% -9%. Mwachitsanzo, njerwa za aluminiyamu wapamwamba kwambiri monga Ⅰ ndi Ⅱ nthawi zambiri zimakhala 1500～1600℃ zikawotchedwa mung’anjo.

Zochita zopanga zatsimikizira kuti musanaphwanyidwe, cholumikizira cha aluminiyamu chapamwamba chimasanjidwa bwino ndikuyikidwa m’magulu, ndikusungidwa m’magulu. Kugwiritsiridwa ntchito kwa bauxite clinker ndi njira yophatikizira dongo yabwino yopera imatha kupititsa patsogolo malonda.

Chithunzi chenicheni cha njerwa yapamwamba ya alumina refractory

Chimodzi mwazinthu zofunikira zogwirira ntchito za njerwa zapamwamba za alumina ndi mphamvu zamapangidwe pamatenthedwe apamwamba, omwe nthawi zambiri amawunikidwa ndi kufewetsa kutentha kwa katundu. Zomwe zimakwera kwambiri zimayesedwanso kuti ziwonetse mphamvu zamapangidwe apamwamba. Zotsatira zoyesa zikuwonetsa kuti kutentha kofewetsa pansi pa katundu kumawonjezeka ndi kuchuluka kwa zinthu za Al2O3.

Zomwe zili pamwambazi ndizomwe zimayambira pakugwiritsa ntchito ndi kupanga njerwa zapamwamba za alumina refractory, ndikuyembekeza kuti zidzakuthandizani.