magnesia-alumina spinel

Magnesia-alumina spinel (magnesia-alumina spinel) na-ezo aka na akụrụngwa ejiri megharịa spinel refractory akụrụngwa iji magnesium oxide na aluminum oxide dị ka akụrụngwa. A naghị ahụkarị akụrụngwa n’okike, yana magnesia-aluminom spinel na-emepụta ihe na-arụ ọrụ nke ọma. Bauxite dabeere na sintered magnesia-aluminom spinel bụ nke bauxite dị elu nke nwere ọdịnaya Al2O3 karịa 76% na nnukwu ọkụ magnesia ntụ ntụ na-ere ọkụ na MgO ọdịnaya karịa 95%. Sintered na n’elu elu okpomọkụ.

Okwu Mmalite

Bauxite dabeere na sintered magnesia-aluminom spinel bụ nke bauxite dị elu nke nwere ọdịnaya Al2O3 karịa 76% na nnukwu ọkụ magnesia ntụ ntụ na-ere ọkụ na MgO ọdịnaya karịa 95%. Igwe ọkụ dị elu dị n’elu [1].

Njirimara nke aluminom-magnesium spinel

Bauxite dabeere na sintered magnesia-aluminom spinel bụ nke bauxite dị elu nke nwere ọdịnaya Al2O3 karịa 76% na nnukwu ọkụ magnesia ntụ ntụ na-ere ọkụ na MgO ọdịnaya karịa 95%. A na-eme ya na okpomọkụ dị elu, na-enwe nnukwu njupụta dị elu, ọdịnaya nke ịnweta ihe dị elu, ọka kristal emepụtara nke ọma, nhazi otu na ịdị mma. Magnesium-aluminom spinel nwere ezigbo nguzogide corrosion, corrosion siri ike na ikike spalling, ezigbo nguzogide slag, nkwụsi ike abrasion, nkwụsi ike ọkụ ọkụ, nkwụsi ike dị elu na njirimara arụmọrụ ndị ọzọ. Ọ bụ ezigbo akụrụngwa maka imepụta ngwaahịa refractory dị ka brik magnesia-aluminom spinel maka mpaghara okpomọkụ dị elu nke cement rotary kilns, brik ladle lining, na ladle castables. Magnesium-aluminom spinel na-eji ọtụtụ ebe na refractory ihe, ígwè smelting, ciment rotary kilns na iko ulo oru kilns[2].

Ngwa nke Al-Mg Spinel

Ọ nwere ezigbo nguzogide corrosion, nguzogide abrasion na nkwụsi ike dị mma nke thermal. Isi ihe eji eme ya: Nke mbụ, iji dochie ájá magnesia chrome iji mee brik magnesia-aluminom spinel brik maka ciment rotary kilns, nke ọ bụghị nanị na-ezere mmetọ chromium, kamakwa ọ nwere ezigbo nkwụsị spalling; nke abụọ, a na-eji ya eme ihe nkedo ladle, na-eme ka ọ dịkwuo mma The corrosion resistance of the metal plate lining. A na-eji ya eme ihe n’ọtụtụ ebe na ihe ndị na-atụgharị maka ígwè. Mmepụta nke spinel pre-synthetic nke dị elu na-enye akụrụngwa ọhụrụ maka mmepụta nke refractories na-adịghị ahụkebe na nke nwere ọdịdị dị elu dị ọcha[2].

dozie mkpebi

Enwere ụdị abụọ nke usoro ịgbaze ọkụ eletrik na usoro sintering. Usoro njikọ electrofusion na-eji alumina ụlọ ọrụ ma ọ bụ bauxite dị ọcha na ọkụ ọkụ magnesia (nke nwere eke ma ọ bụ oké osimiri (brine) mmiri na-ebu magnesium) n’ogo, ma gbazee na okpomọkụ dị elu nke ihe dịka 2200 ℃ n’ime ọkụ ọkụ eletrik. Usoro nchikota bụ iji usoro akụrụngwa akpọtụrụla n’elu, ma egweri, ịgwakọta, ịgba bọọlụ na calcining n’ime kiln rotary ma ọ bụ shaft kiln na okpomọkụ dị elu karịa 1800 ℃. N’ime brik ụfọdụ, alumina ụlọ ọrụ ma ọ bụ dị elu Mgbe ịdị ọcha bauxite clinker na-agbanye ala, a na-agbakwunye ya ma ọ bụ jikọta ya, gwakọta ya, ma mee ya dị ka ihe ndị a chọrọ, wee gbaa ọkụ na okpomọkụ dị elu iji mepụta brik magnesia-aluminom spinel brik, nke bụ. a na-ejikarị ya n’elu ọkụ ọkụ na-emeghe na akụkụ ndị ọzọ.