Kedu ụdị nnukwu brik alumina na-ejikarị na ulo oru kilns?

Brick alumina dị elu na-ezo aka ngwaahịa sintered nwere ihe karịrị 348% Al2O aluminosilicate ma ọ bụ alumina dị ọcha. N’ozuzu, brik alumina dị elu nwere ihe na-erughị 80% Al2O3, na ndị nwere ihe karịrị 80% Al2O3 ka a na-akpọ brik corundum. E jiri ya tụnyere brik ụrọ, brik alumina dị elu nwere uru dị ịrịba ama nke nnukwu refractoriness na okpomọkụ dị nro dị elu n’okpuru ibu. N’iji ụlọ ọrụ mmepụta ihe, brik alumina dị elu na-adaba n’ụdị ise ndị a.

(1) brik alumina dị elu nkịtị

Isi ihe mejupụtara nke brik bụ mullite, corundum na iko iko. Ka ọdịnaya nke Al2O3 na ngwaahịa na-abawanye, mulite na corundum na-abawanye, oge iko ga-ebelata ya, na refractoriness na elu okpomọkụ arụmọrụ nke ngwaahịa ga-abawanye otú ahụ. Nkịtị brik dị elu nke aluminom nwere usoro nke ọkụ na-eguzogide ọkụ karịa ngwaahịa ụrọ, ma bụrụ ihe nwere mmetụta dị mma nke ngwa na ọtụtụ ihe eji eme ihe. A na-eji ya eme ihe n’ọtụtụ ebe na ọkụ ọkụ dị iche iche. E jiri ya tụnyere ngwaahịa ụrọ, a pụrụ imeziwanye ndụ ọrụ nke kiln.

(2) Nnukwu ibu dị nro dị elu brik alumina

Tụnyere nkịtị elu alumina brik, elu-ibu rọrọ elu-alumina brik dị iche iche na matriks akụkụ na ihe nkedo akụkụ: na matriks akụkụ na-agbakwunyere na atọ nkume itinye uche, na chemical mejupụtara mgbe égbè dị nso na theoretical mejupụtara nke. mullite, nke a na-ewebata n’ụzọ ezi uche dị na ya Jiri ihe ndị dị elu aluminom, dị ka corundum ntụ ntụ, elu-aluminom corundum ntụ ntụ, wdg; họrọ ụrọ okirikiri dị elu dị ka onye na-ejikọta ọnụ, ma jiri ụrọ dị iche iche na-emekọ ihe ọnụ ma ọ bụ ihe na-ejikọta mulite dabere n’ụdị dị iche iche. Site na usoro a dị n’elu, ibu dị nro nke brik alumina dị elu nwere ike ịbawanye ihe dịka 50 ruo 70 Celsius.

(3) brik alumina dị ala na-akpụ akpụ

Melite nguzogide na-akpụ akpụ nke brik alumina dị elu site n’inwe ihe a na-akpọ mmeghachi omume na-enweghị isi. Ya bụ, dị ka ojiji okpomọkụ nke kiln, tinye atọ-nkume mineral, arụ ọrụ alumina, wdg na matrix na-eme ka mejupụtara nke matriks nso ma ọ bụ kpamkpam mullite, n’ihi na muliteization nke matriks ga-maa-amụba mullite. ọdịnaya nke ihe , Belata ihe iko iko, na ihe ndị magburu onwe n’ibu na thermal Njirimara nke mullite na-eme ka mma nke elu okpomọkụ arụmọrụ nke ihe onwunwe. Iji mee ka matriks ahụ gbasaa kpamkpam, ịchịkwa Al2O3/SiO2 bụ isi ihe. A na-eji brik alumina dị elu na-akpụ akpụ eme ihe n’ọtụtụ ebe n’ọkụ ọkụ na-ekpo ọkụ, ọkụ gbawara na ọkụ ọkụ ndị ọzọ.

(4) Phosphate jikọtara brik alumina dị elu

A na-eme brik alumina dị elu nke phosphate nke kọmpat super-ọkwa ma ọ bụ ọkwa mbụ dị elu-alumina bauxite clinker dị ka isi akụrụngwa, ngwọta phosphate ma ọ bụ aluminom phosphate ngwọta dị ka ihe nkedo, mgbe ọkara ọkpọkọ ịkpụzi, ọgwụgwọ okpomọkụ na 400 ~ 600℃ emepụtara chemically bonded refractory ngwaahịa. Ọ bụ brik anaghị agba ọkụ. Iji zere nnukwu mbelata nke ngwaahịa mgbe a na-eji ya eme ihe, ọ dị mkpa ka ewebata ihe ọkụkụ na-ekpo ọkụ, dị ka kyanite, silica, wdg, n’ime ihe ndị ahụ. Tụnyere seramiiki bonded chụọ n’ọrụ elu alumina brik, ya mgbochi-ipụpụ arụmọrụ ka mma, ma ibu ya nro okpomọkụ dị ala, na corrosion eguzogide adịghị mma. Ya mere, a ga-agbakwunye obere corundum fused, mullite, wdg iji mee ka matriks sie ike. A na-eji brik alumina dị elu nke nwere phosphate eme ihe na ciment rotary kilns, elu ụlọ ọkụ eletrik na akụkụ kiln ndị ọzọ.

(5) Micro-mgbasa elu alumina brik

A na-eme brik ahụ nke nnukwu alumina bauxite dị ka isi ihe eji eme ihe, tinye ya na nkume nkume atọ, ma mee ya dịka usoro mmepụta nke brik alumina dị elu. Iji mee ka brik dị elu nke ọma gbasaa brik alumina n’oge a na-eji ya, isi ihe bụ ịhọrọ ihe ntinye nkume atọ na nha nha ya, ma na-achịkwa ọkụ ọkụ, nke mere na akụkụ nke mineral nkume atọ ahọpụtara bụ mullite na ụfọdụ n’ime atọ. – nkume mineral na-anọgide. A na-emeziwanye mineral nke nkume atọ fọdụrụnụ (isi ma ọ bụ nke abụọ mulliteized) n’oge a na-eji ya eme ihe, tinyere mgbasawanye olu. Ihe ịnweta nkume atọ ahọpụtara bụ ọkachamma ihe mejupụtara. N’ihi na okpomọkụ nke ire ere nke mineral nkume atọ dị iche, mgbasawanye nke mullite petrochemical kpatara dịkwa iche. N’iji njirimara a mee ihe, brik alumina dị elu nwere mmetụta mgbasawanye kwekọrọ n’ihi okpomọkụ dị iche iche na-arụ ọrụ. Nchikota nke nkwonkwo brik na-eme ka ọnụ ọgụgụ zuru ezu nke mkpuchi ahụ dịkwuo mma, si otú ahụ na-eme ka nkwụsị nke brik na-abanye n’ime slag.