Ndeupi mutsauko pakati yakakwirira alumina zvidhinha nezvidhinha zvevhu?

Vanhu vari muindastiri refractory vanoziva kuti zvidhinha zvevhu uye yakakwirira alumina zvidhinha kubva pakuonekwa, asi kana iwe ukamubvunza kuti ataure musiyano pakati pezvidhinha zvevhu uye yakakwirira alumina zvidhinha, vanhu vazhinji havazivi. Nhasi Zhengzhou Sheng Energy refractory vagadziri vanotsanangura:

Zvidhinha zvakakwirira zvealumina zvinowanzogadzirwa nepamusoro alumina bauxite clinker pamwe nevhu diki, mushure mekugadzirwa pasi, zvinodururwa uye kuumbwa muchimiro chedhaka nenzira yekugadzira gasi kana nzira yefuro, uye ndokupiswa pa1300-1500 °. C. Dzimwe nguva maindasitiri alumina anogona kushandiswa kutsiva chikamu chebauxite clinker. Inoshandiswa kune lining uye kupisa kwekudzivirira kwemukati kwemasonry kilns, pamwe chete nezvikamu zvisina kusvibiswa uye zvakasvibiswa nezvinhu zvakasimba zvekupisa zvakanyungudutswa. Kana yakanangana nemurazvo, tembiricha yekubata kumeso haifanire kunge yakakwira kupfuura 1350 ℃.

High alumina zvidhinha vane yakakwirira refractoriness uye mutoro kupfava tembiricha kupfuura ivhu zvidhinha, uye kuva nani slag ngura kuramba (kunyanya nokuda acid slag), uye zvinhu izvi kuwedzera pamwe kuwedzera Al2O3 kugutsikana, asi thermal kugadzikana hakuna kunaka sezvidhinha zvevhu. High alumina zvidhinha zvine high density, low porosity, high mechanical simba uye kupfeka kuramba. Musoro wechoto chekamuri yekupisa yecoke uye zvidhinha zvepasi zvekamuri ye carbonization zvakavakwa nepamusoro alumina zvidhinha, uye mhedzisiro yacho iri nani; asi haina kukodzera kumadziro ekamuri ye carbonization, nokuti yakakwirira alumina zvidhinha zvinowanzoita kupeta makona pakupisa kwakanyanya. .

Zvidhinha zvevhu, thermal insulation refractories zvinoreva refractories ine yakakwira porosity, yakaderera bulk density uye yakaderera thermal conductivity. Thermal insulation refractories inonzi zvakare lightweight refractories, iyo inosanganisira thermal insulation refractory zvigadzirwa, refractory fibers uye refractory fiber zvigadzirwa. Thermal insulation refractories inoratidzirwa nepamusoro porosity, kazhinji 40% -85%; yakaderera yakawanda density pazasi 1.5g/cm3; low thermal conductivity, kazhinji pasi pe1.0W (mK).

Inoshanda sechinhu chinopisa chekudzivirira chemidziyo yemaindasitiri, inogona kuderedza kurasikirwa kwekupisa kwechoto, kuchengetedza simba, uye kuderedza kunaka kwemidziyo inopisa. Thermal insulation refractories ine urombo hwemagetsi simba, abrasion resistance uye slag corrosion resistance, uye haina kukodzera kutakurwa-kuremerwa chimiro chemoto uye kutarisana zvakananga ne slag, charge, simbi yakanyungudutswa uye zvimwe zvikamu.

Zvidhinha zvevhu hazvina kusimba acidic refractory zvigadzirwa, izvo zvinogona kuramba kukukurwa kwe acidic slag uye acidic gasi, uye ine kushomeka kushoma kupikisa kune alkaline zvinhu. Zvidhinha zvevhu zvine zvinhu zvakanaka zvekupisa uye zvinodzivirira kutonhora nekukurumidza uye nekukurumidza kupisa.

Iyo refractoriness yezvidhinha zvevhu inofananidzwa neiyo silica zvidhinha, kusvika 1690 ~ 1730 ℃, asi kupfava kwayo tembiricha iri pasi pemutoro inodarika 200 ℃ yakaderera pane iyo yesilika zvidhinha. Nekuti chidhinha chevhu chine mullite makristasi ane yakakwirira refractoriness, ine zvakare ingangoita hafu yeyakaderera melting point amorphous girazi chikamu.

Izvo zviri pamusoro apa mutsauko pakati pezvidhinha zvakakwirira zvealuminium uye zvidhinha zvevhu. Ndinovimba zvichabatsira kwauri. Ndapota inzwa wakasununguka kutibata nesu kana uchida.