Magnesia Dolomite Cib

yam ntxwv:

Muaj MgO80% ~ 87%, CaO6% ~ 9%, CaO / SiO2 ratio yog nruab nrab ntawm 2.2 ~ 3.0. Nws cov yam ntxwv pom tseeb yog tias periclase yog nyob rau hauv kev sib cuag ncaj qha nrog dicalcium silicate thiab tricalcium silicate, thiab eutectic (4CaO·Al2O3·Fe2O3 yog sau rau hauv lub crystal gap ntawm dicalcium silicate thiab tricalcium silicate nyob rau hauv ib tug nyias vein duab. thiab kev tiv thaiv rau alkali slag yog qhov zoo ntawm qhov kub ntawm 1550 ~ 1600 degree.

Muaj feem xyuam:

Nws yog siv nyob rau hauv lub qhov muag cua ntawm steel-ua sab- tshuab hloov pauv, qhib-hearth rauv saum toj thiab oxygen- tshuab hloov pauv, thiab lwm yam.

Magnesia-calcium bricksyog alkaline composite refractory khoom nrog MgO thiab Ca0 ua cov tshuaj tseem ceeb, xws li dolomite cib thiab magnesia dolomite cib. Magnesia calcium cib muaj kev ua tau zoo heev, tshwj xeeb tshaj yog muaj peev xwm ua kom huv si molten steel, uas tsis muaj nyob rau hauv lwm yam khoom siv refractory.

Magnesia calcium cib siv

Magnesia-calcium bricks tau siv dav hauv cov khoom siv kho kom zoo xws li AOD rauv, VOD rauv thiab LF rauv, thiab tau ua tiav cov txiaj ntsig zoo. Nrog rau kev nthuav dav ntawm cov hlau tsis huv thiab ntau lub peev xwm ua kom huv huv, qhov kev thov rau ntau yam magnesia-calcium bricks tseem yuav nce ntxiv.

Kub kub kuj ntawm magnesia calcium cib

Lub siab kub tsis kam ntawm magnesia-calcium bricks txhais tau hais tias magnesia-calcium bricks tsis yaj, soften thiab deform nyob rau hauv kub kub ua hauj lwm tej yam kev mob, thiab tuav zoo kub stability thiab mechanical zog.

Magnesia-calcium bricks yog siv rau hauv cov khoom siv refining xws li AOD rauv, VOD furnaces thiab LF furnaces, qhov chaw ua hauj lwm kub thiab kub hloov ntau zaus. Piv txwv li, qhov kub nyob rau hauv lub sij hawm oxidation ntawm lub qhov cub AOD yog siab tshaj 1700 degree, qee zaum mus txog 1750 degree, thiab qhov kub ntawm lub qhov muag qhov muag yog siab dua. Xws li qhov kub thiab txias ua haujlwm ib puag ncig yuav tsum tau magnesia-calcium bricks kom muaj qhov kub thiab txias ua haujlwm kom tau raws li qhov xav tau ntau lawm.

Cov zaub mov tseem ceeb ntawm magnesia-calcium cib, MgO thiab Cao, yog siab- cov zaub mov kub. Lub melting point ntawm MgO yog 2800 degree, thiab lub melting point ntawm CaO yog 2570 degree. Mg0 thiab CaO tsis tsim binary composite minerals ntawm qhov kub thiab txias. Qhov qis tshaj smelting point ntawm ob cov ntaub ntawv no yog 2370 degree. MgO thiab CaO kuj muaj qhov kub thiab txias stability. Yog li ntawd, MgO thiab CaO endow magnesia-calcium bricks nrog kub kub kuj zoo heev.