Cov txheej txheem kom raug refining micro carbon ferrochrome hmoov

Nruab nrab, qis thiab micro carbon ferrochrome hmoov feem ntau yog tsim los ntawm ferrosilicon, chromite thiab txiv qaub hmoov. Nws yog desilicated nrog zoo hmoov ntawm cua sov rauv ntawm 1500~6000kVA thiab ua hauj lwm nrog ya tshauv ntawm siab pH nqi (CaO/SiO2 piv yog 1.6 ~ 1.8). Tsawg carbon ferrochrome thiab qis carbon ferrochrome kuj tseem muaj kev sib xyaw ua ke ntawm thermal mixing ntau lawm. Ob lub cub tawg yog siv rau hauv kev tsim khoom, ib qho rau forging Ni-Si alloy thiab lwm yam rau melting slag uas muaj chromium ore thiab txiv qaub hmoov. Rau refractory chromite, cov tshuaj tiv thaiv tseem ceeb tau muab faib ua ob lub thoob hauv ob theem: (1) Tom qab cov slag ntawm lub qhov cub slag tau ntim rau hauv lub thoob, cov ferrosilicon alloy uas nyuam qhuav pib desilication yog ntxiv rau lwm lub thoob. Vim lub peev xwm loj tshaj ntawm slag-txo tus neeg sawv cev thiab txaus desilication, micro-carbon ferrochrome nrog silicon cov ntsiab lus tsawg dua 0.8 feem pua ​​thiab cov ntsiab lus carbon tsawg li 0.02 feem pua ​​tuaj yeem tau. (2) Lub reacted slag (muaj li ntawm 15 feem pua ​​​​Cr2O3) nyob rau hauv lub thawv yog tsiv mus rau lub thib ob thawv, thiab ferrosilicon alloy (muaj 45 feem pua ​​silicon) cam khwb cia nyob rau hauv lub chromium silicon cua sov rauv yog ntxiv rau lub slag. Tom qab cov tshuaj tiv thaiv dhau lawm, cov ferrosilicon alloy (muaj li 25 feem pua ​​​​silicon) uas nyuam qhuav pib desilicated tau txais, thiab cov slag uas muaj tsawg dua 2 ~ 3 feem pua ​​​​Cr2O3 tuaj yeem muab pov tseg.