Smelting ntawm ferrosilicon

Tsawg-silicon ferrosilicon (10 ~ 15% silicon) tuaj yeem smelted nyob rau hauv blast furnaces nrog hlau ore thiab silica. High coke ratio thiab cua kub yuav tsum tau. Hauv kev ua haujlwm, qhov kub siab tshaj plaws ntawm lub cub tawg yog siab, cov pa roj muaj plua plav ntau, thiab kev ua haujlwm loj heev yog qhov nyuaj. High-silicon ferrosilicon yog smelted nyob rau hauv ib tug carbon-lined txo qhov cub, siv silica, steel chips (los yog hlau nplai), thiab coke ua raw khoom. Hluav taws xob rauv hlau silicon yog slag dawb smelting, raw cov ntaub ntawv yuav tsum huv si, tsis tov nrog av nkos xuab zeb thiab lwm yam impurities, tus nqi nrog ntoo chips thiab thee, yuav txhim khu kev ua tau zoo ntawm tus nqi. Nyob rau hauv cov txheej txheem smelting, cov khoom nto yog ib qho yooj yim rau crust thiab "stab fire" (cov khoom nto ntog hluav taws), thiab nws yuav tsum yog feem ntau "ramming furnace". Lub tshuab hluav taws xob tsim cov hlau silicon txhua 2 mus rau 4 teev thiab nrum ingots nrog lub thickness tsawg dua 100 hli hauv cov pwm pwm. Hlau silicon feem ntau refined los ntawm qhib hom hluav taws xob rauv. Nyob rau hauv xyoo tas los no, txhawm rau tiv thaiv ib puag ncig muaj kuab paug, ntau "cov pa luam yeeb qis" lossis "semi-kaw" hom hluav taws xob rauv yog siv los pab txhawb kev rov qab los ntawm lub zog cua sov thiab tshem tawm cov pa taws thiab plua plav; Kev tsim khoom ntawm high-silicon ferrosilicon (muaj ntau dua 75% silicon), feem ntau yog siv lub tshuab hluav taws xob tig kom txo tau qhov cub tawg. Loj ferrosilicon rauv muaj peev xwm ntawm 10000 ~ 96000 kVA, ferrosilicon ntau lawm lub zog noj yog hais txog: 45% ferrosilicon, 5000 kW · h / tuj; 75% ferrosilicon, 9000 kW · h/ton; 90% ferrosilicon, 14000 kW · h/ton. Txhawm rau kom ua tau raws li qhov yuav tsum tau ua kom cov ntsiab lus txhuas ntawm ferrosilicon hauv cov hlau hluav taws xob yuav tsum tsis txhob siab dhau, kev ua kom zoo xws li tshuab pa oxygen lossis tshuab chlorine tau tsim nyob rau xyoo tas los no.