Innovative refractory cov ntaub ntawv rau kev ua tau zoo ferrosilicon rauv

Ferrosilicon furnaces mas tsim ferrosilicon, ferromanganese, ferrochromium, ferrotungsten, thiab silicon-manganese alloys. Txoj kev tsim khoom yog kev pub noj tsis tu ncua thiab sib cuam tshuam tapping ntawm hlau slag. Nws yog lub tshuab hluav taws xob muaj hluav taws xob uas ua haujlwm tsis tu ncua.

Ferrosilicon rauv yog hom hluav taws xob siv hluav taws xob ntau, uas tuaj yeem txo lub zog noj thiab ua kom cov zis ntau ntxiv, kom lub neej ntawm lub cub tawg tuaj yeem siv tau ntev. Tsuas yog nyob rau hauv txoj kev no tuaj yeem txo tus nqi ntawm cov khoom lag luam thiab cov khoom siv khib nyiab pov tseg. Cov hauv qab no qhia txog qhov sib txawv ntawm qhov kub thiab txias ntawm ferrosilicon rauv. Kev siv cov ntaub ntawv refractory ntawm cov ntaub ntawv sib txawv tsuas yog siv rau kev siv xwb.

Cov khoom siv tshiab preheating cheeb tsam: Cov txheej saum toj kawg nkaus yog li 500 hli, nrog rau qhov kub ntawm 500 ℃ - 1000 ℃, cua kub kub, electrode conduction tshav kub, combustion ntawm tus nqi saum npoo, thiab cov nqi xa tawm tam sim no kub. Qhov ntsuas kub ntawm qhov no yog qhov sib txawv, thiab nws yog lined nrog av nplaum cib.

Preheating cheeb tsam: Tom qab cov dej evaporates, tus nqi yuav maj mam txav mus rau downwards thiab ua ntej hloov nyob rau hauv lub silica crystal daim ntawv nyob rau hauv lub preheating cheeb tsam, nthuav nyob rau hauv ntim, thiab ces tawg los yog tawg. Qhov kub nyob rau hauv seem no yog nyob ib ncig ntawm 1300 ° C. Ua nrog siab alumina cib.

Sintering cheeb tsam: Nws yog lub plhaub crucible. Qhov kub ntawm 1500 ℃ thiab 1700 ℃. Cov kua silicon thiab hlau yog tsim thiab xau mus rau hauv lub pas dej molten. Lub sintering thiab roj permeability ntawm cov khoom siv rauv yog tsis zoo. Cov blocks yuav tsum tau tawg kom rov ua kom cov pa cua thiab ua kom muaj zog. Qhov kub hauv cheeb tsam no siab heev. Corrosive heev. Nws yog tsim los ntawm semi-graphitic carbon - carbonized silicon cib.

Kev txo qis: Ib qho loj ntawm cov khoom siv tshuaj lom neeg cov tshuaj tiv thaiv ib cheeb tsam. Qhov kub ntawm thaj chaw crucible yog nyob nruab nrab ntawm 1750 ° C thiab 2000 ° C. Qhov qis dua yog txuas nrog arc kab noj hniav thiab feem ntau yog siv rau kev decomposition ntawm SIC, tiam ntawm ferrosilicon, cov tshuaj tiv thaiv ntawm cov kua Si2O nrog C thiab Si, thiab lwm yam. Cov chaw kub kub yuav tsum tau tsim nrog semi-graphite roasted carbon bricks. .

Arc cheeb tsam: Hauv cheeb tsam kab noj hniav hauv qab ntawm cov electrode, qhov kub siab tshaj 2000 ° C. Qhov kub nyob hauv cheeb tsam no yog qhov kub siab tshaj plaws nyob rau hauv tag nrho lub cub tawg thiab qhov chaw ntawm qhov kub thiab txias tshaj plaws nyob rau hauv tag nrho lub cub tawg. Yog li ntawd, thaum lub tshuab hluav taws xob tau muab tso rau hauv qhov ntiav ntiav, qhov kub siab ntawm qhov chaw txav mus rau sab saud, thiab lub qhov cub hauv qab qhov kub thiab txias qis molten slag tsawg dua, ua rau lub qhov cub hluav taws xob hauv qab, ua rau lub qhov cub txav mus rau sab saud. Ib qho hluav taws xob hluav taws xob hauv qab muaj qee yam txiaj ntsig rau kev tiv thaiv hluav taws xob. Feem ntau hais lus, qhov tob ntawm electrode insertion muaj ntau ua nrog txoj kab uas hla ntawm electrode. Qhov dav dav qhov tob yuav tsum tau khaws cia ntawm 400mm-500mm los ntawm hauv qab ntawm qhov cub. Qhov no muaj qhov kub thiab txias dua thiab ua nrog semi-graphite ci charcoal cib.

Lub txheej ruaj khov yog ua los ntawm phosphate pob zeb lossis av nplaum cib. Lub qhov rooj rauv tuaj yeem nrum nrog corundum castables lossis pre-ntev nrog silicon carbide cib.

Nyob rau hauv luv luv, raws li qhov loj, qhov kub thiab txias, thiab corrosion degree ntawm ferrosilicon rauv, tsim nyog, ib puag ncig tus phooj ywg, thiab cov ntaub ntawv sib txawv ntawm refractory bricks thiab castables yuav tsum tau xaiv rau hauv ob sab phlu.