Cov txheej txheem tseem ceeb rau kev npaj ferrosilicon hmoov muaj xws li remelting, pulverization, thiab atomization.
Cov txheej txheem remelting siv ib txwm ua haujlwm ferrosilicon submerged arc rauv thiab hauv qab -blown oxygen- tshuab raj. Thaum lub sij hawm tapping, oxygen thiab compressed cua yog hauv qab- tshuab mus rau hauv lub ladle ntawm qhov ratio ntawm 2.0-12 m³ / h : 1.0-6 m³ / h. Ib txhij, tshwj xeeb flux, npaj los ntawm quartz xuab zeb, quicklime, oxide nplai, thiab fluorite nyob rau hauv ib tug hnyav piv ntawm 40–44:28–35:1–5:13–20, yog ntxiv ntawm tus nqi ntawm 3 wt% – 5 wt% ntawm cov hlau molten. Tom qab ntawd, ferrosilicon hmoov yog ntxiv rau cov yaj yaj ntawm tus nqi ntawm 5 wt% - 10 wt% ntawm cov hlau molten. Cov txheej txheem no txhim kho cov fluidity ntawm cov hlau molten, tiv thaiv nto crusting, thiab muaj qhov zoo xws li kev txuag hluav taws xob, kev tiv thaiv kev ua qias tuaj, nce yield, thiab cov txiaj ntsig kev lag luam.
Txoj kev pulverization yuav tsum tswj cov khoom kub los tiv thaiv cov ferrosilicon alloy los ntawm oxidizing thaum pulverized rau ib qho me me. Cov txheej txheem pulverization ua tiav siv huab cua- cua txias thiab dej- cua txias tshuab los tswj cov khoom kub ntawm chav tsev kub lossis kub qis, daws qhov teeb meem ntawm oxidation yooj yim thiab ua tiav kev tsim khoom tas li yam tsis muaj hluav taws kub, oxidation, los yog muaj kuab paug. Vim lub siab tawv thiab lub ntiajteb txawj nqus ntawm ferrosilicon, nws ua rau hnyav hnyav ntawm cov khoom siv; Yog li ntawd, cov khoom siv tseem ceeb thiab cov khoom pabcuam yuav tsum tau ua los ntawm cov hlau tsis muaj steel, thiab cov kav dej yuav tsum tau ua los ntawm siab -polymer hnav- cov ntaub ntawv resistant lossis lined nrog hnav- cov ntaub ntawv tiv taus.
Atomization yog ib txoj hauv kev tsim cov ferrosilicon hmoov. Nws siv lub siab - cov pa roj kwj rau atomize molten ferrosilicon alloy rau hauv hmoov. Txoj kev no yog tsim los tsim ntau qib ntawm ferrosilicon hmoov, xws li 45% thiab 75%, thiab tau siv rau kev lag luam. Optimizing txheej txheem tsis tuaj yeem txhim kho cov hmoov zoo thiab txo cov nqi.
