Raws li cov ntaub ntawv tau muab, tus nqi ntawm kev tsim ferrosilicon 75 (FeSi75) muaj peb pawg tseem ceeb: cov khoom siv raw, hluav taws xob thiab lwm yam nqi khiav lag luam.
1. Cov khoom siv tseem ceeb
Silica (quartz, SiO2):Nws yog lub hauv paus ntawm silicon rau ferrosilicon 75.
Semicoke (txo tus neeg sawv cev):Ua raws li cov pa roj carbon dioxide uas txo cov silicon los ntawm silica. Cov ntaub ntawv qhia meej tias cov txheej txheem qub uas nws "txo cov ntsiab lus silicon" tsis raug - qhov tseeb, char txo silicon dioxide (SiO2 + C → Si + CO).
Hlau oxide scale:Regulates muaj pes tsawg leeg ntawm ferroalloy, feem ntau cov ntsiab lus hlau. Nws kuj pab txo cov ntsiab lus zoo ntawm silicon dioxide hauv tus nqi.
2. Hluav taws xob (cov khoom siv tseem ceeb)
Kev tsim cov ferrosilicon 75 yog ib qho kev siv zog heev.
Kev siv hluav taws xob tshwj xeeb feem ntau yog 8000-9000 kWh ib tuj ntawm cov khoom.
Cov nqi hluav taws xob feem ntau suav txog 30% txog 50% ntawm tag nrho cov nqi tsim khoom. Vim li no, tus nqi rau ferrosilicon yog nyob ntawm cov nqi hluav taws xob.
3. Lwm cov khoom raug nqi
Electrode loj rau tus kheej ci electrodes.
Cov nqi ua haujlwm thiab qhov cub ua haujlwm.
Kev tu lub qhov cub thiab siv cov khoom siv refractory.
Logistics nqi rau thauj quartz, coke thiab tiav alloy.