Cov Txheej Txheem Txheej Txheem Ntau Lawm
Cov Khoom Siv Raw
Limestone (CaCo₃): Ntau dua lossis sib npaug ntawm 97% kev coj dawb huv, qis silica cov ntsiab lus (<1.5%)
Coke/Carbon Reductant: Fixed carbon >85%, cov ntsiab lus tshauv<12%
Muab tshuaj txhuam Electrode: roj av-raws li, tiv taus<65 μΩ·m
Arc rauv ua haujlwm ua haujlwm
| Chaw ua uas tsis tau haus | Cov nqi raug | Kev tswj hwm cov ntsiab lus tseem ceeb |
|---|---|---|
| Cov tshuaj tiv thaiv kub | 2,100-2,300 degree | ± 50 Qib Pov Txwv yuav tsum tau ua |
| Kev Siv Zog | 2,800-3,200 kwh / tuj | Txuas rau Coke Reventity |
| Cua sov voltage | 150–300 V | Kho rau slag viscosity |
| CAO: C MANPOR piv | 1:2.8–3.2 | Cuam Tshuam Hloov |
Cov txheej txheem efficiency:Cov hluav taws xob niaj hnub ua tau ua tiav 85-90
Cov Qauv Cim
Phase muaj pes tsawg leeg (xrd tsom kwm)
Theem tseem ceeb: CACK (cubic Crystal system,=6.29 Å)
Cov kauj ruam uas tsis loj los:
CAO (1-8%)
CAS / CA₃P₂ (<0.5% for welding-grade)
Cov pa roj carbon dawb (2-5%)
ThermialMemical Khoom
Tshav kub ntawm tsim (ΔHₓ): -59.8 kj / mol ntawm 25 degree
Decomposition kinetics:
Cov tshuaj tiv thaiv dej zog Zog: 42.5 KJ / Mol
Qhov loj me me<1mm achieves 95% conversion in <2 mins
Muaj Daim Ntawv Thov Kev Lag Luam
Acetylene tiam ib qho kev ua tau zoo
| Teem nqi | Cov txiaj ntsig tawm (L / KG) | Tus Ntaus (L / KUB KG) | Residual Ca (Oh) ₂ |
|---|---|---|---|
| Tshuaj | 295–310 | 25–30 | 12–15% |
| MeTallurgical | 260–280 | 15–20 | 18–22% |
Steelmaking additive kev ua tau zoo
Desulfurization efficiency: 1KG CACT tshem tawm 0.8-1.2kg sulfur ib tev ntawm hlau
SLAG kev hloov kho: txo cov viscosity los ntawm 30-40% ntawm 1,600 degree
Kev Ua Haujlwm Technological
Txheej txheem kev nrhav
Ntshav arc rauv taws: txo lub zog siv los ntawm 15-20% (2,400-2,600 kWh / tuj)
Khib nyiab kub rov qab: preheats raw khoom rau 600 degree, txhim kho cov txiaj ntsig
Broproduct Kev Siv Khoom Siv
Daim Ntawv Thov Slag:
Maas Additive (Hloov 10-15% Clinker)
Cov Khoom Siv Khoom Muag Khoom (tom qab stabilization)
CO OFFGAS: Pub rau formic acid synthesis
Cim npe nrov: Kev paub txog kev tshaj lij ntawm calcium carbide, Tuam Tshoj kev paub txog calcium carbide cov chaw tsim khoom, cov chaw muag khoom, Hoobkas