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XiL-III jarayonida g’ovak temir olishning material balansini hisoblash
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G\'OVAK TEMIR OLISH USULLARI
- Bu sahifa navigatsiya:
- Birikma va metallarning massalari
- Shlakdagi temirning miqdori
- 2) Oltingugurt;
- Shlakning miqdori va tarkibi
XiL-III jarayonida g’ovak temir olishning material balansini hisoblash.2.2- Jadval
|
|
C |
Si |
Mn |
Cr |
Ni |
Mo |
Cu |
G’ovak temir |
0,17-0.24 |
0.17-0.37 |
0,7-1 |
0,3 |
0,3 |
0 |
0,3 |
Temir tarkibli ruda |
4,4 |
0,75 |
0,45 |
0,12 |
0 |
0 |
0 |
Lom |
0,2 |
0,27 |
0,65 |
0,035 |
0,3 |
0 |
0,3 |
Shixtanin g o’rtacha tarkibi |
3,056
|
0,5964
|
0,514
|
0,0928
|
0,096
|
0
|
0,096
|
Temir tarkibli rudanin g dastlabki tarkibi Oksidga o’tishi |
0,264 |
0 |
0,09051 |
0,0071397 |
0 |
0 |
0 |
Oksidga o’tishi |
2,792
|
0,5964
|
0,42349
|
0,0856603
|
0
|
0
|
0
|
Temir tarkibli rudanin g yangi tarkibi |
0,270771
|
0,3255952
|
0,91785
|
0,025
|
0,3
|
0,008
|
0,3
|
Marganes
[Mn] + (FeO) = MnO + Fe
LgKMn=lg (aMnO/aFeO)*1/[Mn]=6440 / T-2.95=6440/1923-2.95=0.3989 КMn=2,5057
Gshix[Mn]shix/100=Gm[Mn]m100+Gshl*55/71*(MnO)
Almashuvchi ( MnO)
Gshix[Mn]shix100=G
m[Mn]m/100+G shl*55/71*КMn[Mn]m/100*72/56*
(Fe)u*FeO*MnO, Bu yerda:
Gshix,Gm,Gshl- Ikkivannalipechdanchiqadigansuyuqmetallva metalloshixtaning miqdori.
[Mn]shix,[Mn]m - Ikki vannali pechdan chiqadiganmarganesning miqdori (Fe)u -Shlak tarkibiga o’tgan temirning umumiy miqdori
FeO, MnO- shlakka o’tgan faol moddalarning tarkibi
Birikma va metallarning massalari
2.4-jadval
Mn |
Fe |
MnО |
FeО |
55 |
56 |
71 |
72 |
Shlakdagi temirning miqdori
1) (Fе)u=56/72(4В+0.3/[C]+t210-6+1.25)=56/72(43+0.3/0,32+
+1650210-6+1.25)=13,07%
Si=0.15 Lg(FeOMnO)=2180/Т*Si=21801913*0.15=0.171=>FeO/MnO=1.484 0.388=7,796[Mn]m=>[Mn]m=0,0898
2) Oltingugurt;
Gshix [S]shix/100+Gm.shl*(S)m.shl/100=Gm[S]m100+Gshl*(S)shl/100 Ls=4
(S)m.shl=0.4%
Gmiks shl=1133.33/277.78/10=0.408 kg\100kg shixta [S]m=([S]shix+Gикс.shl*(S)m.shl/100)(Gm/100+Gshl/100*Ls=
=(0.028+0.408*0.4100)(90100+10100*4)=0.0256%
Shlakka o’tgan moddalarning umumiy miqdori:
Gshl=Gshlok.pirit+Gshlок.Fe+Gshlohak+GshlfutGshlmiks+Gshlyuk,
Fe oksidining miqdori, qo’shilgan ohak, aralashgan shlak, zarali metallom.
Oksidlarning miqdori:
Gok.pirit=2.14[Si]+1.29[Mn]+2.29[Р]=2.14*0.596+1.29*0.424+2.29*0.086=
2 kg/100kg/ shixta
2.5-jadval
Birikma |
CaO |
SiO2 |
Al2O3 |
MgO |
S |
CO2 |
H2O |
Ohak |
84,0 |
3,0 |
2,8 |
7,0 |
0,0 |
3,1 |
0,0 |
Aralashgan shlak |
23,0
|
48,0
|
6,0
|
5,0
|
0,4
|
0,0
|
0,0
|
Futerovka |
2,0 |
1,6 |
0,3 |
95,0 |
0,0 |
0,0 |
0,0 |
Metallom |
0,0 |
65,0 |
35,0 |
0,0 |
0,0 |
0,0 |
0,0 |
В=СаО%/SiО2%=0,7-0,4=0,3kg
GСаО=Gohak*(%СаО)ohak/100+Gm.shl*(%СаО)m.shl/100+Gfut*(%СаО)fut/100
GSiО2=Gshix*2.14[Si]/100+Gohak*(%SiО2)ohak/100+Gm.shl*(%SiО2)m.shl/100+Gyuk.temir
*(%SiО2)temir/100+Gfut*(%SiО2)fut/100 Gfut=0.18 kg100kg metalloshixta.
Gyuk.temir=0.32 kg100kg metalloshixta Gohak=В*{Gш*2.14*[Si]ш/100+Gm.shl*(%SiО2)m.shl/100+Gyuk.temir
(%SiО2)temir/100-Gm.shl*(%СаО)m.shl/100+Gfut*(%СаО)fut/100}
/{(%СаО)ohak100-B(%SiO2)ohak/100}=
=3.0*{100*2.14*0.566/100+0.385*47/100+0.23*65/100}/
{85/100-3.0*2/100}=6.7145 kg GCaO=6.1520.84+0.4080.32+0.180.02=5.644 kg/100 kg shixta
GSiO2=2.140.543+6.1520.03+0.2500.65+0.408 * 0.48+0.18 * 0.016=1.686 kg shixta
%(Fe)u=13,07%
80% Fe FeO gacha oksidlanadi. 20% Fe esa 𝐹𝑒2𝑂3 gacha oksidlanadi. (FeО)u=(Fe)u *72/56*0,8=13,07*72/56*0,8=13,385% (Fe2O3.)u=(Fe)u *160/112*0,2=13,370*160/112*0,2=3,738%
Shlakning miqdori va tarkibi
2.6-jadval
Massa |
|
Komponent massasi | ||||||||
СаО |
SiО2 |
MnО |
MgО |
Р2О5 |
Аl2О 3 |
Fеu |
FеО |
Fе2О 3 | ||
Oksidlar |
2,020 |
0,000 |
1,276 |
0,547 |
0,000 |
0,197 |
0,000 |
0,000 |
0,000 |
0,000 |
Ohak aralashmasi |
6,714 |
5,640 |
0,201 |
0,000 |
0,470 |
0,000 |
0,188 |
0,000 |
0,000 |
0,000 |
Issiqlik sarfi |
0,180 |
0,004 |
0,003 |
0,000 |
0,171 |
0,000 |
0,001 |
0,000 |
0,000 |
0,000 |
Aralashgan shlak |
0,408
|
0,094
|
0,196
|
0,000
|
0,020
|
0,000
|
0,024
|
0,000
|
0,000
|
0,000
|
Lom |
0,320
|
0,000
|
0,208
|
0,000
|
0,000
|
0,000
|
0,112
|
0,000
|
0,000
|
0,000
|
FeOsiz shlakning miqdori |
9,643
|
5,738
|
1,884
|
0,547
|
0,661
|
0,197
|
0,325
|
0,000
|
0,000
|
0,000
|
Shlakning umumiy massasi |
11,635
|
5,738
|
1,884
|
0,547
|
0,661
|
0,197
|
0,325
|
1,521
|
1,557
|
0,435
|
Temir takibli ruda tarkibi |
100
|
51,83 4 |
16,19 7 |
4,704
|
5,685
|
1,689
|
2,794
|
13,07 1 |
13,38 5 |
3,738
|
Temir takribli rudaning chiqishi
Fe=((%Fе)/100)*G=(13,07/100)*11,635=1.521 kg/100 kg shixta G Gpotkul=(2*Gshix)/100=1.8 kg/100 kg shixta
Gpotкор=(6*Gshl)/10011,635=0,698 kg/100 kg shixta Gyuk=(1*G)/100=0,25kg/100 kg
Gch=100-3,898-1,521-1,8-0,698=92,083kg/100 kg shixta
Temir tarkibli rudaning chiqishi: у=Gch/Gshix=92.083/90=1,023
G’ovak temirning aniqlangan tarkibi:
Marganes:
lg(FeO/MnO)=2180/Т*Si=(2180/1923)*0.15=0.183 => FeО/MnО=1,441 100*0,514/100=1,020*[Mn]m+11,635*55/71*2,609[Mn]m/100*72/56*
*13,071,441
0,514=1,02314[Mn]m +5,469768[Mn]m => [Mn]m=0,079%
Fosfor
c) lgLР=22350/1923-16+2.5lg(13,07)+0.08*51,834=2.389 => LР=363,063 [Р]m=0.159/(92,083/100+11,635/100*363,063)=0,0022%
v) Oltingugurt [S]m=0,0316/(0,9+11,635/100*4)=0,023%
Kislorod sarfi GО2gaz+GО2chang=GО2pirit+GО2FеGО2kul
GО2pirit=Gshix/100 (1)*16/12*С+*32/12*С+32/28*Si+16/55*Mn+
+80/62*Р],
0.12-uglerodning ulushi , СО2 gacha oksidlanadi
GО2pirit=100/100[(1-0.12)*16/12*2,792+0.12*32/12*2,792+32/28*0.596+
+16/55*0.424+80/62*0,086]=5,085 kg/100 kg shixta GО2Fе=Gshl*(Fе)u/100*0.238=11,635*13,071/100*0.238=0,362 kg/100 kg shixta GО2kul=Gkul*64/168=1.8*64/168=0.686 kg/100 kg shixta GО2chang=Gchang*0.27=0,32*0.27=0.0864 kg/100 kg shixta GО2gaz=5,085+0.362+0.686-0.0864=6.046 kg/100 kg shixta
GО2texnik=GО2gaz/{%О2}*1/k=6.046/(0.686/100)/0.95=6,397 kg/100 kg shixta GО2texnik=GО2texnik/32*22.4=6,397/32*22.4=4,48 m3
Chiqindi gazlarning miqdori:
Ggazchiq=GСО+СО2oksid+Gohak+GN2havo+G
GСО+СО2oksid=Gshix/100[28/12*С(1-)+44/12*С*]=100/100[28/12*3.008*
*(1-0.12)+44/12*3.008*0.12]=6,961 kg/100 kg щихты
Gohak=(G*{%СО }ohak+{%Н О}ohak)/100=6,152*(3,1+0)/100=0.208 kg/100kg
Shixta
G N2= GО2texnik *(%N2)/100=6,715*0.5/100=0,032 kg/100 kg shixta
GО2=GО2texnik*(1-k)*(%О2)havo/100=6,715(1-0.95)*0.995=0,318 kg/100 kg shixta Ggazchiq=6,961+0.208+0.032+0.318=7,5198 kg/100 kg shixta
Chiqindi gazlarning hajmi: Vi=Gi*22.4/Mi
VСОoksid=5.732*22.4/28=4.586 m3 (84.00%)
VСО2oksid=1.228*22.4/44=0.625 m3 (11.45%) VN2kislota=0.032*22.4/28=0.026 m3(0.47%) VО2=0.318*22.4/32=0.223 m3 (4.08%)
Vi=5.46m3 (100%)
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