XiL-III jarayonida g’ovak temir olishning material balansini hisoblash

Mundarija Kirish Nazariy qism


XiL-III jarayonida g’ovak temir olishning material balansini hisoblash


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G\'OVAK TEMIR OLISH USULLARI

XiL-III jarayonida g’ovak temir olishning material balansini hisoblash.

2.2- Jadval



C

Si

Mn

0,17-0.24

0.17-0.37

0,7-1



Shixtaning o’rtacha tarkibi quyidagicha hisoblanadi:


Uglerodning tarkibi quyidagicha bo'ladi:


O’rta uglerodli temir qotishmalarida-0,003%
Kam uglerodli temir qotishmalarida - 0,001 %
O’rta markali temir qotishmasida uglerodning miqdori quyidagicha – 0,36%
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
2.3-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:

  1. 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%

  1. 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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