Mundarija Kirish Nazariy qism

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

LgK_Mn=lg (a_MnO/a_FeO)*1/[Mn]=6440 / T-2.95=6440/1923-2.95=0.3989 К_Mn=2,5057

G_shix[Mn]_shix/100=G_m[Mn]_m100+G_shl*55/71*(MnO)
Almashuvchi ( MnO)
G_shix[Mn]_shix100=G
_m[Mn]_m/100+G _shl*55/71*К_Mn[Mn]_m/100*72/56*
(Fe)_u*_FeO*
_MnO, Bu yerda:
G_shix,G_m,G_shl- 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

LgK_Mn=lg (a_MnO/a_FeO)*1/[Mn]=6440 / T-2.95=6440/1923-2.95=0.3989 К_Mn=2,5057

G_shix[Mn]_shix/100=G_m[Mn]_m100+G_shl*55/71*(MnO)
Almashuvchi ( MnO)
G_shix[Mn]_shix100=G
_m[Mn]_m/100+G _shl*55/71*К_Mn[Mn]_m/100*72/56*
(Fe)_u*_FeO*_MnO, Bu yerda:
G_shix,G_m,G_shl- 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+
[phone]+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;

G_shix [S]_shix/100+G_m.shl*(S)_m.shl/100=G_m[S]_m100+G_shl*(S)_shl/100 L_s=4
(S)_m.shl=0.4%
G_{miks shl}=1133.33/277.78/10=0.408 kg\100kg shixta [S]_m=([S]_shix+G_икс.shl*(S)_m.shl/100)(G_m/100+G_shl/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_+Gshlfut_Gshlmiks_+Gshlyuk_,
Fe oksidining miqdori, qo’shilgan ohak, aralashgan shlak, zarali metallom.
Oksidlarning miqdori:
G^ok.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
G_СаО=G_ohak*(%СаО)_ohak/100+G_m.shl*(%СаО)_m.shl/100+G_fut*(%СаО)_fut/100
G_SiО2=G_shix*2.14[Si]/100+G_ohak*(%SiО₂)_ohak/100+G_m.shl*(%SiО₂)_m.shl/100+G_yuk.temir
*(%SiО₂)_temir/100+G_fut*(%SiО₂)_fut/100 G_fut=0.18 kg100kg metalloshixta.
G_yuk.temir=0.32 kg100kg metalloshixta G_ohak=В*{G_ш*2.14*[Si]_ш/100+G_m.shl*(%SiО₂)_m.shl/100+G_yuk.temir
(%SiО₂)temir/100-G_m.shl*(%СаО)_m.shl/100+G_fut*(%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 G_CaO=6.1520.84+0.4080.32+0.180.02=5.644 kg/100 kg shixta
G_SiO2=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 G_pot^kul=(2*G_shix)/100=1.8 kg/100 kg shixta
G_pot^кор=(6*G_shl)/10011,635=0,698 kg/100 kg shixta G^yuk=(1*G)/100=0,25kg/100 kg
G_ch=100-3,898-1,521-1,8-0,698=92,083kg/100 kg shixta
Temir tarkibli rudaning chiqishi: у=G_ch/G_shix=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%

2. 
   Fosfor
   

c) lgL_Р=22350/1923-16+2.5lg(13,07)+0.08*51,834=2.389 => L_Р=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_+GО2Fе_GО2kul
G_О2^pirit=G_shix/100 (1)*16/12*С+*32/12*С+32/28*Si+16/55*Mn+
+80/62*Р],
0.12-uglerodning ulushi , СО₂ gacha oksidlanadi
G_О2^pirit=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 G_О2^Fе=G_shl*(Fе)_u/100*0.238=11,635*13,071/100*0.238=0,362 kg/100 kg shixta G_О2^kul=G_kul*64/168=1.8*64/168=0.686 kg/100 kg shixta G_О2^chang=G_chang*0.27=0,32*0.27=0.0864 kg/100 kg shixta G_О2^gaz=5,085+0.362+0.686-0.0864=6.046 kg/100 kg shixta
G_О2^texnik=G_О2^gaz/{%О₂}*1/k=6.046/(0.686/100)/0.95=6,397 kg/100 kg shixta G_О2^texnik=G_О2^texnik/32*22.4=6,397/32*22.4=4,48 m³
Chiqindi gazlarning miqdori:
^Ggaz^chiq=GСО+СО2^{oksid+Gohak+G}N2^havo+G
G_СО+СО2^oksid=G_shix/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
G^ohak=(G*{%СО }^ohak+{%Н О}^ohak)/100=6,152*(3,1+0)/100=0.208 kg/100kg
Shixta
G _N2= G_О2^texnik *(%N2)/100=6,715*0.5/100=0,032 kg/100 kg shixta
G_О2=G_О2^texnik*(1-k)*(%О₂)^havo/100=6,715(1-0.95)*0.995=0,318 kg/100 kg shixta G_gaz^chiq=6,961+0.208+0.032+0.318=7,5198 kg/100 kg shixta
Chiqindi gazlarning hajmi: V_i=G_i*22.4/M_i
V_СО^oksid=5.732*22.4/28=4.586 m³ (84.00%)
V_СО2^oksid=1.228*22.4/44=0.625 m³ (11.45%) V_N2^kislota=0.032*22.4/28=0.026 m³(0.47%) V_О2=0.318*22.4/32=0.223 m³ (4.08%)
V_i=5.46m³ (100%)