Metallurgiya

Mis konsentratini ratsional tarkibi

Minerallar	Cu	Fe	Pb	Zn	S	SO2	CaO	Al2O3	As2O3	Bosh	Jami
CuFeS2	12,4	10,89			12.48						35,77
CuFe2S3	3.1	5,44			4.68						13,22
ZnS				4.3	2.10						6.4
PbS			0.5		0.08						0.58
FeS2		12,67			15,86						28,53
SiO2						6,5					6,5
CaO							0,3				0,3
Al2O3								2			2
As2O3									0.2		0.2
Boshqalar										6,5	6,5
Jami	15,5	29	0.5	4.3	35,02	6,5	0,3	2	0.2	6,5	100

3.2 Material balans xisobi

Shteyn
Cu ning shteynga o‘tish darajasi 98 % ni tashkil qiladi. Cu ning dastlabki massasi 15,5 kg
15,5* 0.98 = 15.19 kg
Cu shteynning 50 % ini tashkil qiladi.
15,19/0.5 = 30,38kg
V.R. Nedvedskiy ma‘lumotlariga binoan shteynning 50 % metallar, 2 % O_2.
23.7 % S ekanligini bilgan holda temirning shteyindagi ulushini topamiz.
100 – (50 + 2 + 23.7) = 24.3 %
1) 30,38kg 100%
X 50 %Cu
X = 30,38* 50 /100 = 15,19 kg Cu
2) 30,38kg 100%
X 2 %O₂
X = 30,38* 2 /100 = 0.60 kg O₂
3) 30,38kg 100%
X -- 23,7 %S
X= 30,38 *23.7 /100 = 7.20 kgS
4) 30,38kg 100%
X -- 24.3 %Fe
X= 30,38*24.3 100 = 7.38 kgFe

Shteyn tarkibida 7.38 kg Fe bo‘lsa shlak tarkibida

29– 7.38 = 21,62 kg shlakka o‘tadi.
Zn va Pb ni shteynga o‘tishi. Zn ni shteynga 3 %, Pb ni 30 % i shteynga o‘tadi. Zn 4.3*0.03 =0.129 kg Zn shteynga o‘tgan.
Pb 0.5*0.3 =0.15kg Pb shteynga o‘tgan.
Shteynni hisoblab bo‘lgach kvars miqdorini hisoblaymiz shlak tarkibida 30 % SiO₂ bo‘ladi.
X – shlak massasi kg deb qabul qilamiz. Y – flyus massasi kg deb qabul qilamiz.
X = Y +21,62(55.85+16)/55.85 + 6+1.55
FeO massasini topib olamiz. Shlakka o‘tgan Fe massasidan foydalanib (21.02

kg)

21,62*71.85 /55.85 = 27,81kg FeO

21,81kg -- 71.85 FeO
X -- 55.85 Fe

X = 27,81*55.85 /71.85 = 21,61kg Fe
27,81– 21,61= 6,2 kg O₂
konsentrat tarkibida SiO₂ 6,5 % + Al₂O₃ + CaO + As₂O₃ = 1.55%

2 – bosqichda balansda 0.3 X = 9 + 0.75 Y da X va Y ni topib olamiz.

Shlak va flyus o‘rtasidagi tofovutni topib olamiz. (39.64 kg)
0.3Y(Y + 39.64) = 6,5+ 0.75Y
0.3Y + 11.89 = 6,5+0.75Y
0.3Y – 0.75Y = 6 –11.89
- 0.45Y = -5,39
Y = 11,97 kg
Flyus tarkibi: FeO - 5.3 %, SiO₂ – 75 %, Al₂O₃ – 13.2 %, CaO – 5.2 %
boshqalar – 1 %.
Flyus massasi: 11,97 kg

1) 11,97kg 100%
X -- 5.3 %FeO
X=11,97*5.3/100 = 0.634 kgFeO
0.634kg -- 71.85FeO
X 55.85
X =0.634*55.85/71.85 =0,492
0.634– 0.492 = 0.142
2) 11,97 ---------- 100%
X -- 7.5 %
X = 11,97*75 /100 = 8,97kg SiO₂
3) 11,97kg 100%
X -- 13.2 %
X = 11,97*13,2/ 100 = 11,58 kg Al₂O₃
4) 11,97kg 100%
X -- 5.2 %
X=11,97*5.2/100 = 0.62kgCaO

3. 
   boshqalar -- 0.166kg
   

Shlak massasi:
39.64 + 11,97= 51,61 kg
Shlak tarkibi: CuS, FeO, SiO₂, Al₂O₃, Ca O vaboshqalar.
Cu –0.5kg S – 0.6 kg hisobga olib shlak tarkibidagi birikmalarnimassasini topamiz.
51,61 – 0.5 – 0.6 = 50,51 kg
FeO = 21,62 + 11,97 *0.053 = 22,25 kg
SiO₂ = 6,5+ 11,97 *0.75 = 15,47kg
Al₂O₃ = 2 + 11,97* 0.135 = 3,61 kg
CaO = 0,3+ 11,97*0.052 = 0.92kg
Boshqalar = 9.46kg

Agar shixta tarkibidagi namlik W-5 % bo‘lsa unda pechga

(100 + 11,97) /0.95 – (100 + 11,97) = 5,89 kg H₂O
Shteyn tarkibida S ning miqdorini hisobga olib
35,2– 7,20 – 0.6 = 27,4 kg S
S + O₂ = SO₂ = 43.8 kg
Shlakka Pb ning 70 % o‘tadi.
0.5 *0.7 = 0.35 kg Pb shlakka o‘tadi. Zn ni 30 % i shlakka o‘tadi.
4.3 *0.3 = 1.29kg Zn shlakka o‘tadi. 100 % konsentrat uchun kerak bo‘ladigan O₂ miqdori:
S₂ oksidlanishi uchun 27,4kg
Fe 6.02 kgO₂
Shteynga 0.7 kgO₂
Umumiy 34,12 kg O₂ kerak bo‘lgan Bundan tashqari N₂ miqdori:
34,12/ 0.23* 0.77 = 114,22 kg N₂
Zn ni 67 % gazga o‘tadi.
4.3* 0.67 = 2,881 kg ZnS + O₂ = ZnO↑ +SO₂

Hosil bo‘lgan gazlar tarkibi va miqdori:

kg	m3	%
SO2 = 57.02	19.63	16,7
N2 = 114,22	89,90	76.5
H2O = 5.89	7.21	6,1
ZnO = 2,881	0.78	0,7
Jami = 180,011	117,52	100

SO₂m³= 57.02 *22.4 /64 = 19.63

N₂m³= 117.94* 22.4 /28 = 89,90
H₂O m³= 5.89 *22.4 / 18 = 7,21 ZnO m³= 2,881 *22.4 /81.38=0,78

Material balans

Komponent	Yuklandi				Olindi
	Konspekt	Flyus	Boy xavo	Jami		Shteyn	Shlak	Gaz	Jami
Cu	15.5			15,5		15.19	0.32		15,51
Fe	29	0.49		29,49		7.38	21.56		28,94
S	35,2			35,2		7.20	0.6	28,51	35,05
O2		0.144	34.12	34,264		0.61	7.14	27.634	35.2
Pb	0.5			0.5		0.15	0.35		0.5
Zn	4.3			4.3		0.129	1.29	3.015	4.34
SiO3	6.5	8.97		15,47			15.82		15.82
Al2O3	2	1.58		3.58			2.73		2.73
As2O3	0.2	0.23		0.43			0.25		0.25
CaO	0.3	0.62		0,92			0.98		0.98
H2O	5.89			5.89				5.89	5.89
N2			114.22	114,22				114,22	114,22
Boshqalar	6.5	0.166		6,666			5.316	1.7	7,016
Jami	105.89	12.2	148,34	266,42		30,659	56,356	179,859	266,42

3.