SU365384A1 - METHOD OF BLASTING - Google Patents
METHOD OF BLASTINGInfo
- Publication number
- SU365384A1 SU365384A1 SU1449565A SU1449565A SU365384A1 SU 365384 A1 SU365384 A1 SU 365384A1 SU 1449565 A SU1449565 A SU 1449565A SU 1449565 A SU1449565 A SU 1449565A SU 365384 A1 SU365384 A1 SU 365384A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- slag
- furnace
- blast
- iron
- charge
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 5
- 238000005422 blasting Methods 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 239000002893 slag Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- -1 MpO Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
1one
Изобретение откоситс к черной металлургии , в частностн, к плавке чугуна в доменных печах.The invention retreats to the steel industry, in particular, to the smelting of iron in blast furnaces.
Известен способ доменной нлавки с загрузкой в доменную печь основных шлаков сталеплавильного производства раздельно с рудной составл ющей шихты.There is a known method of blast furnace loading with the main slags of steelmaking production loaded into the blast furnace separately from the ore component of the charge.
Недостатком известного способа вл етс недостаточна газопроницаемость доменной шихты.The disadvantage of this method is insufficient gas permeability of the blast furnace charge.
Целью узобретени вл етс зстранение указанного недостака путем загрузки в домен ную печь совместно с рудной частью шихты дробленного отсе нного от мелочи шлака кислО )род1но-:коН|Вертерного производства в количестве до 500 кг/т чугуна следующего химического состава (в %):The purpose of the invention is to eliminate the indicated shortage by loading into the blast furnace together with the ore part of the batch of crushed slag acid, slag sour) 1): kon |
Fe14-22Fe14-22
МпО7-12MpO7-12
СаО40-52CaO40-52
MgO4-7MgO4-7
F0-31F0-31
SiOa12-20SiOa12-20
АЬОз2-3ABOz2-3
S0,2S0,2
Р201,2Р201,2
Компоненты СаО, MgO, МпО, Ре и F составл ют около 80% шлака кислородно-конвертерного производства и вл ютс полезными дл доменной плавки.The components of CaO, MgO, MpO, Fe and F constitute about 80% of the slag from the oxygen converter production and are useful for blast-furnace smelting.
Осиовность И1лака Haze I1laka
кислородио-конвертер| 1 А / .oxygen converter | 1 A /.
2,53 ,0 ( -:-),доменного- ного производства2.53, 0 (- :-), blast-furnace production
о1 Woo1 Wo
1,25-1,30, поэтому избыточна часть окнсн кальци шлака кислородно-конвертерного производства используетс вместо сырого известн ка . Окись магни и фтор делают доменный шлак легкоилавкнм и подвижным, что используетс дл повышени основности шлака н 10 улучшени качества чугуна. Закись марганца Н1лака кислородно-конвертерного производства восстаиавливаетс в процессе илавки, увеличива содержание марганца в чугуие; поэтому расход марганцевой руды со5 крашают вплоть до полного ее исключени из шихты в зависимости от иеобходимого содержани маргаица в выплавл емом чугуне. Расход железоручиой части шихты также несколько сокрашаетс , поскольку шлак кислороднокоивертерного производства вл етс железосодержаи1 ,сй добавкой.1.25-1.30, therefore, the excess calcium oxide of the slag from the oxygen converter production is used instead of raw limestone. Magnesium oxide and fluorine make blast furnace slag easy to melt and moveable, which is used to increase the basicity of slag n 10 to improve the quality of the iron. Oxide of manganese N1laka oxygen converter production is restored in the process of grades, increasing the manganese content in the pig iron; Therefore, the consumption of manganese ore co5 is dyed up to its complete elimination from the charge, depending on the required content, and margarica in the produced iron. The consumption of the iron-containing part of the charge is also somewhat reduced, since the slag of the oxygen-sinter production is iron-containing 1, an additive.
Предмет изобретени Subject invention
Способ доменной плавки с загрузкой в печь ручной части шихты, кокса, добавок и шлаков сталеплавильного производства, отличаюп{ийс тем, что, с целью повышени производительности печи, снижени расхода руд3 ной части шихты и добавок, шлак кислородноконвертерного производства в количестве до 4 500 /-сг/г чугуна ввод т в печь совместно с рудной составл ющей шихты.The method of blast smelting with loading into the furnace of the manual part of the charge, coke, additives and slags of the steelmaking industry differs from the fact that, in order to increase furnace productivity, reduce the consumption of ore3 of the mixture and additives, the slag of the oxygen converter production is up to 4 500 -gr / g of pig iron is introduced into the furnace together with the ore component of the charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1449565A SU365384A1 (en) | 1970-06-15 | 1970-06-15 | METHOD OF BLASTING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1449565A SU365384A1 (en) | 1970-06-15 | 1970-06-15 | METHOD OF BLASTING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU365384A1 true SU365384A1 (en) | 1973-01-08 |
Family
ID=20454121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1449565A SU365384A1 (en) | 1970-06-15 | 1970-06-15 | METHOD OF BLASTING |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU365384A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2156808C1 (en) * | 1999-11-25 | 2000-09-27 | ЗАО "Стальтрейд" | Burden for melting cast iron |
| CN115449574A (en) * | 2022-08-30 | 2022-12-09 | 鞍钢股份有限公司 | Blast furnace smelting ultrahigh Al 2 O 3 Method for producing slag |
-
1970
- 1970-06-15 SU SU1449565A patent/SU365384A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2156808C1 (en) * | 1999-11-25 | 2000-09-27 | ЗАО "Стальтрейд" | Burden for melting cast iron |
| CN115449574A (en) * | 2022-08-30 | 2022-12-09 | 鞍钢股份有限公司 | Blast furnace smelting ultrahigh Al 2 O 3 Method for producing slag |
| CN115449574B (en) * | 2022-08-30 | 2023-06-20 | 鞍钢股份有限公司 | A method for smelting ultra-high Al2O3 slag in a blast furnace |
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