SU121457A1 - Method for producing low-sulfur pig iron in blast furnaces - Google Patents
Method for producing low-sulfur pig iron in blast furnacesInfo
- Publication number
- SU121457A1 SU121457A1 SU619041A SU619041A SU121457A1 SU 121457 A1 SU121457 A1 SU 121457A1 SU 619041 A SU619041 A SU 619041A SU 619041 A SU619041 A SU 619041A SU 121457 A1 SU121457 A1 SU 121457A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- slag
- pig iron
- producing low
- blast furnaces
- sulfur
- Prior art date
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
Известны способы ведени доменной плавки, обеспечивающие получение чугуна с пониженным содержанием серы.Methods of blast furnace smelting are known to provide low sulfur content cast iron.
Особенность предлагаемого способа нолученн малосернистого чугуна состоит в том, что, с целью обеспечени наибольшего использовамп серопоглотительной способности шлака, а также с целью снижени окислов железа в его конечном составе, процесс доменной плавки ведус перегревом шлака па 180-230° при в зкости его пе более 2.5 пуаз иThe peculiarity of the proposed method for obtaining low-sulfur pig iron is that, in order to ensure the greatest utilization of slag absorptivity, as well as to reduce iron oxides in its final composition, the blast smelting process vedus overheating of slag pa 180-230 ° with its viscosity more than 2.5 poise and
основности-eTQ-i,i -1,3 с обеспечением температуры кристаллизацииbasicity-eTQ-i, i -1,3 while ensuring the crystallization temperature
шлака не выше 1400. Дл обесиечеи1: максимального использовани серопоглотительной способности шлака в услови .х доменной плавки необ .ходимо обеспечить наибольшую раскислениость шлака. .Максимальна раскисленность шлака в горне доменной нечи обеспечиваетс как за счет факторов, уменьшающих поступление окислов железа в конечный шлак, так и за счет ускорени реакций раскислени шлака в горие. Снижение поступлени окислов железа в жидкий шлак, на.ход щийс в горне доменной печи, достигаетс за счет работы доменной печи на офлюсованном агломерате, повышенном давлении газов под колошниксзм и снижении в доменной ши.хте окислов марганца. Ускорение процессов восстановлени окислов железа из шлака, поступаюшего в горн печи из плав щейс шихты, достигаетс при определенных физико-химических свойствах шлака.slag is not higher than 1400. For the purpose of osiechei1: maximum use of slag sulfur absorption capacity under blast furnace smelting conditions it is necessary to ensure the highest deacidification of slag. The maximum deacidification of the slag in the blast furnace hearth is ensured both by factors that reduce the supply of iron oxides to the final slag, and by accelerating the reactions of deacidification of the slag to Goria. A decrease in the supply of iron oxides to liquid slag located in the hearth of a blast furnace is achieved by operating a blast furnace on a fluxed sinter, an increased pressure of gas under the furnace furnace and a decrease in manganese oxides in blast furnace. The acceleration of the reduction of iron oxides from slag entering the furnace hearth from the melting charge is achieved with certain physical and chemical properties of the slag.
Предмет изобретени Subject invention
Способ получени .малосернистого чугуна в доменных печа.х, отличающийс тем, что, с целью обеепечеии наибольшего использовани серопоглотительной способности шлака, а также с целью снижени окислов железа в конечном шлаке, процесс доменной плавки ведут с перегревом шлака на 180-230° при в зкости его не более 25 пуаз иThe method of producing low-sulfur pig iron in blast furnaces x, characterized in that, in order to ensure the greatest use of slag absorbing capacity, as well as to reduce iron oxides in the final slag, the blast-furnace smelting process is carried out with overheating of the slag 180-230 ° in its viscosity is not more than 25 poise and
СаО Cao
основности g.Q-1,1 -1,3 с обеспечением температуры кристаллизацииbasicity g.Q-1,1 -1,3 with ensuring the crystallization temperature
шлака не выше 1400°.slag not higher than 1400 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU619041A SU121457A1 (en) | 1959-02-10 | 1959-02-10 | Method for producing low-sulfur pig iron in blast furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU619041A SU121457A1 (en) | 1959-02-10 | 1959-02-10 | Method for producing low-sulfur pig iron in blast furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU121457A1 true SU121457A1 (en) | 1959-11-30 |
Family
ID=48393241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU619041A SU121457A1 (en) | 1959-02-10 | 1959-02-10 | Method for producing low-sulfur pig iron in blast furnaces |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU121457A1 (en) |
-
1959
- 1959-02-10 SU SU619041A patent/SU121457A1/en active
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