SU454254A1 - The method of redistribution of iron in the oxygen converter - Google Patents
The method of redistribution of iron in the oxygen converterInfo
- Publication number
- SU454254A1 SU454254A1 SU1853797A SU1853797A SU454254A1 SU 454254 A1 SU454254 A1 SU 454254A1 SU 1853797 A SU1853797 A SU 1853797A SU 1853797 A SU1853797 A SU 1853797A SU 454254 A1 SU454254 A1 SU 454254A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- iron
- redistribution
- purge
- oxygen
- oxygen converter
- Prior art date
Links
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
1one
Изобретение относитс к черной металлургии , конкретно к кислородно конвертерному переделу.The invention relates to ferrous metallurgy, specifically to an oxygen-converting redistribution.
Известны способы передела чугуна в кислородном конвертере путем продувки ванны кислородом сверху при переменном положении фурмы над поверхностью ванны и подачи в конвертер рудно-известкового расплава.Known methods of redistribution of iron in the oxygen converter by blowing the bath with oxygen from above with a variable position of the tuyere above the bath surface and feeding the ore-lime melt into the converter.
Слабое удаление из расплава вредных примесей - фосфора и серы происходит в св зи с отсутствием регламентации расположени фурмы над поверхностью ванны по ходу продувки .The weak removal of harmful impurities from the melt — phosphorus and sulfur — occurs due to the lack of regulation of the position of the tuyere above the bath surface during the purge.
Цель изобретени - обеспечить более полное удаление из металла фосфора и серы в ходе продувки.The purpose of the invention is to provide more complete removal of phosphorus and sulfur from the metal during purging.
Это достигаетс тем, что рассто ние между фурмой и уровнем спокойной ванны устанавливают в пределах ( от начала до истечени 30% продолжительности продувки,This is achieved by the fact that the distance between the lance and the level of the calm bath is set to within (from the beginning to the expiration of 30% of the duration of the purge,
() - до истечени 60% продолжительности продувки, () D ln-до конца продувки, где D - диаметр сопла формы, п - количество сопл.() - until the expiration of 60% of the duration of the purge, () D ln-until the end of the purge, where D is the diameter of the nozzle of the mold, n is the number of nozzles.
В кислородный конвертер загружают охладители , заливают чугун фосфористый и известково-железпстый расплав, содержащий 50% Реобщ и 40% СаО, затем ведут продувку кислородом с интенсивностью 5 в 1 мин. Во врем продувкп положение фурмы поддерживают в пределах, указанных выше, остановку продувкп осуш,ествл ют при содержании углерода Б мeтaЛv e в пределах 0,07-0,12%, при этом содержание фосфора не превышает 0,022%.Coolers are loaded into the oxygen converter, cast iron is phosphorous and lime-iron melt containing 50% Reost and 40% CaO, then they are purged with oxygen with an intensity of 5 in 1 min. During the purge, the position of the tuyere is maintained, within the limits indicated above, to stop the purge of the purge, with a carbon content of B metavl e within 0.07-0.12%, while the phosphorus content does not exceed 0.022%.
Предмет изобретени Subject invention
Способ передела чугуна в кислородном конвертере , включаюш,ий продувку кислородомThe method of redistribution of iron in an oxygen converter, including, blowing oxygen
сверху при переменном положении кислородной фурмы над поверхностью ванны и подачу известкового расплава, отличаюш,ийс тем, что, с целью более полного удалени из металла фосфора и серы, рассто ние междуwhen the oxygen tuyere is alternately positioned over the surface of the bath and the flow of calcareous melt is different, in that, in order to remove phosphorus and sulfur from the metal more completely, the distance between
фурмой и поверхностью спокойной ванны устанавливают в пределах ()Z)/n от начала до истечен1ш 30% продолжительности продувки , () - до истечени 60%the tuyere and the surface of the calm bath are set within () Z) / n from the beginning to the expiration of 1% 30% of the duration of the purge, () - to the expiration of 60%
продолжительности продувки, (8-i-l2) - до конца продувкп, где D - диаметр сопла фурмы, п - количество сопл.the duration of the purge (8-i-l2) - until the end of the purge, where D is the diameter of the nozzle of the tuyere, n is the number of nozzles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1853797A SU454254A1 (en) | 1972-12-06 | 1972-12-06 | The method of redistribution of iron in the oxygen converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1853797A SU454254A1 (en) | 1972-12-06 | 1972-12-06 | The method of redistribution of iron in the oxygen converter |
Publications (1)
Publication Number | Publication Date |
---|---|
SU454254A1 true SU454254A1 (en) | 1974-12-25 |
Family
ID=20534145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1853797A SU454254A1 (en) | 1972-12-06 | 1972-12-06 | The method of redistribution of iron in the oxygen converter |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU454254A1 (en) |
-
1972
- 1972-12-06 SU SU1853797A patent/SU454254A1/en active
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