RU95117456A - METHOD OF PROCESSING STEEL IN THE CONTINUOUS CASTING PROCESS - Google Patents

METHOD OF PROCESSING STEEL IN THE CONTINUOUS CASTING PROCESS

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Publication number
RU95117456A
RU95117456A RU95117456/02A RU95117456A RU95117456A RU 95117456 A RU95117456 A RU 95117456A RU 95117456/02 A RU95117456/02 A RU 95117456/02A RU 95117456 A RU95117456 A RU 95117456A RU 95117456 A RU95117456 A RU 95117456A
Authority
RU
Russia
Prior art keywords
inert gas
metal
steel
nozzles
flow rate
Prior art date
Application number
RU95117456/02A
Other languages
Russian (ru)
Other versions
RU2092275C1 (en
Inventor
В.И. Уманец
Б.А. Чумарин
И.В. Сафонов
В.И. Лебедев
А.Ф. Копылов
В.Е. Шатохин
Original Assignee
Акционерное общество "Новолипецкий металлургический комбинат"
Filing date
Publication date
Application filed by Акционерное общество "Новолипецкий металлургический комбинат" filed Critical Акционерное общество "Новолипецкий металлургический комбинат"
Priority to RU95117456A priority Critical patent/RU2092275C1/en
Priority claimed from RU95117456A external-priority patent/RU2092275C1/en
Publication of RU95117456A publication Critical patent/RU95117456A/en
Application granted granted Critical
Publication of RU2092275C1 publication Critical patent/RU2092275C1/en

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Claims (1)

Способ обработки стали в процессе непрерывной разливки, включающий подачу жидкой стали из разливочного ковша в вакуум-камеру, создание в ней остаточного давления, подачу стали в промежуточный ковш через два патрубка под уровень металла, подачу в один из патрубков инертного газа, изменение расхода инертного газа, подачу металла из промежуточного ковша через разливочные стаканы в кристаллизаторы под уровень, вытягивание из кристаллизаторов слитков, а также обработку стали в вакуум-камере посредством струйного и циркуляционного вакуумирования, отличающийся тем, что при обработке стали в процессе непрерывной разливки производят циркуляцию (перетечение) стали из промежуточного ковша в вакуум-камеру и обратно с весовым расходом в 2 - 10 раз больше весового расхода стали из промежуточного ковша в кристаллизаторы, при этом расход инертного газа в один из патрубков устанавливают в пределах q = (1,2 - 6,5) nQ, а диаметр струи (потока) металла в патрубке, в который подают инертный газ, устанавливают в пределах D = (5 - 25)nQ, где q - расход инертного газа, м3/ч, Q - весовой расход металла из промежуточного ковша в кристаллизаторы, т/мин, D - диаметр струи (потока) металла в патрубке, в который подают инертный газ, мм, n - число циркуляций (перетоков) весового расхода металла из промежуточного ковша в вакуум-камеру и обратно, безразмерное, 1,2 - 6,5 - эмпирический коэффициент, учитывающий газодинамические закономерности подъема металла в патрубке пузырьками инертного газа, м3•мин/т•ч; 5 - 25 - эмпирический коэффициент, учитывающий гидравлические закономерности течения металла в патрубке, в который подают инертный газ, мм•мин/т.A method of processing steel in a continuous casting process, including supplying liquid steel from a casting ladle to a vacuum chamber, creating residual pressure in it, supplying steel to an intermediate ladle through two nozzles to a metal level, supplying inert gas to one of the nozzles, changing the inert gas consumption , supplying metal from the intermediate ladle through casting nozzles to the molds under the level, drawing the ingots out of the molds, and also treating the steel in a vacuum chamber by means of a jet and circulation vacuum characterized in that during the processing of steel during continuous casting, steel is circulated (transferred) from the intermediate ladle to the vacuum chamber and vice versa with a weight flow rate of 2 to 10 times the weight flow of steel from the intermediate ladle to the molds, while the inert gas in one of the nozzles is set within q = (1.2 - 6.5) nQ, and the diameter of the jet (stream) of metal in the pipe into which the inert gas is supplied is set within D = (5 - 25) nQ, where q is the inert gas flow rate, m 3 / h, Q is the mass flow rate of metal from between in the mold, t / min, D is the diameter of the stream (stream) of metal in the pipe into which the inert gas is supplied, mm, n is the number of circulations (flows) of the mass flow rate of the metal from the intermediate ladle to the vacuum chamber and vice versa, dimensionless, 1.2 - 6.5 is an empirical coefficient that takes into account the gas-dynamic laws of metal lift in the nozzle by inert gas bubbles, m 3 • min / t • h; 5 - 25 is an empirical coefficient that takes into account the hydraulic laws of the flow of metal in the pipe into which the inert gas is supplied, mm • min / t.
RU95117456A 1995-10-09 1995-10-09 Method of steel treatment in process of continuous casting RU2092275C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95117456A RU2092275C1 (en) 1995-10-09 1995-10-09 Method of steel treatment in process of continuous casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95117456A RU2092275C1 (en) 1995-10-09 1995-10-09 Method of steel treatment in process of continuous casting

Publications (2)

Publication Number Publication Date
RU95117456A true RU95117456A (en) 1997-07-27
RU2092275C1 RU2092275C1 (en) 1997-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU95117456A RU2092275C1 (en) 1995-10-09 1995-10-09 Method of steel treatment in process of continuous casting

Country Status (1)

Country Link
RU (1) RU2092275C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA019567B1 (en) * 2010-02-09 2014-04-30 Общество С Ограниченной Ответственностью "Тмт" Method for rate-regulated continuous vacuum degassing of molten steel

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