RU94032282A - Method of steel melting in converter - Google Patents

Method of steel melting in converter

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Publication number
RU94032282A
RU94032282A RU94032282/02A RU94032282A RU94032282A RU 94032282 A RU94032282 A RU 94032282A RU 94032282/02 A RU94032282/02 A RU 94032282/02A RU 94032282 A RU94032282 A RU 94032282A RU 94032282 A RU94032282 A RU 94032282A
Authority
RU
Russia
Prior art keywords
melt
converter
purge
level
height
Prior art date
Application number
RU94032282/02A
Other languages
Russian (ru)
Other versions
RU2051179C1 (en
Inventor
В.Н. Хребин
Ю.Ф. Суханов
Д.В. Захаров
И.В. Сафонов
Н.И. Нырков
А.Я. Стомахин
В.И. Лебедев
Original Assignee
Акционерное общество "Новолипецкий металлургический комбинат"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Акционерное общество "Новолипецкий металлургический комбинат" filed Critical Акционерное общество "Новолипецкий металлургический комбинат"
Priority to RU94032282A priority Critical patent/RU2051179C1/en
Application granted granted Critical
Publication of RU2051179C1 publication Critical patent/RU2051179C1/en
Publication of RU94032282A publication Critical patent/RU94032282A/en

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Abstract

FIELD: metallurgy, particular, steel melting in converter. SUBSTANCE: top blowing of melt in converter is carried out through lance, lime and coolers are fed to melt, and chemical composition of melt is determined. Melt is poured into casting ladle, reducing agents are supplied to melt, and height of lance position is varied in direction of blowing above level of still molten bath. In course of blowing the lance height position above the level of still molten bath is varied in compliance with relationship offered in the invention description. EFFECT: higher efficiency.

Claims (1)

Изобретение относится к металлургии, в частности к выплавке стали в конвертере. Технический эффект при использовании изобретения заключается в повышении производительности и стабильности процесса выплавки стали в конвертере. Указанный технический эффект достигается тем, что продувают расплав в конвертере сверху через фурму, подают в расплав известь и охладители, определяют химсостав расплава, сливают расплав в разливочный ковш, подают в него раскислители, а также изменяют высоту положения фурмы по ходу продувки над уровнем спокойной ванны расплава. В процессе продувки высоту положения фурмы над уровнем спокойной ванны расплава изменяют по зависимости H1 = (0,9-1,2)•(3,4-14M); H2 = (0,8-1,1)•(2,2-4M); где Н1 и Н2 - значения высоты положения фурмы по ходу продувки над уровнем спокойной ванны расплава соответственно в первый период продувки, равный 0,4 - 0,5 всего времени продувки, и в остальной период до конца продувки, м; (0,9-1,2) и (0,8-1,1) - эмпирические коэффициенты, учитывающие массу расплава в конвертере, безразмерные; 3,4 и 2,2 - эмпирические величины, учитывающие закономерности шлакообразования и образования выбросов расплава из конвертера, м; 14 и 4 - эмпирические коэффициенты, учитывающие степень влияния количества шлака на выбросы расплава, м/т; М - текущее значение массы извести, подаваемой в конвертер к данному моменту времени продувки, т на 1 т расплава. Способ выплавки стали в конвертере предназначен для применения в конвертерных цехах металлургических предприятий.The invention relates to metallurgy, in particular to steelmaking in a converter. The technical effect when using the invention is to increase the productivity and stability of the steelmaking process in the converter. The specified technical effect is achieved by blowing the melt in the converter from above through a lance, feeding lime and coolers into the melt, determining the chemical composition of the melt, pouring the melt into the casting ladle, supplying deoxidizers to it, and also changing the height of the tuyere position along the purge course above the level of a calm bath melt. During purging, the height of the tuyere position above the level of a calm melt pool is changed according to the dependence H 1 = (0.9-1.2) • (3.4-14M); H 2 = (0.8-1.1) • (2.2-4M); where H 1 and H 2 are the values of the height of the tuyere along the purge above the level of a calm melt pool, respectively, in the first purge period, equal to 0.4 - 0.5 of the total purge time, and in the rest of the period until the end of purge, m; (0.9-1.2) and (0.8-1.1) are empirical coefficients that take into account the mass of the melt in the converter, dimensionless; 3.4 and 2.2 are empirical values that take into account the laws of slag formation and formation of melt emissions from the converter, m; 14 and 4 - empirical coefficients taking into account the degree of influence of the amount of slag on the emissions of the melt, m / t; M is the current value of the mass of lime supplied to the converter at a given time of purging, t per 1 ton of melt. The method of steelmaking in the converter is intended for use in the converter shops of metallurgical enterprises.
RU94032282A 1994-09-08 1994-09-08 Method of melting steel in converter RU2051179C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94032282A RU2051179C1 (en) 1994-09-08 1994-09-08 Method of melting steel in converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94032282A RU2051179C1 (en) 1994-09-08 1994-09-08 Method of melting steel in converter

Publications (2)

Publication Number Publication Date
RU2051179C1 RU2051179C1 (en) 1995-12-27
RU94032282A true RU94032282A (en) 1997-05-27

Family

ID=20160223

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94032282A RU2051179C1 (en) 1994-09-08 1994-09-08 Method of melting steel in converter

Country Status (1)

Country Link
RU (1) RU2051179C1 (en)

Also Published As

Publication number Publication date
RU2051179C1 (en) 1995-12-27

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