SU407954A1 - FURMA FOR HEATING AND BLOWING OF METAL BY FUEL-OXIDATIVE MIXTURE - Google Patents

FURMA FOR HEATING AND BLOWING OF METAL BY FUEL-OXIDATIVE MIXTURE

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Publication number
SU407954A1
SU407954A1 SU1810720A SU1810720A SU407954A1 SU 407954 A1 SU407954 A1 SU 407954A1 SU 1810720 A SU1810720 A SU 1810720A SU 1810720 A SU1810720 A SU 1810720A SU 407954 A1 SU407954 A1 SU 407954A1
Authority
SU
USSR - Soviet Union
Prior art keywords
fuel
heating
metal
furma
blowing
Prior art date
Application number
SU1810720A
Other languages
Russian (ru)
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.)
Filing date
Publication date
Application filed filed Critical
Priority to SU1810720A priority Critical patent/SU407954A1/en
Application granted granted Critical
Publication of SU407954A1 publication Critical patent/SU407954A1/en

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/10Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Description

1one

Изобретение относитс  к металлургии черных металлов и может быть применено в сталеплавильных агрегатах.This invention relates to the metallurgy of ferrous metals and can be applied in steelmaking units.

Известна газокислородна  фурма, состо ща  из корпуса и трех р дов сопл, расположенных на разных уровн х, причем оси сопл верхнего р да пересекаютс  с ос ми сопл среднего р да и служат дл  дожигани  вдуваемого топлива и выдел ющейс  окиси углерода .The known gas-oxygen lance consisting of a body and three rows of nozzles located at different levels, the nozzle axes of the upper row intersecting the axes of the nozzles of the middle row and serve to burn off the injected fuel and liberated carbon monoxide.

Однако така  фурма из-за дефицита технического кислорода в сталеплавильных цехах не позвол ет сжигать большие количества топлива над поверхностью ванны. Кроме того, относительно малые скорости истечени  топливных и кислородных струй не обеспечивают достаточно эффективного смешени  и, следовательно , сжигани  топлива над поверхностью ванны.However, such a lance, due to the lack of technical oxygen in steel-smelting shops, does not allow burning large amounts of fuel above the bath surface. In addition, the relatively low flow rates of fuel and oxygen jets do not provide a sufficiently effective mixing and, therefore, burning of fuel above the bath surface.

Целью изобретени   вл етс  повышение скорости нагрева и обезуглероживани  рафинируемого металла и снижение угара железа.The aim of the invention is to increase the rate of heating and decarburization of the metal to be refined and to reduce the loss of iron.

Это достигаетс  тем, что фурма снабжена источником высокоскоростной струи, например горелкой, заканчивающейс  соплом Лавал , помешенным в верхнюю часть центрального канала, где имеютс  отверсти , соедин ющие центральный канал с атмосферой нечи в области подсводового пространства.This is achieved in that the lance is provided with a high-speed jet source, for example a burner, ending with a Laval nozzle placed in the upper part of the central channel, where there are openings connecting the central channel to the atmosphere in the underwater space.

На чертеже изображена предлагаема  фурма .The drawing shows the proposed lance.

Фурма содержит источник высокоскоростной струи, например горелку 1, заканчивающейс  соплом Лавал  2, центральный канал 3 с отверсти ми 4. Природный газ к горелке подводитс  через трубку 5. Меньша  часть кислорода через трубку 6 подводитс  к горелке , а больша  часть через трубку 7 и отверсти  8 подаетс  в рафинируемый металл. Фурма содержит систему охлаждени  водой. Работает фурма следующим образом. В любой период плавки под сводом печи всегда имеетс  гор ча  окислительна  атмосфера сThe lance contains a high-speed jet source, for example burner 1, ending with a Laval nozzle 2, central channel 3 with holes 4. Natural gas is supplied to the burner through tube 5. A smaller portion of oxygen is supplied through tube 6 to the burner, and most through tube 7 and holes 8 is fed to the metal to be refined. The lance contains a water cooling system. Works lance as follows. At any period of melting under the furnace roof there is always a hot oxidizing atmosphere with

содержанием кислорода вплоть до 21%, так как часть нагретого вентил торного воздуха транзитом проходит через рабочее пространство . По данным теплотехнических исследований это количество может составл ть от 10 доoxygen content up to 21%, as part of the heated fan air in transit passes through the working space. According to the data of heat engineering studies, this amount can be from 10 to

115 10 .115 10.

В период завалки, прогрева и чистого кипени  предлагаема  фурма работает как отопительна . При этом расход природного газа на горелку 1 составл ет (1,0-1,5) 10 , аDuring the period of filling, warming up and pure boiling, the proposed lance works as heating. The consumption of natural gas to the burner 1 is (1.0-1.5) 10, and

общий расход кислорода на фурму 1,5 10 м/ /час, в том числе на горелку 400 , через продувочные отверсти  8-Г100 .the total consumption of oxygen for the lance is 1.5–10 m / hour, including the burner 400, through the 8-G100 purge ports.

Расход кислорода на фурму и распределение его между горелкой 1 и отверсти ми 8Oxygen consumption per lance and its distribution between burner 1 and openings 8

SU1810720A 1972-07-14 1972-07-14 FURMA FOR HEATING AND BLOWING OF METAL BY FUEL-OXIDATIVE MIXTURE SU407954A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1810720A SU407954A1 (en) 1972-07-14 1972-07-14 FURMA FOR HEATING AND BLOWING OF METAL BY FUEL-OXIDATIVE MIXTURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1810720A SU407954A1 (en) 1972-07-14 1972-07-14 FURMA FOR HEATING AND BLOWING OF METAL BY FUEL-OXIDATIVE MIXTURE

Publications (1)

Publication Number Publication Date
SU407954A1 true SU407954A1 (en) 1973-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1810720A SU407954A1 (en) 1972-07-14 1972-07-14 FURMA FOR HEATING AND BLOWING OF METAL BY FUEL-OXIDATIVE MIXTURE

Country Status (1)

Country Link
SU (1) SU407954A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2630730C1 (en) * 2016-11-24 2017-09-12 Общество с ограниченной ответственностью "Девелопмент-Липецк" Tip of gas-oxygen lance for blowing melt by oxidizing gas in oxygen converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2630730C1 (en) * 2016-11-24 2017-09-12 Общество с ограниченной ответственностью "Девелопмент-Липецк" Tip of gas-oxygen lance for blowing melt by oxidizing gas in oxygen converter
RU2630730C9 (en) * 2016-11-24 2017-10-26 Общество с ограниченной ответственностью "Девелопмент-Липецк" Tip of gas-oxygen lance for blowing melt by oxidizing gas in oxygen converter

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