[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS6479317A - Gas blowing method of reflux type degassing device - Google Patents

Gas blowing method of reflux type degassing device

Info

Publication number
JPS6479317A
JPS6479317A JP63158309A JP15830988A JPS6479317A JP S6479317 A JPS6479317 A JP S6479317A JP 63158309 A JP63158309 A JP 63158309A JP 15830988 A JP15830988 A JP 15830988A JP S6479317 A JPS6479317 A JP S6479317A
Authority
JP
Japan
Prior art keywords
molten steel
reflux
gas
suction pipe
blowing
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP63158309A
Other languages
Japanese (ja)
Inventor
Kiyoshi Takahashi
Nobumoto Takashiba
Shinji Kojima
Haruji Okuda
Shigeru Omiya
Hisashi Osanai
Tomeichi Ikeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP63158309A priority Critical patent/JPS6479317A/en
Publication of JPS6479317A publication Critical patent/JPS6479317A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE:To accelerate the reflux of a molten steel and to improve vacuum degassing treatment capacity by blowing gases for reflux of the molten steel under different gas pressures from the respective systems of gas blowing nozzles to a suction pipe immersed into the molten steel. CONSTITUTION:The suction pipe and discharge pipe of a vacuum vessel are immersed into the molten steel in a container for molten steel such as ladle and the gases for reflux of the molten steel are blown through the plural gas blowing nozzles into the suction pipe to cause the reflux of the molten steel to the vacuum vessel, by which the vacuum degassing is executed. The gas blowing nozzles provided to the suction pipe 4 of the above-mentioned reflux type degassing device are separated to the two systems; 1st and 2nd blowing nozzles 10, 11, disposed in the upper and lower positions. Furthermore, the pressure of the gas to be supplied to the 2nd blowing system is set higher than the pressure of the gas to be supplied to the 1st blowing system 10. The gas for reflux is thereby made to arrive at the central area in the section of the suction pipe 4 by which the reflux of the molten steel is accelerated and the degassing treatment capacity of the device is enhanced.
JP63158309A 1987-06-29 1988-06-27 Gas blowing method of reflux type degassing device Pending JPS6479317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63158309A JPS6479317A (en) 1987-06-29 1988-06-27 Gas blowing method of reflux type degassing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP15969987 1987-06-29
JP63158309A JPS6479317A (en) 1987-06-29 1988-06-27 Gas blowing method of reflux type degassing device

Publications (1)

Publication Number Publication Date
JPS6479317A true JPS6479317A (en) 1989-03-24

Family

ID=26485469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63158309A Pending JPS6479317A (en) 1987-06-29 1988-06-27 Gas blowing method of reflux type degassing device

Country Status (1)

Country Link
JP (1) JPS6479317A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08283829A (en) * 1995-03-30 1996-10-29 Veitsch Radex Ag Fuer Feuerfeste Erzeugnisse Blast pipe for degassing container
JP2002363636A (en) * 2001-06-13 2002-12-18 Nkk Corp Method for smelting molten steel in rh vacuum degassing apparatus
JP2007031820A (en) * 2005-07-29 2007-02-08 Jfe Steel Kk Vacuum-degassing treating method for molten steel
JP2015096639A (en) * 2013-11-15 2015-05-21 新日鐵住金株式会社 Refining method for molten steel
JP2015168860A (en) * 2014-03-07 2015-09-28 黒崎播磨株式会社 vacuum degasser
JP2015172237A (en) * 2014-02-21 2015-10-01 Ｊｆｅスチール株式会社 Method for purifying hot metal and immersion lance for gas blowing
JP2016079469A (en) * 2014-10-17 2016-05-16 新日鐵住金株式会社 Desulfurization method for molten steel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516103A (en) * 1974-07-05 1976-01-19 Nippon Steel Corp YOKODATSUGASUSOCHINO FUKATSUSEIGASUFUKIKOMIHOHO
JPS5811721A (en) * 1981-07-16 1983-01-22 Kawasaki Steel Corp Vacuum refining method for molten steel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516103A (en) * 1974-07-05 1976-01-19 Nippon Steel Corp YOKODATSUGASUSOCHINO FUKATSUSEIGASUFUKIKOMIHOHO
JPS5811721A (en) * 1981-07-16 1983-01-22 Kawasaki Steel Corp Vacuum refining method for molten steel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08283829A (en) * 1995-03-30 1996-10-29 Veitsch Radex Ag Fuer Feuerfeste Erzeugnisse Blast pipe for degassing container
JP2002363636A (en) * 2001-06-13 2002-12-18 Nkk Corp Method for smelting molten steel in rh vacuum degassing apparatus
JP2007031820A (en) * 2005-07-29 2007-02-08 Jfe Steel Kk Vacuum-degassing treating method for molten steel
JP2015096639A (en) * 2013-11-15 2015-05-21 新日鐵住金株式会社 Refining method for molten steel
JP2015172237A (en) * 2014-02-21 2015-10-01 Ｊｆｅスチール株式会社 Method for purifying hot metal and immersion lance for gas blowing
JP2015168860A (en) * 2014-03-07 2015-09-28 黒崎播磨株式会社 vacuum degasser
JP2016079469A (en) * 2014-10-17 2016-05-16 新日鐵住金株式会社 Desulfurization method for molten steel

Similar Documents

Publication Publication Date Title
JPS6479317A (en) Gas blowing method of reflux type degassing device
WO2003027335A1 (en) Method for refining molten iron containing chromium
IT1264669B1 (en) REACTOR FOR THE REMOVAL OF IMPURITIES FROM A LIQUID
EP0325242A3 (en) Method for refining molten steel in a vacuum
GB2162204A (en) Treatment of metal melts under reduced pressure with scavenging gas
US5242485A (en) Process and apparatus for vacuum treatment of metals
GR3032870T3 (en) Process and device for degassing a liquid in a substantially closed system
JPS5562117A (en) Dh vacuum degassing method for molten steel
SU1650717A1 (en) Device for vacuum-processing of metal with simultaneously treating it in a slag column
JPS57205344A (en) Method and apparatus for blooming glass bottle
JPS55154537A (en) Method and apparatus for carrying molten metal
GB833925A (en) A process and apparatus for the vacuum treatment of steel or steel alloy
JPS5689363A (en) Vessel for continuous casting and feeding of iron
JPS5514874A (en) Exhausting apparatus for vacuum degassing of molten steel
RU93052143A (en) METHOD OF BLOWING METAL BLEEDING
RU2092275C1 (en) Method of steel treatment in process of continuous casting
ES8503723A1 (en) Metallurgical vessel
JPS57137415A (en) Steel making method for chromium-containing steel
CN117900402A (en) Purification device and method for continuous casting tundish molten steel
JPS5919717Y2 (en) Vacuum degassing equipment
JPS5782418A (en) Degassing method for molten steel
Abratis et al. Treatment of Metal Melts Under Reduced Pressure With Scavenging Gas
Metz et al. Method of Desulfurizing a Ferrous Melt
JPS55161023A (en) Blowing method for inactive gas of circulation type degassing apparatus
JPS6431915A (en) Circulating flow type vacuum degassing method