Title:
IMMERSION TUBE IN DEGASSING EQUIPMENT
Document Type and Number:
Japanese Patent JPH1180828
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To extend the service life of an immersion tube by improving the cooling of a core metal forming the immersion tube in a degassing equipment. SOLUTION: Cooling water is supplied into a water supplying tube 14 by driving awater supplying pump 19, and after promoting the cooling of double tube core metals 13 and a refractory 3 by flowing the cooling water into a cooling water piping 17 arranged in the gap of the double tube core metals 13, the cooling water is drained from a drainage pipe 10. Since the cooling water is used as the cooling medium, the cooling capacity can drastically be increased. Further, since the cooling of the double tube core metals 13 is executed by supplying the cooling gas into the gap of the double tube core metals 13 from a cooling gas supplying tube, the extension of the service life of the immersion tube 10 is achieved. In the case the cooling water piping 17 breaks from happening, the steam developed caused by water breakage is quickly escaped to the outer part through a gas exhaust opening hole 16 to prevent the steam explosion. Further, the steam in the cooling water piping 17 is escaped to the outer part through a safety valve 21 arranged in each of the water supplying pipe 14 and the drainage pipe 15.
Inventors:
YOKOYAMA MITSUNOBU
TAKADA SHIGENOBU
TAKAHASHI KIYOSHI
TANAKA MASATO
TAKADA SHIGENOBU
TAKAHASHI KIYOSHI
TANAKA MASATO
Application Number:
JP24524797A
Publication Date:
March 26, 1999
Filing Date:
September 10, 1997
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
C21C7/10; (IPC1-7): C21C7/10
Attorney, Agent or Firm:
Eiichi Kobayashi