Title:
METHOD FOR BLOWING SOLID FUEL INTO BLAST FURNACE
Document Type and Number:
Japanese Patent JP2005264189
Kind Code:
A
Abstract:
To provide a method for blowing a powdery solid fuel into a blast furnace, which prevents an operation trouble due to the separation of tar, stably blows the solid fuel, and increases the combustion rate of the solid fuel blown into the blast furnace.
When blowing the preheated solid fuel into the blast furnace 1 together with a carrier gas through a lance 4 for blowing the solid fuel arranged in a blow pipe 5 connected to a tuyere 6, this blowing method includes adjusting a preheating temperature or a holding period of time in the preheating temperature, in accordance with the characteristics of the solid fuel, so that the tar can not be separated in the lance for blowing the solid fuel.
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Inventors:
OISHI HITOSHI
ISHIOKA MUNEHIRO
OKADA KUNIAKI
SATO MICHITAKA
MURAI RYOTA
ISHIOKA MUNEHIRO
OKADA KUNIAKI
SATO MICHITAKA
MURAI RYOTA
Application Number:
JP2004074972A
Publication Date:
September 29, 2005
Filing Date:
March 16, 2004
Export Citation:
Assignee:
JFE STEEL KK
International Classes:
C21B5/00; (IPC1-7): C21B5/00
Attorney, Agent or Firm:
Yasumitsu Nakahama
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