| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device and a method capable of blowing a reducing material into a blast furnace, in which clogging of a blowing lance is prevented, so that the reducing material can be blown into the blast furnace stably and reliably. <P>SOLUTION: In a blowing lance 10A, a lance cooling water channel 12 is provided to a lance pipe 11, so that the lance pipe 11 is cooled by the cooling water flowing in the lance cooling water channel 12. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
