| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oxygen supplying pipe which is favorably used for a sintering device for performing sintering operation to supply gas fuel and concurrently enrich oxygen. <P>SOLUTION: In an oxygen supplying pipe in an oxygen-gas fuel supplying device in which a baffle plate is disposed at a middle part in a height direction of a hood provided above a material charging layer at a downstream side of an ignition furnace, a gas fuel supplying pipe for supplying gas fuel into air is disposed below the baffle plate, and the oxygen supplying pipe for blowing out oxygen into air is disposed above the baffle plate, an oxygen blowout port of a branch pipe branched from a header is characteristically formed such that the size and/or pitch of the blowout port is sequentially changed so that oxygen blowout amounts at the upper stream side and the lower stream side become same, or the oxygen blowout port is composed of two groups of different directions at the upper stream side and the lower stream side of the branch pipe branched from the header and the branch pipes of the respective groups are alternately disposed, in the oxygen supplying pipe for the sintering device. <P>COPYRIGHT: (C)2013,JPO&INPIT |
