| 摘要 |
PROBLEM TO BE SOLVED: To provide a smaller dust blow-in device for a waste melting furnace, capable of blowing dust from a main tuyere into a furnace body. SOLUTION: The dust blow-in device 20 is provided for blowing dust collected after discharged from the waste melting furnace which thermally decomposes wastes in a furnace body 10 and melts residuals, from the tuyere 12 into the furnace body 10 together with oxygen containing gas. It comprises the tuyere 12 mounted on the furnace body 10, a blow pipe 23 connected to the tuyere 12 of the furnace body 10, and an oxygen containing gas supply pipe 22 for supplying the oxygen containing gas into the blow pipe 23. The oxygen containing gas supply pipe 22 is connected to the blow pipe 23 via an intermediate connection pipe 24 having a branch port 28 for combining the dust. At least, wear resistant material layers 26C, 23C, 24C are provided on the inner faces of the tuyere 12, the blow pipe 23 and the intermediate connection pipe 24, respectively. COPYRIGHT: (C)2008,JPO&INPIT
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