| 摘要 |
<p>An incinerator of sectional structure has an airpipe (36) for sending combustion air into a furnace. The airpipe is a straight pipe tapered off at end portion and closed by a plug (44) of castable refractory material filled up in the tapered portion (45) to improve the durability under high temperature circumstances. The airpipe is also inserted into a furnace through a hole (46) opened on an upper furnace wall, and a seal member (47) of easy spallable and castable refractory material fills up the gap between the airpipe and the hole to make easy exchange of the airpipe possible. <IMAGE></p> |
