| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve such a problem that decomposed gas containing a combustible component such as a tar component or the like, which is generated when matter to be treated containing the combustible component is heat-treated by dry distillation or the like, is guided to the combustible component removing means of a next process through a gas conduit and discharged while the combustible component is removed but, when the temperature of the gas conduit lowers, the tar component is solidified to close the gas conduit. SOLUTION: The outside of the gas conduit 5 is surrounded by a heat insulating jacket 50 and a part of the hot gas used in heating in a heat treatment furnace 1 is introduced into the heat insulating jacket to heat the jacket to prevent the solidification of the tar component.</p> |
