| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce an operation expenditure without making a facility complicated. SOLUTION: In a method of melting waste material for supplying oxygen rich gas and auxiliary fuel into a reaction tower 1, igniting and melting the waste material, metallic fine pieces capable of being oxidized and ignited in a predetermined temperature range are supplied into the reaction tower 1 in addition to auxiliary fuel such as fossil fuel or the like in order to keep an inside part of the reaction tower 1 in a state in which ignited ash can be melted. With such an arrangement as above, it is possible to perform an efficient melting operation with a less amount of carrying energy, reduce substantially a feeding amount of auxiliary fuel, resulting in that it has a substantial effect in view of reducing operation expenditure. In particular, in the case that some fine metallic pieces are transported with oxygen rich gas and supplied into the reaction tower 1, it may be efficiently transported with a simple configuration and it is effective in view of saving facility expenditure and operation expenditure.</p> |
