| 摘要 |
<p>PURPOSE:To reduce emission of NOx, etc. due to high-temperature combustion in free board part as well as raise the efficiency of combustion in bed portion by using an oxygen-enriched air of higher oxygen concentration than the usual air, obtained through an oxygen selectively permeable film, as a fluidizing gas. CONSTITUTION:Objects to be burned, such as wastes, etc., are charged into a furnace through a charging port 11. Since the combusting reaction of the wastes charged into the furnace by oxygen-enriched air supplied as a fluidizing gas in the bed portion 3 and an assisting fuel oil is quickly made, the wastes are mostly burned in the bed portion 3. In order words, the majority of the objects to be burned in the free board part of the conventional furnace can be burned in the bed portion. When spontaneously combustible wastes are burned, most of them is burned in the bed to prevent the occurrence of high temperature in the free board portion and the emission of thermal NOx.</p> |
