| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate fabrication of a burner that stably gasifies powdered coal.SOLUTION: A burner comprises a straight tube 32 and a plurality of tubules 33-1 to 33-n. The plurality of tubules 33-1 to 33-n include grooves formed along a spiral inside the tubule. The straight tube 32 is arranged among the plurality of tubules 33-1 to 33-n so that a spiral flow path is formed along the spiral between the straight tube 32 and the plurality of tubules 33-1 to 33-n. Such a burner 31 generates the swirl flow of a first gas when injecting the first gas flowing through the spiral flow path so as to suitably mix a second gas flowing through a linear channel 36 inside the straight tube 32 with the first gas so that the mixture gas can be suitably burned. Such a burner 31 can be more easily fabricated by inserting the straight tube 32 among the plurality of tubules 33-1 to 33-n in comparison with other burners separately having swirling blades for generating swirl flow.</p> |
