WASTE INCINERATOR BOILER

To reduce a size of a boiler in a state where a boiler is prevented from being closed due to dust adhesion to a heat transfer pipe.SOLUTION: A waste incinerator boiler 20 is configured such that a plurality of heat transfer groups are continuously provided in a waste incinerator 10 so as to be disposed in a multistage manner in a height direction, where the heat transfer pipe group has a plurality of heat transfer pipes 6 disposed in a horizontal direction. The waste incinerator boiler is configured to generate steam with heat exchange to and from exhaust gas to enable further overheating. Adjacent stages of heat transfer pipe groups are disposed so that a horizontal position of a heat transfer pipe axis is deviated by 1/10-1/2 of a distance between axes of the heat transfer pipes 6, and comprise pressure wave generators 62, 63 configured to mix and combust fuel gas and oxidant gas under high pressure, generate pressure waves and then release the pressure waves into the boiler.SELECTED DRAWING: Figure 3 【課題】伝熱管へのダスト付着によるボイラ閉塞を防ぎながらボイラを小型化する。【解決手段】廃棄物焼却炉１０に連設され、伝熱管６を水平方向に複数配設した伝熱管群が、高さ方向に複数段配設されていて、排ガスとの熱交換により蒸気を発生して更に過熱する廃棄物焼却炉ボイラ２０であって、隣り合う段の伝熱管群は、伝熱管軸の水平方向の位置が、伝熱管６の軸間距離の１／１０〜１／２ずれた位置となるように配設されていると共に、燃料ガスと酸化剤ガスを高圧下で混合し燃焼して圧力波を発生させボイラ内に圧力波を放出する圧力波発生装置６２，６３を備える。【選択図】図３