BURNER TIP AND BURNER WITH THE SAME

To provide a burner tip in which high temperature of a distal end portion facing an inside of a furnace is suppressed and which can be therefore reduced in damage.SOLUTION: Burner tips (2 and 2A) are provided that are arranged at a distal end portion of a burner (1) of a gasification furnace, and th...

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Bibliographische Detailangaben
Hauptverfasser: KIMURA AKITO, SANTO MASANORI, TAKEDA MAKOTO, SHIMIZU MASARU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a burner tip in which high temperature of a distal end portion facing an inside of a furnace is suppressed and which can be therefore reduced in damage.SOLUTION: Burner tips (2 and 2A) are provided that are arranged at a distal end portion of a burner (1) of a gasification furnace, and that comprise: tip bodies (21 and 21A); a fuel ejection nozzle (22) which ejects fuel into the gasification furnace; a plurality of oxidizer ejection ports (23) which eject oxidizer into the gasification furnace; and oxidizer transport paths (24 and 24A) transporting the oxidizer to the plurality of the oxidizer ejection ports (23). In the burner tip, the oxidizer transport paths (24 and 24A) comprise: first transport paths (241 and 241A) extending along the fuel ejection nozzle (22); and second transport paths (242 and 242A) extending radially inward from the distal end portion of the first transport paths (241 and 241A) to the tip bodies (21 and 21A), the second transport paths (242 and 242A) are arranged on a distal end portion surface (213A) side of the tip bodies (21 and 21A) with respect to a rear end (BE) of the oxidizer ejection port (23).SELECTED DRAWING: Figure 6 【課題】炉内に面する先端部の高温化を抑制して破損を低減することが可能なバーナチップおよびそれを備えたバーナを提供する。【解決手段】ガス化炉のバーナ(1)の先端部に配置され、チップ本体(21,21A)と、ガス化炉に燃料を噴出する燃料噴出ノズル(22)と、ガス化炉に酸化剤を噴出する複数の酸化剤噴出孔(23)と、複数の酸化剤噴出孔(23)に酸化剤を搬送する酸化剤搬送路(24,24A)と、を備えるバーナチップ(2,2A)において、酸化剤搬送路(24,24A)は、燃料噴出ノズル(22)に沿って延びる第1搬送路(241,241A)と、第1搬送路(241,241A)の先端からチップ本体(21,21A)の径方向内側に延びる第2搬送路(242,242A)と、を有し、第2搬送路(242,242A)は、酸化剤噴出孔(23)の後端(BE)よりもチップ本体(21,21A)の先端面(213A)側に設けられている。【選択図】図6