COMBUSTION APPARATUS

To suppress damage to a burner.SOLUTION: A combustion apparatus 130 includes an inner cylinder nozzle 173, an outer cylinder nozzle 171 which is provided outside the inner cylinder nozzle 173, a first fuel flow passage 177 which is formed between the inner cylinder nozzle 173 and the outer cylinder nozzle 171 and through which first fuel and conveying air flow, a burner 175 which is provided inside the inner cylinder nozzle 173, and an actuator 180 which moves the burner 175 between a first position intruding into a furnace 110 and a second position closer to an inner cylinder injection port 173a of the inner cylinder nozzle 173 than the first position.SELECTED DRAWING: Figure 1 【課題】バーナの損傷を抑制する。【解決手段】燃焼装置１３０は、内筒ノズル１７３と、内筒ノズル１７３の外側に設けられる外筒ノズル１７１と、内筒ノズル１７３と外筒ノズル１７１の間に形成され、第１燃料および搬送用空気を流通させる第１燃料流路１７７と、内筒ノズル１７３の内部に設けられるバーナ１７５と、バーナ１７５を、火炉１１０内に進入する第１位置と、第１位置よりも内筒ノズル１７３の内筒噴射口１７３ａ側の第２位置との間で移動させるアクチュエータ１８０と、を有する。【選択図】図１