COMBUSTION APPARATUS FOR UNBURNED FUEL

To provide a combustion apparatus for burning unburned fuel at low cost.SOLUTION: A combustion apparatus includes: a furnace body 10 that generates combustion exhaust gas B through combustion of fuel; an exhaust part 20 that is connected to the furnace body 10 and to which the combustion exhaust gas B flows in; a supply part 30 connected to the exhaust part 20 to supply self-combustion air A to the exhaust part 20; a regulating valve 45 that regulates a supply amount of the self-combustion air A to the combustion exhaust gas B; and a sensor 47 that detects a concentration of unburned fuel included in the combustion exhaust gas B. The regulating valve 45 burns the unburned fuel included in the combustion exhaust gas B through spontaneous combustion by regulating the supply amount of the self-combustion air A in accordance with the concentration of the unburned fuel detected by the sensor 47.SELECTED DRAWING: Figure 1 【課題】低コストで、未燃燃料を燃焼させる燃焼装置を提供する。【解決手段】燃料の燃焼によって燃焼排ガスＢを生成する炉体１０と、炉体１０に接続されて燃焼排ガスＢが流入する排気部２０と、排気部２０に接続されて排気部２０に自燃用空気Ａを供給する供給部３０と、燃焼排ガスＢに対する自燃用空気Ａの供給量を調整する調整弁４５と、燃焼排ガスＢに含まれる未燃燃料の濃度を検出するセンサ４７と、を備え、調整弁４５は、センサ４７によって検出された未燃燃料の濃度に応じて自燃用空気Ａの供給量を調整することによって、燃焼排ガスＢに含まれる未燃燃料を自然発火で燃焼させる。【選択図】図１