| 摘要 |
PROBLEM TO BE SOLVED: To provide a combustion device capable of efficiently combusting even fuel hard to be burnt.SOLUTION: A boiler device 1 is configured such that an intake device performs suction from a bottom surface of a combustion chamber 3, thereby supplying combustion air to bamboo chips filled into the combustion chamber 3 to burn the bamboo chips. In the boiler device 1, a hollow conical projecting member 33 having a side surface formed into a slope 33a by a tapered shape is provided on a fire grate 31 on the bottom surface of the combustion chamber 3. In the projecting member 33, vent holes 33b are formed only on a lower part of the slope 33a, and air by suction of the intake device pass through the vent holes 33b. Also, a peripheral wall 32 of the combustion chamber 3 has vent holes 32, and the vent holes 32 are formed on a position higher than the position the vent holes 33b of the projecting member 33 are formed. |
