Patent ID: 8726818

Claim:
An apparatus for burning woody pellets, comprising: a porous plate which includes many holes; a fire bed which is formed by covering ceramic particles in a layer manner on the porous plate; fuel supply section which supplies woody pellets on the fire bed; air supply section which supplies combustion air to the fire bed from the holes of the porous plate; a firing burner which fires the woody pellets; a secondary combustion space which introduces combustion gas generated from the fire bed therein and burns the gas; and a stirring section which stirs the layer of the ceramic particles on the fire bed by using a member which moves along a plate surface of the porous plate, wherein the fire bed is formed by covering the ceramic particles in a layer manner in an area surrounded by a pair of side plates disposed vertically with respect to the porous plate and a front plate and a rear plate respectively disposed at both ends of the side plates, and the porous plate is supported so as to be movable in front and rear directions in a manner that a front end and a rear end thereof are respectively inserted into slits formed at the front plate and the rear plate, and the stirring section includes: a plurality of long holes each elongated in a vertical direction which are formed at each of the pair of the side plates of the fire bed in a manner that the long holes are formed with an interval in the front and rear direction of the side plates at corresponding opposed positions of the side plates; a plurality of stirring rods each of which is inserted in corresponding pair of the opposed long holes of the pair of the side plates; and a driving section which moves the porous plate in the front and rear directions.