STOKER FURNACE

PROBLEM TO BE SOLVED: To provide a stoker furnace that enhances combustion efficiency of a soil fuel moving on a fire grate in a combustion furnace.SOLUTION: In a stoker furnace, a stationary fire grate 26b and a movable fire grate 26a partially mounted on the stationary fire grate 26b are alternately arranged; the movable fire grate 26a can oscillate along the upper surface of the stationary fire grate 26b; a solid fuel 12 is combusted while extruded on the stationary fire grate 26b and the movable fire grate 26a. When the height of the movable fire grate 26a is defined as H2, and the height of the solid fuel 12 moving on the movable fire grate 26a is defined as H1, the following relation is satisfied: H2>H1.SELECTED DRAWING: Figure 2 【課題】燃焼炉内の火格子上で移動する固体燃料の燃焼効率を高めるストーカ炉を提供する。【解決手段】固定火格子２６ｂと、前記固定火格子２６ｂ上に一部載置した可動火格子２６ａを交互に配置して前記固定火格子２６ｂの上面に沿って前記可動火格子２６ａを揺動可能とし、前記固定火格子２６ｂ及び前記可動火格子２６ａの上で固体燃料１２を押し出しながら燃焼するストーカ炉において、前記可動火格子２６ａの高さをＨ２とし、前記可動火格子２６ａの上を移動する前記固体燃料１２の高さをＨ１としたとき、Ｈ２＞Ｈ１の関係を満たすことを特徴としている。【選択図】図２