FIXED QUANTITY SUPPLY DEVICE FOR POWDER/GRANULAR MATERIAL

PROBLEM TO BE SOLVED: To surely supply a fixed quantity of powder/granular material by providing an elastic plate unit, positioning its tip end part in a fixed quantity delivery chamber of a rotary unit, in a discharge port side of a casing. SOLUTION: Powder granular material of flying ash or the like input in a casing 4 via a hopper 21 is rotated in a prescribed direction by a rotary shaft unit 5. Here, the powder/granular material is introduced into a fixed quantity delivery chamber 5 from a part without providing a cover unit 8, that is, an opening part 14, to be moved to an opposite side and discharged downward by each fixed quantity from a discharge port 3. In a part of the discharge port 3, that is, in a discharging cover unit 11, a wiper member 12 formed of rubber plate is protrusively provided toward a side of a fixed quantity delivery chamber 6, further a tip end part of the wiper member is positioned in the fixed quantity delivery chamber 6. Consequently, at each rotating of the fixed quantity delivery chamber 6, by energetically colliding against a side of the fixed quantity delivery chamber 6 in the downward side from the fixed quantity delivery chamber in the upward side, in the wiper member 12, even in the case that, for instance, the flying ash, containing water, adheres to a side of a rotary unit 7, the flying ash can be dropped down by impact force of the wiper member.