| 摘要 |
PURPOSE: A powdered fuel feeder is provided to secure optimal combustion efficiency by control residence time of second powered fuel in a furnace by moving a second fuel supply member. CONSTITUTION: A powdered fuel feeder(100) comprises a hollow pipe type first fuel supply member(110) and a multi-layered pipe type second fuel supply member(120). The fuel discharge port(121a) of the first fuel supply member is connected to the inner space of the furnace(10). First and second fuel feeders connect the first and second fuel supply sources and the furnace for supplying powdered fuel into the furnace. The second fuel feeder is composed of a second fuel supply pipe(121) and a cooling pipe(122). The fuel supply pipe supplies second powdered fuel into the furnace. The cooling pipe comprises a cooling water inlet port(123) and a cooling water outlet port(124) and covers the exterior of the second fuel supply pipe. |
