FLUIDIZED BED SYSTEM AND METHOD FOR OPERATING FLUIDIZED BED FURNACE

摘要

A fluidized bed system includes a first nozzle group that is provided inside a fluidized bed furnace, a second nozzle group that is provided inside the fluidized bed furnace, a first supply section that supplies a gas into the fluidized bed furnace through the first nozzle group, a second supply section that supplies the gas into the fluidized bed furnace through both the first and second nozzle groups, and a control section that controls the second supply section during a start-up operation to supply the gas into the fluidized bed furnace to form a fluidized bed of a fluid medium inside the fluidized bed furnace, and stops the supply of the gas by the second supply section and controls the first supply section during a normal operation to supply the gas into the fluidized bed furnace to form the fluidized bed of the fluid medium inside the fluidized bed furnace.

主权项

1. A fluidized bed system comprising:
a fluidized bed furnace that contains a fluid medium; a first nozzle group that is provided inside the fluidized bed furnace and constituted by one or a plurality of nozzles having holes for supplying a gas; a second nozzle group that is a nozzle group different from the first nozzle group, is provided inside the fluidized bed furnace, and is constituted by one or a plurality of nozzles having holes for supplying a gas; a first supply section that supplies the gas into the fluidized bed furnace through one of the first nozzle group and the second nozzle group; a second supply section that supplies the gas into the fluidized bed furnace through both the first nozzle group and the second nozzle group; and a control section that controls the second supply section during a start-up operation to supply the gas into the fluidized bed furnace to form a fluidized bed of the fluid medium inside the fluidized bed furnace, and stops the supply of the gas by the second supply section and controls the first supply section during a normal operation to supply the gas into the fluidized bed furnace to form the fluidized bed of the fluid medium inside the fluidized bed furnace.