| 摘要 |
PURPOSE:To reduce an increased part of pressure loss, when pressure loss is generated in a main exhaust blower in reconstructing an existing firing installation, by providing a cyclone with a small diameter in parallel with a cyclone in a suspension preheater. CONSTITUTION:When increment of pressure loss exceeding capacity of an existing main exhaust blower by reconstructing an existing firing installation or enhancing capacity thereof, a cyclone 12 with a small diameter is newly provided to a cyclone 1 in an existing suspension preheater as well as an inlet of said cyclone 12 is connected to the cyclone 1 above a connecting part 10 of a chute 9 of a connecting duct 5 thereof by an inlet duct 13 and a gas outlet is connected to an exhaust duct 7 of the cyclone 1 by a gas outlet duct 14. By this method, pressure loss is reduced worth of increment in pressure loss and an existing installation is used availably. |
