| 摘要 |
PURPOSE:To realize recovery of sensible heat of slag by forming a casing of a screw conveyor with an evaporative pipe and making a screw shaft and a blade as a part of a boiler water circulating loop. CONSTITUTION:Boiler water is supplied by a boiler circulating pump 300 to each circulating loop of a screw conveyor 500 via an entrance header 400 and, after absorbing sensible heat of slag of high temperature in a screw conveyor, is gathered to an exit header 600 and then sent through a return pipe into a steam drum 200 for steam separation, and the steam is sent out of the system. On the other hand, saturated water is circulated to the screw conveyor along with supplied boiler water. High temperature slag is rotated and moved in the screw conveyor by means of a screw blade, and at the same time, sensible heat of said slag is absorbed by an evaporative pipe casing, screw shaft and a blade through radiation heat transfer and contact heat transfer. |
