device for smeltugnar with a huvudrum and a sidorum for pumping material 45 from the grand room to the side room

摘要

The smelting furnace has a main chamber to which is connected a side chamber via a wall aperture. Connected to both chambers is a pump chamber (21) for moving smelt between them,, and containing equipment (36-49) for cyclic variation of its pressure. The pump chamber also contains a flow limiter (25) controlled by a float (50-52) and sensors