Abfallschmelzofen

摘要

A rectangular type of refuse melting furnace (11) comprises a furnace body (12) with a rectangular horizontal cross section, a furnace cover (13) fixed on the top of the furnace body, and refuse heating elements (21) disposed vertically through the furnace cover, and characterized by having a hearth (12a) shaped into a reversed arch as viewed from the shorter sides of said furnace body. Arc discharging electrodes (21), electric resistance heating electrodes, or plasma torches, for example, may be used as refuse heating elements. The heating elements (21) are arranged along a longitudinal centerline of the furnace cover at predetermined intervals. Also, refuse inlets (22) are made through the furnace cover, and are located between the heating elements. One of the longer sides of the furnace body is provided with discharge ports (41) of molten slag (B), while one of the shorter sides of the furnace body is provided with a discharge port (42) of molten metal (A) which is located at a lower position than the discharge ports of molten slag.