ANORDNING FOR ATT UTTAGA JERNSVAMP FRAN UTVENDIGT VERMDA RETORTER INNEHALLANDE MALM

摘要

Means for withdrawing sponge iron from externally heated retorts whereby the sponge iron is withdrawn at the bottom of the retort including staggered inlet and outlet means and a minimum of three worm screw means moving at the same speed but in differing directions moving the sponge iron from the inlet to outlet means. The withdrawal means provides uniform descent of the sponge iron within the retort.