Patent ID: 6379423
Filing Date: 2002-04-30
Classification: C21B

Abstract:
Device for producing sponge iron from lumps of iron oxide in a reduction shaft (1) by using a hot, dust-containing and carbon monoxide-rich reduction gas, comprising a gas generator wherein the reduction gas is generated by partial oxidation of solid carbon-containing materials and a reduction shaft (1) to which the reduction gas is supplied through several lateral reduction gas inlets (3) which are arranged at the same height around the circumference of said reduction shaft (1) at the lower end of the reduction zone, and the lumps of iron oxide are introduced into the reduction shaft (1) through a top area of the reduction shaft and discharged as sponge iron at a bottom end of the reduction shaft, characterized in that additional reduction gas inlets (15) at least one of said additional reduction gas inlets forming a downwardly open channel (11) which extends from the outside into a radially central area of the reduction shaft (1) are arranged below the plane of the lateral reduction gas inlets (3).