Patent ID: 6074456
Filing Date: 2000-06-13
Classification: C21B,C22B

Abstract:
A process of hot briquetting granular sponge iron, which comprises supplying granular sponge iron to a roller press at temperatures of 600 to 850.degree. C., molding it into hot briquets, and producing a strip structure of hot briquets, on which the briquets are arranged at a distance from each other, and then separating the hot briquets from the strip structure by smashing said structure, so that fragments of the strip structure are obtained, cooling the hot briquets and at least part of the fragments to temperatures in the range from 20 to 400.degree. C., and passing the cooled briquets and fragments through a rotary drum, to produce fine-grained fines of the briquets and fragments, and separating the fines from the briquets and fragments.