PROCESS OF AGGLOMERATING SUBSTANCES CONTAINING IRON OXIDE IN A SINTERING MACHINE

摘要

A sintering mixture of iron-containing materials and solid fuel is sintered on a sintering machine; to reduce the quantity of waste gas in the production of a good sinter, a part of the waste gas is, after making-up to an oxygen content of at most 24% by addition of oxygen-richer gases, recycled as circulating gas, and the quantity of waste gas purged as residual gas is only that which corresponds to the gas formed during the sintering process plus the gas added for making up plus the false air which has entered from the outside minus the consumed oxygen.