The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2001
Filed:
Jul. 27, 1999
Gerald Rosenfellner, Peter/Au, AT;
Abstract
A process and apparatus for producing iron briquettes and/or cold iron sponge, in which charge materials (,) which contain lumpy material containing iron oxide are introduced into the reduction zone (,) of a reduction reactor (,), then a hot reduction gas introduced in a feed zone below the reduction zone flows through the charge materials, which are reduced to hot iron sponge which passes through a gas feed zone (,), which is downstream of the reduction zone (,). Reduction gas is introduced into the reduction reactor (,). After the gas has flowed through the reduction zone (,), it is extracted from the reduction reactor (,) as a top gas. To produce cold iron sponge, hot iron sponge is cooled by cooling gas in a cooling zone (,) downstream of the gas feed zone (,) and the sponge is discharged from the reactor (,) through a product-discharge zone (,) downstream of the cooling zone (,). To produce iron briquettes, hot iron sponge is discharged from the reactor (,) in a removal zone (,), which is arranged between the gas feed zone (,) and the cooling zone (,), and the sponge is subjected to a briquetting operation (,). The invention make it possible to select whether to produce cold iron sponge and/or iron briquettes with the same reduction reactor.