Title: Process and apparatus for producing sponge iron or pig iron
Application Number: 85108059 Application Date: 1985.10.12
Publication Number: 1000717 Publication Date: 1986.05.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C21B13/02
Applicant(s) Name: Korf Engineering GmbH Address:
Inventor(s) Name: Rolf Hauk
Attorney & Agent: YANG HOUCHANG
Abstract:
    The present invention discloses a process for producing sponge iron from iron ore, which is reduced to sponge iron in a reduction shaft furnace by means of a hot reduction gas. For this purpose reduction gas at a temperature in the range 750 to 900 DEG C. is introduced into shaft furnace(1) level with bustle plane(5) having been produced in a gasifier(2) then cooled and purified in a cyclone separator(12). Reduction gas is introduced below the bustle plane(5) at a temperature between 650 DEG and 750 DEG C. The present invention can increase carburization of the sponge iron is obtained, also can increase carbon separation through a volume increase, particularly by increasing the cross-section through the lower part of the shaft furnace.
Time: 3
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