Title:
METHOD FOR UTILIZING WASTE HEAT PRODUCED UPON CAST IRON BEING OUTPUTTED IN ROTARY FLAT FURNACE
Document Type and Number:
Japanese Patent JP3869751
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing high temperature vapor by combusting waste gas of low calory produced upon cast iron being outputted, and further for utilizing combustion gas from a vapor producer.
SOLUTION: Overheating is achieved by heat exchanging overheated vapor with process gas in many overheating stages, and the process gas is sucked into partial flows 6, 7 at a different temperature level. Gas temperature taken out depending on the quantity and/or the temperature of combustion air 3 is adjusted such that the temperature level of the first partial flow 6 sucked from a vaporizer among the overheating stages is adjusted for use in the process gas for performing preheat 8 to a coerce mineral, and that the temperature level of the second partial flow 7 sucked at an outlet of the vaporizer is adjusted for use in the process gas for drying coal.
Inventors:
Ulrich Nei
Wolfgang Stitchell
Dietrich Barthelt
Wolfgang Stitchell
Dietrich Barthelt
Application Number:
JP2002130419A
Publication Date:
January 17, 2007
Filing Date:
May 02, 2002
Export Citation:
Assignee:
ERVA Power Actien Gezershaft
International Classes:
F22G7/12; C21B13/00; F27D17/00; F01K3/14; F01K3/18; F22B1/18; F27B1/16; (IPC1-7): F27D17/00; F22G7/12
Attorney, Agent or Firm:
Mitsufumi Esaki
Tsuneo Mihara
Okumura Yoshimichi
Blacksmith
Tsuneo Mihara
Okumura Yoshimichi
Blacksmith