EP 0215210 B1 19890920 - PROCESS AND INSTALLATION FOR PREPARING BINDER-FREE HOT-BRIQUETS
Title (en)
PROCESS AND INSTALLATION FOR PREPARING BINDER-FREE HOT-BRIQUETS
Publication
Application
Priority
DE 3529084 A 19850814
Abstract (en)
[origin: ES2001223A6] The present invention relates to a process and apparatus for preparing binder-free hot briquettes for smelting purposes consisting of iron-containing pyrophorous finely divided solids. Before briquetting, the finely divided solids are blown-through by means of a rising oxidating heated gas flow and held in a fluidized bed. During said process the gas flow is controlled in such a way that by oxidation of at least part of the metallic iron the temperature of the finely divided solids is increased to about 450 DEG to 650 DEG C. Subsequently, the solids are briquetted in hot condition. Characteristic for the invention is that there is added to the fluidized bed sensible heat from the outside until oxidation of part of the metallic iron starts, and that the fluidization bed is submitted to the effect of vibrations favoring the conveying of the solids over the fluidized bed.
IPC 1-7
IPC 8 full level
C22B 1/14 (2006.01); C22B 1/24 (2006.01); C22B 1/248 (2006.01)
CPC (source: EP US)
C22B 1/24 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
DE 3529084 C1 19861016; AT E46541 T1 19891015; BR 8603884 A 19870324; CA 1292621 C 19911203; CN 1009738 B 19900926; CN 86105313 A 19870211; DE 3665738 D1 19891026; EP 0215210 A1 19870325; EP 0215210 B1 19890920; ES 2001223 A6 19880501; JP H0258327 B2 19901207; JP S6240323 A 19870221; SU 1605927 A3 19901107; UA 7727 A1 19951226; US 4853031 A 19890801; US 4934665 A 19900619
DOCDB simple family (application)
DE 3529084 A 19850814; AT 86108912 T 19860701; BR 8603884 A 19860814; CA 515835 A 19860813; CN 86105313 A 19860813; DE 3665738 T 19860701; EP 86108912 A 19860701; ES 8601083 A 19860813; JP 18540086 A 19860808; SU 4027867 A 19860728; UA 4027867 A 19860728; US 34432489 A 19890425; US 88855186 A 19860718