EP 0862019 B1 20030108 - Method and device for thermal treatment of fly ash from grate incinerators
Title (en)
Method and device for thermal treatment of fly ash from grate incinerators
Title (de)
Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen
Title (fr)
Procédé et dispositif pour le traitement thermique des cendres volantes des incinérateurs à grille
Publication
Application
Priority
EP 97810110 A 19970228
Abstract (en)
[origin: EP0862019A1] The process removes fly ash (10) and if appropriate, particles of grate end ash (19) entrained from waste incineration. The waste is burned on the grate (4) in a incinerator furnace (1). From this arises grate ash (19) and flue gases carrying fly ash (10). The incinerator (1) comprises primary (7) and secondary (8) combustion chambers. The flue gases are withdrawn for further treatment in the boiler (2) and the dust filtration plant (3) where precipitated fly ash is extracted. At least some of the fly ash is melted or sintered. Some the fly ash (10) is recycled back to the high temperature region of the combustion chamber. Here the maximum temperature exceeds the melting point or the sintering temperature of the fly ash. The residence time is sufficient that the ash becomes glassified or sintered. Also claimed is the corresponding plant for this process.
IPC 1-7
IPC 8 full level
F23G 7/00 (2006.01); F23G 5/00 (2006.01); F23G 5/16 (2006.01); F23G 5/32 (2006.01)
CPC (source: EP)
F23G 5/002 (2013.01); F23G 5/16 (2013.01); F23G 5/32 (2013.01); F23G 2202/104 (2013.01); F23G 2202/106 (2013.01); F23G 2209/30 (2013.01); F23J 2217/102 (2013.01)
Designated contracting state (EPC)
BE CH DE DK ES FI FR GB IT LI NL PT SE
DOCDB simple family (publication)
EP 0862019 A1 19980902; EP 0862019 B1 20030108; DE 59709100 D1 20030213; DK 0862019 T3 20030422; ES 2191163 T3 20030901; JP H10246416 A 19980914; NO 314673 B1 20030428; NO 980843 D0 19980227; NO 980843 L 19980831
DOCDB simple family (application)
EP 97810110 A 19970228; DE 59709100 T 19970228; DK 97810110 T 19970228; ES 97810110 T 19970228; JP 4502298 A 19980226; NO 980843 A 19980227