Global Patent Index - EP 1047754 A1

EP 1047754 A1 2000-11-02 - METHOD FOR PROCESSING BOTTOM ASH OF INCINERATOR PLANTS

Title (en)

METHOD FOR PROCESSING BOTTOM ASH OF INCINERATOR PLANTS

Title (de)

VERFAHREN ZUM AUFARBEITEN VON BODENASCHEN AUS VERBRENNUNGSANLAGEN

Title (fr)

PROCEDE DE TRAITEMENT DE CENDRES DE FOND D'INSTALLATIONS DE COMBUSTION

Publication

EP 1047754 A1 (DE)

Application

EP 99950381 A

Priority

  • AT 9900251 W
  • AT 74598 U

Abstract (en)

[origin: WO0027952A1] The invention relates to a method for processing bottom ash of incinerator plants, notably of thermal power plants and industrial furnaces, such as blast furnaces, converters, glass tanks or refuse incinerators. According to said method the bottom ashes are transmitted to a fluid-bed gasifier (1), possibly together with fly ash. The fluid-bed gasifier (1) is subjected to hot air, oxygen and/or countercurrent steam and used as crushing chamber (6). The gases withdrawn from the crushing chamber (6) or the fluid-bed gasifier (1) are guided over heat exchangers (9, 11), filtered and at least partly condensed. In the heat exchangers (9, 11) feed water for producing the steam of the countercurrent crusher is heated and supplied to an evaporator (14) and a superheater. The gases of the fluid-bed gasifier (1) which remain after partial condensation are burned to evaporate the feed water.

IPC 1-7 (main, further and additional classification)

C10J 3/54

IPC 8 full level (invention and additional information)

C10J 3/54 (2006.01)

CPC (invention and additional information)

C10J 3/54 (2013.01); C10J 3/482 (2013.01); C10K 1/024 (2013.01); C10J 2300/1687 (2013.01); C10J 2300/1884 (2013.01); C10J 2300/1892 (2013.01)

Citation (search report)

See references of WO 0027952A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0027952 A1 20000518; AU 6318899 A 20000529; EP 1047754 A1 20001102

INPADOC legal status


2003-11-12 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030501

2000-11-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000831

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE