Global Patent Index - EP 0039909 A2

EP 0039909 A2 19811118 - Starved-air combustor.

Title (en)

Starved-air combustor.

Title (de)

Mit gedrosselter Luft arbeitende Verbrennungsanlage.

Title (fr)

Appareil de combustion à étouffement d'air.

Publication

EP 0039909 A2 19811118 (EN)

Application

EP 81103467 A 19810507

Priority

  • US 14836280 A 19800509
  • US 14837080 A 19800509
  • US 14837480 A 19800509
  • US 14849780 A 19800509

Abstract (en)

The present invention relates to a starved-air combustor of the type capable of consuming non-conventional fuels such as the byproducts of wood, pulp, and paper mills, and household and commercial refuse. Prior art starved-air combustors have not been entirely satisfactory in entirely consuming the combustible elements of the fuel at high throughput without producing air pollution. While the pollution problem can be solved to a degree by the utilization of scrubbers and other antipollution devices, such mechanisms are very expensive and their cost may militate against the use of alternative energy sources. The disclosed starved-air combustor includes a combustion chamber which is divided into a plurality of combustion chamber zones with separate overfire and underfire airflows being individually provided for each zone. Fuel is fed to the combustor in selectable constant weight batches and the supply of underfire air is proportional to the rate at which an auger rotates to convey the fuel through the combustor. Overfire air is supplied to each combustion zone in an inverse relationship to the variance of a sensed temperature within the zone from a predetermined temperature.

IPC 1-7

F23G 5/02; F23N 1/02; F23N 3/00

IPC 8 full level

F23G 5/16 (2006.01); F23G 5/50 (2006.01); F23N 1/02 (2006.01); F23N 3/00 (2006.01)

CPC (source: EP)

F23G 5/16 (2013.01); F23G 5/50 (2013.01); F23N 1/02 (2013.01); F23N 3/00 (2013.01); F23G 2202/101 (2013.01); F23G 2202/103 (2013.01); F23G 2203/8013 (2013.01); F23G 2207/101 (2013.01); F23G 2207/30 (2013.01); F23G 2900/55009 (2013.01)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0039909 A2 19811118; EP 0039909 A3 19820901

DOCDB simple family (application)

EP 81103467 A 19810507