EP 0756134 B1 20000628 - Method and burner for reducing the formation of NOx when burning pulverized coal
Title (en)
Method and burner for reducing the formation of NOx when burning pulverized coal
Title (de)
Verfahren und Brenner zur Verminderung der Bildung von NOx bei der Verbrennung von Kohlenstaub
Title (fr)
Procédé et brûleur pour la réduction de la production de NOx lors de la combustion de charbon pulvérisé
Publication
Application
Priority
DE 19527083 A 19950725
Abstract (en)
[origin: EP0756134A1] The burner involves connecting a primary dust pipe (6) to a dust pipe (7) and conveying a mixed flow of primary air and coal dust. The primary dust pipe is enclosed by a secondary and tertiary air pipes (10,11), both of which continue into a conically widening section. The pipes have a swirling appliance (22,23) and are connected to a spiral inlet housing (16,17). The outlet end of the primary dust pipe has a stabiliser ring (8), the primary dust pipe is enclosed by a primary gas pipe (9) forming a ring channel. A dust-free part-flow of the mixed current flows through the primary gas pipe. A part-flow rich in dust flows through the primary dust pipe. The dust pipe contains a swirl piece (24) downstream from which is an immersion pipe (25) connected to the primary gas pipe by an outward leading pipe (26) via a spiral inlet housing.
IPC 1-7
IPC 8 full level
F23C 99/00 (2006.01); F23D 1/00 (2006.01); F23D 1/02 (2006.01); F23D 17/00 (2006.01)
CPC (source: EP US)
F23D 1/00 (2013.01 - EP US); F23D 1/02 (2013.01 - EP US); F23D 17/005 (2013.01 - EP US); F23C 2201/20 (2013.01 - EP US); F23C 2202/10 (2013.01 - EP US); F23D 2201/20 (2013.01 - EP US)
Designated contracting state (EPC)
DE DK ES FI FR GB NL
DOCDB simple family (publication)
EP 0756134 A1 19970129; EP 0756134 B1 20000628; AU 5461196 A 19970130; AU 727761 B2 20001221; CA 2175113 A1 19970126; CN 1152686 A 19970625; DE 19527083 A1 19970130; DE 59605487 D1 20000803; DK 0756134 T3 20001106; ES 2149402 T3 20001101; JP H0942611 A 19970214; PL 181172 B1 20010629; PL 314866 A1 19970203; RU 2147708 C1 20000420; UA 45963 C2 20020515; US 5832847 A 19981110; US 5979342 A 19991109; ZA 963667 B 19961120
DOCDB simple family (application)
EP 96106401 A 19960424; AU 5461196 A 19960530; CA 2175113 A 19960426; CN 96109931 A 19960722; DE 19527083 A 19950725; DE 59605487 T 19960424; DK 96106401 T 19960424; ES 96106401 T 19960424; JP 17746496 A 19960618; PL 31486696 A 19960619; RU 96109202 A 19960516; UA 96072777 A 19960710; US 13484598 A 19980814; US 66607796 A 19960619; ZA 963667 A 19960509