Global Patent Index - EP 0159492 A3

EP 0159492 A3 19870114 - PROCESS AND FIRING EQUIPMENT FOR REDUCING THE GENERATION OF NOX IN COAL DUST FURNACES, PARTICULARLY SLAG TAP FURNACES

Title (en)

PROCESS AND FIRING EQUIPMENT FOR REDUCING THE GENERATION OF NOX IN COAL DUST FURNACES, PARTICULARLY SLAG TAP FURNACES

Publication

EP 0159492 A3 19870114 (DE)

Application

EP 85102314 A 19850301

Priority

DE 3410945 A 19840324

Abstract (en)

[origin: EP0159492A2] In a process for reducing the generation of NOx in coal dust furnaces, in which an additional fuel is supplied via nozzles (8) to the flue gas flow downstream of the main combustion zone and residual air is supplied via nozzles (14) downstream of the supply of the additional fuel, the additional fuel and the residual air, in order to achieve a better mixing of fuel and air into the flue gas flow, are supplied to the flue gas uniformly distributed over the cross-section of the flue gas flow. In a preferred embodiment of the firing equipment, it is envisaged that a fuel supply grid (7) with hollow rods (7a) extends transversely to the flue gas flow, which rods are provided on their upper side with fuel nozzles (8), and that, above the fuel supply grid (7), a residual air supply grid (13) with hollow rods (13a) extends, which rods are provided on their lateral surface with air nozzles (14), and that the ends of the hollow rods are connected to an additional fuel source (11) and a residual air source (17) respectively. <IMAGE>

IPC 1-7

F23C 6/04; F23C 9/00; F23G 7/06

IPC 8 full level

F23C 6/04 (2006.01)

CPC (source: EP)

F23C 6/047 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0159492 A2 19851030; EP 0159492 A3 19870114; DE 3410945 A1 19851003

DOCDB simple family (application)

EP 85102314 A 19850301; DE 3410945 A 19840324