EP 0498020 B1 19960717 - Method and system for handling exhaust gas in a boiler
Title (en)
Method and system for handling exhaust gas in a boiler
Title (de)
Verfahren und Anlage für die Behandlung von Abgas in einem Heizkessel
Title (fr)
Procédé et installation pour le traitement des gaz d'échappement dans une chaudière
Publication
Application
Priority
JP 20459189 A 19890809
Abstract (en)
[origin: EP0498020A1] In a coal-fired boiler (1), a heat recovery unit (2,3a) is located upstream of a dry electrostatic precipitator (4) so as to reduce the temperature of exhaust gas at the inlet of the dry electrostatic precipitator (4) and thus, prevent reverse ionization in the electrostatic precipitator (4). The heat recovery unit (2,3a) located upstream of the dry electrostatic precipitator will in no way by corroded even if the concentration of dust is reduced in the dry electrostatic precipitator (4). The desulfurization unit (5) does not require a cooling/dust removing section and eliminates the need for a wet electrostatic precipitator. The dry electrostatic precipitator (4) includes a gas passage divided into a plurality of parallel passages and dampers (15,16) operable to close the passages. This arrangement prevents dust from being dispersed as a result of hammering without charge. <IMAGE>
IPC 1-7
IPC 8 full level
B01D 53/50 (2006.01); B01D 53/77 (2006.01); B03C 3/01 (2006.01); B03C 3/014 (2006.01); B03C 3/019 (2006.01); B03C 3/74 (2006.01); F23J 15/00 (2006.01)
CPC (source: EP)
B03C 3/01 (2013.01); B03C 3/014 (2013.01); B03C 3/019 (2013.01); B03C 3/74 (2013.01); F23J 15/006 (2013.01); F23J 2215/20 (2013.01); F23J 2217/102 (2013.01); F23J 2219/60 (2013.01)
Designated contracting state (EPC)
DE DK GB IT
DOCDB simple family (publication)
EP 0498020 A1 19920812; EP 0498020 B1 19960717; CA 2036018 A1 19920809; CA 2036018 C 19980630; DE 69120927 D1 19960822; DE 69120927 T2 19961205; DK 0498020 T3 19961216; JP H0370907 A 19910326; JP H0756377 B2 19950614
DOCDB simple family (application)
EP 91101801 A 19910208; CA 2036018 A 19910208; DE 69120927 T 19910208; DK 91101801 T 19910208; JP 20459189 A 19890809