Patent ID: 6189460
Filing Date: 2001-02-20
Classification: B01D,F23G,F23J,F23N,G01N,Y02A

Abstract:
A combustion system for sooty smoke generating facilities in which a post-treatment stage for combustion exhaust gas is provided closely adjacent an outlet of a combustion furnace and said combustion exhaust gas is emitted into the atmosphere after having passed through said post-treatment stage, said combustion system comprising:a first analyzer adapted to permit introduction of the combustion exhaust gas into said first analyzer from a spot adjacent the outlet of the combustion furnace and to composition-analyze said combustion exhaust gas,a second analyzer adapted to composition-analyze the combustion exhaust gas flowing from said post-treatment stage toward a chimney stack,a controller adapted to process an analytical signal provided from said first analyzer and to output a control signal based on said analytical signal,a neutralizer supplier adapted to, upon receipt of said control signal provided from said controller, supply said combustion furnace with neutralizers of predetermined types, andan operating condition readjuster adapted to, upon receipt of said control signal provided from said controller, change at least one of combustion temperature and combustion time period of the combustion furnace and turbulence condition during combustion so as to readjust the operating condition of said combustion furnace,wherein, based on said control signal, said neutralizer supplier supplies said combustion furnace with said neutralizers by quantities sufficient to neutralize the quantities of respective components contained in said combustion exhaust gas and said operating condition readjuster controllably readjusts the operating condition of said combustion furnace, andwherein said second analyzer monitors the composition of the combustion exhaust gas to be emitted into the atmosphere.