Combustion gas from the incinerator is fed into the quencher through a downcomer tube and is instantaneously cooled to approximately 90°C using water. After cooling using water and saturation with water vapor, combustion gas is exhausted from the quencher. In the quencher, when the combustion gas passes through the water, most of the dust and molten salts are captured and dissolved in the water
(1)Instantaneous cooling eliminates the possibility of the recomposition (de novo reactions) of dioxins.
(2)The downcomer tube is protected by a water curtain without hot spots.
(3)Molten salts are dissolved in the water in the quencher without causing steam explosions.
(4)A simple structure allows for easy maintenance.