| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To stably operate an electric melting furnace and a flue gas treatment device on the downstream side thereof at all times even if the produced amount of flue gas in the electric melting furnace is varied by the change of the supplied amount and physical property values of materials to be molten supplied to the electric melting furnace in an electric melting furnace facility for melting and treating city refuse and refuse incinerated residue. <P>SOLUTION: The melting treatment facility using the electric melting furnace comprises the electric melting furnace for melting and treating city refuse and refuse incinerated residue, a secondary combustion chamber for burning flue gas from the electric melting furnace, a flue gas cooling device for cooling flue gas from the secondary combustion chamber, a flue gas treatment device for purifying flue gas from the flue gas cooling device, and an induction ventilator installed on the downstream side of the flue gas treatment device. An air supply port is formed between the secondary combustion chamber and the flue gas cooling device, and a flow detector for flue gas discharged into the atmosphere is installed near the induction ventilator. An air amount for cooling supplied to the air supply port through a flow controller is regulated by the detection signals of the flow detector, and the amount of flue gas circulating in the flue gas treatment device is held at any set value. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
