| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the method of operation enabling to stabilize the amount of generating steam and a Pb content in slug at low level by detecting the deviation of a heat level early and stabilizing the heat level of a furnace bottom quickly in the operation of a waste melting furnace. SOLUTION: In the method of blowing in fuel together with a room temperature oxygen enriched air or a high temperature air to a coke bed from the air blasting tuyere 10 of a waste melting furnace 1, the fuel blowing flow is controlled so as to keep a furnace top gas temperature within a predetermined range when the furnace top gas temperature exceeds a set temperature detecting the furnace top gas temperature, to keep theηCO within a predetermined range when theηCO exceeds a set value by measuring the density of CO (%) and CO2 (%) of the furnace top gas and calculatingηCO=CO2/(CO2+CO), and to keep the furnace top gas temperature andηCO within a predetermined range when the furnace top gas temperature and theηCO exceed a set up value.</p> |
