| 摘要 |
PROBLEM TO BE SOLVED: To provide a waste melting treatment method and a waste melting furnace capable of preventing defective melting of molten matters at a bottom portion and properly discharging the molten matters by reducing an inactive point near a tuyere. SOLUTION: In this waste melting furnace method wherein the waste is charged from a furnace upper portion, oxygen source is supplied from a furnace lower portion, ash components in the waste and non-burnt matter melted by reaction heat are discharged from a discharge hole of the bottom section, and a gas generated from the furnace upper portion is discharged, (1) the quantity of supplied air and quantity of supplied oxygen are determined to achieve combustion load (total quantity of supplied oxygen) per unit bottom sectional area, of 150Nm<SP>3</SP>/h/m<SP>2</SP>or more, (2) the quantity of supplied air and quantity of supplied oxygen are determined to achieve combustion load (total quantity of supplied oxygen) per unit bottom sectional area and one of unit tuyeres, of 20Nm<SP>3</SP>/h/m<SP>2</SP>/pieces or more, and (3) the quantity of supplied air and quantity of supplied oxygen are determined to achieve combustion load (total quantity of supplied oxygen) per unit tuyere-tuyere distance and one of unit tuyeres, of 50Nm<SP>3</SP>/h/m/pieces or more. COPYRIGHT: (C)2007,JPO&INPIT
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