| 摘要 |
PROBLEM TO BE SOLVED: To make waste gas harmless and discharge it by completely combusting rear gas and securely removing harmful gas even when combustion temperature is not raised in a front stage combustion furnace and hence harmful gas such as dioxin is produced. SOLUTION: A re-combustion furnace includes a waste gas introduction hole from another combustion equipment and a combustion gas exhaust outlet, and further includes an air supply hole connected with a combustion burner and a compressor on a furnace peripheral wall. A combustion flame injection hole 4a and an air injection hole 5a of the combustion burner are disposed, and those combustion flame injection hole 4a and air injection outlet 5a are located on the circumference of a circle oppositely to each other with a discharging direction disposed in the same peripheral direction. Waste gas introduced from another combustion equipment is turned and stirred in the furnace with the aid of a burner injection flamer and injection air, and further supplied with sufficient air for re-combustion. The re-combusted gas is discharged through the combustion gas exhaust outlet.
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