Waste incinerator flue gas recirculation

摘要

The invention relates to a method for the incineration of waste material in an incinerator, comprising:supplying waste material to an incineration zone which contains an incineration grid (5), wherein the waste material (6) is supplied to a first side of the incineration grid and is moved to a second side during the method,supplying from below through the incineration grid (5) and the waste material (6) placed thereon a primary gas so as to at least partially incinerate said waste material in a combustion area that stretches from the incineration grid to a first level above the incineration grid. This method is improved because the incineration zone comprises at least two zones, the waste material being supplied to a first zone, and wherein during the method the waste material is moved to a successive connected zone, and that a first partial primary gas (1-4) supply is supplied to the first zone with an oxygen content of 20% by volume and a temperature from 50°C to 450°C, preferably from 50°C to 300°C.