Abstract: In an incineration plant with combination air being fed to its furnace via a pipeline, a mixing chamber, an extractor and an air-preheating device are provided in the direction of flow of the combination air. Heated air is fed from the air-preheating device into the mixing chamber, so that the sucked-in incineration air and, in particular, the moist dust particles entrained by it are dried.

Abstract: In an incineration plant with incineration air being fed to its furnace (1) via a pipeline (9), a mixing chamber (12), an extractor (10) and an air-preheating device (11) are provided in the direction of flow (13) of the incineration air. Heated air is fed from the air-preheating device (11) into the mixing chamber (12), so that the sucked-in incineration air and, in particular, the moist dust particles entrained by it are dried.

Abstract: The furnace with liquid-cooled grate elements has an inflow and a return to these grate elements, the inflow and the return being connected to a condensation device open to the atmosphere. The inflow has arranged in it a U-shaped cooling-liquid seal, one leg of which has a liquid head which corresponds to an arbitrarily selected maximum pressure. The other, shorter leg is connected to a central distributor for the individual grate elements of the grate stages. The distance between the lowest point of the coolant flow of the lowest grate element and the upper point of the shorter leg corresponds to a selectable safety height amount which generates a pressure which counteracts the spread of steam bubbles occurring in the grate elements, so as to prevent a reversal in the direction of flow of the coolant.