SYSTEM FOR ENERGETICALLY VALOSIRING MUNICIPAL WASTES AND THE LIKE

摘要

Installation for fixing the energy value of urban waste and similar with a crushing mill (1) in which the refuse is sorted into a first flow of inert material containing little organic material and a second flow of inert material containing organic material or heavy combustible elements. This second flow is evacuated through a first exit. The installation also contains a circulating fluidized bed reactor (2) which received the crushed waste; a cyclone (11) for separating out solids which treats the gases from the reactor; a heat recovery unit (15) into which the gases pass from the cyclone and which contains a first heat exchanger assembly (18) and a dust extraction funnel into which are evacuated the solid particles via a second outlet; a second heat exchanger assembly (23) in a chamber (22) containing the gases, and a final treatment device for the gases in which the solids formed during treatment are extracted via a third outlet. The installation has an independent fusion and vitrification furnace (6) connected to each outlet by controlled connecting pipes.