| 摘要 |
PURPOSE:To perform thermal decomposition and gasification and residue combustion stably and continuously by dividing fluidized beds to 4 pieces of zones and circulating a heat medium between these in a thermally decomposing and gasifying device for solid or slurrylike inflammable materials. CONSTITUTION:A cylindrical vessel 1 is divided to 4 pieces of zones by a partition plate 2 and an inside cylinder 3. Combustible materials are fed through a feed port 8 continuously into a zone 7, where they are fluidized at high temps., and are dispersed and mixed with the heat medium circulating in the zone 7 13 15 7 and the fluidized gas through a feed port 6. They are gasified by quick thermal decomposition and the gas is removed through an exhaust port 9. The remained residues are burned by the fluidized gas through a feed port 4 in the zone 15, and while the heat thereof is being transmitted to the zone 7, the waste gas is separately exhausted. Since in this way the heat energy necessary for thermal decomposition is supplemented by the residue combustion, the gasification is accomplished stably. |
