A Fluidized-bed Gasification and Ash Melting Plant

摘要

A new fluidized-bed gasification and ash melting plant (140 t/24 hours, 3 sets) has been successfully installed at Asahi Clean Center, Kawaguchi City. The main features of this plant are: 1) Mixed combustion and melting of ash (into slag) from the other incineration plant, 2) Fly ash recirculation and milling treatment of incombustibles (resulting in reduction of landfill residue), and 3) Oxygen enrichment for low calorific waste combustion. Boiler steam is mainly used to drive a power generation turbine (Max. 12000 kW). The generated power is used within the facility and surplus power is sold to the local electric power company. The average treatment at this plant is 142 tons of waste/day/line and 11.4 tons of ash/day/line. Out of 8 300 kW of power generated 3 800 kW are sold to the local electric power company (in case of three lines operatinon).