Abstract
This technology grew out of the expanding social and environmental problems of municipal waste disposal, and particularly the pressing need to conserve the use of limited landfill spaces.
The technology comprises a method and apparatus for the stable and effective combustion of unshredded waste in a fluidizedbed incinerator primarily through the establishment of a thorough revolving motion of the bed material.As a result of the revolving flow this technology has realized the stable combustion and heat recovery or waste without the use of a crusher and permitted a wide range of inputs including municipal refuse plastics, waste oil, tyres, sewage sludge and lowgrade waste coal, even where such input includes an assortment of non-combustible material.
The application of this technology was first established in 1981 and is commonly referred to as TIF (Twin Interchanging Fluidizedbed) technology, indicating the two-sided through revolving action of bed material. Last year (1989) this type of furnace accounted for 60% of the fluidizedbed municipal solid waste incinerator capacity ordered in Japan and 100% of that capacity which was ordered without a crusher.
The special characteristics and functions of the revolving fluidized-bed incinerator were recognized and received inperial invention prize.
