초록 ▼

A method and apparatus for fluidized bed construction in which the fluidized bed is confined in an annular combustion chamber and fuel is injected into the lower portion of the fluidized bed by a centrally located whirling disk having vanes thereon for impelling the fuel and secondary air laterally

A method and apparatus for fluidized bed construction in which the fluidized bed is confined in an annular combustion chamber and fuel is injected into the lower portion of the fluidized bed by a centrally located whirling disk having vanes thereon for impelling the fuel and secondary air laterally outwardly. Primary air is provided from a blower jointly driven with the fuel distribution disk and supplying air under pressure to pass upwardly through air supply openings in a grate forming the bottom wall of the combustion chamber, with the jets of air passing through the openings having upward and tangential components of movement so as to impart rotary motion to the fluidized bed in the annular combustion chamber.

대표청구항 ▼

A fluidized bed combustion apparatus, comprising wall means defining an annular combustion chamber having a substantially vertical axis and a coaxially extending central opening, grate means extending horizontally across the lower end of said combustion chamber and formed with a plurality of air sup

A fluidized bed combustion apparatus, comprising wall means defining an annular combustion chamber having a substantially vertical axis and a coaxially extending central opening, grate means extending horizontally across the lower end of said combustion chamber and formed with a plurality of air supply openings therethrough, disk means mounted for rotation above said grate means about an axis coincident with said vertical axis of said combustion chamber, a bed of non-combustable particulate material in said combustion chamber above said grate means, air supply means formed for forcing air under pressure upwardly through said openings in said grate means to fluidize said bed, drive means operatively connected to and formed for rotating said disk means, and fuel feed means at said central opening in said wall means formed for depositing fuel on said disk means whereby rotation of the latter centrifugally distributes said fuel into said annular combustion chamber above said grate means.