Importance

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Abstract

A whirl chamber boiler plant for generation of steam includes a combustion chamber in which the fuel is burned in a whirl within the chamber. The bottom of the chamber slopes downwardly towards an inlet through which combustion air is admitted into the chamber. Fuel and inert material are admitted into the chamber adjacent the bottom thereof. The inlet is of a size suitable for fluidizing the inert material within the chamber. Boiler tubes built within the chamber provide for removal of heat from the chamber. Preferably the inert material is a grain-shaped ash of the type produced by the burning of the fuel. In one embodiment of the present invention, a portion of the ash contained in the gases exiting from the chamber is returned to the chamber.

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First Claim