Ash handling and treatment in solid fuel burners
AssigneeSalinas Energy Limited
InventorPaul D Williams
Life of this patent
Estimating the term…
Abstract
A solid fuel gasifier includes first wall structure (12) defining a gasification chamber (14) and means (50, 52) to collect particulate solid residue from gasification in the gasification chamber. Second wall structure (16) defines a gas combustion chamber (17) and means (19) is arranged for admitting a flow of hot gases from the gasification chamber to the gas combustion chamber as combustion takes place. Also provided is means (178, 170) to conduct hot gases from the gasification chamber and/or gas combustion chamber into thermal contact with said collected particulate solid residue, for facilitating post-combustion and/or post-reduction of the solid residue. Also disclosed are an agitator bed (52, 182) for fine particulate material, and a method of gasification of solid fuel.
Claims19
A solid fuel gasifier including:
- first wall structure defining a gasification chamber;
- means to collect particulate solid residue from gasification in the gasification chamber;
- second wall structure defining a gas combustion chamber;
- means arranged for admitting a flow of hot gases from said gasification chamber to said gas combustion chamber as combustion takes place;
- and
- means to conduct hot gases from said gasification chamber and/or gas combustion chamber into thermal contact with said collected particulate solid residue, for facilitating post-combustion and/or post-reduction of the solid residue.
An agitator bed for fine particulate material, including:
- a base surface for supporting the particulate material;
- an array of agitator elements arranged adjacent to and dispersed over the base surface;
- and
- means to reciprocate or otherwise move said agitator elements through said material on said base surface for agitating the material to encourage post- combustion and/or post reduction, and for effecting a net conveyance of the material in a predetermined direction;
- wherein said agitator elements are shaped to present varying surface profiles to said material on said base surface that facilitate said net conveyance of the material in said predetermined direction.
Dependencies are inferred from the claim text.