Patent ID: 7111565

Claim:
A rotating grate for the combustion of slag producing combustibles, having a rotational-symmetrical shape having an axis of rotation which is inclined by an angle of inclination of more than 34° against a horizontal plane, and which encloses a combustion chamber which is closed at a lower end and is open at an upper end and has an inner grate surface which is delimited by hollow, meridionally extending carrier arms which each have a hollow space which is connected to a common compression air source, each said carrier arm being provided with blow openings directed into the combustion chamber, wherein a) the combustion chamber has one of a spherical shape and, in a borderline case, a cylindrical shape having a radially extending lower end side, b) the angle of inclination of the axis of rotation against the horizontal is between 36° and 46°, c) the carrier arms in the combustion chamber are flush with a remainder of the inner grate surface, and d) the combustion chamber has an inner contour which in an area of the closed lower end encloses an angle of about 90° with the axis of rotation.