| 摘要 |
A burner for combustion of solid fuel is disclosed, comprising a rake (30) configured for feeding out ashes and unburned fuel that may accumulate on the bottom of a cassette (7) incorporated in the burner. The rake has a shield (31) adapted to the sectional shape of the cassette and which is supported in the end of a rod (32) which is movably supported in a housing and associated with a drive means (33) by which the rake can be driven in forward and backward movements along a bottom (11) of the cassette. The rake comprises a guiding member (34) arranged in vicinity of a rear side of the shield, the guiding member projecting for a portion outside the edge of the shield, at least outside the bottom edge (u) thereof, to contact the cassette bottom (11), wherein the guiding member comprises an elastic element (34A- D) arranged at such distance from the rear side of the shield that the elastic element is provided space enough to flex in the rake's direction of movement, both during the forward movement and during the backward movement as well, at least to a position wherein the edge of the elastic element is located substantially in alignment with the edge of the shield. |
