| 摘要 |
An individual key (32), a stoker (12) incorporating a plurality of the keys or a furnace incorporating the stoker (12) which includes a key apparatus (30) having a mounting surface (34) dimensioned and configured for sliding engagement with an associated arm (36), the mounting surface (34) is disposed on the bottom of the key (32), an upper face (44) receives associated fuel to be burned, a first side having a first contour, and a second side having a second different contour. The first contour and the second contour are dimensioned and configured for meshing engagement when a plurality of the identical keys (32) are arrayed in side abutting relationship. The first contour may include a first lip (44) and the second contour may include a second lip (46) and the first lip (44) may be disposed at a different elevation than the second lip (46). In some cases the entire extent of the first lip (44) is at a different elevation than the entire extent of the second lip (46). At least one of the lips (44) may include indentations to allow air flow for cooling and combustion. |
