| 摘要 |
A burner capable of burning very small grade solid fuel (10) (up to 25% fines of 0.8 mm mesh size) in a controlled manner, on either a domestic or an industrial scale. The fire bottom is a water-jacketed metal plate (26). Primary combustion air passes through the apertures (30) in the water jacket (28) and plate (26). Cratering (34) and uneven burning of the fuel is avoided by a reciprocable member (50) in the throat (20) of a fuel hopper (12) supplying the fuel bed (22). The reciprocation stroke length (54) is controlled, in conjunction with the size of throat and the air supply, to an amount sufficient to compact the burning fuel without pushing it bodily down the fire bed, although an occasional longer stroke (58) is permitted to effect total fuel bed movement. |
