| 摘要 |
Bio-mass fuel is fed on demand by gravity through top opening 16 past baffles 22 and 24 onto a grate 42 above which tubes 30 and 34 form an auxiliary grate. Combustion air is supplied by fan 44 and a supplementary burner 60 is used for pre-heating. Air from a fan 28 is fed via manifold 26a, tubes 30, manifold 32a, tubes 34, manifold 36a and pipe 38 to venturi 40. The heated air from the venturi 40 thus draws combustion products from the first combustion chamber and these are burnt at high temperature in the outlet tube 50 which leads to a second combustion chamber and may replace a conventional oil fuel burner. <IMAGE> |
