| 摘要 |
<p>Garbage and other incinerable waste is treated with hot air and steam in a rotary furnace (14), under conditions inhibiting free and complete combustion, so as to produce a gaseous phase and a solid phase consisting of non-combustible solids. The gaseous phase is mixed with excess air and recirculated combustion gases and passed to a cyclone chamber (40) in which further combustion takes place at a temperature controlled so as to destroy toxic organic compounds and to melt solids such as glass but insufficient to promote excessive nitrogen oxide formation. The gases are then passed through a ceramic heat exchanger (48), tempered with ambient air in a further cyclone chamber (50) to cause any residual molten glass still entrained in the gases to solidify, and passed through a second heat exchanger (54), clean compressed air being passed through the second and then the first heat exchanger so as to raise its temperature sufficiently to drive a gas turbine (61).</p> |
