| 摘要 |
<p>A composting plant has open or closed layers of composting materials with inlets and outlets for process air. The composting materials are conditioned with air introduced by a mixer valve(s) (6). Air is introduced to the mixer valves (6) by preferably four air pipes (2, 3, 4, 5) supplying air of different quality. One air inlet (2) supplies fresh ambient air using a blower (10). A second air inlet (3) delivers dry air which is heated by warmth drawn through heat exchangers (11, 12) located within the composting material, and fed through the blower (10). A third inlet (4) delivers heated air drawn through a heat exchanger (14) and blower (16). A fourth air inlet (5) delivers recirculated effluent air via a blower (15).</p> |
