| 摘要 |
A digested sludge drying apparatus with preheating equipment is provided to improve working efficiency, prevent direct combustion of digested sludge, and to remove ammoniacal bad smell components of exhaust gas. A digested sludge drying apparatus(10) with preheating equipment includes a drying part(100), an absorbing part, a heat exchanger(120), a heater(130) and a sub heater(140). The heat exchanger decrease heat of exhaust gas by heat-exchanging the exhaust gas of high temperature and circulating liquid, and increase the temperature of the exhaust gas. The heater heats the circulating liquid of the heat exchanger, and heats the exhaust gas between the absorbing part and the drying part. The absorbing part includes a filter part(112), a discharge part(114), and a circulating part(116). The filter part includes a microorganism filter dissolving ammonia.
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