| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drying device which recovers a part of waste heat exhausted to the outside of a drying chamber together with an atmosphere that contains moisture in the drying chamber to use as a heat source for preheating drying air, can reduce the consumption of a fuel for heating the drying air to a necessary temperature, and can decrease the discharge of a greenhouse gas to contribute to the suppress of global warming. <P>SOLUTION: The drying device includes: the drying chamber (1); a natural lighting part (11) for letting a solar light in; a drying bed (4) for accommodating a material to be dried; an exhaust fan (13) for exhausting the atmosphere in the drying chamber (1) to the outside of the drying chamber (1); an outside air introduction device (2) for introducing the air in the outside of the drying chamber (1) to the inside of the drying chamber (1); an exhaust heat recovery pipe (21) for preheating air by the heat exchange between the air introduced by the outside air introduction device (2) and the waste heat in the atmosphere in the drying chamber (1); and an air heating device (3) for heating the preheated air to the temperature necessary to dry the material to be dried and sending it to the drying bed (4). <P>COPYRIGHT: (C)2012,JPO&INPIT |
