| 摘要 |
A multi-stage type drying apparatus is provided to minimize leakage of microwave by adjusting the speed of a conveyor belt of each stage of a transport part, and thus increasing loading capacity of an object. A multi-stage type drying apparatus comprises an object to-be-dried input part(20) injecting an object; a transport part(40) of multi-stage transferring the object to-be-dried, and is formed as a top and bottom multi-stage; a microwave generator(30) irradiating microwave to the transferred object and heating up the object; a hot blast supply part(50,50a,50b) drying an object by supplying hot blast; a discharge part(110) discharging an object heated and dried to the outdoor; and vent holes(60a,60b) installed to the utmost conveyor belt and the lowest conveyor belt of the transport.
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