| 摘要 |
<p>A circular air duct is continuously arranged in a whole circle and takes a gyration center of a trolley of a circular cooler as its center. The bottom of the circular air duct at a cooling area is provided with several air inlets of the circular air duct which are communicated with a plurality of air inlet branch pipes (5). The circular air duct is a passage between a circular flume (4) arranged in a whole circle and a door-shaped sealing device (3). The circular flume (4) at the cooling area comprises a bottom plate (41) of the flume, as well as an inner circular plate (44) of an air duct of the circular flume, an outer circular plate (45) of the air duct of the circular flume, an interior circular plate (42) of the flume and an exterior circular plate (43) of the flume fixed on the bottom plate (41) of the flume. The inner circular plate (44) of the air duct of the circular flume and the outer circular plate (45) of the air duct of the circular flume are positioned between the interior circular plate (42) of the flume and the exterior circular plate (43) of the flume. The circular flume (4) at a non-cooling area includes a bottom plate (41) of the flume, as well as an interior circular plate (42) of the flume and an exterior circular plate (43) of the flume fixed on the bottom plate (41) of the flume. End sealing bodies (1) of the circular air duct are provided at both ends of the non-cooling area. The circular air duct can ensure the effective sealing between the cooling area and the non-cooling area.</p> |
