| 摘要 |
<p>A steam drier including a rotatable elongated drum (1) and a set of heating elements (2) provided in the interior space within the drum and supported on the drum in order to rotate along with it. Each heating element (2) includes a pair of straight first longitudinal pipes (3, 4) supported in parallel to each other at a distance (A) from each other. The first longitudinal pipes extend in the longitudinal direction of the drum. A pair of end pipes (5, 6) extends substantially transversely relative to the first longitudinal pipes in the vicinity of the ends of the first longitudinal pipes. The end pipes connect the first longitudinal pipes rigidly to each other. The first longitudinal pipes are provided in flow connection to each other through the end pipes in order to allow the flow of steam within the heating element. The heating element (2) includes a set of straight second longitudinal pipes (7) provided in parallel to the first longitudinal pipes (3, 4). The second longitudinal pipes are fastened by each end to the end pipes (5, 6) so that each two adjacent second longitudinal pipes are disposed at a distance (B) from each other. The second longitudinal pipes (7) are provided in flow connection with the end pipes (5, 6).</p> |
