| 摘要 |
<p>In a stirring apparatus for sealed mounting on a vessel, in which apparatus a distance between a mounting flange (15) and drive elements of the stirring shaft (2) is bridged by a load-bearing intermediate housing (also called a lantern) (1+7, 50), at least a portion (1) of said housing, which portion supports the drive elements, is displaceable away from the vessel and toward it again by at least one hydraulic cylinder (3) for rendering possible the easy changing of wearing sealing elements for the stirring shaft (2) by using marketable auxiliary devices which may be attached or built in in a simple manner, standard gears too, and in a simple construction of the whole apparatus. Suitably, special guiding bolts (4) are provided for the movable portion (1) of the intermediate housing. If the latter is divided into a movable portion (1) and a portion (7) fixed to the vessel, the fixed portion (7) is used as the seal housing. If the seal is a stuffing box packing, the stirring shaft (2) bears a collar (8) below the sealing elements (5, 9, 17) and undercutting the latters; if the seal is a slide ring seal, a cage (27), which combines the wear subjected ring sealing elements into a unit (26), is mounted at a centering collar (6) of the movable portion (1) of the intermediate housing.</p> |
