B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/55
B01D 33/06 (2006.01) B01D 33/80 (2006.01)
Patent
CA 1148871
K 03 RV-23P TRUNNION AND TRUNNION PACKING SLEEVE INSERT FOR ROTARY DRUM FILTER Abstract A rotary drum filter used to form and wash a pulp mat in the paper making process has a cylindrical filter drum with trunnions at its opposite ends mounting the drum for rotation about a central axis. One of the trunnions is hollow and is rotatably connected to an open end of a stationary vacuum pipe for draining filtrate from the drum during its rotation. Packing material provides a fluid seal at the rotatable connection between the vacuum pipe and the hollow trunnion. The hollow trunnion has an inner wall lined with a fiberglass reinforced plastic material. An outer end portion of the inner wall is recessed to pro- vide a seat for a packing sleeve insert made of an abrasion- resistant material. The inner surface of the packing sleeve insert provides a continuation of the lined inner surface of the hollow trunnion. An outer flange collar of the insert is threadedly fastened to an outer end surface of the hollow trunnion to hold the insert in place. When the packing sleeve insert wears out, it is removed from the trunnion and replaced with a new one.
349682
Gl&v / La Valley Industries Inc.
Oyen Wiggs Green & Mutala Llp
LandOfFree
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