| 摘要 |
A semi automatic coke drum deheader device (22) for use on a coke drum where in the coke drum includes an upper opening (7), a flange (6) surrounding the upper opening (7) and a first vessel cover (2) releasably attached to the flange (6). The deheader device (22) comprises a frame (34a) attached to the coke drum, a bridge (1) for supporting the first vessel cover (2) and a seco nd vessel cover (4), a central shaft (13) having a distal end (13a). A lift assembly is attached to the frame (34a) for engaging the thrust collar (37) to selectively raise and lower the bridge (1) relative to the flange (6), and a rotational assembly is operatively connected to the central shaft (13) for rotating the bridge (1) to selectively align the first vessel cover (2) or t he second vessel cover (4) above the flange (6) during the delayed coking proce ss.
|
