Machines for dismantling decommissioned nuclear reactors

Details Machines for dismantling decommissioned nuclear reactors Machines for dismantling decommissioned nuclear reactors

G - Physics

21

C

359/27

G21C 19/32 (2006.01) B23P 19/00 (2006.01)

Patent

CA 1223983

Abstract Title: Machines for dismantling decommissioned nuclear reactors A machine for dismantling, unloading and transferring to a disposal facility, nuclear reactor structure and/or components, which have been irradiated during operation of the reactor. The machine includes in one example a gantry (12) mounted on a rigid, undismantled part of the reactor such as rails (10) on the refuelling level (9) of the reactor, a carriage (14) angularly movable on the gantry, a platform (141) movable linearly on the carriage, a mast (16) on and axially movable relative to the platform, a manipulator (17) mounted on the mast for angular and linear movement relative thereto, a variety of tools (18) selectively mountable on the manipulator for effecting dismantling of reactor structure and/or components, and hoist means (26) movable along a beam (21) rotable about the reactor centre line and alignable with other beams (23, 24) to allow transfer of the hoist means from one beam to another. Alternative arrangements for varying the elevation of the mast are also disclosed.

478533

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