S. Shielding Doors (INSTITUTE OF PHYSICS, BHUBANESWER)
M. S. Shielding sliding type doors of 150mm thick installed for
Radioactive Raise Preventive area. The doors shall be complete with
wheel drive mechanism on the rail with drive motors, trailing power
cable etc. Security latch and locks, inter locking, Guide roll /
bearing with supporting structure for preventing toppling all as
per technical specification and requirement of Health Physics Division.
The door shall have at least 15cm of overlapping on the three side
of door opening when shielding door is in close possition.
Level Radioactive Cell Waste Transportation System
The LL Product transportation system (LLPTS) assembly which will
be used for removing product drums from a low level radioactive
cell, transporting them to storage site and unloading the same in
trench in shielded manner. Mainly consists of three modules viz.
Lifting module, Transportation unit and loading /unloading platforms.
The transportation unit is basically a bottom loading cask and houses
a rugged idle roller conveyor segment to accommodate and handling
of four product drums. The unit has to be positioned over loading
platform for loading the drums onto the conveyor. Loading platform
is positioned over the product removal port permanently and has
provision for drives for cask and its own door, their travel limit
sensors and guides for locating the transportation unit. Unloading
platform at disposal site is similar to the above. Lifting module
consists of an electric chain hoist for drum hoisting and lowering,
a pneumatic hose real through which air can be supplied to
the pneumatic grapple, and lifting structure. Sensors for hoist
limits are mounted on this pannel will be plugged to lifting and
loading modules during operation, Bottom cask door and a shielding
sliding door on loading/unloading platform are opened together by
a pneumatic cylinder.