silo 3 - U.S. Department of Energy

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Access and Retrieval Strategy for the Silo 3 Project
Document No. 40430-PL-0002, Rev. 1
September 2003
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Vacuum wand - 4" diameter x 5' long aluminum tube sections (including a wand
end effector section), with camlock fittings for addition of wand tube sections as
pneumatic retrieval progresses deeper into the silo;
Vacuum hose, to convey material from vacuum wand to PRS Collector, DCL-10-
5002. The hose is corrugated (smooth interior surface), with a grounding wire
embedded into the hose. Continuity checks can be conducted on the hose to test
for wear areas caused by friction of the material;
Motorized Hoist, secured on Silo 3 Enclosure roof trusses above each man way,
used to assist operator in lifting, lowering, and maneuvering the vacuum wand and
hose;
Hose cradle, with rollers, used in conjunction with hoist to support vacuum hose
(preventing excessive hose bending) and to assist operator in maneuvering the
vacuum wand and hose;
Clamp-on "steering wheel", attached to vacuum wand, and used to assist the
operator in maneuvering the vacuum wand;
"Bullet" camera, taped to vacuum wand end effector, with monitor provided locally
on silo dome and onwork platforms for operator viewing of vacuum wand retrieval
performance inside the silo;
Wooden platforms at five man ways (no platform at the center man way) to provide
operators with a level-working surface.
OTHER PRS EQUIPMENT
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DCL-10-5002, Pneumatic Retrieval Collector, is a baghouse-type material collector
used to separate the retrieved material from the associated air stream. Material and air
is conveyed from the VWMS vacuum wands, via flexible vacuum hose, to the
Pneumatic Retrieval Collector.
FLT-10-5005, Cartridge Filter, provides additional removal of material from the air
stream discharged from the Pneumatic Retrieval Collector.
FLT-10-5004, HEPAAILPA Filter, provides additional removal of any material remaining
in the air stream discharged from the Cartridge Filter.
BLR-10-5006, Pneumatic Retrieval Blower, produces the pneumatic air stream and
vacuum for the Pneumatic Retrieval System.
FDR-10-5 1 04, Pneumatic Retrieval Collector Discharge Feeder, is a variable-speed
screw feeder used to transfer material, at an operator-set rate, from the Pneumatic
Retrieval Collector toward the project packaging system.
ROF-10-5108, Primary Rotary Feeder, is used to provide an airlock between the high
vacuum in the upstream Pneumatic Retrieval Collector and the low vacuum in the
downstream Feed Conveyor and packaging system.
ROF-10-5 1 10, Secondary Rotary Feeder, is used in series with the Primary Rotary
Feeder to ensure an adequate airlock between the higher and lower vacuum systems.
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