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Remote-controlled mobile cleaning apparatus for removal and collection of high radioactive waste debris in hot-cell

  • US 6,625,843 B2
  • Filed: 05/24/2001
  • Issued: 09/30/2003
  • Est. Priority Date: 08/02/2000
  • Status: Expired due to Fees
First Claim
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1. A remote-controlled mobile cleaning apparatus for removing and collecting highly contaminated radioactive waste debris deposited on the hot-cell floor and the surface of spent nuclear fuel process and fabrication equipment located on said hot-cell floor where humans are inaccessible due to the high radiation level of spent nuclear fuel, comprising:

  • a navigation means provided at a lower portion of said apparatus for moving on a surface of said hot-cell floor;

    a suction and collection means connected with the navigation means for dislodging, sucking and collecting highly contaminated radioactive waste debris; and

    a cover part mounted on the top of the suction and collection means so as to cover and protect the suction and collection means, wherein said suction and collection means comprises;

    a primary suction unit to dislodge and suck radioactive waste debris adhered to the surface of the hot-cell floor;

    a flexible suction unit to clean up areas where the primary suction unit is inaccessible or the surface of the equipment located on the hot-cell floor;

    a primary collection unit to firstly filter and store radioactive waste debris sucked both by the primary suction unit and by the flexible suction unit;

    a secondary collection unit to filter and capture more fine radioactive waste debris filtered from the primary collection unit;

    a blower unit to generate a suction force for the suction and collection means; and

    a housing holding all of the above units, whereby each unit is separately constructed in modules and connected to each of said other units by first, second, third, and fourth feed pipes in sequence.

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