Apparatus for the continuous treatment of fragmented fuel elemen

Details Apparatus for the continuous treatment of fragmented fuel elemen Apparatus for the continuous treatment of fragmented fuel elemen

1984-06-26

1987-01-13

Lacey, David L.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422159, 422268, 422287, 422304, 422903, 134 70, 134113, 134124, 134128, B01D 1102, B08B 308

Patent

active

046363629

ABSTRACT:
Apparatus for treating radioactive comminuted fuel elements with hot nitric acid comprising an endless conveyor which carries the fuel fragments through a U-shaped jacketed tube counter to the flow of acid. The conveyor travels in a conduit which connects to the ends of the U-shaped tube to form a continuous loop. Downstream of the U-shaped tube associated with the conduit is a washing unit, a drying unit, and a discharge unit. Upstream of the U-shaped tube is a feed unit which joins the conduit. A radioactive fission material sensor is located just ahead of the discharge unit and serves to actuate a switch to recycle treated fragments that may still be radioactive. Drive apparatus for the conveyor comprises permanent magnets mounted at spaced intervals on the conveyor and exciter windings surrounding said U-shaped tube to direct forward movement.

REFERENCES:
patent: 889120 (1908-05-01), Gormly
patent: 2512710 (1950-06-01), Beeson
patent: 2517143 (1950-08-01), Straight
patent: 3279890 (1966-10-01), Szasz et al.
patent: 3616978 (1971-11-01), Haslam
patent: 4435363 (1984-03-01), Boldt

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