| 摘要 |
<p>1,066,060. Reprocessing spent nuclear fuel. GESELLSCHAFT ZUR FÍRDERUNG DER FORSCHUNG AN DER EIDGENÍSSISCHEN TECHNISCHEN HOCHSCHULE. Dec. 11, 1963 [Dec. 12, 1962], No. 48981/63. Heading G6R. [Also in Division F4] A spent carbide-type nuclear fuel element 12 is burned to ash by heating in a combustion zone 11 in the presence of a combustionsupporting medium, e.g. oxygen or oxygenenriched air, supplied through pipe 27. Heating is effected by an electric induction coil 14 surrounding a ceramic wall 13. The coil 14 is formed of tubular material through which cooling water flows. Steel shell 16, 18, 19 is cooled by water coils 17, 20. The fuel element rests on a water-cooled grate 10 through which ash in the form of oxide drops into reservoir 26 and is recovered at 30 for chemical processing. Exhaust gas conduit 23 leads to electrostatic filter 24 incorporating a water-jet scrubber. The whole apparatus is screened against radioactive rays. Elements treated may consist of carbides of uranium, thorium, or plutonium encased in graphite.</p> |
