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Title: Radioactive waste material melter apparatus

An apparatus for preparing metallic radioactive waste material for storage is disclosed. The radioactive waste material is placed in a radiation shielded enclosure. The waste material is then melted with a plasma torch and cast into a plurality of successive horizontal layers in a mold to form a radioactive ingot in the shape of a spent nuclear fuel rod storage canister. The apparatus comprises a radiation shielded enclosure having an opening adapted for receiving a conventional transfer cask within which radioactive waste material is transferred to the apparatus. A plasma torch is mounted within the enclosure. A mold is also received within the enclosure for receiving the melted waste material and cooling it to form an ingot. The enclosure is preferably constructed in at least two parts to enable easy transport of the apparatus from one nuclear site to another.
Authors:
 [1] ;  [1]
  1. (Richland, WA)
Publication Date:
OSTI Identifier:
867349
Report Number(s):
US 4919190
DOE Contract Number:
AC06-76RL01830
Resource Type:
Patent
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA
Country of Publication:
United States
Language:
English
Subject:
radioactive; waste; material; melter; apparatus; apparatus; preparing; metallic; radioactive; waste; material; storage; disclosed; radioactive; waste; material; placed; radiation; shielded; enclosure; waste; material; melted; plasma; torch; cast; plurality; successive; horizontal; layers; mold; form; radioactive; ingot; shape; spent; nuclear; fuel; rod; storage; canister; apparatus; comprises; radiation; shielded; enclosure; adapted; receiving; conventional; transfer; cask; radioactive; waste; material; transferred; apparatus; plasma; torch; mounted; enclosure; mold; received; enclosure; receiving; melted; waste; material; cooling; form; ingot; enclosure; preferably; constructed; enable; easy; transport; apparatus; nuclear; site; preferably constructed; preparing metal; radiation shield; radiation shield; apparatus comprises; waste material; waste material; waste material; waste material; waste material; waste material; nuclear fuel; spent nuclear; radioactive waste; radioactive waste; radioactive waste; radioactive waste; fuel rod; plasma torch; plasma torch; radiation shielded; radiation shielded; apparatus comprise; shielded enclosure; shielded enclosure; horizontal layers /164/373/376/