IN-CORE STRUCTURE CUTTING APPARATUS

PROBLEM TO BE SOLVED: To provide a cutting apparatus for efficiently cutting and crushing an in-core structure with respect to a molten material of the in-core structure having an extremely hard portion formed by core meltdown under high temperature and high pressure conditions.SOLUTION: An in-core...

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Bibliographische Detailangaben
Hauptverfasser:	KUROSAWA KOICHI, SATO TOSHIHIRO, KIKUCHI KATSUYA, SUZUKI MITSUGI, HIRANO KATSUHIKO, OMORI SHINYA, YANAGIYA KATSUMI, MORINAKA TADASHI, CHIBA NOBORU, MIZUKAMI SHOJI, ISHIZUKA IPPEI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	DECONTAMINATION ARRANGEMENTS THEREFOR NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a cutting apparatus for efficiently cutting and crushing an in-core structure with respect to a molten material of the in-core structure having an extremely hard portion formed by core meltdown under high temperature and high pressure conditions.SOLUTION: An in-core structure cutting apparatus is composed of: an upper member 42 of the apparatus having a shielding function; a lower member 43 of the apparatus provided at a lower end part of the upper member of the apparatus and having rotation means; a rotation part 45 rotated by the rotation of the rotation means; and a cutter 44 and heating means 46 provided in a lower end part of the rotation part.SELECTED DRAWING: Figure 2 【課題】高温、高圧下での炉心溶融で形成された非常に硬い部分を有する炉内構造物の溶融物に対して効率よく炉内構造物を切断、破砕していく切削装置を提供する。【解決手段】遮蔽機能を有する装置上部部材４２と、前記装置上部部材の下端部に設けられ、回転手段を有する装置下部部材４３と、前記装置下部部材の下端であって、前記回転手段の回転により旋回運動する回転部４５と、前記回転部の下端部に設けられるカッター４４及び加熱手段４６により構成する。【選択図】図２