UNIT FOR CRUSHING LONG-MEASURING RADIOACTIVE ELEMENTS Russian patent published in 2003 - IPC

FIELD: nuclear engineering; recovery of spent fuel at nuclear power stations or special integrated works. SUBSTANCE: unit that can be used for recovering spent long-measuring radioactive elements of fuel reactors, their control and protection systems, additional absorbers, fuel channels, and the like has its cutting mechanism rigidly fixed in support-turning protection wall for turning which is, essentially, slab with disk on upper end that mounts rigidly fixed turning gear and trunnion; Lower end has base with radial holes; housing bottom is provided with cylindrical guide that has through bore; through vertical bore and radial holes are made in upper part of housing. Slab of support-turning protection wall is provided with feeding slide-valve assembly disposed along axis of turn of support-turning wall; it is made in the form of insert with passages running to annular drillings which is secured in slab trunnion and set with clearance fit in housing-mounted perforated sleeve. Hydraulic station placed in cylindrical guide bore in housing bottom for turning is rigidly joined with support-turning wall slab base provided with feeding passages. EFFECT: enhanced capacity due to reduced tool replacement time; enhanced radiation safety of process. 3 cl, 13 dwg