Engineering Design of a Mechanical Decladder for Spent Nuclear Rod-Cuts

Table 3

Design requirements of mechanical decladder.

Contents	Design requirements	Remarks
Capacities	(i) 4 m fuel rod/4 min (1 rod-cut/30 s); (ii) Process time of PWR 16 × 16 assembly: 15 h × 2 units; (iii) Rod-cut: 500 mm length	PWR (pressurized water reactor)
Extrusion method	(i) Cylinder drive: hydraulics; (ii) Cylinder quantity: double acting × 2 units	AC 220 V, 3 P
Blade	(i) Blade material: high-speed steel; (ii) Blade module quantity: 4 modules; (iii) Blade type: 3-CUT blade modules
Feeding and recovery	(i) Horizontal type; (ii) Rod-cut feeding: rack and pinion, autofeeding; (iii) Separation of hulls and fragments	37.5 kg HM-U/batch: 1 unit