Einrichtung zum Gießen von geschmolzenem radioaktiven Glas in einen Behälter

摘要

A method and device for enabling a molten radioactive glass to be cast from a crucible (2) situated in a top cell (1) and a container (4) situated beneath said crucible in a bottom cell (3), the radioactive glass flowing vertically downwards along a casting axis through an opening provided in a concrete slab (5) which separates said cells, said device being characterized in that it comprises the following components in succession going downwardly: a deformable guide tube (11) constituted by two housings (14, 15) slidably mounted in each other, with the inner walls (20, 21) thereof being frusto-conical in shape, and the apex of said frusto-conical shape being situated beneath said guide tube, the top housing (14) being fixed beneath said concrete slab, the bottom housing (15) having an end wall (22) in the form of a portion of a sphere, and said two housings being interconnected by a metal bellows (23); and a moving tube (12) constituted by an enclosure (32) whose inside wall extends downwardly so as to be capable of penetrating into the neck of the container (4), whose top face (34) is in the form of a frusto-conical surface suitable for co-operating with the spherically-shaped end wall (22) of the bottom housing (15), with the inner wall of the enclosure being pierced by holes (38), and with the outer wall of the enclosure including a pipe (37) connected to a suction system.