METHOD FOR PRODUCING CERAMIC NUCLEAR FUEL TABLETS, DEVICE AND CONTAINER FOR CARRYING OUT SAID METHOD

The invention relates to nuclear engineering. The inventive method for producing ceramic nuclear fuel tablets consists in preparing, granulating and pressing a moulding powder and in sintering the thus obtained tablets. The preparation stage consisting in grinding and mixing is carried out by means of ferromagnetic needles (7) in a container (4) under magnetic field action. The inventive device for preparing the moulding powder comprises a protective chamber (12), a grinding and mixing unit embodied in the form of an inductor coil (10). A tube (9) which is made of a non-magnetic material and in which the container (4) is arranged is introduced into the inductor coil (10). Said device also comprises a powder granulation unit, a container conveying and positioning system provided with elements for vertically displacing (8, 13) and turning (14) said container. The protective chamber (12) is embodied in the form of a circuit in such a way that the container (4) is displaceable therein. Said container (4) is made of a non-magnetic material in the form of a cylinder and provided on the end surface thereof with a valve (6) which is connected to a cylindrical tank (21) by means of a flange joint (25a, 25b). The valve (6) has an internal cavity which is separated from the cylindrical tank by a transversal mesh partition (26) impenetrable for the ferromagnetic needles (7). Said invention is characterised in that it improves the powder mixing efficiency.