Development of technologies for producing nuclear ceramic fuel

The impact of the modernization of the technological scheme for the production of fuel pellets on the quality indicators of the production of nuclear fuel is assessed. In the course of the work, an algorithm for loading, unloading and mixing duration of powder in a planetary screw mixer was worked out, which ensures high homogeneity of mixing. The introduction of a press with a tablet-laying machine into the technological process made it possible to increase the mass of the loaded compacts into the boats and reduce their injury rate, thereby increasing the productivity of the pressing operation. A set of works was implemented to increase the density of compacts, which made it possible to improve the appearance of the sintered tablets and, as a result, to increase the rate of «@good» yield for the sorting operation. The frequency of loading the tablets into the sintering furnace has been reduced, which contributed to an increase in furnace productivity and a decrease in energy consumption. AREVA has been successfully certified in accordance with the technical documentation used for the production of fuel pellets.

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