Rapid preparation process of inert dispersion fuel pellet

Abstract

The invention discloses a rapid preparation process of an inert dispersion fuel pellet. The rapid preparation process comprises the five steps of preparation of mixed material slurry, preparation of core-shell structure particles, core pressing, core-shell pressing and preparation forming. The preparation process overcomes the shortcomings of an existing inert dispersion fuel pellet preparation method, and the inert dispersion fuel pellet high in TRISO particle content, good in particle integrity, uniform in dispersion and high in silicon carbide matrix compactness can be obtained within a shorter process period. In the prepared inert dispersion fuel pellet, the silicon carbide matrix compactness is up to 92% or above, and the volume fraction content of TRISO particles in whole fuel is 30%-45%.

Description

technical field

[0001] The invention relates to a preparation method of nuclear fuel, in particular to a rapid preparation process of inert-based dispersed fuel pellets. Background technique

[0002] With the rapid development of the industrial level, my country's energy consumption has also shown rapid growth. At present, my country's electricity consumption of the whole society ranks first in the world, and its total power scale ranks first in the world. However, the heavy dependence on thermal power generation has caused my country to face major challenges in reducing greenhouse gas emissions and ensuring sustainable energy supply. Since coal combustion produces a large amount of carbon dioxide, greenhouse gases and dust, the power industry has become the largest source of carbon dioxide emissions in my country. In recent years, frequent large-scale smog has occurred in my country, seriously endangering the ecological environment and the health of the people. In the fu...

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