Wet process integrated device utilizing sol-gel method to prepare uranium dioxide cores

A sol-gel method and uranium dioxide technology, applied in the field of nuclear material processing, can solve nuclear material pollution and other problems, and achieve the effect of overcoming radioactive pollution

Inactive Publication Date: 2012-12-26
TSINGHUA UNIV
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[0018] The invention provides a sol-gel method for preparing uranium dioxide nuclear core wet-process integrated equipment, which is used to realize large-s

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  • Wet process integrated device utilizing sol-gel method to prepare uranium dioxide cores

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[0037] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] In the present invention, the sol-gel method for preparing uranium dioxide core wet-process integrated equipment refers to the integrated equipment formed by the various equipment included in the wet process in the process of sol-gel method for preparing uranium dioxide core, specifically including dissolving Tanks, glue tanks, pressure tanks and vibrating dispersion systems and dispersion injection systems.

[0039] figure 1 Shown is a schematic diagram of the composition of the sol-gel method for preparing uranium dioxide core wet-process integrated equipment in the embodiment of the present invention. Such as figure 1 As shown, the sol-gel method in the embodi...

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Abstract

The invention belongs to the technical field of nuclear material processing, and discloses a wet process integrated device utilizing a sol-gel method to prepare uranium dioxide cores. The wet process integrated device utilizing the sol-gel method to prepare the uranium dioxide cores comprises a dissolving tank, a glue boiling tank, a pressure tank, a vibration dispersing system and a dispersing injection system, wherein the dissolving tank, the glue boiling tank, the pressure tank and the vibration dispersing system are sequentially communicated through a first pipeline which is provided with valves. The outlet of the vibration dispersing system is connected with the inlet of the dispersing injection system in sealed mode, and pumps are installed on the dissolving tank, the glue boiling tank and a part of the first pipeline, wherein the part of the first pipeline is communicated between the glue boiling tank and the pressure tank. By means of the fact that a continuous sealed production line is formed among all units of the wet process integrated device, the wet process integrated device utilizing the sol-gel method to prepare the uranium dioxide cores achieves mass production of the uranium dioxide cores, and resolves the problem of radioactive pollution of nuclear materials during a production process.

Description

technical field [0001] The invention relates to the technical field of nuclear material processing, in particular to a wet-process integrated equipment for preparing uranium dioxide cores by a sol-gel method. Background technique [0002] The process of preparing ceramic microspheres by sol-gel method is applied to the preparation of uranium dioxide cores for spherical fuel elements of high temperature gas-cooled reactors. The uranium dioxide fuel core requires high density, high strength and good sphericity. [0003] The preparation of uranium dioxide core by sol-gel method mainly has the following steps: [0004] 1. Dissolve, triuranium octaoxide (U 3 o 8 ) powder is dissolved in nitric acid, and configured into a uranyl nitrate solution with a certain concentration of uranium atoms; [0005] 2. To boil the glue, add urea to the uranyl nitrate solution according to a certain metering ratio, evaporate and concentrate at a certain temperature for a certain period of time...

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Application Information

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IPC IPC(8): C01G43/025
Inventor 郝少昌赵兴宇马景陶邓长生王阳周湘文梁彤翔郭文利刘兵唐亚平
Owner TSINGHUA UNIV
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