A Fluidized Column Type Uranium Dioxide Gel Ball Aging Washing System
A technology of uranium dioxide gel balls and fluidized columns, which is applied in the direction of uranium dioxide, uranium oxide/hydroxide, etc., can solve the problem that the UO2 gel ball production equipment cannot achieve the continuous operation of the aging washing process and cannot meet the The production requirements of the production scale of UO2 gel balls and other issues have achieved the effect of overcoming the bottleneck of production flux, small footprint and compact equipment.
Active Publication Date: 2017-10-17
TSINGHUA UNIV
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Problems solved by technology
[0006] The technical problem to be solved in the present invention is to solve the existing UO2 The continuous operation of the gel ball production equipment cannot reach the aging washing process, and cannot meet the production requirements of expanding the UO2 Gel ball production scale, so that the processing capacity of the aging washing process becomes A major bottleneck in large-scale production
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[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically conn...
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Abstract
The invention relates to the technical field of washing devices, in particular to a fluidization column type uranium dioxide gel ball ageing washing system which comprises a dispersion column, a distributor and a plurality of fluidization columns. The dispersion column disperses a batch of mixed materials of UO2 gel balls and an ammonia water mother solution at intervals of dispersing time periods, the distributor is provided with multiple distribution zones, a first discharging port of the dispersion column is connected with the distributor to put one batch of mixed materials into one non-occupied distribution zone for UO2 gel ball pre-ageing treatment, a second discharging port of the distributor is connected with the fluidization columns, and after the pre-ageing treatment of one batch of UO2 gel balls in the distribution zone is completed, the batch of mixed materials is put in one non-occupied fluidization column for UO2 gel ballageing and washing treatment. The fluidization column type uranium dioxide gel ball ageing washing system can achieve continuous feeding and discharging of two processes of ageing and washing treatment and make the whole process performed continuously.
Description
technical field [0001] The invention relates to the technical field of washing equipment, in particular to a fluidized column type uranium dioxide gel ball aging washing system. Background technique [0002] UO 2 The (uranium dioxide) core (diameter ~ 500 μm) is an important part of the spherical fuel element of the high temperature gas-cooled reactor. Currently, UO 2 The mainstream process adopted by the core is the sol-gel method. According to different gel principles, it can be divided into external gelation, internal gelation and full gelation process combining internal and external. Various gelation processes generally go through the steps of sol preparation, dispersion gelation into balls, aging, washing, drying, roasting, and reduction sintering. The aging and washing steps are located in the middle stage of the entire process. The advantages and disadvantages of the process Directly related to the quality of the gel ball. [0003] During the aging process, the am...
Claims
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IPC IPC(8): C01G43/025
CPCC01G43/025
Inventor 赵兴宇马景陶郝少昌邓长生刘兵
Owner TSINGHUA UNIV