Gel ball room temperature aging device
An aging device and gel ball technology, which is applied in the field of gel ball aging device at room temperature, can solve problems such as deformation and damage, and achieve the effects of convenient operation, avoiding cracking, and improving yield
Active Publication Date: 2020-03-27
TSINGHUA UNIV
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Problems solved by technology
Since the gel ball needs to be transported between the ammonia storage tank and the room temperature aging equipment, it is very easy to cause deformation or even damage
Method used
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[0023] In order to make the purpose, technical solutions and advantages of the invention clearer, the technical solutions in the invention will be clearly described below in conjunction with the accompanying drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of them. Example. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.
[0024] In the description of the present invention, unless otherwise specified, the orientation or positional relationship indicated by the terms "upper", "lower" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the system or element referred to must have a pa...
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The invention relates to the field of nuclear fuel aging devices, and provides a normal temperature aging device for gel spheres. The device comprises a feed pipeline, a self-circulating pipeline, a tank body and a filter screen arranged in the tank body; the inlet of the feed pipeline extends out of the tank body, the outlet of the feed pipeline extends to a position below the filter screen, andthe feed pipeline is provided with a feed valve; the tank body is provided with a liquid inlet, a liquid outlet, a self-circulating outlet, a self-circulating inlet, a constant-volume overflow port and a material outlet which can be opened or closed, the material outlet is arranged at the bottom of the tank body, the liquid outlet is positioned above the filter screen, and a liquid discharging pump is arranged on the liquid outlet; and the constant-volume overflow port, the self-circulating outlet and the self-circulating inlet are located below the filter screen, the self-circulating outlet is communicated with the self-circulating inlet through a self-circulating pipeline, and the self-circulating pipeline is provided with a self-circulating pump. The device avoids the deformation and damage of the gel spheres with ammonia water transport, and can drive the gel spheres in the tank body to circularly move by ammonia water self-circulation in order to avoid deformation and uneven reaction caused by the static stacking during ageing of the gel spheres.
Description
technical field [0001] The invention relates to the technical field of nuclear fuel aging equipment, in particular to a gel ball aging device at normal temperature. Background technique [0002] my country's pebble bed modular high-temperature gas-cooled reactor nuclear power plant (High Temperature Reactor-Pebblebed Modules, referred to as HTR-PM) usually uses the external gelation process improved from the full gelation process of the 10MW high-temperature gas-cooled reactor to prepare uranium dioxide when producing fuel. ceramic microspheres. [0003] Among them, the small balls after the dispersion process need to be aged at room temperature, aged at elevated temperature, washed, dried, roasted, reduced and sintered to obtain dense uranium dioxide ceramic microspheres. At present, in addition to the dispersion column system, the dispersion process also requires a special ammonia water storage tank to provide ammonia water for the dispersion column system. The gel balls ...
Claims
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IPC IPC(8): G21C21/02
CPCG21C21/02Y02E30/30
Inventor 赵兴宇马景陶郝少昌邓长生刘兵
Owner TSINGHUA UNIV