A glove box for dry post-processing

Abstract

The invention belongs to the technical field of nuclear fuel post processing, and discloses a glove box for dry method post processing. The glove box is mainly composed of a main box, a sub box, an atmosphere control device, a waste transfer device, aerosol filters and an automatic pressure control device, wherein the sub box and the waste transfer device are located on the two sides of the main box respectively, the sub box and the main box are connected in a sealing mode, and a sealing door is arranged between the two boxes. The main box and the sub box can be communicated or separated respectively by opening or closing the sealing door. Two or more glove holes are formed in the front side of the main box. The aerosol filters are installed inside and outside the main box and located on the upper portion of an air inlet, the lower portion of an air outlet and the lower portion of an air exhaust port respectively. By the adoption of the glove box, an inert atmosphere can be controlled, inert gas can be made to circulate in the glove box, radioactive aerosols can be efficiently filtered, and the requirements for a low water content and a low oxygen content can be met.

Description

technical field [0001] The invention belongs to the technical field of nuclear fuel reprocessing, and in particular relates to a glove box for dry reprocessing. Background technique [0002] Nuclear fuel reprocessing includes dry reprocessing and water reprocessing. The operation process often needs to be carried out in a glove box. The current industrialized water reprocessing technology uses an aqueous solution as its research system and an atmospheric atmosphere as its working environment. The gloves used The boxes are glove boxes with a slightly negative pressure atmosphere. In order to reduce the accumulation of radioactive aerosols in the glove box, it is generally achieved by continuously replacing the gas in the box. Therefore, its most important design index is the number of air changes. The dry post-processing research system is a high-temperature molten salt system, which mainly involves the high-temperature operation of highly chemically active uranium and plu...

AI Technical Summary

Problems solved by technology

However, the water and oxygen content in the atmosphere obtained by these two methods are generally higher than hundreds of ppm, which is difficult to meet the requirements of high recovery rate of uranium and plutonium

Among them, method one uses continuous ventilation, which wastes a lot of argon, takes away a lot of heat in the box, and increases the amount of radioactive waste gas; although method two adopts sealing measures, it lacks the purification of water, oxygen and radioactive aerosols in a sealed environment The device requires frequent ventilation to effectively reduce the radioactive aerosol in the glove box

In addition, glove boxes with continuous and frequent air changes are not suitable for dry reprocessing experiments involving radioactive material powder or fine particle manipulation

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