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Container for packaging nuclear waste with force-fitted lid

A technology for containers and solid waste, which is applied in the direction of portable protective containers, caps, pressure vessels, etc., can solve problems such as deterioration of conditions, affecting long-term storage safety, damage, etc., and achieve the effect of ensuring safety.

Active Publication Date: 2014-03-19
ORANO RECYCLAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pre-compression produces a compacted state that favors this result, but has the disadvantage that the compressed waste has a tendency to re-expand and exert considerable stress on the container and matrix
The situation is further aggravated by the release of gases from radiolysis that overpressure the vessel
Some gases are also corrosive and can cause damage, affecting long-term storage safety
Therefore, it is difficult to achieve the best possible effect that compression and compaction can provide, and a considerable void volume must be provided within the container to reduce internal stresses

Method used

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  • Container for packaging nuclear waste with force-fitted lid
  • Container for packaging nuclear waste with force-fitted lid
  • Container for packaging nuclear waste with force-fitted lid

Examples

Experimental program
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Embodiment Construction

[0036] figure 1 The illustrated container 1 is particularly suitable for waste materials which tend to increase or recover in volume over time. The container 1 is also particularly suitable for enclosing stacked compressed blocks of radioactive waste. Such as figure 1 As shown, the container 1 is generally in the shape of a cylindrical barrel. It comprises a cylindrical side wall 2 having two end edges, an upper end edge 3 and a lower end edge 4, each of which has a circular closing member 5 and 6, the lower closing member forming the bottom member, the upper The closure member forms a lid. Here, the bottom member 5 is fixed non-removably to the side wall 2, for example by welding or crimping. The cover member 6 is a built-in type. The cover member comprises two surfaces: an inner surface 6a and an outer surface 6b, connected by a peripheral profile 6c. The lid 6 closes the upper opening 7 ( figure 2 or visible in FIG. 4 ); as explained later, through this upper openin...

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PUM

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Abstract

The container is comprised of a side wall of which the end edges are each provided with a blocking member, of which at least one is inserted in order to close an opening. The peripheral outline of the inserted blocking member and the interior outline of the associated end edge of the side wall have generally complementary shapes on at least one portion of their respective heights, in such a way that said inserted blocking member comes to be housed on at least one portion of its height in the space defined by said end edge of the side wall and comes to bear against said end edge by adjusting lugs in recesses of complementary shape. The inclined joining surfaces form an angle from 20° to 40° with the axis of the container.

Description

technical field [0001] The present invention relates to containers packaged for storage or handling and methods of confining product within containers having force-fitted lids. [0002] This article relates to a container especially suitable for temporary or long-term storage of hazardous waste. The invention should be particularly described in the context of the original generation of solid nuclear waste, but the invention is not limited to this field and the nature of the waste or other products contained is generally not important. It is contemplated that the present invention finds particular application in hazardous products or any radioactive, explosive, toxic, etc. product. Background technique [0003] The nuclear industry has two main methods of storing waste. In the first method, the waste material is placed in metal drums and, after compression, poured into cylindrical metal containers with a cement-based matrix to ensure radioactive confinement. A lid with a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F5/12B65F1/16F16J13/12
CPCG21Y2002/303G21F5/12G21Y2002/206G21Y2004/30G21Y2002/60F16J13/12B65D41/026B65D41/10B65D41/16
Inventor 布鲁诺·科韦尔特蒂埃里·法夫雷让·埃里考特阿诺尔德·德尼奥帕斯卡尔·皮埃尔巴迪亚·阿梅克拉兹
Owner ORANO RECYCLAGE