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Container for packaging nuclear waste with force-fitted lid

A container and solid waste technology, applied in the direction of portable protective containers, caps, pressure vessels, etc., can solve the problems of deterioration, damage, and impact on long-term storage safety, and achieve the effect of ensuring safety

Active Publication Date: 2011-05-04
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 invention relates to a container that comprises a side wall (2) having end edges (3, 4) each provided with a blocking member (5, 6), wherein at least one of the latter is inserted for closing an opening. The peripheral outline (6c) of the inserted blocking member (6) and the inner outline (4a) of the end edge (4) associated with the side wall (2) have generally complementary shapes on at least a portion of the respective heights thereof, so that the inserted blocking member (6) can be fitted, on at least a portion of the height thereof, into the space defined by said end edge (4) of the side wall (2), and can bear on said end edge (4) by adjusting lugs (11) in recesses (10) having a complementary shape. The inclined joining walls define an angle of between 20 DEG and 40 DEG relative to the container axis.

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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IPC IPC(8): G21F5/12B65F1/16F16J13/12
CPCG21F5/12B65D41/026B65D41/10B65D41/16F16J13/12
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
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