CN104900287B - Indented well type disposal warehouse for disposing polyethylene high integral container - Google Patents

Abstract

The present invention discloses an indented well-type disposal repository for disposing polyethylene high-integral containers (HICs), comprising a repository body and a honeycomb body enclosed in the repository body and provided with a disposal well; the disposal well is a stepped indented structure that is larger at the top and smaller at the bottom; the indented well-type disposal repository for disposing polyethylene high-integral containers of the present invention can save floor space and realize safe, reliable, economical, and long-term stable disposal of HICs.

Description

Indented Well Repository for Disposal Polyethylene High Integral Containers

technical field

The invention belongs to the technical field of disposal of radioactive waste containers, and in particular relates to an indented well type disposal storehouse for disposing of high-integral polyethylene containers.

Background technique

Polyethylene High Integral Container (HIC) processing technology has been widely promoted and applied in nuclear power plants and low and intermediate radioactive waste disposal units in America, Europe, Asia and other regions in recent years. The surface dose rate of the HIC waste package is relatively high, and the waste package should be packed into a shielded container to meet the requirements of the relevant national standards during the transportation of the waste package. During the hoisting, transshipment and disposal stacking of HIC, the dose rate on the exposed HIC surface is high, and the disposal site operating unit needs to adopt remote operations and increase shielding to minimize the dose of operators. Therefore, when disposing of HIC, it is necessary to formulate a special disposal plan to solve the problems in the operation process such as hoisting and stacking. At present, there is no similar practical experience in engineering application in China.

Contents of the invention

In view of this, the object of the present invention is to provide an indented well type disposal warehouse for handling polyethylene high-integral containers, which can save floor space, facilitate the stacking operation of multi-layer HIC barrels and cover plates, and realize the safety and reliability of HIC , Economical and long-term stable disposal.

The indented well-type repository for disposing polyethylene high-integral containers of the present invention includes a repository body and a honeycomb body enclosed in the repository body and provided with a disposal well; Progressive structure;

Further, it also includes the cover plate placed at each shoulder in the disposal well and the upper end face of the disposal well;

Further, the thickness of the cover plate located on the upper end surface of the disposal well is greater than the thickness of the cover plate located inside the disposal well;

Further, the disposal wells are multiple and distributed in matrix;

Further, the honeycomb body is formed by pouring cement mortar; the cover plate is a prefabricated cement plate;

Further, the repository body includes a bottom plate, a side wall, a roof and a drain gallery.

The beneficial effects of the present invention are: the indented well type disposal storehouse for disposing polyethylene high-integral containers of the present invention can save floor space, enhance the structural stability of the warehouse, facilitate the stacking operation of multi-layer HIC barrels and cover plates, Realize the safe, reliable, economical and long-term stable disposal of HIC.

Description of drawings

Fig. 1 is a structural representation of the present invention;

FIG. 2 is a top view of FIG. 1 .

detailed description

Fig. 1 is a structural schematic diagram of the present invention; Fig. 2 is a top view of Fig. 1, as shown in the figure: the indented well-type repository for disposing of polyethylene high-integral containers in this embodiment includes a repository body and a repository body closed The honeycomb body 1 is provided with a disposal well 2; the disposal well 2 is a stepped indented structure with a large top and a small bottom; the above-ground well type is adopted for disposal, and the disposal well 2 is a multi-step structure. The distance between the lowest shoulder and the bottom surface of the honeycomb body 1, the distance between the uppermost shoulder in the disposal well 2 and the top surface of the honeycomb body 1, and the distance between any two adjacent shoulders in the same disposal well 2 The distance is not less than the height of HIC 3, so that multiple layers of HIC 3 can be placed in one disposal well 2, which can significantly reduce the footprint of the repository and improve the utilization rate of disposal space. The minimum inner diameter of the disposal well 2 matches the shape of the HIC barrel 3; Each shoulder in the disposal well 2 can be used as a supporting point for placing the cover plate 4 between the stacked HICs 3 , which creates conditions for mutual isolation between the HICs 3 and is beneficial to ensure long-term safety of disposal.

In this embodiment, it also includes the cover plate 4 placed at each shoulder in the disposal well 2 and the upper end surface of the disposal well 2. The interior of the disposal well 2 provides the necessary structural support for the cover plate 4, which can strengthen the structure of the HIC 3 disposal Stability, indented well structure, is conducive to the stacking of multi-layer HIC 3 and cover plate 4, ensuring the long-term safety of disposal.

In this embodiment, the thickness of the cover plate 4 located on the upper end surface of the disposal well 2 is greater than the thickness of the cover plate 4 located inside the disposal well 2, and the uppermost cover plate 4 is thickened, which can enhance the radiation shielding effect on the top of the repository and facilitate work. Personnel pour the roof when the repository is capped, and the roof is a part of the repository body.

In this embodiment, the disposal wells 2 are multiple and distributed in a matrix, the space utilization is reasonable, the disposal space utilization rate is improved, and the cost is reduced.

In this embodiment, the repository body includes a bottom plate 5, a side wall 6, a top plate 7 and a drain gallery 8'.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (5)

1. a kind of retraction well formula disposal storehouse for disposing the high overall container of polyethylene, it is characterised in that：Including disposal storehouse body and envelope Close in disposal storehouse body and be provided with the honeycomb ceramics of disposal well；The disposal well is up big and down small step-like indented style knot Structure；Also include the cover plate that at each shoulder and disposal well upper surface is positioned in disposal well.

2. the retraction well formula disposal storehouse of the high overall container of disposal polyethylene according to claim 1, it is characterised in that：It is located at The thickness of the cover plate of disposal well upper surface is more than the thickness for the cover plate being located inside disposal well.

3. the retraction well formula disposal storehouse of the high overall container of disposal polyethylene according to claim 1, it is characterised in that：It is described Disposal well is multiple and in matrix distribution.

4. the retraction well formula disposal storehouse of the high overall container of disposal polyethylene according to claim 1, it is characterised in that：It is described Honeycomb ceramics is poured by cement mortar and formed, and the cover plate is cement pre-fabricated panel.

5. the retraction well formula disposal storehouse of the high overall container of disposal polyethylene according to claim 1, it is characterised in that：It is described Disposing storehouse body includes bottom plate, side wall, top plate and draining piping lane.