CA1082140A - Shipping package system - Google Patents
Shipping package systemInfo
- Publication number
- CA1082140A CA1082140A CA298,841A CA298841A CA1082140A CA 1082140 A CA1082140 A CA 1082140A CA 298841 A CA298841 A CA 298841A CA 1082140 A CA1082140 A CA 1082140A
- Authority
- CA
- Canada
- Prior art keywords
- trays
- tray
- stacked
- contents
- stack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
- B65D71/0088—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
- B65D71/0092—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids
- B65D71/0096—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids the dimensions of the supports corresponding to the periphery of the load, e.g. pallets
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
- G21F5/008—Containers for fuel elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
- B65D2571/00012—Bundles surrounded by a film
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
- B65D2571/00043—Intermediate plates or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
- B65D2571/00067—Local maintaining elements, e.g. partial packaging, shrink packaging, shrink small bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
- B65D2571/00111—Arrangements of flexible binders
- B65D2571/00117—Arrangements of flexible binders with protecting or supporting elements arranged between binder and articles or materials, e.g. for preventing chafing of binder
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Buffer Packaging (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A packaging system for the safe transportation of pelleted nuclear fuel, which meets the test requirements for transportation of dangerous materials, comprises a series of load deformable polymer trays having troughs to receive nuclear fuel material laid horizontally therein in stacked pellet form, the trays being stacked to produce a self con-solidating effect, as the fuel pellets are impressed into the troughs of the trays under self loading. Each tray is pro-tected by a plastic wrap which seals and protects the contents having a sponge rubber overlay provided thereon, permitting a large number of trays to be stacked on a pallet, with a rigid cover and strapping applied, to provide protective packaging weighting significantly less than the contents thereof, and capable of withstanding very heavy loading without incurring damage to the contents, so that the pallets may be safely stacked to a considerable height.
A packaging system for the safe transportation of pelleted nuclear fuel, which meets the test requirements for transportation of dangerous materials, comprises a series of load deformable polymer trays having troughs to receive nuclear fuel material laid horizontally therein in stacked pellet form, the trays being stacked to produce a self con-solidating effect, as the fuel pellets are impressed into the troughs of the trays under self loading. Each tray is pro-tected by a plastic wrap which seals and protects the contents having a sponge rubber overlay provided thereon, permitting a large number of trays to be stacked on a pallet, with a rigid cover and strapping applied, to provide protective packaging weighting significantly less than the contents thereof, and capable of withstanding very heavy loading without incurring damage to the contents, so that the pallets may be safely stacked to a considerable height.
Description
Case 2588 ~8'~
This invention is directed to a packaging system for safe transportation of nuclear fuel, and in particular to a palletized system of stacked trays.
The safe shipment of nuclear fuel is governed by the requirements of the Department of Transport, (DOT), set forth in Safety Series #6 "Transportation of Dangerous Materials", and involves a series of rigorous tests which the packaging systems must survive without loss of the packaged contents.
Known prior shipping packages for the safe trans-portation of nuclear fuel have been characterized by heavy, rigid structures utilizing fibreglass reinforced resin trays, and a complex bolted crate assembly wherein the pellets are susceptible to damage, generally of a surface nature due to pellet localized motion and the hardness of the tray material, the packages being susceptible to damage under top loading, due to crushing of the lower most layers of fuel material, and being therefore limited in the extent of stacking, so that high density floor loading is not possible, leading to increased shipping and storage costs. This known arrangement is costly, and weighs about the same weight as the useful load contents of the package, so that the packing comprises approximately 50~ by weight of the package.
Certain of the elements of the present invention are to be found in regard to drill core trays, pallet loading sys- --tems, etc. as shown in Canadian Patents: 531,345 McBean, October 9, 1956; 643,181, Smith, June 19, 1962; 701,985 Glass, January 9, 1965; 878,905 Weiss, August 24, 1971;
836,357, Smith, March 28, 1972; 898,161, Guenard et al, April 18, 1972; 942,249, Kilroy, February 9, 1974; 963,857, Smith, March 4, 1975; 972,302, Lybbert et al. August 5, 1975;
In accordance with the present invention, there is . . . :
1~2~ Case 2588 provided a packaging system for the safe transportation of nuclear fuel material, having a rigid transport platform to receive a plurality of trays in stacked relation thereon, each tray being of fIexible polymeric material having a plurality of parallel troughs to receive fuel material in horizontally extending supported relation therein, a resilient impervious wrapper means enclosing each tray in sealing re-lation, a cushioning layer overlying each tray, a rigid stack cover to protect the top of the stack of trays, and strapping means to secure the stack and cover to the platform.
The trays of the preferred embodiment are of poly-ethylene, the wrapping means comprising heat sealable poly-ethylene film, and the interposed, cushioning layer being of open cell medium hardness neoprene sponge.
The weight of the subject system comprises approxi-mately 20% of the total loaded weight of the package.
The form of trough recess, and the resilience of the tray wrappers and the tray material is such that the application of vertical loading to a package produces self compaction, wherein the nuclear fuel material penetrates more deeply within the troughs of the individual trays, and suffers no damage.
In addition to successfully withstanding the rigors of the noted DOT test, particulars of which are summarized below, the subject packaging system possesses the characteris-tics of:
a) low weight b) low cost c) generally weatherproof d) preserves contents in excellent condition e) can be tiered six packages high f) suited for rapid packaging, inspection and unpacking - ,.
.
~8z~ case 2588 A further significant differentiation of the presently disclosed system over the prior art is its low mass, which in case of nuclear contamination, significantly reduces the amount of contaminated material to be disposed of.
It is further postulated that, due to the absence of relative movement between the fuel material and the con-tacting tray surfaces, the rate of contamination of the subject trays will be significantly lower, than for the known prior packages in which relative movement between contents and packaging is known to take place. Hence the useful service life, before unacceptable contamination occurs, will be extended.
The DOT tests, which the subject system has safely passed, proving to be "strong enough to prevent the loss of material during transport", comprised:
1) Water spray Test (for one hour, at 5 cms per hour)
This invention is directed to a packaging system for safe transportation of nuclear fuel, and in particular to a palletized system of stacked trays.
The safe shipment of nuclear fuel is governed by the requirements of the Department of Transport, (DOT), set forth in Safety Series #6 "Transportation of Dangerous Materials", and involves a series of rigorous tests which the packaging systems must survive without loss of the packaged contents.
Known prior shipping packages for the safe trans-portation of nuclear fuel have been characterized by heavy, rigid structures utilizing fibreglass reinforced resin trays, and a complex bolted crate assembly wherein the pellets are susceptible to damage, generally of a surface nature due to pellet localized motion and the hardness of the tray material, the packages being susceptible to damage under top loading, due to crushing of the lower most layers of fuel material, and being therefore limited in the extent of stacking, so that high density floor loading is not possible, leading to increased shipping and storage costs. This known arrangement is costly, and weighs about the same weight as the useful load contents of the package, so that the packing comprises approximately 50~ by weight of the package.
Certain of the elements of the present invention are to be found in regard to drill core trays, pallet loading sys- --tems, etc. as shown in Canadian Patents: 531,345 McBean, October 9, 1956; 643,181, Smith, June 19, 1962; 701,985 Glass, January 9, 1965; 878,905 Weiss, August 24, 1971;
836,357, Smith, March 28, 1972; 898,161, Guenard et al, April 18, 1972; 942,249, Kilroy, February 9, 1974; 963,857, Smith, March 4, 1975; 972,302, Lybbert et al. August 5, 1975;
In accordance with the present invention, there is . . . :
1~2~ Case 2588 provided a packaging system for the safe transportation of nuclear fuel material, having a rigid transport platform to receive a plurality of trays in stacked relation thereon, each tray being of fIexible polymeric material having a plurality of parallel troughs to receive fuel material in horizontally extending supported relation therein, a resilient impervious wrapper means enclosing each tray in sealing re-lation, a cushioning layer overlying each tray, a rigid stack cover to protect the top of the stack of trays, and strapping means to secure the stack and cover to the platform.
The trays of the preferred embodiment are of poly-ethylene, the wrapping means comprising heat sealable poly-ethylene film, and the interposed, cushioning layer being of open cell medium hardness neoprene sponge.
The weight of the subject system comprises approxi-mately 20% of the total loaded weight of the package.
The form of trough recess, and the resilience of the tray wrappers and the tray material is such that the application of vertical loading to a package produces self compaction, wherein the nuclear fuel material penetrates more deeply within the troughs of the individual trays, and suffers no damage.
In addition to successfully withstanding the rigors of the noted DOT test, particulars of which are summarized below, the subject packaging system possesses the characteris-tics of:
a) low weight b) low cost c) generally weatherproof d) preserves contents in excellent condition e) can be tiered six packages high f) suited for rapid packaging, inspection and unpacking - ,.
.
~8z~ case 2588 A further significant differentiation of the presently disclosed system over the prior art is its low mass, which in case of nuclear contamination, significantly reduces the amount of contaminated material to be disposed of.
It is further postulated that, due to the absence of relative movement between the fuel material and the con-tacting tray surfaces, the rate of contamination of the subject trays will be significantly lower, than for the known prior packages in which relative movement between contents and packaging is known to take place. Hence the useful service life, before unacceptable contamination occurs, will be extended.
The DOT tests, which the subject system has safely passed, proving to be "strong enough to prevent the loss of material during transport", comprised:
1) Water spray Test (for one hour, at 5 cms per hour)
2) Compression Test (under compressive load equal to five times load of filled package for period of 24 hours)
3) Penetration Test (drop of 6 Kg. projectile from one meter)
4) Free drop Test (drop package on one corner from height of 1-2 meters) Certain embodiments of the invention are described, reference being made to the accompanying drawings, where:
Figure 1 is a general view of a plurality of trays in bundled relation with a base and cover, in accordance with the presently disclosed system;
Figure 2 is a plan view of a tray;
Figure 3 is a view at 3-3 oE Fig.2, and Figure 4 is a view corresponding to Fig. 3 of an ' .
~ Case 2588 alternative tray section embodiment.
Referring to the drawings, the assembly 10 comprises a base structure 12 having a rigid wooden platform suitably constructed of 2" x 6" nominal size lumber with a 3/4" plywood top 14.
A plurality of tray assemblies 16 are arranged in tiered relation, there being two stacks of trays on the base 12.
While not evident in this view, a cushion overlay is superposed on each tray, in protective relation with the contents thereof.
A plywood cover 15 of 3/4" nominal thickness is used to protect the trays, and as a load transfer agent when the assemblies 10 are stacked as many as six high.
Referring to Fig. 2, each tray 20 has peripheral side and end walls 22, with a parallel series of longitudinal dividers 24 forming troughs (See Figs. 3 and 4) wherein the cylindrical pellets 26 are received.
A thin polymeric film 30 provides a snug fitting envelope to substantially hermetically seal the tray and its contents from atmospheric contamination, and to contain the pellets 26. In the described embodiment a 2-mil film is heat sealed and shrunk over the tray.
A foam rubber open cell mat 32 shown only in Fig.3, serves as a cushion overlay on the upper surface of the film 30, to protect and secure the fuel pellets, and to transfer point loading from the superposed tray or cover in a fashion to preclude damage of the pellets, while enabling the transmission of significant loads downwardly through the tray and its contents.
The mat 32 of low hardness open cell foam rubber is a nominal 1/4" thickness (approx~ 62 m.m) in the uncompressed condition.
Case 2588 4~
The illustrated strapping 40 can comprise metallic or plastic strapping. A 15 mil (o.ol5 inches) strapping of 3/4" width has been found to suffice, in eombination with cardboard eorner pieees 45.
It will be evident that the listed patents relating to drill eores may not be considered relevant, particularly where the present system aehieves a pellet rejeet loss of less than 1/2~.
- . '
Figure 1 is a general view of a plurality of trays in bundled relation with a base and cover, in accordance with the presently disclosed system;
Figure 2 is a plan view of a tray;
Figure 3 is a view at 3-3 oE Fig.2, and Figure 4 is a view corresponding to Fig. 3 of an ' .
~ Case 2588 alternative tray section embodiment.
Referring to the drawings, the assembly 10 comprises a base structure 12 having a rigid wooden platform suitably constructed of 2" x 6" nominal size lumber with a 3/4" plywood top 14.
A plurality of tray assemblies 16 are arranged in tiered relation, there being two stacks of trays on the base 12.
While not evident in this view, a cushion overlay is superposed on each tray, in protective relation with the contents thereof.
A plywood cover 15 of 3/4" nominal thickness is used to protect the trays, and as a load transfer agent when the assemblies 10 are stacked as many as six high.
Referring to Fig. 2, each tray 20 has peripheral side and end walls 22, with a parallel series of longitudinal dividers 24 forming troughs (See Figs. 3 and 4) wherein the cylindrical pellets 26 are received.
A thin polymeric film 30 provides a snug fitting envelope to substantially hermetically seal the tray and its contents from atmospheric contamination, and to contain the pellets 26. In the described embodiment a 2-mil film is heat sealed and shrunk over the tray.
A foam rubber open cell mat 32 shown only in Fig.3, serves as a cushion overlay on the upper surface of the film 30, to protect and secure the fuel pellets, and to transfer point loading from the superposed tray or cover in a fashion to preclude damage of the pellets, while enabling the transmission of significant loads downwardly through the tray and its contents.
The mat 32 of low hardness open cell foam rubber is a nominal 1/4" thickness (approx~ 62 m.m) in the uncompressed condition.
Case 2588 4~
The illustrated strapping 40 can comprise metallic or plastic strapping. A 15 mil (o.ol5 inches) strapping of 3/4" width has been found to suffice, in eombination with cardboard eorner pieees 45.
It will be evident that the listed patents relating to drill eores may not be considered relevant, particularly where the present system aehieves a pellet rejeet loss of less than 1/2~.
- . '
Claims (4)
1. A packaging system for the safe transportation of highly finished nuclear fuel material in pellet form, having a rigid transport platform to receive a plurality of trays in stacked relation thereon, each said tray being of load-deformable polymeric material, having a plurality of parallel troughs to receive a fuel material in horizontally extending supported relation thereon, resilient, impervious wrapper means enclosing each tray in sealing relation, a cushion overlay on each tray, a rigid stock cover to protect the top of the stack of trays, and strapping means to secure the stack and cover to the platform.
2. The system as claimed in claim 1 wherein the weight of packaging material comprises less than 25% of the total weight of the platform and loaded stack.
3. The system as claimed in claim 1, said trays being shaped in cross section to permit penetration of said pellets within said troughs, upon the application of load thereon, whereby said trays are self consolidating, to permit the application of a large load in supported non-damaging relation upon a said tray stack.
4. The system as claimed in claim 1 wherein said wrapper means comprises a heat sealable plastic sheet, said cushion overlay comprising a sponge rubber sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA298,841A CA1082140A (en) | 1978-03-10 | 1978-03-10 | Shipping package system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA298,841A CA1082140A (en) | 1978-03-10 | 1978-03-10 | Shipping package system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1082140A true CA1082140A (en) | 1980-07-22 |
Family
ID=4110979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA298,841A Expired CA1082140A (en) | 1978-03-10 | 1978-03-10 | Shipping package system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1082140A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0856469A2 (en) * | 1997-01-06 | 1998-08-05 | Mark O. Uitz | Collapsible container stackable when collapsed |
| CN107089425A (en) * | 2017-06-27 | 2017-08-25 | 烟台宝井钢材加工有限公司 | Steel plate sheet material automatic packaging method, packaging production line and packaging molding structure |
| CN108045751A (en) * | 2017-12-06 | 2018-05-18 | 常德金德新材料科技股份有限公司 | The packaging structure and packing method of a kind of composite paper |
-
1978
- 1978-03-10 CA CA298,841A patent/CA1082140A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0856469A2 (en) * | 1997-01-06 | 1998-08-05 | Mark O. Uitz | Collapsible container stackable when collapsed |
| EP0856469A3 (en) * | 1997-01-06 | 1999-04-21 | Mark O. Uitz | Collapsible container stackable when collapsed |
| CN107089425A (en) * | 2017-06-27 | 2017-08-25 | 烟台宝井钢材加工有限公司 | Steel plate sheet material automatic packaging method, packaging production line and packaging molding structure |
| CN108045751A (en) * | 2017-12-06 | 2018-05-18 | 常德金德新材料科技股份有限公司 | The packaging structure and packing method of a kind of composite paper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |