A method of decontaminating a freight container comprising the steps of: a) placing a freight container on a support; b) using an enclosure to substantially enclose the container on the support; and c) applying heat so that hot air moves within the enclosure around at least upright ends, sides and a
A method of decontaminating a freight container comprising the steps of: a) placing a freight container on a support; b) using an enclosure to substantially enclose the container on the support; and c) applying heat so that hot air moves within the enclosure around at least upright ends, sides and a roof of the container to kill or substantially weaken undesired life forms on or immediately adjacent to the exterior of the container.
대표청구항▼
1. A method of decontaminating a freight container comprising the steps of: a) placing a freight container on a support base wherein the support base provides a pressure accumulating conduit, the pressure accumulating conduit including a series of vents and an opening, the support base also provides
1. A method of decontaminating a freight container comprising the steps of: a) placing a freight container on a support base wherein the support base provides a pressure accumulating conduit, the pressure accumulating conduit including a series of vents and an opening, the support base also provides for an air gap beneath the container;b) using an enclosure to substantially enclose the container on the support; wherein the enclosure comprises a flexible roof and at least one flexible side andc) applying heat to an opening in the pressure accumulating conduit so that hot air moves through the pressure accumulating conduit and through the vents to distribute the air across the support base to the edges of the support base and upwards around the sides and a roof of the container, to kill or substantially weaken undesired life forms on or immediately adjacent to the exterior of the container. 2. A method according to claim 1, wherein the support is heated prior to step a). 3. A method according to claim 1, wherein the exterior of the container is exposed to the heat for sufficient time to allow the heat to conduct into the interior of the container to kill or substantially weaken undesired life forms if within the container. 4. A method according to claim 1, wherein decontamination chemicals are applied to the exterior of the container only, to the interior of the container only, or to the exterior and interior of the container, so that the combination of heat and chemicals is sufficient to kill undesired life forms. 5. A method according to claim 1, wherein water vapour is applied to the container so that the combination of heat and water vapour is sufficient to kill the undesired life forms. 6. A method according to claim 1, wherein the enclosure is an air impermeable flexible enclosure. 7. A method according to claim 1, wherein the container is an ISO container. 8. A method according to claim 1, wherein the container is a 40 foot long ISO container. 9. A method according to claim 1, wherein the container is a 20 foot long ISO container. 10. A method according to claim 1, wherein the container is subjected to the heat of approximately 30 minutes. 11. A method according to claim 1 further comprising the step of circulating a supplementary flow of hot air through openings in the enclosure. 12. A method according to claim 1 further comprising the step of providing an air supply pipe arranged to direct a flow of hot air into open doors of the container and providing hot air to the air supply pipe from the pressure accumulating conduit so as to decontaminate the inside of the chamber. 13. A method according to claim 1 further comprising the step of applying hot air at up to 200° C. 14. A method according to claim 13 further comprising the step of applying hot air between 75° C. and 175° C. 15. A method according to claim 13 further comprising the step of applying hot air between 80° C. and 150° C. 16. A method according to claim 1 further comprising the step of driving the hot air at up to 1000 m3/min. 17. A method according to claim 16 further comprising the step of driving the hot air at between 200 m3/min and 750 m3/min. 18. A method according to claim 16 further comprising the step of driving the hot air at between 250 m3/min and 500 m3/min. 19. A decontamination chamber suitable for use in the method of claim 1, the chamber having: a) a supportive base including a pressure accumulating conduit, the pressure accumulating conduit including a series of vents and open at one end to be able to receive hot air from a source of hot air through the open end;b) an enclosure comprising a flexible roof and at least one flexible side; andc) a hot air producing apparatus; the chamber formed such that when it is in use it is able to receive a 20 or 40 foot long ISO certified freight container on the base, the enclosure can cause the container to be enveloped, the means for producing hot air can cause a flow of hot air to the pressure accumulating conduit so that the container is heated to more than 50° C., and the at least one pressure accumulating conduit for channelling air can cause the air to move across the underside, the end and side walls and the roof of the container to kill undesirable life forms associated with the container. 20. A decontamination chamber according to claim 19, wherein the chamber comprises an arrangement of vents adapted to provide a curtain of hot air around peripheral parts of the base. 21. A decontamination chamber according to claim 19, wherein the base comprises a tray. 22. A decontamination chamber according to claim 19, where the enclosure comprises a flexible air impermeable curtain. 23. A decontamination chamber according to claim 19, wherein the enclosure comprises a support frame which can swing upwards to provide a support structure for the roof and front side of the enclosure. 24. A decontamination chamber according to claim 19, wherein the enclosure comprises rigid walls and a rigid rear side wall. 25. A decontamination chamber according to claim 19, wherein the hot air producing apparatus causes the container to be heated to more than: 55° C.;60° C.;65° C.;70° C.;75° C.;80° C.; or85° C. 26. A decontamination chamber according to claim 19, which is portable and/or mobile. 27. A decontamination chamber according to claim 21 wherein the tray comprises a floor, inwardly inclined sides, the pressure accumulating conduit and four upwardly extending legs. 28. A decontamination chamber according to claim 27 where the inwardly inclined sides of the tray direct air flow upwards. 29. A decontamination chamber according to claim 19 wherein the enclosure includes openings to allow a supplementary flow of hot air through the openings. 30. A decontamination chamber according to claim 19 further including an air supply pipe arranged to direct a flow of hot air from the conduit into open doors of the container to heat and thus decontaminate the inside of the container. 31. A method of decontaminating a freight container comprising the steps of: a) heating a support base;b) placing a freight container on a support base wherein the support base provides a pressure accumulating conduit, the pressure accumulating conduit including a series of vents, the support base also provides for an air gap beneath the container;c) using an enclosure to substantially enclose the container on the support base; wherein the enclosure comprises a flexible roof and at least one flexible side; andd) applying heat at a temperature between 80° C. and 150° C. and a rate of between 250 m3/min and 500 m3/min to an opening in the pressure accumulating conduit so that hot air moves through the pressure accumulating conduit and through the vents to distribute the air across the support base to the edges of the support base and upwards around the sides and a roof of the container, to kill or substantially weaken undesired life forms on or immediately adjacent to the exterior of the container;e) applying heat to openings in the enclosure to circulate a supplementary flow of hot air through the enclosure; andf) providing an air supply pipe arranged to direct a flow of hot air into open doors of the container and providing hot air to the air supply pipe from the pressure accumulating conduit so as to decontaminate the inside of the chamber.
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