JP4274980B2 - Container cargo inspection equipment - Google Patents

Description

  The present invention relates to a container cargo inspection device, and in particular, inspects by radiation from the outside of a container without unpacking cargo in a container unloaded from a ship or cargo loaded in a ship. Relates to a container cargo inspection device.

  In recent years, it has become increasingly common for import and export cargo contained in containers to hide social evil items such as firearms and drugs, and illegal items that are different from declarations. In the port where import / export cargo is handled to detect these goods, inspection of container cargo is important. As an inspection means, an X-ray inspection apparatus that is seen through X-rays from outside the container without unpacking the cargo in the container is convenient. For example, those described in Patent Document 1, Patent Document 2, and Patent Document 3 Are known. In the apparatus described in Patent Document 1, a rotary X-ray CT inspection apparatus is arranged in an inspection apparatus building tower, and a container is moved relative to the X-ray CT inspection apparatus. X-ray CT inspection.

Moreover, the apparatus described in patent document 2 carries out X-ray inspection of a container cargo by moving a portal crane in the longitudinal direction of a container so that a stationary container may be straddled.
Further, the apparatus described in Patent Document 3 arranges an X-ray apparatus in a shielding room, and allows X-ray inspection of container cargo by passing a vehicle carrying a container through the X-ray inspection apparatus. ing.

On the other hand, it is important to improve the efficiency of container handling work from a ship using this type of quay crane in order to reduce the number of days the ship is anchored. For this reason, various highly efficient quay cranes have been developed and put into practical use.
JP-A-8-261958 JP 2000-514183 A JP 2003-287507 A

  However, for example, with regard to imported containers, the above-described inspection system of the container cargo inspection device is not necessarily sufficient for containers that are unloaded from a ship one after another by highly efficient quay cranes.

  For example, in the apparatus described in Patent Document 1, it is necessary to move the unloaded container into the inspection apparatus building tower once, which takes time for inspection and also costs for construction of the building. Further, even in the apparatus described in Patent Document 2, the container after unloading is placed in the container yard, and after that, the inside of the container is inspected. Moreover, in the apparatus described in Patent Document 3, the container unloaded from the quay crane is delivered to the container transport vehicle, and the transport vehicle is put in the building for inspection, so that the luggage can be put into a container yard or the like. You can save time and effort, but you have to build a building, which is expensive. Moreover, since it is an inspection for each transport vehicle, there is a risk that the driver will be exposed to an explosion if the driver is on the transport vehicle.

  For the reasons described above, it is difficult to inspect all containers that are unloaded from a ship with a conventional inspection device, and inspection is performed by picking up a part of the containers that are substantially unloaded. I have to adopt a system.

Therefore, it is considered effective to improve the inspection efficiency of the container by inspecting the container at the lower part of the quay crane where the container is unloaded before delivery to the container transport vehicle. In order to inspect container cargo efficiently before delivering the container to the container transport vehicle, it is a common practice to perform the inspection with the container suspended. However, since radiation is radiated in the form of a fan from a radiation source, when performing inspections similar to radiation inspections of container cargo in a fixed state, container suspensions are also detected, and inspections are inaccurate and unclear. It may become a thing.
Such problems such as inspection efficiency and accuracy are also mentioned in the inspection of imported containers.

  In the present invention, it is possible to inspect all containers unloaded from a ship or loaded into a ship, and an accurate inspection result can be obtained even when the inspection is performed with the container suspended. The object is to provide a container cargo inspection device.

In order to achieve the above object, a container cargo inspection apparatus according to the present invention is a container cargo inspection apparatus that performs a radiation inspection of cargo in a container unloaded from a ship by a quay crane, and A temporary placement table for temporarily placing a container to be unloaded from the container, a container relay means provided with a container lifting tool, lifting the container temporarily placed on the temporary placement table and delivering it to a container transport vehicle, and the container relay means A first floor having a second floor space having a radiation inspection means for performing a radiation inspection of the container and a wheel for moving the quay crane into a lower frame, and waiting / passing the container transport vehicle And the radiation inspection means is disposed along the side surface and the bottom surface of the container. When, and a placement radiation radiating portion so as to project the radiation transmitted through the container to the radiation detector, the overall height in the lower rack構部of the quay crane constitute less than the lower rack構部of the quay crane It is used.

In order to achieve the above object, a container cargo inspection apparatus according to the present invention is a container cargo inspection apparatus that performs a radiation inspection of cargo in a container loaded on a ship by a quay crane, and includes a container suspension. A container relay means for lifting and moving a container transported by a container transport vehicle; a temporary placement table on which a container lifted and moved by the container relay means is temporarily placed to be a delivery position to the quay crane; and the container relay means A second floor space including a radiation inspection means for performing a radiation inspection of the container suspended by the vehicle, and a wheel for moving the quay crane into the lower frame, and waiting and passing through the container transport vehicle The radiation inspection means is located along the side surface and bottom surface of the container. And a radiation radiation part arranged so as to project the radiation transmitted through the container onto the radiation detection part, and the overall height is configured to be lower than the lower frame part of the quay crane. It may be used in the lower frame part of the crane.
In the container cargo inspection apparatus having the above-described configuration, the radiation radiating section may be configured such that a radiation source is disposed at the upper surface position of the container.
In addition, an opening connecting the second floor space and the first floor space is provided in a lower part of the inspection unit using the radiation inspection means, and the opening may be provided with a shielding door for shielding radiation. .

In the container cargo inspection apparatus having the above-described configuration, a container cargo inspection apparatus for performing a radiation inspection of cargo in a container unloaded from a ship by a quay crane, and temporarily placing a container unloaded from the ship by the quay crane And a container relay means provided with a container lifting tool for lifting and moving a container temporarily placed on the temporary table and delivering it to a container transport vehicle, and for performing a radiation inspection of the container lifted by the container relay means The radiation inspection means comprises: a second floor space provided with radiation inspection means; and a first floor space provided with wheels for moving the quay crane into a lower frame part and waiting / passing the container transport vehicle. Is a radiation detector disposed along the side and bottom of the container, and the radiation detector And a radiation emitting unit that is arranged for projecting the radiation transmitted through the container, and characterized in that it is used the overall height constitutes less than the lower rack構部of the quay crane in the lower rack構部of the quay crane By doing so, since the container unloaded from the ship can be efficiently inspected before being delivered to the container transport vehicle, all the unloaded containers can be inspected.

In addition, when loading a container on a ship, a container relay means provided with a container lifting tool for lifting and moving a container transported by a container transport vehicle, and a container lifted and moved by the container relay means are temporarily placed and the container A second floor space provided with a temporary table serving as a delivery position to the quay crane and a radiation inspection means for performing a radiation inspection of the container suspended by the container relay means, and movement of the quay crane into the lower frame And a first floor space for waiting and passing through the container transport vehicle. The radiation inspection means includes a radiation detector arranged along a side surface and a bottom surface of the container, and a container in the radiation detector. and a radiation emitting unit that is arranged for projecting the transmitted radiation, the quay click the overall height By constituting lower than the lower rack構部of over emissions used in the lower rack構部of the quay crane, it is possible to containers stowed from the container transporting vehicle to ship efficiently, and accurately inspect . In addition, since inspection can be performed immediately before loading into the ship, it is possible to detect even if an unknown situation occurs between the time when the container is transported to the container yard and the time when it is loaded into the ship. In other words, even when an inspection is performed when a container loaded on a ship is carried into the container yard, there is a possibility that illegal articles such as socially harmful articles may be loaded into the container between the container yard and loading. . Even in such a case, it is possible to detect illegal articles such as social evil articles in the container.

  In addition, since the radiation emitting part and the radiation detecting part of the radiation inspection means can detect and inspect the radiation that passes through only the container, the container hanger that causes inaccurate and unclear inspection Not affected.

  Embodiments of the container cargo inspection apparatus of the present invention will be described below with reference to the drawings. In addition, the embodiment shown below is a one part form which concerns on this invention, and this invention is not limited only to the following forms.

  FIG. 1 is a front view of an embodiment of the container cargo inspection apparatus of the present invention, and FIG. 2 is a left side view of the embodiment of the container cargo inspection apparatus of the present invention. 3 and 4 are block diagrams showing the radiation range and radiation path of the radiation from the radiation emitting unit. In addition, FIG. 6 is explanatory drawing of the quay area where the said inspection apparatus is used.

  In FIG. 6, a container ship 12 is moored on the sea side of the quay 10 of the harbor, and a large number of containers 14 are stacked on the container ship 12. On the land side of the quay 10, a quay crane 16 is placed at the unloading position of the container ship 12. A container cargo inspection device 20 according to the present invention is disposed in the lower frame portion of the quay crane 16. The container 14 lifted by the spreader 18 of the quay crane 16 is unloaded along the path indicated by the arrow A and temporarily placed on the temporary table 22 of the inspection device 20. The container 14 that has been inspected by the inspection apparatus 20 is delivered to the container transport vehicle 70 and transported to the destination area.

  Hereinafter, a specific configuration of the inspection apparatus 20 will be described with reference to FIGS. 1 and 2. The inspection device 20 has a two-story structure, and the first floor is a waiting / passing area for the container transport vehicle 70 as a lower space, and the second floor is an inspection area for container cargo. Wheels 26 are attached to the lower ends of the four main legs 24 which are through pillars on the first floor and the second floor, and the inspection apparatus 20 is movable. The wheel 26 may be locked when the container 14 is inspected.

  On the second floor, an overhanging portion 28 is provided on the sea side, and the upper surface of the overhanging portion 28 is a temporary table 22. The upper part of the temporary table 22 is opened, and the container 14 lifted by the spreader 18 of the quay crane 16 is unloaded from the opening and temporarily placed on the temporary table 22.

  In addition, a pair of overhead cranes 54 are hanged over the horizontal beam 52 at the upper part of the second floor as container relay means. The overhead crane 54 has a pair of hoisting machines, and a spreader 60 as a container hoisting tool for hoisting the container 14 can be moved up and down by a hoisting machine via a hoisting wire 58. The container 14 is lifted and moved by the overhead crane 54 and delivered to the container transport vehicle 70.

  Further, on the second floor, a platform 38 is provided on the land side adjacent to the temporary table 22. An X-ray inspection machine 40 as a radiation inspection means is movably disposed on the platform 38. That is, the X-ray inspection machine 40 moves in the longitudinal direction of the container 14 lifted by the overhead crane 54 via the spreader 60 and scans the cargo in the container 14.

  The X-ray inspection machine 40 includes a radiation source 44 that emits X-rays in a fan shape in a casing 42 as a radiation emitting unit. Further, the lower part of the casing 42 of the X-ray inspection machine 40 is connected to a vertical wall 49 provided at an interval equal to or larger than the width of the container 14 to be inspected. The vertical wall 49 is provided with an X-ray detector 50 that is a radiation detection unit having a shape (L-shaped) along the side surface and the bottom surface of the container 14, and is radiated from the radiation source 44 and transmitted through the container. It is configured to project a line. By making the X-ray detector 50 L-shaped, X-rays that pass through the lower surface of the container 14 can also be detected, and the container 14 can be effectively inspected in a narrow space where the inspection space is limited. .

  The radiation source 44 and the X-ray detector 50 are arranged so as to detect X-rays transmitted from only the container 14 to be inspected among the X-rays emitted from the radiation source 44. That is, the X-ray detector 50 may be arranged such that the height of the radiation source 44 is adjusted to the height of the upper surface of the container 14 and the height of the X-ray detector 50 is adjusted to the upper surface.

  A plurality of wheels 48 are provided on the bottom bottom surface of the casing 42 to allow the X-ray inspection machine 40 to move. In one corner of the platform 38, an opening 62 for lowering the container 14 down is provided.

  The X-ray inspection of the container 14 is normally performed in a state where the container 14 is lifted by the overhead crane 54 via the spreader 60 above the opening 62. For this reason, the opening 62 is provided with a shielding door 30 for shielding radiation. The shielding door 30 is provided with a roller 32, which enables sliding opening to the platform 38 side. Further, the three wall surfaces surrounding the container 14 centering on the back surface of the X-ray detector 50 are provided with radiation shielding walls (not shown) for shielding radiation.

A specific arrangement form of the radiation source 44 and the X-ray detector 50 in the container cargo inspection apparatus as described above will be described with reference to FIGS.
In FIG. 3, the broken line indicates the X-ray 45, and α indicates the radiation range (radiation angle) of the X-ray 45 radiated in a fan shape. The arrangement form shown in FIG. 3 arranges the radiation source 44 so that X-rays passing through the center of the X-ray 45 emitted from the radiation source 44 at the radiation angle α are emitted along the upper surface of the container 14. is there. By arranging the radiation source 44 in such a manner, the X-rays radiated from the radiation source 44 are transmitted along the upper surface of the container 14, and an X-ray path reaching the X-ray detector 50 can be configured. . Further, X-rays corresponding to the lower half of the radiation range pass through only the container 14 and reach the X-ray detector 50. For this reason, even in the inspection with the container 14 suspended, the shadow of the spreader 60 is not projected on the X-ray detector 50, and an accurate and clear inspection result can be obtained. That is, normally, as shown in FIG. 5A, since the radiation source 44 is disposed on the lower side of the container 14 and X-rays are radiated upward, the spreader 60 that is a container suspension is used for the X-rays. Although it has been projected on the detector 50, in this embodiment, only the container 14 can be inspected without projecting the spreader 60 as shown in FIG. Note that X-rays corresponding to the upper half of the radiation range α need not be detected because they do not pass through the container 14.

  Next, the arrangement form shown in FIG. 4 will be described. In addition, since the structural member of the arrangement | positioning form shown in FIG. 4 becomes the same as the arrangement | positioning form shown in FIG. 3, suppose that the same code | symbol is attached | subjected to each structural member. In this arrangement, the source 44 is arranged so that X-rays passing through the upper limit of the radiation range α of the X-ray 45 of the source 44 pass through the container 14 along the upper surface of the container 14 and reach the X-ray detector 50. Is to be placed. Even with such an arrangement, the same action as that of the arrangement shown in FIG. 3 can be obtained. Also, as shown in FIG. 4, if the radiation angle α is 90 ° or more, the radiation source 44 can be disposed close to the container 14 to be inspected. The device itself can be reduced in size. Other than the arrangement forms shown in FIGS. 3 and 4, any arrangement form that is intermediate between the two arrangement forms described above may be used.

  In the inspection apparatus 20 having the above-described configuration, first, the inspection apparatus 20 is self-propelled and deployed in the lower frame portion of the quay crane 16. Next, the container 14 lifted by the quay crane 16 is unloaded from the opening above the temporary table 22 and temporarily placed on the temporary table 22. Next, the overhead crane 54 is moved above the temporary table 22, and the container 14 is gripped by the spreader 60 and lifted. With the container 14 being lifted, the overhead crane 54 is traversed to a position directly above the opening 62.

  Next, the X-ray inspection machine 40 moves in the longitudinal direction of the container 14 suspended through the spreader 60 to scan the cargo in the container 14. That is, a fan-shaped X-ray is emitted from the radiation source 44 of the X-ray inspection machine 40 toward the container 14. The X-ray attenuates in the process of passing through the outer shell of the container 14 and the cargo in the container, and the attenuated transmitted X-ray is detected by the X-ray detector 50. The X-ray detector 50 converts the detected X-rays into electric signals and outputs them to an image processing device (not shown). The image processing device processes the electrical signal and displays an image relating to the cargo in the container 14 on a monitor (not shown). The image displayed on the monitor is checked for any obvious differences from the cargo list declared by the operator.

  The above cargo can be checked by the following method. That is, the database is stored in the X-ray inspection machine 40, and the expected amount of transmitted X-rays corresponding to the cargo of the container 14 to be inspected is set. In the container 14 inspected by such an X-ray inspection machine 40, an alarm or the like is sounded when the dose of transmitted X-rays is significantly different from the expected amount. The container 14 where the alarm sounded is sent to a detailed inspection separately. This reduces human labor and improves the inspection speed.

  When the inspection is completed, the shielding door 30 provided at the upper part of the opening 62 is slid open, and the inspected container 14 is delivered to the container transport vehicle 70 waiting in the downstairs. In addition, naturally the process after the conveyance by the container conveyance vehicle 70 differs in the container in which normality was confirmed by X-ray inspection, and the container in which abnormality was confirmed.

  In the container cargo inspection apparatus 20 as described above, it is possible to inspect container cargo efficiently in consideration of the relationship with the unloading speed from the container ship 12. That is, when the container unloaded by the quay crane 16 is handed over to the container transport vehicle 70, both timings often do not match. In such a case, the quay crane 16 has to stand by with the container suspended. In the inspection apparatus 20 of the present invention, since the container can be temporarily placed on the temporary table, the quay crane 16 can go to the next container even if the timings of the both do not match. In addition, since the container cargo is inspected using the conventional waiting time, the troublesome work of once inspecting the container after storing the container in the container yard is eliminated.

  In the above description, the case where the container of the imported cargo loaded on the container ship 12 is unloaded by the quay crane 16 has been described. However, the container cargo inspection apparatus 20 of the present embodiment is not limited to imported cargo, but can also be applied to inspection of export cargo in containers. In this case, the container transport route is opposite to that described above. That is, the export container transported down the floor of the inspection apparatus 20 by the container transport vehicle 70 is lifted to the second floor by the overhead crane 54, and the export cargo in the container is inspected by the X-ray inspection machine 40. When the normality of the container is recognized as a result of the inspection, the container is temporarily placed on the temporary placement table 22 serving as a delivery position to the quay crane. The temporarily placed container is loaded onto the container ship 12 by the quay crane 16. As a result of the inspection, an appropriate measure is separately taken for a container in which an abnormality is detected.

  In the said embodiment, the X-ray inspection machine which uses an X-ray as a container cargo inspection machine is equipped. X-rays have a large penetrating power, and are particularly effective in the present invention that requires the outer iron plate of the container to be transmitted. Preferably, high-energy X-rays of about 6 to 9 MeV are used. However, the radiation inspection means used in the present invention may be a γ-ray inspection machine that uses γ-rays as radiation.

  Moreover, in the said embodiment, it described that the overhead crane 54 was used as a container relay means. However, the container relay means according to the present invention is not limited to the overhead crane 54, but may be means having other structures as long as the container can be lifted and moved and delivered to the container transport vehicle.

  In addition, the said embodiment is one aspect | mode of the suitable embodiment which concerns on the container cargo inspection apparatus of this invention, Comprising: Unless the main part of invention is changed, various forms can be taken. That is, although the inspection apparatus 20 is a two-story structure having four main legs 24, the number of main legs can be set, and the container 14 can be temporarily placed, lifted, inspected, and delivered to the transport vehicle. If it is a thing, even the structure of two stories is arbitrary. Therefore, although the provisional table 22 is described as being provided in the overhanging portion 28, this is also one of the preferable conditions, and the container cargo inspection device of the present invention also includes an aspect in which the overhanging portion is not provided.

  In the embodiment as described above, X-rays are transmitted through the side surface and the bottom surface of the container 14, and the X-ray detector 50 is formed in an L shape along the side surface and the bottom surface of the container 14. The height of the line detector 50 can be reduced. Therefore, the ceiling height of the inspection area can be reduced. For this reason, the overall height of the inspection apparatus 20 itself can be lowered, and the inspection apparatus 20 can be downsized. Further, according to the inspection apparatus 20 according to the present embodiment, X-rays for inspecting the container 14 pass through only the container 14 and reach the X-ray detector 50, so that the container 14 is suspended. Even in this inspection, the shadow of the spreader 60 is not projected onto the X-ray detector 50. Therefore, an accurate and clear inspection result can be obtained.

It is a front view of the embodiment concerning the container cargo inspection device of the present invention. It is a left view of embodiment which concerns on the container cargo inspection apparatus of this invention. It is a figure which shows the 1st arrangement | positioning form of the radiation emission part and radiation detection part of this embodiment. It is a figure which shows the 1st arrangement | positioning form of the radiation emission part and radiation detection part of this embodiment. It is a figure which contrasts a normal radiographic examination form (A) and the radiographic examination form (B) of invention. It is a figure which shows the relationship between the inspection apparatus of the container cargo of this invention, and a quay crane.

Explanation of symbols

10 ......... Quay, 12 ......... Container ship, 14 ......... Container, 16 ......... Quay crane, 18 ...... Spreader, 20 ...... Inspection equipment, 22 ...... Temporary table 24 ......... Main leg, 26 ......... Wheel (rubber tire), 28 ...... Overhang, 30 ......... Shield door, 38 ......... Platform, 40 ...... X-ray inspection machine, 42 ...... Case, 44 ... ...... Source, 50 ...... X-ray detector, 52 ...... Cross beam, 54 ...... Overhead crane, 60 ...... Spreader, 70 ...... Container transport vehicle.

Claims (4)

  A container cargo inspection device for performing a radiation inspection of cargo in a container unloaded from a ship by a quay crane, comprising a temporary table for temporarily placing a container unloaded from the ship by the quay crane, and a container suspension A second-floor space comprising container relay means for lifting and moving a container temporarily placed on the temporary table to be delivered to a container transport vehicle, and radiation inspection means for performing a radiation inspection of the container lifted by the container relay means And a first-floor space with wheels for moving the quay crane into the lower frame, and waiting and passing through the container transport vehicle, wherein the radiation inspection means is arranged along the side surface and bottom surface of the container. And projecting the radiation that has passed through the container onto the radiation detection unit. And a radiation emitting unit that location, the inspection apparatus of container cargo, characterized in that it is used in the lower rack 構部 of the quay crane constitute less than the lower rack 構部 of the overall height the quay crane.   A container cargo inspection device for performing a radiation inspection of cargo in a container loaded on a ship by a quay crane, comprising container suspension means for lifting and moving a container transported by a container transport vehicle, and the container relay A second floor comprising a temporary placement table on which a container lifted and moved by means is temporarily placed to be a delivery position to the quay crane, and a radiation inspection means for performing a radiation inspection of the container lifted by the container relay means And a first floor space provided with wheels for moving the quay crane into the lower frame of the quay crane, and waiting and passing through the container transport vehicle, wherein the radiation inspection means is provided along the side surface and the bottom surface of the container. Arranged radiation detector and radiation transmitted through the container to the radiation detector A container cargo inspection apparatus comprising: a radiation radiating portion arranged so as to project; and a total height lower than that of the lower frame portion of the quay crane, and being used in the lower frame portion of the quay crane .   The container radiation inspection apparatus according to claim 1, wherein the radiation radiating unit is configured such that a radiation source is disposed at an upper surface position of the container. An opening connecting the second floor space and the first floor space is provided at a lower portion of an inspection unit using the radiation inspection means, and the opening is provided with a shielding door for shielding radiation. The container cargo inspection device according to any one of claims 1 to 3.

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