JP2018063141A - Bagging system for treated object containing radioactive material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bagging system for treated objects containing radioactive material capable of effectively bagging treated objects containing radioactive material.SOLUTION: A system A for accommodating treated objects containing radioactive material in a bag body 1 comprises: a container transport device 4 for transporting a transport container 3 having an opened upper part to a predetermined position; and a treated object transporting/charging device 5 for charging treated objects into the bag body 1 in the transport container 3 transported to the predetermined position by the container transport device 4. The transport container 3 includes a radiation quantity detection unit 7 for measuring a space dose rate of radiation around the bag body 1 and weighting means 11 for charging the treated objects into the bag body 1 and weighting the treated objects.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a system for bagging an object to be processed containing a radioactive substance.

  Conventionally, in the construction field or the like, a flexible container bag or the like (bag body) is frequently used as a means for storing an object to be treated such as various types of waste. In addition, wastes are sorted into incombustibles and combustibles and stored in flexible container bags, and the sorted wastes are transported to a treatment plant in a state of being stored in flexible container bags for storage and processing ( For example, see Patent Document 1).

  In addition, in order to temporarily store and store wastes containing radioactive substances and soils and the like in radioactive waste treatment facilities and the like, the wastes are packed in a flexible container bag and enclosed.

JP2013-130403A

  However, in radioactive waste treatment facilities, etc., the bagging work to pack the material to be processed containing radioactive substances in the flexible container bag is performed using heavy equipment, and the radiation dose, concentration and weight after enclosing are individually measured. It is done manually.

  For this reason, it is necessary to secure each work area individually, and there are cases where it is difficult to secure a place in a limited site.

  In addition, when it is necessary to decontaminate land contaminated with radioactive materials, it is necessary to pack the material to be treated (contaminated materials, waste) containing radioactive materials such as earth and sand, litter, fallen leaves, and vegetation. As the amount of work increases, there is a problem that work efficiency is remarkably deteriorated due to labor distribution for performing individual work individually, and the work period and cost are increased. Further, as work efficiency deteriorates, an increase in radiation exposure for workers who perform manual work for a long time becomes a serious problem.

  In view of the above circumstances, an object of the present invention is to provide a bagging system for an object to be processed that includes a radioactive substance that enables efficient packing of the object to be processed that includes the radioactive substance.

  In order to achieve the above object, the present invention provides the following means.

  A bagging system for an object to be processed containing a radioactive substance according to the present invention is a system for accommodating an object to be processed containing a radioactive substance in a bag body, and a transport container formed by opening an upper part is placed at a predetermined position. A container transporting device for transporting, and a material transporting and feeding device for charging the material to be processed into the bag in the transporting container transported to a predetermined position by the container transporting device, and the transporting container Comprises a radiation dose detector for measuring the air dose rate of the radiation around the bag body, and further comprises weight measuring means for feeding the workpiece into the bag body and measuring the weight of the workpiece. It is characterized by that.

  Moreover, in the bagging system for the object to be processed containing the radioactive substance of the present invention, the radiation dose detector is located at a position detected by the scintillation fiber for measuring the spatial dose rate of radiation according to the magnitude of the radiation dose rate. It is desirable that the LED scintillation fiber detector is a combination of LEDs that develop color at corresponding positions.

  Furthermore, in the bagging system for the object to be processed containing the radioactive substance of the present invention, it is more desirable that the inner surface of the transfer container is formed of a lubricious plastic plate.

  Further, in the bagging system for the object to be processed containing the radioactive substance according to the present invention, the system is provided between the object to be processed conveyance input device and the conveyance container, and when the object to be processed is input to the bag body. It is desirable that a dust diffusion preventing device for preventing the diffusion of the object to be processed is provided, and that the dust diffusion preventing device is provided with an extendable dustproof cover.

  In the bagging system for the object to be processed containing the radioactive substance of the present invention, it becomes possible to efficiently bag the object to be processed containing the radioactive substance as compared with the conventional system.

It is a front view which shows the bagging system of the to-be-processed object containing the radioactive substance which concerns on one Embodiment of this invention. It is a side view which shows the bagging system of the to-be-processed object containing the radioactive substance which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view which shows the cylindrical container (conveyance container) of the bagging system of the to-be-processed object containing the radioactive substance which concerns on one Embodiment of this invention. FIG. 4 is a view taken along line X1-X1 in FIG. 3. It is an enlarged view of the S section in FIG.

  Hereinafter, with reference to FIGS. 1 to 5, a bagging system for an object to be processed including a radioactive substance according to an embodiment of the present invention will be described.

  Here, in the present embodiment, for example, in order to temporarily store waste containing radioactive material or processed material such as soil in a radioactive waste treatment facility or the like, the processed material containing the radioactive material is efficiently stored. The present invention relates to a system (apparatus) for filling a flexible container bag.

  First, as shown in FIG. 1, the flexible container bag 1 of this embodiment is formed using a flexible sheet-like member, can be folded when not in use, and is in use (at the time of storing an object to be processed). Is formed as a bag that can accommodate a large amount of objects with a large internal capacity. Moreover, this flexible container bag 1 is formed in the bottomed cylindrical shape and the bottomed square cylinder shape, for example.

  And in the bagging system of the processed material containing the radioactive substance of the present embodiment, the operation of loading the processed material into the flexible container bag as described above is automated, and the processed material is loaded into the flexible container bag. The radiation dose rate, concentration, and weight are measured in the same process.

  Specifically, in the bagging system A for a processing object containing a radioactive substance according to the present embodiment, as shown in FIGS. 1 and 2, two cylindrical containers (conveying containers) 3 are individually moved left and right on the rail 2. A container transporting device 4 to be moved, and a cylindrical container 3 is transported and positioned at a predetermined position in the center, and a workpiece to be processed is introduced into the flexible container bag 1 spread in the cylindrical container 3 from above. A transport input device 5 and a dust diffusion preventing device 6 for preventing dust diffusion when a workpiece is input into the flexible container bag 1 are provided.

  As shown in FIGS. 1 to 5, the cylindrical container 3 of the present embodiment is formed with a radiation dose detector 7 for measuring a radiation dose rate.

  Specifically, in the cylindrical container 3 of the present embodiment, the inner surface of the container body is formed of a lubricious plastic plate 8 using ultra high molecular weight polyethylene or the like.

  Further, a scintillation fiber 7 a is wound around and attached to the periphery of the lubricious plastic plate 8, and further, a steel plate 10 having a thickness of about 6 mm that forms the outer surface of the cylindrical container 3 with a spacer 9 between the scintillation plastic plate 8. Are integrally formed, and the LED line tape 7 b is wound around the outer surface of the steel plate 10 to form a container body of the cylindrical container 3.

  And in this embodiment, the radiation dose detector 7 is comprised by the scintillation fiber 7a and LED line tape 7b, and the elongate radiation dose detector 7 which is an LED scintillation fiber detector which combined this LED is wound around the outer periphery of a container main body. In addition, a cylindrical container 3 is configured.

  Further, the cylindrical container 3 is provided with a weight measuring means 11 at the bottom for putting a workpiece into the flexible container bag 1 and measuring the weight. Further, the cylindrical container 3 is provided with vibration generating means for applying vibration to the cylindrical container 3. Moreover, the cylindrical container 3 is provided with a cleaning hole 12 used at the bottom of the cylindrical container 3 for cleaning.

  The radiation dose detector 7 and the weight measuring means 11 are provided with an LED light emission control circuit, a channel analyzer, a digital signal converter, a time wave height converter when the object to be processed is put into the flexible container bag 1 and packed. And so on.

  A workpiece transport and input device 5 of this embodiment includes a belt conveyor (steel belt conveyor or the like), transports a workpiece including a radioactive substance, and is a cylindrical container positioned at a predetermined position in the center of the container transport device 4. A workpiece is put into the flexible container bag 1 in 3 from above.

  The dust diffusion preventing device 6 is for preventing the processing object from being scattered when the processing object is put into the flexible container bag 1 from the belt conveyor of the processing object conveying and feeding device 5. As shown in FIGS. 1 and 2, the dust diffusion preventing device 6 of this embodiment is connected to a dust-proof cover 6 a that houses the belt conveyor of the workpiece transfer and feeding device 5, and a tip opening of the dust-proof cover 6 a. And a dustproof elastic cover (expandable cover) 6b. The tip of the dustproof telescopic cover 6b can be brought into close contact with the upper end of the cylindrical container 3 positioned at a predetermined position in the center of the container transport device 4.

  In the bagging system A for processing objects including the radioactive substance according to the present embodiment configured as described above, the flexible container bag 1 is transported to a predetermined position together with the cylindrical container 3 by the container transport device 4 and positioned. An object to be processed is input into the flexible container bag 1 by the processing object conveying / inputting device 5.

  At this time, the object to be processed is packed in the back of the flexible container bag 1 by applying vibration by the vibration generating means, and when the container is full, the mouth of the flexible container bag 1 is manually operated by the worker or the robot. Close it by tying it up by remote control.

  And while moving the flexible container bag 1 which accommodated the to-be-processed object in the container conveying apparatus 4, the new cylindrical container 3 and the flexible container bag 1 are positioned in the center predetermined position, and said operation is repeated, flexible container bag 1) Pack the material to be processed.

  Here, in the bagging system A for a processing object containing a radioactive substance according to the present embodiment, when the processing object is put into the flexible container bag 1 from the belt conveyor of the processing object transport and feeding device 5, the processing object is processed. Passes through the inside of the dustproof cover 6a and the dustproof expansion / contraction cover 6b and drops into the flexible container bag 1. Thereby, it can prevent that a to-be-processed object splashes outside.

  Further, in the bagging system A for processing objects containing radioactive substances according to the present embodiment, a radiation dose detector 7 for LED scintillation fibers for measuring the air radiation dose rate is attached around the cylindrical container 3. As a result, the object to be processed is accommodated in the flexible container bag 1 and at the same time, the air dose rate (radiation dose rate) of the radiation around the flexible container bag 1 can be measured.

  Further, since the LED is colored at a position corresponding to the position detected in accordance with the magnitude of the radiation dose rate detected in the length direction of the detector 7 (colored with a different color), it is detected in the length direction. The size and position of the air dose rate of radiation and the distribution of the air dose rate of radiation can be represented by the difference in color. Thereby, an operator can grasp | ascertain the radiation dose (high and low of radiation dose, distribution) visually.

  Further, since the weight measuring means 11 is installed on the floor portion of the container transport device 4 or the cylindrical container 3, when the workpiece is stored in the flexible container bag 1, the workpiece after being loaded and stored The flexible container bag 1 and thus the weight of the object to be processed can be measured.

  Thereby, the radioactive density | concentration of the to-be-processed object accommodated in the flexible container bag 1 can be calculated immediately from the information of the radiation dose rate around the flexible container bag 1, and a weight.

  Furthermore, in the bagging system A for processing objects containing radioactive substances according to the present embodiment, the inner surface of the cylindrical container 3 is formed of the lubricious plastic plate 8, so that the flexible container bag 1 can be smoothly taken in and out. it can.

  Therefore, according to the bagging system A of the object to be processed containing the radioactive substance according to the present embodiment, it becomes possible to efficiently bag the object to be processed containing the radioactive substance as compared with the conventional case.

  As mentioned above, although one Embodiment of the bagging system of the to-be-processed object containing the radioactive substance which concerns on this invention was described, this invention is not limited to said one Embodiment, In the range which does not deviate from the meaning, it is appropriate. It can be changed.

  For example, in the present embodiment, the bag body that accommodates the object to be processed is described as being a flexible container bag. However, the bag body is not necessarily limited to the flexible container bag, and any bag body can be targeted.

  In addition, the transport container according to the present invention is not necessarily a container in which the container body is formed in a cylindrical shape (a bottomed cylindrical shape).

1 Flexible container bag
2 Rail 3 Cylindrical container (transport container)
Reference Signs List 5 Dust conveying and feeding device 6 Dust diffusion preventing device 7 Radiation dose detector 7a Scintillation fiber 7b LED line tape 8 Lubricating plastic plate 9 Spacer 10 Steel plate 11 Weight measuring means 12 Cleaning hole 13 Control device assembly A Contains radioactive substance Processing object bagging system

Claims (4)

A system for storing an object to be processed containing radioactive material in a bag,
A container transport device for transporting a transport container formed by opening an upper part to a predetermined position;
A workpiece transport and charging device that feeds the workpiece into the bag body in the transport container transported to a predetermined position by the container transport device;
The transport container is provided with a radiation dose detector that measures the air dose rate of the radiation around the bag body, and the weight measurement that inputs the object to be processed into the bag body and measures the weight of the object to be processed A bagging system for an object to be processed containing a radioactive substance, characterized by comprising means. In the bagging system of the to-be-processed object containing the radioactive substance of Claim 1,
The radiation dose detector is an LED scintillation fiber detector in which a scintillation fiber that measures the air dose rate of radiation is combined with an LED that develops color at a position corresponding to the position detected according to the magnitude of the radiation dose rate. A bagging system for processing objects containing radioactive material. In the bagging system of the to-be-processed object containing the radioactive substance of Claim 1 or Claim 2,
A bagging system for an object to be processed containing a radioactive substance, wherein an inner surface of the transfer container is formed of a lubricious plastic plate. In the bagging system of the to-be-processed object containing the radioactive substance as described in any one of Claims 1-3,
A dust diffusion preventing device is provided between the processing object transport input device and the transport container and prevents diffusion of the processing object when the processing object is charged into the bag body, A bagging system for an object to be processed containing a radioactive substance, wherein the dust diffusion preventing device is provided with a dust cover that can be expanded and contracted.

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