JP6650693B2 - Powder handling method - Google Patents

Description

  The present invention relates to a powder handling apparatus and a powder handling method used when a powder that may contain a radioactive substance is transported by a transfer facility.

  2. Description of the Related Art Conventionally, for example, a method for carrying in and out an adsorption tower described in Patent Document 1 aims at easily taking in and out an adsorption tower from a glove box while keeping the adsorption tower airtightly sealed. In this method of carrying in and out of the adsorption tower, one opening of the cylindrical vinyl bag is fixed in a sealed state to a bag holding part provided so as to surround a hanging piece provided on the upper surface of the adsorption tower, and the other is closed. The opening is fixed to the bag holding part of the glove box in a sealed state, the adsorption tower is suspended by the hanging piece, the adsorption tower is carried into the glove box, and after the operation of the adsorption tower is completed, the adsorption tower is lifted by the hanging piece. The adsorption tower is carried out of the glove box, the vinyl bag is squeezed below the adsorption tower, and hermetically sealed at two places, and the sealing portion is cut at an intermediate portion.

  Conventionally, for example, the transport sample analysis system and the analysis method described in Patent Literature 2 can perform sample analysis without opening the sample container, and can perform sample analysis in a shorter time than before. It is intended to reduce the possibility of contamination of workers and the amount of waste as well as possible. In the transport sample analysis system and the analysis method, a sample to be analyzed is collected in a sample container in a sampling device in a sampling chamber, and is conveyed by an air flow via a pneumatic tube. In the analysis unit in the analysis room, light is applied to the extraction cell of the sample container, and the transmitted light and the fluorescence are measured, thereby performing an analysis using a photoreaction without opening the sample container.

JP-A-8-271691 JP 2009-002863 A

  According to Patent Document 1, when the adsorption tower is carried out from the glove box, the vinyl bag is squeezed under the adsorption tower so that the adsorption tower is wrapped in a vinyl bag, welded at two places, hermetically sealed, and a sealing portion is formed at an intermediate portion. I am disconnected. However, since the hermetic seal for welding the vinyl bag may be incomplete, it is not suitable for conveying powder that may contain radioactive substances. Conventionally, in the case of a high dose, it is not possible to work with gloves, and it is difficult to perform highly accurate welding of a plastic bag with a manipulator.

  On the other hand, Patent Literature 2 discloses that a sample to be analyzed is collected in a sample container in a sampling device section in a sampling chamber, but does not show details of the collection. Then, for example, when the sample to be analyzed is a powder that may contain a radioactive substance, when the powder adheres to the outer surface of the sample container, the powder remains inside a pneumatic tube that transports the sample container. This means that the inside of the pneumatic tube is contaminated with radioactive material.

  The present invention has been made to solve the above-described problems, and when transporting powder that may contain a radioactive substance in a transfer facility, a powder that can prevent the transfer facility from being contaminated with a radioactive substance. It is an object to provide a handling device and a powder handling method.

  The powder handling apparatus according to the present invention includes a sealed housing whose inside is isolated from outside air, and an airtight wall that divides an internal space of the sealed housing into a first region and a second region while maintaining airtightness. A door that closes the through hole while maintaining the airtightness while opening the through hole provided in the airtight wall, and an opening that can communicate with the through hole is an outer peripheral portion of the through hole. A storage container body attached in the second region while maintaining airtightness with respect to an airtight wall, and the storage container body is closed while closing the opening of the storage container body while maintaining airtightness. A storage container including a lid that opens the opening integrally with the door when the door is opened from the first area in a state attached to the door; The storage container is provided so as to communicate with the outside of the second region and the closed casing. Characterized in that it and a transport facility for transporting to and from the external.

  According to this powder handling apparatus, the powder is stored in the storage container while preventing the powder from adhering to the outer surface of the storage container main body and the lid in the first region, and the storage container is transported by the transfer facility. . For this reason, when the powder that may contain a radioactive substance is transported by the transfer facility, it is possible to prevent the transfer facility from being contaminated with the radioactive substance due to the adhesion of the powder.

  Further, in the powder handling device of the present invention, the transfer facility may be configured to seal the storage container with the second region through a pneumatic pipe provided from the second region to the outside of the closed casing. It is a pneumatic facility for transporting between the outside of the housing.

  According to this powder handling device, the storage container can be easily transported by the pneumatic equipment.

  Further, the powder handling apparatus according to the present invention is characterized in that the powder handling apparatus further includes a pneumatic element transported by the pneumatic equipment, and the storage container is provided so as to be accommodated in the pneumatic element.

  According to this powder handling device, the storage container can be stored in the pneumatic device, so that the storage container can be transported using the pneumatic device in the pneumatic equipment.

  The powder handling device according to claim 2, wherein in the powder handling device of the present invention, the storage container is configured as a pneumatic element conveyed by the pneumatic equipment.

  According to this powder handling device, since the storage container itself is configured as a pneumatic element, the number of components can be reduced and handling of powder can be facilitated.

  Further, in the powder handling device of the present invention, the storage container is fitted in the storage container body while maintaining the airtightness with respect to the airtight wall by the rotational movement around the opening. The unit is configured to maintain the airtightness with respect to the door body by rotating the storage container body and to be integrated with the door body.

  According to this powder handling apparatus, when storing the powder in the storage container, the operation of installing the storage container in the first area while maintaining the airtightness is performed together with the operation of integrating the lid with the door body. Therefore, it can be easily performed even with a manipulator or the like, and is effective when the powder has a high dose.

  The powder handling method of the present invention uses a hermetically-sealed housing in which an internal space cut off from the outside air is airtightly divided into two parts while maintaining airtightness in a first region and a second region, and provided on the airtight wall. The closed through hole is closed while maintaining the airtightness by the door body, and the opening of the storage container main body of the storage container communicates with the through hole in the second region, and the outer peripheral portion of the through hole. The storage container body is attached to the airtight wall while maintaining the airtightness, and the lid and the door that open and close the opening of the storage container body while maintaining the airtightness are both opened from the first region. Storing a powder that may contain a radioactive substance in the storage container body from the first area, closing the lid together with the door body in the first area, and closing the storage container in the second area. Remove from the airtight wall, and from the second area, the closed casing Transporting the container in transport facilities provided in communication with the outside from the second region to the outside of the sealed housing, characterized in that.

  According to this powder handling method, the powder is stored in the storage container while preventing the powder from adhering to the outer surfaces of the storage container main body and the lid in the first region, and the storage container is transported by the transfer facility. . For this reason, when the powder that may contain a radioactive substance is transported by the transfer facility, it is possible to prevent the transfer facility from being contaminated with the radioactive substance due to the adhesion of the powder.

  ADVANTAGE OF THE INVENTION According to this invention, when conveying the powder which may contain a radioactive substance by a transfer facility, the situation where a transfer facility is contaminated with a radioactive substance can be prevented.

FIG. 1 is a plan sectional view of a powder handling apparatus according to an embodiment of the present invention. FIG. 2 is a sectional view of a storage container in the powder handling device according to the embodiment of the present invention. FIG. 3 is a sectional view of a storage container in the powder handling device according to the embodiment of the present invention. FIG. 4 is a sectional view of a storage container in the powder handling device according to the embodiment of the present invention. FIG. 5 is a sectional view of a pneumatic element in the powder handling apparatus according to the embodiment of the present invention. FIG. 6 is a sectional view of a pneumatic element in the powder handling apparatus according to the embodiment of the present invention. FIG. 7 is a plan sectional view of the powder handling device according to the embodiment of the present invention in use. FIG. 8 is a cross-sectional view of the carry-in container in the powder handling device according to the embodiment of the present invention. FIG. 9 is a cross-sectional view of the carry-in container in the powder handling device according to the embodiment of the present invention. FIG. 10 is a cross-sectional view of the carry-in container in the powder handling device according to the embodiment of the present invention. FIG. 11 is a plan sectional view of another example of the powder handling apparatus according to the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by the embodiment. The components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

  FIG. 1 is a plan sectional view of the powder handling apparatus according to the present embodiment. 2 to 4 are cross-sectional views of a storage container in the powder handling device according to the present embodiment. FIG. 5 and FIG. 6 are cross-sectional views of the pneumatic element in the powder handling apparatus according to the present embodiment. FIG. 7 is a plan sectional view of the used state of the powder handling apparatus according to the present embodiment. 8 to 10 are sectional views of the carry-in container in the powder handling device according to the present embodiment.

  As shown in FIG. 1, the powder handling apparatus according to the present embodiment includes a closed casing 1, an airtight wall 2, a through hole 3, a door 4, a storage container 5, a pneumatic element 6, Transfer equipment (transfer equipment) 7.

  The closed housing 1 is configured as a so-called glove box in which the inside is shielded from the outside air, at least a part of the wall is formed of a transparent material, and the inside can be accessed from the outside via the globe 10. Have been.

  The airtight wall 2 is provided inside the closed casing 1. The airtight wall 2 divides the internal space of the closed casing 1 into a first area 1A and a second area 1B while maintaining airtightness. That is, the internal space of the closed casing 1 is divided into the first area 1A and the second area 1B by the airtight wall 2, and forms a space in which the first area 1A and the second area 1B are mutually shut off. .

  The through hole 3 is provided through the airtight wall 2. That is, the through hole 3 communicates the first region 1A and the second region 1B divided by the airtight wall 2.

  As shown in FIGS. 1 and 2, the door body 4 is swingably supported about a shaft 4 a provided to the airtight wall 2. The door body 4 opens the through hole 3 provided in the airtight wall 2 by swinging away from the airtight wall 2. On the other hand, the door body 4 closes the through hole 3 while maintaining the airtightness by swinging approaching the airtight wall 2. In addition, the swing movement of the door body 4 when the door body 4 is opened moves toward the first area 1A, hinders the movement to the second area 1B side, and moves the door body 4 against the airtight wall 2 so as to maintain airtightness. It is configured in such a manner that it comes into contact with the wall surface on the first area 1A side via a sealing material (not shown). Then, the opening / closing operation of the door body 4 is performed from the first area 1A. Further, the door 4 is maintained in a state in which the through hole 3 is closed by a lock mechanism (not shown). In addition, the door body 4 is not limited to the configuration that swings with respect to the airtight wall 2, and may be configured to be detachable from the airtight wall 2.

  As shown in FIGS. 1 and 2, the storage container 5 includes a storage container main body 5A and a lid 5B. The storage container main body 5A is configured such that one end formed in a tubular shape is opened to form an opening 5Aa, and the other end is closed. As shown in FIGS. 3 and 4, the storage container main body 5 </ b> A is in contact with the airtight wall 2 in a state where the end face of one end where the opening 5 </ b> Aa is formed is in contact with the periphery of the through hole 3 provided in the airtight wall 2. Is held. Further, the storage container body 5A is held by the airtight wall 2 while maintaining the airtightness by a sealing member (not shown) provided at the periphery of the opening 5Aa or the periphery of the through hole 3. The inside and the first region 1 </ b> A communicate with each other through the through hole 3. That is, in a state where the storage container main body 5A is held by the airtight wall 2, the first area 1A and the second area 1B maintain airtightness, and communication with each other is prevented. The mechanism for holding the storage container main body 5A on the airtight wall 2 may be, for example, a structure in which the storage container main body 5A is pressed around the opening 5Aa with one end face of the storage container main body 5A pressed against the airtight wall 2 via a sealing member. There is a configuration in which the protrusions and recesses of the airtight wall 2 and the storage container main body 5A are fitted to each other by rotating in the direction.

  The lid 5B opens and closes the opening 5Aa of the storage container body 5A as shown in FIGS. The lid 5B is attached to the opening 5Aa of the storage container main body 5A in a state where airtightness is maintained by a seal member (not shown), and closes the opening 5Aa. The lid 5B is held with respect to the storage container main body 5A with the opening 5Aa closed. The mechanism for holding the lid 5B to the storage container main body 5A may be, for example, a lid 5B and the storage container main body 5A in a direction around the opening 5Aa in a state where the opening 5Aa is closed by the lid 5B via a sealing member. There is a configuration in which the concave and convex portions of the lid 5B and the storage container body 5A are fitted to each other by relatively rotating the.

  Further, as shown in FIGS. 3 and 4, the lid 5 </ b> B is held by the door body 4 that closes the through hole 3 provided in the airtight wall 2. The mechanism for holding the lid 5B on the door 4 includes, for example, a surface where the door 4 appears in the second area 1B and a surface which appears outside the storage container 5 with the lid 5B closing the opening 5Aa. By rotating the lid 5B in the direction around the opening 5Aa of the storage container main body 5A with respect to the door 4 in a state in which the lid 5B is aligned with the door 4, the unevenness between the lid 5B and the door 4 is fitted to each other. is there. In the present embodiment, the lid 5B and the door 4 are fitted to each other in a state where the door 4 closes the through hole 3 provided in the airtight wall 2 and the lid 5B This is caused by rotational movement of fitting the storage container main body 5A to the airtight wall 2 in a state where the storage container main body 5A is fitted to each other. Therefore, in a state where the storage container main body 5A is fitted to the airtight wall 2, the lid 5B moves as the door 4 moves to open the through hole 3, and the opening 5Aa of the storage container main body 5A is opened.

  As shown in FIGS. 3 and 4, when the lid 5B and the door 4 are fitted to each other, a surface appearing outside the storage container 5 with the lid 5B closing the opening 5Aa. And the surface where the door body 4 appears in the second area 1B is kept airtight by a seal member (not shown) and isolated from the outside. Therefore, in a state where the lid 5B and the door body 4 are moved together to open the opening 5Aa of the storage container main body 5A, the surface of the lid 5B that appears outside the storage container main body 5A is maintained airtight. The door body 4 is isolated from the first area 1A while being isolated from the first area 1A, and the surface of the door body 4 that appears in the second area 1B is kept airtight. Then, as shown in FIGS. 2 and 3, when the lid 5B closes the opening 5Aa of the storage container main body 5A, the inside of the storage container main body 5A communicating with the first region 1A and the lid 5B are in the first position. The surface that appears in the region 1A is sealed in the storage container 5 while maintaining airtightness via a sealing member.

  The pneumatic element 6 houses the storage container 5 as shown in FIGS. As shown in FIGS. 5 and 6, the pneumatic element 6 is formed in a cylindrical shape, and the storage container 5 is inserted into the inside thereof, and the inserted state is maintained. For this reason, the storage container 5 is surrounded by the cylindrical shape of the air feeder 6 and is protected against external impact. The holding of the storage container 5 is performed by setting the dimensions such that the cylindrical inner diameter of the pneumatic element 6 and the outer diameter of the storage container 5 are fitted to each other, or a claw formed on the cylindrical inner surface of the pneumatic element 6. (Not shown) due to the structure of being hooked on the outer surface of the storage container 5 in which the inserted storage container 5 is inserted. Alternatively, holding of the storage container 5 is performed by closing one end of the cylindrical shape of the pneumatic element 6 and closing the other end with a lid. The pneumatic element 6 is conveyed by compressed air or vacuum inside a pneumatic pipe 7A of a pneumatic equipment 7 described later. For this reason, the pneumatic element 6 is provided with a fin 6a formed along the cylindrical outer peripheral surface and receiving the air pressure. The fin 6a also has a function of protecting the stored container 5 against an external impact.

  By the way, in the present embodiment, the configuration in which the storage container 5 is stored in the pneumatic element 6 has been described, but the present invention is not limited to this. For example, although not explicitly shown in the drawing, the storage container 5 is configured as a pneumatic element 6, and provided with fins (6a) formed along the outer peripheral surface of the storage container 5 and receiving air pressure. The fin (6a) also has a function of protecting the storage container 5 itself against an external impact.

  The pneumatic equipment 7 transports the pneumatic element 6 by compressed air or vacuum, and has a pneumatic pipe 7A and a housing part 7B. The pneumatic tube 7 </ b> A is a passage that guides the conveyance of the pneumatic element 6 described above, and has one end disposed in the second region 1 </ b> B of the closed casing 1 and the other end disposed outside the closed casing 1. It is provided in communication with a storage unit not explicitly shown in the figure. The accommodation section 7B is arranged in the second area 1B of the closed casing 1, and one end of the air supply pipe 7A is provided in communication therewith. The accommodation portion 7B is a box that accommodates the above-described pneumatic element 6, and is closed by a door while airtightness is maintained, but is opened through the second region 1B, though not explicitly shown in the drawing. You. As shown in FIG. 7, the pneumatic equipment 7 is configured such that the pneumatic element 6 is accommodated in the accommodating portion 7B and closed, and the closed casing 1 is compressed by compressed air or vacuum through the pneumatic tube 7A. The transporter 6 is transported to the outside.

  A description will be given of powder handling (powder handling method) by the powder handling apparatus of the present embodiment configured as described above. First, as shown in FIG. 2, the through hole 3 provided in the airtight wall 2 is closed by the door body 4 while maintaining the airtightness. Next, as shown in FIG. 3, in the second area 1 </ b> B, the opening 5 </ b> Aa of the storage container body 5 </ b> A of the storage container 5 communicates with the through hole 3 and the airtight wall 2 which is the outer peripheral portion of the through hole 3. The storage container body 5A is attached while maintaining airtightness. Next, as shown in FIG. 4, the lid 5B and the door 4 that open and close the opening 5Aa of the storage container body 5A while maintaining the airtightness are both opened from the first area 1A. Next, a powder that may contain a radioactive substance is stored in the storage container body 5A from the first region 1A. Next, as shown in FIG. 3, the lid 5B is closed together with the door 4 in the first area. Next, the storage container 5 is removed from the airtight wall 2 in the second area 1B. Next, as shown in FIG. 6, the storage container 5 is stored in the pneumatic element 6 in the second area 1B. Next, as shown in FIG. 7, the pneumatic element 6 in which the storage container 5 is accommodated in the second area 1B is accommodated in the accommodating portion 7B of the pneumatic equipment 7, and the outside of the closed casing 1 is introduced from the second area 1B. The pneumatic element 6 is conveyed from the second area 1B to the outside of the closed casing 1 through the pneumatic pipe 7A provided so as to pass through.

  The powder handling apparatus according to the present embodiment is configured to transfer the storage container 5 containing the powder from the second area 1 </ b> B to the outside of the closed casing 1, It may be used to transport the storage container 5 to 1B.

  By the way, in order to carry the powder into the first region 1A of the closed casing 1, for example, a carry-in container 11 shown in FIGS. 8 to 10 is used. The carry-in container 11 has the same configuration as the above-described storage container 5, and has a carry-in container main body 11A corresponding to the storage container main body 5A and a lid portion 11B corresponding to the lid portion 5B. The carrying-in container main body 11A is provided with an opening 11Aa similarly to the storage container main body 5A. In addition, the first region 1 </ b> A of the closed casing 1 is provided with a carry-in hole 12 communicating with the closed casing 1. The carry-in hole 12 is closed and opened while maintaining airtightness by a carry-in door 13 configured similarly to the above-described door 4. The loading door 13 is swingably provided by a shaft 13 a similar to the shaft 4 a of the door 4, and opens and closes the loading hole 12. The opening and closing of the loading door body 13 is performed in the first area 1A. The detailed configuration of the carry-in container 11 and the carry-in door body 13 is the same as that of the storage container 5 and the door body 4, and thus the description is omitted.

  Then, as shown in FIG. 8, in a state where the carry-in hole 12 is kept airtight by the carry-in door body 13 and closed, as shown in FIG. The opening 11Aa of the carry-in container body 11A of the carry-in container 11 is communicated with the carry-in container body 11A while maintaining airtightness with respect to the wall of the closed casing 1, which is the outer peripheral portion of the carry-in hole 12. Next, as shown in FIG. 10, the lid 11B for opening and closing the opening 11Aa of the carry-in container body 11A while maintaining the airtightness, and the carry-in door 13 are both opened from the first area 1A. Next, the powder stored in the carry-in container body 11A is collected from the first area 1A. Next, as shown in FIG. 9, the lid 11B is closed together with the carry-in door 13 in the first area 1A. Next, the carry-in container 11 is removed from the wall of the closed casing 1 outside the closed casing 1.

  As described above, the powder handling apparatus according to the present embodiment includes the first casing 1A and the second casing 1B that maintain the hermeticity of the closed casing 1 and the internal space of the closed casing 1 that are isolated from the outside air. And a door body 4 that opens the through hole 3 provided in the airtight wall 2 while closing the through hole 3 while maintaining the airtightness, and an opening that can communicate with the through hole 3. The portion 5Aa maintains the airtightness with respect to the airtight wall 2 which is the outer peripheral portion of the through hole 3 and maintains the airtightness of the storage container main body 5A attached in the second region 1B and the opening 5Aa of the storage container main body 5A. The lid 5B opens the opening 5Aa integrally with the door 4 with the opening of the door 4 from the first area 1A while the storage container main body 5A is attached to the airtight wall 2 while being closed. Container 5, a pneumatic element 6 for housing the storage container 5, and a closed housing from the second region 1B. Comprises a felt feeding facility 7 conveyed between the pneumatic tube carrier 6 via a pneumatic tube 7A provided through the outside and the second region 1B and outside the closed casing 1.

  According to the powder handling apparatus and the powder handling method, the powder is stored in the storage container 5 while preventing the powder from adhering to the outer surfaces of the storage container body 5A and the lid 5B of the storage container 5 in the first area 1A. Then, the storage container 5 is accommodated in the pneumatic element 6 in the second area 1B and transported by the pneumatic equipment 7. Therefore, when the powder that may contain a radioactive substance is transported by the pneumatic equipment 7, it is possible to prevent the pneumatic equipment 7 from being contaminated with the radioactive substance due to the adhesion of the powder.

  Further, in the powder handling apparatus of the present embodiment, the transfer facility seals the storage container 5 with the second area 1B via the air supply pipe 7A provided from the second area 1B to the outside of the closed casing 1. It is preferable to be a pneumatic facility 7 for transporting between the outside of the housing 1.

  According to this powder handling apparatus, the storage container 5 can be easily transported by the pneumatic equipment 7.

  Further, the powder handling apparatus of the present embodiment includes the pneumatic element 6 transported by the pneumatic equipment 7, and the storage container 5 is provided so as to be able to be accommodated in the pneumatic element 6.

  According to the powder handling apparatus, the storage container 5 is housed in the pneumatic element 6, so that the storage container 5 can be transported using the pneumatic element 6 in the pneumatic equipment 7.

  Further, in the powder handling apparatus of the present embodiment, the storage container 5 is configured as a pneumatic element 6 conveyed by the pneumatic equipment 7.

  According to this powder handling device, by configuring the storage container 5 itself as the pneumatic element 6, the number of components can be reduced and the handling of the powder can be facilitated.

  Further, in the powder handling apparatus of the present embodiment, the storage container 5 is fitted with the storage container main body 5A maintaining the airtightness to the airtight wall 2 by the rotational movement around the opening 5Aa. The configuration is such that the portion 5B is kept airtight with respect to the door body 4 by the rotational movement of the storage container body 5A and is integrated therewith.

  FIG. 11 is a plan sectional view of another example of the powder handling apparatus according to the present embodiment. In the above-described embodiment, the access from the outside to the inside of the closed casing 1 is made via the glove 10, but is not limited to this. For example, as shown in FIG. 11, a robot such as a manipulator 14 which can be directly operated from the outside of the closed casing 1 may be used. When it is difficult to handle the powder with the glove 10 at a high dose, the manipulator 14 can be used to handle the high dose of the powder. In the powder handling apparatus of the present embodiment, the operation of installing the storage container 5 in the first area 1A while maintaining the airtightness is performed together with the operation of integrating the lid 5B with the door body 4. Since it is only an easy operation, it can be handled by the manipulator 14 and is effective when the powder has a high dose.

  In the above-described powder handling apparatus, the pneumatic equipment 7 is mainly described as the transfer equipment, but is not limited to the pneumatic equipment 7. As the transfer equipment, for example, in addition to the pneumatic equipment 7, an air pallet floating on the floor by injecting compressed air onto the floor, or a belt itself or a tray by circulating an endless belt or chain is used. It may be a conveyor to be moved, a truck having tires that roll on the floor, or the like. In these cases, although not explicitly shown in the drawings, a delivery port 12 corresponding to the loading hole 12 is provided on the peripheral wall of the second region 1B of the closed casing 1 so as to deliver the storage container 5 to an air pallet, a conveyor, a cart, or the like. A hole and an unloading door corresponding to the unloading door 13 that opens and closes the unloading hole are provided.

DESCRIPTION OF SYMBOLS 1 Closed housing 1A 1st area 1B 2nd area 2 Hermetic wall 3 Through-hole 4 Door 4a Axis 5 Storage container 5A Storage container main body 5Aa Opening 5B Lid 6 Pneumatic element 6a Fin 7 Pneumatic equipment (transport equipment)
7A Pneumatic tube 7B Housing

Claims (5)

The internal space cut off from the outside air is an airtight wall, and uses a sealed housing divided into two while maintaining airtightness in the first area and the second area,
The through-hole provided in the airtight wall is closed while maintaining airtightness by a door body,
Said container body to maintain the airtightness against the hermetic wall is a peripheral portion of the second when the communicating opening of the container body of the container relative to the through-holes in a region, both the through hole Attached
The lid and the door that open and close the opening of the storage container body while maintaining the airtightness are both opened from the first region,
A powder that may contain a radioactive substance is stored in the storage container body from the first region,
Closing the lid together with the door in the first area,
In the second area, remove the storage container from the airtight wall,
The storage container is transported from the second area to the outside of the closed casing by a transfer facility provided from the second area to the outside of the closed casing,
A powder handling method, characterized in that: The transfer equipment is configured to transfer the storage container between the second area and the outside of the closed casing via a pneumatic pipe provided from the second area to the outside of the closed casing. The powder handling method according to claim 1, wherein the method is a feeding facility. The powder handling method according to claim 2, further comprising a pneumatic element transported by the pneumatic equipment, wherein the storage container is provided so as to be accommodated in the pneumatic element. The powder handling method according to claim 2, wherein the storage container is configured as a pneumatic element conveyed by the pneumatic equipment. The storage container is fitted in the storage container body while maintaining the airtightness with respect to the airtight wall by the rotational movement of the storage container body around the opening, and the lid is rotated by the storage container body. The powder handling method according to any one of claims 1 to 4, wherein the method is configured to be integrated with the door body while maintaining airtightness.

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