JP2016065804A - Suction recovery device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction recovery device capable of recovering a recovery object, such as debris, by remote operation.SOLUTION: The suction recovery device is provided with: a recovery part 2 that has a suction part 4 for suctioning a recovery object 12 and a storage part 6 for storing the recovery object 12 sucked by the suction part 4; a support part 3 that supports the recovery part 2 so as to be in a hung state; and an operation part that can remotely operate the recovery part 2. The suction part 4 has an exhaust part 43 for exhausting sucked air to the outside of the recovery part 2. The exhaust part 43 has an exhaust direction adjustment mechanism for adjusting a direction of the recovery part 2 by adjusting an exhaust direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a suction recovery device for suctioning and recovering an object to be recovered such as debris by remote control.

  While three years have passed since the hydrogen explosion at the Fukushima Daiichi nuclear power plant, and the decommissioning work for the nuclear power plant is underway, there are still many places where debris scattered at the time of the explosion is left unattended. For this reason, development of an apparatus capable of recovering rubble containing radioactive material left in such a place is underway (see, for example, Patent Document 1).

JP 2013-160605 A

  In areas with high radiation doses, it is difficult for workers to collect rubble directly on site because of the risk of exposure. For this reason, development of the apparatus which can collect | recover objects to be collected, such as rubble, by remote control is desired.

  Therefore, an object of the present invention is to provide a suction recovery device that can recover an object to be recovered such as debris by remote control.

  In order to achieve the above object, a suction and recovery apparatus according to the present invention includes a recovery unit having a suction part that sucks the object to be recovered and a storage part that stores the object to be recovered sucked by the suction part; It is characterized by comprising a support part for supporting the part in a suspended state, and an operation part capable of remotely operating the recovery part.

In the present invention, the collection unit supported in a state of being lifted by the support unit can be remotely operated by the operation unit, so that the operator can collect the collection object such as rubble by remote operation without directly collecting the collection item. The recovered material can be recovered.
In addition, since the collection unit is supported in a suspended state, the collection unit travels on a collection surface such as the ground where the collection object is scattered or is installed on the collection surface. In comparison, there is less interference with obstacles. For this reason, even if it is remote control, operation of a recovery part can be performed easily and a to-be-collected object can be recovered efficiently.

Further, in the suction recovery device according to the present invention, the suction part has an exhaust part for exhausting the sucked air to the outside of the recovery part, and the exhaust part adjusts an exhaust direction so that the direction of the recovery part is adjusted. It is preferable to have an exhaust direction adjusting mechanism for adjusting the exhaust gas.
By setting it as such a structure, the direction of a collection | recovery part can be adjusted using exhaust_gas | exhaustion. For this reason, it is not necessary to provide a mechanism for adjusting the direction of the recovery unit in the suction recovery device, and the structure can be simplified.

In the suction recovery apparatus according to the present invention, the suction unit includes a suction duct having a suction port for sucking the object to be collected. The suction duct includes a plurality of short pipes connected in the axial direction and adjacent to the suction duct. The short tube is configured to be relatively rotatable around a rotation axis perpendicular to the axis, and the short tube adjacent to one side in the axial direction of the short tube and the short tube adjacent to the other side However, it is preferable to have flexible tube portions that are different from each other in the direction of rotation with respect to the short tube.
By setting it as such a structure, a flexible pipe part can be made into a desired shape by rotating the adjacent short pipe relatively. For this reason, the suction duct can be bent along the collection surface when the collection surface such as the ground on which the collection object is scattered is inclined or the collection surface is uneven. Thereby, the suction port of the suction duct can be surely reached in the vicinity of the object to be collected, and a heavy object to be collected or a large object to be collected can be reliably sucked. Further, it is possible to prevent the suction duct from being deformed or damaged due to contact with irregularities on the collection surface or obstacles on the collection surface.

In the suction recovery apparatus according to the present invention, it is preferable that the suction duct has an expansion / contraction tube portion that can extend and contract in the axial direction at an end portion on the suction port side.
With this configuration, the length of the telescopic tube is adjusted according to the object to be collected and the unevenness of the collection surface, etc., so that the operator can perform suction without fine adjustment of the position of the suction port. The mouth can be placed in an optimal position. Further, it is possible to prevent the suction duct from being deformed or damaged due to irregularities on the collection surface or obstacles on the collection surface.

In the suction recovery apparatus according to the present invention, it is preferable that the suction duct has a flange that protrudes radially outward from the outer peripheral surface in the vicinity of the suction port.
If air is sucked from the suction port to the rear side (the end opposite to the side where the suction port of the suction duct is located), the front side of the suction port (the side where the object is to be collected) The suction force for sucking the area is reduced.
Therefore, in the present invention, it is possible to prevent the air in the area behind the flange from flowing around and being sucked by the flange. For this reason, it is possible to secure a suction force for sucking a region in front of the suction port, and it is possible to reliably suck the object to be collected.
Also, compared to the case where air in the area behind the suction port wraps around and is sucked, the required suction force can be set smaller, and the means for generating the suction force can be reduced in size and cost. Can be achieved.

In the suction recovery apparatus according to the present invention, it is preferable that a convex portion protruding toward the suction port is formed on the flange.
By adopting such a configuration, even when suction is performed in a state where the surface of the flange and the recovery surface such as the ground face each other, a gap is formed between the surface of the flange and the recovery surface by the convex portion. It is possible to prevent the surface and the recovery surface from adsorbing.

Moreover, in the suction collection device according to the present invention, it is preferable that a removable brush is provided in the vicinity of the suction port of the suction duct.
By adopting such a configuration, even when the object to be collected adheres to the collecting surface or when the object to be collected is fine, such as sand, the object to be collected is rubbed away from the collecting surface with a rotating brush. Since the collected object can be swept out, the collected object can be reliably sucked and collected.

In the suction recovery apparatus according to the present invention, it is preferable that the suction part has a damper that can communicate the inside and outside of the suction path in the middle of the suction path.
By adopting such a configuration, it is not necessary to suddenly stop the means for generating the suction force of the suction portion in the event of an emergency or when it is likely to be sucked or sucked up an object that does not need to be sucked. The suction force can be reduced or the suction can be stopped.
In particular, when the means for generating the suction force is a large fan or the like, it is difficult to stop suddenly. Therefore, the suction force can be reduced or the suction can be stopped without stopping the large fan.

Moreover, in the suction recovery apparatus according to the present invention, the recovery unit includes a selection unit that selects the collection object sucked by the suction unit, and the selection unit is configured to collide the collection object from the side. A collision sorting unit that causes the object to be collected, which is dropped due to the impact of the collision, to fall into the housing unit disposed below, and allows the material to be collected that has not fallen to the housing part to pass through. It is preferable to include a filter sorting unit that passes the collected material that has passed through the collision sorting unit and sorts the collected material with a predetermined particle size.
By adopting such a configuration, it is possible to sort and store relatively large and heavy items such as debris among the collected items by the collision sorting unit, and filter fine items such as dust. It can be sorted and accommodated in the section. And since the to-be-collected object is sorted and accommodated by the size, the accommodated to-be-collected object can be easily processed.
Further, as compared with a case where a relatively large or heavy object to be collected passes through the filter sorting unit, the filter of the filter sorting unit is less clogged, and the number of times the filter is cleaned can be reduced.

Moreover, in the suction recovery apparatus according to the present invention, it is preferable that the storage portion of the storage portion is covered with a shielding material that shields radiation.
With such a configuration, when a radioactive substance is contained in the object to be collected accommodated in the accommodating part, even if the worker approaches the accommodating part, the exposure of the worker can be reduced.

In the suction recovery apparatus according to the present invention, it is preferable that the recovery unit includes a watering unit that sprays water on the collection object stored in the storage unit.
By setting it as such a structure, when dust is contained in the to-be-collected object accommodated in the accommodating part, the spreading | diffusion of this dust can be prevented.

In the suction collection device according to the present invention, the collection unit includes a camera capable of photographing the collection unit and the object to be collected, and an operator operating the operation unit visually recognizes an image photographed by the camera. It is preferable that the configuration is possible.
With this configuration, the collection unit can be reliably operated while the operator confirms the image.

According to the present invention, the collection unit supported in a state of being lifted by the support unit can be remotely operated by the operation unit, so that the operator can collect the collection object directly, without remote collection of rubble, etc. Can be recovered.
In addition, since the collection unit is supported in a suspended state, the collection unit travels on a collection surface such as the ground where the collection object is scattered or is installed on the collection surface. In comparison, there is less interference with obstacles. For this reason, even if it is remote control, operation of a recovery part can be performed easily and a to-be-collected object can be recovered efficiently.

It is a side view showing an example of a suction collection device by an embodiment of the present invention. FIG. 2 is a top view of FIG. 1. It is a front view of FIG. It is a rear view of FIG. (A) is a figure explaining a 1st suction duct, (b) is a figure explaining the 1st suction duct curved rather than (a). It is a figure explaining a rotation brush. (A) is the figure which looked at the short tube from the side, (b) is a D direction arrow line view of (a). It is a figure explaining rotation of the 1st suction duct. (A) is a figure explaining the damper which has opened the opening part for dampers, (b) is a figure explaining the damper which has closed the opening part for dampers. (A) is a top view of a pleated bag filter, (b) is a front view of (a), (c) is a figure explaining a frame. It is a front view of a HEPA filter. It is a figure explaining the fixed surface and flat bar of a HEPA filter.

Hereinafter, a suction recovery apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 12.
As shown in FIGS. 1 to 4, the suction collection device 1 according to the present embodiment is a device that sucks and collects an object to be collected 12 such as rubble scattered on the ground (collection surface) 11 in a high radiation dose region. The collection unit 2 that sucks and collects the object 12 to be collected, the support unit 3 that supports the collection unit 2 suspended by a lifting means (not shown) such as a crane, and the collection unit 2 are remotely operated. A possible operation unit (not shown).

The collection unit 2 accommodates the suction unit 4 that sucks the collection target 12, the sorting unit 5 that sorts the collection target 12 sucked by the suction unit 4, and the collection target 12 sorted by the sorting unit 5. It has the accommodating part 6, the water sprinkling part 7 which sprinkles the to-be-collected object 12 accommodated in the accommodating part 6, and the imaging | photography part 8 which image | photographs the to-be-collected to-be-collected 12 and the collection | recovery part 2.
Here, the direction of the arrow A in FIG. 1 will be referred to as the front-rear direction, the direction of the arrow B will be referred to as the up-down direction, and the direction orthogonal to the paper surface of FIG.

The suction part 4 includes a first suction duct (suction duct) 41 having a suction port 4a for sucking the collection object 12, a second suction duct 42 connected to the first suction duct 41, and a second suction duct 42. An exhaust unit 43 that is connected and exhausts air inside the first suction duct 41 and the second suction duct 42 to the outside of the recovery unit 2 to generate suction force in the first suction duct 41 and the second suction duct 42; have.
Here, the side where the suction port 4a of the suction part 4 is located is the upstream side, and the side where the exhaust part 43 is located is the downstream side.

  As shown in FIGS. 1 and 3, the first suction duct 41 has a suction port 4 a and is capable of expanding and contracting in the axial direction, and is connected to the downstream side of the expanding and contracting tube part 110 and can be flexibly bent. The flexible pipe part 120, the first pipe part 130 connected to the downstream side of the flexible pipe part 120, the upstream side is connected to the downstream side of the first pipe part 130, and the downstream side is connected to the second suction duct 42. And a second pipe part 140.

  When the first suction duct 41 is supported by the support unit 3 in a state in which the collection unit 2 is suspended, and the collected object 12 can be collected, the telescopic tube unit 110 and the flexible tube unit 120 are connected to the ground 11. It is comprised so that it may contact | abut. The first suction duct 41 is configured such that the first tube portion 130 and the second tube portion 140 are disposed above the telescopic tube portion 110 and the flexible tube portion 120 and hang down from the second suction duct 42. .

As shown in FIGS. 1, 3, and 5, the telescopic tube portion 110 includes a first tube body 111 in which the suction port 4 a is formed and a second tube body 112 connected to the flexible tube portion 120. doing.
The outer diameter of the first tubular body 111 and the inner diameter of the first tubular body 111 are formed to have substantially the same dimensions, and the axial length of the first tubular body 111 and the axial length of the first tubular body 111 are substantially the same. Dimension is formed.
When the first tubular body 111 is coaxially inserted into the second tubular body 112, the outer peripheral surface is in contact with the inner peripheral surface of the second tubular body 112 or is opposed with a slight gap. In this state, the first tubular body 111 and the second tubular body 112 are configured to be relatively slidable in the axial direction.

The telescopic tube portion 110 is in a contracted state when the first tube body 111 overlaps the inside of the second tube body 112, and the first tube body 111 slides upstream with respect to the second tube body 112. When the vicinity of the end on the upstream side of the second tubular body 112 overlaps with the vicinity of the end on the downstream side of the first tubular body 111, the stretched state is obtained.
The telescopic tube portion 110 expands and contracts according to an axial external force acting on at least one of the first tube body 111 and the second tube body 112. When the telescopic tube portion 110 is lifted and separated from the ground 11, the first tubular body 111 slides downward (upstream) with respect to the second tubular body 112 due to gravity and enters an extended state.

In the present embodiment, as shown in FIG. 5, the first tubular body 111 has a flange 113 that protrudes radially outward from the outer peripheral surface 111a in the vicinity of the suction port 4a. The flange 113 is formed in a disk shape in which a hole having the same diameter as the outer diameter of the first tubular body 111 is formed at the center. The outer edge portion of the flange 113 is formed in a substantially arc shape in which a cross-sectional shape by a plane including the shaft protrudes outward.
Further, the flange 113 is formed with a convex portion 114 projecting upstream from the upstream end surface 113a. In the present embodiment, the convex portions 114 are formed in a hemispherical shape that curves to the protruding side, and four convex portions 114 are provided at 90 ° intervals in the radial direction of the flange 113.

  In the present embodiment, the rotating brush 115 is detachable on the upstream side of the flange 113. The rotating brush 115 includes a substantially annular brush body 116 and a rotating mechanism 117 that rotates the brush body 116. The rotation mechanism 117 may be configured to rotate the rotating brush 115 using an electric motor, for example, or may be configured to rotate the rotating brush 115 using the suction force of the suction unit 4.

Returning to FIG. 5, the flexible tube portion 120 has a plurality of short tubes 121, 121... Connected in the axial direction. The plurality of short pipes 121, 121... Are made of, for example, steel pipes.
As shown in FIG. 7, the short pipe 121 includes a large diameter portion 122 disposed on one side in the axial direction, a small diameter portion 123 disposed on the other side in the axial direction, a large diameter portion 122, and a small diameter portion 123. And a connecting portion 124 for connecting the two. Both the large diameter portion 122 and the small diameter portion 123 are formed in a cylindrical shape. The inner diameter of the large diameter portion 122 is set to be larger than the outer diameter of the small diameter portion 123.
The connecting portion 124 is formed such that the outer diameter and inner diameter on one side in the axial direction are substantially the same as the outer diameter and inner diameter of the large diameter portion 122, and the outer diameter and inner diameter on the other side in the axial direction are the outer diameter of the small diameter portion 123. And it is formed in the taper-shaped cylinder formed in the dimension substantially the same as an internal diameter. The taper of the connecting portion 124 is formed on the entire axial direction of the connecting portion 124.
The large diameter portion 122, the small diameter portion 123, and the connecting portion 124 are joined and integrated by welding, for example.
And the short pipe 121 is arrange | positioned so that the large diameter part 122 may become an upstream rather than the small diameter part 123. FIG.

The short pipes 121 and 121 adjacent in the axial direction are arranged so that the large diameter part 122 of the downstream short pipe 121 overlaps the outside of the small diameter part 123 of the upstream short pipe 121, and these short pipes 121 and 121. Is configured to be relatively rotatable about a rotation shaft 125.
The rotation shaft 125 is a virtual axis, and extends in a direction orthogonal to the axis of the short tube 121 in a region where the adjacent short tubes 121 and 121 overlap.
In the present embodiment, among the short tubes 121 and 121 adjacent to each other in the axial direction, the small diameter portion 123 of the upstream short tube 121 and the large diameter portion 122 of the downstream short tube 121 are opposed to each other on the rotation shaft 125. The two are connected by a coupling tool 126 (see FIG. 5) such as a pin so as to be relatively rotatable about the rotation shaft 125.

  The adjacent short pipes 121 and 121 are coaxial, and the boundary portion 123a with the connecting portion 124 of the small diameter portion 123 of the upstream short tube 121 is upstream of the large diameter portion 122 of the downstream short tube 121. It arrange | positions upstream from the edge part 122a of the side. The adjacent short pipes 121 and 121 that rotate relative to each other about the rotation shaft 125 have an upstream end 122a of the large-diameter portion 122 of the downstream short pipe 121 and an upstream short pipe 121. The small diameter portion 123 or the connecting portion 124 is brought into contact with the outer peripheral surface so that the rotation is stopped.

Further, when the three short pipes 121, 121, 121 connected in the axial direction are defined as the first short pipe 121A, the second short pipe 121B, and the third short pipe 121C from the upstream side toward the downstream side, the first short pipe The first rotating shaft 125A of 121A and the second short tube 121B and the second rotating shaft 125B of the second short tube 121B and the third short tube 121C are viewed from the axial direction of the second short tube 121B. It is 90 ° different.
Therefore, the direction in which the first short tube 121A can rotate with respect to the second short tube 121B and the direction in which the third short tube 121C can rotate with respect to the second short tube 121B are the second short tube. It is 90 ° different from the axial direction of 121B.
In the state where the plurality of short tubes 121, 121... Are connected in the axial direction, the first rotating shaft 125A and the second rotating shaft 125B are alternately arranged in the axial direction.

In such a flexible tube portion 120, the adjacent short tubes 121, 121 are relatively rotated and deformed in accordance with an external force acting on each of the plurality of short tubes 121, 121.
Thereby, when the flexible pipe part 120 is disposed on the ground 11, it is deformed into a shape along the shape of the ground 11.

Returning to FIG. 1, the first pipe portion 130 is formed so as to have the same diameter in the entire axial direction, and has the bent portions 131 and 132 on the upstream side and the downstream side, and the upstream bent portion 131 and the downstream side A straight portion 133 is provided between the bent portion 132. The upstream bent portion 131 and the downstream bent portion 132 are set to have substantially the same curvature.
The first pipe portion 130 is opened downward on the upstream side, and is bent by the bent portion 131 on the upstream side so that the axis thereof is directed backward toward the downstream side and is inclined upward. The straight portion 133 extends in this oblique direction.
Moreover, the 1st pipe part 130 is bent by the downstream bending part 132 so that the axis | shaft may become an up-down direction toward the downstream.
Moreover, in this embodiment, the 1st pipe part 130 is suspended and supported by the support part 3 from upper direction.
This reduces the weight of the first tube portion 130, the flexible tube portion 120, and the telescopic tube portion 110 applied to the second tube portion 140, and reduces the weight of the first suction duct 41 applied to the second suction duct 42. I am letting.

  The second pipe portion 140 is formed so as to have the same diameter in the entire axial direction, and has a linear portion 141 whose axis extends in the up-down direction on the upstream side and a bent portion 142 on the downstream side. The 2nd pipe part 140 is bent by the bending part 142 so that the axis | shaft may become the front-back direction toward the downstream.

In the present embodiment, a rotation mechanism 134 that allows the first tube portion 130 to rotate with respect to the second tube portion 140 about the axis of the straight portion 141 of the second tube portion 140 is provided. The rotation mechanism 134 is configured to rotate the first tube portion 130 using, for example, an electric motor.
As a result, as shown in FIG. 8, the first pipe portion 130 has the axis of the straight portion 141 of the second pipe portion 140 together with the flexible tube portion 120 and the telescopic tube portion 110 upstream of the first tube portion 130. It can be rotated around the center.
The rotation of the first tube unit 130 is configured to be remotely operable from the operation unit.

Returning to FIG. 1, the second suction duct 42 is provided with the sorting unit 5 inside. Further, the second suction duct 42 has a damper opening 42 a that communicates the inside and the outside with an intermediate portion of the suction path, and a storage portion for introducing the collected object 12 sorted by the sorting portion 5 into the housing portion 6. The opening 42b for use is formed.
The damper opening 42 a is configured to be opened and closed by the damper 150.
The accommodating portion opening 42b is open in the vertical direction, and the accommodating portion 6 is provided below the accommodating portion opening 42b.

As shown in FIGS. 1, 2, and 9, the damper 150 includes a door portion 151 that can open and close the damper opening 42 a and an air cylinder 152 that opens and closes the door portion 151.
The door 151 can be opened and closed remotely from the operation unit.

In such a damper 150, the damper opening 42 a is normally closed by the door 151, and the damper 150 is operated by operating the air cylinder 152 in an emergency when the suction of the suction part 4 is to be stopped suddenly. 42a can be opened.
In the present embodiment, two damper openings 42a and 42a are formed in the second suction duct 42, and a door 151 and an air cylinder 152 are provided for the two damper openings 42a and 42a, respectively.

  As shown in FIGS. 1, 2, and 4, the exhaust unit 43 includes an exhaust duct 161 connected to the second suction duct 42, a first exhaust fan 162 that exhausts the exhaust duct, and a second exhaust fan 163. The first direction adjustment pipe part 164 and the second direction adjustment pipe part 165 connected to the downstream side of the exhaust duct 161 and capable of adjusting the exhaust direction, and the exhaust of the first direction adjustment pipe part 164 and the second direction adjustment pipe part 165 An exhaust direction adjusting mechanism (not shown) that can adjust the direction.

The first exhaust fan 162 and the second exhaust fan 163 generate suction force in the first suction duct 41 and the second suction duct 42 by exhausting the exhaust duct 161.
Air exhausted by the first exhaust fan 162 is exhausted from the first direction adjustment pipe part 164 to the outside of the recovery part 2, and air exhausted by the second exhaust fan 163 is recovered from the second direction adjustment pipe part 165. The unit 2 is configured to be discharged to the outside.

The first direction adjusting pipe portion 164 and the second direction adjusting pipe portion 165 are formed with a bent portion 167 whose axis is bent by approximately 90 ° on the downstream side, and a straight portion extending in the front-rear direction on the upstream side of the bent portion 167. 168 is formed. The first direction adjusting pipe portion 164 and the second direction adjusting pipe portion 165 are configured such that the upstream side is connected to the exhaust duct 161, the downstream side is open, and air is discharged to the outside from the opening on the downstream side. Yes.
The first direction adjustment pipe part 164 and the second direction adjustment pipe part 165 are arranged at an interval in the horizontal direction.

Further, the first direction adjustment pipe part 164 and the second direction adjustment pipe part 165 are configured to be rotatable around an axis extending in the front-rear direction on the upstream side with respect to the exhaust duct 161. The exhaust direction adjustment mechanism has means for rotating (rotating) the first direction adjustment pipe part 164 and the second direction adjustment pipe part 165, respectively, and the first direction adjustment pipe part 164 and The second direction adjusting pipe portion 165 is rotated to adjust its exhaust direction.
The first direction adjustment pipe part 164 and the second direction adjustment pipe part 165 are configured such that the exhaust directions are individually adjusted. Then, the exhaust direction adjustment mechanism adjusts the exhaust direction of the first direction adjustment pipe part 164 and the exhaust direction of the second direction adjustment pipe part 165 by remote operation of the operation part, so that the collection unit 2 in a suspended state. Is configured to be adjusted.
In addition, the exhaust direction adjusting mechanism includes an exhaust amount exhausted from the first direction adjusting pipe part 164 and the second direction adjusting pipe part 165 together with the exhaust direction of the first direction adjusting pipe part 164 and the second direction adjusting pipe part 165. May be configured to adjust.

  As shown in FIG. 1, the sorting unit 5 causes the collection object 12 sucked into the second suction duct 42 to collide with the collision plate 51 from the front, and causes the collection object 12 that falls due to the impact of the collision to be opened in the storage unit. The collision sorting unit 52 that drops from the portion 42b to the storage unit 6 and passes the collection target 12 that has not fallen to the storage unit 6, and the collection target 12 that has passed through the collision selection unit 52 pass through to a predetermined particle size. And a filter sorting unit 53 for sorting the objects to be collected 12.

  The collision plate 51 is disposed downstream of the upstream end portion of the second suction duct 42 on the downstream side of the upstream end portion of the second suction duct 42. And the collision board 51 is arrange | positioned so that the collision surface with which the to-be-collected object 12 collides faces the front. Thereby, the to-be-recovered object 12 which flowed into the 2nd attraction | suction duct 42 from the 1st suction duct 41 collided with the collision board 51 from the front, and the to-be-recovered object 12 which collided with the collision board 51 falls with the impact of a collision. Note that the collision plate 51 is not formed with a hole through which air or the object to be collected 12 can pass.

In this embodiment, the direction of the suction force generated inside the second suction duct 42 is directed from the upstream side to the rear collision plate 51 in order from the upstream side as indicated by the arrow C in FIG. It is set in a direction from the lower side to the lower side, toward the rear at the slightly upper side of the opening 42b for the accommodating portion, and toward the upper side at the downstream side.
Then, the suction force in the rearward direction slightly above the accommodating portion opening 42b intersects the dropping path of the collection object 12 that collides with the collision plate 51 and falls. For this reason, for example, the to-be-recovered object 12 whose weight is comparatively small, whose weight per volume is small, or whose surface area is large moves to the back side by the suction force. Therefore, the to-be-recovered object 12, which has a relatively large weight, a large weight per volume, or a small surface area, falls and passes through the accommodating portion opening 42b of the second suction duct 42 to the accommodating portion 6. The to-be-recovered object 12 that is accommodated and has a relatively small weight, a small weight per volume, or a large surface area passes through the collision sorting unit 52 and flows into the filter sorting unit 53. .

The filter selection unit 53 includes a pleated bag filter 171 disposed on the upstream side and a HEPA filter 172 disposed on the downstream side.
The pleated bag filter 171 captures the object 12 having a relatively large particle size, and the HEPA filter 172 is configured to capture the object 12 having a relatively small particle size that has passed through the pleated bag filter 171. Has been.

As shown in FIG. 10, the pleated bag filter 171 is formed in a cylindrical shape, and in the present embodiment, the pleated bag filter 171 is arranged in a direction in which the axial direction is the vertical direction. In the present embodiment, ten pleated bag filters 171, 171,... Are arranged at the same height, two in the front-rear direction and five in the lateral direction.
These ten pleated bag filters 171, 171... Are unitized by fixing their upper ends to the same frame 173 with a fixture such as a bolt. For this reason, by moving the frame body 173, ten pleat type bag filters 171, 171... Can be attached and detached at a time.
The air containing the to-be-recovered object 12 passes through the pleated bag filters 171, 171,.

As shown in FIG. 11, the HEPA filter 172 is formed in a substantially rectangular plate shape, and in this embodiment, the surface is arranged in a direction facing the front-rear direction. In the present embodiment, nine HEPA filters 172, 172,... Are arranged on the same plane by 3 in the horizontal direction and 3 in the vertical direction.
These nine HEPA filters 172, 172... Are fixed to the fixed surface 174 so as to be pressed by the flat bar 175.

As shown in FIGS. 11 and 12, in this embodiment, the fixed surface 174 is disposed on the downstream side of the HEPA filter 172 (see FIG. 11), and the flat bar 175 is disposed on the upstream side of the HEPA filter 172.
The flat bar 175 is long in the horizontal width direction and has a longer dimension in the horizontal width direction than the HEPA filter 172. The flat bar 175 is joined with a bolt 176 protruding from the fixed surface 174 side.
The HEPA filter 172 is arranged so as to be sandwiched between the fixing surface 174 and the flat bar 175, and the bolt 176 protruding from the flat bar 175 is inserted into the hole formed in the fixing surface 174, whereby the HEPA filter 172 is fixed to the fixing surface. 174 is fixed.
For this reason, the HEPA filter 172 can be easily removed by removing the flat bar 175.

  Such HEPA filter 172 passes air containing the object to be collected 12 so as to intersect the surface. The air that has passed through the HEPA filter 172 is exhausted from the exhaust duct 161 to the outside of the recovery unit 2.

  As shown in FIGS. 1 and 3, the storage unit 6 includes a bucket (container) 61 that stores the collection object 12, and the outside of the bucket 61 is covered with a shielding material 62 that shields radiation such as lead. ing. The storage unit 6 is configured to be detachable from the recovery unit 2, and when the object 12 to be collected inside the storage unit 6 is discarded, the storage unit 6 is removed from the recovery unit 2 and only the storage unit 6 is moved. It is possible to make it.

As shown in FIG. 1, the water sprinkling part 7 is disposed in the vicinity of the accommodating part opening 42 b in the second suction duct 42, and sprinkles the sprinkling nozzle 71 for sprinkling water toward the accommodating part 6. A water supply tank 72 for supplying water and a water supply pump 73 are provided.
Watering by the watering part 7 is comprised by the operation part so that remote control is possible.

The imaging unit 8 is arranged at the upper part of the first suction duct 41 and can capture a first camera 81 capable of photographing the first suction duct 41, and a second camera capable of photographing the vicinity of the suction port 4a of the first suction duct 41 and the ground 11. A camera 82 and a third camera 86 capable of photographing the inside of the housing 6 are provided. And the image | video which these cameras 81-83 image | photographed is comprised so that the operator (not shown) which operates an operation part can be visually recognized by the communication means (not shown).
The photographing of the cameras 81 to 83 is configured to be remotely operated by the operation unit.

  In addition, the imaging | photography part 8 may have lighting fixtures, such as LED light which illuminates the light to the target object which the cameras 81-83 image | photograph. The photographing unit 8 may have a moving mechanism that moves the cameras 81 to 83 within a predetermined range. When the imaging unit 8 includes a lighting fixture or a moving mechanism, the lighting fixture is turned on and off and the cameras 81 to 83 are configured to be remotely operable by the operation unit.

  In such a state where the suction collection device 1 is performing the operation of sucking the collection object 12, when adjusting the position of the suction port 4a of the first suction duct 41, the operation unit is remotely operated, While adjusting the exhaust direction of the one-direction adjusting pipe part 164 and the second direction adjusting pipe part 165 to adjust the position and orientation of the collection part 2, the first pipe part 130 of the first suction duct 41 is swung to turn The position of the suction port 4a of the one suction duct 41 is adjusted. In addition to these adjustments, the position and orientation of the collection unit 2 may be adjusted by remotely operating the lifting means.

  Next, the operation and effect of the suction recovery apparatus 1 according to the present embodiment will be described with reference to the drawings.

In the suction recovery apparatus 1 according to the present embodiment, the recovery unit 2 supported in a state of being lifted by the support unit 3 can be remotely operated by the operation unit, so that the operator directly recovers the object to be recovered 12. The object 12 can be recovered by remote control.
Further, since the collecting unit 2 is supported in a suspended state, the collecting unit 2 may interfere with an obstacle as compared with the case where the collecting unit 2 travels on the ground 11 or is installed on the ground 11. Few. For this reason, even if it is remote operation, the collection | recovery part 2 can be operated easily and the to-be-collected object 12 can be collect | recovered efficiently.

  Further, by having the exhaust direction adjusting mechanism, the direction of the collection unit 2 can be adjusted using exhaust. For this reason, it is not necessary to provide a mechanism for adjusting the direction of the collection unit 2 in the suction collection device 1, and the structure can be simplified.

The flexible tube portion 120 includes a plurality of short tubes 121, 121... Connected in the axial direction, and the adjacent short tubes 121, 121 are configured to be relatively rotatable around a rotation shaft 125. The first short pipe 121A adjacent to the upstream side of the second short pipe 121B and the third short pipe 121C adjacent to the downstream side are different from each other in the rotating direction with respect to the second short pipe 121B. A desired shape can be obtained. For this reason, when the ground 11 on which the collection object 12 is scattered is inclined or uneven is formed on the ground 11, the flexible tube portion 120 can be bent along the ground 11. Thereby, the suction port 4a of the first suction duct 41 can surely reach the vicinity of the object to be collected 12, and the heavy and large object to be collected 12 can be reliably sucked. In addition, deformation and damage of the flexible pipe portion 120 due to unevenness of the ground 11 or obstacles on the ground 11 can be prevented.
Moreover, even if the to-be-recovered objects 12, such as hard debris, pass, when the some short pipe 121,121 ... of the flexible pipe part 120 is comprised with the steel pipe, a deformation | transformation and damage of the flexible pipe part 120 can be prevented. . Further, even when the suction force is increased in order to suck the large object 12 with a large weight, it can be prevented from being crushed by the suction force like a resin tube.

  In addition, since the telescopic tube portion 110 of the first suction duct 41 is configured to be extendable and contractable in the axial direction, the length in the axial direction of the telescopic tube portion 110 is combined with the unevenness of the object to be collected 12 and the ground 11. Since the dimensions are adjusted, the suction port 4a can be arranged at an optimum position without the operator performing fine adjustment of the position of the suction port 4a. Further, it is possible to prevent the first suction duct 41 from being deformed or damaged due to unevenness of the ground 11 or obstacles on the ground 11.

The first suction duct 41 has a flange 113 that protrudes radially outward from the outer peripheral surface near the suction port 4a. And if the suction part 4 sucks the air of the area | region of the back side (end part side opposite to the side with the suction port 4a of the 1st suction duct 41) from the suction port 4a, the suction port The suction force for sucking the region in front of 4a (the side where the object 12 is to be collected) is reduced.
For this reason, in the present invention, the first suction duct 41 has the flange 113 protruding radially outward from the outer peripheral surface in the vicinity of the suction port 4a, thereby rearward of the flange 113 (rear side of the suction port 4a). It is possible to prevent the air in this area from being drawn around and sucked.
And in this invention, since the air of the area | region of the back side from the suction opening 4a can be prevented from wrapping around and attracting | sucking, the to-be-collected object 12 can be attracted | sucked reliably. Further, the required suction force can be set smaller than in the case where the air in the rear side of the suction port 4a is drawn and sucked, and the means for generating the suction force can be reduced in size and cost. Reduction can be achieved.

  Further, since the flange 113 is formed with a convex portion 114 that protrudes toward the suction port 4a, even if a suction force is generated with the surface of the flange 113 facing the ground surface 11, the convex portion is flanged. Since the surface of 113 and the ground 11 can be prevented from making surface contact, the surface of the flange 113 and the ground 11 can be prevented from being adsorbed.

  In addition, the first suction duct 41 has a rotary brush 115 detachable in the vicinity of the suction port 4a, so that the object to be collected 12 is fixed to the ground 11 or the object to be collected 12 is fine such as sand. Even in this case, the object to be collected 12 can be rubbed away from the ground 11 with the rotary brush 115 or the object to be collected 12 can be swept out, so that the object to be collected 12 can be reliably collected.

Further, the suction unit 4 has a damper 150 that can communicate with the inside and outside of the suction path in the middle of the suction path, thereby generating a suction force in an emergency or when it is about to suck something that does not need to be sucked. The suction force can be reduced or suction can be stopped without stopping the means suddenly.
In particular, when the means for generating the suction force is a large fan or the like, it is difficult to stop suddenly. Therefore, the suction force can be reduced or the suction can be stopped without stopping the large fan.

Further, the sorting unit 5 includes the collision sorting unit 52 and the filter sorting unit 53, so that the collision sorting unit 52 sorts relatively large and heavy items such as debris among the objects to be collected 12. The filter sorting unit 53 can sort and store fine objects such as dust. And since the to-be-collected object 12 is sorted and accommodated by size, the accommodated to-be-collected object 12 can be processed easily.
Further, the collision sorting unit 52 is not provided, and the pleated bag filter 171 of the filter sorting unit 53 is compared with a case where air including the relatively large or heavy object 12 passes through the filter sorting unit 53. In addition, the HEPA filter 172 is less clogged, and the number of cleanings of the filters 171 and 172 can be reduced.

  In addition, when the bucket 61 is covered with the shielding material 62 that shields radiation, the worker can receive the radioactive material in the collection object 12 stored in the storage unit 6. Even if it approaches 6, exposure of workers can be reduced.

  In addition, the collection unit 2 includes the water sprinkling unit 7 that sprinkles water on the collection object 12 accommodated in the accommodation unit 6, so that when the collection object 12 accommodated in the accommodation unit 6 includes dust, Dust diffusion can be prevented.

  In addition, the collection unit 2 includes a photographing unit 8 that can photograph the collection unit 2 and the object to be collected 12, and is configured so that an operator who operates the operation unit can visually recognize an image photographed by the photographing unit 8. Thus, the operator can reliably operate the collection unit 2 while confirming the image.

As mentioned above, although embodiment of the suction collection device by this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the above-described embodiment, the suction recovery device 1 sucks and recovers the object to be recovered 12 such as rubble scattered on the ground surface 11 in a high radiation dose area. May be other than the above.
In the above-described embodiment, the direction of the collection unit 2 is adjusted by the exhaust direction adjustment mechanism. However, the direction of the collection unit 2 may be adjusted by a mechanism other than the above.
Moreover, when the direction of the collection | recovery part 2 is adjusted with an exhaust direction adjustment mechanism, the number of the exhaust fans 162 and 163 and the number of direction adjustment pipe parts 164 and 165 may be set suitably.

Moreover, in said embodiment, although the 1st suction duct 41 is the structure which has the expansion-contraction pipe part 110, the flexible pipe part 120, the 1st pipe part 130, and the 2nd pipe part 140, it is a structure other than the above. Also good. In addition, the forms of the telescopic tube portion 110, the flexible tube portion 120, the first tube portion 130, and the second tube portion 140 may be other than the above. Moreover, the convex part 114 does not need to be formed in the flange 113, and the shape of the convex part 114 may be other than the above. Further, the flange 113 may not be provided.
In the above embodiment, the plurality of short pipes 121, 121... Of the flexible pipe 120 are made of steel pipes. However, the flexible pipe part 120 can be prevented from being deformed or damaged, and there seems to be no problem with strength. For example, it may be other than a steel pipe.
Moreover, it is good also as a structure by which the 1st suction duct 41 is arrange | positioned inside resin-made flexible pipes.
Further, the first suction duct 41 may have a configuration in which the rotating brush 115 is not attached.

Further, in the above embodiment, the damper 150 is provided, but such a damper 150 may not be provided. Moreover, when the damper 150 is provided, the number and position of the damper 150 may be set suitably.
Moreover, in said embodiment, although the selection part 5 is provided, it does not need to be provided. The sorting means such as the collision plate 51 and the filters 171 and 172 in the sorting unit 5 may be other than the above.

Moreover, in said embodiment, although the bucket 61 of the accommodating part 6 is coat | covered with the shielding material 62, when the shielding material 62 is not required, it does not need to be covered. The shielding material 62 may be made of a material other than lead.
Moreover, in said embodiment, although the water sprinkling part 7 is provided, it does not need to be provided. Moreover, the position where the water sprinkling part 7 is provided may be set as appropriate. Moreover, the some watering part 7 may be provided.
In the above embodiment, the cameras 81 to 83 are provided. However, the cameras 81 to 83 may not be provided. The position where the camera is provided and the number of cameras may be set as appropriate.

DESCRIPTION OF SYMBOLS 1 Suction collection device 2 Collection part 3 Support part 4 Suction part 4a Suction port 5 Sorting part 6 Storage part 7 Sprinkling part 8 Imaging part 11 Ground (collection surface)
12 Object 41 First suction duct (suction duct)
42 Second suction duct 43 Exhaust part 51 Collision plate 52 Collision sorting part 53 Filter sorting part 61 Bucket (container)
62 Shielding material 110 Telescopic tube portion 113 Flange 114 Convex portion 115 Rotating brush 120 Flexible tube portion 121 Short tube 125 Rotating shaft 150 Damper

Claims (12)

A recovery part having a suction part for sucking the object to be recovered and a storage part for storing the object to be recovered sucked by the suction part;
A support part for supporting the recovery part in a suspended state;
A suction recovery apparatus comprising: an operation unit capable of remotely operating the recovery unit. The suction part has an exhaust part for exhausting the sucked air to the outside of the recovery part,
The suction recovery apparatus according to claim 1, wherein the exhaust unit includes an exhaust direction adjustment mechanism that adjusts an exhaust direction to adjust a direction of the recovery unit. The suction part has a suction duct having a suction port for sucking the object to be collected;
The suction duct is configured such that a plurality of short pipes are connected in the axial direction, and the adjacent short pipes are rotatable relative to each other about a rotation axis orthogonal to the axis. The short tube adjacent to one side of the tube and the short tube adjacent to the other side have flexible tube portions that are different from each other in directions of rotation with respect to the short tube. Suction recovery device.   4. The suction recovery apparatus according to claim 3, wherein the suction duct has an expansion / contraction tube portion that can extend and contract in an axial direction at an end portion on the suction port side.   5. The suction recovery apparatus according to claim 3, wherein the suction duct has a flange protruding radially outward from an outer peripheral surface in the vicinity of the suction port.   The suction recovery device according to claim 5, wherein a convex portion that protrudes toward the suction port is formed on the flange.   The suction recovery apparatus according to any one of claims 3 to 6, further comprising a detachable rotary brush in the vicinity of the suction port of the suction duct.   The suction collection device according to any one of claims 1 to 7, wherein the suction unit includes a damper capable of communicating inside and outside the suction path in the middle of the suction path. The collection unit has a sorting unit for sorting the objects to be collected sucked by the suction unit,
The sorting unit causes the object to be collected to collide with a collision plate from the side, and causes the object to be collected, which is dropped due to the impact of the collision, to fall to the accommodation unit disposed below, and the accommodation unit A collision sorting section for passing the object that has not fallen to
9. A filter sorting unit that passes the collected material that has passed through the collision sorting unit and sorts the collected material with a predetermined particle size. The suction collection device according to 1.   The suction collection device according to any one of claims 1 to 9, wherein the container is configured such that a container that houses the object to be collected is covered with a shielding material that shields radiation.   The suction recovery device according to any one of claims 1 to 10, wherein the recovery unit includes a water sprinkling unit that sprinkles water on the collection object stored in the storage unit.   The collection unit includes a camera capable of photographing the collection unit and the object to be collected, and is configured so that an operator who operates the operation unit can visually recognize an image photographed by the camera. The suction collection device according to any one of claims 1 to 11.

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