JP5600908B2 - Method for removing harmful substance-containing member and apparatus for removing harmful substance-containing member - Google Patents

Description

  The present invention relates to a method for removing a harmful substance-containing member and a removal device for the harmful substance-containing member.

  As a method for removing harmful substance-containing members containing harmful substances such as asbestos and a device for removing harmful substance-containing members, for example, a bag body having an opening that can surround the hazardous substance construction surface is used. A method for removing a harmful substance-containing member, wherein an opening of a bag body is hermetically attached to an adjacent area of a hazardous substance construction surface so as to surround the surface, and the harmful substance is removed with a removal tool in the sealed bag body, and An apparatus for removing a harmful substance-containing member is known (see, for example, Patent Document 1).

Japanese Examined Patent Publication No. 3-68189

  However, when the hazardous substance construction surface is provided in a wide range, it is difficult to enclose hermetically so as to surround the hazardous substance construction surface. For this reason, when the hazardous substance construction surface is provided in a wide range, it is necessary to seal the entire space where the hazardous substance construction surface is provided, and there is a problem that enormous costs may be required. .

  This invention is made | formed in view of this subject, The place made into the objective is the removal method of the harmful substance containing member which can remove a harmful substance containing member at low cost, and a harmful substance containing member It is to provide a removal device.

In order to achieve such an object, the method for removing a harmful substance-containing member of the present invention is a method for removing a hazardous substance-containing member that removes a harmful substance-containing member attached to the outer peripheral surface of a work object. A covering member disposing step of covering a part in the circumferential direction so as to be visible and disposing a covering member forming a first working space on the outer peripheral surface, a first sealing step of sealing the first working space, and the first work A first removing step of removing the harmful substance-containing member in the space, and a covering member moving step of forming the second working space by arranging the covering member in another part different from a part of the outer peripheral surface; Removing the harmful substance-containing member, comprising: a second sealing step for sealing the second working space; and a second removing step for removing the harmful substance-containing member in the second working space. Is the method.
According to such a method for removing a harmful substance-containing member, in the first removal step, after sealing the first work space that covers a part in the circumferential direction of the outer peripheral surface of the work object so as to be visible by the cover member, Since the hazardous substance-containing member is removed in the first work space, the harmful substance-containing member can be removed without being scattered outside the first work space. At this time, the covering member covers a part of the outer peripheral surface of the work object in the circumferential direction to form a first work space, and only a predetermined area is sealed to form the first work space. Since the work scale is smaller than when working over the entire space containing the work object, the work is easy and the harmful substance-containing member can be removed at low cost.

  In addition, since the covering member that has formed the first work space is arranged in another part different from a part of the outer peripheral surface to form the second work space, the harmful substance-containing member is removed in the second work space. Even in the second work space, it is possible to remove the harmful substance-containing member without scattering it out of the second work space. Then, by removing the harmful substance-containing member while moving the work space such as the first working space and the second working space, the harmful substance-containing member can be removed in a wide region of the outer peripheral surface of the work object. Is possible. Furthermore, since the covering member is repeatedly used, it is possible to reduce the cost for removing the harmful substance-containing member.

In this method of removing a harmful substance-containing member, it is preferable that the work object is a long member connected in a predetermined direction.
In order to cover the entire long member in which the work object is connected in a predetermined direction, a cover member capable of forming a work space connected in the predetermined direction is necessary. For this reason, it is possible to reduce the work scale by removing the harmful substance-containing member in the working space in which a part in the circumferential direction of the outer circumferential surface of the long member is covered with the covering member so as to be visible. It is easy and can remove the harmful substance-containing member at low cost.

In this method of removing a harmful substance-containing member, the long member is a cylinder, and in the covering member moving step, the other member is moved by moving the covering member along a circumferential direction of the cylinder. It is desirable to arrange in this part.
According to such a method for removing a harmful substance-containing member, the work area can be moved in the circumferential direction of the cylinder by moving the covering member along the circumferential direction of the cylinder, It is possible to remove the harmful substance-containing member over the circumference.

In this method for removing a harmful substance-containing member, the covering member is formed to be stretchable along the circumferential direction of the cylindrical body, and one end side of the covering member is drawn toward the other end side in the circumferential direction. After being contracted, it is desirable that the other end is extended in a direction away from the one end.
According to such a method for removing a harmful substance-containing member, since the covering member is formed to be stretchable along the circumferential direction of the cylindrical body, a work space can be formed along the outer peripheral shape of the cylindrical body. It is possible to divert to work objects with different outer diameters. Moreover, since the cover member is extended in a direction in which the other end side is separated from the one end side after the one end side in the circumferential direction is drawn to the other end side and contracted, the working space can be sequentially moved along the circumferential direction. It is possible to remove the harmful substance-containing member in the region connected in the circumferential direction.

In this method of removing a harmful substance-containing member, the covering member is provided on the one end side or the other end side so as to protrude outward from the work space, and accommodates the removed harmful substance-containing member. It is desirable to have an accommodating member to be used.
According to such a method for removing a toxic substance-containing member, since the accommodating member that accommodates the removed toxic substance-containing member is provided on the cover member so as to protrude outward from the work space, it is removed. It is possible to quickly remove the harmful substance-containing member from the outer peripheral surface in the work space. For this reason, since work is not hindered by the removed harmful substance-containing member, workability is good. Further, since the housing member is provided on one end side or the other end side of the covering member, the housing member and the harmful substance-containing member housed in the housing member do not hinder the expansion and contraction of the covering member. For this reason, it is possible to provide a method for removing a harmful substance-containing member with good workability.

A method for removing a hazardous substance-containing member that removes a harmful substance-containing member attached to the outer peripheral surface of a work object, the cover member covering a part of the outer peripheral surface in the circumferential direction so as to be visible and forming a work space Covering member disposing step, sealing step for sealing the working space, removing step for removing the harmful substance-containing member in the working space, and a new covering different from the covering member. A cover member new installation step for forming a new work space by arranging a member in another portion different from a part of the outer peripheral surface, a new work space sealing step for sealing the new work space, and the new operation A method for removing a harmful substance-containing member, comprising: a new work space removing step for removing the harmful substance-containing member in the space.
According to such a method for removing a harmful substance-containing member, in the removing step, after sealing the work space that covers a part of the outer peripheral surface of the work object in the circumferential direction so as to be visible by the cover member, Therefore, the harmful substance-containing member can be removed without being scattered outside the work space. At this time, the covering member covers a part in the circumferential direction of the outer peripheral surface of the work object and forms a work space. Therefore, only a predetermined area is sealed to make the work space, and the entire work object or the work object Since the work scale is smaller than when working over the entire space containing objects, the work is easy and the harmful substance-containing member can be removed at low cost.

  In addition, a new cover member that is different from the cover member that formed the work space is arranged in another part different from a part of the outer peripheral surface to form a new work space, which contains harmful substances in the new work space. Since the member is removed, it is possible to remove the harmful substance-containing member simultaneously in the work space and the new work space. For this reason, it is possible to finish the operation | work which removes a toxic substance containing member in a short time.

In this method of removing a harmful substance-containing member, the covering member is provided on the covering member, and is separated from the work space by an operator's hand inserted from the outside of the covering member to the work space side. It is desirable to have a working glove part to be accommodated, and the worker inserts a hand into the working glove part to remove the harmful substance-containing member.
According to such a method for removing a harmful substance-containing member, an operator inserts a hand into the work glove part from the outside of the covering member to remove the harmful substance-containing member in the work space. There is no contact with toxic substances and there is no risk of toxic substances being scattered.

In this method for removing a harmful substance-containing member, it is desirable to have a scattering prevention agent spraying step of spraying a scattering prevention agent on a portion of the work space where the harmful substance-containing member has been removed.
According to such a method for removing a harmful substance-containing member, the scattering inhibitor is sprayed on the part where the harmful substance-containing member is removed in the work space. Is sprayed, it is possible to prevent the harmful substance-containing member and the scattering inhibitor from scattering outside the work space.

A harmful substance-containing member removing apparatus for removing a harmful substance-containing member attached to the outer peripheral surface of a work object, the covering member forming a work space that covers a part of the outer peripheral surface in the circumferential direction so as to be visible. A housing member that is provided on the cover member and houses a harmful substance-containing member that is removed from the working space, an engagement member that is attached to the outer peripheral surface and engages the cover member, and the cover A hazardous substance-containing member, comprising: a work glove part provided on a member and partitioned from the work space and inserted into the work space side from the outside of the cover member to receive a worker's hand It is a removal device.
According to such a harmful substance-containing member removal apparatus, after sealing the work space that covers a part of the outer peripheral surface of the work target in the circumferential direction and is visibly covered by the member, the harmful substance contains Since the member is removed, the toxic substance-containing member can be removed without being scattered outside the work space. At this time, the covering member covers a part of the outer peripheral surface of the work object in the circumferential direction so as to form a work space. Therefore, only a predetermined area is sealed to form a work space. For this reason, since the work scale is smaller than when working over the entire work object or the entire space including the work object, the work can be easily performed and harmful substances capable of removing harmful substance-containing members can be removed at low cost. It is possible to provide an apparatus for removing a substance-containing member.

  In addition, the cover member that formed the work space is arranged in another part different from a part of the outer peripheral surface to form a new work space, and the harmful substance-containing member is removed in the new work space. Even in the space, the toxic substance-containing member can be removed without being scattered outside the work space. In addition, since the operator inserts his hand into the work gloves from the outside of the covering member and removes the hazardous substance-containing member in the work space, the worker does not come into contact with the hazardous substance, and the hazardous substance It is possible to provide an apparatus for removing a harmful substance-containing member that is free from the risk of scattering.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the removal method of the harmful substance containing member which can remove a harmful substance containing member at low cost, and the removal apparatus of a harmful substance containing member.

It is a schematic diagram of the cross section for demonstrating the removal method and removal apparatus of the heat insulating material which concern on this invention. It is a schematic diagram of the side surface for demonstrating the removal method and removal apparatus of the heat insulating material which concern on this invention. It is a schematic diagram of the side surface for demonstrating the removal apparatus of a heat insulating material. It is A arrow directional view of FIG. It is a figure which shows the operation | movement procedure of the removal method of the heat insulating material which concerns on this invention. It is a figure for demonstrating a mode that a covering member is moved. It is a schematic diagram of the cross section for demonstrating the 1st modification of the removal method of a heat insulating material, and a removal apparatus. It is a schematic diagram of the cross section for demonstrating the 2nd modification of the removal method of a heat insulating material, and a removal apparatus. FIG. 8A is a front view of the roller support portion, FIG. 8B is a view taken in the direction of arrow B in FIG. 8A, and FIG. 8C is a view of the roller support portion from above. It is a figure. It is a figure which shows the operation | movement procedure of other embodiment of the removal method of the heat insulating material which concerns on this invention. It is a schematic diagram of the cross section for demonstrating other embodiment of the removal method and removal apparatus of a heat insulating material.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic cross-sectional view for explaining a heat insulating material removal method and removal device according to the present invention. FIG. 2 is a schematic side view for explaining the heat insulating material removing method and removing device according to the present invention. FIG. 3 is a schematic side view for explaining the heat insulating material removing apparatus. 4 is a view taken in the direction of arrow A in FIG.

In the present embodiment, as a long member of the work object, for example, a heat insulating material 3 is attached as a harmful substance-containing member containing a harmful substance such as asbestos on the outer peripheral surface of the pipe body 2 through, for example, a building interior. The operation of removing the heat insulating material 3 of the large pipe 1 will be described as an example. The pipe main body 2 of the large-sized pipe 1 of the present embodiment is a large-diameter pipe whose inner diameter exceeds 1 m.
First, a heat insulating material removing apparatus as a harmful substance-containing member used in the method for removing a harmful substance-containing member of the present embodiment will be described.

<Configuration of heat insulating material removal device>
As shown in FIGS. 1 to 4, the heat insulating material removing device 10 covers a part 1 b in the circumferential direction of the outer peripheral surface 1 a of the large pipe 1 with the heat insulating material 3 attached to the pipe body 2 so as to be visible. 12 and 14 (FIG. 6), a housing member 16 provided in the covering member 20 for housing the heat insulating material 3 removed in communication with the first work space 12, and attached to the outer peripheral surface 1a. The band 30 as an engaging member to which the covering member 20 is engaged, and the covering member 20 are provided to be separated from the working spaces 12 and 14 and inserted into the working spaces 12 and 14 from the outside of the covering member 20. And a working glove part 18 in which a person's hand is accommodated.

  The covering member 20 includes a plurality of resin-made frames 21 and a sheet member 22 attached to the plurality of frames 21 so that the plurality of frames 21 can be arranged at appropriate intervals.

  The frame 21 is an elongate member bent in, for example, a “U” shape, the opened side of the “U” shape is disposed on the outer peripheral surface 1a side, and the closed side is positioned on the opposite side to the outer peripheral surface 1a. To be arranged. In the following description, for each frame 21, the “U” -shaped open side is referred to as the open side of the frame 21, and the “U” -shaped closed side is referred to as the closed side of the frame.

  The sheet member 22 is a transparent or translucent member having flexibility, and a plurality of (here, seven) frames 21 are arranged so that their U-shaped portions face each other. The portion corresponding to the outer contour of the U-shape and the inner portion of the U-shape formed by the frames 21a and 21b located at both ends are formed. In addition, at several places between the adjacent frames 21, openings 22a are provided so as to be opposed to each other so as to be positioned on the open side of the frames 21 and to which the work gloves 18 are attached. Further, the sheet member 22 is formed in a bellows shape by being bent a plurality of times between the frames 21 adjacent to each other.

  The covering member 20 of the present embodiment is configured such that seven frames 21 are joined to each other at a distance from each other by a sheet member 22 and are extendable in a direction in which the frames 21 are connected (hereinafter referred to as an expansion / contraction direction). Has been. For this reason, since each frame 21 has a high degree of freedom in the expansion and contraction direction, the distance between the open side and the closed side of the frame 21 increases or decreases between the frames 21. For this reason, the covering member 20 is curved so that the frames 21a and 21b at both ends are positioned closer to the closing side than the center frame 21c in the expansion and contraction direction, or the frames 21a and 21b at both ends are from the center frame 21c. It is possible to bend so as to be located on the open side, and to easily change the curvature of the curve. And when this covering member 20 is installed in the outer peripheral surface 1a of the large sized pipe 1, the inner side of the covering member 20 will become the work spaces 12 and 14. And the magnitude | size of the covering member 20 is the state where the covering member 20 was extended | stretched, for example, the length of the expansion-contraction direction is 900 mm, the width between the edge parts of the flame | frame 21 is 350 mm, and height is 350 mm. In the following description, the distance between the ends of the frame 21 is referred to as the width of the covering member.

  In the opening 22a provided at a position facing the sheet member 22, the work glove part 18 having a glove-shaped tip is attached in an airtight manner without forming a gap between the opening 22a and the opening 22a. It has been. The work glove part 18 is formed at the center of the work spaces 12 and 14 formed by the frame 21 and the sheet member 22 when the operator inserts his / her hand through the opening 22a provided at the opposite position. It has a reachable length.

  The housing member 16 is formed integrally with the sheet member 22 constituting the covering member 20, and is provided at a portion that covers one end portion of the covering member 20 in the expansion / contraction direction. That is, the accommodating member 16 is provided at either end of the covering member 20, forms a space communicating with the work spaces 12, 14, and is disposed so as to protrude outward of the work spaces 12, 14. For this reason, the removed heat insulating material 3 is accommodated outside the outer peripheral surface 1a in the work spaces 12 and 14.

  The band 30 is, for example, a flat rubber band provided longer than the outer peripheral length of the large-sized pipe 1 that is a work object, and a hook-and-loop fastener (not shown) is provided at the end. For this reason, the band 30 can be attached to the large-sized pipe 1 by winding the band 30 around the outer periphery of the large-sized pipe 1 and joining the ends with a hook-and-loop fastener.

<Removal method of heat insulation material>
FIG. 5 is a diagram showing a work procedure of the heat insulating material removal method according to the present invention. FIG. 6 is a diagram for explaining the movement of the covering member.

  As shown in FIG. 5, the heat insulating material removal method of the present embodiment covers a portion 1 b in the circumferential direction of the outer peripheral surface 1 a of the large-sized pipe 1 to which the heat insulating material 3 is attached so as to be visible, and covers the first work space 12. A covering member arranging step S1 for arranging the covering member 20 to be formed on the outer peripheral surface 1a, a first sealing step S2 for sealing the first working space 12, and a first removing the heat insulating material 3 in the first working space 12. The removal step S3, the anti-scattering agent spraying step S4 for spraying the anti-scattering member to the site where the heat insulating material 3 has been removed in the first work space 12, and the cover member 20 are different from the portion 1b of the outer peripheral surface 1a. A cover member moving step S5 for forming the second working space 14 by being disposed in 1c, a second sealing step S6 for sealing the second working space 14, and a second step for removing the heat insulating material 3 in the second working space 14. 2 In the removal step S7 and the second work space 14 Shatterproof agent spraying process S8 spraying anti-scattering member in the site to remove the heat insulator 3 have the have.

  In the covering member arrangement step S <b> 1, first, the band 30 is attached to the outer peripheral surface 1 a of the large-sized pipe 1. At this time, two bands 30 are used, and are arranged so as to sandwich the work place on the outer peripheral surface 1a of the large-sized pipe 1 with a space between each other in the longitudinal direction of the large-sized pipe 1. The distance between the two bands 30 is slightly wider than the width of the covering member 20, that is, the width of the frame 21 (350 mm).

  Next, the covering member 20 provided with the housing member 16 and the work glove part 18 is disposed so as to cover the work location on the outer peripheral surface 1a of the large-sized pipe 1. At this time, for example, a removal tool and a heat-preventing agent for the heat insulating material 3 necessary for removing the heat insulating material 3 are arranged in the region covered with the covering member 20. Further, the covering member 20 is arranged in an extended state so that the expansion / contraction direction is along the circumferential direction of the large-sized pipe 1, and the covering member 20 is arranged outside in the width direction of the arranged covering member 20, that is, a frame. The covering member 20 is disposed so that the band 30 is located outside the sheet member 21 and the sheet member 22. At this time, the space surrounded by the covering member 20 becomes the first work space 12. Further, the band 30 is brought into contact with the outer peripheral surface 1a so as to be bridged between the two bands 30 between the open end portions of the frames 21a and 21b at both ends in the extending / contracting direction of the covering member 20. Is provided.

  In the first sealing step S2, the band 30 attached to the large-sized pipe 1 and the covering member 20 disposed on the outer peripheral surface 1a are joined over the entire circumference by a tape member 31 such as a cloth adhesive tape, for example. Seal the work space.

  An operator inserts a hand into the work glove part 18 from the outside of the first work space 12, and scrapes off the heat insulating material 3 using a remover disposed in the first work space 12 (first removal step S3). . The heat insulating material 3 that has been scraped off is accommodated in an accommodation member 16 that communicates with the first work space 12. After removing the heat insulating material 3 on the outer peripheral surface 1a in the first work space covered with the covering member 20, the scattering preventing agent is sprayed (scattering preventing agent spraying step S4).

  After removing the heat insulating material 3 in the first work space 12 and spraying the anti-scattering agent to eliminate the risk of the heat insulating material 3 being scattered, the covering member 20 is replaced with another portion 1b different from the outer peripheral surface 1a. The covering member moving step S5 that forms the second work space 14 by being arranged in the portion 1c is executed. At this time, the housing member 16 and the work glove part 18 formed integrally with the covering member 20 are also moved. In the covering member transfer step S5, first, the tape member 31 is peeled off in order to move the covering member 20 forming the first work space 12.

  Next, the cover member 20 is contracted by pulling the one end 20a side of the cover member 20 on the side where the storage member 16 is not provided in the expansion / contraction direction to the other end 20b side, that is, the side where the storage member 16 is provided. At this time, when the heat insulating material 3 removed is packed in the housing member 16 and cannot be continuously used, a new housing member 16 is attached. At this time, the connecting portion between the housing member 16 and the sheet member 22 is sealed with the clamp member 23 and cut off on the covering member 20 side of the sealed portion. Thereafter, a new accommodating member 16 is attached to the cut end portion of the sheet member 22 in an airtight manner.

  Next, the other end 20b side of the covering member 20 to which the accommodating member 16 is newly attached is extended in a direction away from the one end 20a side where the accommodating member 16 is not provided, so that the covering member 20 is formed on the outer peripheral surface 1a. It arrange | positions in the other part 1c different from the part 1b, and forms the 2nd working space 14 (cover member transfer process S5). At this time, an anti-scattering agent for the removing tool and the heat insulating material 3 is disposed in the region covered with the covering member 20. Moreover, the covering member 20 arrange | positions the covering member 20 so that the band 30 may be located in the outer side in the width direction of the arrange | positioned covering member 20, ie, the outer side of the flame | frame 21 and the sheet | seat member 22. FIG. At this time, the space surrounded by the covering member 20 moves along the circumferential direction of the large pipe 1, and the inside of the moved covering member 20 becomes the second working space 14.

  The band 30 attached to the large-sized pipe 1 and the cover member 20 disposed on the outer peripheral surface 1a are joined by the tape member 31 to seal the inside of the second working space 14 (second sealing step S6).

  Then, the operator inserts a hand into the work glove part 18 from the outside of the second work space 14, and scrapes off the heat insulating material 3 using the removal tool disposed in the second work space 14 (second removal step). S7). The heat insulating material 3 that has been scraped off is accommodated in an accommodation member 16 that communicates with the second work space 14. After removing the heat insulating material 3 on the outer peripheral surface 1a in the second working space 14 covered with the covering member 20, the anti-scattering agent is sprayed (anti-scattering agent spraying step S8).

  Thus, after removing the heat insulating material 3 of the part 1b in the circumferential direction of the outer peripheral surface 1a of the large-sized pipe 1, the operation of moving the covering member 20 in the circumferential direction and removing the heat insulating material 3 of the other part 1c is repeated. When the covering member 20 is moved in the longitudinal direction of the large-sized pipe 1, the heat insulating material 3 in the region connected to the circumferential direction of the outer peripheral surface 1a of the large-sized pipe 1 can be removed. It is possible to remove the heat insulating material 3 in the entire area of the outer peripheral surface 1a.

 According to the heat insulating material removal method of the above embodiment, in the first removal step S3, the first work space 12 in which the portion 1b in the circumferential direction of the outer peripheral surface 1a of the large-sized pipe 1 is covered with the covering member 20 so as to be visible is covered. Since the heat insulating material 3 is removed in the first work space 12 after sealing, the heat insulating material 3 can be removed without being scattered outside the first work space 12. At this time, the covering member 20 covers a portion 1b in the circumferential direction of the outer peripheral surface 1a of the large-sized pipe 1 to form the first working space 12, and only a predetermined region is sealed to form the first working space 12. The work scale is smaller than when the entire large pipe 1 or the entire space including the large pipe 1 is covered. For this reason, it is possible to remove the heat insulating material 3 at low cost while being easy to work.

  Further, the covering member 20 that has formed the first work space 12 is disposed in another portion 1c different from the portion 1b of the outer peripheral surface 1a of the large-sized pipe 1 to form the second work space 14, and the second work space 14 Since the heat insulating material 3 is removed inside, it is possible to remove the heat insulating material 3 also in the second work space 14 without being scattered outside the second work space 14. And the heat insulating material 3 is removed in the wide area | region of the outer peripheral surface 1a of the large sized pipe 1 by removing the heat insulating material 3 moving the work space like the 1st work space 12 and the 2nd work space 14. Is possible. Furthermore, since the covering member 20 is repeatedly used, it is possible to reduce the cost for removing the heat insulating material 3.

  Moreover, in the case where the work object is a long member connected in a predetermined direction such as the large pipe 1 as in the above embodiment, in order to cover the whole, a cover capable of forming a work space connected in the predetermined direction. A member is required. For this reason, if the heat insulating material 3 is removed in the work spaces 12 and 14 in which the portion 1b in the circumferential direction of the outer peripheral surface 1a of the large-sized pipe 1 is covered with the covering member 20 so as to be visible, the work scale can be kept small. It is possible to remove the heat insulating material 3 at low cost while being easy to work.

  Moreover, since the covering member 20 is formed to be stretchable along the circumferential direction of the large-sized pipe 1, the work spaces 12 and 14 can be formed along the outer peripheral shape of the large-sized pipe 1, and the outer diameter It is also possible to divert to different work objects. Further, since the cover member 20 is stretched in a direction in which the other end 20b side is separated from the one end 20a side after the one end 20a side in the circumferential direction is attracted and contracted to the other end 20b side, the work spaces 12 and 14 are disposed in the circumferential direction. The heat insulating material 3 in the region connected in the circumferential direction can be removed.

  Further, since the housing member 16 in which the removed heat insulating material 3 is accommodated is provided on the cover member 20 so as to protrude outward of the work spaces 12 and 14, the removed heat insulating material 3 can be quickly operated. It is possible to remove from the outer peripheral surface 1a in the spaces 12,14. For this reason, since work is not hindered by the removed heat insulating material 3, workability is good. Further, since the housing member 16 is provided at either end of the cover member 20 in the expansion / contraction direction, the heat retaining material 3 accommodated in the storage member 16 and the storage member 16 does not hinder the expansion / contraction of the cover member 20. For this reason, it is possible to provide the removal method 10 and the removal apparatus 10 of the heat insulating material 3 with good workability.

  And since an operator inserts a hand into the work glove part 18 from the outer side of the covering member 20, and removes the heat insulating material 3 in the work spaces 12 and 14, the worker contains harmful substances such as asbestos. In addition, there is no possibility that harmful substances are scattered.

  Further, since the scattering preventing agent is sprayed on the portions of the work spaces 12 and 14 where the heat insulating material 3 has been removed, the scattering preventing agent is sprayed in a state where the heat insulating material 3 is covered. For this reason, it is possible to prevent the heat insulating material 3 from scattering outside the work spaces 12 and 14.

  Moreover, according to the removal apparatus 10 of the heat insulating material 3 of this embodiment, since the work scale is smaller than the case where the work is performed covering the entire work object or the entire space including the work object, the work is easy. It is possible to provide a heat insulating material 3 removing device 10 that can remove the heat insulating material 3 at low cost.

  Further, the covering member 20 that has formed the first work space 12 is arranged in another part 1c different from the part 1b of the outer peripheral surface 1a to form a new work space 14, and heat insulation is performed in the new work space 14. Since the material 3 is removed, it is possible to remove the heat insulating material 3 even in the new work space 14 without scattering the heat insulation material 3 outside the work space 14. Further, since the worker inserts his hand into the work glove part 18 from the outside of the covering member 20 and removes the heat insulating material 3 in the work spaces 12 and 14, the worker comes into contact with harmful substances such as asbestos. In addition, it is possible to provide the removal device 10 for the heat insulating material 3 with no risk of scattering of harmful substances.

<Other embodiments>
Moreover, the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

  FIG. 7 is a schematic cross-sectional view for explaining a first modification of the heat insulating material removal method and removal device. In the following description, the same reference numerals are given to the same members as those in the above embodiment, and the description thereof is omitted.

  In the embodiment described above, the work object is the cylindrical large-sized pipe 1. However, as shown in FIG. 7, the work may be a duct 38 having a rectangular cross section and provided with a harmful substance-containing member 37. Absent. In this case, for example, the covering member 35 that covers a portion corresponding to one side of the rectangular shape in the circumferential direction may be used, and the harmful substance-containing member may be removed in four steps. At this time, the covering member 35 does not need to expand and contract, and may be a light-transmitting resin covering member 35 formed in a tunnel shape. Further, the work object is not limited to a hollow member.

  FIG. 8 is a schematic cross-sectional view for explaining a second modification of the heat insulating material removal method and removal device. FIG. 8A is a front view of the roller support portion, FIG. 8B is a view taken in the direction of arrow B in FIG. 8A, and FIG. 8C is a view of the roller support portion from above. It is a figure. In FIG. 8C, the sheet member 22 and the tape member 31 are omitted.

  In the said embodiment, although the engaging member was made into the band 30 and the cover member 20 was attached to the band 30 with the tape member 31 was demonstrated, it does not restrict to this. For example, as shown in FIG. 8, the engaging member is a metal rail 28 having an L-shaped cross section, and each frame 26 of the covering member 25 includes a roller 27a that rotates while being guided by the rail 28. When moving 25, the frame 26 may be moved along the rail 28.

  Specifically, the rail 28 has a rail portion 28a that is in contact with the outer peripheral surface 1a of the large-sized pipe 1 and a guide portion 28b that rises vertically from the end of the rail portion 28a. Two rails 28 are wound around the outer peripheral surface 1 a of the large-sized pipe 1 and are fixed at intervals in the longitudinal direction of the large-sized pipe 1. At this time, the guide portions 28b of the two rails 28 are located on the inner side, and the rail portions 28a are located on the outer side. Further, on the upper surface of the rail portion 28a, a detachment stop 29 for preventing the cover member 25 from being detached from the rail 28 is provided on the side opposite to the guide portion 28b, that is, outside.

  The cover member 25 is provided with a roller support portion 27 at the lower end portion of the frame 26. The roller support portion 27 is disposed so as to sandwich the frame 26 in the extending and contracting direction, and the ball 27b rolls on the rail portion 28a of the rail 28, and the guide portion 28b of the rail 28 provided on the work space 15 side in the roller support portion 27. And two rollers 27a that roll along.

  When the covering member 25 is installed, the two rollers 27a of the roller support portion 27 are engaged with the rail portion 28a and the ball 27b is engaged with the guide portion 28b in a state where the covering member 25 is extended. 28 and the sheet member 22 of the covering member 25 are attached by a tape member 31 to seal the internal work space 15.

  And after the removal process of the heat insulating material 3 is complete | finished and a scattering prevention agent is sprayed, the tape member 31 is peeled and the covering member 25 is shrunk | reduced. At this time, when the end portion of the covering member 25 where the accommodating member 16 is not provided is drawn toward the end portion where the accommodating member 16 is provided, the roller 27a rotates and the ball 27b rolls. It is shortened. Thereafter, the roller 27a also rotates and the ball 27b rolls when the end of the cover member 25 where the housing member 16 is provided moves away from the end where the housing member 16 is not provided. However, it is extended.

  According to the heat insulating material removing method and removing apparatus of the present embodiment, the covering member 25 can be easily expanded and contracted, so that workability is improved and the time for removing the heat insulating material 3 can be shortened.

  FIG. 9 is a diagram showing a work procedure of another embodiment of the heat insulating material removal method according to the present invention. FIG. 10 is a schematic cross-sectional view for explaining another embodiment of the heat insulating material removal method and removal device.

  In the said embodiment, although the example which expands the area | region which removes the heat insulating material 3 by moving the single covering member 20 was demonstrated, it installed for every area | region which removes the heat insulating material 3 using the several covering member 20 You may do it. In this case, for example, as shown in FIGS. 9 and 10, a part 1b in the circumferential direction of the outer peripheral surface 1a of the large-sized pipe 1 is visibly covered, and a covering member 20 that forms a work space is disposed on the outer peripheral surface 1a. A covering member arrangement step S11 for sealing, a sealing step S12 for sealing the working space 33, a removing step S13 for removing the heat insulating material 3 in the working space 33, and a new covering member 36 different from the covering member 20 A cover member new installation step S14 that forms a new work space 34 by arranging it in another portion 1c different from the portion 1b of the surface 1a, a new work space sealing step S15 that seals the new work space 34, and a new work A new work space removal step S16 for removing the heat insulating material 3 in the space 34, and a scatter preventing agent spraying step S8 for spraying a scatter prevention member on the site where the heat insulating material 3 has been removed in the new work space 34, Having.

  According to such a method for removing the heat insulating material 3, in the removing step S13, the covering member 20, 36 covers the part 1b and the other part 1c in the circumferential direction of the outer peripheral surface 1a of the large-sized pipe 1 so as to be visible. Since the heat insulating material 3 is removed in the work spaces 33 and 34 after the spaces 12 and 14 are sealed, the heat insulating material 3 can be removed without being scattered outside the work spaces 33 and 34. At this time, since the covering members 20 and 36 cover the part 1b and the other part 1c in the circumferential direction of the outer peripheral surface 1a of the large-sized pipe 1 to form the work spaces 33 and 34, only a predetermined region is sealed. The work spaces 33 and 34 are smaller than the case where the entire large pipe 1 or the entire space including the large pipe 1 is covered, so that the work is easy and the heat insulating material 3 is removed at a low cost. It is possible.

  In addition, a new cover member 36 different from the cover member 20 forming the work space 33 is arranged in another part 1c different from the part 1b of the outer peripheral surface 1a to form a new work space 34, and a new work Since the heat insulating material 3 is removed in the space 34, it is possible to remove the heat insulating material 3 simultaneously in the work space 33 and the new work space 34. For this reason, it is possible to finish the operation | work which removes the heat insulating material 3 in a short time.

1 large pipe, 1a outer peripheral surface, 1b part, 1c other part, 2 pipe body,
3 heat insulation material, 10 heat insulation material removal device, 12 first work space (work space),
14 second work space (work space), 15 work space, 16 housing member,
18 working gloves, 20 covering member, 20a one end of covering member,
20b The other end of the covering member, 21 frame, 21a frame, 21c frame,
22 sheet member, 22a opening, 23 clamp material, 25 cover member,
26 frame, 27 roller support, 27a roller, 27b ball,
28 rails, 28a rails, 28b guides, 29 slip-offs, 30 bands,
31 tape member, 33 working space, 34 working space, 35 covering member,
36 Covering member, 37 Hazardous substance-containing member, 38 Duct

Claims (9)

A method for removing a harmful substance-containing member that removes a harmful substance-containing member attached to the outer peripheral surface of a work object,
A covering member disposing step of covering a part of the outer peripheral surface in the circumferential direction so as to be visible and disposing a covering member forming the first working space on the outer peripheral surface;
A first sealing step for sealing the first working space;
A first removal step of removing the harmful substance-containing member in the first work space;
A covering member moving step for forming the second working space by arranging the covering member in another part different from a part of the outer peripheral surface;
A second sealing step for sealing the second working space;
A second removal step of removing the harmful substance-containing member in the second work space;
A method for removing a harmful substance-containing member, comprising: A method for removing a harmful substance-containing member according to claim 1,
The method for removing a harmful substance-containing member, wherein the work object is a long member connected in a predetermined direction. A method for removing a harmful substance-containing member according to claim 2,
The long member is a cylinder,
In the covering member moving step, the covering member is disposed in the other portion by moving the covering member along the circumferential direction of the cylindrical body. A method for removing a harmful substance-containing member according to claim 3,
The covering member is formed to be stretchable along the circumferential direction of the cylindrical body,
The method for removing a harmful substance-containing member, wherein the covering member is stretched in a direction in which the other end side is separated from the one end side after one end side in the circumferential direction is drawn and contracted to the other end side. A method for removing a harmful substance-containing member according to claim 4,
The cover member has a feature that it has a housing member for housing the pollutant member provided to protrude outward side, that is the removal of the one side or the working space to the other end To remove a harmful substance-containing member. A method for removing a harmful substance-containing member that removes a harmful substance-containing member attached to the outer peripheral surface of a work object,
A covering member arranging step of covering a part of the outer circumferential surface in the circumferential direction so as to be visible and arranging a covering member forming a work space on the outer circumferential surface;
A sealing step for sealing the work space;
A removing step of removing the harmful substance-containing member in the working space;
A covering member new installation step of forming a new working space by arranging a new covering member different from the covering member in another portion different from a part of the outer peripheral surface;
A new work space sealing step for sealing the new work space;
A new work space removal step of removing the harmful substance-containing member in the new work space;
A method for removing a harmful substance-containing member, comprising: A method for removing a harmful substance-containing member according to any one of claims 1 to 6,
The cover member is provided on the cover member, and has a work glove part that is partitioned from the work space and accommodates a worker's hand inserted into the work space side from the outside of the cover member,
The worker removes the toxic substance-containing member by inserting a hand into the work glove part and removing the toxic substance-containing member. A method for removing a harmful substance-containing member according to any one of claims 1 to 7,
A method for removing a toxic substance-containing member, comprising: a scattering inhibitor spraying step of spraying a scatter inhibitor on a portion of the work space from which the harmful substance-containing member has been removed. A device for removing harmful substance-containing members that removes harmful substance-containing members attached to the outer peripheral surface of a work object,
A cover member that covers a part of the outer peripheral surface in the circumferential direction so as to be visible, and forms a work space;
A housing member that is provided in the covering member and houses the harmful substance-containing member removed in communication with the work space;
An engagement member attached to the outer peripheral surface and engaged with the cover member;
A work glove part provided on the cover member, partitioned from the work space, inserted into the work space side from the outside of the cover member, and accommodating a worker's hand;
An apparatus for removing a toxic substance-containing member, comprising:

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