JP2007205110A - Device for removing asbestos slate plate and method for removing asbestos slate plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive device for removing an asbestos slate plate as well as a method for removing an asbestos slate plate, capable of suppressing generation of dust when dismounting the asbestos slate plate while the work can be carried out safely and efficiently. <P>SOLUTION: The asbestos slate plate removing device 10 is composed in such a way that, while collecting dust generated when dismounting an exterior material of a building and an asbestos slate plate 12 fixed on a roof body as a roof material with a dust sucker 13 which is capable of removing dust through a filter, a fastener 11 fixing the asbestos slate plate 12 is dismounted and the asbestos slate plate 12 is taken off from the roof body. The device includes a hood 16 which is mounted at a tip end of a suction hose 17 extended from the dust sucker 13 and can come into contact of its peripheral edge of the bowl-shaped opening with a surface of the asbestos slate plate 12 in such a way as to locate the fastener 11 substantially at a center. It also includes a suction port 21 composed of a cut-out part 20 for dismounting the fastener 11 by inserting a detaching tool 19 into the front portion of the hood 16. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention occurs when an asbestos slate board is removed when dismantling or refurbishing an exterior material, an asbestos slate board fixed to the roof body as a roofing material, or a so-called asbestos-containing board material. The present invention relates to an asbestos slate board removing apparatus and an asbestos slate board removing method for efficiently and reliably removing dust containing asbestos harmful to a human body.

  Conventionally, asbestos has been considered to be carcinogenic and extremely harmful to the human body. Moreover, in recent years, a causal relationship has been shown that a person has developed cancer by being exposed to an environment in which asbestos dust is generated for a long time. In response to such cases, very strict regulations are imposed on the dismantling of buildings that use asbestos, asbestos when renovating, and removing asbestos-containing materials. This regulation has three levels depending on the type of work depending on the degree of dust generation. The highest level, Level 1, is applied to the removal of asbestos-containing spray material sprayed on relatively large building beams, pillars, ceilings, walls, etc., for fireproof coating, sound absorption, heat insulation, etc. ing. This removal work is performed after strict exposure prevention using a dust mask and protective clothing corresponding to a high-concentration dust amount and isolation of the work place. The next highest level 2 is low in specific gravity of a heat insulating material, heat insulating material, fireproof covering material, etc. containing asbestos stuck to a chimney etc. It is applied to the removal work of products that are lower but relatively easy to generate dust. This removal work is performed after exposure prevention according to Level 1. The lowest level 3 is applied to the removal work of asbestos-containing molded plates affixed to the ceiling, walls, floors, etc. of the building for exterior use, or asbestos slate plates affixed to the roof for roofing materials. . This asbestos-containing molded board, asbestos slate board, etc., are solidified and usually have extremely low dust generation properties. However, wet operations are generally used because they generate dust during crushing and cutting during removal operations. Therefore, the removal work is performed after performing a dust mask according to the level of the amount of dust.

  Asbestos-containing demolition work and renovation work when removing asbestos, removal of level 1 asbestos-containing spray material as described above, and heat insulation material containing level 2 asbestos When removing products that are low in specific gravity, such as heat insulating materials and fireproof coating materials, and easily generate dust, asbestos is likely to be easily scattered, so of course it is necessary to work with strict exposure prevention. is there. Therefore, conventionally, the asbestos-containing spraying material removal apparatus that can cope with level 1 and level 2 is covered with the asbestos-containing spraying material sprayed on the ceiling or wall of the building indoors. A monitoring device having a hood, a peeling means for peeling the asbestos-containing spray material in the hood, a suction means for removing the peeled asbestos-containing spray material from the hood, and a television camera for monitoring the peeling work in the hood. What is provided is disclosed (for example, refer patent document 1). In addition, in the conventional asbestos-containing spraying material removal device that can handle level 1 and level 2, bubbles are ejected from a foam injection nozzle disposed around the inside of the hood provided with the asbestos-containing spraying material removal tool. In addition, an asbestos-containing spray material that has been peeled off is mixed, and the slits in the strip-shaped seal material disposed around the hood are sealed with foam (for example, see Patent Document 2). Furthermore, in the conventional asbestos-containing spraying material removal apparatus and removal method that can handle level 1 and level 2, the removal apparatus and the removal method that can efficiently remove asbestos-containing spraying material are prevented. Is disclosed (for example, see Patent Document 3, Patent Document 4, and Patent Document 5).

  In addition, in the conventional method of repairing level 3 asbestos slate plates such as asbestos slate plates attached to the roof for roofing materials, the old asbestos slate plates are not removed but fixed with reinforcing bolts, A method of applying a caulking process, base preparation, and coating of a roof paint has been proposed (see, for example, Patent Document 6).

Japanese Patent No. 3045011 Japanese Patent No. 3567555 JP-A-8-199832 JP-A-9-72111 Japanese Patent Laid-Open No. 10-323614 JP 2002-188248 A

However, the conventional asbestos slate board removing apparatus and the asbestos slate board removing method as described above have the following problems.
(1) Asbestos slate plates containing asbestos fixed to the roof body for roofing materials, even if temporarily repaired by the cover roof construction method, etc., it will only be postponed, and it will be necessary to remove it. However, conversely, at the time of the next refurbishment, the drying and deterioration progress and the risk of scattering increases.
(2) Buildings using asbestos slate boards containing asbestos have many ordinary houses, and unlike buildings, factories, warehouses, etc., they cannot be removed using a large-scale machine removal device and are slippery. The work on the roof is carried out while watering, and there is a risk of the operator slipping.
(3) The removal of the asbestos slate board containing asbestos fixed to the roof body while watering in a general house causes water leakage into the house in which it resides, making it impossible to maintain the habitability. In addition, asbestos-containing materials that have been washed away due to water sprinkling may adhere to the walls, premises, trees, drainage facilities, etc., and cause secondary harmful problems due to re-scattering after drying.
(4) When the removal work is performed by covering the scaffold for removal work up to about 1m above the roof top of the building using asbestos slate board containing asbestos with a flameproof sheet, In addition to the danger, removal costs are increasing. Moreover, in a general house, installation of a scaffold may be impossible and it may be difficult to deal with removal work.

  The present invention has been made in view of such circumstances, and suppresses dust generation when removing exterior materials such as ordinary houses and asbestos slate plates used as roofing materials, and performs work safely and efficiently. It is an object of the present invention to provide an asbestos slate board removing device and an asbestos slate board removing method which can be inexpensively performed.

  The asbestos slate board removing device according to the present invention that meets the above-mentioned object is a dust absorber that can remove dust generated when removing asbestos slate boards fixed to the roof body as a building exterior material or roof material through a filter. The asbestos slate board removing device that removes the fasteners fixing the asbestos slate board while removing the dust and peels the asbestos slate board from the roof body, attached to the tip of the suction hose extending from the dust suction machine A notch for removing the fastener by inserting the removal tool into the front part of the hood, having a hood that can contact the peripheral edge of the bowl-shaped opening with the surface of the asbestos slate plate so that the fastener is substantially in the center. It has a suction port consisting of parts.

  Here, as for said asbestos slate board removal apparatus, it is good for a hood to consist of a transparent board.

  In addition, the asbestos slate plate removing device may be configured such that the tip of the suction hose can be inserted into the vicinity of the fastener in the hood.

  The asbestos slate board removing method according to the present invention, which meets the above-mentioned object, absorbs dust generated when removing the exterior material of a building and the fastener fixing the asbestos slate board fixed to the roof body as a roofing material. Asbestos slate board removal method that removes the asbestos slate board from the roof body while sucking with the dust suction machine while removing the dust while sucking with the machine. In addition to being installed separately, the vertical edge of the hood attached to the tip of the suction hose that extends from the dust suction unit comes into contact with the surface of the asbestos slate plate so that the fastener is at the center. The process of removing the fastener by inserting the removal tool into the suction port consisting of a notch provided in the front part of the hood while operating the machine, and the vertical opening circumference of the hood while operating the dust suction machine Parts with suction dust between the asbestos slate plates adjacent contact asbestos slate board and the roof body has a step of separating the asbestos slate plate from the roof body.

  Here, the asbestos slate board removing method preferably includes a step of spraying water on the asbestos slate board before the step of removing the fastener.

  The asbestos slate board removing device according to claim 1 or any one of claims 2 or 3 dependent thereon is generated when an exterior material of a building or an asbestos slate board fixed to a roof body as a roof material is removed. Asbestos slate board removing device that removes the fasteners that fix the asbestos slate board and removes the asbestos slate board from the roof body while sucking dust with the dust suction machine that can remove dust through the filter. It has a hood that is attached to the tip of the extended suction hose and has a hood that can be brought into contact with the asbestos slate plate surface so that the fastener is substantially in the center, and a detachable tool at the front of the hood. Because it has a suction port that consists of a notch for inserting and removing the fastener, there is no need to carry out the removal process in advance, and it is easy to handle and remove the fastener with a simple operation It is a device that can remove dust generated and dust between asbestos slate board and roof body through a filter, for example, a suction hose extended from a dust suction machine installed in a safe place off the roof is desired The dust can be absorbed by a hood that is moved to a place and attached to the tip, and can be safely operated even on a slippery roof of a general house. In addition, since it is a device that can easily remove dust even without the need for work while sprinkling water, it is possible to destroy the habitability in the house due to water sprinkling, or secondary due to re-scattering after running out of contaminated water The occurrence of harmful problems can be prevented. Furthermore, even if it does not require a scaffold that covers the entire surface with a flameproof sheet, it is a device that can reliably remove the work anywhere by securing a small amount of scaffolding for installing the dust absorber. Work can be done safely at a cost.

  In particular, in the asbestos slate plate removing device according to claim 2, since the hood is made of a transparent plate, the hood can be arranged so that the fastener comes to substantially the center of the hood, and the removal tool can be easily attached to the fastener. You can work efficiently. In addition, the peripheral edge portion of the bowl-shaped opening of the hood can be observed from the outside of the hood, and the close contact with the asbestos slate plate can be visually confirmed, and the leakage of dust can be surely prevented.

  In particular, the asbestos slate plate removing device according to claim 3 is configured such that the tip of the suction hose can be inserted into the vicinity of the fastener in the hood, so that the tip of the suction hose is moved to the vicinity of the position where dust is generated. It can be extended and dust can be reliably absorbed and removed.

  The asbestos slate board removing method according to claim 4 or claim 5 dependent thereon is a method of removing a fastener that fixes an exterior material of a building or an asbestos slate board fixed to a roof body as a roofing material. An asbestos slate board removing method for removing asbestos slate board from a roof body while removing dust generated by suction with a dust suction machine and sucking dust between the asbestos slate board and the roof body with a dust suction machine. Asbestos slate plate surface with the fastener at the center of the vertical opening edge of the hood attached to the tip of the suction hose extending from the dust absorber The process of removing the fastener by inserting the removal tool into the suction port made of a notch provided in the front part of the hood while operating the dust suction machine, and the process of operating the dust suction machine while operating the dust suction machine. Since there is a step of abutting the peripheral edge of the vertical opening between adjacent asbestos slate plates and sucking dust between the asbestos slate plate and the roof body to peel the asbestos slate plate from the roof body, the dangerous roof body Asbestos that can remove fasteners and remove asbestos slate board from the roof body while easily removing dust generated by the hood attached to the tip of the suction hose extending from the dust suction machine installed in a safe place away A slate plate removing method can be provided.

  In particular, the asbestos slate plate removing method according to claim 5 has a step of spraying water on the asbestos slate plate before the step of removing the fastener, so that the water is sprayed before the operation, not the operation while watering. As a result, it is possible to provide an asbestos slate board removal method that can prevent the operator from slipping and the dust can be reliably prevented from scattering while the work on the roof is somewhat dry. .

Subsequently, the best mode when the present invention is embodied will be described with reference to the accompanying drawings to provide an understanding of the present invention.
Here, FIG. 1 is an explanatory diagram of an asbestos slate plate removing apparatus according to an embodiment of the present invention, and FIGS. 2A and 2B are respectively an asbestos slate plate removing method according to an embodiment of the present invention. It is explanatory drawing.

  As shown in FIG. 1, an asbestos slate board removing device 10 according to an embodiment of the present invention is fixed to a roof body as a roofing material by using a fastener 11 as a building material composed of a general house or a warehouse. It is an apparatus used when removing the asbestos slate board 12 containing the asbestos made from the roof main body. The asbestos slate board removing device 10 removes the fastener 11 while removing dust generated by the asbestos slate board 12 by a dust absorber 13 that can remove dust through a filter, and peels the asbestos slate board 12 from the roof body. Can be used. There are various types of fasteners 11, but in general, fixing nails, screw nails, or asbestos slate plates 12 that are hit against the roof body from above the asbestos slate board 12 are attached to the roof body. Tightening bolts and nuts are used.

  As the dust absorber 13 of the asbestos slate plate removing device 10 described above, for example, a clean room cleaner using a filter for dust removal is suitable. In the dust absorber 13 composed of this clean room cleaner, the main filter 14 that is attached to the suction side and directly collects dust is a paper pack system, and most of the dust can be collected by the main filter 14. . In addition, when the main filter 14 is replaced, the dust suction device 13 sprays and absorbs a certain amount of water on the main filter 14 in which dust is collected to prevent dust from being scattered safely. Exchanges can be made. The main filter 14 that has been replaced can be safely disposed of by sealing and fixing it with cement mortar or the like. Further, the dust suction machine 13 is provided with a clean filter 15 attached to the discharge side for further dust removal from the exhaust gas that has passed through the main filter 14 and discharging clean air to the outside. Since this clean filter 15 has a large capacity, its life is long and its replacement frequency is low. However, when replacement is necessary, water is sprayed from the storage lid, and the disposal process similar to that of the main filter 14 is performed. It can be performed.

  The asbestos slate plate removing device 10 is a metal plate or a reinforced plastic plate for bringing the peripheral edge opened in a bowl shape into contact with the surface of the asbestos slate plate 12 so that the fastener 11 is substantially in the center. And the like. The hood 16 is provided with a tip end of a suction hose 17 provided so as to extend from the suction side of the dust absorber 13. Further, a brush 18 that protrudes from the outer peripheral surface of the tip of the suction hose 17 to the tip side is preferably provided at the tip of the suction hose 17, and this brush 18 gives an external force to dust that is difficult to suck. It can make it easy to suck. In addition, a plurality of suction nozzles (not shown) having an inner diameter that is smaller than the inner diameter of the suction hose 17 and that does not pass the fasteners 11 and the like are disposed inside the brush 18 provided on the suction hose 17 at the tip. It is good to provide. This tip portion can prevent suction of the fastener 11 and the like by this suction nozzle, and can prevent the main filter 14 of the dust suction machine 13 from being destroyed and also prevent scattering of dust generated by the destruction. The suction hose 17 is a suction hose 17a made of a pipe-like rigid body that extends from the hood 16 and can be gripped and operated by a person. The suction hose 17 extends from the suction hose 17a and is on the suction side of the dust suction machine 13. It is good that the suction hose 17b which consists of a bellows-like flexible to the part to is. In addition, the suction hose 17 has a length of about 8 m, so that the dust suction machine 13 is not moved on an unstable and dangerous roof, and is fixed to a safe place. It will be possible to work safely by moving.

  In the hood 16 of the asbestos slate plate removing apparatus 10, for example, a nail remover or a detacher 19 such as a spanner is inserted, and a hook-shaped hood 16 is removed at the front of the hood 16 for removing the fastener 11 from the roof body. It has a suction port 21 composed of a notch 20 formed by notching a part of the opening. The size of the suction port 21 is not particularly limited, but the removal tool 19 can be inserted in order to quickly suck the dust generated in the hood 16 without being scattered outside. It is preferable that the size is as small as possible and can be as small as possible.

  In the asbestos slate plate removing apparatus 10 described above, the hood 16 is preferably made of a transparent plate. The transparent hood 16 allows the inside of the hood 16 to be visually confirmed, so that the position of the asbestos slate plate 12 and the fastener 11 can be accurately grasped and the work can be efficiently performed. The gap with the asbestos slate plate 12 can be reduced, and dust can be reliably prevented from scattering from the bowl-shaped opening.

  Further, the asbestos slate plate removing device 10 is preferably configured so that the tip of the suction hose 17 can be inserted into the vicinity of the fastener 11 inside the hood 16. When the fastener 11 is removed from the asbestos slate plate 12, the tip of the suction hose 17 is located in the vicinity of the fastener 11 as much as possible, so that the generated dust can be reliably prevented from scattering.

Next, an asbestos slate plate removing method according to an embodiment of the present invention will be described with reference to FIGS. 2 (A) and 2 (B). 2A is a conceptual diagram of the asbestos slate board removing method according to one embodiment of the present invention, and FIG. 2B is an enlarged view of a portion A of the asbestos slate board removing method.
As shown in FIGS. 2 (A) and 2 (B), the asbestos slate board removing method according to one embodiment of the present invention is an exterior material of a building including a general house or a warehouse, or a roof body as a roof material. In this method, asbestos slate plate 12 containing asbestos fixed to 22 is removed from roof body 22 by at least two workers. In this operation, the dust generated when the two workers remove the fasteners 11 such as the fixing nails fixing the asbestos slate plate 12 to the roof body 22 is removed while sucking with the dust sucker 13, and the asbestos slate plate is removed. The asbestos slate plate 12 is peeled from the roof main body 22 while sucking the dust between the roof 12 and the roof main body 22 with the dust absorber 13. Work with this removal method does not require work while sprinkling water, and does not require large scaffolding or covering with a full flameproof sheet, so it can be done safely and at low cost. Can be.

  In the above asbestos slate board removing method, the dust absorber 13 body is isolated from the roof, and for example, when a scaffold standing on a position relatively close to the roof or a scaffold around cannot be set, a slight amount is required. It is installed on a mounting table 23 such as a bag provided in the space. At the same time, one of the two workers has the hood 16 attached to the tip of the suction hose 17 extending from the suction side of the dust absorber 13 on the surface of the asbestos slate plate 12. The hook-shaped opening peripheral edge is in contact with the fastener 11 fixing the asbestos slate plate 12 at the substantially central portion. Then, while the dust sucker 13 is operated, the other worker sucks the suction port 21 formed of a notch portion 20 provided in the front portion of the hood 16 fixed by the one worker in contact with the surface of the asbestos slate plate 12. The fastener 11 is removed by inserting a removal tool 19 such as a nail removal tool for removing the fastener 11.

  Furthermore, in this asbestos slate plate removal method, while the dust sucker 13 is operated, one worker makes an asbestos slate contact between the adjacent asbestos slate plates 12 between the adjacent asbestos slate plates 12. Dust accumulated between the plate 12 and the roof body 22 is sucked to peel the asbestos slate plate 12 from the roof body 22.

  In the above asbestos slate board removing method, it is preferable to spray water on the asbestos slate board 12 before the operation of removing the fastener 11 is performed. The asbestos slate plate 12 contains water before the work, so that the dust generated when the fastener 11 is removed becomes an aggregate, which can prevent fine dust from being scattered and the moisture-containing aggregate. The dust can be easily sucked and removed by the dust collector 13. In addition, the amount of water is such that it is sprayed, and there is no leakage of water from the roof body 22 into the house, so that the occurrence of contamination in the room 24 can be prevented.

  The asbestos slate board removing apparatus and the asbestos slate board removing method of the present invention is to remove the asbestos slate board from the building using the asbestos slate board containing asbestos without performing the operation while sprinkling water. It can be utilized as a removal device and a removal method capable of performing the above. Therefore, this removal apparatus and removal method can be widely used for removing exterior materials and roofing materials containing asbestos used in buildings such as ordinary houses and warehouses.

It is explanatory drawing of the asbestos slate board removal apparatus which concerns on one embodiment of this invention. (A), (B) is explanatory drawing of the asbestos slate board removal method which concerns on one embodiment of this invention, respectively, and A section enlarged explanatory drawing.

Explanation of symbols

  10: Asbestos slate plate removing device, 11: Fastener, 12: Asbestos slate plate, 13: Dust absorber, 14: Main filter, 15: Clean filter, 16: Hood, 17, 17a, 17b: Suction hose, 18: Brush, 19: Remover, 20: Notch, 21: Suction port, 22: Roof body, 23: Mounting table, 24: Indoor

Claims (5)

A fastener that holds the asbestos slate board while absorbing dust with a dust absorber that can remove dust generated when removing the asbestos slate board fixed to the roof body as a building exterior or roof material. An asbestos slate board removing device for removing the asbestos slate board from the roof body,
The hood is attached to the tip of a suction hose extending from the dust suction machine, and has a hood capable of abutting the peripheral edge of the bowl-shaped opening against the surface of the asbestos slate plate so that the fastener is substantially at the center. An asbestos slate board removing device comprising a suction port including a notch for inserting a removal tool into a front portion of the hood and removing the fastener.   2. The asbestos slate plate removing apparatus according to claim 1, wherein the hood is made of a transparent plate.   The asbestos slate board removing device according to claim 1 or 2, wherein a tip portion of the suction hose can be inserted in the hood to the vicinity of the fastener. While removing the dust generated when removing the fasteners fixing the asbestos slate plate fixed to the roof body as the exterior material of the building and the roof body with a dust absorber, the asbestos slate plate and the roof An asbestos slate board removing method for peeling the asbestos slate board from the roof body while sucking dust between the bodies with the dust absorber,
The dust absorber is installed separately from the roof, and the hook-shaped opening peripheral edge of the hood attached to the tip of the suction hose extending from the dust absorber is set to be substantially in the center. Abutting the asbestos slate plate surface and removing the fastener by inserting a removal tool into a suction port formed of a notch provided in the front portion of the hood while operating the dust suction machine;
While operating the dust sucker, the hood-shaped opening peripheral edge of the hood is brought into contact with the adjacent asbestos slate plate to suck dust between the asbestos slate plate and the roof body, and the asbestos slate from the roof body. An asbestos slate plate removing method comprising a step of peeling a plate.   The asbestos slate board removing method according to claim 4, further comprising a step of spraying water on the asbestos slate board before the step of removing the fastener.

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