JPH01141847A - Method and apparatus for preventing asbestos from scattering - Google Patents
Method and apparatus for preventing asbestos from scatteringInfo
- Publication number
- JPH01141847A JPH01141847A JP29739387A JP29739387A JPH01141847A JP H01141847 A JPH01141847 A JP H01141847A JP 29739387 A JP29739387 A JP 29739387A JP 29739387 A JP29739387 A JP 29739387A JP H01141847 A JPH01141847 A JP H01141847A
- Authority
- JP
- Japan
- Prior art keywords
- asbestos
- solidifying agent
- nozzle
- agent liquid
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010425 asbestos Substances 0.000 title claims abstract description 162
- 229910052895 riebeckite Inorganic materials 0.000 title claims abstract description 162
- 238000000034 method Methods 0.000 title claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 17
- 239000000057 synthetic resin Substances 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims abstract description 9
- 239000000839 emulsion Substances 0.000 claims abstract description 6
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 4
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 4
- 230000002265 prevention Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 15
- -1 for instance Substances 0.000 abstract description 5
- 238000004299 exfoliation Methods 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- XDRLAGOBLZATBG-UHFFFAOYSA-N 1-phenylpenta-1,4-dien-3-one Chemical compound C=CC(=O)C=CC1=CC=CC=C1 XDRLAGOBLZATBG-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 229920003064 carboxyethyl cellulose Polymers 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229920002114 octoxynol-9 Polymers 0.000 description 1
- 239000003961 penetration enhancing agent Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 229920006174 synthetic rubber latex Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/0066—Disposal of asbestos
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、内装工事に関し、より詳細には、建造物の
内壁などに吹付けられた石綿の飛散を防止し、必要に応
じて固化された石綿層を剥離する方法およびその方法に
用いる装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to interior construction work, and more specifically, to prevent scattering of asbestos sprayed on the inner walls of buildings, etc., and to harden it as necessary. The present invention relates to a method for peeling off an asbestos layer and an apparatus used in the method.
ピルデンイング、地下道、家屋などの建造物の天井、壁
、床および廊下に断熱などの目的で、石綿を含む吹付は
材が、塗布、噴霧、および吹付けされている。Asbestos-containing spray materials are applied, sprayed, and sprayed onto the ceilings, walls, floors, and hallways of structures such as pildens, underground passages, and houses for purposes such as insulation.
この建造物に吹付けられた石綿の層は、必要に応じて適
宜、スフレイバ−（ケレンともいう）などの道具を用い
た手作業、または高圧水吹付けなどにより剥離されてい
た。しかし、近年、石綿に発ガン性があることが問題に
なり、石綿の剥離工事が増大すると共に、その工事にお
ける石綿繊維片の飛散を防止する必要が生じている。The layer of asbestos that was sprayed onto this building was peeled off, as necessary, by hand using a tool such as a soufflifier (also called a keren), or by high-pressure water spraying. However, in recent years, the carcinogenicity of asbestos has become a problem, and asbestos removal work has increased, it has become necessary to prevent asbestos fiber fragments from scattering during the work.
従来、石綿の剥離工事は、スフレイバーなどの道具を用
いた手作業、および高圧水吹付けなどの機械的除去が行
われていた。Conventionally, asbestos removal work has been carried out manually using tools such as soufflifier, and mechanically using high-pressure water spraying.
しかしながら、従来のスフレイバーなどの道具を用いた
手作業、および高圧水吹付けなどの機械的な剥離作業で
は、多量の石綿繊維片が周囲に飛散する。したがって、
石綿の剥離工事は、作業現場をビニールシートなどで密
閉して行われ、作業員は石綿繊維片遮断マスクを装着し
なくてはならず、石綿により現場の飛散汚染は防止でき
なかった。However, manual stripping operations using conventional tools such as soufflaver, and mechanical stripping operations such as high-pressure water spraying, scatter large amounts of asbestos fiber pieces into the surrounding environment. therefore,
Asbestos removal work was carried out by sealing the work site with vinyl sheets, etc., and workers had to wear masks that blocked out asbestos fiber fragments, making it impossible to prevent asbestos from scattering and contaminating the site.
この発明は上述の背景に基づきなされたものであり、そ
の目的とするところは従来、の方法の問題点を解消して
、石綿を固定し、更に石綿の剥離作業においても石綿を
容易に剥離させると共にその石綿繊維片の粉塵の飛散を
防止することのできる方法およびその方法に用いる装置
を提供することである。This invention was made based on the above-mentioned background, and its purpose is to fix asbestos by solving the problems of the conventional method, and also to easily peel off asbestos during asbestos removal work. It is also an object of the present invention to provide a method capable of preventing the scattering of dust from asbestos fiber pieces, and an apparatus for use in the method.
上記課題は、この発明による方法および装置により解決
される。The above object is solved by a method and a device according to the invention.
すなわり、この発明の石綿飛散防止方法は、建造物に吹
付けられた石綿層内部に石綿固化剤液を強制的に注入し
て含浸させ、石綿層を固化して石綿の飛散を防止し、必
要に応じて固化された石綿層を剥離することからなるも
のである。In other words, the asbestos scattering prevention method of the present invention forcibly injects and impregnates an asbestos solidifying agent solution into the asbestos layer sprayed onto a building, solidifies the asbestos layer, and prevents asbestos scattering. , and peeling off the solidified asbestos layer as necessary.
この発明の好ましい態様において固化剤液の強制的注入
を、次の様に行うことができる。In a preferred embodiment of the present invention, forced injection of the solidifying agent liquid can be performed as follows.
第一に、石綿層内部にノズルを挿入し、該ノズルから固
化剤液を圧出して行う。First, a nozzle is inserted into the asbestos layer, and the solidifying agent liquid is forced out from the nozzle.
第二に、石綿層表面にノズルを密着させ、該ノズルから
固化剤液を圧出して行う。Second, a nozzle is brought into close contact with the surface of the asbestos layer, and the solidifying agent liquid is forced out from the nozzle.
この発明の好ましい態様において、石綿固化剤液は、溶
液状またはエマルジョン状の合成樹脂および／または合
成ゴムからなる。In a preferred embodiment of this invention, the asbestos solidifying agent liquid consists of a synthetic resin and/or synthetic rubber in the form of a solution or emulsion.
この発明の好ましい態様において、石綿固化剤液が、熱
硬化性合成樹脂からなる場合、石綿層の固化を加熱によ
り行うことができる。In a preferred embodiment of this invention, when the asbestos solidifying agent liquid is made of a thermosetting synthetic resin, the asbestos layer can be solidified by heating.
この発明の好ましい別の態様において、石綿固化剤液が
、エネルギー線硬化性合成樹脂からなる場合、石綿層の
固化をエネルギー線照射により行うことができる。In another preferred embodiment of the present invention, when the asbestos solidifying agent liquid is made of an energy ray-curable synthetic resin, the asbestos layer can be solidified by energy ray irradiation.
この発明の好ましい更に別の態様において、石綿固化剤
液が、化学的硬化性合成樹脂からなる場合、石綿層の固
化を硬化剤注入により行うことができる。In yet another preferred embodiment of the present invention, when the asbestos solidifying agent liquid is made of a chemically curable synthetic resin, the asbestos layer can be solidified by injecting the hardening agent.
この発明による石綿飛散防止装置は、建造物に吹付けら
れた石綿層内部に向けて石綿固化剤液を押出すノズルと
、このノズルを移動しかつ保持するノズル支持具と、導
管を介して石綿固化剤液をノズルに圧送する装置とから
なり、必要に応じて石綿固化剤液を圧送装置に供給・貯
留するタンクを備えることを特徴とするものである。The asbestos scattering prevention device according to the present invention includes a nozzle that pushes out an asbestos solidifying agent liquid toward the inside of an asbestos layer sprayed on a building, a nozzle support that moves and holds this nozzle, and a conduit that allows the asbestos It is characterized by comprising a device for force-feeding a solidification agent liquid to a nozzle, and a tank for supplying and storing asbestos solidification agent liquid to the pressure-feeding device as needed.
この発明による装置の好ましい態様において、多数のノ
ズルが、石綿層面の形状に合せて配列されている。In a preferred embodiment of the device according to the invention, a large number of nozzles are arranged in accordance with the shape of the asbestos layer surface.
この発明による装置の好ましい別の態様において、ノズ
ルは、刃物状に形成されている。In another preferred embodiment of the device according to the invention, the nozzle is shaped like a knife.
この発明による装置の好ましい更に別の態様において、
ノズルは、その広口の周辺に石綿層面との密封部材が配
設されている。In a further preferred embodiment of the device according to the invention,
A sealing member for sealing the nozzle with the asbestos layer is provided around the wide opening of the nozzle.
以下、この発明をより詳細に説明する。This invention will be explained in more detail below.
飛散防止法
この発明による飛散防止法は、建造物に吹付けられた石
綿層内部に石綿固化剤液を強制的に注入して含浸させ、
石綿層を固化して石綿の飛散を防止し、必要に応じて固
化された石綿層を剥離することからなるものである。Scattering prevention method The scattering prevention method according to this invention forcibly injects asbestos solidifying agent liquid into the asbestos layer sprayed on the building to impregnate it.
This consists of solidifying the asbestos layer to prevent asbestos from scattering, and peeling off the solidified asbestos layer if necessary.
この発明の方法において、被対称物である建造物に吹付
けられた石綿層の層厚や形状、その石綿の種類、その石
綿以外の成分の種類は任意である。In the method of this invention, the thickness and shape of the asbestos layer sprayed onto the target object, the type of asbestos, and the types of components other than asbestos are arbitrary.
石綿層内部への石綿固化剤液の注入の態様は、石綿層内
部に石綿固化剤液が強制的に含浸するように実施される
。したがって、単に石綿層表面に石綿固化剤液を塗布し
、石綿層表面からその間隙を浸透させる態様は含まない
。この発明による注入の態様として、例えば、第一に、
石綿層内部までノズルを挿入し、このノズルから固化剤
液を押し出し、石綿層内部の間隙を自らの圧力で拡散さ
せて行う態様、第二に、石綿層表面にノズルを密着させ
、このノズルから固化剤液を押し出し、石綿層表面およ
び内部の間隙を自らの圧力で拡散させて行う態様がある
。The asbestos solidifying agent liquid is injected into the asbestos layer so that the asbestos solidifying agent liquid is forcibly impregnated into the asbestos layer. Therefore, it does not include a mode in which the asbestos solidifying agent liquid is simply applied to the surface of the asbestos layer and penetrates into the gaps from the surface of the asbestos layer. As aspects of the injection according to the present invention, for example, firstly,
A method in which a nozzle is inserted into the asbestos layer, the solidifying agent liquid is pushed out from this nozzle, and the gap inside the asbestos layer is diffused by its own pressure.Secondly, a nozzle is brought into close contact with the surface of the asbestos layer and the There is a method in which the solidifying agent liquid is pushed out and diffused through the asbestos layer surface and internal gaps using its own pressure.
注入の圧力および石綿固化剤液の注入量などは、被処理
対象物の形状、寸法、処理量などに応じて適宜選択・変
更することができる。The injection pressure, the injection amount of the asbestos solidifying agent liquid, and the like can be appropriately selected and changed depending on the shape, size, amount of treatment, etc. of the object to be treated.
この発明で用いられる石綿固化剤液は、化学的または物
理的に石綿の繊維片などが飛散することを防止すること
ができる程度にまで、固化・硬化することができるもの
である。その様なものとして、例えば、溶液状またはエ
マルジョン状の合成樹脂および／または合成ゴムがある
。The asbestos solidifying agent liquid used in the present invention can solidify and harden to the extent that it can chemically or physically prevent asbestos fiber pieces from scattering. Such materials include, for example, synthetic resins and/or synthetic rubbers in the form of solutions or emulsions.
ここで、合成樹脂としては、ポリビニルアルコール、メ
チルセルロース、カルボキシメチルセルロース、カルボ
キシエチルセルロース、ポリエチレンオキサイド、デキ
ストリン、ポリアクリルアマイドなどの水溶性高分子、
酢酸ビニル樹脂、エチレン−酢酸ビニル共重合樹脂、酢
酸ビニル−アクリル共重合樹脂、アクリル酸エステル樹
脂、アクルルースチレン共重合樹脂、ポリエステル樹脂
などの熱可塑性樹脂、エポキシ樹脂やウレタン樹脂など
の硬化剤との化学反応型硬化性樹脂、フェノール樹脂な
どの熱硬化性樹脂、エネルギー線硬化性樹脂などがある
。また、合成ゴムラテックスとしては、スチレン−ブタ
ジェンゴム、クロロブレンゴム、ブタジェンゴムなどが
ある。Here, the synthetic resin includes water-soluble polymers such as polyvinyl alcohol, methylcellulose, carboxymethylcellulose, carboxyethylcellulose, polyethylene oxide, dextrin, and polyacrylamide;
With thermoplastic resins such as vinyl acetate resin, ethylene-vinyl acetate copolymer resin, vinyl acetate-acrylic copolymer resin, acrylate ester resin, acryl-styrene copolymer resin, polyester resin, and curing agents such as epoxy resin and urethane resin. These include chemical reaction type curable resins, thermosetting resins such as phenolic resins, and energy ray curable resins. Examples of synthetic rubber latex include styrene-butadiene rubber, chloroprene rubber, and butadiene rubber.
この石綿固化剤液には、上記の成分以外に、目的に応じ
て種々の添加物を配合することができる。In addition to the above-mentioned components, various additives can be added to this asbestos solidifying agent solution depending on the purpose.
その様なものとして、例えば、浸透促進剤がある。Such agents include, for example, penetration enhancers.
この浸透促進剤は、石綿固化剤液が石綿層の内部まで浸
透することを促進する作用を有するものであり、その様
なものとして、アルキルナフタレンスルホン酸塩、ジア
ルキルスルホコハク酸塩などのアニオン系界面活性剤、
ポリオキシエチレンオクチルフェニルエーテル、ポリオ
キシエチレンアルキルフェノールエーテル、ポリオキシ
エチレンアルキルエーテルなどのノニオン系界面活性剤
などがある。This penetration enhancer has the effect of promoting the penetration of the asbestos solidifying agent solution into the inside of the asbestos layer, and includes anionic interfaces such as alkylnaphthalene sulfonates and dialkyl sulfosuccinates. activator,
Examples include nonionic surfactants such as polyoxyethylene octylphenyl ether, polyoxyethylene alkylphenol ether, and polyoxyethylene alkyl ether.
更に、石綿固化剤液が、硬化剤との反応型硬化性合成樹
脂、例えば、エポキシ樹脂、ウレタン樹脂から成る場合
、この樹脂に応じた硬化剤を石綿固化剤液に同時または
事前に配合して用いることができる。Furthermore, when the asbestos solidifying agent liquid is made of a reactive curable synthetic resin with a hardening agent, such as an epoxy resin or a urethane resin, a hardening agent corresponding to this resin may be added to the asbestos solidifying agent liquid at the same time or in advance. Can be used.
この発明の方法での石綿の固化は、石綿固化剤液の種類
に応じて適宜選択・変更して行うことができる。例えば
、石綿固化剤液は合成樹脂エマルジョンからなるとき、
水などの分散媒は蒸発させて乾燥固化させることができ
、また、石綿固化剤液が熱硬化性合成樹脂からなる場合
、石綿層の固化を加熱により行うことができ、更に、石
綿固化剤液がエネルギー線硬化性合成樹脂からなる場合
、石綿層の固化をエネルギー線照射により行うことがで
き、また、石綿固化剤液が硬化剤との反応型硬化性合成
樹脂からなる場合、石綿層の固化を硬化剤注入により行
うことができる。Solidification of asbestos in the method of the present invention can be carried out by appropriately selecting and changing the asbestos solidifying agent liquid depending on the type of asbestos solidifying agent liquid. For example, when the asbestos solidifying agent liquid consists of a synthetic resin emulsion,
A dispersion medium such as water can be dried and solidified by evaporation, and when the asbestos solidifying agent liquid is made of a thermosetting synthetic resin, the asbestos layer can be solidified by heating. When the asbestos layer is made of energy ray-curable synthetic resin, the asbestos layer can be solidified by energy ray irradiation, and when the asbestos solidifying agent liquid is made of a reactive curable synthetic resin with a curing agent, the asbestos layer can be solidified. This can be done by injecting a hardening agent.
この発明の石綿飛散防止法は、石綿層の固化後に、必要
に応じて、石綿層を種々の手段で剥離することもできる
。In the asbestos scattering prevention method of the present invention, after the asbestos layer has solidified, the asbestos layer can be peeled off by various means, if necessary.
石綿飛散防止装置
この発明による石綿飛散防止装置を、−例を示す第１図
を用いて具体的に説明する。この例の装置１では、建造
物に吹付けられた石綿層２内部に向けて石綿固化剤液を
押出すノズル３と、このノズルを移動しかつ保持するノ
ズル支持具（図示せず）と、導管５を介して石綿固化剤
液をノズルに圧送する装置４（例えば、ポンプ、圧搾空
気による装置など）とからなり、この例では、石綿固化
剤液７を圧送装置４に供給・貯留するタンク６を備える
。Asbestos Scattering Prevention Device The asbestos scattering prevention device according to the present invention will be specifically explained using FIG. 1 showing an example. The device 1 of this example includes a nozzle 3 that pushes out an asbestos solidifying agent liquid toward the inside of an asbestos layer 2 sprayed on a building, a nozzle support (not shown) that moves and holds this nozzle, It consists of a device 4 (for example, a pump, a device using compressed air, etc.) that pumps the asbestos solidifying agent liquid to the nozzle via a conduit 5, and in this example, a tank that supplies and stores the asbestos solidifying agent liquid 7 to the pumping device 4. 6.
この態様では、多数のノズル３が、石綿層２平面の形状
に合せて配列されている。In this embodiment, a large number of nozzles 3 are arranged according to the shape of the asbestos layer 2 plane.
この態様の装置の使用法を次に示す。The use of this embodiment of the device follows.
先ず、この装置のタンク６に石綿固化剤液７を入れて準
備し、ノズル支持具（図示せず）を所定の位置に移動し
てノズル３を、建造物に吹付けられた石綿層２面に向け
る。First, prepare the asbestos solidifying agent liquid 7 by putting it in the tank 6 of this device, move the nozzle support (not shown) to a predetermined position, and apply the nozzle 3 to the two sides of the asbestos layer sprayed on the building. turn to
固化剤液の強制的注入態様に応じて、ノズルを操作する
。例えば、石綿層内部にノズルを挿入し、このノズルか
ら固化剤液を圧出して行う場合、ノズルを石綿層２面に
強く押付けて、ノズル先端を石綿層内部に挿入する。他
方、石綿層表面にノズルを密着させ、このノズルから固
化剤液を圧出して行う場合、ノズルを石綿層２の表面に
強く押付けてノズル端と石綿層２の表面との間に隙間を
作らないようにする。後者の場合、より密着させるため
に、ノズルを広口にし、その口の周辺に石綿層面と密封
させるシール材を配設することが好ましい。The nozzle is operated according to the forced injection mode of the solidifying agent liquid. For example, when a nozzle is inserted into the asbestos layer and the solidifying agent liquid is forced out from the nozzle, the nozzle is strongly pressed against the two surfaces of the asbestos layer and the tip of the nozzle is inserted into the asbestos layer. On the other hand, when the nozzle is brought into close contact with the surface of the asbestos layer and the solidifying agent liquid is forced out from this nozzle, the nozzle is strongly pressed against the surface of the asbestos layer 2 to create a gap between the nozzle end and the surface of the asbestos layer 2. Make sure not to. In the latter case, in order to achieve better contact, it is preferable that the nozzle has a wide mouth and that a sealing material is provided around the mouth to seal the surface of the asbestos layer.
この発明の装置は、上記の例に限定されず、種々の変形
例が可能である。例えば、この発明におけるノズルは、
第１図に示す様な円錐型に限定されず、第２図に示す様
な刃物状にすることのできる。この態様により、注入箇
所を線形に行うことができ、固化後に剥離道具として兼
用することができる。The device of the present invention is not limited to the above example, and various modifications are possible. For example, the nozzle in this invention is
It is not limited to the conical shape as shown in FIG. 1, but can be shaped as a knife as shown in FIG. 2. With this embodiment, the injection site can be linearly applied, and after solidification, it can also be used as a peeling tool.
上記の様な構成を有するこの発明では、注入・含浸され
た石綿固化剤液が、石綿層の内部まで確実に行き亙り、
自らとまたは石綿と反応して、凝集し、石綿繊維と絡み
合う。石綿繊維と絡み合った固化剤が、建造物に吹付け
られた石綿層の飛散を防止する。更に、石綿層を剥離す
る作業においては、内部から石綿繊維片が飛散するのを
防止する。In this invention having the above configuration, the injected and impregnated asbestos solidifying agent solution reliably reaches the inside of the asbestos layer,
It reacts with itself or with asbestos, aggregates, and becomes intertwined with asbestos fibers. The solidifying agent intertwined with asbestos fibers prevents the asbestos layer sprayed on buildings from scattering. Furthermore, during the work of peeling off the asbestos layer, asbestos fiber pieces are prevented from scattering from inside.
上記の構成および作用を有するこの発明は、以下の効果
を有する。This invention having the above configuration and operation has the following effects.
（イ） この発明の石綿飛散防止により、吹付けられた
石綿層、特に内部が、固化されてその石綿繊維片の飛散
を防止する。更に、石綿層の剥離作業の際に、石綿繊維
片の飛散が実質的に無くし、人体への悪影響をなくする
ことができる。(a) The asbestos scattering prevention method of the present invention solidifies the sprayed asbestos layer, especially the inside, and prevents the asbestos fiber pieces from scattering. Furthermore, during the asbestos layer peeling operation, scattering of asbestos fiber pieces is substantially eliminated, thereby eliminating any adverse effects on the human body.
この発明を、以下の例を参照して具体的に説明する。 The invention will be specifically explained with reference to the following examples.
実施例１ 下記組成の石綿固化剤液を調製した。Example 1 An asbestos solidifying agent liquid having the following composition was prepared.
組成（重量２６）
ポリビニルアルコール １０（固形分）アル
キルナフタレンスルホン酸塩 １
水 ８９第１
図に示す装置を用いて、コンクリート壁に吹付けられた
厚さ２０ｍｍの石綿層に、上記の石綿固化剤液を注入し
た。この装置の噴出ノズルは、２５０Ｘ２５０ｍｍの支
持具に５０ｍｍ間隔で計２５個設けられている。石綿固
化剤液の注入量は１０ｋｇ／ｒｒｆであった。Composition (weight 26) Polyvinyl alcohol 10 (solid content) Alkylnaphthalene sulfonate 1 Water 89 No. 1
Using the apparatus shown in the figure, the above asbestos hardening agent solution was injected into a 20 mm thick asbestos layer sprayed onto a concrete wall. A total of 25 jet nozzles of this device are provided at 50 mm intervals on a 250 x 250 mm support. The injection amount of the asbestos solidifying agent liquid was 10 kg/rrf.
乾燥後にスフレイパーなどの道具で固化した石綿層を剥
離したところ、その剥離作業中に石綿繊維片の飛散が殆
どなかった。After drying, when the solidified asbestos layer was peeled off using a tool such as a scraper, almost no asbestos fiber pieces were scattered during the peeling process.
実施例２
下記組成の石綿固化剤液を用いたこと以外、実施例１と
同様に作業した。Example 2 The same procedure as in Example 1 was carried out except that an asbestos solidifying agent liquid having the following composition was used.
組成（ｆｆｉ量％）
酢酸ビニル樹脂エマルジョン ２０（固形分）アル
キルナフタレンスルホン酸塩 ｌ
水 ７９乾燥
後にスフレイパーなどの道具で固化した石綿層を剥離し
たところ、その剥離作業中に石綿繊維片の飛散が殆どな
かった。Composition (ffi amount %) Vinyl acetate resin emulsion 20 (solid content) Alkylnaphthalene sulfonate 1 Water 79 After drying, the solidified asbestos layer was peeled off with a tool such as a spatula parlor, and asbestos fiber pieces were scattered during the peeling process. There were hardly any.
実施例３
下記組成の石綿固化剤液および硬化剤を用い、これらの
液を注入ｍ１０Ｋｇ／ｒｙｆで順次注入したこと以外、
実施例１と同様に作業した。Example 3 An asbestos solidifying agent liquid and a hardening agent having the following compositions were used, except that these liquids were sequentially injected at an injection rate of 10 kg/ryf.
The work was carried out in the same manner as in Example 1.
石綿固化剤液の組成（重量％）
エポキシ樹脂 ５０トルエン
５０硬化剤の組成（重量％）
ポリアミド樹脂 ３０トルエン
７０硬化後クレイパーなどの道具で
固化した石綿層を剥離したところ、その剥離作業中に石
綿繊維片の飛散が殆どなかった。Composition of asbestos solidifying agent liquid (weight%) Epoxy resin 50 Toluene
50 Composition of curing agent (wt%) Polyamide resin 30 Toluene
When the solidified asbestos layer was peeled off with a tool such as a scraper after curing for 70 minutes, almost no asbestos fiber pieces were scattered during the peeling process.
第１図はこの発明の装置の態様を示す概念図であり、第
２図は変形例の装置の態様を示す概念図である。
１・・・石綿飛散防止装置、２・・・石綿層、３・・・
ノズル、４・・・圧送装置、５・・・導管、６・・・タ
ンク、７・・・固化剤液。
出願人代理人 佐 藤 −雄FIG. 1 is a conceptual diagram showing an aspect of the apparatus of the present invention, and FIG. 2 is a conceptual diagram showing an aspect of a modified example of the apparatus. 1... Asbestos scattering prevention device, 2... Asbestos layer, 3...
Nozzle, 4... Pressure feeding device, 5... Conduit, 6... Tank, 7... Solidifying agent liquid. Applicant's agent Mr. Sato
Claims (1)
強制的に注入して含浸させ、石綿層を固化して石綿の飛
散を防止し、必要に応じて固化された石綿層を剥離する
石綿飛散防止方法。 ２、固化剤液の強制的注入を、石綿層内部にノズルを挿
入し、該ノズルから固化剤液を圧出して行う特許請求の
範囲第１項記載の方法。 ３、固化剤液の強制的注入を、石綿層表面にノズルを密
着させ、該ノズルから固化剤液を圧出して行う特許請求
の範囲第１項記載の方法。 ４、石綿固化剤液が、合成樹脂および／または合成ゴム
からなる特許請求の範囲第１項乃至第３項のいずれか１
項に記載の方法。 ５、石綿固化剤液が、合成樹脂の溶液またはエマルジョ
ンである特許請求の範囲第１項乃至第４項のいずれか１
項に記載の方法。 ６、石綿固化剤液が熱硬化性合成樹脂からなり、石綿層
の固化を加熱により行う特許請求の範囲第１項乃至第５
項のいずれか１項に記載の方法。 ７、石綿固化剤液がエネルギー線硬化性合成樹脂からな
り、石綿層の固化をエネルギー線照射により行う特許請
求の範囲第１項乃至第５項のいずれか１項に記載の方法
。 ８、石綿固化剤液が化学的硬化性合成樹脂からなり、石
綿層の固化を硬化剤注入により行う特許請求の範囲第１
項乃至第５項のいずれか１項に記載の方法。 ９、建造物に吹付けられた石綿層内部に向けて石綿固化
剤液を押出すノズルと、該ノズルを移動しかつ保持する
ノズル支持具と、導管を介して石綿固化剤液をノズルに
圧送する装置とからなる石綿飛散防止装置。 １０、多数のノズルが、石綿層面の形状に合せて配列さ
れている特許請求の範囲第９項記載の石綿飛散防止装置
。 １１、ノズルが、刃物状に形成されている特許請求の範
囲第９項記載の石綿飛散防止装置。 １２、ノズルが、その広口の周辺に石綿層面との密封部
材が配設されている特許請求の範囲第９項記載の石綿飛
散防止装置。 １３、石綿固化剤液を圧送装置に供給し、貯留するタン
クを有する特許請求の範囲第９項乃至第１２項のいずれ
か１項に記載の石綿飛散防止装置。[Claims] 1. Forcibly inject and impregnate the asbestos solidifying agent liquid into the asbestos layer sprayed on the building, solidify the asbestos layer and prevent asbestos from scattering, and as needed. A method to prevent asbestos scattering by peeling off the solidified asbestos layer. 2. The method according to claim 1, wherein the solidifying agent liquid is forcibly injected by inserting a nozzle into the asbestos layer and forcing out the solidifying agent liquid from the nozzle. 3. The method according to claim 1, wherein the forcible injection of the solidifying agent liquid is carried out by bringing a nozzle into close contact with the surface of the asbestos layer and forcing out the solidifying agent liquid from the nozzle. 4. Any one of claims 1 to 3, wherein the asbestos solidifying agent liquid is made of synthetic resin and/or synthetic rubber.
The method described in section. 5. Any one of claims 1 to 4, wherein the asbestos solidifying agent liquid is a synthetic resin solution or emulsion.
The method described in section. 6. Claims 1 to 5, wherein the asbestos solidifying agent liquid is made of a thermosetting synthetic resin, and the asbestos layer is solidified by heating.
The method described in any one of paragraphs. 7. The method according to any one of claims 1 to 5, wherein the asbestos solidifying agent liquid is made of an energy ray-curable synthetic resin, and the asbestos layer is solidified by energy ray irradiation. 8. Claim 1, wherein the asbestos solidifying agent liquid is made of a chemically hardening synthetic resin, and the asbestos layer is solidified by injecting the hardening agent.
6. The method according to any one of items 5 to 5. 9. A nozzle that pushes out the asbestos solidifying agent liquid toward the inside of the asbestos layer sprayed on the building, a nozzle support that moves and holds the nozzle, and a conduit that pumps the asbestos solidifying agent liquid to the nozzle. An asbestos scattering prevention device consisting of a device that 10. The asbestos scattering prevention device according to claim 9, wherein a large number of nozzles are arranged according to the shape of the asbestos layer surface. 11. The asbestos scattering prevention device according to claim 9, wherein the nozzle is formed into a blade shape. 12. The asbestos scattering prevention device according to claim 9, wherein the nozzle is provided with a sealing member for sealing the surface of the asbestos layer around the wide opening of the nozzle. 13. The asbestos scattering prevention device according to any one of claims 9 to 12, which has a tank for supplying and storing the asbestos solidifying agent liquid to the pressure feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62297393A JP2625449B2 (en) | 1987-11-27 | 1987-11-27 | Method for separating asbestos layer sprayed on a building and apparatus for solidifying and separating asbestos layer provided with multiple nozzles used for the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62297393A JP2625449B2 (en) | 1987-11-27 | 1987-11-27 | Method for separating asbestos layer sprayed on a building and apparatus for solidifying and separating asbestos layer provided with multiple nozzles used for the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01141847A true JPH01141847A (en) | 1989-06-02 |
| JP2625449B2 JP2625449B2 (en) | 1997-07-02 |
Family
ID=17845910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62297393A Expired - Lifetime JP2625449B2 (en) | 1987-11-27 | 1987-11-27 | Method for separating asbestos layer sprayed on a building and apparatus for solidifying and separating asbestos layer provided with multiple nozzles used for the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2625449B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005110632A1 (en) * | 2004-05-17 | 2005-11-24 | Innoventions S.R.L. | Method for the impregnation of asbestos in view of the removal, transport and disposal thereof |
| JP2007146566A (en) * | 2005-11-30 | 2007-06-14 | Kikusui Chemical Industries Co Ltd | Decorating method |
| JP2007197248A (en) * | 2006-01-26 | 2007-08-09 | Shiyouichi Yoshino | Asbestos component scattering prevention structure |
| JP2007295942A (en) * | 2006-02-24 | 2007-11-15 | Miura Co Ltd | Treatment agent for asbestos-containing material and treating method of asbestos-containing material |
| JP2007308871A (en) * | 2006-02-01 | 2007-11-29 | Street Design:Kk | Treating method for making asbestos harmless |
| JP2008201609A (en) * | 2007-02-19 | 2008-09-04 | Shiozakigumi:Kk | Method for confining asbestos material and method for enclosing asbestos material |
| JP2011161432A (en) * | 2010-01-18 | 2011-08-25 | Shimizu Corp | Electrode type injection device |
| US8835707B2 (en) | 2007-03-12 | 2014-09-16 | Street Design Corp. | Method of asbestos detoxification |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01138184A (en) * | 1987-11-25 | 1989-05-31 | Kikusui Kagaku Kogyo Kk | Solidification of asbestos coated layer |
-
1987
- 1987-11-27 JP JP62297393A patent/JP2625449B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01138184A (en) * | 1987-11-25 | 1989-05-31 | Kikusui Kagaku Kogyo Kk | Solidification of asbestos coated layer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005110632A1 (en) * | 2004-05-17 | 2005-11-24 | Innoventions S.R.L. | Method for the impregnation of asbestos in view of the removal, transport and disposal thereof |
| JP2007146566A (en) * | 2005-11-30 | 2007-06-14 | Kikusui Chemical Industries Co Ltd | Decorating method |
| JP2007197248A (en) * | 2006-01-26 | 2007-08-09 | Shiyouichi Yoshino | Asbestos component scattering prevention structure |
| JP2007308871A (en) * | 2006-02-01 | 2007-11-29 | Street Design:Kk | Treating method for making asbestos harmless |
| JP2007295942A (en) * | 2006-02-24 | 2007-11-15 | Miura Co Ltd | Treatment agent for asbestos-containing material and treating method of asbestos-containing material |
| JP2008201609A (en) * | 2007-02-19 | 2008-09-04 | Shiozakigumi:Kk | Method for confining asbestos material and method for enclosing asbestos material |
| US8835707B2 (en) | 2007-03-12 | 2014-09-16 | Street Design Corp. | Method of asbestos detoxification |
| JP5676099B2 (en) * | 2007-03-12 | 2015-02-25 | 株式会社ストリートデザイン | Harmless treatment method for asbestos |
| JP2011161432A (en) * | 2010-01-18 | 2011-08-25 | Shimizu Corp | Electrode type injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2625449B2 (en) | 1997-07-02 |
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