JPH11200639A - How to remove sprayed asbestos - Google Patents
How to remove sprayed asbestosInfo
- Publication number
- JPH11200639A JPH11200639A JP120998A JP120998A JPH11200639A JP H11200639 A JPH11200639 A JP H11200639A JP 120998 A JP120998 A JP 120998A JP 120998 A JP120998 A JP 120998A JP H11200639 A JPH11200639 A JP H11200639A
- Authority
- JP
- Japan
- Prior art keywords
- asbestos
- sprayed
- water
- pressure
- nozzle
- 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.)
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Abstract
(57)【要約】
【課題】 鉄骨柱などに吹き付けられた石綿を剥がす場
合、時間と労力を低減でき、剥離作業効率を向上できる
だけでなく作業環境も改善でき、工期も短縮でき、全体
のコストも低減でき、さらに、高圧噴流水を使用して剥
離する場合に、水の無駄を省き、効率よく剥離でき、建
物内の各所で容易に実施可能なものにできる。
【解決手段】 建物内の天井、壁などの部位に吹き付け
られている石綿４に高圧噴流水発生装置のノズル21から
噴射する高水圧の噴流水を吹き付け、水の高水圧により
石綿を吹き飛ばし剥離させる吹付石綿の剥離方法におい
て、石綿４が吹き付けられている部位への前記ノズル21
の噴射角度を30〜45度とし、石綿４が吹き付けられてい
る部位と前記ノズル21の距離を20〜30ｃｍとして、ノズ
ル21の先端から圧力500 〜1000Ｋｇｆ／ｃｍ2 、水量５
〜10リットル／ｍｉｎの噴流水を石綿４が吹き付けられ
ている部位へ吹き付けて石綿を剥離落下する。
(57) [Summary] [Problem] When peeling asbestos sprayed on a steel column or the like, not only can time and labor be reduced, the peeling work efficiency can be improved, but also the work environment can be improved, the construction period can be shortened, and the overall cost can be reduced. In addition, when stripping is performed by using high-pressure jet water, wasteful water can be eliminated, stripping can be performed efficiently, and the stripping can be easily performed at various places in the building. SOLUTION: High water pressure jet water jetted from a nozzle 21 of a high pressure jet water generator is sprayed on asbestos 4 sprayed on a ceiling, a wall or the like in a building, and the asbestos is blown off by the high water pressure of water to separate. In the method of peeling sprayed asbestos, the nozzle 21 is moved to a portion where the asbestos 4 is sprayed.
The injection angle of the nozzle 21 is set to 30 to 45 degrees, the distance between the portion where the asbestos 4 is sprayed and the nozzle 21 is set to 20 to 30 cm, the pressure from the tip of the nozzle 21 is 500 to 1000 kgf / cm 2 , and the water amount is 5
A jet water of 1010 liters / min is sprayed on the portion where the asbestos 4 is sprayed to peel and fall the asbestos.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建物内の天井や壁
などに吹き付けられている石綿の剥離方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing asbestos from a ceiling or a wall in a building.
【０００２】[0002]
【従来の技術】建物等の構造物の天井、壁、梁、床のデ
ッキプレートなどの部位に断熱材、吸音材、耐火材とし
て、従来、石綿が吹き付けられてきたが、この吹付石綿
の粉塵を呼吸すると肺癌などの疾病発生のおそれのある
ことが判明し、現在では法律により使用が禁止され、既
に使用されている吹付石綿については特別管理産業廃棄
物として適正に処理することが義務づけられている。2. Description of the Related Art Conventionally, asbestos has been sprayed as a heat insulating material, a sound absorbing material, and a fireproof material on portions such as ceilings, walls, beams, and floor deck plates of structures such as buildings. It has been found that breathing can cause diseases such as lung cancer.Currently, use is prohibited by law, and sprayed asbestos that has already been used must be properly treated as specially managed industrial waste. I have.
【０００３】そこで、現在使用中の建物、改修前の建
物、解体する建物などにおいて吹付石綿を剥離により処
理している。図６はその一例を示し、建物内の鉄骨柱１
や鉄骨梁２に耐火被覆３として既に吹き付けられた石綿
４を剥離回収する場合で、作業空間をシート５などの遮
蔽物で囲み閉鎖空間６として、この内部を石綿の飛散防
止のために負圧にし、作業員７がケレン棒30や皮すきな
どの治具を手で持ち作業台31上に乗って、このケレン棒
30で石綿４を鉄骨柱１や鉄骨梁２から手作業で剥がして
いる。[0003] Therefore, sprayed asbestos is treated by peeling in a building currently in use, a building before renovation, a building to be demolished, and the like. FIG. 6 shows an example of this, and a steel column 1 in a building is shown.
When the asbestos 4 already sprayed as the fireproof coating 3 on the steel beam 2 is peeled off and collected, the working space is surrounded by a shield such as a sheet 5 and the closed space 6 is formed. Then, the worker 7 holds the jig such as the Keren stick 30 and the scalpel by hand and rides on the work table 31,
At 30, asbestos 4 is manually peeled off from the steel column 1 and the steel beam 2.
【０００４】ケレン棒30は図７に示すように丸棒などに
よる握り棒30ａの先端に平べったい矩形のケレン刃物30
ｂを取り付けたものであり、このケレン刃物30ｂで石綿
４を鉄骨柱１や鉄骨梁２から削ぎ落とすようにする。図
中９は床コンクリート、32はこの床コンクリート９の上
に落下した落下石綿、33は閉鎖空間６内で空中に浮遊し
ている石綿の粉塵である。[0007] As shown in FIG. 7, the Keren bar 30 is a rectangular Keren blade 30 which is flat at the tip of a grip bar 30 a such as a round bar.
b, and the asbestos 4 is scraped off from the steel column 1 and the steel beam 2 by the Keren blade 30b. In the figure, 9 is floor concrete, 32 is falling asbestos dropped on the floor concrete 9, and 33 is asbestos dust floating in the air in the closed space 6.
【０００５】[0005]
【発明が解決しようとする課題】ケレン棒30で削ぎ落と
す人手による作業は時間と労力を要してコストが嵩む。
また、閉鎖された空間内での作業となるため、この閉鎖
空間６内に剥離した石綿４の粉塵33が立ち込め、これに
加えて夏季には50℃もの高温の環境下での作業となるな
ど、作業環境が劣悪で作業は苛酷なものとなる。The manual operation of shaving off with the Keren bar 30 requires time and labor and increases the cost.
In addition, since the work is performed in a closed space, the dust 33 of the asbestos 4 that has separated comes into the closed space 6, and in addition, the work is performed in a high temperature environment of 50 ° C. in summer. The working environment is poor and the work is severe.
【０００６】鉄骨柱１などの剥離面に飛散防止剤などの
薬品を塗布して石綿の粉塵が飛散しないようにして剥離
作業を行うこともあるが、効果的ではない。A peeling operation may be performed by applying a chemical such as an anti-scattering agent to the peeled surface of the steel pillar 1 or the like so as to prevent asbestos dust from scattering, but this is not effective.
【０００７】本発明の目的は前記従来例の不都合を解消
し、鉄骨柱などに吹き付けられた石綿を剥がす場合、時
間と労力を低減でき、剥離作業効率を向上できるだけで
なく作業環境も改善でき、工期も短縮でき、全体のコス
トも低減でき、さらに、高圧噴流水を使用して剥離する
場合に、水の無駄を省き、効率よく剥離でき、建物内の
各所で容易に実施可能な吹付石綿の剥離方法を提供する
ことにある。An object of the present invention is to eliminate the disadvantages of the prior art, and to remove asbestos sprayed on a steel column or the like, it is possible to reduce time and labor, not only to improve the efficiency of peeling work, but also to improve the working environment. The construction period can be shortened, the overall cost can be reduced, and when peeling using high-pressure jet water, water can be eliminated, the peeling can be performed efficiently, and spraying asbestos that can be easily carried out in various places in the building It is to provide a peeling method.
【０００８】[0008]
【課題を解決するための手段】本発明は前記目的を達成
するため、第１に、建物内の天井、壁などの部位に吹き
付けられている石綿に高圧噴流水発生装置のノズルから
噴射する高水圧の噴流水を吹き付け、水の高水圧により
石綿を吹き飛ばし剥離させる吹付石綿の剥離方法におい
て、石綿が吹き付けられている部位への前記ノズルの噴
射角度を30〜45度とし、石綿が吹き付けられている部位
と前記ノズルの距離を20〜30ｃｍとして、ノズル先端か
ら圧力500 〜1000Ｋｇｆ／ｃｍ2 、水量５〜10リットル
／ｍｉｎの噴流水を石綿が吹き付けられている部位へ吹
き付けて石綿を剥離落下することを要旨とするものであ
る。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention firstly sets a high pressure jet sprayed from a nozzle of a high-pressure jet water generator on asbestos sprayed on a ceiling or a wall of a building. In a method of removing asbestos by spraying water jet water and blowing off asbestos by high water pressure of water, the spray angle of the nozzle to a portion where asbestos is sprayed is 30 to 45 degrees, and asbestos is sprayed. Assuming that the distance between the part and the nozzle is 20 to 30 cm, a jet water having a pressure of 500 to 1000 Kgf / cm 2 and a water amount of 5 to 10 liter / min is sprayed from the tip of the nozzle to the part to which the asbestos is blown to separate and drop the asbestos. The gist is that.
【０００９】第２に、ノズルから噴射する噴流水の噴射
角度は水平方向で30〜40度に設定すること、第３に、高
圧噴流水発生装置は、移動自在な架台上に配電盤、駆動
装置、動力伝達装置を介して前記駆動装置に連結した高
圧ポンプ、該高圧ポンプにそれぞれ接続した給水タンク
と圧力調整機を載置し、該圧力調整機に噴射銃を接続し
たことを要旨とするものである。Second, the jet angle of the jet water jetted from the nozzle is set at 30 to 40 degrees in the horizontal direction. Third, the high-pressure jet water generator is provided with a switchboard and a drive unit on a movable base. A high-pressure pump connected to the driving device via a power transmission device, a water supply tank connected to the high-pressure pump and a pressure regulator, and an injection gun connected to the pressure regulator. It is.
【００１０】請求項１記載の本発明によれば、建物内の
天井、壁などの部位に吹き付けられている石綿に、ノズ
ルから噴射する高水圧の噴流水を吹き付け、水の高水圧
により石綿を吹き飛ばす場合、石綿が吹き付けられてい
る部位へのノズル先端からの噴流水の圧力を500 〜1000
Ｋｇｆ／ｃｍ2 としたとき、水流が５リットル／ｍｉｎ
以上であれば、剥離効率がよいが、水流が 10 リットル
／ｍｉｎ以上になると、余剰水が多量に発生し、多量の
水を消費することになる。よって、圧力500 〜1000Ｋｇ
ｆ／ｃｍ2 で水量５〜10リットル／ｍｉｎに設定するこ
とで剥離効率を良好なものにできるとともに、余剰水の
発生を抑え、剥離された吹付石綿に程よく含水できる。
さらに、ノズルの噴射角度を30〜40度、ノズルと石綿が
吹き付けられている部位との距離を20〜30cmとすること
により、前記圧力500 〜1000Ｋｇｆ／ｃｍ2 、水量５〜
10リットル／ｍｉｎとしたことが実効的なものとなり、
必要最少の水で効率よく剥離でき、石綿の飛散を防止で
きる。According to the first aspect of the present invention, high water pressure jet water jetted from a nozzle is sprayed on asbestos sprayed on a ceiling, a wall, or the like in a building, and the asbestos is blown by the high water pressure. When blowing off, increase the pressure of the jet water from the nozzle tip to the part where asbestos is sprayed from 500 to 1000
When Kgf / cm 2 , the water flow is 5 l / min
If it is above, the peeling efficiency is good, but if the water flow is 10 liter / min or more, a large amount of surplus water is generated and a large amount of water is consumed. Therefore, the pressure is 500-1000Kg
By setting the water amount to 5 to 10 liters / min at f / cm 2 , the peeling efficiency can be improved, the generation of excess water can be suppressed, and the peeled sprayed asbestos can appropriately contain water.
Further, by setting the injection angle of the nozzle to 30 to 40 degrees and the distance between the nozzle and the portion where the asbestos is sprayed to 20 to 30 cm, the pressure is 500 to 1000 kgf / cm 2 and the water amount is 5 to 5 kg.
10 liter / min is effective,
It can be efficiently peeled off with a minimum amount of water, and scattering of asbestos can be prevented.
【００１１】請求項２記載の本発明によれば、前記作用
に加えて、ノズルから噴射する噴流水の噴射角度を水平
方向で30〜40度に設定することにより、噴射圧が各部均
等となり、剥離ムラが生ぜず、剥離効率をよいものにで
きる。また、ノズルの噴射方向を左右に移動すれば、剥
離幅を容易に広げられる。According to the second aspect of the present invention, in addition to the above operation, by setting the jet angle of the jet water jetted from the nozzle to 30 to 40 degrees in the horizontal direction, the jet pressure becomes uniform at each portion, Uneven peeling does not occur, and the peeling efficiency can be improved. In addition, if the ejection direction of the nozzle is moved left and right, the peeling width can be easily widened.
【００１２】請求項３記載の本発明によれば、前記作用
に加えて、剥離に必要な機器を架台上にコンパクトにま
とめて搭載したから、容易に移動でき、作業性がよい。
また、同じ建物内でも各所に簡単に移動できる。According to the third aspect of the present invention, in addition to the above-mentioned functions, since the devices necessary for peeling are compactly mounted on the gantry, they can be easily moved and workability is good.
Also, you can easily move to various places in the same building.
【００１３】[0013]
【発明の実施の形態】以下、図面について本発明の実施
の形態を詳細に説明する。図１は本発明の吹付石綿の剥
離方法の実施の形態を示すノズルと吹付石綿の位置関係
を示す説明図で、まず、本発明方法の全体構成を図５に
ついて説明する。なお、図５において既に説明した図６
の従来例と同一の構成要素には同一の参照符号を付して
ある。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view showing a positional relationship between a nozzle and a sprayed asbestos showing an embodiment of a sprayed asbestos peeling method according to the present invention. Note that FIG. 6 already described in FIG.
The same components as those of the conventional example are denoted by the same reference numerals.
【００１４】本発明方法でも従来と同様に建物内の鉄骨
柱１や鉄骨梁２に耐火被覆３して既に吹き付けられた石
綿４に対し、これを剥離回収する方法として、まず、作
業空間をシート５などの遮蔽物で囲み閉鎖空間６とし
て、この内部を石綿４の飛散防止のために例えば＜0.2
ｍｍＡｑの負圧にする。In the method of the present invention, as in the prior art, as a method of peeling and recovering the asbestos 4 which has already been sprayed with the fire-resistant coating 3 on the steel column 1 and the steel beam 2 in the building, the work space is firstly sheeted. And a closed space 6 surrounded by a shield such as 5 to prevent asbestos 4 from scattering.
A negative pressure of mmAq is set.
【００１５】この閉鎖空間６内に高圧噴流水発生装置９
を搬入する。この高圧噴流水発生装置９は車輪10を有す
る架台11上に高圧噴流水を発生させるための各種の機器
を搭載したもので、図３に示すように動力源としてモー
タなどの駆動装置12にベルトなどによる動力伝達装置13
を介して高圧ポンプ14を連結した。該高圧ポンプ14には
給水タンク15が給水パイプまたは給水ホースにより接続
されており、この給水タンク15に給水パイプまたは給水
ホース22によって水道水や工業用水16が供給される。In this closed space 6, a high-pressure jet water generator 9 is provided.
Carry in. This high-pressure jet water generating device 9 is equipped with various devices for generating high-pressure jet water on a gantry 11 having wheels 10 and, as shown in FIG. Power transmission device 13
The high pressure pump 14 was connected via the. A water supply tank 15 is connected to the high-pressure pump 14 by a water supply pipe or a water supply hose. Tap water or industrial water 16 is supplied to the water supply tank 15 by a water supply pipe or a water supply hose 22.
【００１６】そして、高圧ポンプ14を高圧パイプを介し
て圧力調整機17に接続する。図中20は起動機、漏電遮断
機などが配設された配電盤を示す。前記した各機器が架
台11に搭載されるもので、該圧力調整機17に、先端にノ
ズル有する噴射銃18を高圧ホース19を介して接続した。Then, the high pressure pump 14 is connected to the pressure regulator 17 via a high pressure pipe. In the figure, reference numeral 20 denotes a switchboard on which a starter, an earth leakage breaker and the like are provided. Each of the above-mentioned devices is mounted on the gantry 11, and an injection gun 18 having a nozzle at the tip is connected to the pressure regulator 17 via a high-pressure hose 19.
【００１７】前記噴射銃18は図４に示すように砲身18ａ
の根元部にレバー18ｂとグリップ18ｃを設け、途中に把
手18ｄを設け、先端に高圧噴流水を噴射するノズル21を
設けた。そして、このノズル21は図２に示すように噴射
方向が水平方向となる平射ノズルに形成し、噴射方向は
水平方向で20〜30度に設定してある。The injection gun 18 has a barrel 18a as shown in FIG.
A lever 18b and a grip 18c are provided at the root of the, a handle 18d is provided on the way, and a nozzle 21 for jetting high-pressure jet water is provided at the tip. As shown in FIG. 2, the nozzle 21 is formed as a flat spray nozzle having a horizontal injection direction, and the injection direction is set at 20 to 30 degrees in the horizontal direction.
【００１８】かかる高圧噴流水発生装置９を使用して閉
鎖空間６内で鉄骨柱１や鉄骨梁２に耐火被覆３として既
に吹き付けられた石綿４を剥離回収するには、給水パイ
プまたは給水ホース22によって給水タンク15に送った水
道水や工業用水16を、駆動装置12により駆動される高圧
ポンプ14に送り、ここで高圧にする。In order to separate and recover the asbestos 4 already sprayed as the fireproof coating 3 on the steel column 1 and the steel beam 2 in the enclosed space 6 using the high-pressure jet water generator 9, a water supply pipe or a water supply hose 22 is used. The tap water or industrial water 16 sent to the water supply tank 15 is sent to the high-pressure pump 14 driven by the driving device 12, where the pressure is increased.
【００１９】そして、高圧水を高圧パイプを介して圧力
調整機17に送り、500 〜1000Ｋｇｆ／ｃｍ2 の高圧水に
調整して高圧ホース19から噴射銃18に供給する。Then, the high-pressure water is sent to a pressure regulator 17 through a high-pressure pipe, adjusted to a high-pressure water of 500 to 1000 kgf / cm 2 , and supplied from a high-pressure hose 19 to a spray gun 18.
【００２０】作業員７は作業台31に乗り、噴射銃18のレ
バー18ｂとグリップ18ｃを一方の手で握り、他方の手で
把手18ｄを持って噴射銃18を支え、先端のノズル21を剥
がそうとする石綿４に向け、レバー18ｂを引いて、ノズ
ル21から水量５〜10リットル／ｍｉｎの高圧噴流水を噴
射してこれを石綿４に吹き付ける。The operator 7 rides on the worktable 31, holds the lever 18b and the grip 18c of the spray gun 18 with one hand, holds the handle 18d with the other hand, supports the spray gun 18, and peels off the nozzle 21 at the tip. The lever 18 b is pulled toward the asbestos 4 to be sprayed, and high-pressure jet water having a water amount of 5 to 10 liter / min is jetted from the nozzle 21 and sprayed on the asbestos 4.
【００２１】また、このときの、ノズル21と石綿４が吹
き付けられている天井や壁との角度は図１に示すように
30〜45度となるように噴射銃18を斜めに支え、ノズル21
の先端と石綿の吹き付け面との距離は20〜30ｃｍに保
つ。At this time, the angle between the nozzle 21 and the ceiling or wall on which the asbestos 4 is sprayed is as shown in FIG.
Support the spray gun 18 at an angle of 30 to 45 degrees,
The distance between the tip of the asbestos and the sprayed surface of asbestos is kept at 20 to 30 cm.
【００２２】吹き付けられた石綿４はこの状態で高圧噴
流水の水圧によって吹き飛ばされ剥離する。剥離した石
綿は吹き付けられた噴流水によって水分を含んだものと
なり、粉塵として飛散することなく、含水石綿23となっ
て床コンクリート８上に落下する。かりに粉塵として飛
散してもノズル21から噴射される水滴が粉塵に付着し、
これにより粉塵は空中に浮遊することなく落下する。In this state, the sprayed asbestos 4 is blown off by the water pressure of the high-pressure jet water and separated. The exfoliated asbestos becomes water-containing by the sprayed jet water, and falls on the floor concrete 8 as hydrated asbestos 23 without being scattered as dust. Even if it scatters as dust, water droplets sprayed from the nozzle 21 adhere to the dust,
As a result, the dust falls without floating in the air.
【００２３】この状態で作業員７は剥離状態を確認しな
がらノズル21を移動させ、また、作業員６自身も移動し
て作業する。この場合、ノズル21から噴射する噴流水の
噴射角度を水平方向で30〜40度のものにしてあるから、
前記のような水圧と水量で噴射した場合に、噴射圧が各
部で均等になり、剥離ムラが発生しない。また、ノズル
21を左右に向けることで剥離幅を容易に広げられる。In this state, the worker 7 moves the nozzle 21 while checking the peeling state, and the worker 6 also moves and works. In this case, since the jet angle of the jet water jetted from the nozzle 21 is 30 to 40 degrees in the horizontal direction,
When the injection is performed with the water pressure and the water amount as described above, the injection pressure is equalized in each part, and the peeling unevenness does not occur. Also the nozzle
By turning 21 left and right, the peeling width can be easily widened.
【００２４】床に落下した含水石綿23は、別途用意した
真空掃除機のバキュームホース24で吸い取りバキューム
車に回収する。よって、バキューム車への回収工程でも
含水石綿23は床面から真空掃除機で直ちに吸い取られる
から散乱することがない。The hydrated asbestos 23 that has fallen on the floor is sucked by a vacuum hose 24 of a separately prepared vacuum cleaner and collected in a vacuum truck. Therefore, even in the step of collecting the asbestos in the vacuum car, the hydrated asbestos 23 is immediately sucked off from the floor by the vacuum cleaner, so that it is not scattered.
【００２５】ここで、高圧水の圧力を500 〜1000Ｋｇｆ
／ｃｍ2 としたのは、吹き付けられた石綿４の下地面へ
の付着力は吹付方法や材料の混合にもよるが、一般的に
水圧が500 〜1000Ｋｇｆ／ｃｍ2 であれば効率よく剥離
できるためである。Here, the pressure of the high-pressure water is set to 500 to 1000 kgf.
/ Cm 2 and was of the adhesion to the underlying surface of the sprayed asbestos 4 depending on the mixing of the spray method and materials, generally water pressure can peel efficiently if 500 ～1000Kgf / cm 2 That's why.
【００２６】また、水量を５〜10リットル／ｍｉｎとし
たのは、５リットル／ｍｉｎ以下では作業空間中に飛散
する石綿が多くなり、一方、10リットル／ｍｉｎ以上で
は剥離効率は非常に良好であるが、剥離した石綿４に含
水しきれない余剰水が発生し、床が水浸しになるだけで
なく、回収のためのバキュームの吸い上げ量が多くな
り、その貯蔵タンクに不要な水が入って回収効率が低下
するためである。The reason why the amount of water is set to 5 to 10 liters / min is that asbestos scattered into the working space is increased when the amount is 5 liters / min or less, while the peeling efficiency is very good when the amount is 10 liters / min or more. However, excess water that cannot be completely contained in the asbestos 4 that has peeled off is generated, which not only causes the floor to be flooded, but also increases the suction volume of the vacuum for recovery and collects unnecessary water in the storage tank. This is because the efficiency is reduced.
【００２７】この水圧と水量との関係を次の表１に示
す。The relationship between the water pressure and the water amount is shown in Table 1 below.
【００２８】[0028]
【表１】 [Table 1]
【００２９】シート５で囲んだ閉鎖空間６内での剥離回
収作業が終了すれば、高圧噴流水発生装置９を建物内の
別の作業空間に移動する。このとき、高圧噴流水発生装
置９をは車輪10を備え、各種の機器は架台11上に搭載し
てコンパクトにまとめてあるから、簡単に移動でき、建
物内の各所で容易に使用できる。When the separation and collection operation in the closed space 6 surrounded by the sheet 5 is completed, the high-pressure jet water generator 9 is moved to another working space in the building. At this time, the high-pressure jet water generator 9 is provided with wheels 10 and various devices are mounted on a gantry 11 and are compactly assembled, so that they can be easily moved and used easily in various places in the building.
【００３０】バキューム車に回収した含水石綿23はコン
テナに入れ、廃棄物中間処理場に搬入し、ここでセメン
トと練り混ぜ、ビニールなどの回収袋に収納して密封
し、最終処分場に運搬し処分する。The hydrated asbestos 23 collected in the vacuum truck is put in a container, carried into a waste intermediate treatment plant, mixed with cement, stored in a plastic or other collection bag, sealed, and transported to a final disposal site. dispose.
【００３１】[0031]
【発明の効果】以上述べたように本発明の吹付石綿の剥
離方法は、建物内の天井、壁などの部位に吹き付けられ
ている石綿に、ノズルから噴射する高水圧の噴流水を吹
き付け、水の高水圧により石綿を吹き飛ばす場合、石綿
が吹き付けられている部位への前記ノズルの噴射角度を
30〜45度とし、石綿が吹き付けられている部位と前記ノ
ズルの距離を20〜30ｃｍとして、ノズル先端から圧力50
0 〜1000Ｋｇｆ／ｃｍ2、水量５〜10リットル／ｍｉｎ
の噴流水を石綿が吹き付けられている部位へ吹き付けて
石綿を剥離落下することにより、必要最少の水で効率よ
く剥離でき、石綿の飛散を防止でき、また、余剰水で床
が濡れることもない。As described above, according to the method for removing sprayed asbestos of the present invention, high water pressure jet water sprayed from a nozzle is sprayed on asbestos sprayed on a ceiling or a wall of a building. When the asbestos is blown off by the high water pressure, the injection angle of the nozzle to the part where the asbestos is blown is adjusted.
30 to 45 degrees, the distance between the nozzle where the asbestos is sprayed and the nozzle is 20 to 30 cm, and the pressure is 50
0 to 1000 Kgf / cm 2 , water volume 5 to 10 l / min
The asbestos is sprayed onto the area where asbestos is sprayed, and the asbestos is peeled and dropped, so that it can be efficiently separated with the minimum amount of water required, preventing the asbestos from scattering and preventing the floor from getting wet with excess water. .
【００３２】また、ノズルから噴射する噴流水の噴射角
度を水平方向で30〜40度に設定することにより、噴射圧
が各部均等となり、剥離ムラが生ぜず、剥離効率をよい
ものにできる。また、ノズルの噴射方向を左右に移動す
れば、剥離幅を容易に広げられる。Further, by setting the jet angle of the jet water jetted from the nozzle to 30 to 40 degrees in the horizontal direction, the jet pressure becomes uniform at each portion, and the stripping unevenness does not occur and the stripping efficiency can be improved. In addition, if the ejection direction of the nozzle is moved left and right, the peeling width can be easily widened.
【００３３】さらに、剥離に必要な機器を架台上にコン
パクトにまとめて搭載したから、容易に移動でき、作業
性がよい。また、同じ建物内でも各所に簡単に移動でき
るものである。Furthermore, since the equipment necessary for peeling is mounted compactly on the gantry, it can be easily moved and workability is good. In addition, it can be easily moved to various places in the same building.
【図１】本発明の吹付石綿の剥離方法の実施の形態を示
すノズルと吹付石綿の位置関係を示す説明図である。FIG. 1 is an explanatory diagram showing a positional relationship between a nozzle and sprayed asbestos, showing an embodiment of a method for removing sprayed asbestos of the present invention.
【図２】本発明の吹付石綿の剥離方法で使用するノズル
の平面図である。FIG. 2 is a plan view of a nozzle used in the method for peeling sprayed asbestos of the present invention.
【図３】本発明の吹付石綿の剥離方法で使用する高圧噴
流水発生装置の説明図である。FIG. 3 is an explanatory view of a high-pressure jet water generating apparatus used in the method for peeling sprayed asbestos of the present invention.
【図４】本発明の吹付石綿の剥離方法で使用する噴射銃
の正面図である。FIG. 4 is a front view of an injection gun used in the method for peeling sprayed asbestos of the present invention.
【図５】本発明の吹付石綿の剥離方法の実施の形態を示
す正面図である。FIG. 5 is a front view showing an embodiment of the method for peeling sprayed asbestos of the present invention.
【図６】従来の吹付石綿の剥離方法を示す正面図であ
る。FIG. 6 is a front view showing a conventional method of peeling sprayed asbestos.
【図７】従来の吹付石綿の剥離方法で使用するケレン棒
の正面図である。FIG. 7 is a front view of a Keren stick used in a conventional method of peeling sprayed asbestos.
１…鉄骨柱 ２…鉄骨梁 ３…耐火被覆 ４…石綿 ５…シート ６…閉鎖空間 ７…作業員 ８…床コンクリート ９…高圧噴流水発生装置 10…車輪 11…架台 12…駆動装置 13…動力伝達装置 14…高圧ポンプ 15…給水タンク 16…水道水や工業用
水 17…圧力調整機 18…噴射銃 18ａ…砲身 18ｂ…レバー 18ｃ…グリップ 18ｄ…把手 19…高圧ホース 20…配電盤 21…ノズル 22…給水ホースまた
は給水パイプ 23…含水石綿 24…バキュームホー
ス 30…ケレン棒 30ａ…握り棒 30ｂ…ケレン刃物 31…作業台 32…落下石綿 33…石綿の粉塵DESCRIPTION OF SYMBOLS 1 ... Steel column 2 ... Steel beam 3 ... Fireproof coating 4 ... Asbestos 5 ... Sheet 6 ... Closed space 7 ... Worker 8 ... Floor concrete 9 ... High-pressure jet water generator 10 ... Wheels 11 ... Stand 12 ... Drive unit 13 ... Power Transmission device 14 ... High pressure pump 15 ... Water tank 16 ... Tap water or industrial water 17 ... Pressure regulator 18 ... Injection gun 18a ... Barrel 18b ... Lever 18c ... Grip 18d ... Grip 19 ... High pressure hose 20 ... Distribution board 21 ... Nozzle 22 ... Water supply hose or water supply pipe 23 ... Hydrous asbestos 24 ... Vacuum hose 30 ... Keren rod 30a ... Grip bar 30b ... Keren knife 31 ... Work table 32 ... Falling asbestos 33 ... Asbestos dust
───────────────────────────────────────────────────── フロントページの続き (72)発明者 杉浦 正憲 東京都江戸川区北小岩６−39−６ (72)発明者 濱野 敏夫 埼玉県和光市本町29−11 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masanori Sugiura 6-39-6 Kitakoiwa, Edogawa-ku, Tokyo (72) Inventor Toshio Hamano 29-11 Honcho, Wako-shi, Saitama
Claims (3)
られている石綿に高圧噴流水発生装置のノズルから噴射
する高水圧の噴流水を吹き付け、水の高水圧により石綿
を吹き飛ばし剥離させる吹付石綿の剥離方法において、
石綿が吹き付けられている部位への前記ノズルの噴射角
度を30〜45度とし、石綿が吹き付けられている部位と前
記ノズルの距離を20〜30ｃｍとして、ノズル先端から圧
力500〜1000Ｋｇｆ／ｃｍ2 、水量５〜10リットル／ｍ
ｉｎの噴流水を石綿が吹き付けられている部位へ吹き付
けて石綿を剥離落下することを特徴とする吹付石綿の剥
離方法。1. A high-pressure jet water jet sprayed from a nozzle of a high-pressure jet water generator sprays asbestos sprayed on a ceiling, a wall or the like in a building, and the asbestos is blown off and separated by high water pressure of the water. In the asbestos peeling method,
The injection angle of the nozzle to the portion where the asbestos is sprayed is 30 to 45 degrees, the distance between the portion where the asbestos is sprayed and the nozzle is 20 to 30 cm, and the pressure from the nozzle tip is 500 to 1000 kgf / cm 2 . Water volume 5-10 liters / m
A method of removing asbestos, comprising spraying the jet water of "in" onto a portion to which the asbestos is sprayed to peel and drop the asbestos.
水平方向で30〜40度に設定する請求項１記載の吹付石綿
の剥離方法。2. The method of claim 1, wherein the jet angle of the jet water jetted from the nozzle is set to 30 to 40 degrees in the horizontal direction.
上に配電盤、駆動装置、動力伝達装置を介して前記駆動
装置に連結した高圧ポンプ、該高圧ポンプにそれぞれ接
続した給水タンクと圧力調整機を載置し、該圧力調整機
に噴射銃を接続した請求項１または請求項２に記載の吹
付石綿の剥離方法。3. A high-pressure jet water generator comprises a high-pressure pump connected to the drive device via a switchboard, a drive device, and a power transmission device on a movable base, and a water supply tank connected to the high-pressure pump. 3. The method of claim 1 or 2, wherein the machine is mounted and an injection gun is connected to the pressure regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP120998A JP2864121B1 (en) | 1998-01-07 | 1998-01-07 | How to remove sprayed asbestos |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP120998A JP2864121B1 (en) | 1998-01-07 | 1998-01-07 | How to remove sprayed asbestos |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2864121B1 JP2864121B1 (en) | 1999-03-03 |
| JPH11200639A true JPH11200639A (en) | 1999-07-27 |
Family
ID=11495087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP120998A Expired - Lifetime JP2864121B1 (en) | 1998-01-07 | 1998-01-07 | How to remove sprayed asbestos |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2864121B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6544568B2 (en) | 1998-12-15 | 2003-04-08 | Vsl Pharmaceuticals Inc. | Symbiotic functional food containing lactic acid bacteria |
| JP2008194565A (en) * | 2007-02-08 | 2008-08-28 | Taisei Corp | Processing system |
| JP2008231647A (en) * | 2007-03-20 | 2008-10-02 | Riitekku:Kk | Form for rationally detaching working space-isolating film-type working wear in method for removing toxic substance such as asbestos while isolating worker's space |
| JP2009028717A (en) * | 2007-06-27 | 2009-02-12 | Institute Of National Colleges Of Technology Japan | Asbestos detoxification method, asbestos detoxification method by on-site construction, and cutting method of asbestos-containing building materials |
| JP2012193516A (en) * | 2011-03-15 | 2012-10-11 | Shimizu Corp | Liquid injection jig |
-
1998
- 1998-01-07 JP JP120998A patent/JP2864121B1/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6544568B2 (en) | 1998-12-15 | 2003-04-08 | Vsl Pharmaceuticals Inc. | Symbiotic functional food containing lactic acid bacteria |
| JP2008194565A (en) * | 2007-02-08 | 2008-08-28 | Taisei Corp | Processing system |
| JP2008231647A (en) * | 2007-03-20 | 2008-10-02 | Riitekku:Kk | Form for rationally detaching working space-isolating film-type working wear in method for removing toxic substance such as asbestos while isolating worker's space |
| JP2009028717A (en) * | 2007-06-27 | 2009-02-12 | Institute Of National Colleges Of Technology Japan | Asbestos detoxification method, asbestos detoxification method by on-site construction, and cutting method of asbestos-containing building materials |
| JP2012193516A (en) * | 2011-03-15 | 2012-10-11 | Shimizu Corp | Liquid injection jig |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2864121B1 (en) | 1999-03-03 |
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