JP2521809B2 - Dust suppressor - Google Patents
Dust suppressorInfo
- Publication number
- JP2521809B2 JP2521809B2 JP1121880A JP12188089A JP2521809B2 JP 2521809 B2 JP2521809 B2 JP 2521809B2 JP 1121880 A JP1121880 A JP 1121880A JP 12188089 A JP12188089 A JP 12188089A JP 2521809 B2 JP2521809 B2 JP 2521809B2
- Authority
- JP
- Japan
- Prior art keywords
- dust
- foam
- foaming
- face
- tubular body
- 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.)
- Expired - Fee Related
Links
Description
［産業上の利用分野］ この発明は、粉塵抑制装置に関するものであり、特
に、トンネル掘削時等に於て発生する粉塵の抑制装置の
改良に関するものであって、建築物等の解体工事時に発
生する粉塵の抑制装置としても適用できる。 ［従来の技術］ 従来、トンネルの掘削時に於て発生する粉塵を抑制す
るために、 a:切羽若くは掘削部に多量の水を撒水して浮遊している
粉塵を抑制する。 b:掘削機の後方に集塵機を取付け、該集塵機にて浮遊し
ている粉塵を吸収する。 c:換気量を増大することにより粉塵を稀釈する。等の対
策が講ぜられていた。 ［発明が解決しようとする課題］ 上記ａ項記載の方法は大量の水を使用するため、土砂
地山の場合は該地山が劣化し、或は路盤の泥ねい化が促
進される欠陥がある。又、該路盤が泥ねい化することに
よりベルトコンベア等によるずり出し能力が低下した
り、或は前記欠陥に鑑み粉塵抑制のための撒水量を制限
すれば、トンネル内に粉塵が充満して坑内環境が著しく
悪化するのである。又、硬岩地山の場合に於ては、切削
時間が長いため前記の撒水量が大量となり、それによる
濁水処理量が増加する。更に、該撒水によつてカバーで
きる範囲が狭く、粉塵抑制には効果的に機能していない
と云う問題点があつた。又、上記ｂ項並びにｃ項記載の
方法を用いる場合は、集塵機等が大型であるにも拘ら
ず、継続して大量に発生する粉塵の抑制効果を期待し得
る程度には到らないのである。 そこで、周辺地山の劣化並びに路盤の泥ねい化等を防
止するために、吸塵用の泡をポンプ等によってノズルか
ら切羽面に向って噴射させ、該切羽面に発生する粉塵を
該泡に吸着させて沈積させるようにした装置が特開昭64
−14500号公報及び特開昭59−10697号公報によって既に
提案せられている。 而して、該公報記載のものは単に発泡機等を用いてノ
ズル先端から作業面に泡を噴射させる技術が開示されて
いるが、迅速且つ、効率良く粉塵を吸着して沈積させる
ための機能が欠けている。 そこで、実際にトンネルの切羽面等に生じる粉塵を迅
速且つ、効率良く吸着して沈下させることができるよう
にするために解決せらるべき技術的課題が生じてくるの
であり、本発明は該課題を解決することを目的とする。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust suppression device, and more particularly to an improvement of a dust suppression device generated during tunnel excavation or the like, which occurs during demolition work of a building or the like. It can also be applied as a dust suppression device. [Prior Art] Conventionally, in order to suppress dust generated during tunnel excavation, a: A large amount of water is sprinkled on the face or the excavated portion to suppress floating dust. b: A dust collector is attached to the rear of the excavator, and the dust collected in the dust collector is absorbed. c: Dilute dust by increasing ventilation. And other measures were taken. [Problems to be Solved by the Invention] Since the method described in the above item a uses a large amount of water, in the case of earth and sand ground, there is a defect that the ground is deteriorated or the mudification of the roadbed is promoted. is there. Further, if the roadbed becomes muddy, the ability to slide out due to a belt conveyor or the like decreases, or if the amount of water sprayed for dust suppression is limited in view of the above defects, the tunnel is filled with dust and The environment deteriorates significantly. Further, in the case of a hard rock ground, since the cutting time is long, the amount of water sprinkled becomes large and the amount of turbid water treated by it increases. Further, there is a problem that the area covered by the sprinkling water is narrow and it does not effectively function to suppress dust. Further, when the methods described in the above items b and c are used, the effect of suppressing a large amount of dust continuously generated cannot be expected even though the dust collector and the like are large. . Therefore, in order to prevent the deterioration of the surrounding ground and the muddying of the roadbed, a dust suction bubble is sprayed from the nozzle toward the face of the face by a pump or the like, and the dust generated on the face of the face is adsorbed to the bubble. Japanese Patent Laid-Open No. 64-64
It has been already proposed by Japanese Patent Application Laid-Open No. 14500 and Japanese Patent Application Laid-Open No. 59-10697. Thus, the one disclosed in the publication discloses a technique of simply ejecting bubbles from the nozzle tip to the work surface using a foaming machine or the like, but a function for adsorbing and depositing dust quickly and efficiently. Is missing. Therefore, there is a technical problem to be solved in order to be able to quickly and efficiently adsorb and sink the dust generated on the face face of the tunnel, etc. The purpose is to solve.
この発明は上記目的を解決するために提案せられたも
のであり、トンネル掘削時又は建築物の解体工事等に於
て、その切羽若くは掘削部に向って発泡装置にて生成さ
れる泡を連続的に噴射し、該泡によって機械作動中に発
生する粉塵を吸収せしめて下部に沈積させることができ
るようにした粉塵の抑制装置に於て、上記発泡装置は、
前端部に泡の噴射部を設けた筒状体内の前方部に、両面
開放の多数の小パイプを該筒状体の軸心方向に密接して
詰め込み、更に、該小パイプの始端部位に発泡液の噴射
ノズルを対設すると共に、その後方より圧縮空気を噴射
して前記噴射ノズルより噴射された発泡液を発泡させ
て、前記泡の噴射部より該泡を前方に向って噴射させる
ようにした粉塵抑制装置を提供するものである。This invention was proposed in order to solve the above-mentioned object, and at the time of tunnel excavation or demolition work of a building, etc., the foam generated by the foaming device toward the face of the face or the excavated part is generated. In a dust suppressor capable of continuously ejecting and absorbing dust generated during mechanical operation by the bubbles and depositing the dust in a lower portion, the foaming device comprises:
A large number of small pipes with open both sides are closely packed in the axial direction of the cylindrical body in the front part of the cylindrical body having a foam injection part at the front end, and foaming is further performed at the starting end portion of the small pipe. A liquid jetting nozzle is provided oppositely, and compressed air is jetted from the rear side to foam the foaming liquid jetted from the jetting nozzle, so that the bubbles are jetted forward from the bubble jetting section. The present invention provides a dust control device.
この発明の発泡装置は掘削現場の切羽若くは掘削部に
向うように掘削機等に取付けられるのであるが、該発泡
装置は筒状体内の前方部に両面開放の多数の小パイプが
該筒状体の軸心方向に密着して殆ど隙間なく詰め込まれ
ている。そして、該小パイプの始端部位に噴射ノズルが
対設され、該噴射ノズルより発泡剤を前記小パイプの始
端部位に向って噴射する。このとき、該発泡剤を膜状と
なる。更に、該噴射ノズルの後方から圧縮空気を噴射す
るので、前記発泡膜が該圧縮空気によつて泡となり、各
小パイプ内を通過して筒状体の先端部に設けた噴射部よ
り前方の切羽若くは掘削部に噴射し、周辺に発生してい
る粉塵を包被して沈積する。このとき、前記小パイプ
は、例えばポリプロピレンのパイプの蜂の巣状に詰め込
むことにより前記圧縮空気が整流されて均一なる泡の噴
射が可能となると共に、圧縮空気によつて該泡を遠くへ
噴射することも可能となるのである。 ［実施例］ 以下、本発明の一実施例を別紙添付図面に従って詳述
する。第１図に於て（１）は発泡装置を示す。該発泡装
置（１）は筒状体（1a）と、該筒状体（1a）の前方部に
取付けた噴射部（２）、及び該筒状体（1a）内面前方部
に隙間なく詰め込まれた小パイプ（３）（３）…、該小
パイプ（３）（３）…の前後端面に張設された金網
（４）（４）、並びに該小パイプ（３）（３）…の前方
部に配設された発泡剤の噴射ノズル（５）、及び該噴射
ノズル（５）の後方より圧縮空気を噴射するためのエア
ーホース（６）より成る。而して、前記筒状体（1a）の
背面（1b）は閉塞され塩ビパイプを用いて形成され、且
つ、その径は100mm程度のものを用いるを可とするが、
之に限定せらるべきではない。 更に、該筒状体（1a）の前面の開放部に前後開放の噴
射部（２）が嵌着されているが、該噴射部（２）は前記
筒状体（1a）より小径（約60mm程度）に絞るを可とす
る。然るときは、泡（Ｗ）（Ｗ）…をより遠くに噴射せ
しめることができるが、必ずしも之に限定せらるべきで
はない。又、前記小パイプ（３）（３）…はポリプロピ
レンパイプのストロー状のもので形成されるを可とする
が、材質等は特に之に限定せらるべきではない。而し
て、該小パイプ（３）（３）…は前記筒状体（1a）内に
相互に密着せしめて殆ど隙間なく詰め込めれており、そ
して、該小パイプ（３）（３）…の前後端面に金網
（４）（４）が張設せられている。又、前記噴射ノズル
（５）は、タンク（７）内の発泡液（８）をポンプ
（９）にて前記小パイプ（３）（３）…の始端部に張設
された前記金網（４）の面に噴射する。然るときは、該
発泡液（８）は金網（４）の表面に於て膜状となる。 一方、前記エアーホース（６）の先端部（6a）は前記
筒状体（1a）の背面（1b）側に向って配設されており、
コンプレツサー（10）の圧縮空気を前記筒状体（1a）の
背面（1b）に噴射せしめて該圧縮空気を拡散させ、そし
て、該拡散した圧縮空気は該筒状体（1a）内を前方に方
向転換して前記膜状に形成された発泡液（８）に噴射さ
れ、ここで、該膜状の発泡液（８）は泡（Ｗ）（Ｗ）…
に形成され、前記圧縮空気と共に前記小パイプ（３）
（３）…内に分散して前方の噴射部（２）に送られ、該
噴射部（２）の先端より該泡（Ｗ）（Ｗ）…が噴射され
ることになる。 尚、第１図に於て（11）は圧力計であり、（12）はバ
ルブ、（7a）は発泡液供給ホースを示す。 而して、前記発泡装置（１）は第２図に示すロードヘ
ツダーと称せられるトンネル掘削機（13）の上部前方部
位に取付けられ、そして、前記噴射部（２）が切羽
（Ｋ）面に対峙して設けられ、該掘削機（13）にて切羽
（Ｋ）面を掘削するときに生じる粉塵は前記噴射部
（２）より噴射せられる泡（Ｗ）（Ｗ）…にて包被せら
れて下部に落下して沈積する。そこで、該沈積物は掘削
物と共にスクレーパー（14）及びコンベア（15）を介し
て後方へ移送することができる。 又、第３図に示すものはブレーカと称せられる掘削機
（13a）である。この掘削機（13a）の先方部位に前記発
泡装置（１）が取付けられ、そして、該噴射部（２）が
掘削部（Ｈ）に対面する如く配設されて前述のロードヘ
ツダーに取付けられた発泡装置（１）と同様の作用を為
すのである。 斯くの如く、発泡液（８）は筒状体（1a）内に送られ
て膜状となり、そして、前記圧縮空気の噴射にて泡
（Ｗ）（Ｗ）…が生成され、小パイプ（３）（３）…を
介して噴射部（２）より前方に噴射されて粉塵を悉く包
被することになるが、該小パイプ（３）（３）…によつ
て前記圧縮空気はその流れが整流となり、依って、前記
噴射部（２）から該泡（Ｗ）（Ｗ）…を噴射するとき、
該圧縮空気は均一となつて周辺に浮遊している粉塵を効
率よく包被して作業環境を著しく向上せしめることがで
きるのである。 尚、この発明は、この発明の精神を逸脱しない限り種
々の改変を為す事ができ、そして、この発明が該改変せ
られたものに及ぶことは当然である。 ［発明の効果］ この発明は上記一実施例に於て詳述せる如き装置に係
るので、発泡液は少量（毎分約5l程度）の液体でトンネ
ル掘削時の粉塵を抑制でき、更に、該発泡液にて生成さ
れる泡は圧縮空気を利用して泡生成と共に掘削部位に噴
射されるように構成したため、電動フアンに比べて装置
自体が軽量且つコンパクトに形成できてコストダウンに
も寄与できる。更に、小パイプを密集して筒状体に詰め
込んでいるので圧縮空気も整流でき、均一に泡を噴射で
きると共に、より遠くに噴射させることができる。The foaming device of the present invention is attached to an excavator or the like so as to face the face of the excavation site or the excavating part. However, the foaming device has a large number of small pipes open on both sides in the front part of the tubular body. It is closely packed in the axial direction of the body and packed with almost no gap. An injection nozzle is provided opposite to the starting end portion of the small pipe, and the foaming agent is injected from the injection nozzle toward the starting end portion of the small pipe. At this time, the foaming agent becomes a film. Further, since compressed air is injected from the rear of the injection nozzle, the foamed film becomes bubbles due to the compressed air, passes through each small pipe, and is located in front of the injection portion provided at the tip of the tubular body. It is injected into the face of the face or the excavated part, and the dust generated in the surrounding area is covered and deposited. At this time, by packing the small pipes in a honeycomb shape of polypropylene pipes, for example, the compressed air is rectified so that uniform bubbles can be jetted, and the bubbles can be jetted away by the compressed air. It is also possible. [Embodiment] An embodiment of the present invention will be described below in detail with reference to the attached drawings. In FIG. 1, (1) shows a foaming device. The foaming device (1) is packed in a tubular body (1a), an injection part (2) attached to the front part of the tubular body (1a), and the front part of the inner surface of the tubular body (1a) without a gap. Small pipes (3) (3) ..., wire nets (4) (4) stretched on the front and rear end faces of the small pipes (3) (3), and the front of the small pipes (3) (3). And a hose (6) for injecting compressed air from the rear of the injection nozzle (5). Then, the back surface (1b) of the tubular body (1a) is closed and formed by using a vinyl chloride pipe, and the diameter thereof can be about 100 mm.
You should not be limited to this. Furthermore, the injection part (2) which is open in the front and back is fitted in the open part on the front surface of the tubular body (1a), and the injection part (2) has a smaller diameter (about 60 mm) than the tubular body (1a). It is possible to narrow down to (degree). In that case, the bubbles (W), (W), etc. can be ejected further, but it is not necessarily limited thereto. Further, the small pipes (3) (3) ... May be formed of polypropylene pipes having a straw shape, but the material and the like should not be particularly limited. Thus, the small pipes (3) (3) ... Are closely packed in the tubular body (1a) and packed together with almost no space, and the small pipes (3) (3). Wire meshes (4) and (4) are stretched on the front and rear end faces. Further, the injection nozzle (5) is arranged such that the foaming liquid (8) in the tank (7) is stretched by a pump (9) at the starting ends of the small pipes (3) (3). ) To the surface. In that case, the foaming liquid (8) becomes a film on the surface of the wire netting (4). On the other hand, the tip portion (6a) of the air hose (6) is arranged toward the rear surface (1b) side of the tubular body (1a),
The compressed air of the compressor (10) is jetted to the back surface (1b) of the tubular body (1a) to diffuse the compressed air, and the diffused compressed air moves forward in the tubular body (1a). The foaming liquid (8) is turned around and ejected into the film-shaped foaming liquid (8), where the film-forming foaming liquid (8) is bubbles (W) (W) ...
And the small pipe (3) together with the compressed air
(3) Dispersed in the inside and sent to the injection part (2) in the front, and the bubbles (W) (W) are injected from the tip of the injection part (2). In FIG. 1, (11) is a pressure gauge, (12) is a valve, and (7a) is a foaming liquid supply hose. Then, the foaming device (1) is attached to the upper front part of the tunnel excavator (13) called a road header shown in FIG. 2, and the injection part (2) faces the face (K). The dust generated when the face (K) is excavated by the excavator (13) is covered by the bubbles (W) (W) ... It falls to the bottom and sinks. There, the deposit can be transported backwards together with the excavated material via the scraper (14) and the conveyor (15). Moreover, what is shown in FIG. 3 is an excavator (13a) called a breaker. The foaming device (1) is attached to the tip of the excavator (13a), and the injection part (2) is arranged so as to face the excavation part (H) and is attached to the above-mentioned load header. It has the same function as the device (1). As described above, the foaming liquid (8) is sent into the tubular body (1a) to form a film, and bubbles (W) (W) ... Are generated by the injection of the compressed air, and the small pipe (3) is generated. ) (3) ... Is injected forward from the injection part (2) to cover the dust, but the flow of the compressed air is reduced by the small pipes (3) (3). As a result, when the bubbles (W), (W), ... Are jetted from the jetting section (2),
The compressed air is uniform, and the dust floating around can be efficiently covered to significantly improve the working environment. Incidentally, the present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified one. [Effect of the Invention] Since the present invention relates to the device as described in detail in the above-mentioned one embodiment, the foaming liquid can suppress dust at the time of tunnel excavation with a small amount (about 5 l / min) of the liquid. The bubbles generated by the foaming liquid are configured to be injected into the excavation site together with bubble generation using compressed air, so the device itself can be made lighter and more compact than the electric fan, which can also contribute to cost reduction. . Further, since the small pipes are densely packed and packed in the cylindrical body, the compressed air can be rectified, and the bubbles can be uniformly ejected and ejected further away.
図は本発明の一実施例を示し、第１図は発泡装置の解説
縦断側面図、第２図及び第３図は施工状態を示す解説側
面図である。 （１）……発泡装置、（1a）……筒状体 （２）……噴射部、（３）……小パイプ （５）……噴射ノズル、（６）……エアーホース （８）……発泡液FIG. 1 shows an embodiment of the present invention. FIG. 1 is an explanatory vertical side view of a foaming device, and FIGS. 2 and 3 are explanatory side views showing a construction state. (1) ... foaming device, (1a) ... tubular body (2) ... injection part, (3) ... small pipe (5) ... injection nozzle, (6) ... air hose (8) ... ... Bubbling liquid
───────────────────────────────────────────────────── フロントページの続き (72)発明者 永田 亮 神奈川県横浜市港北区大豆戸町480―１ 菊名ハイツ１―514 (72)発明者 竹川 應仁 東京都中央区銀座７―13―15 株式会社 協立有機工業研究所内 (72)発明者 佐藤 一行 神奈川県高座郡寒川町一の宮1277 晴美 荘１―Ａ (72)発明者 三島 芳夫 東京都足立区足立２―49―10 (56)参考文献 特開 昭59−10697（ＪＰ，Ａ) 特開 昭64−14500（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ryo Nagata Ryo Nagata 48-1, Soyado-cho, Kohoku-ku, Yokohama-shi Kanagawa 1-514 Kikuna Heights (72) Inventor Ohhito Takekawa 7-13-15 Ginza, Chuo-ku, Tokyo Kyoritsu Organic Industry Research Institute (72) Inventor Kazuyuki Sato 1277 Izuminomiya, Samukawa-cho, Takaza-gun, Kanagawa Harumi-so 1-A (72) Inventor Yoshio Mishima Adachi-ku, Tokyo Adachi 2-49-10 (56) References 59-10697 (JP, A) JP-A 64-14500 (JP, A)
Claims (1)
於て、その切羽若くは掘削部に向って発泡装置にて生成
される泡を連続的に噴射し、該泡によって機械作動中に
発生する粉塵を吸収せしめて下部に沈積させることがで
きるようにした粉塵の抑制装置に於て、上記発泡装置
は、前端部に泡の噴射部を設けた筒状体内の前方部に、
両面開放の多数の小パイプを該筒状体の軸心方向に密接
して詰め込み、更に、該小パイプの始端部位に発泡液の
噴射ノズルを対設すると共に、その後方より圧縮空気を
噴射して前記噴射ノズルより噴射された発泡液を発泡さ
せて、前記泡の噴射部より該泡を前方に向って噴射させ
るようにしたことを特徴とする粉塵抑制装置。1. When a tunnel is being excavated or a building is being demolished, foam generated by a foaming device is continuously ejected toward the face of the face or the excavated portion, and the foam is used during machine operation. In a dust suppressor capable of absorbing the generated dust and depositing it in the lower portion, the foaming device has a front portion inside a tubular body provided with a foam injection portion at a front end portion,
A large number of small pipes open on both sides are closely packed in the axial direction of the tubular body, and further, a foaming liquid injection nozzle is provided at the starting end portion of the small pipe, and compressed air is injected from the rear of the nozzle. The dust suppressing device is characterized in that the foaming liquid sprayed from the spray nozzle is foamed so that the foam is sprayed forward from the spray part of the foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1121880A JP2521809B2 (en) | 1989-05-16 | 1989-05-16 | Dust suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1121880A JP2521809B2 (en) | 1989-05-16 | 1989-05-16 | Dust suppressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02300500A JPH02300500A (en) | 1990-12-12 |
| JP2521809B2 true JP2521809B2 (en) | 1996-08-07 |
Family
ID=14822210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1121880A Expired - Fee Related JP2521809B2 (en) | 1989-05-16 | 1989-05-16 | Dust suppressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2521809B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3008338B2 (en) * | 1996-03-25 | 2000-02-14 | ニチアス株式会社 | How to sample from insulated panels |
| JP2002115266A (en) * | 2000-10-11 | 2002-04-19 | Suzuki Shoji:Kk | Self-propelled construction machinery equipped with foam device |
| JP2009287296A (en) * | 2008-05-29 | 2009-12-10 | Suzuken Kogyo Kk | Working machine used for civil engineering operation, construction operation or dismantling operation |
| CN102061917A (en) * | 2010-12-03 | 2011-05-18 | 煤炭科学研究总院太原研究院 | Heading machine-mounted foam dedusting system |
| CN102536236B (en) * | 2011-12-30 | 2014-07-16 | 中国矿业大学 | Settling, isolating and removing integrated dust prevention method of fully mechanized excavation face |
| CN103388484A (en) * | 2012-05-08 | 2013-11-13 | 中国矿业大学(北京) | No-air-source foam plug dust removing system applied to underground coal mine |
| JP6286489B2 (en) * | 2016-07-15 | 2018-02-28 | 鈴健興業株式会社 | Work machine |
| JP6982844B2 (en) * | 2017-01-23 | 2021-12-17 | 鈴健興業株式会社 | Work machine |
| CN114504957A (en) * | 2022-02-24 | 2022-05-17 | 中国铁建重工集团股份有限公司 | Foam generating device and method |
| CN116492799A (en) * | 2023-05-11 | 2023-07-28 | 广东明晔建设工程有限公司 | Environment-friendly dust falling device for highway engineering construction |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910697A (en) * | 1982-07-09 | 1984-01-20 | 株式会社 間組 | Method of removing dust by excavation of tunnel excavator |
| JPS6414500A (en) * | 1987-07-09 | 1989-01-18 | Hazama Gumi | Prevention of diffusion for blasting dust |
-
1989
- 1989-05-16 JP JP1121880A patent/JP2521809B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02300500A (en) | 1990-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |